CN205331515U - Check valve is closed by force to seat formula to one side - Google Patents
Check valve is closed by force to seat formula to one side Download PDFInfo
- Publication number
- CN205331515U CN205331515U CN201521035447.9U CN201521035447U CN205331515U CN 205331515 U CN205331515 U CN 205331515U CN 201521035447 U CN201521035447 U CN 201521035447U CN 205331515 U CN205331515 U CN 205331515U
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- valve
- flap
- valves
- valve rod
- check
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Abstract
The utility model relates to a control unit among the pipe transport system, in particular to check valve is closed by force to seat formula to one side, including dismantling the valve body and the valve gap of connection, be provided with pivot and valve clack in the valve body, the valve clack can wind the pivot is rotated, still includes valve accuse module, valve accuse module contacts with the valve clack, and drive the valve clack and rotate, the slope is provided with sealed face in the valve body, the valve clack is mutually supported with sealed face. The valve clack slope sets up in the valve body, when mobile medium flows back in the valve body, the medium that the valve clack is flowed strikes about shaft rotation, the valve clack surface closely cooperates with sealed face, and the check valve is closed, play the effect that prevents the medium backward flow, set up valve accuse module simultaneously, when needs emergency shut -down check valve, the drive valve clack that can comparatively fast invite rotates, realize the quick closedown of check valve, the problem of the current formula of seat to one side check valve can not emergency shut -down the technique is solved, the utility model provides a check valve is closed by force to seat formula to one side.
Description
Technical field
This utility model relates to the control parts in pipe-line transportation system, closes by force check-valves particularly to a kind of slope block-type。
Background technology
Check-valves refers to that dependence medium itself flows and automatic open and close flap, it is used for the valve preventing medium from flowing backwards, being usually used in the pipeline of the conveying fluid media (medium) such as liquid, gas of the industries such as petrochemical industry, oil refining, chemical industry, common check-valves mainly includes swing type, lift, Double-disc type and slope block-type check-valves。
At present, on the exhaust pipeline of each Steam Turbine in power station and on the industrial piping system of other Large steam or water, frequently with slope block-type check-valves and lift check valve, it is used for preventing medium from flowing backwards and damages steam turbine or other power set。Adopt slope block-type check-valves mainly by its flap when stopping refluence medium, rotational travel is less, the impact that current are produced is less, make the advantage that water hammer is less, due to slope block-type check-valves only by the freely rotatable keying realizing valve of flap, can not emergency cut-off, medium can produce when check-valves does not completely close to flow backwards, the device that pipeline is connected causes damage, flap is at the critical localisation closed with open, owing to being limited only by the pressure of refluence medium, also easily occur producing flap impact the phenomenon of valve body due to the constantly fluctuation of flap media of both sides pressure, flap is caused to damage, valve body damages。And the lift check valve on the pipeline of steam or water is closed to realize flap, it is provided with valve rod and promotes flap, in order to prevent steam or water leakage, packing seal can be adopted at the link position of valve rod Yu valve gap, pretightning force is set on filler again, frictional force between valve rod and filler contact surface so will be made relatively big, and valve rod operation is more dumb, can not realize emergency cut-off when closed。
In sum, a kind of technical scheme solution existing slope block-type check-valves operation is needed at present badly more dumb, it is impossible to the defect of emergency cut-off。
Utility model content
The purpose of this utility model is in that to solve existing slope block-type check-valves can not the technical problem of emergency cut-off, it is provided that a kind of slope block-type closes by force check-valves。
To achieve these goals, the technical solution adopted in the utility model is:
A kind of slope block-type closes by force check-valves, including valve body and valve gap, described valve body and the dismountable connection of valve gap, rotating shaft and flap it is provided with in described valve body, described flap around described axis of rotation, can also include valve control module, and described valve control module contacts with flap, the tilted sealing surface that is provided with of described valve body, described flap and sealing surface cooperate。Flap is inclined in valve body, when the medium back flow of flowing in valve body, the media impingement that flap is flowed rotates around the axis, and flap surface and sealing surface closely cooperate, and closes check-valves, play the effect preventing medium back flow, simultaneously by arranging the drive flap rotation of valve control module, when needs emergency cut-off check-valves, only just can need to be rotated by drive flap faster by valve control module, realizing the quick closedown of check-valves, solving existing slope block-type check-valves can not the technical problem of emergency cut-off。
As the preferred version of the application, described valve control module includes interconnective drive system and the valve rod being arranged in valve body, and described valve rod contacts with flap, and described drive system drives described valve rod to move, and the movement of described valve rod can drive the rotation of flap。Moved by drive system band ovable valve stem, and then the flap of drive and valve stem contacts rotates around the axis, when drive system is in until duty, flap is freely rotatable around the shaft, play common non-return effect, when drive system is in running order, drive system band ovable valve stem promotes flap to rotate, can fast closing check valve, prevent valve body medium from refluxing, simultaneously also by the distance between drive system regulating valve stem and flap, make the maximum opening of flap be limited, there is certain effect regulating flow。
As the preferred version of the application, described drive system includes interconnective driving mechanism and throw-out lever, and described driving mechanism drives throw-out lever to move, and described throw-out lever is connected with valve rod。Moved by the throw-out lever band ovable valve stem of drive system, be conducive to check-valves maintenance and repair, when driving mechanism breaks down, only need to disconnect the connection between throw-out lever and valve rod, change driving mechanism, maintain easily and repair。
As the preferred version of the application, described driving mechanism is actuating device of atmospheric pressure, including pneumatic cylinder, is provided with spring in described pneumatic cylinder, and when pneumatic cylinder effect, spring is returned to free state by compressive state, promotes throw-out lever to move by the pressure of springback。Pneumatic cylinder is set as driving mechanism, inside sets spring, promote valve rod to move by spring force, make valve rod promote flap to rotate faster, it is achieved that the quick closedown of check-valves。
As the preferred version of the application, described driving mechanism is fluid pressure drive device, including hydraulic cylinder, is provided with spring in described hydraulic cylinder, and when hydraulic cylinder effect, spring is returned to free state by compressive state, promotes throw-out lever to move by the pressure of springback。Hydraulic cylinder is set as driving mechanism, inside sets spring, promote valve rod to move by spring force, make valve rod promote flap to rotate faster, it is achieved that the quick closedown of check-valves。
As the preferred version of the application, described throw-out lever one end is provided with contiguous block, and described valve rod is connected with throw-out lever by contiguous block。By contiguous block, throw-out lever and valve rod are attached, are conducive to the dismounting of valve rod and throw-out lever and are connected, facilitating maintenance and the maintenance of drive system, also by controlling the position of contiguous block and then controlling the movement of valve rod。
As the preferred version of the application, described flap being provided with limited block, described valve rod one end contacts with limited block。The setting of limited block, makes valve rod easier contact with flap, and when valve rod one end contacts with limited block, flap is pressed on sealing surface by valve rod top, closure of check ring。
As the preferred version of the application, being provided with fairlead in described valve gap, described valve rod runs through valve gap and fairlead simultaneously, and described valve rod can slide along fairlead。Fairlead is set, makes valve rod can only move along fairlead, it is ensured that valve rod finally can only contact with the limited block on flap under driving mechanism drives, it is ensured that the normal operation of check-valves。
As the preferred version of the application, described valve gap being provided with black box, described black box includes airtight and watertight padding, filler briquetting and filler pressing sleeve, and described valve rod runs through filler briquetting, filler pressing sleeve, airtight and watertight padding, valve gap and fairlead simultaneously。Include the black box of airtight and watertight padding by arranging, filler pressing sleeve and filler briquetting be set simultaneously airtight and watertight padding is compressed, it is ensured that sealing reliable, when valve rod promotes flap emergency cut-off, not easily due in valve body the increase of pressure and produce leakage。
In sum, owing to have employed technique scheme, the application provides the benefit that:
