Sampling device for explosion-proof gas

Abstract

The utility model discloses a sampling device for explosion-proof gas, and relates to the technical field of gas samplers. The device comprises a bottom plate, the top of the bottom plate is fixedly connected with a first shell, the top of the bottom plate is provided with a second shell, the inner sides of the first shell and the second shell are fixedly connected with inner cylinder covers, the bottom of the second shell is fixedly connected with a transmission rod, the bottom of the bottom plate is rotationally connected with a driving screw, and the transmission rod is in threaded connection with the driving screw; a gas storage tank is clamped between the two inner barrel covers, one end of the bottom plate is fixedly connected with a sampling pump, and the output end of the sampling pump is fixedly connected with a gas conveying pipe. The driving screw is rotated to drive the transmission rod to drive the second shell to move close to the first shell, and the two inner barrel covers are matched to wrap and fix the gas storage tank, so that the surface of the gas storage tank is protected, the strength of external force impact on the gas storage tank is reduced, and the service life of the gas storage tank is prolonged. And meanwhile, the two inner barrel covers are used for conveniently wrapping and limiting fragments generated by explosion of the gas storage tank, so that the safety of the device is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of gas samplers, and in particular to a sampling device for explosion-proof gases. Background Art

[0002] In fields such as industrial production, chemical engineering, energy, and environmental protection, gas analysis is a key link to ensure production safety, environmental protection, and product quality control. Among them, the sampling and analysis of explosion-proof gases are particularly important. Explosion-proof gases, such as combustible gases, toxic gases, etc., once their concentration exceeds the safe range, are extremely likely to cause explosion or poisoning accidents, posing a serious threat to personnel safety and equipment safety.

[0003] A gas sampler is a special device for sampling gaseous samples, and it has a wide range of applications in multiple fields, such as environmental monitoring, industrial production, laboratory research, etc. The main function of a gas sampler is to collect gas samples from a specific environment or container for subsequent analysis and testing.

[0004] Traditional gas samplers usually directly use a sampling pump to input the sample into the internal of the gas storage tank for collection. Once the gas storage tank is violently impacted or collided by an external force, its structure is easily damaged, resulting in gas leakage, thus affecting the accuracy of gas sampling and reducing the safety of the device. Utility Model Content

[0005] The purpose of this application is to solve the problem that once the gas storage tank is violently impacted or collided by an external force, its structure is easily damaged, resulting in gas leakage, thus affecting the accuracy of gas sampling and reducing the safety of the device. This application provides a sampling device for explosion-proof gases.

[0006] This application specifically adopts the following technical solutions to achieve the above purpose:

[0007] A sampling device for explosion-proof gases, including a bottom plate, a first outer shell is fixedly connected to the top of the bottom plate, and a second outer shell is installed on the top of the bottom plate. Inner cylinder covers are fixedly connected to the inner sides of both the first outer shell and the second outer shell. A transmission rod is fixedly connected to the bottom of the second outer shell. A driving screw is rotatably connected to the bottom of the bottom plate. The transmission rod is threadedly connected to the driving screw. A gas storage tank is clamped between the two inner cylinder covers. A sampling pump is fixedly connected to one end of the bottom plate. An output pipe of the sampling pump is fixedly connected to an air delivery pipe. The output end of the air delivery pipe is communicated with the input end of the gas storage tank. A guiding component for guiding the second outer shell to move along the length direction of the transmission rod is installed at one end of the bottom plate.

[0008] By adopting the above technical solution, through the coordinated use of the guiding component with the transmission rod and the driving screw, it is convenient to drive the transmission rod to drive the second housing to move closer to the first housing by rotating the driving screw, and cooperate with the two inner cylinder covers to wrap and fix the gas storage tank, thereby forming a protection on the surface of the gas storage tank, reducing the intensity of external force impact on the gas storage tank. At the same time, it is convenient for the two inner cylinder covers to wrap and limit the fragments generated by the explosion of the gas storage tank, effectively improving the safety of the device.

[0009] Further, the guiding component includes guiding slide rods symmetrically and fixedly connected to one end of the second housing, and guiding chutes adapted to the guiding slide rods are symmetrically formed at one end of the bottom plate.

[0010] By adopting the above technical solution, through the coordinated use of the guiding slide rods and the guiding chutes, when rotating the driving screw to drive the second housing to move, it is convenient for the second housing to drive the guiding slide rods to move along the length direction of the guiding chutes, improving the practicability of the device.

[0011] Further, a ventilation opening is formed at one end of the bottom plate, a fan is fixedly connected inside the ventilation opening, a plurality of air guiding grooves are evenly formed inside the inner cylinder cover, and the fan is arranged below the gas storage tank.

[0012] By adopting the above technical solution, through the coordinated use of the fan and the air guiding grooves, it is convenient to use the fan to drive air to continuously pass through the inside of the air guiding grooves, and enable the air to complete heat exchange and cooling with the surface of the gas storage tank, thereby effectively reducing the temperature on the surface of the gas storage tank and improving the explosion-proof effect and safety of the device.

[0013] Further, a filter screen is fixedly connected to the inner top of the ventilation opening, and the gas storage tank is installed above the filter screen.

[0014] By adopting the above technical solution, through the coordinated use of the ventilation opening and the filter screen, it is convenient to filter and intercept the air passing through the inside of the fan, effectively reducing the situation of dust and other foreign matters adhering to the surface of the gas storage tank and improving the practicability of the device.

[0015] Further, a fire prevention groove is formed inside the first housing, and a foam aluminum explosion-proof and flame-retardant layer is filled inside the fire prevention groove, and the foam aluminum explosion-proof and flame-retardant layer is installed between the first housing and the inner cylinder cover.

[0016] By adopting the above technical solution, through the coordinated use of the foam aluminum explosion-proof and flame-retardant layer with the first housing and the second housing, it is convenient to use the bubble-shaped polyhedron structure inside the foam aluminum explosion-proof and flame-retardant layer to form flame retardance for the combustion explosion flame of the gas storage tank, improving the flame-retardant effect of the device.

[0017] Further, a flow meter is fixedly connected to the input port of the gas storage tank, a pneumatic pump is fixedly connected to one end of the gas storage tank, a buzzer alarm is fixedly connected to one side of the first housing, and the buzzer alarm is electrically connected to the flow meter and the pneumatic pump.

[0018] By adopting the above technical solution, through the combined use of the pneumatic pump, the flow meter, and the buzzer alarm, when the flow meter and the pneumatic pump detect abnormal gas flow and pressure data inside the gas storage tank, the buzzer alarm is used to send an alarm prompt sound to the staff, effectively improving the safety of the device.

[0019] Further, a cross-shaped groove is provided at the bottom of the gas storage tank.

[0020] By adopting the above technical solution, through the combined use of the cross-shaped groove and the gas storage tank, it is convenient to weaken the bottom structural strength of the gas storage tank by using the cross-shaped groove, so as to realize the guidance of the energy release direction of the gas storage tank explosion.

[0021] Further, rollers are rotatably connected to the four corners of the bottom of the bottom plate, and a handle is fixedly connected to one end of the bottom plate.

[0022] By adopting the above technical solution, through the combined use of the rollers and the handle, a rolling contact is formed between the bottom plate and the ground, thereby improving the portability of the device.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. By setting the guiding component in combination with the transmission rod and the driving screw, it is convenient to drive the transmission rod to drive the second housing to move closer to the first housing by rotating the driving screw, and cooperate with the two inner cylinder covers to wrap and fix the gas storage tank, thereby forming a protection on the surface of the gas storage tank, reducing the intensity of the external impact on the gas storage tank, and at the same time using the two inner cylinder covers to wrap and limit the fragments generated by the explosion of the gas storage tank, effectively improving the safety of the device.

[0025] 2. By setting the fan in combination with the air guide groove, it is convenient to use the fan to drive the air to continuously pass through the inside of the air guide groove, and make the air exchange heat with the surface of the gas storage tank to cool down, thereby effectively reducing the temperature of the surface of the gas storage tank and improving the explosion-proof effect and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structural diagram of the device main body in the present application.

[0027] Figure 2 is an internal structural diagram of the first housing and the second housing in the present application.

[0028] Figure 3It is a schematic three-dimensional structure diagram of the guiding slide rod and the guiding chute in this application.

[0029] Figure 4 It is a schematic three-dimensional structure diagram of the cross-shaped groove in this application.

[0030] Explanation of reference numerals:

[0031] 1. Base plate; 2. Outer shell one; 3. Outer shell two; 4. Inner cylinder cover; 5. Transmission rod; 6. Driving screw; 7. Gas storage tank; 8. Sampling pump; 9. Gas transmission pipe; 10. Guiding slide rod; 11. Guiding chute; 12. Ventilation opening; 13. Fan; 14. Air guiding groove; 15. Filter screen; 16. Foam aluminum explosion-proof and flame-retardant layer; 17. Flowmeter; 18. Air pressure pump; 19. Buzzer alarm; 20. Cross-shaped groove; 21. Roller; 22. Handle. Detailed implementation manners

[0032] The following further elaborates on this application in conjunction with the attached Figures 1-4 drawings.

[0033] The embodiment of this application discloses a sampling device for explosion-proof gas.

[0034] Referring to Figures 1-3 , a sampling device for explosion-proof gas includes a base plate 1. A outer shell one 2 is fixedly connected to the top of the base plate 1, and a outer shell two 3 is installed on the top of the base plate 1. Inner cylinder covers 4 are fixedly connected to the inner sides of both the outer shell one 2 and the outer shell two 3. A transmission rod 5 is fixedly connected to the bottom of the outer shell two 3. A driving screw 6 is rotatably connected to the bottom of the base plate 1. The transmission rod 5 is threadedly connected to the driving screw 6. A gas storage tank 7 is clamped between the two inner cylinder covers 4. A sampling pump 8 is fixedly connected to one end of the base plate 1. The output end of the sampling pump 8 is fixedly connected to a gas transmission pipe 9. The output end of the gas transmission pipe 9 is communicated with the input end of the gas storage tank 7. A guiding assembly for guiding the outer shell two 3 to move along the length direction of the transmission rod 5 is installed at one end of the base plate 1;

[0035] Among them, the guiding assembly includes guiding slide rods 10 symmetrically and fixedly connected to one end of the outer shell two 3, and guiding chutes 11 adapted to the guiding slide rods 10 are symmetrically opened at one end of the base plate 1;

[0036] Moreover, a fireproof groove is opened inside the outer shell one 2, and a foam aluminum explosion-proof and flame-retardant layer 16 is filled in the fireproof groove. The foam aluminum explosion-proof and flame-retardant layer 16 is installed between the outer shell one 2 and the inner cylinder cover 4.

[0037] During use, first place the traction gas storage tank 7 between the two inner cylinder covers 4. Then rotate the driving screw 6 to form a threaded connection with the transmission rod 5, and make the transmission rod 5 drive the guiding slide rod 10 to insert into the inside of the guiding chute 11. At the same time, make the transmission rod 5 drive the outer shell two 3 to move towards the outer shell one 2 along the length direction of the guiding slide rod 10, and make the gas storage tank 7 be clamped and resisted by the two inner cylinder covers 4. Then connect the traction gas transmission pipe 9 to the input end of the gas storage tank 7, and input the sampled gas into the inside of the gas storage tank 7 for storage through the sampling pump 8. In this way, the gas storage tank 7 is wrapped and protected by the outer shell one 2, the outer shell two 3 and the inner cylinder covers 4, reducing the intensity of the external impact on the gas storage tank 7. At the same time, the two inner cylinder covers 4 are used to wrap and limit the fragments generated by the explosion of the gas storage tank 7, improving the safety of the device. And after the gas storage tank 7 explodes, the bubble-shaped polyhedron structure inside the aluminum foam explosion-proof and flame-retardant layer 16 is used to prevent the spread of flames and heat, further improving the safety of the device.

[0038] Refer to Figure 1 and Figure 2 , one end of the bottom plate 1 is provided with a ventilation opening 12, a fan 13 is fixedly connected inside the ventilation opening 12, and a plurality of air guiding grooves 14 are evenly arranged on the inner side of the inner cylinder cover 4. The fan 13 is arranged below the gas storage tank 7;

[0039] Among them, a filter screen 15 is fixedly connected to the inner top of the ventilation opening 12, and the gas storage tank 7 is installed above the filter screen 15.

[0040] During use, start the fan 13 to input air into the inside of the air guiding groove 14 through the ventilation opening 12, and make the air discharge between the two inner cylinder covers 4 along the guiding direction of the air guiding groove 14 after completing the contact heat exchange and cooling with the surface of the gas storage tank 7. At the same time, when the fan 13 drives the air to pass through the inside of the ventilation opening 12, the dust and other foreign matters in the air are filtered and intercepted by the filter screen 15, effectively reducing the adhesion of dust and other foreign matters on the surface of the gas storage tank 7 and affecting heat dissipation, thereby effectively reducing the surface temperature of the gas storage tank 7 and further improving the explosion-proof effect and safety of the device.

[0041] Refer to Figure 1 and Figure 2 , a flow meter 17 is fixedly connected to the input port of the gas storage tank 7, a pneumatic pump 18 is fixedly connected to one end of the gas storage tank 7, and a buzzer alarm 19 is fixedly connected to one side of the outer shell one 2. The buzzer alarm 19 is electrically connected to the flow meter 17 and the pneumatic pump 18.

[0042] During use, when the gas flow rate and pressure data inside the storage tank 7 detected by the flow meter 17 and the air pressure pump 18 exceed the predetermined values, the flow meter 17 and the air pressure pump 18 send an alarm signal to the buzzer alarm 19, causing the buzzer alarm 19 to generate an alarm prompt sound to remind the staff, thereby guiding the staff to timely adjust the air pressure inside the storage tank 7 through the control of the sampling pump 8 until the air pressure inside the storage tank 7 is normal, further improving the safety of the device.

[0043] Referring to Figure 1 and Figure 2 a cross-shaped groove 20 is provided at the bottom of the storage tank 7.

[0044] During use, by setting the cross-shaped groove 20, the structural strength of the bottom of the storage tank 7 is weakened. When the internal pressure of the storage tank 7 changes, the cross-shaped groove 20 at the bottom of the storage tank 7 ruptures first, enabling the gas to be discharged from the inside of the storage tank 7 through the cross-shaped groove 20 under the action of pressure, thereby guiding the energy release direction of the explosion of the storage tank 7.

[0045] Referring to Figure 1 and Figure 2 rollers 21 are rotatably connected to the four corners of the bottom of the bottom plate 1, and a handle 22 is fixedly connected to one end of the bottom plate 1.

[0046] During use, by pulling the handle 22, the bottom plate 1 is driven to drive the rollers 21 to form rolling contact with the ground, thereby driving the bottom plate 1 to move along the ground, effectively improving the portability of the device.

[0047] The implementation principle of the sampling device for explosion-proof gas in this embodiment is as follows: First, the storage tank 7 is placed between the two inner cylinder covers 4 by traction. Then, the driving screw 6 is rotated to form a threaded connection with the transmission rod 5, and the transmission rod 5 drives the guiding slide rod 10 to insert into the guiding chute 11. At the same time, the transmission rod 5 drives the outer shell two 3 to move towards the outer shell one 2 along the length direction of the guiding slide rod 10, and the storage tank 7 is clamped and abutted by the two inner cylinder covers 4. Then, the air inlet pipe 9 is connected to the input end of the storage tank 7 by traction, and the sampling gas is input into the storage tank 7 for storage through the sampling pump 8;

[0048] At the same time, by starting the fan 13, air is input into the air guiding groove 14 through the ventilation port 12, and after the air completes contact heat exchange and cooling with the surface of the storage tank 7, it is discharged between the two inner cylinder covers 4 along the guiding direction of the air guiding groove 14. At the same time, when the fan 13 drives the air to pass through the ventilation port 12, dust and other foreign matters in the air are filtered and intercepted by the filter net 15, effectively reducing the adhesion of dust and other foreign matters on the surface of the storage tank 7 and affecting heat dissipation;

[0049] Then, after an explosion occurs in the gas storage tank 7, the bubble-shaped polyhedron structure inside the foam aluminum explosion-proof and flame-retardant layer 16 is used to prevent the spread of flames and heat. At the same time, by setting the cross grooves 20, the structural strength of the bottom of the gas storage tank 7 is weakened. When the internal pressure of the gas storage tank 7 changes, the cross grooves 20 at the bottom of the gas storage tank 7 rupture first, so that the gas is discharged from the inside of the gas storage tank 7 through the cross grooves 20 under the action of pressure, thereby realizing the guidance of the explosion energy release direction of the gas storage tank 7.

Claims

1. An explosion-proof gas sampling device, comprising a bottom plate (1), characterized in that: The top of the base plate (1) is fixedly connected to the outer shell 1 (2), and the top of the base plate (1) is installed with the outer shell 2 (3). The inner sides of the outer shell 1 (2) and the outer shell 2 (3) are both fixedly connected to the inner cylinder cover (4). The bottom of the outer shell 2 (3) is fixedly connected to the transmission rod (5). The bottom of the base plate (1) is rotatably connected to the driving screw (6). The transmission rod (5) is threadedly connected to the driving screw (6). An air storage tank (7) is sandwiched between the two inner cylinder covers (4). One end of the base plate (1) is fixedly connected to a sampling pump (8). The output end of the sampling pump (8) is fixedly connected to an air supply pipe (9). The output end of the air supply pipe (9) is connected to the input end of the air storage tank (7). One end of the base plate (1) is installed with a guide component for guiding the outer shell 2 (3) to move along the length direction of the transmission rod (5).

2. The explosion-proof gas sampling device according to claim 1, characterized in that: The guide assembly comprises a guide slide rod (10) symmetrically fixedly connected to one end of the second housing (3); one end of the bottom plate (1) is symmetrically provided with a guide slide groove (11) adapted to the guide slide rod (10).

3. The explosion-proof gas sampling device according to claim 1, characterized in that: A vent (12) is provided at one end of the bottom plate (1), a fan (13) is fixedly connected inside the vent (12), a plurality of air guide grooves (14) are evenly provided on the inner side of the inner cylinder cover (4), and the fan (13) is provided below the gas storage tank (7).

4. The explosion-proof gas sampling device according to claim 3, characterized in that: A filter screen (15) is fixedly connected to the inner top of the vent (12), and the gas storage tank (7) is installed above the filter screen (15).

5. The explosion-proof gas sampling device according to claim 1, characterized in that: The outer shell one (2) is provided with a fireproof groove inside, and the fireproof groove is filled with a foamed aluminum explosion-proof and flame-retardant layer (16). The foamed aluminum explosion-proof and flame-retardant layer (16) is installed between the outer shell one (2) and the inner tube cover (4).

6. The explosion-proof gas sampling device according to claim 1, characterized in that: The input port of the gas storage tank (7) is fixedly connected to a flow meter (17), one end of the gas storage tank (7) is fixedly connected to an air pressure pump (18), and one side of the housing (2) is fixedly connected to a buzzer alarm (19), and the buzzer alarm (19) is electrically connected to the flow meter (17) and the air pressure pump (18).

7. The explosion-proof gas sampling device according to claim 1, characterized in that: The bottom of the gas storage tank (7) is provided with a cross-shaped groove (20).

8. The explosion-proof gas sampling device according to claim 1, characterized in that: The four corners of the bottom of the bottom plate (1) are rotatably connected to rollers (21), and one end of the bottom plate (1) is fixedly connected to a handle (22).

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