CN202768938U - Gas proportional valve - Google Patents
Gas proportional valve Download PDFInfo
- Publication number
- CN202768938U CN202768938U CN 201220527282 CN201220527282U CN202768938U CN 202768938 U CN202768938 U CN 202768938U CN 201220527282 CN201220527282 CN 201220527282 CN 201220527282 U CN201220527282 U CN 201220527282U CN 202768938 U CN202768938 U CN 202768938U
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- China
- Prior art keywords
- valve
- ratio adjusting
- spool
- port
- adjusting valve
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- Expired - Fee Related
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Abstract
The utility model discloses a gas proportional valve which is composed of a switch valve and a proportioning valve. A valve body is provided with a gas inlet and a gas outlet, a gas cavity is arranged inside the valve body, the switch valve comprises a switch valve coil, a switch valve cover plate, a movable iron core, a switch valve gasket and a switch valve port, and the proportioning valve comprises a proportioning valve coil, a proportioning valve top cover plate, a magnet, a diaphragm component, a proportioning valve port, a proportioning valve core, a proportional spring, a proportioning valve gasket and a proportioning valve bottom cover plate. The gas proportional valve is characterized in that the proportioning valve core is provided with a dish-shaped bottom portion, the proportioning valve port is provided with a neck and a throat for matching with the valve body and the proportioning valve core respectively, the neck is assembled on the valve body, and the throat is matched with the dish-shaped bottom portion of the proportioning valve core. The proportioning valve core and the proportioning valve port are made of duralumin. The gas proportional valve is simple and scientific in structure, convenient and cost-saving for valve core and valve port processing, flexible in action and high in precision, and service life is prolonged greatly.
Description
Technical field
The utility model belongs to combustion gas control technique field, is specifically related to a kind of gas ratio valve.
Background technique
Gas ratio valve can be realized the ratio adjusting and control of combustion gas, air, to obtain stable combustion gas, AIR Proportional, keeps the stable combustion condition of combustion gas, improves combustion efficiency, reducing polluted emission.Gas ratio valve generally includes switch valve (or claiming stop valve) and ratio adjusting valve, switch valve control combustion gas break-make, ratio adjusting valve is by regulating the air inflow size of valve port opening control combustion gas and air, and switch valve break-make and proportional valve control all adopt solenoid controlled or adjusting.Consider the requirement that gas ratio valve must seal, switch valve and ratio adjusting valve all select nitrile butadiene rubber as sealing gasket or seal ring at dependency structure, many gas ratio valve manufacturing enterprise's ratio adjusting valve valve ports even directly make of nitrile butadiene rubber, or set up the nitrile butadiene rubber seal ring at the ratio adjusting valve spool.But because ratio adjusting valve acts frequently usually, ratio adjusting valve valve port or the Sealing durability on the spool of nitrile butadiene rubber material are relatively poor, therefore usually affect precision and the working life of gas ratio valve.
Summary of the invention
The utility model adopts the nitrile butadiene rubber material to have disadvantage as sealing material for the ratio adjusting valve spool in the existing gas ratio valve or valve port, designs and develops a kind of gas ratio valve, and its ratio adjusting valve spool and valve port all adopt the duralumin material.
A kind of gas ratio valve, consisted of by switch valve and ratio adjusting valve, switching valve body and ratio adjusting valve body are structure as a whole, suction port is established in the valve body bottom, body wall sets out gas port, valve inner is established the air cavity that connects switch valve and ratio adjusting valve, switch valve comprises the switch valve coil, the switch valve cover plate, moving iron core, the switch valve sealing gasket, the switch valve valve port, ratio adjusting valve comprises the ratio adjusting valve coil, the ratio adjusting valve head cover plate, magnet, rubber film component part, the ratio adjusting valve valve port, the ratio adjusting valve spool, proportional spring, the ratio adjusting valve sealing gasket, the ratio adjusting valve bottom plate, it is characterized in that the ratio adjusting valve spool establishes the Saucer Bottom end, center spool is established counter sink, counter sink is established protuberance in spool Saucer Bottom end, protuberance cooperates the assembling proportional spring just, tapped hole is established on ratio adjusting valve spool top, and assembling rubber film component part, ratio adjusting valve valve port cooperate valve body and spool to establish neck and throat, neck is assemblied on the valve body, and throat cooperates with spool dish end.
Described ratio adjusting valve spool and valve port adopt the duralumin material, and spool and valve port surface coat hard anodic oxidation coating.
During use, combustion gas enters switch valve through suction port, enter air cavity via the switch valve valve port again, switch valve ratio adjusting valve head cover plate is established air hole, combustion gas mixes in ratio adjusting valve with air, gas-air body passing ratio modulating valve valve port send burner through the air outlet, the control combustion gas of ratio adjusting valve spool mixing ratio modulating valve coil and air inlet amount.
Duralumin valve port neck close-fitting valve body, duralumin valve port throat cooperates spool Saucer Bottom end, valve port and spool face are processed through hardening oxidation, the surface coats the hard vaporization membrane, though the hard sealing structure of spool and valve port does not reach the positive confinement effect of rubber, but be used under the prerequisite with other rubber seal of valve body, whole Proportional valve can satisfy the purpose of not revealing combustion gas fully, Proportional valve that the more important thing is this hard sealing structure prolongs working life greatly, when less air inflow control, its sealing effect is suitable with the rubber seal effect.In addition, but the counter sink of center spool design lightening core weight, the outstanding proportional spring location that makes of counter sink in the spool Saucer Bottom end is convenient, these two kinds of designs strengthened undoubtedly the Proportional valve action flexibly and accuracy, be conducive to simultaneously prolong Proportional valve working life.
The utility model beneficial effect is: science simple in structure, and spool and valve port be easy to process, save cost, and Proportional valve flexible movements, precision are higher, and greatly prolong working life.
Description of drawings
Fig. 1 is the utility model perspective view.
Fig. 2 is that Fig. 1 ratio adjusting valve B is to cross-sectional schematic.
Fig. 3 is the local enlarged diagram of Fig. 2.
Fig. 4 is that Fig. 1 switch valve A is to cross-sectional schematic.
Among the figure, 10-switch valve, 11-switch valve coil, 12-moves iron core, 13-switch valve cover plate, 14-switch valve sealing gasket, 15-switch valve valve port, 16-suction port, 20-ratio adjusting valve, 21-ratio adjusting valve coil, 22-air cavity, 30-ratio adjusting valve head cover plate, the 31-air hole, 32-magnet, 33-rubber film component part, the 40-valve body, 41-air outlet, 50-valve port, the 51-neck, 52-throat, 60-spool, the 61-tapped hole, 62-Saucer Bottom end, 63-counter sink, the 64-protuberance, the 70-proportional spring, 80-ratio adjusting valve sealing gasket, 90-ratio adjusting valve bottom plate.
Embodiment
In conjunction with Fig. 1～Fig. 4, the utility model embodiment is described as follows:
A kind of gas ratio valve, comprise switch valve 10 and ratio adjusting valve 20, switching valve body and ratio adjusting valve body are structure as a whole, suction port 16 is established in valve body 40 bottoms, valve body 40 sidewalls set out gas port 41, the air cavity 22 that connects switch valve 10 and ratio adjusting valve 20 is established in valve body 40 inside, switch valve 10 comprises switch valve coil 11, moving iron core 12, switch valve cover plate 13, switch valve sealing gasket 14, switch valve valve port 15, ratio adjusting valve 20 comprises ratio adjusting valve coil 21, ratio adjusting valve head cover plate 30, magnet 31, rubber film component part 33, ratio adjusting valve valve port 50, ratio adjusting valve spool 60, proportional spring 70, ratio adjusting valve sealing gasket 80, ratio adjusting valve bottom plate 90, it is characterized in that ratio adjusting valve 20 spools 60 establish Saucer Bottom end 62, counter sink 63 is established at spool 60 centers, counter sink 63 is established protuberance 64 in spool Saucer Bottom end 62, protuberance 64 cooperates assembling proportional spring 70 just, tapped hole 61 is established on ratio adjusting valve spool 60 tops, assembling rubber film component part 32, ratio adjusting valve valve port 50 cooperates valve body 40 and spool 60 to establish neck 51 and throat 52, neck 51 is assemblied on the valve body 40, and throat 52 cooperates with spool 60 dish-shaped ends 62.
Described ratio adjusting valve spool 60 and valve port 50 adopt the duralumin material, and spool 60 and valve port 50 surfaces coat hard anodic oxidation coating.
During use, combustion gas enters switch valve 10 through suction port 16, enter air cavity 22 via switch valve valve port 15 again, ratio adjusting valve head cover plate 30 is established air hole 31, combustion gas mixes in ratio adjusting valve 20 with air, gas-air body passing ratio modulating valve valve port 50 41 send burner through the air outlet, ratio adjusting valve spool 60 mixing ratio modulating valve coils 21 control combustion gas and air inlet amounts.
The utility model science simple in structure, spool 60 and valve port be 50 easy to process, save costs, and Proportional valve flexible movements, precision are higher, and greatly prolong working life.
Claims (2)
1. gas ratio valve, it is made of switch valve and ratio adjusting valve, switching valve body and ratio adjusting valve body are structure as a whole, suction port is established in the valve body bottom, body wall sets out gas port, valve inner is established the air cavity that connects switch valve and ratio adjusting valve, switch valve comprises the switch valve coil, the switch valve cover plate, moving iron core, the switch valve sealing gasket, the switch valve valve port, ratio adjusting valve comprises the ratio adjusting valve coil, the ratio adjusting valve head cover plate, magnet, rubber film component part, the ratio adjusting valve valve port, the ratio adjusting valve spool, proportional spring, the ratio adjusting valve sealing gasket, the ratio adjusting valve bottom plate, it is characterized in that the ratio adjusting valve spool establishes the Saucer Bottom end, center spool is established counter sink, counter sink is established protuberance in spool Saucer Bottom end, protuberance cooperates the assembling proportional spring just, tapped hole is established on ratio adjusting valve spool top, and assembling rubber film component part, ratio adjusting valve valve port cooperate valve body and spool to establish neck and throat, neck is assemblied on the valve body, and throat cooperates with spool dish end.
2. described gas ratio valve according to claim 1 is characterized in that described ratio adjusting valve spool and valve port adopt the duralumin material, and spool and valve port surface coat hard anodic oxidation coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527282 CN202768938U (en) | 2012-09-28 | 2012-09-28 | Gas proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527282 CN202768938U (en) | 2012-09-28 | 2012-09-28 | Gas proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768938U true CN202768938U (en) | 2013-03-06 |
Family
ID=47775513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220527282 Expired - Fee Related CN202768938U (en) | 2012-09-28 | 2012-09-28 | Gas proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728842A (en) * | 2015-02-06 | 2015-06-24 | 宁波市甬深电器有限公司 | Forced full-premixing fuel gas combustion device enabling fuel gas to be completely combusted |
| CN105626874A (en) * | 2016-03-16 | 2016-06-01 | 芜湖美的厨卫电器制造有限公司 | Gas proportional valve |
-
2012
- 2012-09-28 CN CN 201220527282 patent/CN202768938U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728842A (en) * | 2015-02-06 | 2015-06-24 | 宁波市甬深电器有限公司 | Forced full-premixing fuel gas combustion device enabling fuel gas to be completely combusted |
| CN104728842B (en) * | 2015-02-06 | 2017-01-18 | 宁波市甬深电器有限公司 | Forced full-premixing fuel gas combustion device enabling fuel gas to be completely combusted |
| CN105626874A (en) * | 2016-03-16 | 2016-06-01 | 芜湖美的厨卫电器制造有限公司 | Gas proportional valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |