Some standard content:
IC.S 71.100.20
Machinery Industry Standard of the People's Republic of China
JE/T9074-1999
Pure nitrogen equipment
Pure nitrogen plants
Published on July 12, 1999
State Bureau of Machinery Industry
Implementation on January 1, 2000
JE9074-1999
This standard is a revision of 2BJ76008.1—88 Technical conditions for pure oxygen equipment and 2BJ76008.2—88 Performance test method for pure hydrogen equipment.
Compared with ZBJ76008.1-88 and ZB6008.2-88, this standard has some changes in the following main contents: This standard further reflects the importance of technical cooperation (or technical agreement) in product delivery; 300m/h, 600mb, B00mh grade pure nitrogen equipment has been added to the output series of pure chlorine equipment; Jiangcheng design and installation requirements related to product quality rather than supplier have been added; Two appendices in 2BJ76008.1-88 have been removed, and GR/7820GD/T9007.JB/T7263.JB/18058 has been used. This standard replaces 2B176008.·88 and 2BJ76008.2-88 from the date of implementation. This standard is proposed and managed by the Technical Examination Committee for Standardization of Gas Separation and Liquefaction Equipment. The originator of this standard: Kaifeng Air Separation Group Co., Ltd. The main drafters of this standard are Fei Jincai and Hong Baoling. This standard was first issued in July 1989. 1 Scope
Machinery Industry Standard of the People's Republic of China
Pure Nitrogen Equipment
Purs Nitrogen Plants
JB/9074-1999
Generation 888
ZBJ76 008.288
This standard specifies the terminology, product classification and model, technical requirements, performance test methods and inspection methods, collection rules, marking, packaging, transportation and storage of nitrogen purification equipment. This standard applies to single-tower process with oxygen content in nitrogen less than or equal to 10×10-6 (volume content), and pure nitrogen equipment that separates air by the minimum limit method to produce nitrogen.
Marked as not applicable to pure nitrogen equipment for state wind products. Note: [In this standard, the gas content is in standard state, i.e., 0℃, [01.325P (absolute pressure)], and the unit is n. 2 In this standard, the gas content is in standard state, i.e., 0℃, [01.325P (absolute pressure)], and the unit is n. 2 The gas content in this standard that is not specified is the pressure plus (absolute pressure) as the standard pressure. 2
Cited standards
The following standards contain clauses, which constitute the clauses of this standard through reference in this standard. All the clauses are valid at the time of publication of this standard. All standards are subject to revision. The parties using this standard shall discuss the possibility of using the latest versions of the following standards: GR 150.--1998
GR151—1989
GB.T 2621—1993
GB:T 28881991
GB 4208—1993
GB/T 5831 — 1986 | | tt | 10606.6—1989
GH/[JU6U7158
GB/TJ3306J991
GR/T13384:1992
GB116—1987
Steel pressure vessels
Shell and tube heat exchanger
Flow measurement Throttling device Orifice plate, nozzle and pipe measurement Single full of liquid flow to fan and blower Noise dynamometer
External light protection level (IP code)
Determination of trace oxygen in gas Colorimetric method
Fine pore spherical silica gel
|Porous spherical silica gel
Terms of air separation equipment Basic terms
Technical certification of air separation equipment Unit equipment
Technical evaluation of air separation equipment Turbine
Terms of air separation equipment Cryogenic pump
Product model compilation method of air separation equipment
General technical conditions for packaging of electromechanical products
Effective design and distribution specifications
Noise control improvement regulations for industrial enterprises
Approved by the State Machinery Industry Bureau on July 12, 1999 and implemented on January 1, 2000
FB/T25361980|| tt||JB/T6443.1992
JBT6896
JB/T7263
JB/T80581996
JB129—1996
JB!301996
3Technical adjustment
JBT974-1999
Pressure vessel oil spill, packaging, transportation
High pressure compressor
Surface filtration degree of air separation equipment
Technical conditions for acceptance of 3 molecular hoop drums for air separation equipment Technical conditions for acceptance of activated alumina for air separation equipment 1. Standard for the installation and acceptance of refrigeration equipment and air separation equipment. The terminology of this standard is in accordance with GB/T10606.1, GB/T10606.2, GB.T10606.5 and GB/T10606.6. 4. Product classification and model
4.1 The products are divided into one category according to the process:
a) Switching heat exchanger low pressure washing process [referred to as raw cotton] b) Molecular sieve pre-low pressure washing process (referred to as process II) 4.2 Product classification GB10607 provisions
5. Technical requirements
5.1 Engineering conditions
5. 1.1 Raw air Table 1.
Project name
Muscle reduction institute
5. L. 2 Environmental conditions are shown in Table 2.
Item name
Sea level
Relative temperature
5.1.3 Cold sealing water is shown in Table 3.
Item name
Imported normal pressure
Imported minimum pressure
Disk pressure
National Water Supply
General Trade Degree
Acidity
Scale test
JR.T9074-1999
The pressure and saturation temperature of the steam should be specified in the contract. The source of the air for the dust-free instrument air is shown in Table 4.
Item name
Source pressure
Maximum pressure before the instrument: Annual average value and 24 maximum pressure of the strong supply. 5.1.6
Wind speed: The user shall provide the maximum wind speed at 10m above the ground. 5.1.7
5.1. No: The user shall provide the maximum thickness or maximum recommended weight required by the local area. 3.1 The vibration intensity shall be within the same specified price and current specification. (1HJ)26- (,(KX43
The power supply shall be cross-sectional and shall comply with relevant standards. The power supply voltage, phase and power factor are shown in Table 5. Table 5
60K0 or 10000
5. 1.7 If the project conditions do not meet the above requirements or additional items are required, such as groundwater level, ground pressure, refrigerant, etc., the user shall propose them and stipulate them in the contract after negotiation between the two parties. 5.2 Product performance requirements
5. 2.1 Basic technical performance parameters are in accordance with the provisions of Table 6. 3
Month Name
Nitrogen Production
Gas Production
720【750]
150r1D
285/15
13501150
1850/150
2750256
5550450
J8/T9074-1999
Chinese Teaching
Gas Pressure
We_39
Unit Energy Consumption of Chlorine Production
kw - hm'Ne
year ()
1 The installation solidification refers to the interval between two temperature changes: the selection rate is less than %, and the non-equipment original four-year benefit is calculated according to the service life system. 2 The performance data in the table are based on the contract performance conditions. 3【, and the content of the text see the production classification.
4 This standard is mainly based on the production of air products,
5 The unit system emergency energy consumption is sufficient to deliver air urine design value as the basis. 572 Pure nitrogen equipment is available in 100, 15h, 300, 60, 720, 800, 1000, 150, 2000, 3000, 4000, 5000, 6000 series according to the gas production (m*minimum). The supplier and the supplier shall sign a technical contract (or technical agreement) according to the pure nitrogen equipment product plan or the process conditions, performance test methods, etc. The supplier shall ensure that the pure ammonia equipment products meet the requirements of the technical contract (or technical agreement).||tt ||5.2.3 The unit energy consumption of pure nitrogen equipment shall not exceed 104% of the value specified in the contract. If the design parameters are different, it shall not exceed 104% of the value specified in the contract.
5.2.4 The start-up time of pure oxygen equipment is from the start-up of the compressor to the time when the nitrogen purity reaches the time specified in the contract, which generally does not exceed 36 hours (cut).
5.2.5 The heating and thawing time of pure nitrogen equipment is generally 26 hours (switching). 5.2.6 The injection rate is not less than 95%
5. 3 Other technical requirements
5.3.1 The supporting pressure data shall comply with GB/T150, GB151, GB/T20 ... Condenser, heat generator, etc.) trenches should be grounded and complete equipment should be equipped with shelter facilities.