1, by arranging valve control module, flap can be driven to rotate around the axis, it is achieved the emergency cut-off of check-valves, only just can need to be rotated by drive flap faster by valve control module, realizing the quick closedown of check-valves, solving existing slope block-type check-valves can not the technical problem of emergency cut-off。
2, flap is freely rotatable around the shaft, and flap surface closely cooperates with the sealing surface being obliquely installed in valve body, closes check-valves, plays the effect preventing medium back flow。
Accompanying drawing explanation
Fig. 1 is that slope block-type of the present utility model closes by force check valve structure schematic diagram。
Accompanying drawing labelling
1-valve body, 11-sealing surface, 2-flap, 21-limited block, 3-rotating shaft, 4-valve rod, 5-valve gap, 51-fairlead, 6-black box, 61-airtight and watertight padding, 62-filler pressing sleeve, 63-filler briquetting, 7-contiguous block, 8-travel switch, 9-drive system, 91-spring, 92-driving mechanism, 93-throw-out lever。
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and the specific embodiments, this utility model is further elaborated。Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model。
Embodiment 1
As shown in Figure 1, a kind of slope block-type closes by force check-valves, valve body 1 and valve gap 5 including dismountable connection, rotating shaft 3 and flap 2 it is provided with in described valve body 1, described valve body 1 is tilted is provided with sealing surface 11, described flap 2 cooperates with sealing surface 11, described flap 2 can rotate around described rotating shaft 3, realize the opening and closing of valve body 1 internal channel, valve body 1 is connected to valve control module, described valve control module includes interconnective drive system 9 and the valve rod 4 being arranged in valve body 1, described drive system 9 includes interconnective driving mechanism 92 and throw-out lever 93, described driving mechanism 92 drives throw-out lever 93 to move, described throw-out lever 93 one end is provided with contiguous block 7, described valve rod 4 is connected with throw-out lever 93 by contiguous block 7, described drive system 9 also includes travel switch 8, described travel switch 8 contacts with contiguous block 7, contiguous block 7 displacement is controlled by travel switch 8, and then control the displacement of valve rod 4, described flap 2 is provided with limited block 21, it is provided with fairlead 51 in described valve gap 5, described valve rod 4 runs through valve gap 5 and fairlead 51 simultaneously, described valve rod 4 can slide along fairlead 51, described driving mechanism 92 is pneumatic cylinder or hydraulic cylinder, spring 91 it is provided with inside it, when driving mechanism 92 action, throw-out lever 93 is promoted to move by the spring force of spring 9, and then promote valve rod 4 to move, described valve rod 4 one end is made to contact with limited block 21, realize the quick closedown of check-valves。
During normal operation, driving mechanism 92 drives and moves on throw-out lever 93, valve rod 4 and limited block 21 not in contact with, flap 2 can be 3 freely rotatable around the shaft, when the medium back flow of flowing in valve body 1, the media impingement that flap 2 is flowed 3 rotates around the shaft, closely cooperate with the sealing surface 11 being obliquely installed in valve body 1, make closure of check ring, realize common non-return effect, when check-valves cuts out by needs by force, start driving mechanism 92, spring 91 in driving mechanism 92 returns to free state from compressive state, bigger spring force promotes throw-out lever 93 quickly to move, and then with the limited block 21 on ovable valve stem 4 movable top pressure valve lobe 2, make closure of check ring, realize the strong pass of check-valves。
Preferably, described valve gap 5 being provided with black box 6, described black box 6 includes airtight and watertight padding 61, filler briquetting 63 and filler pressing sleeve 62, and described valve rod 4 runs through filler briquetting 63, filler pressing sleeve 62, airtight and watertight padding 61, valve gap 5 and fairlead 51 simultaneously。Include the black box 6 of airtight and watertight padding 61 by arranging, filler pressing sleeve 62 be set simultaneously and airtight and watertight padding 61 is compressed by filler briquetting 63, it is ensured that sealing reliable, when valve rod 4 promotes flap 2 emergency cut-off, not easily due in valve body 1 increase of pressure and produce leakage。
Above example only in order to this utility model is described and and technical scheme described by unrestricted this utility model, although this utility model is had been carried out describing in detail by this specification with reference to the above embodiments, but this utility model is not limited to above-mentioned detailed description of the invention, therefore any this utility model modified or equivalent replaces, and all are without departing from the technical scheme of the spirit and scope of utility model and improvement thereof, it all should be encompassed in right of the present utility model。
