Chemical gas leakage detection device

Abstract

The utility model discloses a chemical gas leakage detection device, which particularly relates to the technical field of chemical gas leakage detection and comprises a main frame body, a secondary frame body is arranged at the bottom of the main frame body, semicircular openings are formed in two sides of the secondary frame body and the main frame body, arc-shaped plates are fixed at the semicircular openings, and a rectangular opening is formed in the top of the main frame body. A controller and an alarm are installed on the top outside the main frame body. Chemical gas in the main frame body and the secondary frame body pushes the main sliding plate upwards, so that the main sliding plate extrudes the spring, then the spring extrudes the secondary sliding plate upwards, the secondary sliding plate applies pressure to the pressure touch device, the pressure sensor is triggered, the pressure touch device controls the controller to start the alarm, and the alarm gives an alarm. And meanwhile, the controller can open the electromagnetic valve on the gas inlet pipe, so that the leakage detection function of the chemical gas is completed.

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] During the chemical production process, some chemical gases will be produced. Both useful chemical gases and chemical waste gases are transported by pipelines and need to be strictly controlled after they are produced to prevent gas leakage from affecting the external environment. Chemical gases may leak at the interfaces of the pipelines.

[0003] At present, general chemical gas leakage detection devices on the market can detect chemical gases, but they cannot collect chemical gases. Chemical gases will still enter the air. These chemical gases usually contain harmful elements, and some chemical gases may explode when exposed to fire. If they leak accidentally, they may have a certain impact on human health. 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 main frame, a secondary frame is provided at the bottom of the main frame, semicircular openings are provided on both sides of the secondary frame and the main frame, arc plates are fixed at the semicircular openings, a rectangular opening is provided at the top of the main frame, and a controller and an alarm are installed on the top of the outside of the main frame;

[0006] A fixed column, the fixed column is located at the top of the main frame, a sliding groove is provided inside the fixed column, the sliding groove is communicated with the rectangular opening, a pressure sensor is provided inside the sliding groove, and a pressure mechanism capable of triggering the pressure sensor is provided inside the sliding groove;

[0007] The box body is arranged on one side of the main frame body, an air inlet pipe is arranged between the fixing column and the box body, and an exhaust pipe is installed on one side of the box body.

[0008] Preferably, the pressure mechanism includes a main sliding plate arranged inside a rectangular groove, a secondary sliding plate is arranged inside the sliding groove at the top of the main sliding plate, a spring is arranged between the main sliding plate and the secondary sliding plate, and both ends of the spring are fixedly connected to the main sliding plate and the secondary sliding plate respectively.

[0009] Preferably, two fixing plates are provided inside the rectangular groove, the two fixing plates are located at the bottom of the main sliding plate, and the two fixing plates are respectively fixed to the inner walls on both sides of the sliding groove.

[0010] Preferably, the pressure sensor is installed between the inside of the rectangular groove and the top of the secondary sliding plate.

[0011] Preferably, a circular hole is opened inside the fixing column, and the circular hole is connected to the air inlet pipe.

[0012] Preferably, solenoid valves are installed on both the exhaust pipe and the intake pipe.

[0013] Preferably, fixing blocks are fixed at the four corners of the main frame and the four corners of the secondary frame, and the fixing blocks on the main frame and the fixing blocks on the secondary frame are connected by bolts.

[0014] Preferably, sealing gaskets are provided on the facing surfaces of the two arc-shaped plates, and sealing gaskets are fixed on the contact surfaces of the main frame and the secondary frame.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The chemical gas inside the main frame and the secondary frame pushes the main sliding plate upward, causing the main sliding plate to squeeze the spring, and then the spring squeezes the secondary sliding plate upward. The secondary sliding plate will apply pressure to the pressure sensor, thereby triggering the pressure sensor. The pressure sensor will control the controller to turn on the alarm, and the controller will open the solenoid valve on the intake pipe, thereby completing the leakage detection function of the chemical gas.

[0017] 2. The main sliding plate is pushed upward by the chemical gas. When the main sliding plate moves to above the circular hole inside the rectangular groove, the chemical gas will enter the box through the air inlet pipe, thereby completing the collection of the chemical gas and avoiding the leakage of the chemical gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a side structural schematic diagram of the utility model;

[0021] Figure 3 It is a partial structural sectional view of the utility model;

[0022] Figure 4 This is a cross-sectional view of the internal structure of the fixing column of the utility model.

[0023] Description of reference numerals:

[0024] 1. Main frame; 2. Secondary frame; 3. Arc plate; 4. Fixing block; 5. Bolt; 6. Controller; 7. Fixing column; 8. Box; 9. Exhaust pipe; 10. Intake pipe; 11. Alarm; 12. Sliding groove; 13. Fixing plate; 14. Main sliding plate; 15. Round hole; 16. Spring; 17. Pressure sensor; 18. Secondary sliding plate. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1-Figure 4 As shown, a chemical gas leakage detection device comprises:

[0027] A main frame 1, a secondary frame 2 is provided at the bottom of the main frame 1, semicircular openings are provided on both sides of the secondary frame 2 and the main frame 1, arc plates 3 are fixed at the semicircular openings, a rectangular opening is provided at the top of the main frame 1, and a controller 6 and an alarm 11 are installed on the top of the main frame 1;

[0028] A fixed column 7, the fixed column 7 is located at the top of the main frame 1, a sliding groove 12 is provided inside the fixed column 7, the sliding groove 12 is communicated with the rectangular opening, a pressure sensor 17 is provided inside the sliding groove 12, and a pressure mechanism capable of triggering the pressure sensor 17 is provided inside the sliding groove 12;

[0029] The box body 8 is arranged at one side of the main frame body 1 , an air inlet pipe 10 is arranged between the fixing column 7 and the box body 8 , and an exhaust pipe 9 is installed at one side of the box body 8 .

[0030] Furthermore, the pressure mechanism includes a main sliding plate 14 arranged inside the rectangular groove, a secondary sliding plate 18 is arranged inside the sliding groove 12 at the top of the main sliding plate 14, a spring 16 is arranged between the main sliding plate 14 and the secondary sliding plate 18, and both ends of the spring 16 are fixedly connected to the main sliding plate 14 and the secondary sliding plate 18 respectively. When gas leaks, the gas will push the main sliding plate 14 upward, so that the main sliding plate 14 squeezes the spring 16, and then the spring 16 squeezes the secondary sliding plate 18 upward, and the secondary sliding plate 18 will apply pressure to the pressure sensor, thereby triggering the pressure sensor 17.

[0031] Furthermore, two fixing plates 13 are provided inside the rectangular groove. The two fixing plates 13 are located at the bottom of the main sliding plate 14 . The two fixing plates 13 are respectively fixed to the inner walls on both sides of the sliding groove 12 . The two fixing plates 13 play the role of supporting the main sliding plate 14 .

[0032] Further, the pressure sensor 17 is installed between the inside of the rectangular groove and the top of the secondary sliding plate 18 .

[0033] Furthermore, a circular hole 15 is provided inside the fixing column 7 , and the circular hole 15 is connected to the air inlet pipe 10 , so as to facilitate the gas to enter the box body 8 from the air inlet pipe 10 .

[0034] Furthermore, solenoid valves are installed on both the exhaust pipe 9 and the intake pipe 10 to facilitate the control of the opening and closing of the exhaust pipe 9 and the intake pipe.

[0035] Furthermore, fixing blocks 4 are fixed at the four corners of the main frame 1 and the four corners of the secondary frame 2. The fixing blocks 4 on the main frame 1 and the fixing blocks 4 on the secondary frame 2 are connected by bolts 5 to facilitate fixing the main frame 1 and the secondary frame 2.

[0036] Furthermore, sealing gaskets are provided on the facing surfaces of the two arc-shaped plates 3 , and sealing gaskets are fixed on the contact surfaces of the main frame 1 and the secondary frame 2 , so as to improve the sealing performance of the main frame 1 and the secondary frame 2 .

[0037] Through the above technical solution:

[0038] When in use, the main frame 1 and the secondary frame 2 are fixed to the pipeline interface by bolts 5. When chemical gas leaks, the chemical gas will diffuse between the main frame 1 and the secondary frame 2. When the chemical gas pressure inside the main frame 1 and the secondary frame 2 is too high, the chemical gas will push the main sliding plate 14 upward, causing the main sliding plate 14 to squeeze the spring 16, and then the spring 16 will squeeze the secondary sliding plate 18 upward, and the secondary sliding plate 18 will apply pressure to the pressure toucher, thereby triggering the pressure sensor 17. The pressure toucher will control the controller 6 to turn on the alarm 11, and the controller 6 will open the solenoid valve on the intake pipe 10, thereby completing the leakage detection function of the chemical gas.

[0039] When the chemical gas pressure inside the main frame 1 and the secondary frame 2 is too high, the chemical gas will push the main sliding plate 14 to move upward. When the main sliding plate 14 moves to above the circular hole 15 inside the rectangular groove, the chemical gas will enter the box 8 through the air inlet pipe 10, thereby completing the collection of the chemical gas and avoiding leakage of the chemical gas.

[0040] 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 main frame (1), a secondary frame (2) is provided at the bottom of the main frame (1), semicircular openings are provided on both sides of the secondary frame (2) and the main frame (1), arc-shaped plates (3) are fixed at the semicircular openings, a rectangular opening is provided at the top of the main frame (1), and a controller (6) and an alarm (11) are installed on the top of the main frame (1); A fixed column (7), the fixed column (7) being located at the top of the main frame (1), a sliding groove (12) being provided inside the fixed column (7), the sliding groove (12) being communicated with the rectangular opening, a pressure sensor (17) being provided inside the sliding groove (12), and a pressure mechanism capable of triggering the pressure sensor (17) being provided inside the sliding groove (12); A box body (8) is arranged on one side of the main frame body (1), an air intake pipe (10) is arranged between the fixing column (7) and the box body (8), and an exhaust pipe (9) is installed on one side of the box body (8).

2. A chemical gas leakage detection device according to claim 1, characterized in that: The pressure mechanism comprises a main sliding plate (14) arranged inside the rectangular groove, a secondary sliding plate (18) is arranged inside the sliding groove (12) at the top of the main sliding plate (14), a spring (16) is arranged between the main sliding plate (14) and the secondary sliding plate (18), and two ends of the spring (16) are fixedly connected to the main sliding plate (14) and the secondary sliding plate (18) respectively.

3. A chemical gas leakage detection device according to claim 2, characterized in that: Two fixing plates (13) are arranged inside the rectangular groove, the two fixing plates (13) are located at the bottom of the main sliding plate (14), and the two fixing plates (13) are respectively fixed to the inner walls on both sides of the sliding groove (12).

4. A chemical gas leakage detection device according to claim 1, characterized in that: The pressure sensor (17) is installed between the inside of the rectangular groove and the top of the secondary sliding plate (18).

5. A chemical gas leakage detection device according to claim 1, characterized in that: A circular hole (15) is provided inside the fixing column (7), and the circular hole (15) is connected to the air intake pipe (10).

6. A chemical gas leakage detection device according to claim 1, characterized in that: Solenoid valves are installed on both the exhaust pipe (9) and the intake pipe (10).

7. A chemical gas leakage detection device according to claim 1, characterized in that: Fixed blocks (4) are fixed at the four corners of the main frame (1) and the four corners of the secondary frame (2); the fixed blocks (4) on the main frame (1) and the fixed blocks (4) on the secondary frame (2) are connected via bolts (5).

8. A chemical gas leakage detection device according to claim 1, characterized in that: The facing surfaces of the two arc-shaped plates (3) are provided with sealing gaskets, and the contact surfaces of the main frame (1) and the secondary frame (2) are fixed with sealing gaskets.

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