Gas mixing device

Abstract

The utility model belongs to the field of chemical engineering, and provides a gas mixing device which comprises a gas mixing cavity structure, a gas mixing cavity structure and a gas mixing cavity structure, the gas mixing cavity structure comprises a gas mixing cavity body, and an opening is formed in the lower end of the gas mixing cavity body and provided with a first thread extending downwards; the diffusion cavity structure comprises a bottom pipe, and the bottom pipe is provided with a second thread; the bottom pipe and the opening are matched and connected through the second thread and the first thread; and the bottom pipe is used for storing volatile chemical substances. The bottom pipe can be independently taken down to place chemical substances, the problem that chemical substances can be added to the bottom of a glass bottle only by unscrewing a bottle cap and taking out a gas inlet pipe and a gas outlet pipe of a traditional gas mixing device is solved, and the operation process is simplified.

Description

Technical Field

[0001] The present application relates to the field of chemical industry, and in particular to a gas mixing device. Background Art

[0002] Currently, gas mixing devices are often used in experiments to mix two or more gases in proportion to obtain the desired mixed gas.

[0003] However, in traditional gas mixing devices, the inlet and outlet pipes enter the glass tube through the top cover, and the lower end of the inlet pipe is located at the bottom of the glass tube. During the experiment, the inlet and outlet pipes must be removed first, and then the top cover of the glass tube must be unscrewed before adding or removing chemicals from the bottom of the glass tube. If the top cover is unscrewed directly, the inlet and outlet pipes will be damaged.

[0004] Each time the upper cover of the above-mentioned gas mixing device is opened, the air inlet pipe and the air outlet pipe need to be removed first, which makes the experimental operation process cumbersome. In the process of removing the air inlet pipe and the air outlet pipe, the air inlet pipe and the air outlet pipe may be damaged, affecting the safety of the experiment. Summary of the Invention

[0005] An embodiment of the present application provides a gas mixing device, including: a gas mixing chamber structure, the gas mixing chamber structure includes a gas mixing chamber body, the lower end of the gas mixing chamber body has an opening, the opening has a first thread extending downward; a diffusion chamber structure, the diffusion chamber structure includes a bottom tube, the bottom tube has a second thread; the bottom tube is connected to the opening through the second thread and the first thread; the bottom tube is used to store volatile chemicals.

[0006] In one embodiment, the gas mixing chamber structure further includes a threaded hole member having a third thread; the opening has a fourth thread extending upward, and the opening and the threaded hole member are connected through the fourth thread and the third thread.

[0007] In one embodiment, the diffusion chamber structure further includes a permeation aperture tube, which is plug-in connected to the threaded hole piece, one end of the permeation aperture tube is connected to the gas mixing chamber body, and the other end is connected to the bottom tube.

[0008] In one embodiment, the pore size and length of the permeate aperture tube are matched to the concentration of the gas produced by the bottom tube.

[0009] In one embodiment, the gas mixing chamber structure further includes a second sealing ring, which is disposed between the permeable aperture tube and the threaded hole member.

[0010] In one embodiment, the mixing chamber structure further includes: an upper cover of the mixing chamber; a side surface of the upper cover of the mixing chamber has a fifth thread, an upper end of the main body of the mixing chamber has a sixth thread, and the fifth thread and the sixth thread are spirally connected; an air inlet pipe, the air inlet pipe passes through the upper cover of the mixing chamber and extends to the bottom of the main body of the mixing chamber; an air outlet pipe, the air outlet pipe passes through the upper cover of the mixing chamber.

[0011] In one embodiment, the top of the mixing chamber cover has a first threaded hole and a second threaded hole; the air inlet pipe passes through the first threaded hole, and the air inlet pipe is at least partially spirally connected to the first threaded hole; the air outlet pipe passes through the second threaded hole, and the air outlet pipe is at least partially spirally connected to the second threaded hole.

[0012] In one embodiment, the gas mixing chamber structure further includes a first sealing ring, which is disposed between the gas mixing chamber upper cover and the gas mixing chamber body.

[0013] In one embodiment, the gas mixing chamber structure further includes a third sealing ring, which is disposed between the bottom tube and the gas mixing chamber body.

[0014] In one embodiment, a temperature-controlled metal piece is further included. The temperature-controlled metal piece surrounds the bottom tube and is used for heating. By adjusting the heating temperature, the concentration of the volatile gas is adjusted.

[0015] The technical solution provided in the embodiment of the present application forms a gas mixing device by threading the gas mixing chamber main body in the gas mixing chamber structure and the bottom tube in the diffusion chamber structure. The bottom tube can be removed separately to store volatile chemicals, which solves the problem of needing to remove the air inlet and outlet pipes, unscrew the upper cover, and then put in the chemicals in the traditional gas mixing device, thereby simplifying the experimental process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application.

[0017] Figure 1 A schematic structural diagram of a gas mixing device provided in one embodiment of the present application;

[0018] Figure 2 This is a partially enlarged schematic diagram of the structure of the gas mixing device provided in one embodiment of the present application.

[0019] The above drawings include the following markings:

[0020] 1-gas mixing chamber structure, 2-gas mixing chamber body;

[0021] 3-opening, 4-first thread, 10-fourth thread;

[0022] 5-diffusion chamber structure, 6-bottom tube, 7-second thread, 23-third sealing ring;

[0023] 8-threaded hole, 9-third thread, 11-first boss, 24-limiting groove;

[0024] 12-permeation aperture tube, 13-second boss, 14-second sealing ring;

[0025] 15-mixing chamber cover, 16-fifth thread, 17-sixth thread, 22-first sealing ring;

[0026] 18-inlet pipe; 19-outlet pipe; 20-first threaded hole, 21-second threaded hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0028] 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 or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0029] Figure 1 A schematic diagram of the structure of the gas mixing device provided in the embodiment of the present application is shown in FIG. Figure 1 As shown, one embodiment of the present application provides a gas mixing device, comprising: a gas mixing chamber structure 1 and a diffusion chamber structure 5. The gas mixing chamber structure 1 includes a gas mixing chamber body 2, the lower end of which has an opening 3, and the opening 3 has a first thread 4 extending downward. The diffusion chamber structure 5 includes a bottom tube 6, which has a second thread 7. The bottom tube 6 is connected to the opening 3 via the second thread 7 and the first thread 4. The bottom tube 6 is used to store volatile chemicals. During the experiment, the volatile chemical can be placed in the bottom tube 6 by simply unscrewing and removing the bottom tube 6. The volatile chemical can be either liquid or solid.

[0030] The technical solution provided by the above-mentioned embodiments of the present application combines the mixing chamber structure 1 and the diffusion chamber structure 5 into a mixing device, so that the experimenter only needs to separate the diffusion chamber structure 5 from the mixing chamber body 2 to replace the chemical substances in the mixing device in the diffusion chamber structure 5. Unlike the traditional mixing device, there is no need to open the upper cover and remove the air inlet pipe and the air outlet pipe before taking the chemical substances into and out of the glass tube, thereby achieving the effect of simplifying the operation steps. In addition, since the diffusion chamber structure 5 is separated separately, the diameter of the diffusion chamber structure 5 is smaller than that of the traditional mixing device, thereby reducing the volume of the entire mixing device.

[0031] In one embodiment, the mixing chamber structure 1 further includes a threaded hole member 8, which has a third thread 9 and a first boss 11, and the first boss 11 is located on the outside of the upper end of the threaded hole member 8 shown in the figure; the opening 3 has a fourth thread 10 extending upward, and the first boss 11 interferes with the top of the fourth thread 10, so that the threaded hole member 8 and the fourth thread 10 can fit tightly together, and the opening 3 and the threaded hole member 8 are connected through the fourth thread 10 and the third thread 9.

[0032] In one embodiment, the threaded hole member 8 also includes a limiting groove 24, which is located on the inner side of the upper end of the threaded hole member 8; the diffusion chamber structure 5 also includes a permeation aperture tube 12, which has a second boss 13, and the second boss 13 is located on the outer side of the upper end of the permeation aperture tube 12 shown in the figure. The permeation aperture tube 12 and the threaded hole member 8 are connected in a plug-in manner through the limiting groove 24 and the second boss 13. One end of the permeation aperture tube 12 extends to the interior of the mixing chamber body 2, and the other end extends to the interior of the bottom tube 6, connecting the mixing chamber body 2 and the bottom tube 6, so that the volatile gas generated by the chemical substances in the bottom tube 6 can be diffused into the mixing chamber body 2 through the permeation aperture tube 12.

[0033] In one embodiment, the pore size and length of the permeation aperture tube 12 are matched to the concentration of the gas generated by the base tube 6, thereby controlling the gas diffusion rate and ensuring that the gas can be fully diffused and evenly distributed in the gas mixing chamber body 2. For gases with higher concentrations, a permeation aperture tube 12 with a larger pore size and shorter length can be selected, while for gases with lower concentrations, a permeation aperture tube 12 with a smaller pore size and longer length can be selected. Experimenters can also choose permeation aperture tubes 12 of different pore sizes and lengths based on the specific desired effect.

[0034] In one embodiment, the gas mixing chamber structure 1 further includes a second sealing ring 14, which is disposed between the permeation aperture tube 12 and the threaded hole member 8 to ensure that the gas enters the gas mixing chamber body 2 from the permeation aperture tube 12 rather than from the gap between the permeation aperture tube 12 and the threaded hole member 8, thereby controlling the gas diffusion rate.

[0035] In one embodiment, the mixing chamber structure 1 further includes: a mixing chamber upper cover 15, the side of the mixing chamber upper cover 15 has a fifth thread 16, the upper end of the mixing chamber body 2 has a sixth thread 17, and the fifth thread 16 and the sixth thread 17 are spirally connected; the top of the mixing chamber upper cover 15 has an air inlet pipe 18 and an air outlet pipe 19, the air inlet pipe 18 passes through the mixing chamber upper cover 15 and extends to the bottom of the mixing chamber body 2, and the air outlet pipe 19 passes through the mixing chamber upper cover 15.

[0036] Specifically, after removing the air inlet pipe 18 and the air outlet pipe 19 and unscrewing the upper cover 15 of the mixing chamber, the permeation aperture tube 12 of different aperture sizes and lengths can be replaced as needed. Since the permeation aperture tube 12 does not need to be replaced frequently, it is also possible to consider always using one type of permeation aperture tube 12, so it will not increase the difficulty of operation.

[0037] Specifically, the filtered gas enters the bottom of the mixing chamber body 2 from the air inlet pipe 18, and is evenly distributed in the mixing chamber body 2 at the bottom; the volatile gas generated by the chemical substances in the bottom pipe 6 diffuses into the mixing chamber body 2 through the permeable aperture tube 12, and is evenly distributed in the mixing chamber body 2. The volatile gas in the mixing chamber body 2 is fully mixed with the filtered gas and then discharged from the air outlet pipe 19.

[0038] In one embodiment, the top of the mixing chamber cover 15 has a first threaded hole 20 and a second threaded hole 21. The inlet pipe 18 passes through the first threaded hole 20 and is at least partially screwed to the first threaded hole 20. The outlet pipe 19 passes through the second threaded hole 21 and is at least partially screwed to the second threaded hole 21. The screwed connections between the inlet pipe 18 and the outlet pipe 19 and the mixing chamber cover 15 allow for the replacement of worn or damaged inlet pipes 18 and 19, ensuring the accuracy of experimental results.

[0039] Figure 2 This is a partially enlarged schematic diagram of the structure of the gas mixing device provided in one embodiment of the present application, as shown in FIG. Figure 2 As shown, in one embodiment, the mixing chamber structure 1 further includes a first sealing ring 22, which is disposed between the mixing chamber upper cover 15 and the mixing chamber main body 2 to prevent the gas in the mixing chamber main body 2 from leaking out from the spirally fitted gap between the mixing chamber upper cover 15 and the mixing chamber main body 2.

[0040] In one embodiment, the mixing chamber structure 1 further includes a third sealing ring 23 , which is disposed between the bottom tube 6 and the mixing chamber body 2 to prevent volatile gases generated by the chemical substances in the bottom tube 6 from leaking from the spirally fitted gap between the bottom tube 6 and the mixing chamber body 2 .

[0041] In one embodiment, the gas mixing device further includes a temperature-controlled metal piece, which surrounds the bottom tube 6 and heats the bottom tube 6. The concentration of the volatile gas is adjusted by adjusting the heating temperature, thereby adjusting the concentration of the gas discharged from the outlet pipe 19.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application and are not used to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. The above embodiments are only used to illustrate the technical solutions of the present application and are not used to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A gas mixing device, characterized in that: include: A gas mixing chamber structure, the gas mixing chamber structure comprising a gas mixing chamber body, the lower end of the gas mixing chamber body having an opening, and the opening having a first thread extending downward; a diffusion chamber structure, the diffusion chamber structure comprising a bottom tube, the bottom tube having a second thread; The bottom tube is connected to the opening through the cooperation of the second thread and the first thread; the bottom tube is used for storing volatile chemicals.

2. The gas mixing device according to claim 1, characterized in that The gas mixing chamber structure further includes a threaded hole member, wherein the threaded hole member has a third thread; The opening has a fourth thread extending upward, and the opening is connected to the threaded hole member through the fourth thread and the third thread.

3. The gas mixing device according to claim 2, characterized in that: The diffusion chamber structure further comprises a permeation aperture tube, which is plug-in connected to the threaded hole member. One end of the permeation aperture tube is in communication with the gas mixing chamber body, and the other end is in communication with the bottom tube.

4. The gas mixing device according to claim 3, characterized in that: The aperture size and length of the permeation aperture tube match the concentration of the gas generated by the bottom tube.

5. The gas mixing device according to claim 3, characterized in that: The gas mixing chamber structure further includes a second sealing ring, which is arranged between the permeation aperture tube and the threaded hole member.

6. The gas mixing device according to claim 1, characterized in that: The gas mixing cavity structure further includes: A gas mixing chamber upper cover, wherein the side surface of the gas mixing chamber upper cover has a fifth thread, the upper end of the gas mixing chamber body has a sixth thread, and the fifth thread is spirally connected to the sixth thread; an air intake pipe, the air intake pipe passing through the upper cover of the mixing chamber and extending to the bottom of the mixing chamber body; An air outlet pipe passes through the upper cover of the gas mixing chamber.

7. The gas mixing device according to claim 6, characterized in that: The top of the gas mixing chamber upper cover is provided with a first threaded hole and a second threaded hole; The air intake pipe passes through the first threaded hole, and at least a portion of the air intake pipe is spirally connected to the first threaded hole; The air outlet pipe passes through the second threaded hole, and at least a portion of the air outlet pipe is spirally connected to the second threaded hole.

8. The gas mixing device according to claim 6, characterized in that: The gas mixing chamber structure further includes a first sealing ring, which is arranged between the gas mixing chamber upper cover and the gas mixing chamber body.

9. The gas mixing device according to claim 1, characterized in that: The gas mixing chamber structure further includes a third sealing ring, which is arranged between the bottom tube and the gas mixing chamber body.

10. The gas mixing device according to claim 1, characterized in that: It also includes a temperature-controlled metal piece, which surrounds the bottom tube and is used for heating. By adjusting the heating temperature, the concentration of the volatile gas is adjusted.

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