CN110206932A - A kind of proportioning valve - Google Patents
A kind of proportioning valve Download PDFInfo
- Publication number
- CN110206932A CN110206932A CN201910594469.5A CN201910594469A CN110206932A CN 110206932 A CN110206932 A CN 110206932A CN 201910594469 A CN201910594469 A CN 201910594469A CN 110206932 A CN110206932 A CN 110206932A
- Authority
- CN
- China
- Prior art keywords
- spool
- runner
- guide rod
- room
- 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
Links
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 239000000567 combustion gas Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
-
- 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
-
- 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
-
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of proportioning valves, including valve casing, spool, guide rod, spring, fixed lid and solenoid, and valve casing, which has, flows into room, delivery chamber and valve seat；Valve seat is equipped with connection and flows into room and delivery chamber and the valve port to match with spool, valve seat is equipped with multiple tracks runner close to the end face of delivery chamber, runner runs through the inner sidewall of valve seat, spool is movably arranged in valve port, guide rod is arranged in valve casing, and the lower end of guide rod is fixedly connected with the bottom wall of delivery chamber, the upper end of guide rod extend into inflow interior after passing through spool and is fixedly connected with the roof for flowing into room, and spring pocket is provided on the indoor guide rod of outflow；Solenoid is arranged on valve casing, and fixed lid is set in be located at and flow on indoor guide rod.The beneficial effects of the present invention are: be able to achieve to enter the indoor throughput of outflow number regulate and control, improve the precision of flow control.
Description
Technical field
The present invention relates to valve field more particularly to a kind of proportioning valves.
Background technique
Proportioning valve is a kind of valve that continuous control can be carried out to respective media flow, in gas utensil, vehicle, medical instrument
Etc. have in every field and apply very extensively.For example, proportioning valve is core control part in gas utensil, pass through ratio
Example valve pressure adjust and voltage stabilizing function, can in the case where fuel gas inlet pressure oscillation stable output pressure.Ratio simultaneously
Valve also has the function of on-off fuel gas pipeline, can disconnect blast tube in the state that gas utensil is closed, prevent the stream of combustion gas
Dynamic and leakage, protects the personal safety of user.But traditional proportioning valve is when in use in the presence of control that precision is poor asks
Topic.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of proportioning valves, to overcome the deficiencies in the prior art described above.
The technical scheme to solve the above technical problems is that a kind of proportioning valve, including valve casing, spool, guide rod,
Spring fixes lid and solenoid, and valve casing has the inflow room of upside, the delivery chamber of downside and positioned at inflow room and delivery chamber
Between valve seat；Valve seat is equipped with connection and flows into room and delivery chamber and the valve port to match with spool, sets on the lower end surface of valve seat
There is multiple tracks runner, and each runner is all extended to close to the upper end surface of valve seat, runner runs through the inner sidewall of valve seat, spool activity
It is arranged in valve port, guide rod is arranged in valve casing, and the lower end of guide rod is fixedly connected with the bottom wall of delivery chamber, guide rod
Upper end extend into inflow interior after passing through spool and is fixedly connected with the roof for flowing into room, and spring pocket is provided in delivery chamber
Guide rod on, and the both ends of spring are pressed against the bottom wall of delivery chamber and the lower end surface of spool respectively；Solenoid is arranged on valve casing,
Fixed lid is set in be located at and flow on indoor guide rod, and solenoid passes through fixed lid in the energized state, spool applies spring
Add pressing force downward, and is sequentially communicated so as to flow into room, valve port, runner and delivery chamber.
The beneficial effects of the present invention are: by the way that spool to be movably arranged in valve port, and setting guide rod is to spool, solid
Fixed lid, spring are oriented to, so that spool and spring are not susceptible to tilt, while runner being arranged in valve port, such spool exists
The unlatching size that can stablize regulation runner during moving down is carried out in valve port, to realize indoor to outflow is entered
The number of throughput is regulated and controled, and the precision of flow control is improved.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the quantity of runner is the road 3-12, at circle distribution on the inner sidewall of valve seat, and two neighboring runner
Angle is equal, and all flow passage structures are identical.
It is using above-mentioned further beneficial effect: can guarantees each side of combustion gas spool when being entered in runner by valve port
Be pressurized equal, avoid spool because each side is pressurized it is not equal due tos there is the problem that Caton phenomenon causes control precision low.
Further, width of the runner close to spool upper surface is less than runner close to the width of spool lower end surface.
Further, the width of runner linearly increases from top to bottom.
Be using the above-mentioned beneficial effect into two steps: with moving down for spool, the throughput for entering delivery chamber will be got over
Come it is bigger, to adjust the size of flame.
Further, valve port is equipped with protruding portion close to the one end for flowing into room, and the upper end of spool is pressed against the lower end surface of protruding portion.
It is using above-mentioned further beneficial effect: spool is prevented to be detached from valve port when proportioning valve does not work.
Further, the lower end of guide rod is fixedly connected by screw with the bottom wall of delivery chamber.
Further, the upper end of guide rod is fixedly connected by screw with the roof for flowing into room.
Be using the above-mentioned beneficial effect into two steps: connection rear stability is good, convenient for disassembly and assembly.
Further, it flows into and is equipped with filter device in the inflow entrance of room.
It is using above-mentioned further beneficial effect: combustion gas can be filtered, extend the service life of proportioning valve.
Further, filter device includes filter screen seat and filter screen, and filter screen is arranged in filter screen seat.
Further, filter screen is made of absorbent charcoal material.
It is using the above-mentioned beneficial effect into two steps: particle, moisture, the oil in combustion gas can be filtered, be conducive to extend ratio
Example valve service life, while be also avoided that because particle enter after caused by spool there is the case where Caton.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of proportioning valve of the present invention；
Fig. 2 is the structural schematic diagram of filter device of the present invention；
Fig. 3 is the structural schematic diagram of the valve seat.
In attached drawing, parts list represented by the reference numerals are as follows:
1, valve casing, 110, upper body, 111, inflow entrance, 120, lower case, 130, end cap, 131, installation cavity, 140,
Valve seat, 141, valve port, 142, runner, 143, protruding portion, 150, inflow room, 160, delivery chamber, 2, spool, 3, guide rod, 4, bullet
Spring, 5, fixed lid, 6, solenoid, 610, coil, 620, movable core, 7, filter device, 710, filter screen seat, 720, filter screen,
8, sealing ring.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of proportioning valve, including valve casing 1, spool 2, guide rod 3, spring 4, fixed 5 and of lid
Solenoid 6, valve casing 1 have the inflow room 150 of upside, the delivery chamber 160 of downside and positioned at inflow room 150 and delivery chamber 160
Between valve seat 140, valve seat 140 is equipped with valve port 141, flows into room 150 and delivery chamber 160 and be connected by valve port 141, valve port
141 match with spool 2, and spool 2 is arranged in valve port 141, and the section configuration of spool 2 can be round or polygon, at this time
The section configuration of valve port 141 is identical as the section configuration of spool 2, and the section configuration of spool 2 is preferably circular.Valve seat 140
Lower end surface is equipped with multiple tracks runner 142, and each runner 142 all extends to 140 upper end surface of valve seat, but not through valve seat 140
Upper surface, runner 142 run through the wall surface of valve port 141.
