CN104964045A - Sliding control double-element valve - Google Patents
Sliding control double-element valve Download PDFInfo
- Publication number
- CN104964045A CN104964045A CN201510419814.3A CN201510419814A CN104964045A CN 104964045 A CN104964045 A CN 104964045A CN 201510419814 A CN201510419814 A CN 201510419814A CN 104964045 A CN104964045 A CN 104964045A
- Authority
- CN
- China
- Prior art keywords
- valve
- slippage
- spool
- double
- sliding
- 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.)
- Granted
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 31
- 238000003032 molecular docking Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002585 base Substances 0.000 description 25
- 239000013064 chemical raw material Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention provides a sliding control double-element valve. The sliding control double-element valve comprises a double-element valve body and a sliding double-control valve handle. The double-element valve body is of a tubular structure, rotary valve elements are arranged at the two ends of the double-element valve body, and the rotary valve elements are provided with rotation drive sleeves. The sliding double-control valve handle comprises a valve handle sliding base frame, a sliding valve handle seat and a clutch type valve rod. The valve handle sliding base frame is connected with the outer wall of the double-element valve body and provided with a sliding rail, the sliding valve handle seat is installed on the valve handle sliding base frame and is in sliding fit with the sliding rail, the bottom and the top of the clutch type valve rod are provided with a valve element rotation drive head and a wheel type valve handle respectively, and the valve element rotation drive head is sleeved with a valve rod sleeve and can slide up and down. The two valve elements are installed in an inner cavity of the double-element valve body, when the commonly-used valve element is damaged and chemical raw materials leak, a delivery pipe can be cut off only by opening the standby valve element, and the situation that the chemical raw materials of a whole reaction still are wasted and the environment is polluted is avoided. Thus, the sliding control double-element valve is reasonable in structure, convenient to control and capable of effectively improving use reliability.
Description
Technical field
The present invention relates to a kind of valve, particularly relate to a kind of sliding control twin-core valve.
Background technique
In the factory producing industrial chemicals, conventional various reactor carries out chemical polymerization to chemical raw material, reactor is equipped with the various valve such as feeding valve, discharge valve, and these valves only have a spool, in use, not only to bear expansive force and the contractile force of High Temperature High Pressure, also to bear the corrosion of the chemical substances such as acid, alkali, salt, therefore, often occur because valve damages the situation of leaking chemical raw material, not only serious environment pollution, returns enterprise and causes larger economic loss.
Summary of the invention
In order to solve prior art valve be damaged leakage can not closing problem in time, the present invention aims to provide a kind of sliding control twin-core valve, this valve is provided with two spools, when one of them spool is damaged the situation of leaking, as long as enable another spool, just can throttle down, chemical raw material can not be there is and to leak situation about running off.
In order to achieve the above object, the present invention adopts following technological scheme, a kind of sliding control twin-core valve, is characterized in that, described sliding control twin-core valve comprises double spool valve body and slippage double controlling valve handle, described double spool valve body is cylinder structure and its two ends are all provided with rotary-type spool, described rotary-type spool is provided with and turns sleeve pipe, described slippage double controlling valve is comprising valve slippage pedestal, slippage valve tube base and clutch type valve rod, described valve is connected slippage pedestal and is provided with sliding rail with double spool valve outer wall, described slippage valve tube base is arranged on valve slippage pedestal is slidably matched with sliding rail, valve rod sleeve pipe is provided with at slippage valve tube base top, described clutch type stem bottom and top are respectively equipped with spool and turn head and wheel-type valve handle, described spool turns headgear and to be contained in valve rod sleeve pipe and can to slide up and down, described spool turns head and turns sleeve pipe clutch rotatable engagement.
This preferred embodiment also has following technical characteristics:
Described double spool body cavity is provided with pipeline type valve port, described rotary-type spool is arranged on pipeline type valve port end and is provided with positioning rotating shaft, described positioning rotating shaft is outside to double spool valve body from the horizontal break-through of pipeline type valve port, the described sleeve pipe that turns is arranged on positioning rotating shaft end, arranges abutted flange or docking screw socket at double spool valve body two ends.
Slippage pedestal is frame-type structure with described valve and its both sides are all provided with sliding rail, described slippage valve tube base crossbearer at valve slippage pedestal top, described in turn sleeve pipe and be arranged on valve slippage pedestal two ends.
Described slippage valve tube base both sides are all provided with track clamp, and described track clamp matches with sliding rail, and described valve rod sleeve pipe to be arranged in the middle part of slippage valve tube base and to communicate with slippage valve tube base bottom surface.
Slippage driving mechanism is provided with between slippage pedestal and slippage valve tube base at valve, described slippage driving mechanism comprises profile of tooth slideway and slippage runner, described profile of tooth installation of slide track is in sliding rail side, and described slippage runner to be arranged on track clamp and to be matched with flute profile track by gear.
It is non-circular structure that described spool turns head, described in turn cannula center and be provided with the non-circular socket turning head with spool and match.
Clutch type valve rod and valve rod sleeve pipe are respectively equipped with locating notch and draw-in groove latch, and described draw-in groove latch two ends are respectively equipped with draw-in groove ball and pull pin draws handle, and described draw-in groove ball coordinates with locating notch, in the middle part of draw-in groove latch, be provided with latch spring.
Described clutch type valve rod is provided with disengaging spring, and described disengaging spring is arranged between wheel-type valve handle and valve rod sleeve pipe.
The present embodiment installs two spools at double spool body cavity, when conventional spool damages and leaks chemical raw material, as long as enable spool for subsequent use, just can cut off carrier pipe, prevent the situation of wasting whole reactor chemical raw material and befouling environment.Therefore, this sliding control twin-core valve mechanism is reasonable, and manipulation is convenient, effectively can improve the operational safety of valve.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the assembly structure schematic diagram of one embodiment of the invention.
In figure, sequence number represents respectively: 10. double spool valve body, 11. rotary-type spools, and 12. turn sleeve pipe, 13. pipeline type valve ports, 20. slippage double controlling valve handles, 21. valves slippage pedestal, 210. sliding rails, 211. profile of tooth slideways, 22. slippage valve tube bases, 220. valve rod sleeve pipes, 221. track clamps, 222. slippage runners, 23. clutch type valve rods, 230. spools turn head, 231. wheel-type valve handles, 24. locating notches, 25. draw-in groove latches, 250. draw-in groove balls, 251. pull pin draws handle, 252. latch springs, 26. depart from spring.
Embodiment
See accompanying drawing 1, the sliding control twin-core valve of the present embodiment comprises double spool valve body 10 and slippage double controlling valve 20, described double spool valve body 10 is in cylinder structure and its two ends are all provided with rotary-type spool 11, described rotary-type spool 11 is provided with and turns sleeve pipe 12, described slippage double controlling valve comprises valve slippage pedestal 21 20, slippage valve tube base 22 and clutch type valve rod 23, described valve is connected slippage pedestal 21 and is provided with sliding rail 210 with double spool valve body 10 outer wall, described slippage valve tube base 22 is arranged on valve slippage pedestal 21 is slidably matched with sliding rail 210, valve rod sleeve pipe 220 is provided with at slippage valve tube base 22 top, bottom described clutch type valve rod 23 and top be respectively equipped with spool turn 230 and wheel-type valve 231, described spool turns 230 and to be sleeved in valve rod sleeve pipe 220 and can to slide up and down, described spool turn 230 with turn sleeve pipe 12 clutch rotatable engagement.
The sliding control twin-core valve installation of this example is on the carrier pipe of reactor, and two spools can be opened and blanked-off pipe channel type valve port 13, controls carrier pipe and whether carries chemical raw material.During concrete enforcement, the spool of conventional sliding control twin-core valve export end controls the chemical raw materials such as acid-alkali salt and inputs or outputs in reactor, when the spool of outlet end damages and the situation of leaking chemical raw material occurs, as long as close the spool of sliding control twin-core valve inlet end, just energy blanked-off pipe channel type valve port 13, cut off carrier pipe conveying chemical raw material, the situation of whole reactor chemical raw material and befouling environment can not be wasted.
Slippage double controlling valve is arranged on 20 on the tube wall of double spool valve body 10, can easily slidably reciprocate, and both can control the spool of double spool valve body 10 entrance point, can control again the spool of double spool valve body 10 outlet end.
Described double spool valve body 10 inner chamber is provided with pipeline type valve port 13, described rotary-type spool 11 is arranged on pipeline type valve port 13 end and is provided with positioning rotating shaft, described positioning rotating shaft is outside from the horizontal break-through of pipeline type valve port 13 to double spool valve body 10, the described sleeve pipe 12 that turns is arranged on positioning rotating shaft end, arranges abutted flange or docking screw socket at double spool valve body 10 two ends.
The sliding control twin-core valve of this example is arranged on the carrier pipe of reactor by abutted flange or docking screw socket, when specifically implementing, is provided with abutted flange or docking screw socket according to carrier pipe, selects sliding control twin-core valve that to match with it.
Double spool valve body 10 is connected by the carrier pipe of abutted flange or docking screw socket reactor, no matter closes the rotary-type spool 11 of entrance point or outlet end, can cut off carrier pipe by blanked-off pipe channel type valve port 13, material can not be inputed or outputed in reactor.During concrete enforcement, the rotary-type spool 11 of conventional outlet end controls carrier pipe, when only having the spool of outlet end to damage concurrent biochemical raw material leakage, just can start the spool blanked-off pipe channel type valve port 13 of entrance point, stop chemical raw material to leak and run off.
Rotary-type spool 11 comprises ball-type spool or template spool, is arranged in pipeline type valve port 13 by locating axle seat, opens in a rotating manner or blanked-off pipe channel type valve port 13, and clutch type valve rod 23 can easily rotate by driven rotary type spool 11 by turning sleeve pipe 12.
State valve slippage pedestal 21 in frame-type structure and its both sides are all provided with sliding rail 210, described slippage valve tube base 22 crossbearer at valve slippage pedestal 21 top, described in turn sleeve pipe 12 and be arranged on valve slippage pedestal 21 two ends.
The valve of frame-type structure coordinates by two sliding rails 210 slippage pedestal 21 with slippage valve tube base 22, slippage valve tube base 22 is made firmly to be arranged on valve slippage pedestal 21 top, and can laterally slide flexibly, when slippage valve tube base 22 slides into double spool valve body 10 entrance point, clutch type valve rod 23 drives the rotary-type spool 11 of entrance point to rotate, when slippage valve tube base 22 slides into double spool valve body 10 outlet end, clutch type valve rod 23 drives the rotary-type spool 11 of outlet end to rotate.
During concrete enforcement, valve also can be arranged to the rod-type structure of single sliding rail 210 slippage pedestal 21.
Described slippage valve tube base 22 both sides are all provided with track clamp 221, and described track clamp 221 matches with sliding rail 210, and described valve rod sleeve pipe 220 to be arranged in the middle part of slippage valve tube base 22 and to communicate with slippage valve tube base 22 bottom surface.
Spool turns 230 and is sleeved in valve rod sleeve pipe 220, clutch type valve rod 23 is firmly arranged in slippage valve tube base 22, and can easily slides up and down.During clutch type valve rod 23 slide downward, spool is turned a 230 ejector valve rod bush 220 to coordinate with rotary-type spool 11, during clutch type valve rod 23 upward sliding, spool is turned 230 retraction valve rod sleeve pipe 220 inner chamber, slippage valve tube base 22 can easily laterally be slided.
Slippage driving mechanism is provided with between slippage pedestal 21 and slippage valve tube base 22 at valve, described slippage driving mechanism comprises profile of tooth slideway 211 and slippage runner 222, described profile of tooth slideway 211 is arranged on sliding rail 210 side, and described slippage runner 222 to be arranged on track clamp 221 and to be matched with profile of tooth slideway 211 by gear.
Slippage driving mechanism makes operator can easily control the laterally slip of slippage valve tube base 22, when specifically implementing, also slippage valve tube base 22 can be driven to run by the slippage driving mechanism of other structure.
Described spool turns 230 in non-circular structure, described in turn sleeve pipe 12 center and be provided with and turn a 230 non-circular socket matched with spool.
The spool of non-circular structure turns 230 and both can easily insert or extract in non-circular socket, can drive again to turn sleeve pipe 12 and rotate.
Clutch type valve rod 23 and valve rod sleeve pipe 220 are respectively equipped with locating notch 24 and draw-in groove latch 25, described draw-in groove latch 25 two ends are respectively equipped with draw-in groove ball 250 and pull pin draws 251, described draw-in groove ball 250 coordinates with locating notch 24, is provided with latch spring 252 in the middle part of draw-in groove latch 25.
Spool turns 230 and is inserted in when turning sleeve pipe 12 inner chamber, and draw-in groove latch 25 inserts locating notch 24, and restriction clutch type valve rod 23 can only rotate, and can not slide up and down.As long as draw-in groove latch 25 is extracted locating notch 24, clutch type valve rod 23 just reverts to and can slide up and down.
Draw-in groove ball 250 is stuck in locating notch 24 and rolls, and can limit clutch type valve rod 23 can not slide up and down, and does not hinder again it to rotate.The resilient force draw-in groove latch 25 of latch spring 252 slides to valve rod sleeve pipe 220 central direction, as long as to slide down to locating notch 24 concordant with draw-in groove latch 25 for clutch type valve rod 23, draw-in groove latch 25 will insert in locating notch 24 automatically.
Described clutch type valve rod 23 is provided with and departs from spring 26, and described disengaging spring 26 is arranged on wheel-type valve between 231 and valve rod sleeve pipe 220.
Depart from resilient force clutch type valve rod 23 upward sliding all the time of spring 26, make spool turn 230 and be often in the state departing from and turn sleeve pipe 12, only have clutch type valve rod 23 toward pressing down, spool turns 230 and just can be inserted in and turn in sleeve pipe 12, draw and make draw-in groove ball 250 depart from locating notch 24 as long as pulling pulls pin 251, clutch type valve rod 23 will upward sliding automatically, and is with movable valve plug to turn 230 to depart from and turn sleeve pipe 12.
In sum: the present embodiment solve prior art valve be damaged leakage can not closing problem in time, provide a kind of sliding control twin-core valve that can replace existing product.
Claims (8)
1. a sliding control twin-core valve, is characterized in that; described sliding control twin-core valve comprises double spool valve body (10) and slippage double controlling valve handle (20), described double spool valve body (10) is in cylinder structure and its two ends are all provided with rotary-type spool (11), described rotary-type spool (11) is provided with and turns sleeve pipe (12), described slippage double controlling valve comprises valve slippage pedestal (21) (20), slippage valve tube base (22) and clutch type valve rod (23), described valve is connected slippage pedestal (21) and is provided with sliding rail (210) with double spool valve body (10) outer wall, described slippage valve tube base (22) is arranged on valve and slippage pedestal (21) is gone up and is slidably matched with sliding rail (210), valve rod sleeve pipe (220) is provided with at slippage valve tube base (22) top, described clutch type valve rod (23) bottom and top are respectively equipped with spool and turn head (230) and wheel-type valve handle (231), described spool turns head (230) and to be sleeved in valve rod sleeve pipe (220) and can to slide up and down, described spool turns head (230) and turns sleeve pipe (12) clutch rotatable engagement.
2. a kind of sliding control twin-core valve according to claim 1, it is characterized in that: described double spool valve body (10) inner chamber is provided with pipeline type valve port (13), described rotary-type spool (11) is arranged on pipeline type valve port (13) end and is provided with positioning rotating shaft, described positioning rotating shaft is outside from pipeline type valve port (13) horizontal break-through to double spool valve body (10), the described sleeve pipe (12) that turns is arranged on positioning rotating shaft end, arranges abutted flange or docking screw socket at double spool valve body (10) two ends.
3. a kind of sliding control twin-core valve according to claim 1, it is characterized in that: described valve slippage pedestal (21) in frame-type structure and its both sides are all provided with sliding rail (210), described slippage valve tube base (22) crossbearer at valve slippage pedestal (21) top, described in turn sleeve pipe (12) and be arranged on valve slippage pedestal (21) two ends.
4. a kind of sliding control twin-core valve according to claim 1, it is characterized in that: described slippage valve tube base (22) both sides are all provided with track clamp (221), described track clamp (221) is matched with sliding rail (210), and described valve rod sleeve pipe (220) is arranged on slippage valve tube base (22) middle part and communicates with slippage valve tube base (22) bottom surface.
5. a kind of sliding control twin-core valve according to claim 4, it is characterized in that: be provided with slippage driving mechanism at valve between slippage pedestal (21) and slippage valve tube base (22), described slippage driving mechanism comprises profile of tooth slideway (211) and slippage runner (222), described profile of tooth slideway (211) is arranged on sliding rail (210) side, and described slippage runner (222) is arranged on track clamp (221) and goes up and matched with profile of tooth slideway (211) by gear.
6. a kind of sliding control twin-core valve according to claim 1, it is characterized in that: described spool turns head (230) in non-circular structure, described in turn sleeve pipe (12) center and be provided with the non-circular socket turning head (230) with spool and match.
7. a kind of sliding control twin-core valve according to claim 1, it is characterized in that: on clutch type valve rod (23) and valve rod sleeve pipe (220), be respectively equipped with locating notch (24) and draw-in groove latch (25), described draw-in groove latch (25) two ends are respectively equipped with draw-in groove ball (250) and pull pin draws (251), described draw-in groove ball (250) coordinates with locating notch (24), is provided with latch spring (252) at draw-in groove latch (25) middle part.
8. a kind of sliding control twin-core valve according to claim 1, it is characterized in that: described clutch type valve rod (23) is provided with and departs from spring (26), described disengaging spring (26) is arranged on wheel-type valve between (231) and valve rod sleeve pipe (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510419814.3A CN104964045B (en) | 2015-07-16 | 2015-07-16 | A kind of sliding control twin-core valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510419814.3A CN104964045B (en) | 2015-07-16 | 2015-07-16 | A kind of sliding control twin-core valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104964045A true CN104964045A (en) | 2015-10-07 |
| CN104964045B CN104964045B (en) | 2017-04-05 |
Family
ID=54218096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510419814.3A Active CN104964045B (en) | 2015-07-16 | 2015-07-16 | A kind of sliding control twin-core valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104964045B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984131A (en) * | 2021-02-20 | 2021-06-18 | 浙江伯特利科技股份有限公司 | Single-seat bidirectional metal sealing valve seat |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0364108A1 (en) * | 1988-09-19 | 1990-04-18 | Keystone International Holdings Corp. | Transmission assembly for use with double block and bleed system |
| CN2348195Y (en) * | 1998-06-29 | 1999-11-10 | 张正良 | Leakless water valve |
| CN103122771A (en) * | 2013-03-19 | 2013-05-29 | 太原理工大学 | Mine tunnel compressed air sequent conveying device and conveying method thereof |
| CN203453520U (en) * | 2013-08-16 | 2014-02-26 | 福托伟阀门(上海)有限公司 | Dry-type coupling valve |
| CN104500789A (en) * | 2014-12-02 | 2015-04-08 | 李溢伟 | Backflow-proof double-core one-piece valve |
| CN204784766U (en) * | 2015-07-16 | 2015-11-18 | 衢州市依科达节能技术有限公司 | Two core valves of control of sliding |
-
2015
- 2015-07-16 CN CN201510419814.3A patent/CN104964045B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0364108A1 (en) * | 1988-09-19 | 1990-04-18 | Keystone International Holdings Corp. | Transmission assembly for use with double block and bleed system |
| CN2348195Y (en) * | 1998-06-29 | 1999-11-10 | 张正良 | Leakless water valve |
| CN103122771A (en) * | 2013-03-19 | 2013-05-29 | 太原理工大学 | Mine tunnel compressed air sequent conveying device and conveying method thereof |
| CN203453520U (en) * | 2013-08-16 | 2014-02-26 | 福托伟阀门(上海)有限公司 | Dry-type coupling valve |
| CN104500789A (en) * | 2014-12-02 | 2015-04-08 | 李溢伟 | Backflow-proof double-core one-piece valve |
| CN204784766U (en) * | 2015-07-16 | 2015-11-18 | 衢州市依科达节能技术有限公司 | Two core valves of control of sliding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984131A (en) * | 2021-02-20 | 2021-06-18 | 浙江伯特利科技股份有限公司 | Single-seat bidirectional metal sealing valve seat |
| CN112984131B (en) * | 2021-02-20 | 2022-12-27 | 浙江伯特利科技股份有限公司 | Single-seat bidirectional metal sealing valve seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104964045B (en) | 2017-04-05 |
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