Claims (9)
1. a slope block-type closes by force check-valves, including valve body and valve gap, described valve body and the dismountable connection of valve gap, be provided with rotating shaft and flap, be provided with rotating shaft and flap in described valve body in described valve body, described flap can around described axis of rotation, it is characterized in that, also including valve control module, described valve control module contacts with flap, the tilted sealing surface that is provided with of described valve body, described flap and sealing surface cooperate。
2. slope block-type as claimed in claim 1 closes by force check-valves, it is characterized in that: described valve control module includes interconnective drive system and the valve rod being arranged in valve body, described valve rod contacts with flap, described drive system drives described valve rod to move, and the movement of described valve rod can drive the rotation of flap。
3. slope block-type as claimed in claim 2 closes by force check-valves, it is characterised in that: described drive system includes interconnective driving mechanism and throw-out lever, and described driving mechanism drives throw-out lever to move, and described throw-out lever is connected with valve rod。
4. slope block-type as claimed in claim 3 closes by force check-valves, it is characterized in that: described driving mechanism is actuating device of atmospheric pressure, including pneumatic cylinder, it is provided with spring in described pneumatic cylinder, when pneumatic cylinder effect, spring is returned to free state by compressive state, promotes throw-out lever to move by the pressure of springback。
5. slope block-type as claimed in claim 3 closes by force check-valves, it is characterized in that: described driving mechanism is fluid pressure drive device, including hydraulic cylinder, it is provided with spring in described hydraulic cylinder, when hydraulic cylinder effect, spring is returned to free state by compressive state, promotes throw-out lever to move by the pressure of springback。
6. the slope block-type as described in claim 4 or 5 closes by force check-valves, it is characterised in that: described throw-out lever one end is provided with contiguous block, and described valve rod is connected with throw-out lever by contiguous block。
7. slope block-type as claimed in claim 6 closes by force check-valves, it is characterised in that: being provided with limited block on described flap, described valve rod one end contacts with limited block。
8. slope block-type as claimed in claim 7 closes by force check-valves, it is characterised in that: being provided with fairlead in described valve gap, described valve rod runs through valve gap and fairlead simultaneously, and described valve rod can slide along fairlead。
9. slope block-type as claimed in claim 8 closes by force check-valves, it is characterized in that: described valve gap is provided with black box, described black box includes airtight and watertight padding, filler briquetting and filler pressing sleeve, and described valve rod runs through filler briquetting, filler pressing sleeve, airtight and watertight padding, valve gap and fairlead simultaneously。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521035447.9U CN205331515U (en) | 2015-12-14 | 2015-12-14 | Check valve is closed by force to seat formula to one side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521035447.9U CN205331515U (en) | 2015-12-14 | 2015-12-14 | Check valve is closed by force to seat formula to one side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331515U true CN205331515U (en) | 2016-06-22 |
Family
ID=56212736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521035447.9U Expired - Fee Related CN205331515U (en) | 2015-12-14 | 2015-12-14 | Check valve is closed by force to seat formula to one side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331515U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678399A (en) * | 2016-12-29 | 2017-05-17 | 凯喜姆阀门有限公司 | Multi-functional gate-check valve |
| CN109356118A (en) * | 2018-11-21 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Eulittoral zone keeps off discharge structure |
-
2015
- 2015-12-14 CN CN201521035447.9U patent/CN205331515U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678399A (en) * | 2016-12-29 | 2017-05-17 | 凯喜姆阀门有限公司 | Multi-functional gate-check valve |
| CN106678399B (en) * | 2016-12-29 | 2019-03-05 | 凯喜姆阀门有限公司 | A kind of multi-functional lock stops valve |
| CN109356118A (en) * | 2018-11-21 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Eulittoral zone keeps off discharge structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Check valve is closed by force to seat formula to one side Effective date of registration: 20170125 Granted publication date: 20160622 Pledgee: The Great Wall West Bank Bank of China Deyang hi tech branch Pledgor: Sichuan Naite Valve Co., Ltd. Registration number: 2017990000081 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20181214 |