CN209743720U - Gas proportional valve - Google Patents
Gas proportional valve Download PDFInfo
- Publication number
- CN209743720U CN209743720U CN201920296260.6U CN201920296260U CN209743720U CN 209743720 U CN209743720 U CN 209743720U CN 201920296260 U CN201920296260 U CN 201920296260U CN 209743720 U CN209743720 U CN 209743720U
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- valve
- proportional valve
- valve core
- proportional
- solenoid valve
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Abstract
The utility model discloses a gas proportional valve, including valve casing, solenoid valve subassembly, proportional valve subassembly, sealed pad and backplate, its characterized in that: the valve casing bottom be equipped with the air inlet, the upper end is equipped with the gas outlet, air inlet and gas outlet pass through airflow channel and connect on a straight line direction, the valve casing openly on along airflow channel, be equipped with solenoid valve subassembly and the proportional valve subassembly of control airflow channel break-make in proper order, airflow channel be the air current circulation bend of S type, solenoid valve subassembly is close the air inlet end, proportional valve subassembly is close the gas outlet end, solenoid valve subassembly includes first solenoid valve core and second solenoid valve core, proportional valve subassembly includes the proportional valve core of control airflow channel aperture, first solenoid valve core and second solenoid valve core parallel arrangement form two-stage valve, proportional valve core establishes the top at first solenoid valve core and second solenoid valve core. The utility model discloses compact structure, reasonable, the consumptive material is few, and the assembly is simple, high-efficient etc.
Description
Technical Field
The utility model relates to a valve, especially a gas proportional valve.
Background
Currently, in the prior art, gas flow control valves of gas combustion appliances are basically classified into two major types, electronic type and pneumatic type; the electronic type is divided into an electronic type moving core type, an electronic type moving magnetic type, an electronic type moving coil type and an electronic type gas/air proportional valve.
The electronic moving-magnet gas proportional valve popular in the market of China in the past has the following defects: because the electromagnetic switch valve body and the proportional valve body are respectively independent two valve bodies, the electromagnetic switch valve body and the proportional valve body need to be connected into a whole through a sealing gasket and a screw. Because the gas proportional valve works in an environment with higher temperature and humidity, the sealing gasket is invalid and gas is leaked after being used for a long time, and great hidden danger is brought to safety.
However, the patent numbers are: 201220237481.4 gas proportional valve adopts a valve casing, namely, integrates an electromagnetic valve and a proportional valve, has compact structure, saves the sealing gasket and screw connecting parts of two independent valve bodies, makes the assembly simpler and more efficient, reduces the cost, has less connecting parts, has extremely low gas leakage chance, can ensure the personal safety, but has complex structure, more material consumption, large occupied space and difficult installation because the gas outlet and the gas inlet of the structure are arranged on the mutually staggered positions; meanwhile, the screws are arranged in all directions to connect related parts, so that the automatic manipulator can complete assembly only by rotating the valve body in six directions during working, the automatic production efficiency is relatively low, and meanwhile, complicated working steps are added.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome not enough that exists among the above-mentioned prior art, provide a gas proportional valve, compact structure, reasonable, the consumptive material is few, assembles simple, high efficiency etc..
The technical scheme of the utility model is that: the utility model provides a gas proportional valve, includes valve casing, solenoid valve subassembly, proportional valve subassembly, sealed pad and backplate, its characterized in that: the valve comprises a valve shell, wherein the bottom end of the valve shell is provided with an air inlet, the upper end of the valve shell is provided with an air outlet, the air inlet and the air outlet are connected in a straight line direction through an air flow channel, the front surface of the valve shell is sequentially provided with an electromagnetic valve component and a proportional valve component which are used for controlling the on-off of the air flow channel along the air flow channel, the air flow channel is an S-shaped air flow channel bend, the electromagnetic valve component is close to the air inlet end, the proportional valve component is close to the air outlet end, the electromagnetic valve component comprises a first electromagnetic valve core and a second electromagnetic valve core, the proportional valve component comprises a proportional valve core which is used for controlling the opening degree of the air flow channel, the first electromagnetic valve core and the second electromagnetic valve core are arranged in parallel and form a two-stage valve, the proportional valve core is arranged above the first electromagnetic valve core and, and a sealing gasket is arranged between the T-shaped opening and the back plate.
One side of the sealing gasket is provided with a convex rib which is closed in a surrounding mode, and the convex rib can further guarantee the sealing performance.
The valve casing is formed by aluminum alloy casting.
The utility model has the advantages that: the air inlet and the air outlet are arranged at two ends of one line direction through the integrally formed straight-through valve casing, the airflow channel 4 is an S-shaped airflow circulation bend, the structure is optimized, materials are saved, the shape is reduced, the occupied space is reduced, and the air conditioner is more convenient to install and the like.
The valve shell, the electromagnetic valve and the proportional valve are integrated into a whole, so that the structure is compact and practical; the electromagnetic valve, the proportional valve and the back plate are installed from the side face of the integrally formed valve shell respectively, connecting screws are reduced, connecting parts are few, assembly is simple, cost is low, and efficiency is high.
Drawings
FIG. 1 is a perspective assembly view of the present invention;
Fig. 2 is the schematic view of the structure of the air flow passage inside the valve casing of the present invention.
In the figure: the valve comprises a valve shell 1, an air inlet 2, an air outlet 3, an air flow channel 4, a solenoid valve assembly 5, a first solenoid valve core 51, a second solenoid valve core 52, a proportional valve assembly 6, a proportional valve core 61, a sealing gasket 7, a back plate 8 and a screw 9.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, a gas proportional valve, includes valve casing 1, solenoid valve subassembly 5, proportional valve subassembly 6, sealed pad 7 and backplate 8, 1 bottom of valve casing be equipped with air inlet 2, the upper end is equipped with gas outlet 3, air inlet 2 and gas outlet 3 pass through airflow channel 4 and connect on a straight line direction to reach and optimize structure, save material's effect. The valve casing 1 is formed by casting aluminum alloy, the front surface of the valve casing 1 is sequentially provided with an electromagnetic valve assembly 5 and a proportional valve assembly 6 along an airflow channel 4, the airflow channel 4 is an S-shaped airflow circulation bend, the electromagnetic valve assembly 5 is close to an air inlet 2 end, the proportional valve assembly 6 is close to an air outlet 3 end, the electromagnetic valve assembly 5 comprises a first electromagnetic valve core 51 and a second electromagnetic valve core 52, the proportional valve assembly 6 comprises a proportional valve core 61 for controlling the opening degree of the airflow channel 4, the first electromagnetic valve core 51 and the second electromagnetic valve core 52 are arranged in parallel and form a two-stage valve, the proportional valve core 61 is arranged above the first electromagnetic valve core 51 and the second electromagnetic valve core 52, and the specific structures and working principles of the first electromagnetic valve core 51, the second electromagnetic valve core 52 and the proportional valve core 61 are the prior art and are not covered. The back of the valve casing 1 is provided with a T-shaped opening communicated with the air flow channel 4, a back plate 8 is fixed on the T-shaped opening through a screw 9, and the T-shaped opening is sealed by the back plate 8. A sealing gasket 7 is arranged between the T-shaped opening and the back plate 8, and the sealing gasket 7 can strengthen sealing and prevent air leakage. One side of the sealing gasket 7 is provided with a surrounding closed convex rib, the convex rib can further ensure the sealing performance, and meanwhile, the front side surface and the back side surface of the shell 1 are respectively connected with the electromagnetic valve component 5, the proportional valve component 6, the sealing gasket 7 and the back plate 8 through screws 9, so that the assembly surface is reduced, and the assembly working efficiency is greatly improved.
The working principle is as follows: when fuel gas enters through the gas inlet 2 and enters the first electromagnetic valve core 51 along the gas flow channel 4, the first-stage valve is opened after the first electromagnetic valve core 51 is electrified, the fuel gas enters the second-stage electromagnetic valve core 52 along the gas flow channel 4, the second-stage valve is opened after the second-stage electromagnetic valve core 52 is electrified, the fuel gas continues to enter the proportional valve cavity along the gas flow channel 4, and when the controller controls the current flowing through the coil of the proportional valve, the proportional valve core 61 is directly driven, so that the opening degree between the sealing ball and the valve port is in a linear relation with the current, the fuel gas flow is continuously and steplessly regulated, and the proportional control is implemented on the fuel gas flow. When the air source or the power supply fails, the valve is automatically closed under the action of the return spring.
In summary, although the present invention has been described with reference to the preferred embodiments, it should be noted that, although various changes and modifications can be made by those skilled in the art, unless such changes and modifications depart from the scope of the present invention, they should be construed as being included therein.
Claims (3)
1. The utility model provides a gas proportional valve, includes valve casing (1), solenoid valve subassembly (5), proportional valve subassembly (6), sealed pad (7) and backplate (8), its characterized in that: the air inlet valve is characterized in that an air inlet (2) is arranged at the bottom end of the valve casing (1), an air outlet (3) is arranged at the upper end of the valve casing, the air inlet (2) and the air outlet (3) are connected in a straight line direction through an air flow channel (4), an electromagnetic valve component (5) and a proportional valve component (6) for controlling the on-off of the air flow channel (4) are sequentially arranged on the front surface of the valve casing (1) along the air flow channel (4), the air flow channel (4) is an S-shaped air flow circulation curve, the electromagnetic valve component (5) is close to the air inlet (2) end, the proportional valve component (6) is close to the air outlet (3) end, the electromagnetic valve component (5) comprises a first electromagnetic valve core (51) and a second electromagnetic valve core (52), the proportional valve component (6) comprises a proportional valve core (61) for controlling the opening degree of the air flow channel, the proportional valve core (61) is arranged above the first electromagnetic valve core (51) and the second electromagnetic valve core (52), a T-shaped opening communicated with the air flow channel (4) is formed in the back face of the valve shell (1), a back plate (8) is fixed on the T-shaped opening through a screw (9), the T-shaped opening is sealed by the back plate (8), and a sealing gasket (7) is arranged between the T-shaped opening and the back plate (8).
2. A gas proportioning valve according to claim 1 wherein: one side of the sealing gasket (7) is provided with a convex rib which is closed in a surrounding mode, and the convex rib can further guarantee the sealing performance.
3. A gas proportioning valve according to claim 1 or 2 wherein: the valve casing (1) is formed by casting aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296260.6U CN209743720U (en) | 2019-03-09 | 2019-03-09 | Gas proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296260.6U CN209743720U (en) | 2019-03-09 | 2019-03-09 | Gas proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743720U true CN209743720U (en) | 2019-12-06 |
Family
ID=68716085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920296260.6U Active CN209743720U (en) | 2019-03-09 | 2019-03-09 | Gas proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743720U (en) |
-
2019
- 2019-03-09 CN CN201920296260.6U patent/CN209743720U/en active Active
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