CN106764004A - Lever pressure difference safety regulating valve - Google Patents
Lever pressure difference safety regulating valve Download PDFInfo
- Publication number
- CN106764004A CN106764004A CN201710105981.XA CN201710105981A CN106764004A CN 106764004 A CN106764004 A CN 106764004A CN 201710105981 A CN201710105981 A CN 201710105981A CN 106764004 A CN106764004 A CN 106764004A
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- China
- Prior art keywords
- chamber
- connector
- valve
- pressure difference
- regulating valve
- 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.)
- Pending
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 41
- 230000004888 barrier function Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 25
- 230000000694 effects Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a kind of lever pressure difference safety regulating valve, belong to valve technology field.It solves the problems, such as that existing regulating valve high cost, security are poor.This lever pressure difference safety regulating valve includes valve body, with inlet channel and outlet passageway, pressure regulation cut-out chamber is formed with outlet passageway；Bonnet, is covered on valve body and is formed with chamber with valve body；Barrier film, sealing is located between valve body and bonnet and chamber is divided into inner cavity chamber and exocoel, inner cavity chamber to be communicated with pressure regulation cut-out chamber by barrier film；Connector, located at diaphragm center, and can drive connector to be vertically moved up or down when inside and outside chamber produces draught head by barrier film；Swing arm unit, is connected in inner cavity chamber and with connector；Pressure regulating dump valve, cuts off at chamber located at pressure regulation and connects inlet channel and outlet passageway, and pressure regulating dump valve is provided with the pressure regulation valve head and valve rod being connected, and valve rod is connected with swing arm unit.The present invention has the advantages that low cost, safe.
Description
Technical field
The invention belongs to valve technology field, and in particular to a kind of lever pressure difference safety regulating valve.
Background technology
, there is following lacking in the same type gas pressure regulator used in existing daily life and industrial production
Fall into：1st, in certain parameter area, pressure-bearing cavity is big, and barrier film compression area is big, and service life is short, and security risk is high；2nd, make
High cost is made, use cost is high；3rd, volume is big, increases auxiliary facility cost, increases and takes useful space volume.
The content of the invention
The purpose of the present invention is directed to existing technology and there is above mentioned problem, it is proposed that one kind can be easy on gas piping
The lever that the automatic Regulation throttling and unexpected superpressure, under-voltage and automatic safe of stopping the supple of gas or steam that installation is integrated are closed (consumed energy without outside)
Pressure difference safety regulating valve.
The purpose of the present invention can be realized by following technical proposal：A kind of lever pressure difference safety regulating valve, its feature
It is, including
Valve body, with inlet channel and outlet passageway, is formed with pressure regulation cut-out chamber in outlet passageway；
Bonnet, is covered on valve body and is formed with chamber with valve body；
Barrier film, sealing is located between valve body and bonnet and chamber is divided into inner cavity chamber and exocoel by barrier film, inner cavity chamber with
Pressure regulation cut-out chamber communicates；
Connector, located at diaphragm center, and can drive connector vertical when inside and outside chamber produces draught head by barrier film
Lifting；
Swing arm unit, is connected in inner cavity chamber and with connector；
Pressure regulating dump valve, cuts off at chamber located at pressure regulation and connects inlet channel and outlet passageway, and pressure regulating dump valve is provided with
The pressure regulation valve head and valve rod being connected, valve rod are connected with swing arm unit, and pressure regulation valve head can be controlled to move axially and lead to air inlet
Road is in outlet passageway and connects or dissengaged positions.
In above-mentioned lever pressure difference safety regulating valve, swing arm unit includes master rocker, transition arm and secondary-rocker, and master shakes
Arm is articulated and connected and be connected with valve rod in valve body and master rocker one end, and the other end is provided with magnetic part and can be attracting with transition arm, and
When the draught head that inside and outside chamber is produced is more than magnetic part suction, master rocker is disconnected with transition arm, and secondary-rocker one end is hinged
It is connected in valve body, the other end is connected with transition arm, transition arm middle part is connected with connector.
