A chemical gas leakage detection device

Abstract

The utility model discloses a chemical gas leakage detection device, which specifically relates to the technical field of chemical gas leakage detection, including a bottom plate, a support plate 1 and a support plate 2 are arranged on the top of the bottom plate, a moving mechanism for driving the support plate 1 and the support plate 2 to move is arranged on the bottom plate, a motor capable of driving the moving mechanism is installed on one side of the bottom plate, and a main frame is fixed on the side of the support plate 1 facing the support plate 2. When gas leakage occurs at the pipeline interface of the utility model, the gas pushes the sliding plate to move in the cylindrical groove through the vent hole on the fixed plate, the fixed block on the sliding plate triggers the pressure sensor, the pressure sensor controls the control machine to turn on the alarm and the motor, and the motor drives the bidirectional screw rod to rotate in the opposite direction, so that the two rectangular blocks drive the main frame and the secondary frame to separate, so that the staff does not need to open the main frame and the secondary frame for emergency repair, which improves the speed of the subsequent staff's emergency repair work on the pipeline interface.

Description

Technical Field

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

[0002] Chemical engineering is the abbreviation of "chemical technology", "chemical industry", "chemical engineering", etc. Any technology that uses chemical methods to change the composition and structure of substances or synthesize new substances belongs to chemical production technology, that is, chemical technology. The resulting products are called chemicals or chemical products. In the chemical production process, chemical gases will be released, and pipelines are needed to transport these chemical gases.

[0003] However, the interfaces of chemical gas pipelines may leak due to aging or other reasons. Some chemical gases are flammable and explosive gases. After leakage, they may encounter fire and explode, threatening people's lives to a great extent. The common chemical gas leakage detection devices on the market are installed at the pipeline interfaces. When the staff needs to carry out emergency repairs on the pipeline interfaces, they need to remove the chemical gas leakage detection devices before starting the emergency repair work, thus wasting the repair time. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chemical gas leakage detection device, comprising:

[0005] A bottom plate, a support plate 1 and a support plate 2 are provided on the top of the bottom plate, a moving mechanism for driving the support plate 1 and the support plate 2 to move is provided on the bottom plate, a motor capable of driving the moving mechanism is installed on one side of the bottom plate, a main frame is fixed on the side of the support plate 1 facing the support plate 2, a secondary frame is fixed on the side of the support plate 2 facing the support plate 1, arc grooves are provided on the front and back sides of the support plate 2 and the support plate 1, a controller and an alarm are installed on one side of the support plate 1, a circular hole 1 is provided on the side of the main frame facing the support plate 1, and a circular hole 2 is provided on the support plate 2;

[0006] A fixed column, wherein the fixed column is fixed at the second position of the circular hole on the support plate, a cylindrical groove is provided inside the fixed column, a pressure sensor is installed inside the cylindrical groove, a trigger mechanism capable of triggering the pressure sensor is provided inside the cylindrical groove, and a plurality of air outlet holes are provided on one side of the fixed column relative to the support plate.

[0007] Preferably, the moving mechanism includes a rectangular groove opened on the top of the base plate, two rectangular blocks are arranged in the rectangular groove, both of the two rectangular blocks can slide in the rectangular groove, a bidirectional screw rod is arranged in the rectangular groove, the bidirectional screw rod passes through the two rectangular blocks, the bidirectional screw rod is threadedly connected to the two rectangular blocks, one end of the bidirectional screw rod is rotatably connected to the rectangular groove through a bearing, and the output end of the motor passes through the base plate and is fixedly connected to the other end of the bidirectional screw rod.

[0008] Preferably, the two rectangular blocks are respectively located on the forward and reverse threads of the bidirectional screw rod, and the tops of the two rectangular blocks are respectively fixed to the support plate one and the support plate two.

[0009] Preferably, the trigger mechanism includes a sliding plate provided in the cylindrical groove, the sliding plate can slide in the sliding groove, a guide column is fixed to the side of the sliding plate opposite to the pressure sensor, a fixed plate is fixed inside the second circular hole, the guide column passes through the fixed plate, the guide column can slide on the fixed plate, and a vent hole is opened on the fixed plate.

[0010] Preferably, the contact surface between the sliding plate and the supporting groove is coated with lubricating oil.

[0011] Preferably, support legs are fixed to the bottom of the base plate near the four corners.

[0012] Preferably, sealing gaskets are fixed on the arc-shaped grooves formed on the main frame and the secondary frame.

[0013] Preferably, a fixing block is fixed on the side of the sliding plate facing the pressure sensor.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] When gas leakage occurs at the pipeline interface, the gas pushes the sliding plate to move in the cylindrical groove through the vent holes on the fixed plate. The fixed block on the sliding plate triggers the pressure sensor. The pressure sensor controls the control machine to turn on the alarm and the motor. The motor drives the bidirectional screw to rotate in the opposite direction, so that the two rectangular blocks drive the main frame and the secondary frame to separate, so that the staff does not need to open the main frame and the secondary frame for emergency repairs, which improves the speed of subsequent staff's emergency repair work on the pipeline interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 It is a partial structural sectional view of the utility model.

[0020] Description of reference numerals:

[0021] 1. Bottom plate; 2. Support plate 2; 3. Secondary frame; 4. Main frame; 5. Support plate 1; 6. Fixed column; 7. Controller; 8. Motor; 9. Support leg; 10. Rectangular slot; 11. Bidirectional screw rod; 12. Rectangular block; 13. Alarm; 14. Round hole 1; 15. Round hole 2; 16. Vent; 17. Column slot; 18. Pressure sensor; 19. Fixed block; 20. Sliding plate; 21. Fixed plate; 22. Guide column; 23. Vent. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Reference Figure 1-Figure 3 As shown, a chemical gas leakage detection device comprises:

[0024] A base plate 1, a support plate 1 5 and a support plate 2 2 are arranged on the top of the base plate 1, a moving mechanism for driving the support plate 1 5 and the support plate 2 2 to move is arranged on the base plate 1, a motor 8 capable of driving the moving mechanism is installed on one side of the base plate 1, a main frame 4 is fixed on the side of the support plate 1 5 facing the support plate 2 2, a secondary frame 3 is fixed on the side of the support plate 2 2 facing the support plate 1 5, arc grooves are provided on the front and back sides of the support plate 2 2 and the support plate 1 5, a controller 7 and an alarm 13 are installed on one side of the support plate 1 5, a circular hole 14 is provided on the side of the main frame 4 facing the support plate 1 5, a circular hole 2 15 is provided on the support plate 2 2, and the moving mechanism drives the main frame 4 and the secondary frame 3 to wrap the pipeline interface.

[0025] A fixed column 6 is fixed at the position of the circular hole 2 15 on the support plate 1 5 . A cylindrical groove 17 is provided inside the fixed column 6 . A pressure sensor 18 is installed inside the cylindrical groove 17 . A trigger mechanism capable of triggering the pressure sensor 18 is provided inside the cylindrical groove 17 . A plurality of air outlet holes 23 are provided on one side of the fixed column 6 relative to the support plate 1 . When gas leaks, the air pressure in the main frame 4 and the sub-frame 3 increases, and the air pressure will push the trigger mechanism to trigger the pressure sensor 18 .

[0026] Furthermore, the moving mechanism includes a rectangular groove 10 formed on the top of the base plate 1, two rectangular blocks 12 are arranged in the rectangular groove 10, both of which can slide in the rectangular groove 10, a bidirectional screw rod 11 is arranged in the rectangular groove 10, the bidirectional screw rod 11 passes through the two rectangular blocks 12, the bidirectional screw rod 11 is threadedly connected to the two rectangular blocks 12, one end of the bidirectional screw rod 11 is rotatably connected to the rectangular groove 10 through a bearing, the output end of the motor 8 passes through the base plate 1 and is fixedly connected to the other end of the bidirectional screw rod 11, the motor 8 drives the bidirectional screw rod 11 to rotate, and the bidirectional screw rod 11 drives the two rectangular blocks 12 to move in opposite directions, so that the main frame 4 and the secondary frame 3 are merged or separated.

[0027] Furthermore, the two rectangular blocks 12 are respectively located on the positive and negative threads of the bidirectional screw rod 11, and the tops of the two rectangular blocks 12 are respectively fixed to the support plate 1 5 and the support plate 2 2, so that the rectangular blocks 12 can drive the support plate 1 5 and the support plate 2 2 to move.

[0028] Furthermore, the trigger mechanism includes a sliding plate 20 provided in the cylindrical groove 17, the sliding plate 20 can slide in the sliding groove, a guide column 22 is fixed to the side of the sliding plate 20 opposite to the pressure sensor 18, a fixed plate 21 is fixed inside the circular hole 15, the guide column 22 passes through the fixed plate 21, the guide column 22 can slide on the fixed plate 21, and a vent hole 16 is opened on the fixed plate 21. The gas pushes the sliding plate 20 to move in the cylindrical groove 17, and at the same time the sliding column slides on the fixed plate 21, and the fixed block 19 on the sliding plate 20 triggers the pressure sensor 18.

[0029] Furthermore, the contact surface between the sliding plate 20 and the supporting groove is coated with lubricating oil.

[0030] Furthermore, support legs 9 are fixed to the bottom of the base plate 1 near the four corners to facilitate supporting the base plate 1 and improve the stability of the base plate 1.

[0031] Furthermore, sealing gaskets are fixed on the arc grooves formed on the main frame 4 and the secondary frame 3 to ensure the sealing of the subjective questions and the interior of the secondary frame 3 .

[0032] Furthermore, a fixing block 19 is fixed on the side of the sliding plate 20 facing the pressure sensor 18 to facilitate triggering the pressure sensor 18 .

[0033] Through the above technical solution:

[0034] When in use, the device is placed at the pipeline interface position, and the motor 8 is turned on. The motor 8 drives the bidirectional screw rod 11 to rotate, and the bidirectional screw rod 11 drives the two rectangular blocks 12 to move towards each other, so that the main frame 4 and the secondary frame 3 are merged. When gas leakage occurs at the pipeline interface, the air pressure in the main frame 4 and the secondary frame 3 increases, and the gas pushes the sliding plate 20 to move in the cylindrical groove 17 through the vent holes 16 on the fixed plate 21. At the same time, the sliding column slides on the fixed plate 21, and the fixed block 19 on the sliding plate 20 triggers the pressure sensor 18. The pressure sensor 18 controls the control machine to turn on the alarm 13 and the motor 8. The motor 8 drives the bidirectional screw rod 11 to rotate in the opposite direction, so that the two rectangular blocks 12 drive the main frame 4 and the secondary frame 3 to separate, so that the staff does not need to open the main frame 4 and the secondary frame 3 for emergency repair, thereby improving the speed of subsequent staff's emergency repair work on the pipeline interface.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A chemical gas leakage detection device, characterized in that: include: A bottom plate (1), wherein a support plate 1 (5) and a support plate 2 (2) are provided on the top of the bottom plate (1), a moving mechanism for driving the support plate 1 (5) and the support plate 2 (2) to move is provided on the bottom plate (1), a motor (8) capable of driving the moving mechanism is installed on one side of the bottom plate (1), a main frame (4) is fixed on the side of the support plate 1 (5) facing the support plate 2 (2), a secondary frame (3) is fixed on the side of the support plate 2 (2) facing the support plate 1 (5), arc grooves are provided on the front and back sides of the support plate 2 (2) and the support plate 1 (5), a controller (7) and an alarm (13) are installed on one side of the support plate 1 (5), a round hole 1 (14) is provided on the side of the main frame (4) facing the support plate 1 (5), and a round hole 2 (15) is provided on the support plate 2 (2); A fixed column (6), the fixed column (6) being fixed at the position of the second circular hole (15) on the first support plate (5), the fixed column (6) being provided with a columnar groove (17) inside, a pressure sensor (18) being installed inside the columnar groove (17), a trigger mechanism capable of triggering the pressure sensor (18) being provided inside the columnar groove (17), and a plurality of air outlet holes (23) being provided on one side of the fixed column (6) relative to the first support plate.

2. A chemical gas leakage detection device according to claim 1, characterized in that: The moving mechanism comprises a rectangular groove (10) provided at the top of a bottom plate (1), two rectangular blocks (12) being arranged in the rectangular groove (10), both of the two rectangular blocks (12) being able to slide in the rectangular groove (10), a bidirectional screw rod (11) being arranged in the rectangular groove (10), the bidirectional screw rod (11) passing through the two rectangular blocks (12), the bidirectional screw rod (11) being threadedly connected to the two rectangular blocks (12), one end of the bidirectional screw rod (11) being rotatably connected to the rectangular groove (10) via a bearing, and the output end of the motor (8) passing through the bottom plate (1) being fixedly connected to the other end of the bidirectional screw rod (11).

3. A chemical gas leakage detection device according to claim 2, characterized in that: The two rectangular blocks (12) are respectively located on the forward and reverse threads of the bidirectional screw rod (11), and the tops of the two rectangular blocks (12) are respectively fixed to the first support plate (5) and the second support plate (2).

4. A chemical gas leakage detection device according to claim 1, characterized in that: The trigger mechanism comprises a sliding plate (20) arranged in the cylindrical groove (17), the sliding plate (20) can slide in the sliding groove, a guide column (22) is fixed on the side of the sliding plate (20) opposite to the pressure sensor (18), a fixing plate (21) is fixed inside the second circular hole (15), the guide column (22) passes through the fixing plate (21), the guide column (22) can slide on the fixing plate (21), and a vent hole (16) is opened on the fixing plate (21).

5. A chemical gas leakage detection device according to claim 4, characterized in that: The contact surface between the sliding plate (20) and the supporting groove is coated with lubricating oil.

6. A chemical gas leakage detection device according to claim 1, characterized in that: Support legs (9) are fixed to the bottom of the base plate (1) near the four corners.

7. A chemical gas leakage detection device according to claim 1, characterized in that: Sealing pads are fixed on the arc-shaped grooves provided on the main frame (4) and the secondary frame (3).

8. A chemical gas leakage detection device according to claim 5, characterized in that: A fixing block (19) is fixed on the side of the sliding plate (20) facing the pressure sensor (18).

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