CN206738579U - Low leakage low noise balance cage control valve - Google Patents
Low leakage low noise balance cage control valve Download PDFInfo
- Publication number
- CN206738579U CN206738579U CN201621145761.7U CN201621145761U CN206738579U CN 206738579 U CN206738579 U CN 206738579U CN 201621145761 U CN201621145761 U CN 201621145761U CN 206738579 U CN206738579 U CN 206738579U
- Authority
- CN
- China
- Prior art keywords
- bonnet
- sleeve
- valve
- valve body
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a kind of low leakage low noise balance cage control valve, including valve body, the valve body and the coaxial airtight connection of bonnet, the sleeve is installed in the inside cavity formed between valve body and bonnet, the valve rod is set in the bonnet, one end of the valve rod is connected with the valve plug being arranged in the sleeve, the other end of valve rod stretches out the bonnet and the airtight connection between bonnet, the sleeve is made up of lower sleeve and upper bush, the lower sleeve is supported on the valve body by graphite wound gasket circle, multiple passages are also symmetrically offered on the lower sleeve, the upper end of the lower sleeve and the lower end of upper bush pass through elastic seal ring airtight connection, the upper end of the upper bush is connected between the valve body and bonnet.Its remarkable result is：Sleeve is arranged to two-part structure and sealing ring is set between the ends, improves leakage class；The passage of symmetric design is opened up on sleeve simultaneously, effectively reduces noise.
Description
Technical field
Control valve technical field is the utility model is related to, is a kind of low leakage low noise balance cage control specifically
Valve processed.
Background technology
Execution unit of the control valve as robot control system(RCS), in all trades and professions extensive use, with the high speed of industrial automation
Development, the requirement more and more higher to control valve.
Diffusion and expansion easily occur in some High Pressure Difference occasions, gas throttling, so as to produce noise, some valves exist
Aperture is designed on the sleeve of cage valve can effectively reduce noise.But the leakage class of cage valve is relatively low, it is not easy to meets scene
Working condition requirement.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of low leakage low noise balance cage control
Valve, the control valve make improvement on the basis of low noise balances cage valve, can not only reduce noise, additionally it is possible to improve leakage
Grade.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of low leakage low noise balance cage control valve, including valve body, sleeve, valve plug, bonnet, the valve body and bonnet
Coaxial airtight connection, the sleeve are installed in the inside cavity formed between valve body and bonnet, in the bonnet described in setting
Valve rod, one end of the valve rod are connected with the valve plug being arranged in the sleeve, and the other end of valve rod stretches out the bonnet and and valve
Airtight connection between lid, its key are：The sleeve is made up of lower sleeve and upper bush, and the lower sleeve is wound by graphite
Packing ring is supported on the valve body, multiple passages is also symmetrically offered in the side wall of the lower sleeve and bottom, under described
The upper end of sleeve and the lower end of upper bush are connected to the valve by elastic seal ring airtight connection, the upper end of the upper bush
Between body and bonnet.
The two-part structure that sleeve in conventional art is arranged to be made up of upper bush and lower sleeve by this programme, and upper
High performance elastic seal ring is set between sleeve and lower sleeve, improves the leakage class of control valve, while is opened on sleeve
If the passage of symmetric design, the gas throttling diffusion noise caused with expansion is effectively reduced, realizes the low of control valve
Leakage, low noise function.
Further, in order to ensure the sealing of control valve, it is additionally provided between the valve rod and the upper end of bonnet
For airtight and watertight padding, gland and lower liner are respectively equipped with the upper/lower terminal of the filler.
Further, in order to ensure the sealing between valve rod and bonnet, inwall and valve rod in the gland, fill out
Expect to be mounted on O-ring seal between the outer wall of gland and the inwall of bonnet.
Further, in order to ensure the bonding strength between gland and bonnet, in the top of the gland also
Provided with pressing plate, the pressing plate is bolted to connection with the bonnet.
Further, outwards turnover forms flanging to the top edge of the upper bush, and the flanging is connected to the valve body and valve
On the step formed between lid, toothed pad is provided with the upper and lower bottom surface of the flanging.
By above-mentioned folded edges, the installation of sleeve can be simplified, and effectively ensure the sealing of sleeve, raising is let out
Reveal grade.
Remarkable result of the present utility model is：It is simple in construction, it is novel in design, the sleeve in conventional art is arranged to by upper
The two-part structure that sleeve is formed with lower sleeve, is easy to safeguard and change sealing ring；And set between upper bush and lower sleeve
High performance elastic seal ring, the leakage grade of control valve is effectively increased, while the ventilation of symmetric design is opened up on sleeve
Hole, the compressible fluid diffusion noise caused with expansion is effectively reduced, realize low leakage, the low noise work(of control valve
Energy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the sleeve.
Embodiment
Specific embodiment of the present utility model and operation principle are described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 1 and 2, a kind of low leakage low noise balance cage control valve, including valve body 1, sleeve, valve plug 5, valve
Lid 10, the valve body 1 are installed in the cavity formed between valve body 1 and bonnet 10 with 10 coaxial airtight connection of bonnet, the sleeve
Inside, the valve rod 9 is set in the bonnet 10, one end of the valve rod 9 is connected with the valve plug 5 being arranged in the sleeve,
The other end of valve rod 9 stretches out the bonnet 10 and is connected with the output shaft of drive mechanism, and the airtight connection between bonnet 10, described
Sleeve is made up of lower sleeve 3 and upper bush 7, and the lower sleeve 3 is supported on the valve body 1 by graphite wound gasket circle 2, in institute
State the side wall of lower sleeve 3 and bottom also symmetrically offer multiple passages 4, the upper end of the lower sleeve 3 with upper bush 7
End passes through the airtight connection of elastic seal ring 6, and the upper end of the upper bush 7 is connected between the valve body 1 and bonnet 10.
It is additionally provided between the valve rod 9 and the upper end of bonnet 10 for airtight and watertight padding 12, in the filler 12
Upper/lower terminal is respectively equipped with gland 13 and lower liner 11, in inwall and valve rod 9, the gland of the gland 13
O-ring seal 16 is mounted between 13 outer wall and the inwall of bonnet 10, pressure is additionally provided with the top of the gland 13
Plate 14, it is fixedly connected between the pressing plate 14 and the bonnet 10 by bolt 15.
It can also be seen that the top edge of the upper bush 7, which outwards turns down, forms flanging from Fig. 2, the flanging is connected to institute
State on the step formed between valve body 1 and bonnet 10, toothed pad 8 is provided with the upper and lower bottom surface of the flanging.
The two-part structure that sleeve in conventional art is arranged to be made up of upper bush 7 and lower sleeve 3 by the present embodiment, just
In maintenance and change sealing ring；And high performance elastic seal ring 6 is set between upper bush 7 and lower sleeve 3, effectively increase
The leakage grade of control valve, while the passage 4 of symmetric design is opened up on lower sleeve 3, effectively reduce compressible fluid expansion
The noise caused with expansion is dissipated, it is achieved thereby that the low leakage of control valve, low noise function.
Claims (3)
1. a kind of low leakage low noise balance cage control valve, including valve body (1), sleeve, valve plug (5), bonnet (10), the valve
Body (1) is installed in the cavity formed between valve body (1) and bonnet (10) with bonnet (10) coaxial airtight connection, the sleeve
Portion, sets valve rod (9) in the bonnet (10), and one end of the valve rod (9) and the valve plug (5) being arranged in the sleeve connect
Connect, the other end of valve rod (9) stretches out the bonnet (10) and the airtight connection between bonnet (10), it is characterised in that：The set
Cylinder is made up of lower sleeve (3) and upper bush (7), and the lower sleeve (3) is supported on the valve body by graphite wound gasket circle (2)
(1) on, multiple passages (4) are also symmetrically offered in the side wall of the lower sleeve (3) and bottom, the lower sleeve (3)
Upper end and the lower end of upper bush (7) are connected to institute by elastic seal ring (6) airtight connection, the upper end of the upper bush (7)
State between valve body (1) and bonnet (10)；
Outwards turnover forms flanging for the top edge of the upper bush (7), the flanging be connected to the valve body (1) and bonnet (10) it
Between on the step that is formed, be provided with toothed pad (8) in the upper and lower bottom surface of the flanging；
It is additionally provided between the upper end of the valve rod (9) and bonnet (10) for airtight and watertight padding (12), in the filler
(12) upper/lower terminal is respectively equipped with gland (13) and lower liner (11).
2. low leakage low noise balance cage control valve according to claim 1, it is characterised in that：In the gland
(13) O-ring seal is mounted between inwall and the inwall of valve rod (9), the outer wall of gland (13) and bonnet (10)
(16)。
3. low leakage low noise balance cage control valve according to claim 1, it is characterised in that：In the gland
(13) pressing plate (14) is additionally provided with above, is fixedly connected between the pressing plate (14) and the bonnet (10) by bolt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145761.7U CN206738579U (en) | 2016-10-21 | 2016-10-21 | Low leakage low noise balance cage control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145761.7U CN206738579U (en) | 2016-10-21 | 2016-10-21 | Low leakage low noise balance cage control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738579U true CN206738579U (en) | 2017-12-12 |
Family
ID=60554516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145761.7U Expired - Fee Related CN206738579U (en) | 2016-10-21 | 2016-10-21 | Low leakage low noise balance cage control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758042A (en) * | 2018-07-12 | 2018-11-06 | 上海核阀门股份有限公司 | Self-operated type casing gas determines valve |
-
2016
- 2016-10-21 CN CN201621145761.7U patent/CN206738579U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758042A (en) * | 2018-07-12 | 2018-11-06 | 上海核阀门股份有限公司 | Self-operated type casing gas determines valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |