Gas leakage detection device for gas transmission station

Abstract

The utility model discloses a gas transmission station gas leakage detection device comprising an alarm housing, the front surface of the alarm housing is provided with an indicating lamp, the edge of the lower end of the alarm housing is provided with a horn mouth, the edge of the upper end of the alarm housing is provided with a gas inlet, and the gas inlet in the alarm housing is provided with a gas inlet assembly. The air inlet assembly comprises an assembly shell fixed in the alarm shell, and a dustproof mechanism is installed on the assembly shell. According to the gas transmission station gas leakage detection device, after the electromagnet is started, the armature is attracted, the sealing block leaves the gas inlet, the gas inlet is opened for gas suction detection, then the electromagnet can be closed regularly, after the electromagnet is closed, the spring pushes the sealing plate block to move forwards, and the gas leakage is detected. Therefore, the sealing block is pushed to enter the air inlet, foreign matters in the air inlet are squeezed out, the purpose of regularly cleaning the air inlet is achieved, and the foreign matters are prevented from blocking the air inlet.

Description

Technical Field

[0001] The utility model relates to the field of leakage detection devices, in particular to a gas leakage detection device for a gas transmission station. Background Art

[0002] A gas alarm is an instrument for detecting and alarming gas leaks. When gas leaks in an industrial environment, the gas alarm detects that the gas concentration reaches the critical point set by the explosion or poisoning alarm, and the gas alarm will send out an alarm signal. During use, the gas alarm absorbs external gas through the air inlet on the surface of the shell for detection. After long-term use, there is a risk that the air inlet on the alarm shell will be blocked by foreign matter. After the air inlet is blocked, detection cannot be performed. Therefore, a gas transmission station gas leak detection device is proposed. Utility Model Content

[0003] The main purpose of the utility model is to provide a gas leakage detection device for a gas transmission station, which can effectively solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A gas leakage detection device for a gas transmission station comprises an alarm housing, an indicator light is provided on the front surface of the alarm housing, a bell mouth is provided at the lower edge of the alarm housing, an air inlet is provided at the upper edge of the alarm housing, an air inlet is provided at the air inlet in the alarm housing, an air inlet assembly is provided at the air inlet, the air inlet assembly comprises a component shell fixed in the alarm housing, a pipe interface is provided at the lower edge of the component shell, a mounting groove is provided at the middle position of the component shell, a dustproof mechanism is installed on the component shell, the dustproof mechanism comprises a sealing plate movably installed in the component shell and an electromagnet fixed in the mounting groove, a sealing block is fixedly installed on the surface of one side of the sealing plate, an armature is fixedly installed at the middle position of the other side of the sealing plate, electromagnets are fixedly installed at the four corners of the sealing plate, and through holes are provided on the sealing plate.

[0006] Furthermore, a positioning foot is fixedly installed at the edge of the component shell, positioning through holes are opened at the four corners of the positioning foot, and a sealing ring is provided between the positioning foot and the alarm housing.

[0007] Furthermore, a screw is provided in the positioning through hole, the positioning foot is fixed to the inner wall of the alarm housing by the screw, and the component housing is installed at the air inlet in the alarm housing by the positioning foot.

[0008] Furthermore, the electromagnet is installed on the component housing through a mounting groove, a slot is provided on the sealing plate, the armature is installed on the sealing plate through the slot, and the electromagnet and the armature are aligned in the horizontal direction.

[0009] Furthermore, one end of the spring is connected to the inner wall of the component housing, and the other end of the spring is connected to the sealing plate.

[0010] Furthermore, the dustproof mechanism is installed at the air inlet on the alarm housing through the component housing.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] During use, the detection tube inside the alarm is connected to the pipe interface. The electromagnet can be started during detection. After the electromagnet is started, it will absorb the armature to make the sealing block leave the air inlet, thereby opening the air inlet for air intake detection. When not detecting, the electromagnet can be turned off. After the electromagnet is turned off, the spring will push the sealing plate forward, thereby pushing the sealing block into the air inlet, and then squeezing out foreign matter in the air inlet to prevent foreign matter from blocking the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the air intake assembly of the utility model;

[0016] Figure 4 It is a schematic diagram of the dustproof mechanism of the utility model.

[0017] In the figure: 1. alarm housing; 2. indicator light; 3. bell mouth; 4. air inlet; 5. air inlet assembly; 501. sealing ring; 502. positioning through hole; 503. positioning support foot; 504. mounting groove; 505. pipe interface; 506. assembly housing; 6. dustproof mechanism; 601. through hole; 602. sealing plate; 603. sealing block; 604. electromagnet; 605. armature; 606. spring. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 Figure 2As shown, a gas leakage detection device for a gas transmission station includes an alarm housing 1, an indicator light 2 is provided on the front surface of the alarm housing 1, a bell mouth 3 is provided at the lower edge of the alarm housing 1, an air inlet 4 is provided at the upper edge of the alarm housing 1, an air inlet component 5 is provided at the air inlet 4 in the alarm housing 1, and a dustproof mechanism 6 is installed on the component shell 506. The detection pipeline in the alarm housing 1 can be connected to the air inlet 4 through the air inlet component 5, and the dustproof mechanism 6 can play a role of cleaning and sealing, thereby preventing foreign matter from blocking the air inlet 4.

[0020] like Figure 3 As shown, the air intake component 5 includes a component shell 506 fixed in the alarm housing 1, a pipe interface 505 is provided at the lower edge of the component shell 506, a mounting groove 504 is opened in the middle position of the component shell 506, and a positioning foot 503 is fixedly installed at the edge of the component shell 506, and positioning through holes 502 are opened at the four corners of the positioning foot 503. A sealing ring 501 is provided between the positioning foot 503 and the alarm housing 1, and a screw is provided in the positioning through hole 502. The positioning foot 503 is fixed to the inner wall of the alarm housing 1 by screws, and the component shell 506 is installed at the air inlet 4 in the alarm housing 1 through the positioning foot 503.

[0021] Specifically, the detection pipe in the alarm housing 1 is connected to the pipe interface 505, so that the detection pipe is connected to the air inlet 4. The electromagnet 604 can be installed on the component housing 506 through the installation groove 504, so that the electromagnet 604 on the component housing 506 is aligned with the armature 605 on the sealing plate 602, so that the electromagnet 604 is used to attract the armature 605.

[0022] like Figure 4 As shown, the dustproof mechanism 6 includes a sealing plate 602 movably installed in the component housing 506 and an electromagnet 604 fixed in the mounting groove 504, a sealing block 603 is fixedly installed on the surface of one side of the sealing plate 602, an armature 605 is fixedly installed at the middle position of the other side of the sealing plate 602, and electromagnets 604 are fixedly installed at the four corners of the sealing plate 602, a through hole 601 is opened on the sealing plate 602, the electromagnet 604 is installed on the component housing 506 through the mounting groove 504, a card slot is opened on the sealing plate 602, the armature 605 is installed on the sealing plate 602 through the card slot, and the electromagnet 604 is aligned with the armature 605 in the horizontal direction, one end of the spring 606 is connected to the inner wall of the component housing 506, and the other end of the spring 606 is connected to the sealing plate 602.

[0023] Specifically, after the electromagnet 604 is started, it will absorb the armature 605, so that the sealing plate 602 moves into the component shell 506. After the sealing plate 602 moves into the component shell 506, the sealing block 603 will be separated from the air inlet 4, thereby opening the air inlet 4, so that the external gas can enter the detection pipeline through the air inlet 4 for detection. At the same time, after the electromagnet 604 is turned off, it will release the armature 605. After the armature 605 is released, the spring 606 will provide elastic force for the sealing plate 602, so that the sealing plate 602 moves forward, thereby pushing the sealing block 603 into the air inlet 4, and then squeezing out foreign matter in the air inlet 4. Regular cleaning can effectively prevent the air inlet 4 from being blocked.

[0024] It should be noted that the utility model is a gas leakage detection device for a gas transmission station. In actual use, the detection pipeline in the alarm housing 1 is first connected to the pipeline interface 505, and then the entire device is installed in the gas transmission station. After the device is installed in the gas transmission station, the power supply of the electromagnet 604 can be turned on. After the power supply of the electromagnet 604 is turned on, it will absorb the armature 605, so that the sealing plate 602 moves into the component housing 506. After the sealing plate 602 moves into the component housing 506, the sealing block 603 will be detached. Leave the air inlet 4, open the air inlet 4, so that the external gas can enter the detection pipeline through the air inlet 4 for detection, and the power supply of the electromagnet 604 can be disconnected regularly. After the power supply of the electromagnet 604 is disconnected, it will release the armature 605. After the armature 605 is released, the spring 606 will provide elastic force for the sealing plate 602, so that the sealing plate 602 moves forward, thereby pushing the sealing block 603 into the air inlet 4, and then squeezing out foreign matter in the air inlet 4, so as to achieve the purpose of regularly cleaning the air inlet 4 and prevent foreign matter from clogging the air inlet 4.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gas leakage detection device for a gas transmission station, comprising an alarm housing (1), characterized in that: The front surface of the alarm housing (1) is provided with an indicator light (2); the lower edge of the alarm housing (1) is provided with a bell mouth (3); the upper edge of the alarm housing (1) is provided with an air inlet (4); the air inlet (4) in the alarm housing (1) is provided with an air inlet assembly (5); the air inlet assembly (5) comprises a assembly housing (506) fixed in the alarm housing (1); the lower edge of the assembly housing (506) is provided with a pipe interface (505); the middle position of the assembly housing (506) is provided with a mounting groove (504); the assembly A dustproof mechanism (6) is installed on the housing (506), and the dustproof mechanism (6) includes a sealing plate (602) movably installed in the component housing (506) and an electromagnet (604) fixed in the installation groove (504); a sealing block (603) is fixedly installed on the surface of one side of the sealing plate (602); an armature (605) is fixedly installed in the middle position of the other side of the surface of the sealing plate (602); electromagnets (604) are fixedly installed at the four corners of the sealing plate (602); and a through hole (601) is opened on the sealing plate (602).

2. A gas leakage detection device for a gas transmission station according to claim 1, characterized in that: A positioning foot (503) is fixedly mounted on the edge of the component housing (506), positioning through holes (502) are provided at the four corners of the positioning foot (503), and a sealing ring (501) is provided between the positioning foot (503) and the alarm housing (1).

3. A gas leakage detection device for a gas transmission station according to claim 2, characterized in that: The positioning through hole (502) is provided with a screw, the positioning foot (503) is fixed to the inner wall of the alarm housing (1) by means of the screw, and the component housing (506) is installed at the air inlet (4) in the alarm housing (1) via the positioning foot (503).

4. A gas leakage detection device for a gas transmission station according to claim 3, characterized in that: The electromagnet (604) is installed on the component housing (506) through the installation groove (504), the sealing plate (602) is provided with a slot, the armature (605) is installed on the sealing plate (602) through the slot, and the electromagnet (604) and the armature (605) are aligned in the horizontal direction.

5. A gas leakage detection device for a gas transmission station according to claim 4, characterized in that: The component housing (506) and the sealing plate (602) are provided with a spring (606).

6. A gas leakage detection device for a gas transmission station according to claim 5, characterized in that: The dustproof mechanism (6) is installed at the air inlet (4) on the alarm housing (1) through a component housing (506).

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