CN209818812U - Gas control valve - Google Patents

Abstract

The utility model discloses a gas control valve, which comprises a valve body and an electromagnetic valve. The valve body is provided with an air inlet and several air outlets, and several solenoid valves are provided according to the needs. Composition, because the solenoid valve has a double-coil structure, when the power is applied, the magnetic force generated by the two coils can be superimposed, so that the solenoid valve can be kept in the pull-in state with a small flow rate, reducing power consumption.

Description

A gas control valve

technical field

The utility model relates to a gas control valve, in particular to a gas control valve which adopts a double-coil electromagnetic valve to realize safety protection.

Background technique

The fireplace is a safe and efficient traditional heating equipment. In addition to the heating function, the fireplace can also be used as a decoration, which has good ornamental value. And gas fireplace is subjected to liking of more and more consumers because of its convenience, and along with the raising of people's living standard, is no longer satisfied with manual operation, and the gas control valve of remote control is used more and more generally thereupon.

Because various failures may occur when the gas fireplace is working, such as flame extinguishment, etc., it is necessary to ensure that the gas fireplace is still safe, and the gas will not be still inhaled because the flame is extinguished, which requires the gas control valve to When a failure occurs, cut off the gas supply in time to ensure that the product will not affect the safety of the user and the surrounding environment. Generally, the gas control valve realizes gas safety cut-off through the solenoid valve on the gas control valve and related detection devices, that is, when the detection element detects an abnormal situation, it immediately sends an instruction to the gas control valve, forcing the gas control valve to The solenoid valve on the switch cuts off the gas supply, making the gas fireplace stop working.

However, in the existing solenoid valve, in order to generate a large enough suction force, the coil needs to ensure a certain number of ampere-turns. However, due to the size limitation on the gas control valve, it is impossible to make the volume very large, so it is necessary to pass through the coil. Only with a relatively large current can the work be realized. In this way, the energy consumption is very fast, and the consumed energy is converted into heat energy. The solenoid coil is prone to heat and heat after working for a long time, which will cause accelerated aging of related components on the solenoid valve or even damage.

In addition, when used in some specific environments, such as in the field or outdoors, when there is no or inconvenient mains power supply, when it is necessary to use batteries as power supply sources, due to the limited energy storage of batteries, it cannot provide a large amount of energy for a long time Consumption, which brings certain limitations to the use of gas control valves.

Utility model content

The technical problem to be solved by the utility model is to provide a gas control valve. The utility model not only enables the gas control valve to achieve safety protection by adopting a double-coil solenoid valve, but also only needs to consume a small energy to make the gas control valve in the gas supply state when the gas control valve is working normally. Once an abnormality is detected in the product, the gas supply from the gas control valve to the gas fireplace can be quickly cut off.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a gas control valve including a valve body and an electromagnetic valve. The valve body is provided with an air inlet and several air outlets, and the solenoid valve is an electromagnet structure with double coils, that is, it is composed of a solenoid valve static coil assembly and a solenoid valve moving coil assembly, and the electromagnetic valve The coil winding mode of the valve static coil assembly and the solenoid valve moving coil assembly is in the same direction according to the installation position in the double-coil solenoid valve, that is, the solenoid valve static coil assembly and the solenoid valve moving coil assembly are energized Afterwards, the magnetic forces generated by the static solenoid valve coil assembly and the solenoid valve moving coil assembly are superimposed. The electromagnetic valve moving coil assembly is connected with the gasket, and an electromagnetic valve spring is also arranged between the gasket and the valve body. The solenoid valve is arranged behind the air inlet on the valve body, and the valve body is provided with a valve sealing port corresponding to the position of the solenoid valve, and the valve sealing port cooperates with the sealing gasket, and the gas flows from the From the air inlet on the valve body to the several air outlets, all need to pass through the sealing port of the valve.

The several air outlets are one or more air outlets.

Initially, the solenoid valve is not energized, and the solenoid valve moving coil assembly is under the action of the solenoid valve spring, so that the solenoid valve moving coil assembly has a tendency to move away from the solenoid valve stationary coil assembly. The electromagnetic valve moving coil assembly is connected to the sealing gasket, and then the electromagnetic valve moving coil assembly pushes the sealing gasket to cooperate with the valve sealing port, and the sealing gasket seals the valve sealing port so that the gas cannot flow from the The air inlet on the valve body enters the air outlet.

When working, in order to make the electromagnetic valve moving coil assembly overcome the force of the electromagnetic valve spring, a relatively large pull-in current is first passed to the electromagnetic valve moving coil assembly and the electromagnetic valve static coil assembly at the same time, so that the solenoid valve moving coil assembly moves along the axis and engages with the solenoid valve static coil assembly, thereby driving the gasket to compress the solenoid valve spring, and urging the gasket to disengage from the valve sealing port . Once the solenoid valve moving coil assembly is attracted to the solenoid valve static coil assembly, the current passing through the solenoid valve moving coil and the solenoid valve static coil assembly can be reduced, only a small The maintenance current can maintain the pull-in state, that is, the gas control valve is always in the open state.

When the gas fireplace detects an abnormal situation and needs to close the gas control valve and stop the gas supply, the control program only needs to issue an instruction to stop the power supply to the static coil assembly of the solenoid valve and the moving coil assembly of the solenoid valve, thereby achieving safety. Protect.

When the gas fireplace needs to be closed normally, similarly, the control program only needs to issue an instruction to stop the power supply to the static coil assembly of the electromagnetic valve and the moving coil assembly of the electromagnetic valve.

Further, there is one solenoid valve, or there may be two or more solenoid valves.

Further, there are two electromagnetic valves, one air inlet and one or more air outlets are arranged on the valve body, and the corresponding valve sealing ports are also divided into two. For the convenience of description, the electromagnetic valves are respectively They are called the main solenoid valve and the main solenoid valve, and the corresponding valve sealing ports are respectively called the main valve sealing port and the main valve sealing port. Then through the sealing port of the main valve, and finally enter the interior of the gas fireplace from the gas outlets to work. between the sealing ports of the main valve.

Further, there are three or more solenoid valves, one air inlet and two or more air outlets are arranged on the valve body, and the corresponding valve sealing ports are also divided into three or more , for the convenience of description, the solenoid valves are respectively referred to as a main solenoid valve, a main solenoid valve and one or more auxiliary solenoid valves, and the corresponding valve sealing ports are respectively called the main valve sealing port and the main valve sealing port. The gas enters from the air inlet, first passes through the main valve sealing port, and then passes through the main valve sealing port, and then divides into two or more gas paths. In one air path, the auxiliary valve sealing port is set. For the convenience of description, the air path in which the auxiliary valve sealing port is arranged after the main sealing port is called the auxiliary air path. After the main valve sealing port The air path not provided with the auxiliary valve sealing port is called the main air path, the air outlet connected with the main air path is called the main air outlet, and the air outlet connected with the auxiliary air path is called the auxiliary air outlet, Finally, the gas enters the interior of the gas fireplace from the main gas outlet and/or the auxiliary gas outlet to work. The valve body is also provided with a main fire gas outlet, and the main fire gas outlet is arranged between the sealing port of the main valve and the between the main valve seals.

Further, there are three or more solenoid valves, one air inlet and two or more air outlets are arranged on the valve body, and the corresponding valve sealing ports are also divided into three or more , for the convenience of description, the solenoid valves are respectively a main solenoid valve and two or more main solenoid valves, and the corresponding valve sealing ports are respectively called the main valve sealing port and the main valve sealing port, and the two Two or more main valve sealing ports are arranged side by side, the gas enters from the air inlet, first passes through the main valve sealing port, and then is divided into two or more parallel gas paths, and the main valve sealing port Set up each gas path separately, the gas passes through the sealing port of the main valve, and finally enters the corresponding burner inside the gas fireplace from the gas outlet to work, and the valve body is also provided with a main fire gas outlet, And the main fire gas outlet is arranged behind the main valve sealing port and before all the main valve sealing ports.

