HG/T 2099-1991 Specification for testing mechanical seals for kettles HG/T2099-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG /T 2099 -- 91
Test Specification for Mechanical Seals for Kettles
Issued on August 19, 1991
Ministry of Chemical Industry of the People's Republic of China
Implementation on January 1, 1992
Chemical Industry Standard of the People's Republic of China
Test Specification for Mechanical Seals for Kettles
Subject Content and Scope of Application
This standard specifies the basic principles and test methods for routine performance tests of mechanical seals for kettles. HG/T2099-91
This standard applies to the stirring shaft of carbon steel and stainless steel reaction scoops and similar vertical rotating shaft mechanical seals. Its working parameters are: the medium pressure in the sealing chamber is 1.33×10*5 (absolute pressure) ~ 2.5.MPa (gauge pressure); the medium temperature in the sealing chamber is α~80℃; the outer diameter of the stirring shaft (or sleeve) is 30~130mm; the rotation speed is not more than 500／min; the medium is various fluids except oxidizing acids and high-concentration alkalis.
2 Reference standards www.bzxz.net
HG2269 Technical conditions for mechanical seals for reaction scoops
3 Test classification
31 Type test: A test conducted to determine whether the newly designed mechanical seal has the specified performance. Each specification should be subject to type test.
3.2 Factory test: Before the mechanical seal products that have passed the type test are shipped out of the factory, at least one set of each batch of products of the same specification should be selected for factory performance test. Special needs shall be agreed upon separately. 4 Test content
4.1 Type test content includes static pressure test and running test. Measure the leakage disk, stop the machine after reaching the specified time to measure the wear of the seal ring end face,
4.2 Factory test content includes static pressure test and running test. 5 Test conditions
5.1 Isolation fluid of salt mechanical seal test system: double-end mechanical seal uses air (or nitrogen); single-end mechanical seal uses water or No. 20 engine oil (as sealing liquid or lubricating liquid) 5.2 The pressure holding time of static pressure test is not less than 10 minutes, and the leakage does not exceed the specified value. 5.3 Only products that pass the static pressure test can be tested for running. 54 Pressure: The static pressure test pressure is 1.25 times the product design pressure, and the running test pressure is the maximum use pressure of the product. When the use pressure is lower than 0.1MPa (absolute pressure), the static pressure and running test pressures are both the minimum pressure of the product. 5.5 Speed: According to the design speed of the product
5.6 The temperature of the fluid is room temperature. If there are special requirements, they will be agreed upon separately. 3.7 Test time
5.7.1 The type test time is 100 hours of continuous operation, with measurement and recording every 1 hour in the first 24 hours, and thereafter, recording once every 2 hours.
5.7.2 The factory operation test is 6 hours of continuous operation, with measurement and recording every 1 hour. Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 1991 and implemented on January 1, 1992
HG/T 2099-91
5.8: After the static pressure test and operation test, the relevant data shall be filled in the test report, see Appendix A [reference). 6 Test device
The test device shall be designed in accordance with the following provisions. The schematic diagram is shown in Appendix B (reference). 6.1. The device shall have an exhaust port.
6.2 The device shall have pressure stabilization measures. When conducting static pressure and operation tests, the limit deviation of the pressure value shall be ±5% of the specified value. The pressure gauge or other pressure sensing element shall be directly connected to the sealed chamber. 6.3 The speed tolerance of the test device shaft is ±5% of the specified value. 64. Appropriate equipment should be available to collect and measure the fluid leaking through the mechanical seal. 6.5 The installation location and installation process of the mechanical seal shall comply with the provisions of HG 2269. 6.6 In addition to the seal cavity and system accessories being able to withstand the fluid pressure, the test bench should have sufficient rigidity and stability. 6.7 The optical sensor for measuring the temperature of the isolation fluid should be properly installed at the appropriate position of the seal cavity. Test Instruments
7.1 The instruments used should be calibrated by the metrology department and have a valid certificate. 7. 2 The instruments used in the test should comply with the provisions of the following table: Measurement content
Measurement
Instruments
Pointer pressure gauge
Other medical measuring instruments
Appropriate temperature measuring instruments
Customized tachometer, meter or manual counter
Special meter, ruler or other measuring device
Accuracy or precision
Not less than Class 0.5
±0: 5%
±0. 2 mL
0. 001 mm
Manufacturer name:
Test type and requirements:
Mechanical seal model. Specifications:
Rotating ring material:
Auxiliary seal material, type:
Test instrument
Test content
Instrument name
Accuracy
Isolation fluid
Isolation fluid
Body name
Test personnel:
HG / T 2099 - 9
Appendix
Content and format of mechanical seal test report (reference)
Mechanical seal test report
Production date:
Stationary ring sample:
Installation shaft diameter (mm):
Isolation fluid pressure
Isolation flow
Isolation flow
Body temperature
Isolation fluid temperature
Rate·speed
Test time
Leakage measurement
Measured mL.
Maximum average
Test date:
Testing unit (official seal)
Abrasion absorption
Conversion mL / h
Rotating ring
Stationary ring
B1 Test bench for upper transmission
HG/T 2099 --91
Sketch mechanical seal test device schematic
(reference)
B1.1 Test single-end skewer mechanical seal, only qualitative observation of leakage (see Figure B1) B1.2 Test double-end skewer mechanical seal can collect leaked isolation fluid (see Figure -B2), isolation fluid
pressure gas source
B2 lower transmission test bench
test piece
Observe leakage
isolation fluid out
B2.1 Test single-end skewer mechanical seal can collect leaked gas (see Figure B3). Test Double-end face mechanical seal for kettle can collect isolation fluid that is contaminated and leaked (see Figure B4) B2.2:
Retreat gas
Isolation fluid out
Experimental
Isolation fluid
Pressure gas source
Bench seal
Two-isolation fluid
Pressure gas source
Test piece
Two-isolation fluid in
Test piece
Isolation fluid in
Pressure gas source
Bench seal
Additional instructions:
This standard is proposed by China National Chemical Equipment Corporation. HG / T 2099 --91
This standard is under the jurisdiction of the Chemical Industry Special Seals Standardization Technical Committee of the Ministry of Chemical Industry. This standard was drafted by Jiangsu Chemical Machinery Research Institute, Beijing Institute of Chemical Technology, Zhejiang Provincial Chemical Machinery Seals Factory and other drafters of this standard, including Hu Guo, Lin Xuehai and Zhou Jianping. People's Republic of China
Chemical Industry Standard
Egg Mechanical Seal Test Specification
HG/T 2099-91
Chemical Industry Standard Compilation Department
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 1000t3
Instrumentation Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No printing required
Format 880× 1230 / 16
Word count 9 000
First printing in May 1993
Second printing in May 1993
Number of print runs 1 — 1 000
Cost 1,00 Yuan
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