HG/T 2122-1991 Mechanical seal auxiliary device for kettle HG/T2122-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T 2122--91
Auxiliary Mechanical Seals for Kettles
Published on September 19, 1991
Ministry of Chemical Industry of the People's Republic of China
Implementation on May 1992
Chemical Industry Standard of the People's Republic of China
Auxiliary Mechanical Seals for Kettles
Subject Content and Scope of Application
This standard specifies the combination type and structure of auxiliary mechanical seals for kettles. HG/T2122-91
This standard is applicable to mechanical seals of carbon steel and stainless steel reaction agitator shafts and similar vertical rotating shafts: its working parameters are: the mass pressure in the sealing chamber is 1.33×10-3 (absolute) 2.5MPa (gauge pressure)! ：The medium temperature in the sealing chamber is 0～80C: The outer diameter of the stirring shaft or sleeve is 30~130mm and the rotation speed is not more than 500r. The medium is various fluids except strong oxidizing acids and high-concentration alkalis. 2 Reference standards
GR2555 General purpose pipe flange connection size and sealing form size#
GH2336
Yichuantu pipe flange
JB1902. Expanded end straight pipe joint
JB/Z105 Steel pressure vessel welding regulations
Typical combination type of auxiliary device for mechanical seal for kettle 1
Piston additional use with fluid container special mechanical sealing combination standard see figure Kettle mechanical seal|| tt||Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 1991 and implemented on January 1, 1992
JIG/T2122-91
The combination of high-level differential isolation fluid container and mechanical seal is shown in Figure 2.O
Signature-use machine-cut seal
HG/T2122-91
3.3The combination of nitrogen cylinder pressurized isolation fluid container and mechanical seal is shown in Figure 3.Signature-use mechanical seal
HG/T2122
3.4The combination of oil pump pressurized sealing liquid circulation and mechanical seal is shown in Figure 4.Signature-use mechanical seal
Hand pressure pump pressurized isolation fluid container and machine Mechanical seal combination type see Figure 5. Signature mechanical seal
Structure and main dimensions of isolation fluid container 4.1
HIG/T2122-91
The structure of piston isolation fluid container is shown in Figure 6, the pipe port table is shown in Table 1, and the main dimensions refer to Table 2 Figure
Pipe port code
Insulation volume (open)
Isolation fluid replenishment door
Exhaust port
Isolation fluid outlet
Isolation fluid inlet
Current selection and standard
Pipe joint A8.JB1902
Pipe joint A8.JB1902
Pipe joint A8.JB19 02
Pipe joint A8.JB1902
4.2 High head difference isolation fluid container
HG/T2122-91
4.2.1 The vertical structure of the high head difference isolation fluid container is shown in Figure 7, the pipe port table is shown in Table 3, and the size is referred to Table 4. Figure
Pipe port code
Volume (liter)
Isolation fluid outlet
Isolation fluid return port
Isolation fluid replenishment port
Exhaust port
Liquid level gauge interface (lower)
Liquid level gauge interface (upper)
Specifications and standards
Pipe joint A8.JB1902
Pipe joint A8.JB1902
Pipe joint A8.JB1902
Pipe joint A8.JB1902
Pipe joint A8.JB1902
Flange Dg20.GB2556
Flange Dg20.GB2556
HG/T2122—91
Pipe orifice table see Table 5, main dimensions refer to Table 6, horizontal structure of high head difference isolation fluid container see Figure 8, Figure
Pipe orifice code
Volume (liter)
Weakly separated fluid return port
Pressure port
Cold stamp water outlet|| tt||Exhaust port
Isolation fluid outlet
Cooling water inlet
Use
Specifications and standards
Pipe joint A8.JB1902
Pipe joint A8.JB1902
Water pipe union, G1/2
Pipe joint A8.JB1902
Pipe joint A8.JB1902
-Water pipe union, G1/2
HG/T2122-91
4.3 The structure of the hand pump isolation fluid container is shown in Figure 9, the pipe port table is shown in Table 7, and the main dimensions refer to Table 8.
Volume (open)|| tt||Pipe code
Marking of isolation fluid container
Cooling water outlet
Cooling water inlet
Isolation fluid outletbZxz.net
Lili fluid return port
Exhaust port valve
HG/T2122-
Isolation fluid replenishment port cabinet valve
Structural type code (see Table 9)
Volume (dm\)
(Expressed in two digits, add zero in front if less than two digits)Pressure (MPa)
Material (see Table 10)
Standard number of "Mechanical seal auxiliary device for kettle" Table 9
Isolation fluid container structure Configuration name
Piston type isolation fluid container
High head difference isolation fluid container (horizontal)High head difference screen fluid container (vertical)Hand pressure pump isolation fluid container
Wind fluid container material
Stainless steel
Other materials
Specifications and standards
Water pipe joint, G1/2
Water pipe joint, G1/2
Pipe joint A8.JB1902
Pipe joint A8.JB1902
JIW-25/6
JIIW-25/6
HG/T2122
GC (L)
Marking example:
High head difference isolation fluid container (vertical), volume 6dm, pressure 1.6MPa, material is stainless steel, marking: GC(L)-0G-1.6-B-HIG/T2122
6 Technical requirements
RG/T2122-
6.1 The flange of the isolation fluid container shall comply with the provisions of GB2555GB2556. 6.2 The welding process of the isolation fluid container shall be carried out according to JB/Z105. 6.3 The material of the isolation fluid container shall be selected according to the corrosiveness of the isolation fluid and whether it is in contact with the material. Carbon steel can be selected for non-corrosive media and corrosive media that are not in direct contact with the material. For corrosive media that are in direct contact with materials, corrosion-resistant materials should be used.
6.4 Isolation fluid containers are divided into two types according to the use pressure value: 1.6MPa and 2.5MPa. When used, isolation fluid containers with a pressure higher than the maximum use pressure of the mechanical seal should be used.
6.5Hydraulic test
6.5.1 The hydraulic test pressure is 1.25 times the design pressure. 6.5.2 The airtightness test pressure is 1.2 times the design pressure. 7 Pressure test method
7.1 Hydraulic test: Fill with liquid (set a drain at the high point of the container plate (11. The air can be exhausted before slowly increasing the pressure to the specified test pressure) and hold it for 15 minutes, then reduce the pressure to the design pressure and hold it for at least 30 minutes, and check it when it returns.7.2 Air tightness test: Slowly increase the pressure to 10% of the specified pressure, hold it for 10 minutes, and then conduct an initial inspection of all welds and joints. After passing the inspection, continue to increase the pressure to 50% of the test pressure, and then gradually increase and retreat to the test pressure in steps of 10% of the specified test pressure, hold it for 15 minutes, and then reduce it to the design pressure and hold it for at least 30 minutes, and check it at the same time.7.3 During the pressure test , if any abnormal phenomenon such as abnormal sound, force drop or malfunction of the adding device is found, the test should be stopped and the cause should be found out.
7.4 Provisions for qualified products during inspection
7.4.1 There is no leakage in the welds and joints of the wall, 7.4.2 There is no visible abnormal deformation of the shape after the test, 7.4.3 All connecting fastening bolts are intact, 8 Marking and packaging
8.1 The product packaging box should have the product logo, factory date and manufacturer name when the product leaves the factory. 8.2 The product should be accompanied by a product quality certificate when it leaves the factory, and the signatures and dates of the inspection department and inspection personnel should be attached. The manufacturer should provide product instructions according to user requirements. 8.3
8.4 The packaging should be able to prevent the product from being damaged and parts from being lost during transportation and storage. Additional remarks:
This standard was proposed by China National Chemical Equipment Corporation. This standard was drafted by the Chemical Industry Special Seals Standardization Technical Committee of the Ministry of Chemical Industry: This standard was drafted by Beijing Institute of Chemical Technology, and the Chemical Machinery Research Institute of the Ministry of Chemical Industry, the First Design Institute of the Ministry of Chemical Industry, and the Jiangsu Chemical Machinery Research Institute participated in the drafting.
The main drafters of this standard are Liu Wei, Zhang Qiuxiang, Zhang Aizhu, Li Junzhi, and Hu Guo.
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