Forced air supply device

Abstract

The utility model discloses a forced air supply device which is used for switching on and off when air is supplied to an air supply pipeline through an air storage tank, and comprises a plurality of groups of switching-on and switching-off components, the on-off assembly comprises a circuit board; a pressure regulating valve, a first electromagnetic valve, a second electromagnetic valve and a mechanical control valve; the input end of the pressure regulating valve is communicated with an external air pump, the other end of the pressure regulating valve is communicated with the first input end of the first electromagnetic valve through a pipeline, and the output end of the first electromagnetic valve is communicated with the input end of the pneumatic valve. The pneumatic valve has the beneficial effects that by arranging the second electromagnetic valve, gas passing through the motorized valve can be remotely closed, the second input end of the first electromagnetic valve is restored to the closed state of the initial state, and then opening and closing of the pneumatic valve can be continuously controlled through the first electromagnetic valve.

Description

Technical Field

[0001] This utility model relates to the field of chemical supply, and in particular to a forced gas supply device. Background Technology

[0002] Bottled chemicals need to be fed into external pipelines during use, which requires the control of high and low pressure pneumatic valves to control the flow of bottled chemicals.

[0003] Currently, to control the pneumatic valve, the gas generated by the air pump needs to be switched on and off via a solenoid valve. This allows for the control of the gas flow through the pneumatic valve and the discharge of bottled chemicals. In addition, to prevent the solenoid valve from failing to control the pneumatic valve due to power outages, a manual actuator valve is usually installed in parallel. This valve is manually opened by on-site personnel. The solenoid valve is a two-position, three-position normally open type. However, when power is restored, there is a special situation where the manual actuator valve may be forgotten to be closed, causing the pneumatic valve to fail to close properly. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to solve the problems in the prior art and provide a forced gas supply device.

[0005] Technical solution: A forced gas supply device is proposed, which is used to switch on and off when supplying gas to the gas supply pipeline through a gas storage tank, including multiple sets of switching components;

[0006] The on / off component includes:

[0007] Pressure regulating valve, first solenoid valve, second solenoid valve, and mechanical control valve;

[0008] The input end of the pressure regulating valve is connected to an external air pump, and the other end of the pressure regulating valve is connected to the first input end of the first solenoid valve through a pipe. The output end of the first solenoid valve is connected to the input end of the pneumatic valve, wherein the pneumatic valve opens when gas is input.

[0009] The output end of the pressure regulating valve is also connected to the input end of the mechanical control valve, the output end of the mechanical control valve is connected to the input end of the second solenoid valve, and the output end of the second solenoid valve is connected to the second input end of the first solenoid valve.

[0010] Preferably, the pneumatic valve includes a low-pressure pneumatic valve and a high-pressure pneumatic valve, wherein the low-pressure pneumatic valve and the high-pressure pneumatic valve are respectively connected to a second solenoid valve and a pressure regulating valve through a separate first solenoid valve.

[0011] Preferably, the first solenoid valve is a two-position three-way solenoid valve;

[0012] When the first solenoid valve is energized, the second input terminal of the first solenoid valve is disconnected from the output terminal of the second solenoid valve, and the first input terminal of the first solenoid valve is connected to the output terminal of the first solenoid valve.

[0013] When the first solenoid valve is de-energized, the second input terminal of the first solenoid valve is connected to the output terminal of the second solenoid valve, and the first input terminal of the first solenoid valve is disconnected from the output terminal of the first solenoid valve.

[0014] Preferably, the second solenoid valve is a normally open valve.

[0015] Preferably, the first solenoid valve is a normally closed valve.

[0016] Preferably, the machine-controlled valve is a manual valve.

[0017] Preferably, the mechanically controlled valve is a normally closed valve.

[0018] Beneficial effects: In order to address the issue of power system failure of the first solenoid valve in the prior art, the existing technology uses parallel mechanical control valves for manual opening, so that the gas generated by the air pump opens the pneumatic valve through the first solenoid valve. To avoid forgetting to manually close the relay valve when the power is restored, a second solenoid valve is set up to remotely close the gas passing through the mechanical valve, so that the second input terminal of the first solenoid valve returns to the initial closed state, and the opening and closing of the pneumatic valve can continue to be controlled by the first solenoid valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model in its initial state;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model in the power-on state;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model under power failure conditions;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model under power restoration conditions.

[0023] Figure label:

[0024] 1. Pressure regulating valve; 2. First solenoid valve; 3. Second solenoid valve; 4. Mechanical control valve; 5. Pneumatic valve. Detailed Implementation

[0025] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but does not exclude other elements or objects.

[0029] In response to the problems existing in the current technology, combined with Figure 1-4 A forced gas supply device for switching on and off when supplying gas to a gas supply pipeline via a gas storage tank, comprising multiple sets of switching components.

[0030] The on / off component includes:

[0031] Pressure regulating valve 1, first solenoid valve 2, second solenoid valve 3, and mechanical control valve 4;

[0032] The input end of the pressure regulating valve 1 is connected to an external air pump, and the other end of the pressure regulating valve 1 is connected to the first input end of the first solenoid valve 2 through a pipe. The output end of the first solenoid valve 2 is connected to the input end of the pneumatic valve 5, wherein the pneumatic valve 5 is opened when gas is input.

[0033] The output end of the pressure regulating valve 1 is also connected to the input end of the mechanical control valve 4, the output end of the mechanical control valve 4 is connected to the input end of the second solenoid valve 3, and the output end of the second solenoid valve 3 is connected to the second input end of the first solenoid valve 2.