5.3.4 Fine-pore spherical silica gel should comply with the provisions of 6B/782: the pore spherical silica gel composition should comply with the provisions of GB/T900?, the sieve should comply with the provisions of B17263: the active aluminum composition should comply with the provisions of B/[858. 5.3.5 The process design and installation of pure nitrogen equipment should comply with the product design requirements and GB/T16, GBJ87.JBJ29, JBJ30 and other standards and relevant regulations.
5.3.6 The surface smoothness of the nitrogen equipment should comply with BT6896 or the safety drawing. 5.3.7 The sound and vibration of each supporting unit of the nitrogen equipment shall be connected to the provisions of each unit or in accordance with the contract. 5.3. The supplier shall provide spare parts for one year (or as specified in the contract). 5.3.9 The operators, mechanics and instrument operators of pure ammonia equipment must be familiar with the structure and operation of the machines and equipment and must pass the training and examination before they can start work.
5.3. The operation of pure nitrogen equipment shall be in accordance with the relevant provisions of the user manual provided by the manufacturer. For the acetylene in the air of the condenser evaporator, the content of carbon dioxide compounds: once every research 5.3.11 Users should formulate safe operation procedures according to the requirements of the production process, and implement regular inspection and maintenance and patrol systems. 5.3.12 When the equipment fails, it should be reported and handled in time; for serious failures, feedback should be given to the manufacturer. See: 5.313! User feedback should be handled in time; users should be visited regularly to understand the product usage, so as to improve the design and product quality.
6 Performance test and inspection method
Inspection is divided into factory inspection and/or negative wire performance test, 6. 1 Inspection
6.1.1 The matching pressure vessels must be inspected in accordance with the provisions of the "Pressure Vessel Safety Technical Supervision Procedure" and hold the relevant quality certification documents.
6.1.1 Each unit must pass the test run in accordance with the product standards or technical documents of the corresponding unit (if it is subject to conditions, it must be specified in the contract during the phenomenon inspection) and issue a certificate of qualification. 6.1.3 All purchased and external accessories, such as motors, compressors, electronic control equipment, systems, valves, instruments and other equipment, must have a production and qualification certificate.
6.1.4 Silica gel, molecular sieve, active chemical and welding wire components must pass the re-inspection before entering the factory. 6.1 On-site performance test of complete air separation equipment 6.1.1 Conditions for performance test of complete air separation equipment: 6.2.1.1 The performance test of complete air separation equipment must be carried out after the conditions are stable. The continuous measurement time is 48 hours or as specified in the contract, one measurement per hour, and the average value is taken.
6.2.1.2 During the performance test period, the measured data will not be corrected within the following fluctuation range: pressure and temperature are within 95%~105%, difference is within 98%~102%, rotation speed is within 97%~103%, and frequency is within 99%-101%. 6.2.1.3 Due to observation conditions, when the test conditions deviate from the standard or deviate from the designed conditions, the test results should be converted. 5
6.2.2 The requirements for measuring instruments and corresponding instruments are shown in Table 7. The measuring items are only mentioned in the book
glass spot meter
resistance thermometer
pressure!
Electric calendar difference meter
Current difference positive and negative matching
Electric system meter
Mutual special meter
Current insect marriage device
Intercept analysis control
Grade receiver
JB/T9074-1999
+0.5%;, graduation value 0.5%
After calibration and compensation【+1.5+0.00241.5condensation
Full scale value *1.5%, minimum scale value 140, select the inner diameter = hmm vacuum pipe 10mn, iP
diameter = 0.5% shape difference meter test
minimum scale 10-0
small scale IA(4)
Note: When the instrument and table listed in the table cannot be used due to the limitation of exchangeability, the instrument provided by the manufacturer can be used. The precision should be as shown in the standard. 6.2.3 Determination of product ammonia flow
6.3.3, 1 The determination of product ammonia flow should be carried out simultaneously with the determination of pure ammonia. Before the measurement, all pipe joints should be checked for any leakage or blockage. 6.1.3.2 The installation and use of the flow measurement device shall comply with the provisions of GA/t2624. The orifice plate of the throttling device adopts a standard orifice plate and is installed on the nitrogen main pipe of the outlet tower.