In above-mentioned lever pressure difference safety regulating valve, contiguous block is hingedly connected with transition arm one end, secondary-rocker is worn
On contiguous block, auxiliary spring is arranged with secondary-rocker, and auxiliary spring can be compressed when secondary-rocker swings.
In above-mentioned lever pressure difference safety regulating valve, deep-slotted chip breaker is offered on transition arm, be equipped with deep-slotted chip breaker
Connecting shaft and connecting shaft is fixed on connector.
In above-mentioned lever pressure difference safety regulating valve, there is groove in the other end of master rocker and groove is located at transition
Arm middle part lower section, above-mentioned magnetic part is located in groove.
In above-mentioned lever pressure difference safety regulating valve, be arranged with main spring on connector, main spring one end against
On barrier film, the other end is resisted against on bonnet.
In above-mentioned lever pressure difference safety regulating valve, connector includes the upper connector and lower connector that are fixedly connected with,
Upper connector be located at exocoel in and main spring be sheathed on connector, lower connector be located at inner cavity chamber in and with above-mentioned company
Spindle is connected.
In above-mentioned lever pressure difference safety regulating valve, upper connector is provided with loose collar, has two pairs on bonnet
Claim the limited post for setting, secondary spring is arranged with limited post and secondary spring one end is resisted against on loose collar.
In the above-mentioned lever pressure difference safety regulating valve, also there is connection inlet channel and outlet passageway in valve body
Filter chamber, is provided with filter in filter chamber.
In above-mentioned lever pressure difference safety regulating valve, articulation is provided with inlet channel.
Compared with prior art, the present invention has advantages below：
1st, install magnetic-clutching body additional in master rocker beam position, original space is not increased.
The 2nd, independent pressure regulation cut-out cavity is set, and backspacing a position is counter to fill master rocker, front interior cavity space of soaring.
3rd, install adjustable high-performance articulation in inlet channel additional, reduce auxiliary facility part, facilitate installation and sell
Construction is safeguarded afterwards.
4th, in an equipment inner chamber point space, chamber is cut off close to pressure regulation, installs a filter additional as last road of import source of the gas
Filtering chamber, it is ensured that pressure regulation, the long-term normal work of cut-out two valve ports energy, extends maintenance period, improves safe handling rate, and reduction makes
Use cost.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of valve body in the present invention.
Fig. 3 is the structural representation of swing arm unit in the present invention.
Fig. 4 is the configuration schematic diagram of swing arm unit in the present invention.
In figure, 1, valve body；1a, inlet channel；1b, outlet passageway；1c, pressure regulation cut-out chamber；1d, inner cavity chamber；1e, exocoel
Room；1f, filter chamber；2nd, bonnet；2a, limited post；3rd, barrier film；4th, connector；4a, upper connector；4b, lower connector；5th, pressure regulation
Stop valve；6th, pressure regulation valve head；7th, valve rod；8th, main spring；9th, master rocker；10th, transition arm；10a, deep-slotted chip breaker；11st, secondary-rocker；12、
Magnetic part；13rd, auxiliary spring；14th, filter；15th, articulation；16th, contiguous block；17th, secondary spring；18th, loose collar.
Specific embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figures 1 to 4, this lever pressure difference safety regulating valve includes valve body 1, bonnet 2, barrier film 3, connector 4, pendulum
Arm component and pressure regulating dump valve 5, wherein valve body 1 have inlet channel 1a and outlet passageway 1b, are formed with outlet passageway 1b
Chamber 1c is cut off in pressure regulation；Bonnet 2 is covered on valve body 1 and is formed with chamber with valve body 1, and the sealing of barrier film 3 is located at valve body 1 and bonnet 2
Between and chamber is divided into inner cavity chamber 1d and exocoel 1e by barrier film 3, inner cavity chamber 1d is communicated with pressure regulation cut-out chamber 1c；Connector 4
Located at the center of barrier film 3, and when inside and outside chamber 1e produces draught head connector 4 can be driven to be vertically moved up or down by barrier film 3；Swing arm
Component is connected in inner cavity chamber 1d and with connector 4；Pressure regulating dump valve 5 cuts off at the 1c of chamber located at pressure regulation and connects air inlet and leads to
Road 1a and outlet passageway 1b, pressure regulating dump valve 5 is provided with the pressure regulation valve head 6 and valve rod 7 being connected, and valve rod 7 is connected with swing arm unit,
And pressure regulation valve head 6 can be controlled to move axially and make inlet channel 1a with outlet passageway 1b in connecting or dissengaged positions, in connection
Main spring 8 is arranged with body 4, the one end of main spring 8 is resisted against on barrier film 3, and the other end is resisted against on bonnet 2.
The present invention is a kind of automatic Regulation throttling that is integrated and unexpected superpressure, under-voltage of being easily installed on gas piping
And the lever pressure difference safety regulating valve that automatic safe of stopping the supple of gas or steam is closed (consumed energy without outside), it is provided with the cavity of regulating valve close
The inner cavity chamber 1d and the exocoel 1e of the separate insertion atmospheric pressure of barrier film 3 of the regulation pressure of envelope.At the center of barrier film 3 equipped with company
Connect the connector 4 of interior exocoel 1e parts.Pressure regulation valve head 6 in pressure regulation cut-out chamber 1c connects master rocker 9 and secondary-rocker by valve rod 7
11 act on exocoel 1e main springs 8 come the size of its aperture of normal regulating by the connector 4 of barrier film 3, control the flow of gas
And pressure, it is downstream supplied in the parameter area of setting.
Before the valve port of pressure regulating dump valve 5 is put, valve rod 7 is not passed through valve port, and pressure regulator valve is offset without increasing valve port area
The sectional area of bar 7, such relative increase pressure of the pressure regulation valve head 6 to valve port.So as to reduce the closing presure of equipment, improve
Equipment safety grade.
When upstream gas pressure beyond setting scope (superpressure, under-voltage, stop the supple of gas or steam), or because of valve head fault accommodation failure,
Upstream device failure, improper use cause excessively stream, tempering etc. factor to cause this equipment can not normally to supply, it is possible to downstream
When equipment and surrounding environment constitute harm, the cut-out valve head in pressure regulation cut-out chamber 1c can in time close cut-out valve port, wider
Inside protect safety gas.
Further, swing arm unit includes master rocker 9, transition arm 10 and secondary-rocker 11, and master rocker 9 is articulated and connected in valve body
In 1 and one end of master rocker 9 is connected with valve rod 7, and the other end is provided with magnetic part 12 and can be attracting with transition arm 10, and when inside and outside chamber
Master rocker 9 is disconnected with transition arm 10 when the draught head that room 1e is produced is more than 12 suction of magnetic part, and the one end of secondary-rocker 11 is hinged
It is connected in valve body 1, the other end is connected with transition arm 10, the middle part of transition arm 10 is connected with connector 4, in the one end of transition arm 10 hinge
Contiguous block 16 is connected in succession, secondary-rocker 11 is arranged on contiguous block 16, auxiliary spring 13 is arranged with secondary-rocker 11, and when pair is shaken
Arm 11 can compress auxiliary spring 13 when swinging, and one group of vector be formed by secondary-rocker 11 and auxiliary spring 13, so that controllable with master rocker 9
Motion can change the secondary-rocker 11 of its mechanics parameter, carry out supplementary function in the main spring 8 on master rocker 9 in impulse stroke
Pad value, so that equipment reduction closing presure, reduces total stress value of barrier film 3, extends its service life.It can also be made not
On the premise of reducing the precision of voltage regulation, increase rate of discharge, cause the device to be used across level, reduce use cost.Other auxiliary spring 13
With the collective effect of main spring 8 in the body of barrier film 3 and other components, the strength of resonance can be weakened, increase cut-out valve pad cut-out pressure, accomplished
One multiplex, improves equipment performance, saves manufacturing cost.
Install master rocker 9 additional a magnetic part 12 simultaneously, when exception or inlet pressure superelevation occurs in pressure regulation valve port, cause inner chamber
Raised with downstream pressure, more than setting pressure, master rocker 9 can be disconnected, and band ovable valve stem 7 is pulled back, cut-out upstream high side gas
Body, it is ensured that upstream device facility uses gas safety.
