CN202580243U - Gas proportional valve - Google Patents
Gas proportional valve Download PDFInfo
- Publication number
- CN202580243U CN202580243U CN 201220237481 CN201220237481U CN202580243U CN 202580243 U CN202580243 U CN 202580243U CN 201220237481 CN201220237481 CN 201220237481 CN 201220237481 U CN201220237481 U CN 201220237481U CN 202580243 U CN202580243 U CN 202580243U
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- CN
- China
- Prior art keywords
- valve
- gas
- air
- flow path
- proportional 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.)
- Expired - Lifetime
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a gas proportional valve which comprises a valve housing (1), wherein a gas inlet (2), a gas outlet (3) and a gas flow channel (4) for communicating the gas inlet (2) and the gas outlet (3) are arranged on the valve housing (1); and a solenoid valve core (5) for communicating the switching of the gas flow channel (4) and a proportional valve core (6) for controlling the opening of the gas flow channel (4) are sequentially arranged on the valve housing (1) along the gas flow channel (4). The gas proportional valve integrates a solenoid valve and a proportional valve by using of one valve housing, so that the gas proportional valve is compact in structure, connecting parts are saved, and the assembling is simpler and has higher efficiency, and the cost is reduced, and moreover, the probability that the gas leakage occurred is greatly reduced due to few connecting parts, therefore, the personal safety can be ensured.
Description
Technical field
The utility model relates to the valve that a kind of mechanical industry is used, and specifically is meant the gas ratio valve that a kind of fuel gas buring utensil is used.
Background technique
At present, in the prior art, the gas flow control valve of fuel gas buring utensil is divided into electronic-type and air-driven type two big classes basically; And electronic-type be divided into electronic-type moveable core type, electronic-type moving-magnetic type, electronic-type MD moving coil and electronic-type combustion gas AIR Proportional valve etc.
There is following defective in popular electronic-type moving-magnetic type gas ratio valve on China market: because magnetic switch valve body and ratio valve body are two valve bodies independently separately, need link into an integrated entity them through sealing gasket and screw.Because gas ratio valve is operated in the higher environment of temperature and humidity, use for a long time, will cause the sealing gasket leakage combustion gas of losing efficacy, bring very big hidden danger to safety.
For addressing the above problem, needing badly provides a kind of compact structure, assembling gas ratio valve simple, safe and reliable, with low cost.
The model utility content
The purpose of the utility model is to avoid deficiency of the prior art and a kind of compact structure, assembling gas ratio valve simple, safe and reliable, with low cost is provided.
The purpose of the utility model realizes through following technological scheme:
A kind of gas ratio valve is provided; Comprise valve casing; The air-flow path that valve casing is provided with suction port, air outlet and is communicated with suction port and air outlet, said valve casing upper edge air-flow path are provided with the electromagnetic valve core of control air-flow path break-make and the proportional valve spool of control air-flow path aperture successively.
Wherein, the described valve casing back side is provided with the T shape opening that communicates with air-flow path, through screw T shape backboard is arranged on the said T shape opening.
Wherein, be provided with sealing gasket between described T shape opening and the backboard.
Wherein, the one side of said sealing gasket is provided with the protruding bone around sealing.
The beneficial effect of the utility model: owing to adopted above-mentioned structure, the utility model adopt a valve casing be current collection magnet valve and Proportional valve, its compact structure; Saved union piece, made and the more simple and high efficiency of assembling reduced cost; In addition; Because connection part is few, the chance of gas leakage is extremely low, can guarantee personal safety.
Description of drawings
Utilize accompanying drawing that the utility model is described further; But the embodiment in the accompanying drawing does not constitute any restriction to the utility model; For those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to following accompanying drawing.
Fig. 1 is the three-dimensional erection drawing of gas ratio valve.
Fig. 2 is the stereogram of gas ratio valve.
Fig. 3 is the cross-sectional schematic of gas ratio valve.
In Fig. 1, include: 1---valve casing, 2---suction port, 3---air outlet, 4---air-flow path, 5---electromagnetic valve core, 6---proportional valve spool, 7---T shape opening, 8---backboard, 9---sealing gasket.
Embodiment
Be described in further detail below in conjunction with the embodiment of accompanying drawing the utility model.
To shown in Figure 3, the described gas ratio valve of the utility model comprises valve casing 1 like Fig. 1, the air-flow path 4 that valve casing 1 is provided with suction port 2, air outlet 3 and is communicated with suction port 2 and air outlet 3, and valve casing 1 is by the cast aluminium casting.Said valve casing 1 upper edge air-flow path 4 is provided with the electromagnetic valve core 5 of control air-flow path 4 break-makes and the proportional valve spool 6 of control air-flow path aperture successively.Electromagnetic valve core 5 is two, forms the two-stage valve, and the concrete structure and the working principle of electromagnetic valve core 5 and proportional valve spool 6 are existing technology, no longer applies and states.Described valve casing 1 back side is provided with the T shape opening 7 that communicates with air-flow path 4, the backboard 8 that has through screw on the said T shape opening 7, the said T shape opening 7 of backboard 8 sealings.Be provided with sealing gasket 9 between described T shape opening 7 and the backboard 8, but sealing gasket 9 enhanced leaktightness prevent gas leakage.The one side of said sealing gasket 9 is provided with the protruding bone around sealing, and protruding bone can further guarantee sealability.
The utility model working principle is following: when combustion gas gets into air-flow path 4 by suction port 2, arrive first electromagnetic valve core 5 places, after first electromagnetic valve core 5 energisings; First order valve open, combustion gas and then arrive second electromagnetic valve core 5 place, after 5 energisings of second electromagnetic valve core; Second level valve open, combustion gas get into the ratio valve pocket thus, when by controller through to flowing through the control of Proportional valve coil current size; Directly drive proportional valve spool 6; Make that aperture and electric current between ball sealer and the valve port are linear, gas flow is carried out step-less adjustment continuously, thereby gas flow is implemented proportional control.When source of the gas or power supply break down,, valve is closed automatically then through the effect of Returnning spring.
In a word; The above-mentioned preferred implementation though the utility model has been given an example; But should explain; Though those skilled in the art can carry out various variations and remodeling,, otherwise all should be included in the protection domain of the utility model only if such variation and remodeling have departed from the scope of the utility model.
Claims (4)
1. gas ratio valve; Comprise valve casing (1); The air-flow path (4) that valve casing (1) is provided with suction port (2), air outlet (3) and is communicated with suction port (2) and air outlet (3) is characterized in that: said valve casing (1) upper edge air-flow path (4) is provided with the electromagnetic valve core (5) of control air-flow path (4) break-make and the proportional valve spool (6) of control air-flow path (4) aperture successively.
2. gas ratio valve according to claim 1 is characterized in that: said valve casing (1) back side is provided with the T shape opening (7) that communicates with air-flow path (4), and said T shape opening (7) is gone up has T shape backboard (8) through screw.
3. gas ratio valve according to claim 2 is characterized in that: be provided with sealing gasket (9) between said T shape opening (7) and the backboard (8).
4. gas ratio valve according to claim 3 is characterized in that: the one side of said sealing gasket (9) is provided with the protruding bone around sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237481 CN202580243U (en) | 2012-05-25 | 2012-05-25 | Gas proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237481 CN202580243U (en) | 2012-05-25 | 2012-05-25 | Gas proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580243U true CN202580243U (en) | 2012-12-05 |
Family
ID=47249654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237481 Expired - Lifetime CN202580243U (en) | 2012-05-25 | 2012-05-25 | Gas proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580243U (en) |
-
2012
- 2012-05-25 CN CN 201220237481 patent/CN202580243U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |