JB/T 6517-1992 Technical requirements for hydrogen oil water control systems
Some standard content:
1 Subject content and scope of application
Machinery Industry Standard of the People's Republic of China
Technical conditions for hydrogen oil water control system
This standard specifies the technical conditions for hydrogen oil water control system for generator. JB/T651792
This standard applies to hydrogen control system, sealing oil control system, winding cooling water control system and its automation components for generators that use hydrogen, water or both cooling media for indirect or direct cooling. 2 Reference standards
GB2537
GB1497
Turbine oil
Basic standards for low-voltage electrical appliances
GB3452.1 Dimension series and tolerances of O-rings for hydraulic and pneumatic applicationsGB2555
Dimensions of pipe flange connections for general purposes
GB2556
Shape and dimensions of sealing surfaces of pipe flanges for general purposesBasic test methods for low-voltage electrical appliances
GB3836.1 Explosion-proof electrical equipment for explosive atmospheresJB4159
JB2836||t t||General technical requirements for tropical electrical products
Tropical low-voltage electrical appliances
Electroplating and chemical coatings for electrical productsHG4-329 annular rubber sealing products
GB7064
General technical conditions for steam turbine generators
GB1048
JB2146
3 Terms
Nominal pressure and test pressure of pipes and pipeline accessoriesTechnical indicators for factory test of hydraulic components
3.1 Hydrogen-oil pressure difference, the pressure difference between the hydrogen in the generator and the sealing oil at the sealing ring inside the generator sealing shoe. 3.2 Hydrogen side oil: In the generator sealing oil system, the sealing oil that flows through the inner side of the sealing shoe and contacts the hydrogen inside the generator is called hydrogen side oil, i.e. hydrogen side sealing oil.
3.3 Air side oil: In the generator sealing oil system, the sealing oil that flows through the outer side of the sealing shoe and contacts the air outside the generator is called air side oil, i.e. air side sealing oil.
3.4 Hydrogen-air side oil pressure difference; refers to the pressure difference between the hydrogen side sealing oil and the air side sealing oil. 3.5 Automation components; automatic devices used for the start, operation, stop, accident shutdown and accident alarm of the hydrogen-oil-water system, which mainly refers to the equipment used for monitoring, conversion, sensing, and operation of pressure, temperature, liquid level, pressure difference, flow, purity, etc. on the control system and the central control room, excluding devices for monitoring and operating electricity such as secondary circuits and relay protection. 3.6 System: The whole composed of automation components and their pipelines and accessories is collectively referred to as the system, including electrical systems, gas systems, cooling water systems and mechanical hydraulic systems. wwW.bzxz.Net
Approved by the Ministry of Machinery and Electronics Industry on December 21, 1992 and implemented on May 1, 1993
4 Technical requirements
4.1 Applicable conditions
4.1.1 The altitude shall not exceed 1000m.
Ambient temperature 5~40℃.
JB/T651792
The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is 25℃. Requirements for the working medium used in the hydrogen oil water system 4.1.4.1 Requirements for hydrogen:
The purity of hydrogen added to the system shall not be less than 99.5%. The temperature of hydrogen added to the system shall be ≤30℃. The humidity of hydrogen added to the system shall be the water content of hydrogen humidity p,+1 equivalent to or less than the rated hydrogen pressure in the machine (P, is the rated hydrogen pressure value in the machine).
4.1.4.2 The purity of carbon dioxide gas shall be above 97%, and the water content shall be less than 10g/m3 at atmospheric pressure and temperature of 20℃. Compressed air shall be filtered and dried, and the water content shall not exceed 10g/m3 at atmospheric pressure and temperature of 20℃. 4.1.4.3
The sealing oil control system shall use HU-20 turbine oil in accordance with GB2537 standard, and its water content shall be less than 4.1.4.4
The water quality of the external system supplying water to the generator winding water control system shall meet the following requirements. 4.1.4.5
The supply water temperature is 20～45℃;
The supply water quality is transparent and pure, without mechanical debris; b.
The conductivity is ≤0.5μs/cm at a water temperature of 20℃; The pH value of the supply water is 7～7.5;
The hardness of the supply water is ≤2μg/L.
4.1.4.6The various gas sources, oil sources, water sources and power sources used in the hydrogen oil water control system shall comply with relevant standards to ensure safety and reliability. 4:2 Automation components
4.2.1 The temperature rise value, insulation resistance value and withstand voltage value of electrical components shall comply with the provisions of GB1497 and JB834. 4.2.2 For metal parts in hydraulic (pneumatic) components that are often in contact with water or humid air, anti-rust materials or anti-corrosion measures shall be used in design.
4.2.3 For pressure-bearing parts in hydraulic (pneumatic) components, water pressure strength and sealing tests shall be carried out according to the test pressure P. and duration specified in GB1048. If P. is less than 0.8MPa, the test shall be carried out at 0.8MPa for 15min, and the water tank around the water system shall be tested according to the design requirements.
4.2.4 After the hydraulic (pneumatic) components are assembled, the sealing test shall be carried out according to the rated pressure P, or the design specified value, for 30min, and the leakage shall comply with the design specified value.
4.2.5 After the hydraulic components are assembled, the rated oil pressure P shall be tested. , water pressure P. and the leakage under the specified temperature and time shall not exceed the design specified value. 4.2.6 O-type rubber seal diagram shall comply with the requirements of GB3452.1, and its material shall comply with the requirements of HG-329. 4.2.7 For products used in the surrounding environment with relative humidity greater than 90%, the metal plating and chemical compound layer shall not be lower than the requirements of JB4159 Level 2 and JB2836.
4.2.8 The connection dimensions and sealing surface shape dimensions of the external flange of the automation component shall comply with the requirements of GB2555 and GB2556. 4.2.9 The accuracy of various instruments shall not be lower than Class 1.5 when there are no special requirements. 4.2.10 Components used in hydrogen systems or in contact with hydrogen must comply with the requirements of GB3836 explosion-proof standards. 4.2.11 Components, valves, pipeline fittings, etc. used in hydrogen and oil systems must use cast steel parts, and cast iron products shall not be used. 4.2.12 The components, valves, pipes, pipe fittings, etc. used in the water system that come into contact with cooling water must be made of stainless steel with corrosion resistance not less than 1Cr18Ni9Ti (except for heat pipes and individual small joints used in coolers). 74
JB/T6517-92
4.2.13 The product has a beautiful appearance, and the wiring and piping should be neat and reasonable for easy use and maintenance. 4.2.14 Various components should meet the following performance requirements respectively; 4.2.14.1 When the circulating water temperature of the cooler of the water system and the oil system does not exceed 33°C, it should be able to ensure that the water and oil temperatures after cooling meet the design requirements.
4.2.14.2 Various filters should be able to ensure that the filtered gas does not contain particles larger than 180μm, and the water and oil do not contain particles larger than 105um.
4.2.14.3 The outlet working pressure and flow curve of the injector, the test data of the pressure and flow of the power oil source and the suction oil source shall meet the design requirements.
4.2.14.4 The test data and curve of the pressure and flow of the oil-gas differential pressure valve and the pressure balance valve shall meet the design requirements. 4.2.14.5 The hydrogen analyzer shall send a signal when the hydrogen purity is -2% of the normal value. 4.2.14.6 The conductivity meter shall send a signal when the conductivity of the winding cooling water is 5 or 10μs/cm respectively. 4.2.14.7 The water level gauge of the water tank, the oil level gauge of the sealed oil tank, and the oil-water signal device in the generator shall send a signal within the range of the high liquid level setting value +20mm and the low liquid level setting value -20mm. 4.2.14.8 The hydrogen dryer, when passing hydrogen with the rated purity, pressure, humidity and temperature required in the generator, shall meet the following requirements; when the hydrogen flow meets the design requirements, the inlet and outlet pressure difference shall be less than the generator fan pressure difference. a.
The outlet hydrogen humidity shall be less than or equal to 98% of the hydrogen humidity in the generator, and the desiccant validity period shall be greater than 3 months. b.
The sealing performance shall be based on the rated pressure P, value, time is 8h, and the pressure drop shall be ≤0.0002MPa. 4.3 Control system
4.3.1 Hydrogen control system·
No malfunction or refusal to operate is allowed during the opening and closing of the hydrogen pressure regulating valve and solenoid valve. b: The gas control device shall be subjected to an airtight leak test in the air state of the rated working pressure, and the pressure drop shall be <0.002MPa/8h. 4.3.2 Sealing oil control system
When the main working oil source (injector or AC/DC oil pump) fails or other reasons occur, causing the system oil pressure to drop to the minimum, the backup oil source should be able to automatically start operation, and the interval from the occurrence of pressure reduction to the restoration of normal working oil pressure shall not exceed 3$; b.
The oil-gas pressure differential valve can automatically adjust the sealing oil pressure according to the rise and fall of hydrogen pressure in the generator; ensure that the hydrogen-oil pressure difference is above 0.03MPa.
