Explosion-proof shell for fixedly installing pumping type phenol gas detector

Abstract

The utility model discloses an explosion-proof housing for fixedly installing a pump suction type phenol gas detector, which comprises an installing seat, the installing seat is provided with an explosion-proof housing, the explosion-proof housing is internally provided with a pump suction type detector, the explosion-proof housing is provided with a plurality of chambers, the chambers are internally provided with air bags, the air bags are internally provided with carbon dioxide solution, and the carbon dioxide solution is filled with a carbon dioxide solution. A movable plate is arranged on the side, facing the pumping type detector, of the air bag, the movable plate is connected to the inner wall of the anti-explosion shell through a movable assembly, and a blasting assembly is arranged on the side, facing the air bag, of the movable plate. When the pump suction type phenol gas detector breaks down and internal phenol gas is burnt, the detector and the phenol gas which are burnt can be extinguished in time, so that the possibility that the detector further explodes can be avoided, a series of reactions are isolated in the explosion-proof shell, and the service life of the explosion-proof shell is prolonged. The surrounding working environment and working personnel can be protected, and the safety and the explosion-proof effect are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof technology for pump-suction phenol gas detectors, specifically to an explosion-proof housing for a fixed installation of a pump-suction phenol gas detector. Background Technology

[0002] A pump-suction phenol gas detector is an instrument used to detect the concentration of phenol gas in the environment. Chinese Patent No. CN202323087738.X relates to a gas detector with good airtightness, including a base shell. A pump-suction sensor cap is threadedly connected to the bottom of the base shell. The pump-suction sensor cap has two sealing mechanisms and two sealing assemblies. Each sealing mechanism includes a housing fixedly connected to the pump-suction sensor cap. A motor is fixedly installed inside the housing. The output shaft of the motor is fixedly connected to a threaded rod, and a threaded block is threadedly connected to the outer side of the threaded rod. This gas detector with good airtightness, through the sealing mechanism, enables the gas detector to have a sealing function, achieving a sealing effect at the connection between the base shell and the pump-suction sensor cap. This increases the sealing performance after the base shell and the pump-suction sensor cap are connected, thereby increasing the detection accuracy of the gas detector, facilitating user operation, and improving the practicality of the gas detector.

[0003] Based on the above, the inventors have discovered the following problems: The above device can increase the sealing performance after the bottom shell is connected to the pump-suction sensor cap, thereby increasing the detection accuracy of the gas detector. However, it ignores the risk that during the use of the pump-suction sensor, due to internal faults, the detected gas may remain inside the detector and the internal electrical components may malfunction, generating an open flame that ignites the internal detected gas, thereby causing the pump-suction detector to explode. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixed installation explosion-proof housing for a pump-suction phenol gas detector, including a mounting base, on which the explosion-proof housing is mounted, and a pump-suction detector is installed inside the explosion-proof housing. An exhaust pipe is provided on one side of the pump-suction detector, and an extraction pipe is provided on the other side. Both the exhaust pipe and the extraction pipe penetrate the explosion-proof housing and extend outside the housing. Explosion-proof glass is provided on the side of the explosion-proof housing away from the mounting base. The explosion-proof housing has several chambers, each containing an airbag filled with a carbon dioxide solution. A movable plate is provided on the side of the airbag facing the pump-suction detector. The movable plate is connected to the inner wall of the explosion-proof housing via a movable component. A bursting component is provided on the side of the movable plate facing the airbag.

[0005] Furthermore, the movable component includes a locking block and a movable block. Movable blocks are provided on both sides of several movable plates. A locking block is provided on the explosion-proof shell and on one side of the movable block. The locking block is adapted to the movable block. A plurality of cylindrical holes are provided on the side of the locking block facing the movable block, and springs are provided in the cylindrical holes.

[0006] Furthermore, one end of the spring is connected to the bottom end of the cylindrical hole, and the other end of the spring is connected to the movable block.

[0007] Furthermore, the blasting assembly includes needles, and a pair of limiting plates are provided on the side of the movable plate facing the airbag. A plurality of needles are provided in the pair of limiting plates, and the output direction of the needles is towards the airbag. A limiting sleeve is provided on the side of the airbag facing the movable plate, and the limiting sleeve is fitted outside the limiting plates.