Compared with the prior art, the utility model has the advantages of providing a gas control valve, which simultaneously supplies power through two coils, increases the magnetic force in the magnetic core, and maintains a comparative Large suction force, so that the solenoid valve has low power consumption, small size and simple structure, and is suitable for use on most gas control valves.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the utility model embodiment 1;

Fig. 2 is a schematic cross-sectional view of Embodiment 1 of the present invention in an initial position;

Fig. 3 is a schematic cross-sectional view of Embodiment 1 of the present invention in a working position;

Fig. 4 is an enlarged cross-sectional schematic view of the solenoid valve of Embodiment 1 of the present utility model;

Fig. 5 is an enlarged cross-sectional schematic view of the solenoid valve rotated by 90° in Embodiment 1 of the present utility model;

Fig. 6 is a schematic diagram of the winding directions of the static coil assembly and the moving coil assembly in Embodiment 1 of the present invention;

Fig. 7 is a schematic diagram of the control working principle installed in the gas fireplace product according to Embodiment 1 of the present utility model;

Fig. 8 is a schematic diagram of the three-dimensional structure of Embodiment 2 of the utility model;

Fig. 9 is a schematic cross-sectional view of Embodiment 2 of the utility model in an initial position;

Fig. 10 is a schematic cross-sectional view of Embodiment 2 of the utility model in a working position;

Fig. 11 is a cross-sectional schematic diagram of the position of the air inlet of Embodiment 2 of the present invention;

Fig. 12 is a cross-sectional schematic diagram of the position of the air outlet in Embodiment 2 of the present invention;

Fig. 13 is a schematic diagram of the control working principle installed in the gas fireplace product of Embodiment 2 of the present utility model;

Fig. 14 is a three-dimensional structural schematic diagram of Embodiment 3 of the present utility model;

Fig. 15 is a schematic cross-sectional view of Embodiment 3 of the present invention in its initial position;

Fig. 16 is a schematic cross-sectional view of Embodiment 3 of the utility model in a working position;

Fig. 17 is a cross-sectional schematic diagram of the position of the air inlet of Embodiment 3 of the present invention;

Fig. 18 is a cross-sectional schematic diagram of the position of the air outlet in Embodiment 3 of the present invention;

Fig. 19 is a schematic diagram of the control working principle installed in gas fireplace products according to Embodiment 3 of the present utility model.

The corresponding names of the components in the figure are: 1-valve body; 2-main solenoid valve; 3-main solenoid valve (3′-first main solenoid valve; 3″-second main solenoid valve); 4-secondary solenoid valve ;5-flame detection device; 6-controller; 7-intake pipe; 11-air inlet; ;14-main valve sealing port; 15-main valve sealing port (15' first main valve sealing port; 15″-second main valve sealing port); 16-auxiliary air outlet; 17-auxiliary valve sealing port; 21- Solenoid valve static coil assembly; 22-Solenoid valve moving coil assembly; 23-Sealing gasket; 24-Solenoid valve spring; 51 Main fire burner; 52-Flame detection probe; Secondary burner.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Example 1

As shown in Figures 1 to 7, a gas control valve includes a valve body 1, a main solenoid valve 2 and a main solenoid valve 3, the main solenoid valve 2 and the main solenoid valve 3 are solenoid valve structures with double coils, That is, the total solenoid valve 2 is composed of a solenoid valve static coil assembly 21 and a solenoid valve moving coil assembly 22, and the coil winding methods of the solenoid valve static coil assembly 21 and the solenoid valve moving coil assembly 22 are in accordance with the installation position of the double-coil solenoid valve In the same direction, that is, after the solenoid valve static coil assembly 21 and the solenoid valve moving coil assembly 22 are energized, the magnetic forces generated by the solenoid valve static coil assembly 21 and the solenoid valve moving coil assembly 22 are superimposed, and the solenoid valve moving coil assembly 21 and the gasket 23 Connected to each other, a solenoid valve spring 24 is also arranged between the gasket 23 and the valve body 1, and the main solenoid valve 3 has the same structure, which will not be repeated here. An air inlet 11, a main fire air outlet 12 and an air outlet 13 are arranged on the valve body 1, and two valve sealing ports are also arranged on the valve body 1, namely the main valve sealing port 14 and the main valve sealing port 15. The valve sealing port 14 cooperates with the main solenoid valve 2, and the main valve sealing port 15 cooperates with the main solenoid valve 3. The gas enters from the air inlet 11, first passes through the main valve sealing port 14, then passes through the main valve sealing port 15, and finally passes through the outlet The gas port 13 enters the inside of the gas fireplace to work, and the main fire gas outlet 12 is arranged between the main valve sealing port 14 and the main valve sealing port 15 .

As shown in Figure 7, in gas fireplace products, the main fire outlet 12 on the valve body 1 is connected to the main fire burner 51 on the flame detection device 5, and the flame detection device 5 is also provided with a flame detection probe 52 and an ignition Needle 53, valve body 1 is also connected with controller 6 by wire, air inlet 11 is connected with the gas pipeline of installation site by air inlet pipe 7, and gas outlet 13 is connected with burner 8 on the gas fireplace.

Initially, the main solenoid valve 2 is not energized, and the solenoid valve moving coil assembly 22 is under the action of the solenoid valve spring 24, so that the solenoid valve moving coil assembly 22 has a tendency to move away from the solenoid valve static coil assembly 21. 22 is connected to the gasket 23, and then the electromagnetic valve moving coil assembly 22 pushes the gasket 23 to cooperate with the sealing port 14 of the main valve, and the gasket 23 seals the sealing port 14 of the main valve. Similarly, the main solenoid valve 3 seals the sealing port 15 of the main valve , so that gas cannot enter the gas outlet 13 and the main fire gas outlet 12 from the air inlet 11.

During work, in order to make the electromagnetic valve moving coil assembly 22 overcome the active force of the electromagnetic valve spring 24, the controller 6 sends a signal to simultaneously pass a Large pull-in current, so that the solenoid valve moving coil assembly 22 moves along the axis and engages with the solenoid valve static coil assembly 21, and the gasket 23 compresses the solenoid valve spring 24, prompting the gasket 23 to disengage from the sealing port 14 of the main valve . Once the solenoid valve moving coil assembly 22 is attracted to the solenoid valve static coil assembly 21, the current passing through the solenoid valve moving coil 22 and the solenoid valve static coil assembly 21 can be reduced, and only a small maintenance current is required. That is, the main solenoid valve 2 can be maintained in the suction state, that is, the sealing port 14 of the main valve is always in an open state. After the main valve sealing port 14 is opened, the gas can enter the main fire outlet 12 from the air inlet 11, and then reach the main fire burner 51, the controller 6 issues an instruction, the ignition needle 53 ignites, and the flame detection probe 52 detects the main fire. After the flame of the fire burner 51, the controller 6 then passes a larger pull-in current to the main electromagnetic valve 3 to open the main valve sealing port 15. After opening the main valve sealing port 15, the controller 6 only needs to control the main electromagnetic valve The valve 3 is connected with a small maintenance current, so that the main solenoid valve 3 maintains the pull-in state, so that the gas can enter the gas outlet 13 from the air inlet 11, and then reach the burner 8, and the flame of the main fire burner 51 ignites the burner 8, so as to realize the work of the gas fireplace.

When the flame detection probe 52 detects the flame abnormality of the main fire burner 51, the gas control valve needs to be closed, and when the gas supply is stopped, only the controller 6 is required to issue an instruction to stop the power supply to the main solenoid valve 2 and the main solenoid valve 3, Solenoid valve spring 24 drives gasket 23 to reset, seals main valve sealing port 14 and main valve sealing port 15, prevents gas from reaching main fire gas outlet 12 and gas outlet 13 from air inlet 11, extinguishes flame, thereby realizes safety protection.

When the gas fireplace needs to be closed normally, similarly, the controller 6 only needs to issue an instruction to stop the power supply to the main solenoid valve 2 and the main solenoid valve 3 .

Example 2

As shown in Figures 8 to 13, a gas control valve includes a valve body 1, a main solenoid valve 2, a main solenoid valve 3 and a secondary solenoid valve 4, and the main solenoid valve 2, the main solenoid valve 3 and the secondary solenoid valve 4 are all It is a solenoid valve structure with double coils, that is, the main solenoid valve 2 is composed of a solenoid valve static coil assembly 21 and a solenoid valve moving coil assembly 22, and the coil winding methods of the solenoid valve static coil assembly 21 and the solenoid valve moving coil assembly 22 are in accordance with The installation position in the double-coil solenoid valve is the same direction, that is, after the solenoid valve static coil assembly 21 and the solenoid valve moving coil assembly 22 are energized, the magnetic forces generated by the solenoid valve static coil assembly 21 and the solenoid valve moving coil assembly 22 are superimposed, The electromagnetic valve moving coil assembly 21 is connected to the sealing gasket 23, and an electromagnetic valve spring 24 is also arranged between the sealing gasket 23 and the valve body 1. The main electromagnetic valve 3 and the auxiliary electromagnetic valve 4 have the same structure and will not be repeated. The valve body 1 is provided with an air inlet 11, a main fire outlet 12, two air outlets 13 and a secondary air outlet 16, and the valve body 1 is also provided with three valve sealing ports, i.e. the main valve sealing port 14, The sealing port 15 of the main valve and the sealing port 17 of the auxiliary valve, the sealing port 14 of the main valve cooperates with the main solenoid valve 2, the sealing port 15 of the main valve cooperates with the main solenoid valve 3, the sealing port 17 of the auxiliary valve cooperates with the auxiliary solenoid valve 4, and the gas from The air inlet 11 enters, first passes through the sealing port 14 of the main valve, and then passes through the sealing port 15 of the main valve, and is divided into three air paths, two of which directly enter the two air outlets 13 respectively, and the other one is connected with the auxiliary air outlet. 16 connection, in the air path connected with the auxiliary air outlet 16, the auxiliary valve sealing port 17 is set, for the convenience of description, the air path that is provided with the auxiliary valve sealing port 17 after the main sealing port 15 is called auxiliary air The gas path without the auxiliary valve sealing port 17 after the main valve sealing port 15 is called the main gas path, and finally the gas enters the gas fireplace from the gas outlet 13 and/or the auxiliary gas outlet 16 to work, while the main fire The air outlet 12 is arranged between the main valve sealing port 14 and the main valve sealing port 15 .

As shown in Figure 13, a burner 8 is arranged in a gas fireplace product, and the burner 8 is divided into a main burner 81 and an auxiliary burner 81, the main fire outlet 12 on the valve body 1 and the main burner on the flame detection device The flame detection device 5 is also equipped with a flame detection probe 52 and an ignition needle 53. The valve body 1 is also connected to the controller 6 through wires, and the air inlet 11 is connected to the gas pipeline at the installation site through the air intake pipe 7. , the two air outlets 13 are connected with the main burner 81 on the gas fireplace, and the auxiliary air outlet 16 is connected with the auxiliary burner 82 .

Initially, the main solenoid valve 2 is not energized, and the solenoid valve moving coil assembly 22 is under the action of the solenoid valve spring 24, so that the solenoid valve moving coil assembly 22 has a tendency to move away from the solenoid valve static coil assembly 21. 22 is connected to the gasket 23, and then the electromagnetic valve moving coil assembly 22 pushes the gasket 23 to cooperate with the sealing port 14 of the main valve, and the gasket 23 seals the sealing port 14 of the main valve. Similarly, the main solenoid valve 3 seals the sealing port 15 of the main valve , the secondary solenoid valve 4 seals the secondary valve sealing port 17, so that gas cannot enter the gas outlet 13, the secondary gas outlet 17 and the main fire gas outlet 12 from the air inlet 11.

During work, in order to make the electromagnetic valve moving coil assembly 22 overcome the active force of the electromagnetic valve spring 24, the controller 6 sends a signal to simultaneously pass a Large pull-in current, so that the solenoid valve moving coil assembly 22 moves along the axis and engages with the solenoid valve static coil assembly 21, drives the gasket 23 to compress the solenoid valve spring 24, and urges the gasket 23 to disengage from the sealing port of the main valve 14. Once the solenoid valve moving coil assembly 22 is attracted to the solenoid valve static coil assembly 21, the current passing through the solenoid valve moving coil 22 and the solenoid valve static coil assembly 21 can be reduced, and only a small maintenance current is required. That is, the main solenoid valve 2 can be maintained in the suction state, that is, the sealing port 14 of the main valve is always in an open state. After the main valve sealing port 14 is opened, the gas can enter the main fire outlet 12 from the air inlet 11, and then reach the main fire burner 51, the controller 6 issues an instruction, the ignition needle 53 ignites, and the flame detection probe 52 detects the main fire. After the flame of the fire burner 51, the controller 6 then passes a larger pull-in current to the main solenoid valve 3 to open the main valve sealing port 15. After opening the main valve sealing port 15, the controller 6 only needs to activate the main solenoid valve The valve 3 is connected with a small maintenance current, so that the main solenoid valve 3 maintains the pull-in state, so that the gas can enter the gas outlet 13 from the air inlet 11, and then reach the main burner 81, and the flame of the main fire burner 51 is ignited and burned 81, if the auxiliary burner 82 needs to be ignited, a larger pull-in current is also passed to the auxiliary solenoid valve 4 to trigger the pull-in, and then it is converted to a smaller maintenance current to maintain the pull-in of the solenoid valve 4 to open the auxiliary valve The port 17 is sealed so that gas enters the auxiliary gas outlet 16 and reaches the auxiliary burner 82, that is, the auxiliary burner 82 can be ignited, thereby realizing the operation of the gas fireplace.

When the flame detection probe 52 detects the flame abnormality of the main fire burner 51, the gas control valve needs to be closed, and when the gas supply is stopped, only the controller 6 is required to issue an instruction to stop the operation of the main solenoid valve 2, the main solenoid valve 3 and the auxiliary solenoid valve 2. The solenoid valve 4 supplies power, and the solenoid valve spring 24 drives the sealing gasket 23 to reset, sealing the main valve sealing port 14, the main valve sealing port 15 and the auxiliary valve sealing port 17, preventing the gas from reaching the main fire gas outlet 12, the outlet port 11 from the air inlet 11. The air port 13 and the auxiliary air outlet 16 extinguish the flame, thereby realizing safety protection.

When the gas fireplace needs to be closed normally, similarly, the controller 6 only needs to issue an instruction to stop the power supply to the main solenoid valve 2, the main solenoid valve 3 and the auxiliary solenoid valve 4.

Example 3

As shown in Figures 14 to 19, a gas control valve includes a valve body 1, a main solenoid valve 2 and a main solenoid valve 3. There are two main solenoid valves, namely the first main solenoid valve 3' and the second solenoid valve 3'. The main solenoid valve 3 ", the total solenoid valve 2, the first main solenoid valve 3 ' and the second main solenoid valve 3 " are all electromagnetic valve structures with double coils, that is, the total solenoid valve 2 is composed of a solenoid valve static coil assembly 21 and The solenoid valve moving coil assembly 22 is composed of the solenoid valve static coil assembly 21 and the solenoid valve moving coil assembly 22. After the valve moving coil assembly 22 is energized, the magnetic force generated by the solenoid valve static coil assembly 21 and the electromagnetic valve moving coil assembly 22 is superimposed, and the electromagnetic valve moving coil assembly 21 is connected with the gasket 23, and there is a gap between the gasket 23 and the valve body 1. Electromagnetic valve spring 24 is provided, and the first main electromagnetic valve 3 ' and the second main electromagnetic valve 3 " are the same structure, no longer repeat them. An air inlet 11 and a main fire air outlet 12 and two Two gas outlets, respectively the first gas outlet 13' and the second gas outlet 13", the valve body 1 is also provided with three valve sealing ports, namely the main valve sealing port 14 and the first main valve sealing port 15', the second The main valve sealing port 15", the first main valve sealing port 15' and the second main valve sealing port 15" are arranged side by side, the first main valve sealing port 15' communicates with the first air outlet 13', and the second main valve sealing port 15" communicates with the second air outlet 13", the main valve sealing port 14 cooperates with the main solenoid valve 2, the first main valve sealing port 15' cooperates with the first main solenoid valve 3', the second main valve sealing port 15" and The second main solenoid valve 3″ cooperates, and the gas enters from the air inlet 11, first passes through the main valve sealing port 14, and then divides into two parallel gas paths, and then passes through the first main valve sealing port 15′ and the second main valve sealing port 15′ respectively. The valve sealing port 15 ", and finally enter the corresponding burner inside the gas fireplace from the first gas outlet 13' and the second gas outlet 13 " to work, and the main fire gas outlet 12 is arranged behind the main valve sealing port 14, the first Before the main valve sealing port 13' and the second main valve sealing port 13".

As shown in Figure 19, in gas fireplace products, the main fire outlet 12 on the valve body 1 is connected to the main fire burner 51 on the flame detection device 5, and the flame detection device 5 is also provided with a flame detection probe 52 and an ignition Needle 53, the valve body 1 is also connected with the controller 6 through wires, the air inlet 11 is connected with the gas pipeline of the installation site through the air inlet pipe 7, the first gas outlet 13' is connected with the first burner 8' on the gas fireplace, The second gas outlet 13" is connected with the second burner 8".

Initially, the main solenoid valve 2 is not energized, and the solenoid valve moving coil assembly 22 is under the action of the solenoid valve spring 24, so that the solenoid valve moving coil assembly 22 has a tendency to move away from the solenoid valve static coil assembly 21. 22 is connected to the gasket 23, and then the electromagnetic valve moving coil assembly 22 pushes the gasket 23 to cooperate with the sealing port 14 of the main valve, and the gasket 23 seals the sealing port 14 of the main valve. Similarly, the main solenoid valve 3 seals the sealing port 15 of the main valve , so that gas cannot enter the first gas outlet 13 ′, the second gas outlet 13 ″ and the main fire gas outlet 12 from the air inlet 11 .

During work, in order to make the electromagnetic valve moving coil assembly 22 overcome the active force of the electromagnetic valve spring 24, the controller 6 sends a signal to simultaneously pass a Large pull-in current, so that the solenoid valve moving coil assembly 22 moves along the axis and engages with the solenoid valve static coil assembly 21, drives the gasket 23 to compress the solenoid valve spring 24, and urges the gasket 23 to disengage from the sealing port of the main valve 14. Once the solenoid valve moving coil assembly 22 is attracted to the solenoid valve static coil assembly 21, the current passing through the solenoid valve moving coil 22 and the solenoid valve static coil assembly 21 can be reduced, and only a small maintenance current is required. That is, the main solenoid valve 2 can be maintained in the suction state, that is, the sealing port 14 of the main valve is always in an open state. After the main valve sealing port 14 is opened, the gas can enter the main fire outlet 12 from the air inlet 11, and then reach the main fire burner 51, the controller 6 issues an instruction, the ignition needle 53 ignites, and the flame detection probe 52 detects the main fire. After the flame of the fire burner 51, the controller 6 then passes a larger pull-in current to the first main solenoid valve 3' and/or the second main solenoid valve 3", so as to open the first main valve sealing port 15' and / or the second main valve sealing port 15 ", after opening the first main valve sealing port 15 ' and/or the second main valve sealing port 15 ", the controller 6 only needs to control the first main solenoid valve 3 ' and/or the second main valve sealing port 15 ". The two main solenoid valves 3" are connected with a small maintenance current, so that the first main solenoid valve 3' and/or the second main solenoid valve 3" maintain the pull-in state, so that the gas can enter the first outlet from the air inlet 11. Gas port 13' and/or second gas outlet 13 ", and then reach first burner 8 ' and/or second burner 8 ", the flame of mother fire burner 51 ignites burner first burner 8 ' and/or The second burner is 8", thus realizing the work of the gas fireplace.

When the flame detection probe 52 detects the flame abnormality of the main fire burner 51, the gas control valve needs to be closed, and when the gas supply is stopped, only the controller 6 is required to issue an instruction to stop the main solenoid valve 2, the first main solenoid valve 3 ' and the second main solenoid valve 3 "power supply, the solenoid valve spring 24 drives the gasket 23 to reset, seals the main valve sealing port 14 and the main valve sealing port 15, and prevents the gas from reaching the main fire outlet 12 from the air inlet 11. A gas outlet 13' and a second gas outlet 13'' are used to extinguish the flame, thereby realizing safety protection.

When the gas fireplace needs to be closed normally, similarly, the controller 6 only needs to issue an instruction to stop the power supply to the main solenoid valve 2, the first main solenoid valve 3' and the second main solenoid valve 3".

To sum up, the above-mentioned embodiment is not a limiting embodiment of the present utility model, and all modifications or equivalent deformations made by those skilled in the art on the basis of the essential content of the present utility model are included in the scope of the present utility model. within the technical category.

Claims (4)

1. A gas control valve characterized in that: comprises a valve body (1) and an electromagnetic valve (2); the electromagnetic valve is characterized in that the valve body (1) is provided with an air inlet (11) and a plurality of air outlets (13), and the electromagnetic valve (2) is of an electromagnet structure with double coils, namely comprises an electromagnetic valve static coil component (21) and an electromagnetic valve moving coil component (22); be provided with the valve seal mouth on valve body (1), solenoid valve moving coil subassembly (22) links to each other with sealed pad (23), sealed pad (23) with the sealed cooperation of valve seal mouth sealed pad (23) with be provided with between valve body (1) and be used for sealed solenoid valve spring (24) that fill up (23) and reset, solenoid valve quiet coil subassembly (21) and solenoid valve moving coil subassembly (22) produce the magnetism response after the circular telegram, wherein solenoid valve moving coil subassembly (22) through with solenoid valve quiet coil subassembly (21) between magnetism attract the principle mutually and drive sealed pad (23) and remove and make the mediation of valve seal mouth.

2. A gas control valve according to claim 1, characterized in that: the solenoid valve is two, divide into main solenoid valve (2) and main solenoid valve (3), and is corresponding also be provided with two valve seal mouths on valve body (1), be main valve seal mouth (14) and main valve seal mouth (15) respectively, still be provided with mother's fire gas outlet (12) on valve body (1), mother's fire gas outlet (12) set up main valve seal mouth (14) with between the main valve seal mouth (15).

3. A gas control valve according to claim 1, characterized in that: the electromagnetic valves are three or more, and are divided into a main electromagnetic valve (2), a main electromagnetic valve (3) and an auxiliary electromagnetic valve (4), the valve sealing ports are correspondingly divided into three or more, namely a main valve sealing port (14), a main valve sealing port (15) and an auxiliary valve sealing port (17), the number of the air outlets on the valve body (1) is two or more, at least one air outlet is directly communicated with the main valve sealing port (15), and is called as an air outlet (13), at least one air outlet can be communicated with the main valve sealing port (15) only through the auxiliary valve sealing port (17), and is called as an auxiliary air outlet (16), a main fire air outlet (12) is further arranged on the valve body, and the main fire air outlet (12) is arranged between the main valve sealing port (14) and the main valve sealing port (15).

4. A gas control valve according to claim 1, characterized in that: the electromagnetic valve is three or more, is a total electromagnetic valve (2) and two or more main electromagnetic valves (3) respectively, and is corresponding the valve sealing mouth also divide into three or more, is a total valve sealing mouth (14) and two or more main valve sealing mouths (15) respectively, gas outlet (13) on the valve body are two or more, and all gas outlets (13) all need to communicate with total valve sealing mouth (14) through main valve sealing mouth (15), and has at least two gas outlets (13) and total valve sealing mouth (14) intercommunication through different main valve sealing mouths (15), still be provided with mother fire gas outlet (12) on valve body (1), mother fire gas outlet (12) set up after total valve sealing mouth (14), all before main valve sealing mouth (15).