The pressure balance valve can automatically track the rise and fall of the air side sealing oil pressure to adjust the hydrogen side sealing oil pressure. When the hydrogen pressure is below 0.3MPa C.
, the hydrogen-air side pressure difference is within ±0.00015MPa, and when the hydrogen pressure is above 0.3MPa, the hydrogen-air side pressure difference is ±0.00075MPa. d. The air side sealing oil must have at least three oil sources, one working and two backup, and must have two AC and DC power supplies for mutual backup to ensure reliable operation of the oil system.
e. The oil filling and draining device of the oil seal box can automatically fill and drain oil to maintain the normal oil level according to the design value ±20mm, and can send out the indication signal for filling and draining oil.
There should be an inspection window and a thermometer on the oil outlet pipe of the generator seal. It is also necessary to install remote temperature and limit signal components. f.
The air side return oil hydrogen oil separator and smoke exhaust fan should be added to the system to ensure that the separated hydrogen is discharged smoothly outside the factory. g
The filter and cooler in the hydrogen air side sealing oil control system should have 100% backup. 4.3.3 Winding cooling water control system
a: When the working water pump fails or other reasons occur and the system water pressure drops to the minimum, the standby water pump should be able to automatically start and put into operation. The interval from the occurrence of pressure reduction to the restoration of working water pressure shall not exceed 30s. The water pressure in the winding should be at least 0.03MPa lower than the hydrogen pressure in the machine. b.
Peak-shaving units and generators with a power of 300MW and above should be equipped with water temperature regulators to ensure that the inlet water temperature fluctuation value of the winding cooling water during operation is ≤5℃.
The water temperature and water quality of the winding cooling water should meet the requirements of GB7064. d.
The filters and water pumps in the winding cooling water control system should have 100% backup, and the cooler should have more than 50% backup to ensure that the 75
unit can operate at full load.
JB/T6517-92
The water tank's water supply and drainage device can automatically replenish and drain water according to the design specified value ± 20mm to maintain the normal water level and can alarm. t.
The differential pressure gauge, remote temperature and limit signal components must be installed on the generator winding cooling water inlet and outlet pipes. g.
The flow meter must be installed on the generator winding cooling water inlet main pipe, and it can send out an alarm signal according to the design specified value. 4.3.4
The generator and its control system can send out alarm signals when the following abnormal conditions occur. a.
There is oil or water leakage in the generator;
The hydrogen pressure in the generator is too high or too low;
The hydrogen purity in the generator is too low;
The oil inlet pressure of the sealing bearing is too low or too high;
The oil inlet temperature of the sealing bearing is too high or too low;
The oil outlet temperature of the sealing bearing is too high;
The hydrogen-water pressure difference in the generator is too low:
The water inlet temperature of the winding is too high or too low;
The water outlet temperature of the winding is too high;
The cooling water flow of the winding is too low;
The conductivity of the cooling water of the winding is too high;
The water inlet and outlet pressure difference of the winding is too high or too low;
Other abnormal conditions.
·Note: If there are special requirements for specific products, the ordering party and the manufacturer can discuss them together on the basis of this standard. 5 Inspection and test methods
The purchased parts and outsourced parts used in the product should have a certificate or report of inspection and test conducted by the manufacturer of the part. 5. Re-appearance inspection
It shall be carried out in accordance with relevant regulations.
5.2 Insulation resistance measurement and withstand voltage test of electrical components 5.2.1 The insulation resistance measurement shall be carried out in accordance with the method of Chapter 6 of GB998, and the approximate conversion method of its measured value at different humidity and relative humidity shall be in accordance with Appendix A.
5.2.2 The withstand voltage test shall be carried out in accordance with Chapter 6 of GB998. 5.3 The moisture resistance test of electrical components shall be carried out in accordance with Chapter 6 of GB998. 5.4 The test pressure of the hydraulic strength and material sealing of the pressure-bearing parts of the hydraulic (gas) pressure components shall be gradually increased to the test pressure P. (P,=1.5 rated pressure P,), and no sharp or sudden increase is allowed: the test duration is 15 minutes, during which the pressure remains unchanged, and the gas in the cavity is discharged during the test. If there is any doubt during the test, the test time must be extended or the test must be repeated.
5.5 Sealing performance test of hydraulic (gas) pressure components after assembly The test medium is the working medium of the product, the test pressure is P., the test time is 30 minutes, during which the pressure is not lower than P. If there is any doubt during the test, the test time must be extended or the test must be repeated. 5.6 Internal leakage test of hydraulic components
Apply the rated pressure P, the test medium is the working medium of the product, and the internal leakage at the overflow of the medium at 20C should meet the requirements of the design or JB2146. It is allowed to measure with similar media and temperature, and then make an approximate conversion. 5.7 Action test of each liquid (gas) pressure component
5.7.1 Use the oil pressure, air pressure and water pressure specified in the design to connect or disconnect each passage according to the design requirements of each component, and reciprocate 5 times. 5.7.2 For the accident low pressure specified in the design, the action test should be carried out 3 times. When the regulations are unclear, the accident low pressure can be 0.6 to 0.7 times the rated pressure.
5.8 Action test of liquid level signal
JB/T6517-92
Fix the liquid level signal on a container, inject or discharge the working medium, so that the liquid level rises or falls, and act 10 times each. Each signal contact sends a signal, and the repeated action error value of each contact is measured. 5.9 Solenoid valve action test
The rated pressure and the specified working medium should be passed according to the design requirements, and 85% and 110% of the rated voltage should be applied respectively, so that the up and down (or reciprocating) actions are continuously performed 50 times each, and the working stroke and the specified flow value of the solenoid valve are measured. 5.10 Solenoid valve action test after static
The rated pressure and working medium should be passed, and the test should be conducted according to the action requirements after static measurement for 72 hours. 5.11 Directional valve action, flow and action test after static measurement 5.11.1 Action test: Pass the oil pressure specified in the design, connect or disconnect each passage according to the design requirements, and reciprocate 5 times. 5.11.2 Flow test: Pass the oil pressure specified in the design, and measure the flow according to the design requirements. 5.11.3 Action test after static measurement: Pass the rated oil pressure, and conduct the test according to the action requirements after static measurement for 72 hours. 5.12 Float valve action test
5.12.1 Action test: The oil pressure and air pressure specified in the design should be passed through the special test equipment to make the liquid level rise or fall, and each action should be performed 50 times continuously, and the opening and closing stroke errors should be measured. 5.12.2 While conducting the test in 5.12.1, the flow value when the oil leakage is fully opened should be measured. 5.12.3 Under various conditions specified in the design, let it stand for 72 hours respectively, and conduct the test according to the action requirements. 5.13 Oil-gas pressure differential valve action test
5.13.1 Installed on the special test equipment, the air pressure should be raised and lowered for 5 times according to the design requirements, and the air-oil pressure difference and flow value should be measured on the outlet pipe of the regulating valve, and the error of the air-oil pressure difference should be calculated. 5.13.2 Measure the output flow according to the order of rising and falling air pressure, and make a rising and falling flow curve. 5.14 Pressure balance action test
Install on special test equipment, pass oil pressure up and down 5 times according to design requirements, measure oil pressure and flow value on the balance valve outlet pipe, and calculate the sensitivity of balance pressure difference. 5.15 Injector performance test
5.15.1Install on special test equipment, pass power oil pressure and auxiliary oil pressure according to design requirements, adjust the outlet pipe oil pressure up and down 5 times, measure oil pressure and outlet oil flow, power oil flow and suction oil flow at the same time. 5.15.2 Make working section curve or data of outlet flow and pressure according to design requirements. 5.16 Hydrogen dryer performance test
5.16.1Pass hydrogen with rated working pressure and humidity in the generator according to design requirements, measure working pressure difference, hydrogen flow and humidity on the inlet and outlet pipes.
5.16.2· If equipped with fans and other electrical components, it shall have an "explosion-proof certificate" that complies with the relevant explosion-proof standards of GB3836, and conduct an action performance test according to the design requirements.
5.17 Action test of hydrogen pressure reducing regulator
According to the design requirements, the inlet is connected to a gas source with the specified pressure of the design, and the outlet is connected to a pressure vessel. Manually adjust the hydrogen pressure reducing regulator to stabilize the pressure in the pressure vessel at the required working pressure, and then reduce the pressure in the pressure vessel to start automatic gas replenishment and restore the working pressure. Perform 5 actions and measure the pressure error value of gas replenishment and gas replenishment stop (it should be within the design setting value of 0.002MPa range). 5.18 Cooler heat exchange performance test
Cooler heat exchange performance test is allowed to be tested on site (can be tested on site if no conditions are met/intention). 5.18.1 The test should be carried out on a special test device according to the cold and hot fluid pressure and flow parameters specified in the design. 5.18.2 According to the design requirements, a certain flow of working medium is passed through the cold and hot fluid channels, and the pressure, temperature and flow values of the cold and hot fluid inlets and outlets are measured respectively.
5.19 Hydrogen analyzer field test
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The hydrogen analyzer field test should be carried out after the hydrogen system is put into power generation operation and relevant data are obtained. 5.19.1 Measure the inlet and outlet pressure difference or hydrogen flow rate and hydrogen purity value, and a signal can be issued when the hydrogen purity drops to the design limit value. 5.19.2 Take samples for analysis at a certain point on the inlet and outlet pipes of the hydrogen analyzer or use a standard instrument to measure its hydrogen purity value. 5.19.3 Use two methods to check the results and determine the error value of the hydrogen analyzer. Conductivity meter field test
The conductivity meter field test should be carried out after the water system is put into power generation operation and relevant data are obtained: 5.20.1 Measure the inlet and outlet pressure difference or water flow, and conductivity value. A signal can be sent when the conductivity rises to the design limit value. Take samples at a certain point on the inlet and outlet pipes of the conductivity meter for analysis or use a standard instrument to measure its water conductivity value. 5.20.2
5.20.3 Use two methods to check the results and determine the error value of the conductivity meter. 5.21 Hydrogen control device test
5.21.1 After the various components on the device are inspected and tested to meet the requirements, the overall P and airtightness leak detection test of the device are carried out according to the design requirements using the method in Article 5.4.
5.21.2 The amount should be equipped with a fixed container. After the working air pressure is passed according to the design requirements, the working air pressure should be adjusted to rise and fall. When it drops to the lowest limit value, it should automatically replenish air and stop when it reaches the working pressure. Repeat the action 5 times. 5.21.3 The generator water and oil leakage monitor equipped with a liquid level signal should be filled with oil for 3 times according to the design requirements, and the starting signal position should be measured. 5.22 Sealing oil assembly test
After the components on the assembly meet the requirements after inspection and testing, the overall P of the assembly shall be carried out according to the design requirements using the method of Article 5.4. Sealing performance 5.22.1
Test.
When the air pressure in the sealing oil tank is zero, perform the following tests according to the design requirements: 5.22.2
Measure the oil pressure and flow rate at the hydrogen side and air side outlets respectively. a.
Measure the error value of the oil seal box oil replenishment and drainage action and the signal of too high and too low oil level: When the air pressure in the oil seal box is the rated air pressure, repeat the test of 5.22.2 ab according to the design requirements. 5.22.3
5.22.4·The air pressure in the oil seal box rises from zero pressure to the rated air pressure, and then drops from the rated air pressure to zero pressure, repeat 3 times, and measure the outlet oil pressure and flow value.
5.23: Water assembly test
5.23.1 After the components on the assembly meet the requirements after inspection and testing, the assembly P, sealing performance test is carried out according to the design requirements using the method of 5.4.
5.23.2 When the water tank air pressure is zero pressure, perform the following test according to the design requirements: measure the outlet pressure and flow value.
b, measure the error value of the water tank replenishment and drainage action and the signal of too high and too low water level. 5.24 Field test of hydrogen, oil and water control system
Field test of hydrogen, oil and water control system should be carried out before the normal operation of the generator set. Field test of hydrogen control system:
Automatic air replenishment test action 5 times, and measure the action error value; measure the hydrogen humidity and flow rate of hydrogen dryer inlet and outlet: measure the hydrogen pressure difference of hydrogen dryer inlet and outlet; measure the error value of low hydrogen purity alarm signal. Field test of sealing oil control system:
Oil injector is put into operation test, and the relevant pressure error value is measured; cooler cold and hot fluid inlet and outlet temperature and pressure measurement; oil pump switching test,
pressure regulating valve, pressure balance valve test, measure hydrogen oil pressure difference, hydrogen side and air side balance pressure difference. Seal bearing oil inlet pressure too high and too low alarm signal error measurement; g.
JB/T6517-92
Seal bearing oil inlet and outlet oil temperature too high alarm signal error measurement; oil seal box oil replenishment and drainage performance test.
On-site test of the winding cooling water control system: measurement of the inlet and outlet temperature, pressure and flow rate of the cold and hot fluids of the cooler; measurement of the inlet and outlet conductivity of the ion exchanger. Ion exchanger flow measurement;
Linkage test of the water tank level gauge and the water supply solenoid valve. Reliability test of the action of solenoid valve components
The test is carried out at room temperature, the test voltage is the rated voltage, and the rest is in accordance with the requirements of the action test. 5.25.1
Use the magnetic positioning of the component itself and the locking positioning of the component itself. The action frequency shall not be less than 6 times per minute, and the interval time between two tests shall not exceed 12 hours. 5.25.3
No parts shall be cleaned, repaired or replaced during the test. The number of actions is 2000 times, and the action accuracy is 100%. Pass the working medium with rated pressure, let it stand for 72 hours, and then test according to the action requirements. 5.26 Life test
5.26.1 Products of the same series or with basically the same structure and materials may be tested in one specification or one product. 5.26.2 It is allowed to use a local test of the weak link of the product instead of the whole product test, but the test state must be the same as the actual working condition. Test according to the requirements and methods of the product's respective action test, record the number of actions specified by the product, and replace the easily damaged parts during the test for no more than 3 times, and the main parts shall not be damaged. 5.26.3
Electrical components are operated with rated voltage, and hydraulic components and pneumatic components are operated with rated pressure. 5.26.5The number of actions for life test of various components is stipulated in Table 3. Table 3 The number of actions for life test of various components Component name
Hydraulic solenoid valve
Hydrogen pressure reducing regulator
Pressure balance valve
Pressure regulating valve
Hydrogen solenoid valve
Note: Up, down; reciprocating, open, close, rise, fall counts as one time. 5.27 Temperature rise test
Action times
20000 times
10000 times
15000 times
15000 times
10000 times
Electrical components, used in long-term working system, intermittent working line diagram, according to GB998 standard. 5.28 Damp heat test and moisture resistance test
Electrical products and parts are subjected to damp heat test according to GB834 and JB4159, moisture resistance test according to GB998, and products with relative humidity of 90% are tested for 6 cycles.
5.-29 Explosion-proof test
Electrical products and parts with explosion-proof requirements are subjected to GB3836 standard. 5.30 Test instruments
The accuracy of electrical instruments shall not be lower than Class 0.5;
The accuracy of pressure measuring instruments shall not be lower than Class 1.0; other instruments shall comply with relevant regulations.
Inspection items and completeness of supply
Test inspection items
6.1.1 Product factory inspection test items:
Appearance inspection;
Insulation resistance test of electrical components;
Withstand voltage test of electrical components;
JB/T6517-92
Water pressure strength and material sealing test of pressure-bearing parts of hydraulic (gas) components: hydraulic (gas) component sealing performance test;
Internal leakage test of hydraulic components,
Component and device action test;
General assembly shall be subject to: sealing performance test, supplementary discharge working medium action test, pump load operation test and pressure and flow measurement. Product type test items:
All contents of factory inspection test;
Reliability test of solenoid valve components; Rated pressure of solenoid valve with oil (gas, water) pressure, action test and life test after 72 hours of static;
Temperature rise test;
Wet heat test and moisture resistance test
Field test items:
According to the site conditions and needs, it can be carried out on the unit or the corresponding simulation test device. The field test allows the necessary adjustment of the action value of the component under the condition of meeting the technical conditions. All or part of the factory test items;
After the host and secondary circuit are fully qualified, the following tests can be carried out: b.
Hydrogen oil and water control system manual, automatic start, operation and shutdown; ion exchange system test;
Pump switching test;
Oil and gas pressure differential valve and pressure balance valve linkage test; oil seal box, water tank replenishment and drainage liquid linkage test; Supply complete set
Consumable parts and spare parts
Technical data
Hydrogen, oil, water control system diagram, electrical system diagram; General assembly drawing and installation drawing;
Product principle, structure, installation, adjustment and maintenance instructions; Delivery list;
Product factory qualification certificate;
Packing list.
Warranty period
From the date of shipment, under normal storage and transportation conditions, the product will not be corroded or the accuracy will be reduced due to poor packaging within one year. b.
Within two years from the date of shipment, and within one year after the unit is put into operation (whichever comes first). If the product is damaged or cannot work properly due to poor manufacturing, the manufacturer shall replace or repair it for the user free of charge. The overhaul interval shall not be less than three years.
7 Marking, packaging, transportation and storage
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Famous brand, each product shall be fixed with a product nameplate in an appropriate position, and its main contents include: a.
Product model, specification and name;
Manufacturer name;
Product manufacturing number;
Product manufacturing date;
Standard number:
Famous brand (high quality, silver medal, gold medal) product logo. The following items should be marked on the outer wall of the packing box:
Receiving unit and address:
Shipping unit and address:
Product model, name and factory number;
Net weight, gross weight, center of gravity of the box and sling position, as well as the overall dimensions of the box; mark "handle with care", "moisture-proof", "shockproof" and "do not invert" words and marks. 7.2 Packaging
The following preparations must be done before packaging: Take temporary anti-rust measures on the external processed surface of the product; Remove fragile and shock-sensitive parts such as instruments and parts with special requirements and pack them separately according to regulations; There should be anti-rust measures in the internal cavity of the product, and no residual debris, water and sand after processing should remain: d.
The movable parts in the product must be fixed to the body; the external connection pipe joints of hydraulic component products should be sealed; Packaging requirements
The products in the box are not allowed to be placed randomly, stacked or upside down, and should be firmly fixed, and should not be squeezed or hit against each other, to ensure that the normal vibration, bumping, shaking, emergency leftovers, etc. of the transportation vehicle will not affect its stability and integrity. 6
The flanged exposed openings with a diameter of more than 50 should be replaced with flanges and sealing gaskets, and the other exposed openings should be blocked with heads. The technical data and spare parts supplied with the random assembly should be fixed in a conspicuous position after wrapping. The packaging should be moisture-proof and dust-proof, and ensure the safety of transportation and loading and unloading. c.
7.3 Transportation
7.3.1 Transportation and loading and unloading should be carried out in accordance with the markings and words on the outside of the packaging box. 7.3.2 Parts that are not packaged and transported in boxes should not be placed in places directly exposed to rain and snow during transportation. 7.4 Storage
After the user receives the product, before installation, the product should be stored in a room with a temperature of 540℃, a relative humidity of no more than 90%, no corrosive gas, and no dust, rain or snow. A1
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Appendix A
Conversion of insulation resistance at different temperatures and relative humidity (supplement)
The specified values of insulation resistance of electrical components refer to the following conditions: ambient temperature is 20±5℃;
b. Ambient relative humidity is 50%~70%.
If the actual ambient temperature and relative humidity during measurement are not within the above values, the calculation can be performed according to formula (A1): A2
R=Ks·K·Rs
Wherein: R—Insulation resistance value converted to ambient relative humidity of 50%70% and ambient temperature of 20±5°C (M0)—Insulation resistance value measured under actual ambient relative humidity and temperature (M0) Rs-
Ks—Coefficient related to relative humidity (see Table A1). KTA
Coefficient related to ambient temperature (see Table A2). Table A1
Relative humidity of the environment during measurement
Ambient temperature during measurement
70%~80%
Condensation is based on the average value of the past 24 hours
80%~92%
Humidity has been there for 24 hours
92%~98%
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Appendix B
Approximate conversion of internal leakage of oil at different oil temperatures or oil qualities (supplement)
The specified values of internal leakage of hydraulic components refer to the following conditions: B1
HU-30 turbine oil
Oil temperature is 20℃
If the test oil is HU-20 or HU-30 turbine oil and the oil temperature is not 20℃, the conversion method (B1) can be used. Calculation: B2
Q=Kra·Qs/Ku
Wherein: Qn—-internal leakage oil volume converted to specified oil quality and oil temperature of 20℃cm/min#Km
Coefficient related to temperature (see Table B1). If the oil temperature is between the two temperatures in Table B1 during measurement, it can be calculated by linear interpolation from the Krs values of two similar temperatures;
internal leakage oil volume measured under actual oil temperature and oil quality: cm*/min; Qs—2
-coefficient related to oil quality, if it is HU-30 turbine oil, Ku=1, if it is HU-20 turbine oil, see Table B1, Ku-
if the oil temperature is between the two temperatures in Table B1 during measurement, it can be calculated by linear interpolation from the Ku values of two similar temperatures. Table B1
Oil temperature during measurement
Additional remarks:
This standard was proposed by the National Rotating Electrical Machine Standardization Committee. This standard is under the jurisdiction of Harbin Large Electrical Machine Research Institute. The responsible drafting unit of this standard is Harbin Electrical Machine Factory. The main drafter of this standard is Sun Wenxiu., indoors without corrosive gases and not attacked by dust, rain or snow. A1
JB/T6517-92
Appendix A
Conversion of insulation resistance at different temperatures and relative humidity (supplement)
The specified values of insulation resistance of electrical components refer to the following conditions: ambient temperature is 20±5℃;
b. Ambient relative humidity is 50%~70%.