6.2.3.3 The flow rate of the product side gas can be corrected according to formula (1). F=F
Where: P, PT. Gas pressure before the orifice plate under the working state and design conditions, MP (absolute); T, T—T. Gas temperature before the orifice plate under the working state and design conditions, K: Flow reading of the second instrument during the condensation test, m: Corrected gas flow, mh.
Note: If the flow rate is positive by the absolute value of the instrument (temperature, pressure), then the formula (1) is correct. (1)
6.23.4 The measurement of the liquid state of the product adopts the liquid volume per hour (or the liquid mass per hour by weighing method) to be converted into the gas volume under standard conditions. 6.2.4 Determination of air flow rate
6.2.4.1 The air flow rate of the inlet tower shall be measured on the air pipe after the air cooling tower or molecular sieve adsorber. 6.1.4.1 The partial air flow rate shall be measured in accordance with the provisions of G2624. 6.2.4.3 The air flow rate shall be corrected according to formula (2). 6
JB/T9074--1990
In this section: the actual value and design value of air density, km:pe
under working conditions and design conditions, (the temperature of the gas before the orifice plate under working conditions and design conditions, K; Y, the actual flow rate after the grid is corrected and the instrument reading, and h.6.2.5 Determination of product nitrogen purity
.2.5.! The sampling point of the nitrogen analysis system is on the nitrogen main channel at the source tower, 23
(.2.5.2 Analysis of oxygen content in the gas: use an analytical instrument calibrated with standard gas to measure or control according to GB15831 regulations. In case of dispute: use GRT5831 or the specified measurement method. 6.2.6 Determination of power consumption
The power consumption is calculated based on the motor input power and motor efficiency. 6.2.6.1 The motor input power is calculated according to formula (3). N.-e c05/1000
Wherein: W-power at the motor terminals, kW; input current, A;
(voltage, V;
one-sided factor,
6. 2. 6. 2 The compressed power is calculated according to formula (4), Wh=Nne
Wherein:-
air compressor power, kW:
motor efficiency, % (provided by the motor manufacturer) 62.7Unit nitrogen production power consumption is calculated according to formula (S), ZN
Wherein: Nwa—unit nitrogen production power consumption, kW·bm; ZN--total power of the complete set of equipment, kW
E-total nitrogen production per hour, m. 6.2.7.1Total power of the complete set of equipment is calculated according to formula (4) Formula (6) calculates EN = N + Nr.
Where: EN or total power consumption of the equipment, kw, h/mW - no-load power consumption. kw;
- auxiliary power consumption, kw.
6.2.7.2 Auxiliary power consumption (generally excluding the pressure power consumption of nitrogen products and the cabin consumption for lighting), the calculation method is determined according to the reduced range form, respectively calculated according to formula (7) or formula (8),
) process "calculated according to formula (),
Nr =Ni+N: +N+N.+N, - N.
Wherein: N
Auxiliary power consumption, kw;
wMain power consumption of the honey machine, kw;
JB/T9074-1999
N-Power consumption of the exhaust fan of the honey machine, kw; W-Power consumption of the expansion machine oil pump, kW;
M-Power consumption of the water supply of the air cooling tower, kW:
wW-Power consumption of the water supply of the water tower, kw:
N.-Power consumption of the exhaust fan of the water cooling tower, kw.
b) Process I is calculated according to formula [8].
Wr =W, -WI+ N; + Na + Ns +Na+ W + NgWherein: M, N,, N, N,.Ng see formula (7); W is cooling power, kW;
molecular sieve regeneration power consumption, when steam heating is used for regeneration, the difference between the inlet and outlet steam flames is calculated, and the total amount of heat curing is converted into power consumption, kW.
