CN108799583A - A kind of pressure reducing valve feedback gas balancer - Google Patents
A kind of pressure reducing valve feedback gas balancer Download PDFInfo
- Publication number
- CN108799583A CN108799583A CN201810984505.4A CN201810984505A CN108799583A CN 108799583 A CN108799583 A CN 108799583A CN 201810984505 A CN201810984505 A CN 201810984505A CN 108799583 A CN108799583 A CN 108799583A
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- Prior art keywords
- valve
- counter balance
- pressure reducing
- valve body
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 description 27
- 230000000694 effects Effects 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005303 weighing 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/32—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting on a servo-mechanism or on a catch-releasing mechanism
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a kind of pressure reducing valve feedback gas balancers,It is related to pressure reducing valve technical field,The present invention includes valve body,Valve body both ends are respectively arranged with inlet end and an outlet end,The gas conveyor chamber being provided in valve body between inlet end and an outlet end,It is provided with valve port in gas conveyor chamber,The valve rod that can be moved up and down in valve port is provided in gas conveyor chamber,Stem bottom is connected with the flap below valve port,The annular valve pocket coordinated with flap is provided in valve port,Valve rod passes through annular valve pocket,Annular valve pocket bottom offers at least two uniformly distributed cushion holes,Cushion hole inner top is respectively connected with buffer spring,The buffer spring other end is respectively connected with the mandril coordinated with cushion hole,Flap upper surface is inlaid with several steel balls being located at immediately below corresponding mandril,The present invention has simple in structure,Good operating stability,Advantage with long service life.
Description
Technical field
The present invention relates to pressure reducing valve technical fields, more particularly to a kind of pressure reducing valve feedback gas balancer.
Background technology
Gas pressure reducer is a kind of special arrangement of automatic reduction working pressure of pipeline, it can be by the higher liquid of pipeline before valve
Level after body pressure is reduced to valve needed for pipeline.There are many structural type of pressure reducing valve, can be divided into diaphragm type, bullet by structure type
Spring diaphragm type, piston type, lever and bellows-type etc., by valve seat number can artificial single seated and double seat, by the position of flap
Positive interaction type and reaction-type can be divided by setting difference, can be divided into nitrogen pressure reducing valve, hydrogen pressure reducing valve, oxygen pressure reducing valve by medium
Deng.
Gas pressure reducer forms low-pressure gas, low-pressure gas after input end inputs high pressure gas, by depressurizing valve action
Pressure value when being come out from outlet end is P, and P floats in certain fluctuation range, worked at this to form dynamic equilibrium
Cheng Zhong, the valve rod inside pressure reducing valve floats up and down under air pressure fluctuation effect along the valve port of valve inner, if domain of walker
Excessive, the flap of stem bottom can clash at valve port, and vibratory sensation is stronger, cause to damage to valve body, be caused when serious
Entire pressure reducing valve failure, safety is low, and the service life period is short.
Therefore above-mentioned technical problem how is solved, there is very much realistic meaning to those skilled in the art.
Invention content
It is an object of the invention to：Vibratory sensation is stronger when in order to solve existing gas pressure reducer work, hits and acutely holds
The technical issues of easily causing pressure reducing valve failure, the present invention provide a kind of pressure reducing valve feedback gas balancer.
The present invention specifically uses following technical scheme to achieve the goals above：
A kind of pressure reducing valve feedback gas balancer, including valve body, valve body both ends are respectively arranged with inlet end and an outlet end, valve
It is provided with gas conveyor chamber between inlet end and an outlet end in vivo, valve port, gas conveying are provided in gas conveyor chamber
Intracavitary is provided with the valve rod that can be moved up and down in valve port, and stem bottom is connected with the flap below valve port, is set in valve port
It is equipped with the annular valve pocket coordinated with flap, valve rod passes through annular valve pocket, and it is uniformly distributed slow that annular valve pocket bottom offers at least two
Punching, cushion hole inner top are respectively connected with buffer spring, and the buffer spring other end is respectively connected with the mandril coordinated with cushion hole, valve
Valve upper surface is inlaid with several steel balls being located at immediately below corresponding mandril.
Further, the counter balance pocket being provided in valve body above gas conveyor chamber, outlet end and counter balance pocket bottom it
Between be provided with signal feedback pipe, be provided with flexible main film in counter balance pocket, main film both ends are fixed on counter balance pocket side,
Valve rod passes through main film, valve stem top to be connected with the balancing spring contacted with main film upper surface, is provided in valve body positioned at flat
The plunger shaft of weighing apparatus top of chamber, balancing spring top are connected with the piston block that can be slided up and down in plunger shaft, and piston block is connected with
The telescopic rod of plunger shaft is stretched out, several graduation marks are evenly equipped on telescopic rod.
Further, telescopic rod upper end is provided with triggering block, and the outer top of plunger shaft is provided with immediately below triggering block
Trigger switch, trigger switch are electrically connected with the alarm being arranged in valve outer wall.
Further, signal feedback pipe both ends, which are respectively mounted by engaging bolts, is connected between outlet end and counter balance pocket bottom.
Further, the shell that counter balance pocket is detachably connected by two surrounds, and counter balance pocket is in integrally the ellipsoid bodily form.
Beneficial effects of the present invention are as follows：
1, when air pressure fluctuation is larger, valve rod drives flap to move up close to valve port, and at this moment the steel ball on flap is close first
The upper mandril of annular plate valve set at valve port, mandril stretch into cushion hole and squeeze buffer spring, and speed is moved up to reduce flap
Degree, is made flap and valve rod slowly settle out, is contacted with face using the point between steel ball and mandril, and tradition directly face and face are changed
Contact, avoid being in direct contact for flap and annular valve pocket, reduce strenuous vibration, prevent damage valve inner component, protect
Safety in utilization is demonstrate,proved, the service life of the valve body to extend.
2, when being transmitted to the gas pressure in counter balance pocket in main film by signal feedback pipe, main film is made to swing up and down,
Main film applies active force to balancing spring simultaneously, so that balancing spring band ovable valve stem is moved up and down, while balancing spring is in main film
Piece effect is lower constantly flexible, drives piston block to be moved back and forth in plunger shaft, to drive telescopic rod to move up and down, passes through observation
Telescopic rod moves up and down amplitude, i.e., telescopic rod mobile range is in a certain section of section of graduation mark, to converse outlet end
The fluctuation range size of air pressure, the interval range of telescopic rod mobile range are bigger, then it represents that the fluctuation range of outlet end air pressure is got over
Greatly, then input air pressure is adjusted again, until telescopic rod mobile range stablize in a certain section of section, then complete to going out
The adjusting of mouth end air pressure can intuitively learn the fluctuation model of outlet end air pressure using the graduation mark on telescopic rod as measurement standard
Size is enclosed, to improve air pressure adjustment precision
3, telescopic rod upper end is provided with triggering block, and the triggering that the outer top of plunger shaft is provided with immediately below triggering block is opened
Close, trigger switch is electrically connected with the alarm being arranged in valve outer wall, when telescopic rod move up and down amplitude it is excessive when, make triggering
Block touches trigger switch, and trigger switch, which sends out signal, makes alarm send out prompting sound, that is, indicates the fluctuation model of outlet end air pressure
It encloses too greatly, has exceeded the safety value that valve body is born, at this moment need the pressure value for adjusting input air pressure to reach safety value, improve
Valve body service life.
4, signal feedback pipe both ends, which are respectively mounted by engaging bolts, is connected between outlet end and counter balance pocket bottom, can basis
The signal feedback pipe of different tube diameters is replaced in actual demand, easy to operate.
5, the shell that counter balance pocket is detachably connected by two surrounds, and counter balance pocket is in integrally the ellipsoid bodily form, can will surround balance
The shell of chamber is dismantled, easy maintenance and replacement inner components, while the counter balance pocket of the ellipsoid bodily form is avoided that feed back from signal and manage
The air-flow passed over excessively disperses, and has certain guiding function to air-flow, improves air pressure signal feedback sensitivity.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of pressure reducing valve feedback gas balancer of the present invention；
Fig. 2 is the partial enlargement structural representation at A in Fig. 1.
Reference numeral：1- valve bodies, 2- input ends, the outlet ends 3-, 4- gas conveyor chambers, 5- counter balance pockets, 6- signals feedback pipe,
7- main films, 8- valve rods, 9- balancing springs, 10- valve ports, 11- flaps, 12- plunger shafts, 13- piston blocks, 14- telescopic rods,
14.1- graduation marks, 15- triggering blocks, 16- trigger switch, 17- alarms, 18- annular valve pockets, 19- cushion holes, 20- buffering elastics
Spring, 21- mandrils, 22- steel balls.
Specific implementation mode
In order to which those skilled in the art are better understood from the present invention, below in conjunction with the accompanying drawings with following embodiment to the present invention
It is described in further detail.
Embodiment 1
As shown in Fig. 1 to 2, the present embodiment provides a kind of pressure reducing valve feedback gas balancers, including valve body 1, including valve body
1,1 both ends of valve body are respectively arranged with input end 2 and outlet end 3, are provided in valve body 1 between input end 2 and outlet end 3
Gas conveyor chamber 4 is provided with valve port 10 in gas conveyor chamber 4, and being provided in gas conveyor chamber 4 can move up and down in valve port 10
Valve rod 8,8 bottom of valve rod is connected with the flap 11 positioned at the lower section of valve port 10, the ring coordinated with flap 11 is provided in valve port 10
Shape valve pocket 18, valve rod 8 pass through annular valve pocket 18,18 bottom of annular valve pocket to offer at least two uniformly distributed cushion holes 19, buffer
19 inner top of hole is respectively connected with buffer spring 20, and 20 other end of buffer spring is respectively connected with the mandril 21 coordinated with cushion hole 19,
11 upper surface of flap is inlaid with several steel balls 22 being located at immediately below corresponding mandril 21.
In the present embodiment, when air pressure fluctuation is larger, valve rod drives flap to move up close valve port, at this moment the steel ball on flap
First close to the upper mandril of annular plate valve set at valve port, mandril stretches into cushion hole and squeezes buffer spring, to reduce valve
Valve moves up speed, and flap and valve rod is made slowly to settle out, and is contacted with face using the point between steel ball and mandril, and it is straight to change tradition
Contact of the junction with face avoids being in direct contact for flap and annular valve pocket, reduces strenuous vibration, prevent damage valve inner
Component ensure that safety in utilization, the service life of the valve body to extend.
Embodiment 2
As shown in Figure 1, the present embodiment is further optimized on the basis of embodiment 1, and specifically, 1 both ends of valve body
It is respectively arranged with input end 2 and outlet end 3, the gas conveyor chamber 4 being connected to input end 2 and outlet end 3 is provided in valve body 1,
The counter balance pocket 5 being provided in valve body 1 above gas conveyor chamber 4, outlet end 3 and counter balance pocket are provided with signal between 5 bottom
Pipe 6 is fed back, is provided with flexible main film 7 in counter balance pocket 5,7 both ends of main film are fixed on 5 side of counter balance pocket, and valve rod 8 is worn
Main film 7 is crossed, 8 top of valve rod is connected with the balancing spring 9 contacted with 7 upper surface of main film, is provided in valve body 1 positioned at balance
The plunger shaft 12 at 5 top of chamber, 9 top of balancing spring are connected with the piston block 13 that can be slided up and down in plunger shaft 12, piston block
13 are connected with the telescopic rod 14 for stretching out plunger shaft 12, and several graduation marks 14.1 are evenly equipped on telescopic rod 14.
In the present embodiment, the gas pressure in counter balance pocket is transmitted in main film when feeding back pipe by signal, makes main film
It swings up and down, while main film applies active force to balancing spring, so that balancing spring band ovable valve stem is moved up and down, while equilibrium bomb
Spring is constantly flexible under main film effect, and piston block is driven to be moved back and forth in plunger shaft, to drive telescopic rod to move up and down,
Amplitude is moved up and down by observation telescopic rod, i.e., telescopic rod mobile range is in a certain section of section of graduation mark, to convert
Go out the fluctuation range size of outlet end air pressure, the interval range of telescopic rod mobile range is bigger, then it represents that the wave of outlet end air pressure
Dynamic range is bigger, and then input air pressure is adjusted again, until telescopic rod mobile range stablize in a certain section of section, then it is complete
At the adjusting to outlet end air pressure, using the graduation mark on telescopic rod as measurement standard, outlet end air pressure can be intuitively learnt
Fluctuation range size, to improve air pressure adjustment precision.
Embodiment 3
As shown in Figure 1, the present embodiment is further optimized on the basis of embodiment 2, specifically, on telescopic rod 14
End is provided with triggering block 15, and the outer top of plunger shaft 12 is provided with the trigger switch 16 immediately below triggering block 15, trigger switch
16 are electrically connected with the alarm 17 being arranged in 1 outer wall of valve body.
In the present embodiment, when telescopic rod move up and down amplitude it is excessive when, so that triggering block is touched trigger switch, trigger switch
Sending out signal makes alarm send out prompting sound, that is, indicates that the fluctuation range of outlet end air pressure is too big, have exceeded the peace that valve body is born
At this moment total head needs the pressure value for adjusting input air pressure to reach safety value, improves valve body service life.
Embodiment 4
As shown in Figure 1, the present embodiment is further optimized on the basis of embodiment 2, and specifically, signal feedback pipe
6 both ends, which are respectively mounted by engaging bolts, to be connected between 5 bottom of outlet end 3 and counter balance pocket.
In the present embodiment, by signal feedback pipe be arranged to it is detachable, can according to actual demand replace different tube diameters
Signal feedback pipe, it is easy to operate.
Embodiment 5
As shown in Figure 1, the present embodiment is further optimized on the basis of embodiment 1, specifically, counter balance pocket 5 by
Two shells being detachably connected surround, and whole counter balance pocket 5 is in the ellipsoid bodily form.
In the present embodiment, the shell for surrounding counter balance pocket can be dismantled, easy maintenance and replacement inner components, while ellipsoid
The counter balance pocket of the bodily form is avoided that the air-flow passed over from signal feedback pipe excessively disperses, and has certain guiding function to air-flow, carries
High air pressure signal feedback sensitivity.
Operation principle：When pressure reducing valve works, the outlet end of pressure reducing valve starts downstream gas transmission, and outlet pressures drop suddenly
It is low, the transmission of pipe is fed back by signal, so that the atmospheric pressure for acting on main film is less than the elastic force of balancing spring, in spring force
Valve rod is set to move down under effect, flap is separated from valve port, and outlet end air pressure gradually increases, when the high pressure gas of input end is to outlet
When the conveying of end, outlet pressures moment increases, and raised gas feeds back the cavity of resorption that pipe is transmitted to counter balance pocket by signal, makes effect
Be more than the elastic force of balancing spring in the atmospheric pressure of main film, main film is swung up, to make balancing spring band ovable valve stem to
Upper movement makes valve port reduce at a distance from flap, and outlet pressures then start to reduce again, thus forms periodic cycle mistake
Journey makes outlet pressures be fluctuated in a certain range value periodically.When pressure reducing valve does not work, the effect of air pressure in outlet end,
Flap is in fully closed condition with valve port, and outlet pressures are stablized in setting value.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, patent protection model of the invention
It encloses and is subject to claims, equivalent structure variation made by every specification and accompanying drawing content with the present invention, similarly
It should be included within the scope of the present invention.
Claims (5)
1. a kind of pressure reducing valve feedback gas balancer, including valve body (1), valve body (1) both ends are respectively arranged with input end (2) and go out
Mouth end (3), the interior gas conveyor chamber (4) being provided between input end (2) and outlet end (3) of valve body (1), gas conveyor chamber
(4) it is provided with valve port (10) in, the valve rod (8) that can be moved up and down in valve port (10), valve rod are provided in gas conveyor chamber (4)
(8) bottom is connected with the flap (11) below valve port (10), which is characterized in that is provided in valve port (10) and flap (11)
The annular valve pocket (18) of cooperation, valve rod (8) pass through annular valve pocket (18), and it is uniformly distributed that annular valve pocket (18) bottom offers at least two
Cushion hole (19), cushion hole (19) inner top is respectively connected with buffer spring (20), and buffer spring (20) other end is respectively connected with
With the mandril (21) of cushion hole (19) cooperation, flap (11) upper surface is inlaid with several steel being located at immediately below corresponding mandril (21)
Pearl (22).
2. a kind of pressure reducing valve feedback gas balancer according to claim 1, which is characterized in that be provided in valve body (1)
Counter balance pocket (5) above gas conveyor chamber (4) is provided with signal feedback pipe between outlet end (3) and counter balance pocket (5) bottom
(6), it is provided with flexible main film (7) in counter balance pocket (5), main film (7) both ends are fixed on counter balance pocket (5) side, valve
Bar (8) is provided with the plunger shaft (12) at the top of counter balance pocket (5) in main film (7), valve body (1), and plunger shaft (12) is interior
It is provided with balancing spring (9), balancing spring (9) bottom is contacted with the upper surface of main film (7), connection at the top of balancing spring (9)
There are the piston block (13) that can be slided up and down in plunger shaft (12), piston block (13) to be connected with the telescopic rod for stretching out plunger shaft (12)
(14), several graduation marks (14.1) are evenly equipped on telescopic rod (14).
3. a kind of pressure reducing valve feedback gas balancer according to claim 2, which is characterized in that telescopic rod (14) upper end is set
It is equipped with triggering block (15), top is provided with the trigger switch (16) immediately below triggering block (15), triggering to plunger shaft (12) outside
Switch (16) is electrically connected with the alarm (17) being arranged in valve body (1) outer wall.
4. a kind of pressure reducing valve feedback gas balancer according to claim 2, which is characterized in that signal feedback pipe (6) two
End, which is respectively mounted by engaging bolts, to be connected between outlet end (3) and counter balance pocket (5) bottom.
5. a kind of pressure reducing valve feedback gas balancer according to any claim in claim 2 to 4, feature exist
In the shell that counter balance pocket (5) is detachably connected by two surrounds, and counter balance pocket (5) is in integrally the ellipsoid bodily form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984505.4A CN108799583B (en) | 2018-08-27 | 2018-08-27 | Pressure reducing valve feedback gas balancer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984505.4A CN108799583B (en) | 2018-08-27 | 2018-08-27 | Pressure reducing valve feedback gas balancer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108799583A true CN108799583A (en) | 2018-11-13 |
| CN108799583B CN108799583B (en) | 2024-02-13 |
Family
ID=64080880
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984505.4A Active CN108799583B (en) | 2018-08-27 | 2018-08-27 | Pressure reducing valve feedback gas balancer |
Country Status (1)
| Country | Link |
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| CN (1) | CN108799583B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538565A (en) * | 2018-11-29 | 2019-03-29 | 河南航天液压气动技术有限公司 | A kind of combination valve |
| CN109758624A (en) * | 2018-12-30 | 2019-05-17 | 捷锐企业(上海)有限公司 | A kind of high reliability draft regulator |
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|---|---|---|---|---|
| EP0266007A2 (en) * | 1986-10-28 | 1988-05-04 | T L V Co., Ltd. | Piston restraining construction of pressure reducing valve |
| CN202149260U (en) * | 2011-08-02 | 2012-02-22 | 欧特莱能源装备有限公司 | Fuel gas pressure regulator |
| CN203214990U (en) * | 2013-04-18 | 2013-09-25 | 上海艾维科阀门有限公司 | Pressure reducing valve for nuclear power water system |
| CN203286072U (en) * | 2013-05-25 | 2013-11-13 | 铜陵市三圆特种铸造有限责任公司 | Modularized valve plug structure for high-flow balanced pressure regulating valve |
| CN103542150A (en) * | 2013-10-30 | 2014-01-29 | 杭州春江阀门有限公司 | Pressure reducing valve with valve closing function |
| CN205298643U (en) * | 2016-01-08 | 2016-06-08 | 志远科技有限公司 | Pressure reducing valve |
| US20170211720A1 (en) * | 2014-07-22 | 2017-07-27 | Fisher Jeon Gas Equipment (Chengdu) Co. Ltd. | Balanced valve element and pressure regulating valve |
| CN207145657U (en) * | 2017-09-21 | 2018-03-27 | 河北永良燃气设备有限公司 | A kind of gas pressure regulator, governor |
| CN208719492U (en) * | 2018-08-27 | 2019-04-09 | 成都川力智能流体设备股份有限公司 | A kind of pressure reducing valve feedback gas balancer |
-
2018
- 2018-08-27 CN CN201810984505.4A patent/CN108799583B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0266007A2 (en) * | 1986-10-28 | 1988-05-04 | T L V Co., Ltd. | Piston restraining construction of pressure reducing valve |
| CN202149260U (en) * | 2011-08-02 | 2012-02-22 | 欧特莱能源装备有限公司 | Fuel gas pressure regulator |
| CN203214990U (en) * | 2013-04-18 | 2013-09-25 | 上海艾维科阀门有限公司 | Pressure reducing valve for nuclear power water system |
| CN203286072U (en) * | 2013-05-25 | 2013-11-13 | 铜陵市三圆特种铸造有限责任公司 | Modularized valve plug structure for high-flow balanced pressure regulating valve |
| CN103542150A (en) * | 2013-10-30 | 2014-01-29 | 杭州春江阀门有限公司 | Pressure reducing valve with valve closing function |
| US20170211720A1 (en) * | 2014-07-22 | 2017-07-27 | Fisher Jeon Gas Equipment (Chengdu) Co. Ltd. | Balanced valve element and pressure regulating valve |
| CN205298643U (en) * | 2016-01-08 | 2016-06-08 | 志远科技有限公司 | Pressure reducing valve |
| CN207145657U (en) * | 2017-09-21 | 2018-03-27 | 河北永良燃气设备有限公司 | A kind of gas pressure regulator, governor |
| CN208719492U (en) * | 2018-08-27 | 2019-04-09 | 成都川力智能流体设备股份有限公司 | A kind of pressure reducing valve feedback gas balancer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538565A (en) * | 2018-11-29 | 2019-03-29 | 河南航天液压气动技术有限公司 | A kind of combination valve |
| CN109758624A (en) * | 2018-12-30 | 2019-05-17 | 捷锐企业(上海)有限公司 | A kind of high reliability draft regulator |
| CN109758624B (en) * | 2018-12-30 | 2022-07-01 | 捷锐企业(上海)有限公司 | High-reliability negative pressure regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108799583B (en) | 2024-02-13 |
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