Spool 2 is movably arranged in valve port 141, and guide rod 3 is arranged in valve casing 1, and the lower end of guide rod 3 and delivery chamber
160 bottom wall is fixedly connected, and the upper end of guide rod 3 extend into the top flowed into room 150 and with inflow room 150 after passing through spool 2
Wall is fixedly connected.Spring 4 is set on the guide rod 3 in delivery chamber 160, and the both ends of spring 4 are pressed against delivery chamber respectively
160 bottom wall and the lower end surface of spool 2.Solenoid 6 is arranged on valve casing 1, and fixed lid 5 is set in be located at and flow into room 150
On guide rod 3, after total is installed, spool 2 is in valve port 141, and spool 2 blocks all runners 142, that is, flows into
Room 150 is not connected to delivery chamber 160, and solenoid 6 in the energized state applies under spring 4 by fixed lid 5, spool 2
The pressing force of side, and be sequentially communicated so as to flow into room 150, valve port 141, runner 142 and delivery chamber 160, i.e., solenoid 6 is powered
Afterwards, solenoid 6 will apply pressing force downward to fixed lid 5, and fixed lid 5 will move down, and fix after lid 5 moves down, will
Push spool 2 towards movement, during spool 2 slowly moves down, it will flow into room 150, valve port 141,142 and of runner
Delivery chamber 160 is sequentially communicated.
Embodiment 2
As shown in Figure 1, Figure 2, Figure 3 shows, the present embodiment is on the basis of embodiment 1 to the further improvement that it is carried out, tool
Body are as follows:
The quantity of runner 142 is the road 3-12, may actually be 3,4,5,6,7,8,9,10,11 or 12, all runners 142 exist
At circle distribution on the inner sidewall of valve seat 140, and the angle of two neighboring runner 142 is equal, is preferably angularly distributed such energy
It is equal enough to guarantee that combustion gas each side of spool 2 when being entered in runner 142 by valve port 141 is pressurized, spool 2 is avoided to be pressurized not because of each side
Deng and there is Caton phenomenon and cause the low problem of control precision.
Runner 142 close to 2 upper surface of spool width be less than runner 142 close to 2 lower end surface of spool width, in this way with
Spool 2 moves down, and the throughput for entering delivery chamber 160 will be increasing, to adjust the size of flame.
The depth of valve port 141 is 10mm-30mm, and the length of spool 2 is 10mm-30mm.Valve port 141 is close to inflow room 150
One end be equipped with protruding portion 143, in the case where solenoid 6 is not powered on, the upper end of spool 2 is pressed against the lower end surface of protruding portion 143,
Preferably in a ring, the difference of the internal-and external diameter of protruding portion 143 is 3mm-5mm to protruding portion 143, and the setting of protruding portion 143 is mainly played
Spool 2 is prevented to be detached from valve port 141 when proportioning valve does not work.
Valve port 141 is equipped with annular groove on the wall surface between protruding portion 143 and runner 142, is equipped in the annular groove
Sealing ring 8 in this way can be effective by sealing contact between the outer surface of the realization spool 2 of sealing ring 8 and the wall surface of valve port 141
Prevent gas leakage, promote security performance.
The lower end of guide rod 3 is fixedly connected by screw with the bottom wall of delivery chamber 160, is set on the bottom wall of delivery chamber 160
Have socket joint hole, the lower end of guide rod 3 is extend into socket joint hole, screw be arranged outside valve casing 1, screw pass through valve casing 1 after with guiding
The lower end of bar 3 is connected.The upper end of guide rod 3 is fixedly connected by screw with the roof for flowing into room 150.
It flows into and is equipped with filter device 7 in the inflow entrance 111 of room 150, wherein filter device 7 includes filter screen seat 710 and filtering
Net 720, filter screen 720 be arranged in filter screen seat 710, between filter screen seat 710 and inflow entrance 111 by the way of being threadedly coupled phase
Fixed, filter screen 720 is made of absorbent charcoal material, and the quantity of set filter screen 720 is multiple in filter screen seat 710, and each mistake
The mesh density of strainer 720 is different, and filter screen 720 can be straight grid, inclined wire lattice or curvilinear grid, has when in inflow entrance 111
After combustion gas enters, filter screen 720 can filter particle, moisture, the oil in combustion gas, conducive to the service life for extending proportioning valve.
Valve casing 1 is by that will form the upper body 110 for flowing into room 150 and valve seat 140 and the lower part for forming delivery chamber 160
Shell 120 is combined and is constituted, and end cap 130 is additionally provided in upper body 110, and the lid of end cap 130 closes the upper of upper body 110
Portion's opening.
Solenoid 6 includes coil 610 and movable core 620, and coil 610 is arranged around end cap 130, on end cap 130
Installation cavity 131 is equipped in the circle zone of coil 610, movable core 620 is arranged in installation cavity 131, and the length of installation cavity 131 is big
In be equal to movable core 620 length and spool 2 length and, fixation lid 5 upper end extend into installation cavity 131, and with
The lower end of movable core 620 is in contact, and the upper end of guide rod 3 passes through spiral shell with the upper end of end cap 130 after movable core 620
Nail is connected.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of proportioning valve, which is characterized in that including valve casing (1), spool (2), guide rod (3), spring (4), fixed lid (5) and
Solenoid (6), the valve casing (1) have the inflow room (150) of upside, the delivery chamber (160) of downside and positioned at inflow rooms
(150) valve seat (140) between delivery chamber (160)；The valve seat (140) is equipped with connection and flows into room (150) and delivery chamber
(160) and with spool (2) lower end surface of the valve port (141) to match, the valve seat (140) is equipped with multiple tracks runner (142),
And each runner (142) all extends to close to the upper end surface of valve seat (140), the runner (142) is through the interior of valve seat (140)
Side wall, the spool (2) are movably arranged in the valve port (141), and guide rod (3) setting is interior in the valve casing (1), and
The lower end of the guide rod (3) is fixedly connected with the bottom wall of delivery chamber (160), and the upper end of the guide rod (3) passes through spool (2)
It extend into afterwards and flows into room (150) and be fixedly connected with the roof for flowing into room (150), the spring (4), which is set in, is located at outflow
On guide rod (3) in room (160), and the both ends of the spring (4) are pressed against the bottom wall and spool (2) of delivery chamber (160) respectively
Lower end surface；The solenoid (6) is arranged on valve casing (1), and the fixed lid (5), which is set in be located at, to be flowed into room (150)
On guide rod (3), the solenoid (6) in the energized state applies under spring (4) by fixed lid (5), spool (2)
The pressing force of side, and be sequentially communicated so as to flow into room (150), valve port (141), runner (142) and delivery chamber (160).
2. a kind of proportioning valve according to claim 1, which is characterized in that the quantity of the runner (142) is the road 3-12, institute
There is runner (142) on the inner sidewall of the valve seat (140) at circle distribution, and the angle of the two neighboring runner (142)
Equal, all runner (142) structures are identical.
3. a kind of proportioning valve according to claim 2, which is characterized in that the runner (142) is close to spool (2) upper surface
Width be less than runner (142) close to spool (2) lower end surface width.
4. a kind of proportioning valve according to claim 3, which is characterized in that the width of the runner (142) is in from top to bottom
It is linear to increase.
5. a kind of proportioning valve according to claim 1, which is characterized in that the valve port (141) is close to inflow room (150)
One end is equipped with protruding portion (143), and the upper end of the spool (2) is pressed against the lower end surface of protruding portion (143).
6. a kind of proportioning valve according to claim 1-5, which is characterized in that the lower end of the guide rod (3) is logical
Screw is crossed to be fixedly connected with the bottom wall of delivery chamber (160).
7. a kind of proportioning valve according to claim 1-6, which is characterized in that the upper end of the guide rod (3) is logical
It crosses screw and is fixedly connected with the roof for flowing into room (150).
8. a kind of proportioning valve according to claim 1, which is characterized in that in the inflow entrance (111) for flowing into room (150)
Equipped with filter device (7).
9. a kind of proportioning valve according to claim 5, which is characterized in that the filter device (7) includes filter screen seat (710)
With filter screen (720), filter screen (720) setting is in the filter screen seat (710).
10. a kind of proportioning valve according to claim 7, which is characterized in that the filter screen (720) uses absorbent charcoal material
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594469.5A CN110206932A (en) | 2019-07-03 | 2019-07-03 | A kind of proportioning valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594469.5A CN110206932A (en) | 2019-07-03 | 2019-07-03 | A kind of proportioning valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206932A true CN110206932A (en) | 2019-09-06 |
Family
ID=67796053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910594469.5A Pending CN110206932A (en) | 2019-07-03 | 2019-07-03 | A kind of proportioning valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206932A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985707A (en) * | 2019-12-23 | 2020-04-10 | 武汉欣力瑞机电设备有限公司 | Multi-channel flow divider |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994027069A1 (en) * | 1993-05-19 | 1994-11-24 | Georg Fischer Rohrleitungssysteme Ag | Valve |
| JP2001317652A (en) * | 2000-05-01 | 2001-11-16 | Time Engineering Co Ltd | Electromagnetic proportional valve |
| CN101482185A (en) * | 2009-02-09 | 2009-07-15 | 郑国隆 | Gas valve with two-way proportional exhaustion |
| CN103133701A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve |
| CN203770780U (en) * | 2014-02-19 | 2014-08-13 | 森格斯输配设备(宁波)有限公司 | Gas pressure regulator |
| CN205503997U (en) * | 2016-03-16 | 2016-08-24 | 芜湖美的厨卫电器制造有限公司 | Burnt gas proportion valve |
| CN108006239A (en) * | 2016-10-28 | 2018-05-08 | 林内株式会社 | Proportioning valve |
| CN108150655A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Pressure Steam Valve seat fixing structure |
| CN108223879A (en) * | 2017-12-15 | 2018-06-29 | 河南航天液压气动技术有限公司 | Proportioning valve and its valve seat |
| CN208090016U (en) * | 2018-01-31 | 2018-11-13 | 天津德威利暖通设备有限公司 | A kind of current-limiting type gas ratio valve for gas-heating water heater |
| CN211231792U (en) * | 2019-07-03 | 2020-08-11 | 武汉欣力瑞机电设备有限公司 | Proportional valve |
-
2019
- 2019-07-03 CN CN201910594469.5A patent/CN110206932A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994027069A1 (en) * | 1993-05-19 | 1994-11-24 | Georg Fischer Rohrleitungssysteme Ag | Valve |
| JP2001317652A (en) * | 2000-05-01 | 2001-11-16 | Time Engineering Co Ltd | Electromagnetic proportional valve |
| CN101482185A (en) * | 2009-02-09 | 2009-07-15 | 郑国隆 | Gas valve with two-way proportional exhaustion |
| CN103133701A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve |
| CN203770780U (en) * | 2014-02-19 | 2014-08-13 | 森格斯输配设备(宁波)有限公司 | Gas pressure regulator |
| CN205503997U (en) * | 2016-03-16 | 2016-08-24 | 芜湖美的厨卫电器制造有限公司 | Burnt gas proportion valve |
| CN108006239A (en) * | 2016-10-28 | 2018-05-08 | 林内株式会社 | Proportioning valve |
| CN108223879A (en) * | 2017-12-15 | 2018-06-29 | 河南航天液压气动技术有限公司 | Proportioning valve and its valve seat |
| CN208090016U (en) * | 2018-01-31 | 2018-11-13 | 天津德威利暖通设备有限公司 | A kind of current-limiting type gas ratio valve for gas-heating water heater |
| CN108150655A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Pressure Steam Valve seat fixing structure |
| CN211231792U (en) * | 2019-07-03 | 2020-08-11 | 武汉欣力瑞机电设备有限公司 | Proportional valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985707A (en) * | 2019-12-23 | 2020-04-10 | 武汉欣力瑞机电设备有限公司 | Multi-channel flow divider |
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