This standard specifies the type and installation dimensions, performance requirements, technical requirements of main parts, installation requirements, performance testing and marking, packaging, etc. of hydrocyclones used in mechanical seal circulation protection systems. This standard applies to sealed hydrocyclones. Its working parameters are: pressure range 0.4~6.3MPa; working temperature -20~200℃; working flow 2~8L/min; working medium is liquid containing solid particles. JB/T 6633-1993 Hydrocyclone for mechanical sealing system JB/T6633-1993 Standard download and decompression password: www.bzxz.net

J22 | | tt | | JB |
Ministry of Machinery Industry of the People's Republic of China
Released
Implemented on 1994-01-01
Machinery Industry Standard of the People's Republic of China
Hydrocyclone for mechanical sealing systems Device
Subject content and scope of application
JB/T663393
This standard specifies the type and installation dimensions of hydrocyclones (hereinafter referred to as hydrocyclones) for mechanical seal circulation protection systems. Performance requirements, technical requirements for main parts, installation requirements, performance testing and marking, packaging, etc. This standard applies to sealed hydrocyclones. Its working parameters are: pressure range 0.4~6.3MPa: working temperature: -20~~+200℃, working flow base: 2~8L/min: working medium is liquid containing solid particles. 2 Reference standards
ZBJ22002 O-type rubber ring for mechanical seals
ZBJ22022
Filled tetrafluoroethylene and tetrafluoroethylene roughening for mechanical seals Technical conditions 3 Type and installation dimensions| |tt||3.1 Type
The sealed hydrocyclone is divided into two types: ZSA type and ZSB type, see Figure 1. D | | tt |
Implemented on 1994-01-01
1
Model example:
JB/T663393
The interface thread diameter or pipe diameter is expressed in Arabic numerals The nominal diameter of the liquid container is D, and Arabic numerals are used to indicate the pressure level, 10MPa
The structural type is divided into A and B types
ZS is used to indicate the sealed hydrocyclone
means the pressure level is 6.3MPa, Type A sealed hydrocyclone with nominal diameter 30mm and interface thread G1/2: ZSA63-30/G1/2
3.3 Installation dimensions
The installation dimensions of the sealed hydrocyclone should comply with Table 1 Regulation. Table 1
Type
No.
ZSA
ZSB
D
64
80
Note : one pipe in outer diameter: one pipe wall thickness, performance requirements
4
D.
30
30
H||tt| |152
190
H.
205
d
27
A
34
47
mm
G1/z
#22xc
4.1 Separation accuracy refers to the average particle size of the smallest solid phase particle group in the underflow. It is related to the resistance drop consumed by the hydrocyclone. The resistance drop and separation accuracy values ??are shown in Figure 2
89
88
water
87
86| |tt||85
80
2
resistance drop
20
>20pm
6~30pm
Chuangyinwu
2~11jm
Ratio of solid particle masses. It is related to the resistance drop consumed by the hydrocyclone. The resistance drop and separation efficiency values ??are shown in Figure 2.
4.3 The resistance drop refers to the difference between the inlet pressure and the top flow or bottom flow outlet pressure. Under normal operating conditions, the seal liquid is applied The relationship between device resistance drop and flow rate is shown in Figure 3.
2
5 Main parts technical requirements
urm/
25
20
15
10||tt ||JB/T
6633
2
93
Medical power decreased p
X10-\MPs
Figure 3|| tt||The relationship between resistance drop and quantity
5.1 The hydrocyclone used in the machine sealing system shall comply with the provisions of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 5.2 Commonly used materials for each part of the hydrocyclone are shown in Table 2. Table 2
Part name
Material
5.3
5.4
5.5
Body
1Cr18Ni9Ti
Lining
Si,N.
Pre-cover
Pin
1Cr18Ni9Ti
Seal
Picture||tt ||The geometric dimensions and geometric tolerances of each part of polytetrahydroethylene, oxygen rubber, butadiene rubber, and ethylene-propylene rubber hydrocyclone should be according to the dimensions given in the drawing. The technical requirements for silicon nitride lining materials are shown in Table 3. Table 3
Performance name
Strength
Strength
Flexural strengthWww.bzxZ.net
Thermal shock stability
Special content of lining free silicon|| tt||Single
HRA
MPa
times
%
bit
reaction
burn||tt| |Static pressure
etc
form
type
80
≥200
>5
10||tt ||No cracking is allowed around the inner cavity of the lining, and cracks and impurities are not allowed in the finished product. O-type rubber rings should comply with ZBJ22002 regulations.
5.6
PTFE sealing ring should comply with ZBJ22022 regulations, 5.7
5.8
6
junction
Silicone|| tt||Dry pressure sensitive type
>72
>170
>s
>10
After assembling the parts of the sealed applicator, they should For the micro-hydraulic pressure test, the pressure is 1.25 times the working pressure. It should not be released for 15 minutes. Installation requirements
6.1
Sealed hydrocyclones are allowed to be installed horizontally or vertically. The hydrocyclone interface has two connection methods: threaded interface or welded pipe interface, which can be selected according to needs. 6.2
6.3 The pipe fittings matched with the sealed hydrocyclone should be evenly stressed and must not be installed with strong twist. 7 Performance test
7.1 The separation accuracy, separation efficiency, pressure drop and working flow are measured on a special test bench. 3
JB/T6633-93
7.2 The separation accuracy of hydrocyclone and its particle size value are detected by a metallographic microscope with a resolution better than 1m. 7.3 Method for measuring hydrocyclone separation efficiency: Take samples of the same volume at the inlet and bottom flow port, filter and dry them, and then measure the mass with a precision balance with a graduation value better than 0.1mg. Then calculate the mass ratio of the two. 7.4 The hydrocyclone inlet pressure, top flow pressure and bottom flow pressure are measured using a grade 1 industrial pressure gauge. 7.5 The working flow of the hydrocyclone is measured with a grade 1 industrial rotor flowmeter. 8 Marking and Packaging
8.1 The packaging of the product should be able to prevent damage and loss of parts during transportation. 8.2 When the product leaves the factory, oil seals should be installed on the sealing surfaces of each pipe of the hydrocyclone. 8.3 The product should have the manufacturer's logo on it.
8.4 When the product leaves the factory, it should be accompanied by a certificate of conformity. The certificate should contain the product model, name, quantity, manufacturer name, signature and date of the inspector.
8.5
There should be product instructions, packing list and other technical documents inside the wooden box: "Be careful", "moisture-proof\" should be marked on the outside of the box. Additional instructions:
This standard was proposed and administered by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard is drafted by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Zhang Yuhong, Shi Fujiang, and Liu Yueying.
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