Note: The average end-to-end energy can be quickly calculated, including liquid oxygen, including the average gas production, EI'w2, formula (9), EI'w2 = +3
Where: E
Total amount of ammonia:
Q—gas production;
Liquid nitrogen production converted to standard gas chlorine plate, if the nitrogen is gasified and added to the pipeline network, it is not calculated separately. 6.2. Noise measurement
6.2.R.1 The measurement method of turbine compressor noise shall refer to the provisions of GBT2888. 6.2.8.2 The measurement method of venting silencer noise can refer to the provisions of GBT2888. 6.2.8.3 The measured noise includes tax noise,
6.2.9 Vibration measurement
5. 2. 9, 1 The shaft vibration value of turbine compressor is calculated according to formula (10). Or follow IB/T 6443, A= 25.4
Where: 4
- residual amplitude, μ;
- maximum continuous speed, t/min,
+ 25.4 × 0.25
.2.9.2 The shaft vibration of the compressor is measured at the radial bearing, and the instrument input rate is calculated by
6.2.10.1 The instrument input rate is calculated by formula (11). 6.7.2 The total number of instruments is the sum of the number of measuring points on the dial in the control room and (or) controlled by the computer, the number of local instruments and the number of meters used in the analysis room, excluding instruments that cannot be put into operation due to user reasons: 1.1 The unit of pure nitrogen equipment should generally be qualified in the manufacturing test. When it is not possible to test in the manufacturer due to conditions, it is allowed to be tested on site at the user's site before the performance test of the complete set of equipment. The unit of each unit must be qualified before it is allowed to be used for the performance test of the complete equipment.
7.2 The complete set of pure commercial equipment shall be tested for 4 consecutive times or in accordance with the regulations. All indicators shall comply with the requirements of this standard or the same as the date of marking, packaging, transportation and storage.
8.1 Pure oxygen equipment shall be equipped with a label in a conspicuous position. Its size and requirements shall comply with the provisions of GB 133. 8.2 The label content of pure nitrogen equipment shall at least include: a) product model; h) product trademark:
c) product name:
d) main performance:
e) export date:
manufacturer name
3 The factory technical documents of pure nitrogen equipment (including the complete set) shall include: ) factory certification:
b) instruction manual:
) installation technical requirements:
d) equipment quality certificate and engineering drawing:
e) product trademark:
c) product name:
d) main performance:
e) export date:
manufacturer ...e) product trademark:
c) product name:
d) main performance:
e) export date:
manufacturer name
e) product trademark:
d) product name:
e) product name:
e) product name ) with the technical documents and drawings list (according to the list specified in the contract: assembly list;
Scope of delivery
8.4 Packaging and transportation of pure oxygen equipment According to GB/T13384 and 18/T2536, the packaging and transportation shall be carried out in units of sets of equipment and packed in boxes.
B.5 Before the equipment is installed. All equipment shall be installed in a place with unobstructed drainage or shelter, 300mm above the ground, and kept in a safe place. It shall comply with the relevant provisions of the single machine instructions. When the oil sealing period exceeds the prescribed period, it shall be re-oiled. 6.6 Pure equipment shall be put into operation within 18 months after arrival or 24 months after leaving the factory (18 months after the equipment is assembled as a whole and leaves the factory). During this period, all parts except wearing parts shall be repaired or replaced free of charge if the manufacturing quality problems affect the normal operation.A= 25.4
Wherein: 4
- amplitude, μ;
- maximum continuous speed, t/min,
+25.4× 0.25
.2.9.2 The shaft vibration of the compressor is measured at the radial bearing, and the instrument input rate is calculated by
6.2.10.1 The instrument input rate is calculated by formula (11). 6.7.2 The total number of instruments is the sum of the number of measuring points on the dial of the control room and (or) controlled by the computer, the number of local instruments and the number of meters used in the analysis room, excluding instruments that cannot be put into operation due to user reasons: Collection rules. 1. The parts of each unit of pure nitrogen equipment should generally pass the manufacturing test. When the test cannot be carried out at the manufacturer due to conditions, it is allowed to be tested on site at the user's site before the performance test of the complete set of equipment. The parts of each unit must be inspected and qualified before they are allowed to be used for the performance test of the complete equipment.
7.2 The complete set of pure commercial equipment shall be tested in accordance with the regulations of this chapter or the relevant regulations. All indicators shall comply with the requirements of this chapter or the relevant regulations on marking, packaging, transportation and storage.
8.1 Pure oxygen equipment shall be equipped with a label in a conspicuous position. Its size and requirements shall comply with the provisions of GB 133. 8.2 The label content of pure nitrogen equipment shall at least include: a) Product model; h) Product trademark:
c) Product name:
d) Main performance:
e) Export date:
Manufacturer name
3 The factory technical documents of pure nitrogen equipment (including the complete set) shall include: ) Factory certification:
b) Instructions for use:
) Installation technical requirements:
d) Equipment quality certificate and engineering drawing:
e) Product logo:
) with the technical documents and drawings list (according to the list specified in the contract: assembly list;
Scope of delivery
8.4 Packaging and transportation of pure oxygen equipment According to GB/T13384 and 18/T2536, the packaging and transportation shall be carried out in units of sets of equipment and packed in boxes.
B.5 Before the equipment is installed. All equipment shall be installed in a place with unobstructed drainage or shelter, 300mm above the ground, and kept in a safe place. It shall comply with the relevant provisions of the single machine instructions. When the oil sealing period exceeds the prescribed period, it shall be re-oiled. 6.6 Pure equipment shall be put into operation within 18 months after arrival or 24 months after leaving the factory (18 months after leaving the factory for equipment assembled as a whole). During this period, all parts except wearing parts shall be repaired or replaced free of charge if the manufacturing quality problems affect the normal operation.A= 25.4
Wherein: 4
- amplitude, μ;
- maximum continuous speed, t/min,
+25.4× 0.25
.2.9.2 The shaft vibration of the compressor is measured at the radial bearing, and the instrument input rate is calculated by
6.2.10.1 The instrument input rate is calculated by formula (11). 6.7.2 The total number of instruments is the sum of the number of measuring points on the dial of the control room and (or) controlled by the computer, the number of local instruments and the number of meters used in the analysis room, excluding instruments that cannot be put into operation due to user reasons: Collection rules. 1. The parts of each unit of pure nitrogen equipment should generally pass the manufacturing test. When the test cannot be carried out at the manufacturer due to conditions, it is allowed to be tested on site at the user's site before the performance test of the complete set of equipment. The parts of each unit must be inspected and qualified before they are allowed to be used for the performance test of the complete equipment.
7.2 The complete set of pure commercial equipment shall be tested in accordance with the regulations of this chapter or the relevant regulations. All indicators shall comply with the requirements of this chapter or the relevant regulations on marking, packaging, transportation and storage.
8.1 Pure oxygen equipment shall be equipped with a label in a conspicuous position. Its size and requirements shall comply with the provisions of GB 133. 8.2 The label content of pure nitrogen equipment shall at least include: a) Product model; h) Product trademark:
c) Product name:
d) Main performance:
e) Export date:
Manufacturer name
3 The factory technical documents of pure nitrogen equipment (including the complete set) shall include: ) Factory certification:
b) Instructions for use:
) Installation technical requirements:
d) Equipment quality certificate and engineering drawing:
e) Product logo:
) with the technical documents and drawings list (according to the list specified in the contract: assembly list;www.bzxz.net
Scope of delivery
8.4 Packaging and transportation of pure oxygen equipment According to GB/T13384 and 18/T2536, the packaging and transportation shall be carried out in units of sets of equipment and packed in boxes.
B.5 Before the equipment is installed. All equipment shall be installed in a place with unobstructed drainage or shelter, 300mm above the ground, and kept in a safe place. It shall comply with the relevant provisions of the single machine instructions. When the oil sealing period exceeds the prescribed period, it shall be re-oiled. 6.6 Pure equipment shall be put into operation within 18 months after arrival or 24 months after leaving the factory (18 months after leaving the factory for equipment assembled as a whole). During this period, all parts except wearing parts shall be repaired or replaced free of charge if the manufacturing quality problems affect the normal operation.
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