CN204985750U - Poor warm water governing valve that subtracts of high pressure - Google Patents
Poor warm water governing valve that subtracts of high pressure Download PDFInfo
- Publication number
- CN204985750U CN204985750U CN201520721477.9U CN201520721477U CN204985750U CN 204985750 U CN204985750 U CN 204985750U CN 201520721477 U CN201520721477 U CN 201520721477U CN 204985750 U CN204985750 U CN 204985750U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- core housing
- high pressure
- valve body
- 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
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model belongs to the valve field, concretely relates to poor warm water governing valve that subtracts of high pressure, the valve body that have cavity is opened including the center, the valve body upper end is connected with the valve gap, be provided with the case in the cavity of center, be provided with the case cover on the case, case cover upper end is provided with the guide pin bushing and compresses tightly through the valve gap, be provided with the upper seal pad between valve gap and the last guide pin bushing, be provided with the lower seal pad between case cover bottom and the valve body inner wall, and the case cover is clearance fit with the valve body, the case upper end is connected with the valve rod. Can realize online the change and the maintenance after case and the damage of case cover. Only need to change case or the case cover that damages, need not change the life who puts in order deck valve door, effectual extension valve.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of High Pressure Difference Desuperheating water regulating valve.
Background technique
The High Pressure Difference Desuperheating water regulating valve of current use is generally made up of valve body, spool, valve core housing, valve rod, support, actuator, Sealing and assembling set, valve rod lower end is connected with spool, valve rod upper end is connected with actuator, and valve core housing and valve body adopt interference fit to be contained in valve body lumen.Its shortcoming is: after valve core housing and sealing surface damage, need change whole deck valve door, valve is short for working life.
Model utility content
The purpose of this utility model is the defect that exists for prior art and deficiency, provides a kind of High Pressure Difference Desuperheating water regulating valve, can change online and keep in repair, and effectively extend the working life of valve.
For achieving the above object, the utility model by the following technical solutions: comprise the valve body that center has chamber, described valve body upper end is connected with valve gap, and described central chamber is provided with spool, and spool is provided with valve core housing; Described valve core housing has the runner hole be communicated with central lumen, valve core housing upper end is provided with upper guide bush and is compressed by valve gap; Sealing gasket is provided with between described valve gap and upper guide bush; Be provided with lower seal pad between described valve core housing bottom and valve interior wall, and valve core housing and valve body are Spielpassung; Described spool upper end is connected with valve rod.
Further, described spool is staggeredly equipped with 4 pairs of breach from top to bottom, and often pair of breach is opened on spool relatively; Described valve core housing inside is provided with the fixed groove matched with spool.
Further, offer the ledge structure for placing valve core housing in described valve body bottom central lumen, valve body upper-end surface is provided with the ledge structure for placing sealing gasket.
Further, described bonnet central offers for the through hole through valve rod, and described valve gap inner via hole top is provided with step, and described step is provided with Packing seat, is provided with filler pressing sleeve and adopts hold-down grid to compress above valve gap; Filler is filled with between described filler pressing sleeve and Packing seat; Described valve gap is also provided with lower supporting plate.
Further, described upper sealing gasket and lower seal pad all adopt metal wound gasket.
Further, described spool adopts with valve rod and is threaded, and connecting end is provided with straight pin.
Further, the valve seat of described spool adopts linear sealing structure.
Further, described spool and valve core housing adopt spool and the valve core housing of surface carburization process, and hardness is HV950-1100.
Compared with prior art, the utility model has following useful technique effect: by arranging spool in valve body central chamber, and arrange valve core housing on spool, and on valve core housing, offer runner hole, ensures that lumen is communicated with runner hole; Valve core housing is pressed in valve body lumen by upper guide bush and valve gap, valve core housing and valve body, between upper guide bush and valve gap, lower seal pad is set respectively and upper sealing gasket seals, and arrange for Spielpassung between valve core housing and valve body, online replacing and maintenance can be realized after spool and valve core housing damage.Only need change spool or the valve core housing of damage, not need to change whole deck valve door, the effective working life extending valve.
Further, by arranging breach on spool, when containing the solid particles such as welding slag in fluid, spool can not be stuck, flexible movements.
Further, adopt linear sealing structure by arranging spool valve seat, seal pressure is large, closes tight, No leakage.