[0008] Furthermore, the mounting base is provided with several bolts for installation.

[0009] Furthermore, both the exhaust pipe and the extraction pipe are sealed to the explosion-proof enclosure, and the air pressure inside the explosion-proof enclosure is the same as the outdoor pressure.

[0010] Furthermore, a warning light is provided on one side of the explosion-proof housing, and the warning light is electrically connected to the pump-suction detector.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the explosion-proof housing of the fixed-installation pump-suction phenol gas detector is reasonable and has the following advantages:

[0012] (1) Through the design of the active components and the blasting components, when the pump-suction phenol gas detector malfunctions and causes the internal phenol gas to burn, the burning detector and phenol gas can be extinguished in time, thereby avoiding the possibility of the detector exploding further. Moreover, this series of reactions are isolated in the explosion-proof enclosure, and the normal operation activities around will not be greatly disturbed, which greatly improves the explosion-proof safety level of the entire work area and maintains the stability and safety of production operations.

[0013] (2) By sealing the exhaust pipe and the extraction pipe with the explosion-proof housing, when the pump-suction detector is operating stably, no phenol residue will be generated in the space between the explosion-proof housing and the pump-suction detector. Even if other conditions are met by chance, such as sudden situations such as static discharge inside the equipment, there will not be enough phenol vapor to interact with it and cause a combustion reaction, which reduces the risk of combustion, explosion or combustion in the daily operation of the pump-suction detector and improves the safety of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is an enlarged structural schematic diagram of the blasting component of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the active component of this utility model.

[0018] In the diagram: 1. Mounting base; 2. Explosion-proof housing; 3. Warning light; 4. Exhaust pipe; 5. Suction pipe; 6. Explosion-proof glass; 7. Chamber; 8. Airbag; 9. Pump-type detector; 10. Movable plate; 11. Limiting plate; 12. Needle; 13. Limiting sleeve; 14. Locking block; 15. Movable block; 16. Spring; 17. Cylindrical hole; 18. Carbon dioxide solution. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 The present invention provides a technical solution as follows:

[0021] Example:

[0022] In this embodiment, a fixedly installed explosion-proof housing for a pump-suction phenol gas detector includes a mounting base 1, an explosion-proof housing 2 on the mounting base 1, a pump-suction detector 9 inside the explosion-proof housing 2, an exhaust pipe 4 on one side of the pump-suction detector 9, and an extraction pipe 5 on the other side of the pump-suction detector 9. Both the exhaust pipe 4 and the extraction pipe 5 penetrate the explosion-proof housing 2 and extend out of the explosion-proof housing 2. An explosion-proof glass 6 is provided on the side of the explosion-proof housing 2 away from the mounting base 1. The explosion-proof housing 2 has several chambers 7, each chamber 7 containing an airbag 8 containing a carbon dioxide solution 18. A movable plate 10 is provided on the side of the airbag 8 facing the pump-suction detector 9. The movable plate 10 is connected to the inner wall of the explosion-proof housing 2 via a movable component. A bursting component is provided on the side of the movable plate 10 facing the airbag 8.

[0023] like Figure 2As shown, the dimensions and shapes of the chambers 7 and the airbags 8 are different. Since the dimensions and shapes of the chambers 7 and the airbags 8 are not limited, and the specific shapes and dimensions of the airbags 8 and the chambers 7 do not affect the main principle of this design, and the principles of the explosive components and the movable components connected to them are the same, no limitation is made here.

[0024] The explosion-proof housing 2, explosion-proof glass 6, and mounting base 1 are installed in a sealed manner;

[0025] When the pump-suction detector 9 malfunctions, and an open flame is generated within the detector body, igniting the phenol gas it detects, the detector 9 is ignited. The heat generated by combustion causes the air inside the explosion-proof housing 2 to expand, rapidly pushing the movable plate 10 towards the airbag 8, stretching the spring 16, and creating a gap between the movable block 15 and the locking block 14. Simultaneously, the limiting plate 11 moves towards the airbag 8 within the limiting sleeve 13, causing the needle 12 to puncture the airbag 8. This causes the carbon dioxide solution 18 inside the airbag 8 to rapidly vaporize, passing through the gap between the locking block 14 and the movable block 15, and then filling the space between the explosion-proof housing 2 and the pump-suction detector 9. Since the vaporized carbon dioxide solution 18 contains 30% to 50% air, the vaporization process results in a vapor content of 30% to 50%. When the gas can extinguish the combustion, it can extinguish the burning phenol and the burning pump-suction detector 9 in time, thus avoiding the explosion of the pump-suction detector 9. When the carbon dioxide solution 18 is sprayed out from the gasbag 8, it rapidly vaporizes from the liquid into gas, absorbs some heat from the surroundings, and can also play a cooling role, thereby enhancing the explosion-proof and fire-proof effect of the pump-suction detector 9.

[0026] The movable component includes a locking block 14 and a movable block 15. Movable blocks 15 are provided on both sides of several movable plates 10. A locking block 14 is provided on the explosion-proof shell 2 and on one side of the movable block 15. The locking block 14 is adapted to the movable block 15. A plurality of cylindrical holes 17 are provided on the side of the locking block 14 facing the movable block 15. A spring 16 is provided in the cylindrical holes 17.

[0027] Through the design of the movable block 15, the locking block 14, and the spring 16, when the movable plate 10 is not subjected to external force, the movable block 15 is tightly fitted with the locking block 14 under the action of the spring 16, so that the airbag 8 is in a sealed state, and at this time the needle 12 is away from the airbag 8. When the movable plate 10 is subjected to a force towards the airbag 8, that is, a force opposite to the spring 16, the locking block 14 and the movable block 15 move away from each other and a gap is generated between the locking block 14 and the movable block 15. At this time, the airbag 8 is connected to the interior of the explosion-proof shell 2. When the needle 12 punctures the airbag 8, the carbon dioxide solution 18 inside the airbag 8 will move to the gap between the explosion-proof shell 2 and the pump-type detector 9.

[0028] One end of the spring 16 is connected to the bottom end of the cylindrical hole 17, and the other end of the spring 16 is connected to the movable block 15.

[0029] The blasting assembly includes a needle 12. The movable plate 10 is provided with a pair of limiting plates 11 on the side facing the airbag 8. A plurality of needles 12 are provided in the pair of limiting plates 11. The output direction of the needles 12 is towards the airbag 8. The airbag 8 is provided with a limiting sleeve 13 on the side facing the movable plate 10. The limiting sleeve 13 is sleeved on the limiting plate 11.

[0030] The aforementioned needle 12 is used to puncture the airbag 8. The cooperation between the limiting plate 11 and the limiting sleeve 13 makes the movement trajectory of the needle 12 more stable, avoiding misalignment between the needle 12 and the surface of the airbag 8, thus eliminating the risk of the needle 12 puncturing the airbag 8 and improving the explosion-proof accuracy of the device.

[0031] The mounting base 1 is provided with several bolts for installation.

[0032] The exhaust pipe 4 and the air extraction pipe 5 are both sealed to the explosion-proof housing 2, and the air pressure inside the explosion-proof housing 2 is the same as the outdoor pressure.

[0033] With the design that both the exhaust pipe 4 and the suction pipe 5 are sealed to the explosion-proof housing 2, when the pump-suction detector 9 is operating stably, no phenol residue will be generated in the space between the explosion-proof housing 2 and the pump-suction detector 9, which reduces the risk of phenol combustion during the daily operation of the pump-suction detector 9 and improves equipment safety.

[0034] The explosion-proof housing 2 is provided with a warning light 3 on one side, and the warning light 3 is electrically connected to the pump-suction detector 9;

[0035] The design of the warning light 3 can alert workers to the explosion reaction inside the explosion-proof enclosure 2, and allow them to cut off the power supply or take protective measures in time.

[0036] Working Principle: During use, when the pump-suction detector 9 malfunctions, an open flame is generated within the detector body, igniting the phenol gas it detects. The resulting heat from combustion causes the air inside the explosion-proof housing 2 to expand, rapidly pushing the movable plate 10 towards the airbag 8, stretching the spring 16, and creating a gap between the movable block 15 and the locking block 14. Simultaneously, the limiting plate 11 moves towards the airbag 8 within the limiting sleeve 13, causing the needle 12 to puncture the airbag 8. This allows the carbon dioxide solution 18 inside the airbag 8 to rapidly vaporize, passing through the gap between the locking block 14 and the movable block 15, and filling the space between the explosion-proof housing 2 and the pump-suction detector 9. Since the vaporized carbon dioxide solution 18 contains 30%–50% air, its vaporization process is particularly effective. When the gas can extinguish the combustion, it can extinguish the burning phenol and the burning pump-suction detector 9 in time, thus avoiding the explosion of the pump-suction detector 9. When the carbon dioxide solution 18 is sprayed out from the gasbag 8, it rapidly vaporizes from the liquid into gas, absorbs some heat from the surroundings, and can also play a cooling role, thereby enhancing the explosion-proof and fire-proof effect of the pump-suction detector 9.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An explosion-proof housing for a fixed installation of a pump-suction phenol gas detector, including a mounting base (1), characterized in that: The mounting base (1) is provided with an explosion-proof housing (2). The explosion-proof housing (2) is provided with a pump-suction detector (9). The pump-suction detector (9) is provided with an exhaust pipe (4) on one side and an air extraction pipe (5) on the other side. The exhaust pipe (4) and the air extraction pipe (5) both penetrate the explosion-proof housing (2) and extend out of the explosion-proof housing (2). The explosion-proof housing (2) is provided with explosion-proof glass (6) on the side away from the mounting base (1). The explosion-proof housing (2) has several chambers (7). The chambers (7) are provided with airbags (8). The airbags (8) are provided with carbon dioxide solution (18). The side of the airbags (8) facing the pump-suction detector (9) is provided with a movable plate (10). The movable plate (10) is connected to the inner wall of the explosion-proof housing (2) through a movable component. The side of the movable plate (10) facing the airbags (8) is provided with a bursting component.

2. The explosion-proof housing for a fixed-installation pump-suction phenol gas detector according to claim 1, characterized in that: The movable component includes a locking block (14) and a movable block (15). Movable blocks (15) are provided on both sides of several movable plates (10). A locking block (14) is provided on the explosion-proof shell (2) and on one side of the movable block (15). The locking block (14) is adapted to the movable block (15). A plurality of cylindrical holes (17) are provided on the side of the locking block (14) facing the movable block (15). A spring (16) is provided in the cylindrical hole (17).

3. The explosion-proof housing for a fixed-installation pump-suction phenol gas detector according to claim 2, characterized in that: One end of the spring (16) is connected to the bottom end of the cylindrical hole (17), and the other end of the spring (16) is connected to the movable block (15).

4. The explosion-proof housing for a fixed-installation pump-suction phenol gas detector according to claim 3, characterized in that: The blasting assembly includes a needle (12). The movable plate (10) is provided with a pair of limiting plates (11) on the side facing the airbag (8). A plurality of needles (12) are provided in the pair of limiting plates (11). The output direction of the needles (12) is towards the airbag (8). The airbag (8) is provided with a limiting sleeve (13) on the side facing the movable plate (10). The limiting sleeve (13) is fitted outside the limiting plate (11).

5. The explosion-proof housing for a fixed-installation pump-suction phenol gas detector according to claim 4, characterized in that: The mounting base (1) is provided with several bolts for installation.

6. The explosion-proof housing for a fixed-installation pump-suction phenol gas detector according to claim 5, characterized in that: The exhaust pipe (4) and the suction pipe (5) are both sealed to the explosion-proof housing (2), and the air pressure inside the explosion-proof housing (2) is the same as the outdoor pressure.

7. The explosion-proof housing for a fixed-installation pump-suction phenol gas detector according to claim 6, characterized in that: The explosion-proof housing (2) is provided with a warning light (3) on one side, and the warning light (3) is electrically connected to the pump-suction detector (9).

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