[0034] As a further specific embodiment, the pneumatic valve 5 includes a low-pressure pneumatic valve (LPI(A) or LPI(B) in the figure) and a high-pressure pneumatic valve (HPI(A) or HPI(B) in the figure), wherein the low-pressure pneumatic valve 5 and the high-pressure pneumatic valve are respectively connected to the second solenoid valve 3 and the pressure regulating valve 1 through a separate first solenoid valve 2.

[0035] As a further specific embodiment, the first solenoid valve 2 is a two-position three-way solenoid valve;

[0036] When the first solenoid valve 2 is energized, the second input terminal of the first solenoid valve 2 is disconnected from the output terminal of the second solenoid valve 3, and the first input terminal of the first solenoid valve 2 is connected to the output terminal of the first solenoid valve 2.

[0037] When the first solenoid valve 2 is de-energized, the second input terminal of the first solenoid valve 2 is connected to the output terminal of the second solenoid valve 3, and the first input terminal of the first solenoid valve 2 is disconnected from the output terminal of the first solenoid valve 2.

[0038] As a further specific embodiment, the second solenoid valve 3 is a normally open valve.

[0039] As a further specific embodiment, the first solenoid valve 2 is a normally closed valve.

[0040] As a further specific embodiment, the machine-controlled valve 4 is a manual valve.

[0041] As a further specific embodiment, the machine control valve 4 is a normally closed valve.

[0042] Specifically, multiple on / off components can be used to control multiple pipelines during the gas tank's output. In the initial state, such as... Figure 1 This state is the initial unpowered state, such as... Figure 2 The diagram shows the energized state. The first solenoid valve 2 and the second solenoid valve 3 are configured to be closed via power control, while the mechanically controlled valve 4 is in a manually closed state. This state is the standby state. When the power supply is normal, the air output from the external air pump is input through the pressure regulating valve 1. When pipeline supply is required, the first solenoid valve 2 is opened electrically, so that the first input end of the first solenoid valve 2 is connected to the output end of the first solenoid valve 2. The gas generated by the air pump can enter the pneumatic valve 5 through the first solenoid valve 2 to open the pneumatic valve 5.

[0043] When the system loses power, such as Figure 3 As shown, at this time, both the first solenoid valve 2 and the second solenoid valve 3 are de-energized. The second solenoid valve 3 is normally open, and the first solenoid valve 2 is normally closed. (It is worth mentioning that in the normally closed state, when the first solenoid valve 2 is de-energized, the second input terminal of the first solenoid valve 2 is connected to the output terminal of the second solenoid valve 3, and the first input terminal of the first solenoid valve 2 is disconnected from the output terminal of the first solenoid valve 2.) At this time, by manually opening the mechanical control valve 4, the gas is forced to pass through the second solenoid valve 3 and the first solenoid valve 2 in sequence, thereby forcibly opening the pneumatic valve 5.

[0044] When the system regains power, such as Figure 4As shown, if the mechanical control valve 4 is forgotten to be turned off, the pneumatic valve 5 will open no matter how the first solenoid valve 2 is operated. In order to avoid the situation where the pneumatic valve 5 cannot be controlled if the mechanical control valve 4 is forgotten to be turned off, a second solenoid valve 3 is set. When the second solenoid valve 3 is turned off, the output end of the second solenoid valve 3 is disconnected, so that the first solenoid valve 2 can smoothly control the opening and closing of the pneumatic valve 5.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A forced air supply device for opening and closing a supply of air from an air reservoir to an air supply conduit, characterised in that, The on-off assembly includes a plurality of groups of on-off assemblies; The on-off assembly includes A pressure regulating valve (1), a first electromagnetic valve (2), a second electromagnetic valve (3) and a machine control valve (4); The input end of the pressure regulating valve (1) is connected with an external air pump, the other end of the pressure regulating valve (1) is connected with the first input end of the first electromagnetic valve (2) through a pipeline, the output end of the first electromagnetic valve (2) is connected with the input end of the pneumatic valve (5), wherein the pneumatic valve (5) is opened when the pneumatic valve (5) inputs gas. The output end of the pressure regulating valve (1) is also connected with the input end of the machine control valve (4), the output end of the machine control valve (4) is connected with the input end of the second electromagnetic valve (3), and the output end of the second electromagnetic valve (3) is connected with the second input end of the first electromagnetic valve (2).

2. The air supply device according to claim 1, wherein the pneumatic valve (5) includes a low-pressure pneumatic valve and a high-pressure pneumatic valve, and the low-pressure pneumatic valve and the high-pressure pneumatic valve are respectively connected with the second electromagnetic valve (3) and the pressure regulating valve (1) through separate first electromagnetic valves (2).

3. The air supply device according to claim 1, wherein the first electromagnetic valve (2) is a two-position three-way electromagnetic valve. wherein When the first electromagnetic valve (2) is powered on, the second input end of the first electromagnetic valve (2) is disconnected with the output end of the second electromagnetic valve (3), and the first input end of the first electromagnetic valve (2) is connected with the output end of the first electromagnetic valve (2). When the first electromagnetic valve (2) is powered off, the second input end of the first electromagnetic valve (2) is connected with the output end of the second electromagnetic valve (3), and the first input end of the first electromagnetic valve (2) is disconnected with the output end of the first electromagnetic valve (2).

4. The air supply device according to claim 1, wherein the second electromagnetic valve (3) is a normally open valve.

5. The air supply device according to claim 1, wherein the first electromagnetic valve (2) is a normally closed valve.

6. The air supply device according to claim 1, wherein the machine control valve (4) is a manual valve.

7. The air supply device according to claim 1, wherein the machine control valve (4) is a normally closed valve.

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