Further, by adopting metal wound gasket, ensureing sealing effect, extending the working life of valve.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein: 1 is valve body; 2 is lower seal pad; 3 is valve core housing; 4 is spool; 5 is upper guide bush; 6 is straight pin; 7 is metal wound gasket; 8 is valve gap; 9 is valve rod; 10 is Packing seat; 11 is filler; 12 is filler pressing sleeve; 13 is hold-down grid; 14 is lower supporting plate.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, the utility model comprises: center has the valve body 1 of chamber, and described valve body 1 upper end is connected with valve gap 8, and described central chamber is provided with spool 4, spool 4 is provided with valve core housing 3; Described spool 4 is staggeredly equipped with four pairs of breach from top to bottom, and often pair of breach is opened on spool 4 relatively, and two pairs of adjacent breach are along the radial vertical setting mutually of spool 4; Described valve core housing 3 inside is provided with the fixed groove matched with spool 4.
Described valve core housing 3 upper end is provided with upper guide bush 5 and is compressed by valve gap 8; Sealing gasket 7 is provided with between described valve gap 8 and upper guide bush 5; Be provided with lower seal pad 2 between described valve core housing 3 bottom and valve body 1 inwall, and valve core housing 3 and valve body 1 are Spielpassung.Upper sealing gasket 7 and lower seal pad 2 all adopt metal wound gasket.Offer the ledge structure for placing valve core housing 3 in described valve body 1 bottom central lumen, valve body 1 upper-end surface is provided with the ledge structure for placing sealing gasket 2.
Described spool 4 upper end is connected with valve rod 9.Spool 4 adopts with valve rod and is threaded, and connecting end is provided with straight pin 6.Described valve gap 8 center offers for the through hole through valve rod 9, and described valve gap 8 inner via hole top is provided with step, described step is provided with Packing seat 10, is provided with filler pressing sleeve 12 and adopts hold-down grid 13 to compress above valve gap 8; Filler 11 is filled with between described filler pressing sleeve 12 and Packing seat 10; Described valve gap 8 is also provided with lower supporting plate.The valve seat of spool 4 adopts linear sealing structure.Described spool 4 and valve core housing 3 adopt 90Cr18MoV through the spool of Nitrizing Treatment and valve core housing, and hardness is HV950-1100.Valve rod adopts 20Cr13.
Spool, valve core housing are overall through surface carburization, hardness can reach HV950-1100, valve core housing is pressed in valve body lumen by upper guide bush and valve gap, perforate on valve core housing, ensure that lumen is communicated with runner hole, solve High Pressure Difference Desuperheating water regulating valve can change online and keep in repair, extend the working life of valve.
Spool, valve core housing adopt 90Cr18MoV through Nitrizing Treatment, and surface hardness can reach HV950-1100, wear-resisting Anti-erosion, and the life-span is long; Valve core housing and valve body, between upper guide bush and valve gap, adopt high-pressure metal spirotallic gasket to seal, online replacing and maintenance can be realized after spool and valve core housing damage; Valve rod adopts 20Cr13, and valve rod and spool adopt screw thread to add straight pin to be connected, and spool face has breach, and when containing the solid particles such as welding slag in fluid, spool also can not be stuck, flexible movements; Throttleng surface separates with sealing surface, and valve is when small guide vane, and fluid is at the leading opposing seal of throttling place at different levels, and effectively reduce the erosion of fluid to sealing surface, the life-span is long; Spool valve seat adopts linear sealing structure, and seal pressure is large, closes tight, No leakage; Control characteristic is equal percentage, and flow control is accurate, and adjustment range is large.
Valve body and valve gap with bolts, valve core housing and valve body, high-pressure metal spirotallic gasket between upper guide bush and valve gap, is adopted to seal, valve core housing and valve body adopt Spielpassung, online replacing can be realized, valve rod lower end and spool adopt screw thread to add straight pin to be connected, valve rod upper end is connected with actuator by connecting base, realizes switch by valve rod band movable valve plug; Perforate on valve core housing, ensure that lumen is communicated with runner hole, spool adopts Cascade structure, by the fluid in valve by step pressure reducing, flow to and constantly change, thus realize regulating pressure and flow, containing solid particles such as welding slags in fluid, spool also can not be stuck, flexible movements; Spool, valve core housing adopt linear sealing structure, and seal pressure is large, close tight, No leakage; Throttleng surface separates with sealing surface, and valve is when small guide vane, and fluid is at the leading opposing seal of throttling place at different levels, and effectively reduce the erosion of fluid to sealing surface, the life-span is long.
Claims (8)
1. a High Pressure Difference Desuperheating water regulating valve, it is characterized in that, comprise the valve body (1) that center has chamber, described valve body (1) upper end is connected with valve gap (8), described central chamber is provided with spool (4), spool (4) is provided with valve core housing (3); Described valve core housing (3) has the runner hole be communicated with central lumen, valve core housing (3) upper end is provided with upper guide bush (5) and is compressed by valve gap (8); Sealing gasket (7) is provided with between described valve gap (8) and upper guide bush (5); Be provided with lower seal pad (2) between described valve core housing (3) bottom and valve body (1) inwall, and valve core housing (3) and valve body (1) are Spielpassung; Described spool (4) upper end is connected with valve rod (9).
