Gas generating device

Abstract

The utility model belongs to the field of chemical engineering, and provides a gas generation device which comprises a dynamic gas distribution device, a glass tube; a clamping piece; the clamping piece comprises a supporting and clamping part, an end cover part and a cavity; the cavity is connected with the end cover part and the supporting and clamping part; the supporting and clamping part is positioned below the middle part of the glass tube and is used for fixing a dynamic gas distribution device; the end cover part is arranged above a port of the glass tube, and an openable upper cover is arranged at the top of the end cover part and is used for taking and placing the dynamic gas distribution device; an air inlet and an air outlet are formed in the two sides of the end cover part. The clamping piece has the advantage that the dynamic gas distribution device can be conveniently taken out and put in, and the problem that the steps of taking the dynamic gas distribution device in a gas mixing chamber in a traditional mode are tedious is solved.

Description

Technical Field

[0001] This application relates to the chemical industry field, particularly to a gas generating device. Background Art

[0002] Currently, in order to provide a stable, pure, and continuous gas supply to ensure the quality and performance of the final product, gas generating devices are often used in experiments.

[0003] However, in the traditional gas generating device, a dynamic gas distribution device such as a permeation tube or a diffusion tube is placed at the bottom of a glass tube, and the air inlet or outlet is fixed at the top of the bottle cap. As a result, during the experiment, to take out the dynamic gas distribution device, the bottle cap needs to be opened, and the dynamic gas distribution device at the bottom can only be poured out by tilting the glass tube. In addition, since both the air inlet and outlet are at the top of the bottle cap, the inlet pipe and outlet pipe connected to the air inlet and outlet need to be taken out together when opening the bottle cap.

[0004] The above process of taking out the permeation tube or diffusion tube is cumbersome, and it is easy to damage the permeation tube or diffusion tube during the process of pouring out the permeation tube or diffusion tube, increasing the complexity of the experiment and potential safety risks. Summary of the Invention

[0005] An embodiment of this application provides a gas generating device to facilitate taking out the dynamic gas distribution device.

[0006] A gas generating device according to this application includes: a dynamic gas distribution device; a glass tube; a clamping member; the clamping member includes a supporting clip part, an end cover part, and a cavity; the cavity connects the end cover part and the supporting clip part; the dynamic gas distribution device is located in the cavity; the supporting clip part is located below the middle of the glass tube and is used to fix the dynamic gas distribution device; the end cover part is arranged above the port of the glass tube, and the top of the end cover part has an openable upper cover for taking in and out the dynamic gas distribution device; air inlet holes and air outlet holes are arranged on both sides of the end cover part.

[0007] In one embodiment, the air inlet hole extends horizontally from the side of the end cover part but does not completely penetrate; the air outlet hole is located on the opposite side of the air inlet hole and extends horizontally from the side of the end cover part into the cavity.

[0008] In one embodiment, the gas generating device further includes: a fluororubber ring, which is located between the end cover part and the port of the glass tube and is used to seal the gap between the end cover part and the glass tube.

[0009] In one embodiment, the upper cover includes: a screw cap located at the top of the end cover portion; the screw cap has a first female thread; a gasket located between the screw cap and the end cover portion for sealing the interface between the screw cap and the end cover portion. The end cover portion includes: a first male thread; the first male thread is provided around the top opening of the end cover portion for mating with the first female thread of the screw cap.

[0010] In one embodiment, the gas generating device further includes: an air guide pipe vertically connected downward to the air inlet hole, and the air guide pipe extends from the air inlet hole to the bottom of the support clip portion.

[0011] In one embodiment, the cavity includes ventilation holes uniformly distributed around the cavity.

[0012] In one embodiment, the gas generating device further includes: a through hole drilled vertically downward from the side of the end cover portion and sealed with epoxy glue; a temperature probe fixed on one side of the bottom of the support clip portion; a temperature probe lead passing through the through hole to connect the temperature probe.

[0013] In one embodiment, the gas generating device further includes; a sleeve; the sleeve is used to fix the glass tube, and the sleeve wraps the glass tube; the edge of the sleeve extends to the side of the end cover portion, and the side of the end cover portion includes a second male thread, and the edge of the sleeve has a second female thread for mating with the second male thread.

[0014] In one embodiment, the dynamic gas distribution device is a permeation tube or a diffusion tube.

[0015] In one embodiment, the gas generating device further includes: a fastener having an internal thread, and the side of the end cover portion has an external thread for mating and connecting with the internal thread; the opening of the glass tube has a flanging structure that abuts against the external thread of the fastener.

[0016] The technical solution provided by the embodiment of the present application fixes the dynamic gas distribution device in the middle of the glass through the clamping member, and the air inlet hole and the air outlet hole are on the side of the end cover portion of the clamping member. By opening the upper cover at the top of the end cover portion of the clamping member, the dynamic gas distribution device can be picked up with tweezers, solving the problems of the cumbersome steps of taking the dynamic gas distribution device in the mixing chamber in the traditional mode, and the possible damage to the dynamic gas distribution device, resulting in potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application.

[0018] Figure 1 It is a front view sectional view of the gas generating device without heating mode provided by an embodiment of the present application;

[0019] Figure 2 A side view sectional view of a gas generation device without a heating mode provided in an embodiment of the present application;

[0020] Figure 3 A front view sectional view of a gas generation device in a heating mode provided in an embodiment of the present application;

[0021] Figure 4 A side view sectional view of a gas generation device in a heating mode provided in an embodiment of the present application.

[0022] Among them, the above-mentioned drawings include the following markings:

[0023] 1 - Dynamic gas distribution device;

[0024] 2 - Glass tube;

[0025] 3 - Clamping member, 4 - Supporting clip portion, 5 - Cavity, 6 - End cover portion, 7 - Upper cover, 8 - Air inlet hole, 9 - Air outlet hole;

[0026] 10 - Fluororubber ring;

[0027] 11 - Screw cap, 12 - Sealing gasket, 13 - First female thread, 14 - First male thread;

[0028] 15 - Air guiding pipe;

[0029] 16 - Ventilation hole;

[0030] 17 - Through hole, 18 - Temperature probe, 19 - Temperature probe lead;

[0031] 20 - Sleeve, 21 - Second male thread, 22 - Second female thread;

[0032] 23 - Fastener, 24 - External thread, 25 - Internal thread, 26 - Flanging structure. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present application will be described with reference to the drawings in the embodiments of the present application.

[0034] Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] Figure 1 A front view sectional view of a gas generation device without a heating mode provided in an embodiment of the present application, as Figure 1As shown in the figure, the present application provides a gas generating device. The gas generating device includes: a dynamic gas distribution device 1, a glass tube 2, and a clamping member 3; the clamping member 3 includes a supporting clip portion 4, an end cover portion 6, and a cavity 5. In one embodiment, the dynamic gas distribution device 1 is a permeation tube or a diffusion tube.

[0036] The clamping member 3 is made of PTFE (polytetrafluoroethylene), and PTFE is not eroded by any chemical substances, including strong acids, strong bases, and various chemical solvents, and has strong corrosion resistance. The supporting clip portion 4 is located below the middle of the glass tube 2 and is used to fix the dynamic gas distribution device 1. Since the position of the dynamic gas distribution device 1 is fixed, it can ensure that the gas flow is more uniform, so that the target gas obtained after mixing has better consistency. A chemical substance that can generate volatile gas is placed in the dynamic gas distribution device 1. The cavity 5 connects the supporting clip portion 4 and the end cover portion 6. The dynamic gas distribution device 1 is located in the cavity 5. The end cover portion 6 is arranged above the port of the glass tube 2. The top of the end cover portion 6 has an openable upper cover 7. After opening the upper cover 7, the dynamic gas distribution device 1 can be taken or placed into the supporting clip portion 4 with tweezers; air inlets 8 and air outlets 9 are arranged on both sides of the end cover portion 6. The filtered air enters from the air inlet 8, and the volatile gas generated in the dynamic gas distribution device 1 is mixed with the filtered air and then discharged from the air outlet 9.

[0037] In one embodiment, the air inlet 8 extends horizontally from the side of the end cover portion 6 but does not penetrate completely; the air outlet 9 is arranged opposite to the air inlet 8, and the angle between the two is 180 degrees, forming a flat angle, ensuring the smooth flow of gas, avoiding the accumulation of gas inside the gas mixing device, and thus improving the operation efficiency and stability of the equipment.

[0038] In one embodiment, the air outlet 9 extends horizontally from the side of the end cover portion 6 into the cavity 5, facilitating the discharge of the volatile gas generated in the dynamic gas distribution device 1 mixed with air in the cavity 5 from the air outlet 9; the horizontal height of the air outlet 9 is slightly higher than that of the air inlet 8, forming an effective gas circulation system.

[0039] In one embodiment, the gas generating device further includes: a fluororubber ring 10. The fluororubber ring 10 is located between the end cover portion 6 and the port of the glass tube 2 and is used to seal the gap between the two, which not only helps prevent external harmful substances from entering the internal system but also avoids internal gas leakage, thus ensuring the safe and efficient operation of the entire device; at the same time, the fluororubber ring 10 has excellent chemical stability and corrosion resistance, and can effectively prevent the volatile gas generated by the dynamic gas distribution device 1 from eroding the gap between the end cover portion 6 and the glass tube 2 and the fluororubber ring 10, thus ensuring the normal operation of the equipment and extending its service life.

[0040] In one embodiment, the upper cover 7 includes a screw cap 11 and a gasket 12; the screw cap 11 is located at the top of the end cover portion 6, and the inner side of the screw cap 11 has a first female thread 13; the end cover portion 6 includes a first male thread 14, and the first male thread 14 is provided around the top opening of the end cover portion 6, above the air inlet hole 8 and the air outlet hole 9, and is used to cooperate with the first female thread 13 of the screw cap 11. The gasket 12 is closely attached to the bottom of the screw cap 11 and is located between the screw cap 11 and the end cover portion 6, and is used to seal the interface between the screw cap 11 and the end cover portion 6. During operation, unscrew the screw cap 11, clamp the top of the dynamic gas distribution device 1 with tweezers, then place the dynamic gas distribution device 1 into the clamping portion 4, and then tighten the screw cap 11. The functions of the screw cap 11 and the gasket 12 are to generate a certain contact pressure through the elastic deformation of the gasket 12, thereby effectively preventing gas leakage and ensuring that the volatile gas generated by the dynamic gas distribution device 1 cannot overflow between the screw cap 11 and the end cover portion 6.

[0041] In one embodiment, the gas generating device further includes: an air guide pipe 15, and the air guide pipe 15 is connected to the air inlet hole 8 vertically downward, and the air guide pipe 15 extends from the air inlet hole 8 to the bottom of the clamping portion 4. Through the air guide pipe 15 that penetrates into the bottom of the clamping portion 4, the gravity effect is effectively utilized to enable the filtered air to naturally flow into the bottle through the air inlet hole 8, making the air distribution in the glass tube 2 more uniform, allowing the air to better mix with the volatile gas generated in the dynamic gas distribution device 1, and improving the mixing efficiency and reaction stability.

[0042] In one embodiment, the cavity 5 includes ventilation holes 16, and the ventilation holes 16 are uniformly distributed around the cavity 5. The highly filtered air diffuses into the glass tube 2 from the air inlet hole 8 along the air guide pipe 15 towards the bottom of the clamping portion 4 and is uniformly distributed in the glass tube 2. When passing through the ventilation holes 16, it enters the interior of the cavity 5 through the ventilation holes 16. The filtered air meets and fully mixes with the volatile gas generated by the dynamic gas distribution device 1 in the cavity 5, and the mixed gas is discharged from the air outlet hole 9.

[0043] Figure 2 The side view sectional view of the gas generating device without a heating mode provided by an embodiment of the present application, as Figure 2As shown, in one embodiment, the gas generating device further includes: a through hole 17, a temperature probe 18, and a temperature probe lead 19. The plane where the through hole 17 is located is perpendicular to the plane where the connecting line of the air inlet hole 8 and the air outlet hole 9 is located, below the first male thread 14, and penetrates straight down from the side of the end cap portion 6. The through hole 17 is sealed with epoxy glue to prevent the gas in the device from leaking out through the through hole 17; the temperature probe lead 19 passes through the through hole 17 to connect the temperature probe 18, and the temperature probe 18 is fixed to one side of the bottom of the support clip portion 4 with epoxy glue, close to the dynamic gas distribution device 1, so as to monitor and control the gas temperature in real time, thereby significantly improving the overall accuracy of the gas generating device.

[0044] In one embodiment, the gas generating device further includes; a sleeve 20, and the sleeve 20 is made of PTFE material and wraps the glass tube 2. When connecting or fixing the glass tube 2, the sleeve 20 plays an effective fixing effect on the glass tube 2 by absorbing and dispersing force, reducing stress concentration, and providing physical protection, etc., not only ensuring the stability of the glass tube 2, but also extending its service life. The side of the end cap portion 6 includes a second male thread 21, and the second male thread 21 is located below the air inlet hole 8, the air outlet hole 9, and the through hole 17. The edge of the sleeve 20 extends to the second male thread 21 on the side of the end cap portion 6 and has a second female thread 22 that mates with the second male thread 21. The fluororubber ring 10 is located between the second male thread 21 and the port of the glass tube 2, and the gap between the glass tube 2 and the clamping member 3 is sealed through the cooperation of the fluororubber ring 10, the second male thread 21, and the second female thread 22 to prevent air from leaking from the gap.

[0045] Figure 3 The front view sectional view of the gas generating device with a heating mode provided by an embodiment of the present application is different from the above embodiment in that the glass tube of the gas generating device with a heating mode is not wrapped with a sleeve, as Figure 3 shown. The gas generating device with a heating mode further includes: a fastener 23, the fastener 23 has an internal thread 25, and the side of the end cap portion 6 has an external thread 24. The external thread 24 is located below the air inlet hole 8, the air outlet hole 9, and the through hole 17 and is used for mating connection with the internal thread 25. The opening of the glass tube 2 has a flanging structure 26, and the flanging structure 26 abuts against the external thread 24 of the fastener 23, and the external thread 24 tightens the flanging structure 26 to closely cooperate with the internal thread 25. The fluororubber ring 10 is located between the external thread 24 and the port of the glass tube 2. The gap between the glass tube 2 and the clamping member 3 is sealed through the cooperation of the fluororubber ring 10, the second male thread 21, and the second female thread 22 to prevent air from leaking from the gap.

[0046] Figure 4 The side view sectional view of the gas generating device with a heating mode provided by an embodiment of the present application is as Figure 3 and Figure 4As shown, in the heating mode, the temperature probe 18 is fixed to one side of the bottom of the clamping part 4 with epoxy glue. Then, the lead wire 19 of the temperature probe is passed through the through hole 17 and sealed with epoxy glue. The clamping part 3 with the air inlet hole 8, the air guide pipe 15 and the air outlet hole 9 is placed into the glass tube 2 with the flanging structure 26. The flanging structure 26 of the glass tube 2 is screwed and matched with the internal thread 25 by pulling with the external thread 24. The dynamic gas distribution device 1 is placed into the clamping part 4 by opening the screw cap 11, and then the screw cap 11 is tightened. The filtered air is sent into the air inlet hole 8, and the exposed part of the glass tube 2 is inserted into the heating device. After the experiment, only need to unscrew the screw cap 11, and use tweezers to clamp the top of the dynamic gas distribution device 1 to take out the dynamic gas distribution device 1 from the clamping part 3. Since the outer side of the glass tube 2 of the gas generating device in the heating mode does not include the sleeve 20, the sealing requirement between the glass tube 2 and the end cover part 6 is higher. In this application, a flanging structure 26 is arranged at the opening of the glass tube 2, and a fastener 23 is added on the outer side. The flanging structure abuts against the fastener 23, and the external thread 24 of the end cover part 6 is matched with the internal thread 25 of the fastener 23, so that the sealing performance between the glass tube 2 and the end cover part 6 is better.

[0047] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas generating device, characterized in that, Comprising: Dynamic gas distribution device; Glass tube; Clamping member; the clamping member includes a supporting clip portion, an end cover portion and a cavity; the cavity connects the end cover portion and the supporting clip portion, and the dynamic gas distribution device is located in the cavity; The supporting clip portion is located at a position below the middle of the glass tube and is used to fix the dynamic gas distribution device; The end cover portion is arranged above the port of the glass tube, and the top of the end cover portion has an openable upper cover for taking and placing the dynamic gas distribution device; air inlets and air outlets are arranged on both sides of the end cover portion.

2. The gas generating device according to claim 1, characterized in that, The air inlet extends horizontally from the side of the end cover portion but does not penetrate completely; The air outlet is located on the side opposite to the air inlet and extends horizontally from the side of the end cover portion into the cavity.

3. A gas generating device according to claim 1, characterized in that, Also comprising: Fluororubber ring, the fluororubber ring is located between the end cover portion and the port of the glass tube and is used to seal the gap between the end cover portion and the glass tube.

4. A gas generating device according to claim 1, characterized in that, The upper cover includes: a screw cap located at the top of the end cover portion; the screw cap has a first female thread; Sealing gasket, the sealing gasket is located between the screw cap and the end cover portion and is used to seal the interface between the screw cap and the end cover portion; The end cover portion includes: a first male thread; the first male thread is arranged around the top opening of the end cover portion and is used to cooperate with the first female thread of the screw cap.

5. A gas generating device according to claim 1, characterized in that, Also comprising: Gas lead-in pipe, the gas lead-in pipe is vertically downwardly connected to the air inlet and extends from the air inlet to the bottom of the supporting clip portion.

6. The gas generating device according to claim 1, characterized in that, The cavity includes ventilation holes, and the ventilation holes are evenly distributed around the cavity.

7. A gas generating device according to claim 1, characterized in that, Also comprising: Epoxy glue; Through hole, the through hole is vertically downwardly drilled through from the side of the end cover portion, and the through hole is sealed with the epoxy glue; Temperature probe, the temperature probe is fixed on one side of the bottom of the supporting clip portion; Temperature probe lead wire, the temperature probe lead wire passes through the through hole to connect the temperature probe.

8. A gas generating device according to claim 1, characterized in that, Also comprising; Sleeve; the sleeve is used to fix the glass tube, and the sleeve wraps the glass tube; The edge of the sleeve extends to the side of the end cover portion, the side of the end cover portion includes a second male thread, and the edge of the sleeve has a second female thread that cooperates with the second male thread.

9. A gas generating device according to claim 1, characterized in that, The dynamic gas distribution device is a permeation tube or a diffusion tube.

10. A gas generating device according to claim 1, characterized in that, The gas generation device further includes: a fastener, the fastener has an internal thread, and the side of the end cover portion has an external thread, and the external thread is used to cooperate and connect with the internal thread; The opening of the glass tube has a flanging structure, and the flanging structure abuts against the external thread of the fastener.

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