If the ambient temperature and relative humidity during actual measurement are not within the above values, it can be calculated according to formula (A1), A2
R=Ks·K·Rs
Where: R—Insulation resistance value converted to ambient relative humidity of 50%70% and ambient temperature of 20±5℃ (M0)—Insulation resistance value measured at actual ambient relative humidity and temperature (MO) Rs-
Ks—Coefficient related to relative humidity, (see Table A1). KTA
Coefficient related to ambient temperature (see Table A2). Table A1
Relative humidity of the environment during measurement
Ambient temperature during measurement
70%~80%
Condensation is based on the average value of the past 24 hours
80%~92%
Humidity has been there for 24 hours
92%~98%
JB/T6517-92
Appendix B
Approximate conversion of internal leakage of oil at different oil temperatures or oil qualities (supplement)
The specified values of internal leakage of hydraulic components refer to the following conditions: B1
HU-30 turbine oil
Oil temperature is 20℃
If the test oil is HU-20 or HU-30 turbine oil and the oil temperature is not 20℃, the conversion method (B1) can be used. Calculation: B2
Q=Kra·Qs/Ku
Wherein: Qn—-internal leakage oil volume converted to specified oil quality and oil temperature of 20℃cm/min#Km
Coefficient related to temperature (see Table B1). If the oil temperature during measurement is between the two temperatures in Table B1, it can be obtained by linear interpolation from the Krs values of two similar temperatures;
internal leakage oil volume measured under actual oil temperature and oil quality: cm*/min; Qs—2
-coefficient related to oil quality, if it is HU-30 turbine oil, Ku=1, if it is HU-20 turbine oil, see Table B1, Ku-
if the oil temperature during measurement is between the two temperatures in Table B1, it can be obtained by linear interpolation from the Ku values of two similar temperatures. Table B1
Oil temperature during measurement
Additional remarks:
This standard was proposed by the National Rotating Electrical Machine Standardization Committee. This standard is under the jurisdiction of Harbin Large Electrical Machine Research Institute. The responsible drafting unit of this standard is Harbin Electrical Machine Factory. The main drafter of this standard is Sun Wenxiu., indoors without corrosive gases and not attacked by dust, rain or snow. A1
JB/T6517-92
Appendix A
Conversion of insulation resistance at different temperatures and relative humidity (supplement)
The specified values of insulation resistance of electrical components refer to the following conditions: ambient temperature is 20±5℃;
b. Ambient relative humidity is 50%~70%.
If the ambient temperature and relative humidity during actual measurement are not within the above values, it can be calculated according to formula (A1), A2
R=Ks·K·Rs
Where: R—Insulation resistance value converted to ambient relative humidity of 50%70% and ambient temperature of 20±5℃ (M0)—Insulation resistance value measured at actual ambient relative humidity and temperature (MO) Rs-
Ks—Coefficient related to relative humidity, (see Table A1). KTA
Coefficient related to ambient temperature (see Table A2). Table A1
Relative humidity of the environment during measurement
Ambient temperature during measurement
70%~80%
Condensation is based on the average value of the past 24 hours
80%~92%
Humidity has been there for 24 hours
92%~98%
JB/T6517-92
Appendix B
Approximate conversion of internal leakage of oil at different oil temperatures or oil qualities (supplement)
The specified values of internal leakage of hydraulic components refer to the following conditions: B1
HU-30 turbine oil
Oil temperature is 20℃
If the test oil is HU-20 or HU-30 turbine oil and the oil temperature is not 20℃, the conversion method (B1) can be used. Calculation: B2
Q=Kra·Qs/Ku
Wherein: Qn—-internal leakage oil volume converted to specified oil quality and oil temperature of 20℃cm/min#Km
Coefficient related to temperature (see Table B1). If the oil temperature during measurement is between the two temperatures in Table B1, it can be obtained by linear interpolation from the Krs values of two similar temperatures;
internal leakage oil volume measured under actual oil temperature and oil quality: cm*/min; Qs—2
-coefficient related to oil quality, if it is HU-30 turbine oil, Ku=1, if it is HU-20 turbine oil, see Table B1, Ku-
if the oil temperature during measurement is between the two temperatures in Table B1, it can be obtained by linear interpolation from the Ku values of two similar temperatures. Table B1
Oil temperature during measurement
Additional remarks:
This standard was proposed by the National Rotating Electrical Machine Standardization Committee. This standard is under the jurisdiction of Harbin Large Electrical Machine Research Institute. The responsible drafting unit of this standard is Harbin Electrical Machine Factory. The main drafter of this standard is Sun Wenxiu.
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