Further, deep-slotted chip breaker 10a is offered on transition arm 10, connecting shaft and connecting shaft is equipped with deep-slotted chip breaker 10a
It is fixed on connector 4.
Further, the other end in master rocker 9 has groove and groove is located at below the middle part of transition arm 10, above-mentioned magnetic
Property part 12 be located at groove in.
Further, connector 4 includes that the upper connector 4a being fixedly connected with and lower connector 4b, upper connector 4a are located at exocoel
Room 1e is interior and main spring 8 is sheathed on connector 4a, and lower connector 4b is located in inner cavity chamber 1d and solid with above-mentioned connecting shaft
Even.
Further, upper connector 4a is provided with loose collar 18, has two symmetrically arranged limited post 2a on bonnet 2,
Secondary spring 17 is arranged with limited post 2a and the one end of secondary spring 17 is resisted against on loose collar 18.
Further, also there is the filter chamber 1f of connection inlet channel 1a and outlet passageway 1b in valve body 1, in filter chamber
Filter 14 is provided with 1f, last road filtering chamber of import source of the gas is used as by filter 14, it is ensured that pressure regulation, two valve ports of cut-out
Can long-term normal work.
Further, articulation 15 is provided with inlet channel 1a, adjustable high-performance loose joint is installed in inlet channel 1a additional
First 15, auxiliary facility part is reduced, facilitate installation and after-sales service to construct.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of lever pressure difference safety regulating valve, it is characterised in that including
Valve body, with inlet channel and outlet passageway, is formed with pressure regulation cut-out chamber in outlet passageway；
Bonnet, is covered on valve body and is formed with chamber with valve body；
Barrier film, sealing is located between valve body and bonnet and chamber is divided into inner cavity chamber and exocoel, inner cavity chamber and pressure regulation by barrier film
Cut-out chamber communicates；
Connector, located at diaphragm center, and can drive connector vertically to rise when inside and outside chamber produces draught head by barrier film
Drop；
Swing arm unit, is connected in inner cavity chamber and with connector；
Pressure regulating dump valve, cuts off at chamber located at pressure regulation and connects inlet channel and outlet passageway, and pressure regulating dump valve is provided with connected
The pressure regulation valve head and valve rod for connecing, valve rod are connected with swing arm unit, and can control pressure regulation valve head move axially and make inlet channel and
Outlet passageway is in connection or dissengaged positions.
2. lever pressure difference safety regulating valve according to claim 1, it is characterised in that swing arm unit include master rocker,
Transition arm and secondary-rocker, master rocker are articulated and connected and be connected with valve rod in valve body and master rocker one end, and the other end is provided with magnetic part
And can be attracting with transition arm, and master rocker departs from transition arm when the draught head that inside and outside chamber is produced is more than magnetic part suction
Connection, secondary-rocker one end is articulated and connected in valve body, and the other end is connected with transition arm, and transition arm middle part is connected with connector.
3. lever pressure difference safety regulating valve according to claim 2, it is characterised in that be articulated and connected in transition arm one end
There is contiguous block, secondary-rocker is arranged on contiguous block, auxiliary spring is arranged with secondary-rocker, and pair can be compressed when secondary-rocker swings
Spring.
4. the lever pressure difference safety regulating valve according to Claims 2 or 3, it is characterised in that offered on transition arm
Deep-slotted chip breaker, is equipped with connecting shaft in deep-slotted chip breaker and connecting shaft is fixed on connector.
5. the lever pressure difference safety regulating valve according to Claims 2 or 3, it is characterised in that in the other end of master rocker
The lower section in the middle part of transition arm with groove and groove, above-mentioned magnetic part is located in groove.
6. the lever pressure difference safety regulating valve according to claim 1 or 2 or 3, it is characterised in that be arranged on connector
There is main spring, main spring one end is resisted against on barrier film, and the other end is resisted against on bonnet.
7. lever pressure difference safety regulating valve according to claim 6, it is characterised in that it is upper that connector includes being fixedly connected with
Connector and lower connector, upper connector is located in exocoel and main spring is sheathed on connector, and lower connector is located at interior
It is connected in chamber and with above-mentioned connecting shaft.
8. lever pressure difference safety regulating valve according to claim 7, it is characterised in that upper connector is provided with activity
Ring, has two symmetrically arranged limited posts on bonnet, secondary spring is arranged with limited post and secondary spring one end is resisted against
On loose collar.
9. the lever pressure difference safety regulating valve according to claim 1 or 2 or 3, it is characterised in that also have in valve body
The filter chamber of connection inlet channel and outlet passageway, is provided with filter in filter chamber.
10. the lever pressure difference safety regulating valve according to claim 1 or 2 or 3, it is characterised in that in inlet channel
It is provided with articulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105981.XA CN106764004A (en) | 2017-02-27 | 2017-02-27 | Lever pressure difference safety regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105981.XA CN106764004A (en) | 2017-02-27 | 2017-02-27 | Lever pressure difference safety regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106764004A true CN106764004A (en) | 2017-05-31 |
Family
ID=58960603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105981.XA Pending CN106764004A (en) | 2017-02-27 | 2017-02-27 | Lever pressure difference safety regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764004A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762639A (en) * | 2017-11-22 | 2018-03-06 | 浙江博力机电制造有限公司 | A kind of new lever type exhaust brake valve |
| CN111271469A (en) * | 2020-03-25 | 2020-06-12 | 高战 | Adjustable flow limiting valve |
| CN116379363A (en) * | 2023-04-10 | 2023-07-04 | 广州研测安全技术有限公司 | Remote valve closing device for gas leakage alarm |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090810Y (en) * | 2007-09-29 | 2008-07-23 | 周冀东 | Piping gas ultra-underpressure, tube knockout self-closing stop valve |
| JP2009064345A (en) * | 2007-09-07 | 2009-03-26 | Yazaki Corp | Pressure regulator and abnormal pressure decision method thereof |
| CN102454814A (en) * | 2010-11-01 | 2012-05-16 | 艾默生过程管理调节技术公司 | Valve bodies having integral boost reducing capability |
| CN202733077U (en) * | 2012-06-08 | 2013-02-13 | 西安万泰燃气设备有限公司 | Security type gas pressure regulator |
| CN206487923U (en) * | 2017-02-27 | 2017-09-12 | 宁波万照燃气设备有限公司 | Lever pressure difference safety regulating valve |
-
2017
- 2017-02-27 CN CN201710105981.XA patent/CN106764004A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064345A (en) * | 2007-09-07 | 2009-03-26 | Yazaki Corp | Pressure regulator and abnormal pressure decision method thereof |
| CN201090810Y (en) * | 2007-09-29 | 2008-07-23 | 周冀东 | Piping gas ultra-underpressure, tube knockout self-closing stop valve |
| CN102454814A (en) * | 2010-11-01 | 2012-05-16 | 艾默生过程管理调节技术公司 | Valve bodies having integral boost reducing capability |
| CN202733077U (en) * | 2012-06-08 | 2013-02-13 | 西安万泰燃气设备有限公司 | Security type gas pressure regulator |
| CN206487923U (en) * | 2017-02-27 | 2017-09-12 | 宁波万照燃气设备有限公司 | Lever pressure difference safety regulating valve |
Non-Patent Citations (1)
| Title |
|---|
| 张金国等: "新型自动隔断阀设计的研究", 《机电设备》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762639A (en) * | 2017-11-22 | 2018-03-06 | 浙江博力机电制造有限公司 | A kind of new lever type exhaust brake valve |
| CN111271469A (en) * | 2020-03-25 | 2020-06-12 | 高战 | Adjustable flow limiting valve |
| CN116379363A (en) * | 2023-04-10 | 2023-07-04 | 广州研测安全技术有限公司 | Remote valve closing device for gas leakage alarm |
| CN116379363B (en) * | 2023-04-10 | 2024-02-09 | 广州研测安全技术有限公司 | Remote valve closing device for gas leakage alarm |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
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| WD01 | Invention patent application deemed withdrawn after publication |