Automatic ignition control device for reducing gas dissipation

Abstract

The utility model belongs to the field of fuel gas conveying, particularly relates to an automatic ignition control device capable of reducing gas dissipation, and aims to solve the problems that when the concentration of combustible gas is high and the gas is ignited, the gas is easy to return, gas sources are simultaneously ignited and potential safety hazards exist, the following scheme is provided: the automatic ignition control device comprises a connecting pipe fitting, a gas sensor is fixedly mounted at the top of the connecting pipe fitting, an ignition mechanism is arranged at the top of the connecting pipe fitting, a closed shell is fixedly mounted on one side of the connecting pipe fitting, and a closing mechanism is arranged in the closed shell. According to the utility model, when the gas sensor detects that the concentration of combustible gas is relatively high, the buzzer alarm is started and the sealing mechanism is started to seal the gas transmission port at the same time, and then the main controller starts the ignition mechanism, so that the gas in the gas outlet pipeline burns and is prevented from escaping into the air, and the safety of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas delivery technical field especially relates to a kind of automatic ignition control device for reducing gas dissipation. BACKGROUND

[0002] Automatic ignition control device for reducing gas dissipation is a kind of equipment for automatically detecting and igniting gas in the occasion where combustible gas may be dissipated, to prevent gas from being dissipated in large quantities into the environment to cause safety hazards (such as explosion, poisoning, etc.), which is mainly applied in the fields of petrochemical industry, gas delivery, sewage treatment, etc.

[0003] Generally, the concentration of combustible gas is detected by a gas sensor. When the sensor detects that the concentration of combustible gas reaches a set threshold, it sends a signal to the controller. After processing, the controller sends an ignition command to the igniter, ignites the dissipated gas, and makes it burn within a controllable range to avoid large accumulation. It is usually installed at the pipe interface, valve of petrochemical device, or the top of biogas tank in sewage treatment plant. However, when using the existing mechanism to ignite and consume combustible gas, when the concentration of combustible gas is high, the gas may be ignited and return, causing the gas source to be ignited at the same time, which poses a safety hazard. SUMMARY

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An automatic ignition control device for reducing gas dissipation includes a connecting pipe, a gas sensor fixedly installed at the top of the connecting pipe, and an ignition mechanism provided at the top of the connecting pipe. A closed housing is fixedly installed on one side of the connecting pipe, and a closing mechanism is provided inside the closed housing.

[0006] Specifically, a flange is fixedly installed on the outside of the connecting pipe and the closed housing.

[0007] Specifically, a detection head is fixedly installed at the bottom of the gas sensor, the detection head penetrates through the top of the connecting pipe, and a buzzer is fixedly installed on one side of the gas sensor.

[0008] Specifically, the ignition mechanism includes an ignition assembly, an ignition head and a sealing rubber pad. The ignition assembly is fixedly installed at the top of the connecting pipe, a clamping groove is formed on one side of the ignition assembly, the ignition head is clamped and installed on the inner side of the clamping groove, and the sealing rubber pad is fixedly installed on the outer side of the ignition head.

[0009] Specific, the inner side of the closed housing is rotatably mounted with an external gear, the inner side of the closed housing is fixedly installed with a heat insulation shell, the inner side of the heat insulation shell is fixedly installed with a servo motor, the other side of the heat insulation shell is rotatably installed with a driving gear, the output shaft of the servo motor is fixedly connected with the driving gear, and the driving gear is engaged with the external gear, so that the external gear is driven to rotate through the driving gear.

[0010] Specific, the closing mechanism includes a plane threaded disc, a plurality of sliding racks and a plurality of closing metal plates, the plane threaded disc is rotatably installed on the inner wall of one side of the closed housing, the external gear is fixedly sleeved on the outer side of the plane threaded disc, a plurality of sliding grooves are formed in the other inner wall of the closed housing, the sliding grooves are slidably installed with sliding racks, the sliding racks are adapted with the same plane threaded disc, and the sliding racks are fixedly sleeved with closing metal plates.

[0011] Specific, the two sides of the plurality of closing metal plates are fixedly installed with sealing rubber strips, so as to increase the sealing property of the closing metal plates.

[0012] Specific, the one side of the connecting pipe is fixedly installed with a main control unit, the gas sensor, the buzzer alarm, the ignition assembly and the servo motor are electrically connected with the same main control unit.

[0013] Compared with the prior art, the beneficial effects of the utility model lie in that when the gas sensor detects that the combustible gas concentration is high, the main control unit can start the buzzer alarm and the closing mechanism to close the gas inlet at the same time, then the main control unit starts the ignition mechanism to make the gas in the gas outlet pipeline burn, so as to prevent the gas from escaping into the air, and the safety of the equipment is increased. ACCOMPANYING DRAWINGS

[0014] Figure 1 It is a kind of automatic ignition control device that reduces gas to escape and proposes the three-dimensional structure schematic diagram of the structure of the pipeline of the utility model;

[0015] Figure 2 It is a kind of automatic ignition control device that reduces gas to escape and proposes the three-dimensional structure schematic diagram of the structure of the pipeline of the utility model;

[0016] Figure 3 It is a kind of automatic ignition control device that reduces gas to escape and proposes the three-dimensional structure schematic diagram of the structure of the pipeline of the utility model;

[0017] Figure 4 It is a kind of automatic ignition control device that reduces gas to escape and proposes the three-dimensional structure schematic diagram of the structure of the pipeline of the utility model;

[0018] Figure 5The utility model provides a kind of automatic ignition control device's closed mechanism of reducing gas dissipation three-dimensional structure split schematic diagram.

[0019] In the drawing: 1, connecting pipe fitting;2, main control unit;3, gas sensor;4, detection head;5, buzzer alarm;6, ignition assembly;7, ignition head;8, sealing rubber pad;9, flange;10, closed shell;11, heat-insulating shell;12, servo motor;13, driving gear;14, external gear;15, flat threaded disc;16, sliding groove;17, sliding rack;18, closed metal plate;19, sealing rubber strip. DETAILED DESCRIPTION

[0020] REFERENCE Figures 1-5 A kind of automatic ignition control device for reducing gas dissipation, including connecting pipe fitting 1, the top of connecting pipe fitting 1 is fixedly installed with gas sensor 3, the top of connecting pipe fitting 1 is equipped with ignition mechanism;Connecting pipe fitting 1 one side is fixedly installed with closed shell 10, the inside of closed shell 10 is equipped with closed mechanism.

[0021] In the embodiment, the outside of connecting pipe fitting 1 and closed shell 10 is fixedly equipped with flange 9.

[0022] In the embodiment, the bottom of gas sensor 3 is fixedly installed with detection head 4, detection head 4 is fixedly penetrated the top of connecting pipe fitting 1, one side of gas sensor 3 is fixedly installed with buzzer alarm 5.

[0023] In the embodiment, ignition mechanism includes ignition assembly 6, ignition head 7 and sealing rubber pad 8, ignition assembly 6 is fixedly installed at the top of connecting pipe fitting 1, one side of ignition assembly 6 is equipped with the clamping groove, ignition head 7 is clampedly installed at the inside of clamping groove, the outside of ignition head 7 is fixedly equipped with sealing rubber pad 8.

[0024] In the embodiment, the inside of closed shell 10 is rotatably installed with external gear 14, the inside of closed shell 10 is fixedly installed with heat-insulating shell 11, the inside of heat-insulating shell 11 is fixedly installed with servo motor 12, the other side of heat-insulating shell 11 is rotatably installed with driving gear 13, the output shaft of the servo motor is fixedly connected with driving gear, and driving gear 13 is engaged with external gear 14, so as to be rotated by driving gear 13 to drive external gear 14.

[0025] In the embodiment, the closing mechanism comprises a plane threaded disc 15, a plurality of sliding racks 17 and a plurality of closing metal plates 18, the plane threaded disc 15 is rotatably installed on the inner wall of one side of the closing shell 10, the outer tooth gear 14 is fixedly sleeved on the outer side of the plane threaded disc 15, a plurality of sliding grooves 16 are formed on the inner wall of the other side of the closing shell 10, the sliding racks 17 are slidably installed on the inner sides of the sliding grooves 16, the sliding racks 17 are matched with the same plane threaded disc 15, and the closing metal plates 18 are fixedly sleeved on the outer sides of the sliding racks 17.

[0026] In the embodiment, the sealing rubber strips 19 are fixedly installed on the two sides of the closing metal plates 18, so that the sealing property of the closing metal plates 18 is improved.

[0027] In the embodiment, the one side of the connecting pipe fitting 1 is fixedly installed with the main controller 2, the gas sensor 3, the buzzer alarm 5, the ignition assembly 6 and the servo motor 12 are electrically connected with the same main controller 2, the control mode of the gas sensor 3, the buzzer alarm 5, the ignition assembly 6 and the servo motor 12 mentioned in the embodiment is automatically controlled through the main controller 2, the main controller 2 is a PLC controller, the control circuit of the main controller 2 can be realized through simple programming of the person skilled in the art, and belongs to the common knowledge in the art, so the control mode and the circuit connection will not be explained in detail.

[0028] Working principle: when in use, the workers bolt the device with the gas conveying pipeline and the gas outlet pipeline through the two flanges 9, when the combustible gas is diffused in daily use, the detection head 4 in the connecting pipe fitting 1 detects that the concentration of the combustible gas is too high, and feeds back to the gas sensor 3, the gas sensor 3 receives the signal of the combustible gas concentration being too high, feeds back to the main controller 2, the main controller 2 receives the signal from the gas sensor 3, amplifies, filters and processes the signal to remove noise interference, accurately judges whether the gas concentration reaches the ignition threshold, when the ignition threshold is reached, the buzzer alarm 5 is started first to warn the workers, and then the servo motor 12 is started, the servo motor 12 drives the driving gear 13 to rotate, the driving gear 13 drives the outer tooth gear 14 to rotate, the outer tooth gear 14 drives the plane threaded disc 15 to rotate, the plane threaded disc 15 drives the plurality of sliding racks 17 to slide, the plurality of sliding racks 17 slide in the corresponding sliding grooves 16, so that the sliding direction and range of the plurality of sliding racks 17 are limited, the plurality of sliding racks 17 drive the corresponding closing metal plates 18 to move close to each other, the plurality of closing metal plates 18 move close to each other to close the gas inlet, the sealing rubber strips 19 can effectively improve the closing effect, then the main controller 2 starts the ignition assembly 6, the ignition assembly 6 starts the ignition through the ignition head 7 to make the combustible gas burn, completes the treatment of the diffused gas, and then waits for the workers to close the gas conveying pipeline for maintenance.

[0029] The utility model discloses relative to the prior art obtained the technical progress is: utilize the main control unit 2 of setting, can when the combustible gas concentration that gas sensor 3 detected is higher, start buzzer alarm 5's while starting the closed mechanism to the closed gas port, then main control unit 2 starts ignition mechanism, makes the gas in the gas pipeline combustion, prevents to escape to the air, has increased the security of equipment.

Claims

1. An automatic ignition control device for reducing gas escape, characterized in that, It includes a connecting pipe fitting (1), a gas sensor (3) is fixedly installed on the top of the connecting pipe fitting (1), and an ignition mechanism is provided on the top of the connecting pipe fitting (1); A closed shell (10) is fixedly installed on one side of the connecting pipe (1), and a sealing mechanism is provided inside the closed shell (10).

2. The automatic ignition control device for reducing gas escape according to claim 1, characterized in that, Flanges (9) are fixedly fitted on the outer sides of both the connecting pipe (1) and the enclosed shell (10).

3. The automatic ignition control device for reducing gas escape according to claim 2, characterized in that, A detection head (4) is fixedly installed at the bottom of the gas sensor (3), and the detection head (4) is fixedly installed through the top of the connecting pipe (1). A buzzer alarm (5) is fixedly installed on one side of the gas sensor (3).

4. The automatic ignition control device for reducing gas escape according to claim 3, characterized in that, The ignition mechanism includes an ignition assembly (6), an ignition head (7), and a sealing gasket (8). The ignition assembly (6) is fixedly installed on the top of the connecting pipe (1). A snap-fit ​​groove is provided on one side of the ignition assembly (6). The ignition head (7) is snap-fitted into the inner side of the snap-fit ​​groove. The sealing gasket (8) is fixedly sleeved on the outer side of the ignition head (7).

5. An automatic ignition control device for reducing gas escape according to claim 4, characterized in that, An external gear (14) is rotatably mounted on the inner side of the enclosed shell (10). A heat-insulating shell (11) is fixedly mounted on the inner side of the enclosed shell (10). A servo motor (12) is fixedly mounted on the inner side of the heat-insulating shell (11). A drive gear (13) is rotatably mounted on the other side of the heat-insulating shell (11). The output shaft of the servo motor (12) is fixedly connected to the drive gear (13). The drive gear (13) meshes with the external gear (14).

6. The automatic ignition control device for reducing gas escape according to claim 5, characterized in that, The closing mechanism includes a planar threaded disc (15), multiple sliding racks (17), and multiple closing metal plates (18). The planar threaded disc (15) is rotatably mounted on one side of the inner wall of the closed housing (10). The external gear (14) is fixedly sleeved on the outside of the planar threaded disc (15). Multiple sliding grooves (16) are provided on the other side of the inner wall of the closed housing (10). Sliding racks (17) are slidably mounted on the inner side of each sliding groove (16). Each sliding rack (17) is adapted to the same planar threaded disc (15). Each sliding rack (17) is fixedly sleeved on the outer side of each sliding rack (17).

7. An automatic ignition control device for reducing gas escape according to claim 6, characterized in that, Sealing strips (19) are fixedly installed on both sides of multiple enclosed metal plates (18).

8. An automatic ignition control device for reducing gas escape according to claim 7, characterized in that, A main controller (2) is fixedly installed on one side of the connecting pipe (1), and the gas sensor (3), buzzer alarm (5), ignition assembly (6) and servo motor (12) are all connected to the same main controller (2) circuit.

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