2. a kind of High Pressure Difference Desuperheating water regulating valve according to claim 1, is characterized in that, described spool (4) is staggeredly equipped with 4 pairs of breach from top to bottom, and often pair of breach is opened on spool (4) relatively; Described valve core housing (3) inside is provided with the fixed groove matched with spool (4).
3. a kind of High Pressure Difference Desuperheating water regulating valve according to claim 1 and 2, it is characterized in that, offer the ledge structure for placing valve core housing (3) bottom described valve body (1) interior central lumen, valve body (1) upper-end surface is provided with the ledge structure for placing sealing gasket (2).
4. a kind of High Pressure Difference Desuperheating water regulating valve according to claim 1, it is characterized in that, described valve gap (8) center offers for the through hole through valve rod (9), described valve gap (8) inner via hole top is provided with step, described step is provided with Packing seat (10), valve gap (8) top is provided with filler pressing sleeve (12) and adopts hold-down grid (13) to compress; Filler (11) is filled with between described filler pressing sleeve (12) and Packing seat (10); (8) are also provided with lower supporting plate to described valve gap.
5. a kind of High Pressure Difference Desuperheating water regulating valve according to claim 1, is characterized in that, described upper sealing gasket (7) and lower seal pad (2) all adopt metal wound gasket.
6. a kind of High Pressure Difference Desuperheating water regulating valve according to claim 1, is characterized in that, described spool (4) adopts with valve rod and is threaded, and connecting end is provided with straight pin (6).
7. a kind of High Pressure Difference Desuperheating water regulating valve according to claim 1, is characterized in that, the valve seat of described spool (4) adopts linear sealing structure.
8. a kind of High Pressure Difference Desuperheating water regulating valve according to claim 1, is characterized in that, described spool (4) and valve core housing (3) adopt spool and the valve core housing of surface carburization process, and hardness is HV950-1100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721477.9U CN204985750U (en) | 2015-09-17 | 2015-09-17 | Poor warm water governing valve that subtracts of high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721477.9U CN204985750U (en) | 2015-09-17 | 2015-09-17 | Poor warm water governing valve that subtracts of high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985750U true CN204985750U (en) | 2016-01-20 |
Family
ID=55120118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520721477.9U Expired - Fee Related CN204985750U (en) | 2015-09-17 | 2015-09-17 | Poor warm water governing valve that subtracts of high pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296480A (en) * | 2018-11-21 | 2019-02-01 | 中国航发西安动力控制科技有限公司 | A kind of anti-pollution valve assembly |
-
2015
- 2015-09-17 CN CN201520721477.9U patent/CN204985750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296480A (en) * | 2018-11-21 | 2019-02-01 | 中国航发西安动力控制科技有限公司 | A kind of anti-pollution valve assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202152857U (en) | Double valve seat adjustable valve | |
| CN103147718B (en) | 20000psi cage type throttling valve | |
| CN203670846U (en) | Flat gate valve with under-pressure replace valve rod and balance rod | |
| CN101813192B (en) | High-flow adjustable ratio control valve | |
| CN204226809U (en) | A kind of stop valve structure | |
| CN204985750U (en) | Poor warm water governing valve that subtracts of high pressure | |
| CN204878747U (en) | Cage cover choke valve | |
| CN103821949A (en) | Cascading valve clack type adjusting valve | |
| CN103267139A (en) | Gate valve | |
| CN206246731U (en) | Three-way control valve | |
| CN103671942B (en) | Balanced type cut-off non-return regulates multipurpose valve | |
| CN202812249U (en) | Balanced type multilevel regulating valve of bidirectional-used valve seat | |
| CN205190883U (en) | High pressure plate valve | |
| CN203516884U (en) | Regulating valve with high erosion resistance | |
| CN104390049A (en) | Anticorrosion stuffing seal structure | |
| CN202691198U (en) | Gas pressure reducing valve | |
| CN204692615U (en) | A kind of embedded flexible valve seat flange for valve | |
| CN203009855U (en) | Internal-pressure self-sealing type valve cover stop valve | |
| CN209084070U (en) | A kind of gas-heating water heater triple valve | |
| CN203516772U (en) | Zero-leakage regulating valve | |
| CN203130038U (en) | 20000 psi cage-type throttle valve | |
| CN220770228U (en) | High-temperature high-pressure micro-pressure opening and closing lifting check valve | |
| CN203880130U (en) | Fixed ball valve for top assembling | |
| CN202629281U (en) | Pneumatic valve with oil cylinder control function | |
| CN204300391U (en) | A kind of two way sealed high-performance butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |