CN203979550U - A kind of nuclear power Self-operated pressure reducing valve - Google Patents
A kind of nuclear power Self-operated pressure reducing valve Download PDFInfo
- Publication number
- CN203979550U CN203979550U CN201420285542.3U CN201420285542U CN203979550U CN 203979550 U CN203979550 U CN 203979550U CN 201420285542 U CN201420285542 U CN 201420285542U CN 203979550 U CN203979550 U CN 203979550U
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- Prior art keywords
- valve
- diaphragm
- valve body
- spring
- push rod
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- Expired - Lifetime
Links
- 210000004722 stifle Anatomy 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
A kind of nuclear power Self-operated pressure reducing valve, belongs to valve technology field.It comprises valve body, entering medium takes over, going out medium takes over and stifle, in valve body, be equipped with spool, spool is provided with valve core spring and valve core spring pad, spool upper end connects push rod base, push rod base is by the push rod base spring supporting arranging, in valve gap, be provided with diaphragm base plate and spring seat, between diaphragm base plate and spring seat, pass through the Regulation spring resilient engagement arranging, spring seat connects adjustable lever, between valve body and valve gap, form diaphragm chamber, in diaphragm chamber, be provided with the diaphragm as built-in actuator, diaphragm upper surface coordinates with diaphragm base plate, diaphragm lower surface coordinates with push rod base, diaphragm chamber communicates with the internal feedback hole being arranged on valve body, internal feedback hole communicates with the medium channel that goes out of valve body.The utility model is removed filler design and has greatly been reduced valve form structure, has alleviated valve weight, avoids the excessive overweight phenomenon that cannot install of valve size, improves flexible adjustment and the degree of regulation of valve.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of nuclear power Self-operated pressure reducing valve.
Background technique
The develop rapidly of recent year valve industry, the product structure type of each valve producer emerges in an endless stream.Mainly there is valve heaviness, structure higher and especially design, spring external, the pressure inlet tube external of filler of the unsettled shortcoming of adjusting function bigger than normal in existing nuclear power Self-operated pressure reducing valve.These shortcomings have been brought a lot of troubles to user when installment and debugging uses at the scene, hour cause valve to install at installing space.
Model utility content
The problem existing for prior art, the purpose of this utility model is that design provides the technological scheme of a kind of nuclear power Self-operated pressure reducing valve.
Described a kind of nuclear power Self-operated pressure reducing valve, comprise valve body, be arranged on entering medium adapter and going out medium adapter of valve body both sides, be arranged on the stifle of valve body bottom, it is characterized in that being equipped with spool in described valve body, described spool is provided with valve core spring and valve core spring pad, described spool upper end connects push rod base, described push rod base is by the push rod base spring supporting arranging, in described valve gap, be provided with diaphragm base plate and spring seat, between described diaphragm base plate and spring seat, pass through the Regulation spring resilient engagement arranging, described spring seat connects adjustable lever, between described valve body and valve gap, form diaphragm chamber, in described diaphragm chamber, be provided with the diaphragm as built-in actuator, described diaphragm upper surface coordinates with diaphragm base plate, described diaphragm lower surface coordinates with push rod base, described diaphragm chamber communicates with the internal feedback hole being arranged on valve body, described internal feedback hole communicates with the medium channel that goes out of valve body.
Described a kind of nuclear power Self-operated pressure reducing valve, medium adapter and valve body welded seal are taken over, gone out to the medium that enters described in it is characterized in that.
Described a kind of nuclear power Self-operated pressure reducing valve, is characterized in that sealing by the seal ring arranging after described stifle is connected with valve body screw thread.
Described a kind of nuclear power Self-operated pressure reducing valve, is characterized in that described entering in medium adapter is provided with the above step-down baffle plate of a slice, is provided with one group in described step-down baffle plate and enters medium holes.
Described a kind of nuclear power Self-operated pressure reducing valve, is characterized in that described stifle is provided with cutoff hole.
Described a kind of nuclear power Self-operated pressure reducing valve, is characterized in that being provided with plane bearing and pad between described Regulation spring and adjustable lever.
Above-mentioned a kind of nuclear power subtracts valve with self-powering type, simple in structure, reasonable in design, adopt built-in actuator, internal feedback structure, remove filler design and greatly reduced valve form structure, alleviate valve weight, particularly, in the time that nuclear power field installing space is narrow and small, avoided the excessive overweight phenomenon that cannot install of valve size, plane bearing is set in spring seat, improves flexible adjustment and the degree of regulation of valve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model valve core structure schematic diagram;
Fig. 3 is the utility model throttle flap structural representation;
Fig. 4 is the utility model stifle structural representation.
In figure: 1-stifle; 101-throttle orifice; 2-seal ring; 3-valve body; 301-enters medium channel; 302-goes out medium channel; 303-internal feedback hole; 4-enters medium and takes over; 401-step-down baffle plate; 4011-enters medium holes; 5-double-screw bolt; 6-nut; 7-diaphragm base plate; 8-Regulation spring; 9-spring seat; 10-plane bearing; 11-pad; 12-set screw nut; 13-overhead guard; 14-adjustable lever; 15-valve gap; 16-diaphragm; 17-push rod base; 18-goes out medium and takes over; 19-push rod base spring; 20-spool; 21-valve core spring; 22-valve core spring pad.
Embodiment
Further illustrate the utility model below in conjunction with Figure of description.
As shown in the figure, a kind of nuclear power comprises valve body 3 with Self-operated pressure reducing valve, is arranged on entering medium adapter 4 and going out medium adapter 18 of valve body 3 both sides, is arranged on the stifle 1 of valve body 3 bottoms.Wherein valve body 3 is connected with double-screw bolt 5 by nut 6 with valve gap 15; Enter medium adapter 4 and go out medium adapter 18 and valve body 3 welded seals, enter in medium adapter 4 and be provided with the above step-down baffle plate 401 of a slice, in step-down baffle plate 401, be provided with one group and enter medium holes 4011, enter medium adapter 4 and communicate with the medium channel 301 that enters of valve body 3, go out medium adapter 18 and communicate with the medium channel 302 that goes out of valve body 3; After stifle 1 is threaded with valve body 3, seal by the seal ring 2 arranging, stifle 1 is provided with cutoff hole 101.
In valve body 3, be equipped with spool 20, spool 20 is provided with valve core spring 21 and valve core spring pad 22, and spool 20 upper ends connect push rod base 17, and push rod base 17 is supported by the push rod base spring 19 arranging.In valve gap 15, be provided with diaphragm base plate 7 and spring seat 9, between diaphragm base plate 7 and spring seat 9, pass through Regulation spring 8 resilient engagement that arrange.Spring seat 9 connects adjustable lever 14, is provided with plane bearing 10 and pad 11 between Regulation spring 8 and adjustable lever 14.Adjustable lever 14 is fixed on valve gap 15 by the set screw nut 12 arranging.In order to protect adjustable lever 14, at valve gap 15 tops, overhead guard 13 is also set.After valve body 3 is fixing with valve gap 15, form diaphragm chamber between the two, in diaphragm chamber, be provided with the diaphragm 16 as built-in actuator, diaphragm 16 two ends are fixing by nut 6 and double-screw bolt 5, and diaphragm 16 upper surfaces coordinate with diaphragm base plate 7, and diaphragm 16 lower surfaces coordinate with push rod base 17.Diaphragm chamber communicates with the internal feedback hole 303 being arranged in valve body 3, and internal feedback hole 303 communicates with the medium channel 302 that goes out of valve body 3.
When work, medium is entered into medium and is taken over 4 by the direction of arrow, the step-down baffle plate 401 of flowing through enters into medium channel 301, enter again the throttle orifice 101 of stifle 1, by manual tune adjustable lever 14 compression adjustment springs 8, promote diaphragm 16 displacements, push rod base 17 promotes spool 20 and throws off with valve body 3 sealing surfaces, medium is flowed through after valve through spool 20 and valve body 3 orifice sizes, downstream pressure contacts with diaphragm 16 by valve body internal feedback hole 303, reach an equinoctial point of downstream pressure and Regulation spring 8 pretightening forces, when rising, downstream pressure promotes diaphragm 16 displacements, compression adjustment spring 8, spool 20 moves up, downstream pressure drops to equinoctial point, when downstream pressure reduces, Regulation spring 8 promotes diaphragm 16 displacements, compression push rod base spring 19 and valve core spring 21, spool 20 moves down, downstream pressure is gone up to equinoctial point.
Shown in the above and figure is only preferred implementation of the present utility model.It should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a nuclear power Self-operated pressure reducing valve, comprise valve body (3), the medium that enters that is arranged on valve body (3) both sides is taken over (4) and is gone out medium adapter (18), be arranged on the stifle (1) of valve body (3) bottom, it is characterized in that being equipped with spool (20) in described valve body (3), described spool (20) is provided with valve core spring (21) and valve core spring pad (22), described spool (20) upper end connects push rod base (17), described push rod base (17) is supported by the push rod base spring (19) arranging, in valve gap (15), be provided with diaphragm base plate (7) and spring seat (9), between described diaphragm base plate (7) and spring seat (9), pass through Regulation spring (8) resilient engagement arranging, described spring seat (9) connects adjustable lever (14), between described valve body (3) and valve gap (15), form diaphragm chamber, in described diaphragm chamber, be provided with the diaphragm (16) as built-in actuator, described diaphragm (16) upper surface coordinates with diaphragm base plate (7), described diaphragm (16) lower surface coordinates with push rod base (17), described diaphragm chamber communicates with the internal feedback hole (303) being arranged on valve body (3), described internal feedback hole (303) communicates with the medium channel (302) that goes out of valve body (3).
2. a kind of nuclear power Self-operated pressure reducing valve as claimed in claim 1, the medium that enters described in it is characterized in that is taken over (4), is gone out medium adapter (18) and valve body (3) welded seal.
3. a kind of nuclear power Self-operated pressure reducing valve as claimed in claim 1, is characterized in that sealing by the seal ring (2) arranging after described stifle (1) is threaded with valve body (3).
4. a kind of nuclear power Self-operated pressure reducing valve as claimed in claim 1, is characterized in that described entering in medium adapter (4) is provided with the above step-down baffle plate of a slice (401), is provided with one group in described step-down baffle plate (401) and enters medium holes (4011).
5. a kind of nuclear power Self-operated pressure reducing valve as claimed in claim 1, is characterized in that described stifle (1) is provided with cutoff hole (101).
6. a kind of nuclear power Self-operated pressure reducing valve as claimed in claim 1, is characterized in that being provided with plane bearing (10) and pad (11) between described Regulation spring (8) and adjustable lever (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285542.3U CN203979550U (en) | 2014-05-30 | 2014-05-30 | A kind of nuclear power Self-operated pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285542.3U CN203979550U (en) | 2014-05-30 | 2014-05-30 | A kind of nuclear power Self-operated pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979550U true CN203979550U (en) | 2014-12-03 |
Family
ID=51976995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285542.3U Expired - Lifetime CN203979550U (en) | 2014-05-30 | 2014-05-30 | A kind of nuclear power Self-operated pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931202A (en) * | 2017-04-11 | 2017-07-07 | 鑫矿液压科技有限公司 | A kind of pressure-reducing valve |
| CN108121093A (en) * | 2017-12-29 | 2018-06-05 | 深圳市华星光电技术有限公司 | Regulator and spraying cutter |
-
2014
- 2014-05-30 CN CN201420285542.3U patent/CN203979550U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931202A (en) * | 2017-04-11 | 2017-07-07 | 鑫矿液压科技有限公司 | A kind of pressure-reducing valve |
| CN108121093A (en) * | 2017-12-29 | 2018-06-05 | 深圳市华星光电技术有限公司 | Regulator and spraying cutter |
| CN108121093B (en) * | 2017-12-29 | 2020-08-04 | 深圳市华星光电技术有限公司 | Pressure regulating device and spraying cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190321 Address after: 311402 No. 87-1 Golf Road, Yinhu Street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Liangsheng Electric Co., Ltd. Address before: 311402 No. 5 Gaofu Road, Gaoqiao Town, Fuyang City, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Lianggong Valves Co.,Ltd. |
|
| TR01 | Transfer of patent right |