CN111911682A - Gas proportional valve with movable iron core and gas water heater - Google Patents

Gas proportional valve with movable iron core and gas water heater Download PDF

Info

Publication number
CN111911682A
CN111911682A CN202010763561.2A CN202010763561A CN111911682A CN 111911682 A CN111911682 A CN 111911682A CN 202010763561 A CN202010763561 A CN 202010763561A CN 111911682 A CN111911682 A CN 111911682A
Authority
CN
China
Prior art keywords
valve
iron core
proportional valve
adjusting
assembly
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
Application number
CN202010763561.2A
Other languages
Chinese (zh)
Inventor
卢楚鹏
刘桦
谢谊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Vanward New Electric Co Ltd
Original Assignee
Guangdong Vanward New Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Vanward New Electric Co Ltd filed Critical Guangdong Vanward New Electric Co Ltd
Priority to CN202010763561.2A priority Critical patent/CN111911682A/en
Publication of CN111911682A publication Critical patent/CN111911682A/en
Pending legal-status Critical Current

Links

Images

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
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
    • 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
    • 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
    • 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
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention discloses a movable iron core gas proportional valve which comprises a proportional valve part, wherein the proportional valve part comprises a proportional valve body, a valve assembly, an adjusting assembly, a spiral spring and a gas outlet joint, and the proportional valve body is provided with a valve port, a first gas outlet and a mounting port opposite to the first gas outlet; the air outlet joint is fixedly arranged at the first air outlet in a sealing way; the valve assembly is arranged in the proportional valve body; one end of the valve assembly is arranged at the valve port; one end of the spiral spring is pressed against the air outlet joint, and the other end of the spiral spring is pressed against one end of the air valve component; the adjusting assembly is fixedly arranged on the mounting port in a sealing manner and is used for adjusting the position of the valve assembly so as to adjust the opening degree of the valve port; the movable iron core gas proportional valve in this application can promote security and the hot water that user's hot water used and experience and can improve the stability of burning operating mode.

Description

Gas proportional valve with movable iron core and gas water heater
Technical Field
The invention relates to the technical field of proportional valves, in particular to a movable iron core gas proportional valve and a gas water heater.
Background
As shown in fig. 1, a moving iron core gas proportional valve is shown. In order to ensure the minimum secondary pressure of the fuel gas outlet, the valve S1 of the proportional control valve is normally open with the valve port S2 of the valve body; the state of the valve S1 is maintained by its gravity and the supporting force of the plunger S3, and the initial position of the plunger S3 is controlled by the upper spring S4, the lower spring S5 and the adjusting nut S6. During operation, the position of the movable iron core S3 is adjusted by adjusting the current of the coil S6, so that the clearance between the valve S1 and the valve port S2, namely the opening degree of the movable iron core gas proportional valve is adjusted.
Because an initial clearance exists between the valve and the valve port, the valve has the tendency of moving along the direction close to the valve port only by the gravity of the valve, and is easy to skew in a finished product, so that the initial clearance is increased. When the movable iron core gas proportional valve is applied to certain gas water heater models (such as an air injection pipe without a section valve, an air injection pipe directly connected with the proportional valve and the like), the following conditions occur: at the moment of ignition, after the proportional control valve is electrified and opened, a large amount of fuel gas quickly flows into the valve body cavity S7 and has certain impact force on the valve S1, so that a gap between the valve S1 and the valve port S2 is further enlarged, the fuel gas enters a combustion chamber from the valve port S2 and exceeds a fuel gas deflagration critical point to cause deflagration or detonation, and the hot water using experience of a user is poor and has potential safety hazards.
Disclosure of Invention
The invention aims to solve the technical problem of providing a movable iron core gas proportional valve and a gas water heater, which have good pressure stabilizing effect and effectively improve the hot water use safety and hot water use experience of users.
The technical problem is solved by the following technical scheme:
the invention provides a movable iron core gas proportional valve which comprises a proportional valve part, wherein the proportional valve part comprises a proportional valve body, a valve assembly, an adjusting assembly, a spiral spring and a gas outlet joint, and the proportional valve body is provided with a valve port, a first gas outlet and a mounting port opposite to the first gas outlet; the air outlet joint is fixedly arranged at the first air outlet in a sealing way; the valve assembly is arranged in the proportional valve body; one end of the valve assembly is arranged at the valve port; one end of the spiral spring is pressed against the air outlet joint, and the other end of the spiral spring is pressed against one end of the air valve component; the adjusting assembly is fixedly arranged on the mounting opening in a sealing mode and used for adjusting the position of the valve assembly so as to adjust the opening degree of the valve port.
Compared with the movable iron core gas proportional valve in the background technology, the movable iron core gas proportional valve in the application has the advantages that the spiral spring is arranged between the gas outlet connector and the valve component, the two ends of the spiral spring are respectively abutted against the gas outlet connector and the valve component, one end, positioned at the valve port, of the valve component is extruded by the spiral spring, on one hand, the valve component can be in a stable state at the beginning and can not be inclined relatively, and a stable initial gap is ensured, on the other hand, at the moment of ignition of the gas water heater, even if the gas pressure entering the movable iron core gas proportional valve is increased suddenly, the valve can also enable the valve port to be kept at an initial opening stably under the action of the combined action force of the gravity of the valve and the elasticity of the spiral spring, so the pressure stabilizing effect is good, and the phenomenon that a large amount of gas flows out of the proportional valve rapidly, the safety and hot water use experience of a user are improved; and the structure can ensure that the central line of the valve assembly is consistent with the central line of the valve port in the installation process or under the impact of air flow, so that the movable iron core gas proportional valve can stably output gas pressure, and the stability of the combustion working condition is improved.
In one embodiment, the valve assembly comprises a mandril, and a valve and a sealing diaphragm which are respectively sleeved at two ends of the mandril, wherein the valve is positioned at the valve opening and is abutted against the other end of the spiral spring; the adjusting assembly is fixedly arranged on the proportional valve body in a sealing mode through the sealing diaphragm and is used for adjusting the position of the ejector rod so as to adjust the opening degree of the valve port.
In one embodiment, the coil spring is in a tower shape or a column shape.
In one embodiment, one surface of the valve is provided with a positioning boss, and the coil spring is sleeved on the positioning boss, so that the valve assembly and the coil spring are kept unchanged in relative position, the valve assembly is more favorable for keeping the central line of the valve assembly consistent with the central line of the valve more stably, and the pressure stabilizing effect of the movable iron core gas proportional valve at the opening moment is improved.
In one embodiment, the adjusting assembly comprises a gland, a bracket, an iron core, a coil assembly, an adjusting sleeve, an adjusting spring and an adjusting nut, wherein the adjusting spring and the adjusting nut are arranged in the adjusting sleeve; the coil assembly and the adjusting sleeve are respectively and fixedly arranged on the bracket, and the inner wall of the adjusting sleeve is provided with an internal thread matched with the external thread of the adjusting nut; the iron core can be movably inserted into the coil assembly, and one end of the iron core extends into the adjusting sleeve to be abutted against the adjusting spring; the support is fixedly arranged on the proportional valve body through the gland, and the periphery of the gland is abutted against the periphery of the sealing diaphragm so as to enable the adjusting assembly to be connected with the proportional valve body in a sealing manner; one end of the ejector rod, which is far away from the valve, penetrates out of the gland and is abutted against the other end of the iron core, and therefore the opening degree of the valve port can be corrected or adjusted by adjusting the depth of the iron core inserted into the coil assembly in the using process.
In one embodiment, the movable iron core gas proportional valve further comprises a stop valve part, wherein the stop valve part comprises a stop valve body, a first stop valve and a second stop valve; the stop valve body is provided with a second air outlet; the second air outlet is connected with the air inlet of the proportional valve body in a sealing manner; the first stop valve and the second stop valve are respectively arranged on a gas channel of the stop valve body and used for communicating or closing the gas channel, and the adjusting assembly does not need to bear the sealing effect by arranging the first stop valve and the second stop valve, so that the safety performance is effectively improved, and the gas leakage phenomenon is avoided.
In one embodiment, the first stop valve and the second stop valve are both solenoid valves, but electric valves may be used.
In one embodiment, the movable iron core gas proportional valve further comprises an air inlet connector, wherein the air inlet connector is arranged at an air inlet of the stop valve body and is integrally formed with the stop valve body, and the design has the advantage that the risk of air leakage is effectively avoided.
In one of them embodiment, the air inlet joint with it all is equipped with the pressure test mouth to give vent to anger to connect, be equipped with the internal thread in the pressure test mouth to through the screw-thread fit with the screw and sealed the pad realization sealed, the benefit of design like this is, can test the gas pressure of gas proportional valve inlet end and the gas pressure of giving vent to anger the end, and the pressure test mouth seals simple operation through the sealed pad realization of screw cooperation.
A gas water heater comprises the movable iron core gas proportional valve.
The movable iron core gas proportional valve is included, so that the technical effect is brought by the movable iron core gas proportional valve and is the same as that of the movable iron core gas proportional valve, and further description is omitted.
It should be noted that, in the present application, the gas water heater includes, but is not limited to, a wall-hanging stove and a water heater.
Drawings
FIG. 1 is a longitudinal sectional view of a gas proportional valve with a movable iron core in the prior art;
FIG. 2 is a longitudinal sectional view of the moving iron core gas proportional valve of the present invention;
fig. 3 is a partial exploded view of the moving core gas proportional valve of the present invention.
Description of reference numerals: 1. a proportional valve section; 10. a proportional valve body; 100. a valve port; 101. a first air outlet; 102. an installation port; 11. a valve assembly; 110. a top rod; 111. an air valve; 1110. positioning the boss; 112. sealing the diaphragm; 12. an adjustment assembly; 120. a gland; 121. a support; 122. an iron core; 123. a coil assembly; 124. an adjustment sleeve; 125. adjusting the spring; 126. adjusting the nut; 13. a coil spring; 14. an air outlet joint; 2. a cut-off valve portion; 20. a stop valve body; 21. a first shut-off valve; 22. a second stop valve; 3. an air inlet joint; 4. a pressure test port.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 2-3, the application discloses a moving iron core gas proportional valve, which includes a proportional valve portion 1, where the proportional valve portion 1 includes a proportional valve body 10, a valve assembly 11, an adjusting assembly 12, a coil spring 13 and an air outlet joint 14, and the proportional valve body 10 is provided with a valve port 100, a first air outlet 101 and a mounting port 102 opposite to the first air outlet 101; the air outlet joint 14 is fixedly installed at the first air outlet 101 in a sealing manner;
the valve assembly 11 is arranged in the proportional valve body 10 and comprises a top rod 110, a valve 111 and a sealing diaphragm 112, wherein the valve 111 is sleeved at one end of the top rod 110, and the sealing diaphragm 112 is sleeved at the other end of the top rod 110; one end of the valve assembly 11 is disposed at the valve port 100, specifically, the valve 111 is disposed at the valve port 100, one end of the coil spring 13 abuts against the air outlet joint 14, and the other end abuts against the valve 111;
the adjusting assembly 12 is fixedly and hermetically mounted on the mounting port 102, specifically, is fixedly and hermetically mounted on the mounting port 102 through the sealing diaphragm 112, and is used for adjusting the position of the valve assembly 11 to achieve adjustment of the opening degree of the valve port 100, and specifically includes a gland 120, a bracket 121, an iron core 122, a coil assembly 123, an adjusting sleeve 124, and an adjusting spring 125 and an adjusting nut 126 which are disposed in the adjusting sleeve 124; the coil assembly 123 and the adjusting sleeve 124 are respectively and fixedly mounted on the bracket 121, and an inner wall of the adjusting sleeve 124 is provided with an inner thread matched with an outer thread of the adjusting nut 126; the iron core 122 is movably inserted into the coil assembly 123, and one end of the iron core 122 extends into the adjusting sleeve 124 to abut against the adjusting spring 125; the bracket 121 is fixedly mounted on the mounting port 102 through the gland 120;
the periphery of the gland 120 presses against the periphery of the sealing diaphragm 112 to sealingly couple the adjustment assembly 12 to the mounting port 102; the other end of the top rod 110 passes through the gland 120 and abuts against the other end of the iron core 122.
On the basis of the above structure, since the coil spring 13 is provided between the outlet tap 14 and the valve 111, the two ends of the coil spring 13 are respectively abutted against the air outlet joint 14 and the air valve 111, and the air valve 111 is pressed by the coil spring 13, so that on one hand, the air valve assembly 11 is in a stable state at the beginning, and relatively not skew, and ensure stable initial clearance, on the other hand, therefore at the moment of ignition of the gas water heater, even if the gas pressure entering the moving iron core gas proportional valve is suddenly increased, the valve port 100 can be stably maintained at the initial opening degree by the common action of the self gravity and the elastic force of the spiral spring 13 of the valve port 111, therefore, the pressure stabilizing effect is good, deflagration or roaring caused by that a large amount of gas quickly flows out of the proportional valve and enters the combustion chamber to exceed the gas deflagration critical point is avoided, and the safety and hot water use experience of users are improved; and the structure can ensure that the central line of the valve component 11 is consistent with the central line of the valve port 100 in the installation process or under the impact of air flow, so that the movable iron core gas proportional valve can stably output gas pressure and improve the stability of the combustion working condition.
The applicant compares the gas proportional valve (hereinafter referred to as old structure) of the background art with the gas proportional valve (hereinafter referred to as new structure) of the present scheme, in which the coil spring 13 is disposed between the gas outlet joint 14 and the valve 111, to perform the test of the outlet pressure at the moment of ignition, and the specific test data are shown in the following table:
Figure BDA0002613744010000051
from the above table, it can be seen that through a plurality of sets of comparison tests, at the moment of ignition, when the inlet pressure is 2000Pa or 3000Pa, the outlet pressure of the conventional gas proportional valve is generally about 1200Pa, and the outlet pressure is high, while the outlet pressure of the gas proportional valve of the scheme is generally about 300Pa, and the outlet pressure is low. The gas proportional valve adopting the scheme can effectively reduce the outlet pressure at the moment of ignition.
In the above solution, by rotating the adjusting nut 126, the compression state of the coil spring 13 and the adjusting spring 125 is changed, so as to define the initial position of the iron core 122 and the valve assembly 11, and adjust the initial opening degree of the valve port 100.
Preferably, in this embodiment, the coil spring 13 has a tower shape, which enables the valve assembly 11 to more stably maintain its center line in line with the center line of the valve. The coil spring 13 may also be provided in a cylindrical shape.
Further, in this embodiment, a positioning boss 1110 is disposed on one surface of the valve 111, and the coil spring 13 is sleeved on the positioning boss 1110, so that the advantage of the design is that the relative position between the valve assembly 11 and the coil spring 13 is kept unchanged, which is more beneficial to keeping the center line of the valve assembly 11 consistent with the center line of the valve more stably, and improving the pressure stabilizing effect of the moving iron core gas proportional valve at the moment of opening the valve.
In the present embodiment, the gas proportional valve with movable iron core further comprises a stop valve part 2, wherein the stop valve part 2 comprises a stop valve body 20, a first stop valve 21 and a second stop valve 22; the stop valve body 20 is provided with a second air outlet (not marked in the figure); the second air outlet is hermetically connected with the air inlet of the proportional valve body 10; the first stop valve 21 and the second stop valve 22 are respectively arranged on a gas channel of the stop valve body 20 and used for communicating or closing the gas channel, and by arranging the first stop valve 21 and the second stop valve 22, the adjusting assembly 12 does not need to bear the sealing effect, the safety performance is effectively improved, and the gas leakage phenomenon is avoided.
Preferably, in the present embodiment, the first cut-off valve 21 and the second cut-off valve 22 are both solenoid valves.
Further, in this embodiment, this kind of move iron core gas proportional valve still includes air inlet joint 3, air inlet joint 3 locate stop valve body 20's air inlet department to with stop valve body 20 integrated into one piece, the benefit of design like this is effectively to stop the risk of gas leakage.
Further, in this embodiment, the inlet connection 3 with the joint 14 of giving vent to anger all is equipped with pressure test mouth 4, be equipped with the internal thread in the pressure test mouth 4 to screw-thread fit and sealed the pad realization through with the screw are sealed, and the benefit of design like this is, can test the gas pressure of gas proportional valve inlet end and the gas pressure of the end of giving vent to anger, and pressure test mouth 4 seals through the sealed pad realization of screw cooperation, easy operation.
A gas water heater comprises the movable iron core gas proportional valve.
The movable iron core gas proportional valve is included, so that the technical effect is brought by the movable iron core gas proportional valve and is the same as that of the movable iron core gas proportional valve, and further description is omitted. In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The detailed description of the embodiments above only expresses several embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a move iron core gas proportional valve which characterized in that: the proportional valve comprises a proportional valve body, a valve assembly, an adjusting assembly, a spiral spring and an air outlet joint, wherein the proportional valve body is provided with a valve port, a first air outlet and a mounting port opposite to the first air outlet; the air outlet joint is fixedly arranged at the first air outlet in a sealing way; the valve assembly is arranged in the proportional valve body; one end of the valve assembly is arranged at the valve port; one end of the spiral spring is pressed against the air outlet joint, and the other end of the spiral spring is pressed against one end of the air valve component; the adjusting assembly is fixedly arranged on the mounting opening in a sealing mode and used for adjusting the position of the valve assembly so as to adjust the opening degree of the valve port.
2. The gas proportional valve with movable iron core according to claim 1, characterized in that: the valve assembly comprises a push rod valve and a sealing diaphragm, the valve is sleeved at one end of the push rod, and the sealing diaphragm is sleeved at the other end of the push rod; the valve is positioned at the valve port and is abutted against the other end of the spiral spring; the adjusting assembly is fixedly arranged on the mounting opening in a sealing mode through the sealing diaphragm and is used for adjusting the position of the ejector rod so as to adjust the opening degree of the valve port.
3. The gas proportional valve with movable iron core as claimed in claim 2, wherein: the spiral spring is in a tower shape or a column shape.
4. The gas proportional valve with movable iron core according to claim 3, characterized in that: one side of the valve is provided with a positioning boss, and the positioning boss is sleeved with the spiral spring.
5. The gas proportional valve with movable iron core as claimed in claim 2, wherein: the adjusting assembly comprises a gland, a bracket, an iron core, a coil assembly, an adjusting sleeve, an adjusting spring and an adjusting nut, wherein the adjusting spring and the adjusting nut are arranged in the adjusting sleeve; the coil assembly and the adjusting sleeve are respectively and fixedly arranged on the bracket, and the inner wall of the adjusting sleeve is provided with an internal thread matched with the external thread of the adjusting nut; the iron core can be movably inserted into the coil assembly, and one end of the iron core extends into the adjusting sleeve to be abutted against the adjusting spring; the support is fixedly arranged on the proportional valve body through the gland, and the periphery of the gland is abutted against the periphery of the sealing diaphragm so as to enable the adjusting assembly to be in sealing connection with the mounting opening; the other end of the ejector rod penetrates through the gland and is abutted to the other end of the iron core.
6. The gas proportional valve with movable iron core according to claim 1, characterized in that: the stop valve further comprises a stop valve part, wherein the stop valve part comprises a stop valve body, a first stop valve and a second stop valve; the stop valve body is provided with a second air outlet which is hermetically connected with the air inlet of the proportional valve body; the first stop valve and the second stop valve are respectively arranged on a gas channel of the stop valve body and used for communicating or closing the gas channel.
7. The gas proportional valve with movable iron core as claimed in claim 6, wherein: the first stop valve and the second stop valve are both solenoid valves.
8. The gas proportional valve with movable iron core as claimed in claim 6, wherein: the stop valve further comprises an air inlet connector, wherein the air inlet connector is arranged at an air inlet of the stop valve body and is integrally formed with the stop valve body.
9. The gas proportional valve with movable iron core as claimed in claim 6, wherein: the air inlet connector and the air outlet connector are provided with pressure testing ports, internal threads are arranged in the pressure testing ports, and sealing is achieved through thread matching with screws and sealing gaskets.
10. A gas water heater, its characterized in that: gas proportional valve comprising a moving core according to any of claims 1 to 9.
CN202010763561.2A 2020-07-31 2020-07-31 Gas proportional valve with movable iron core and gas water heater Pending CN111911682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010763561.2A CN111911682A (en) 2020-07-31 2020-07-31 Gas proportional valve with movable iron core and gas water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010763561.2A CN111911682A (en) 2020-07-31 2020-07-31 Gas proportional valve with movable iron core and gas water heater

Publications (1)

Publication Number Publication Date
CN111911682A true CN111911682A (en) 2020-11-10

Family

ID=73287036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010763561.2A Pending CN111911682A (en) 2020-07-31 2020-07-31 Gas proportional valve with movable iron core and gas water heater

Country Status (1)

Country Link
CN (1) CN111911682A (en)

Similar Documents

Publication Publication Date Title
CN106051214A (en) Water mixing valve capable of adjusting water temperature automatically
CN110296537B (en) Water inlet connector with steady flow pressure relief for gas water heater
CN206803238U (en) A kind of combustion gas synchronous valve of kitchen range
CN212718239U (en) Gas proportional valve with movable iron core and gas water heater
CN111911682A (en) Gas proportional valve with movable iron core and gas water heater
US11668406B2 (en) Gas pressure regulator
CN210425581U (en) Water inlet interface with steady flow pressure relief for gas water heater
CN201391633Y (en) Non-return structure ball valve
CN205877271U (en) Automatic adjust muddy water valve of temperature
CN110486511A (en) A kind of pressure regulator valve
CN210196579U (en) Gas valve integrating flameout protection and pressure stabilization
CN206054850U (en) A kind of high pressure liquid level tester pressure limiting valve
CN211667158U (en) Flow control valve
CN209781820U (en) Novel gas regulating valve
CN203702373U (en) Pressure reducer of gas-fueled vehicle
CN208900256U (en) Check valve-type fuel oil for vehicles pressure regulator
CN202165619U (en) Thermostatic valve
CN207080662U (en) Combustion gas high-pressure and overflowing stop valve
CN214946400U (en) Sliding sleeve type pressure regulating mechanism
CN212361613U (en) Gas pressure regulator
CN216896045U (en) Automatic temperature control water flow device
CN205036946U (en) Gas pressure regulator
CN220622762U (en) Electronic expansion valve
CN216843295U (en) Safety valve of electric water heater
CN211738144U (en) Valve core structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination