Tail gas treatment device for hydrogen-related environment chamber

Abstract

The invention discloses a tail gas treatment device for a hydrogen-related environmental chamber, and the device comprises an outer pipeline which is in a three-way shape; the inner-layer pipeline is in a three-way shape and comprises a main body pipeline, the main body pipeline is in a three-way shape, a first channel of the main body pipeline is used for being connected with tail gas, a second channel and a third channel of the main body pipeline are vertically communicated, the second channel is located on the upper portion and connected with the separation ascending pipeline for discharging the tail gas, and the third channel is located on the lower portion and connected with the condensate water descending pipeline for discharging condensate water; and the at least one middle elastic cushioning fixing piece is supported and fixed between the outer-layer pipeline and the inner-layer pipeline in an interference manner. The outer-layer pipeline is used for controlling the pressure of the environmental chamber, and the inner-layer pipeline is used for being hermetically connected with the tail gas exhaust of the test vehicle, so that the environmental chamber exhaust pipe is separated from the tail gas exhaust pipeline of the test vehicle. According to the design, after exhaust gas of the tested vehicle enters the inner-layer pipeline, the gas rises and is discharged by the separation rising pipeline, and condensate water descends and is discharged by the condensate water descending pipeline, so that the pressure control of the environmental chamber is not influenced.

Description

Technical Field

[0001] The present invention relates to the field of environment, and in particular to an exhaust gas treatment device for a hydrogen-related environment cabin. Background Art

[0002] With the development of the automotive industry, hydrogen-powered vehicles have gradually entered the forefront of industry research. At the same time, environmental chambers for testing hydrogen-related equipment such as their engines have also begun to develop. Fuel cells use hydrogen as a medium. The hydrogen-oxygen reaction has extremely high energy utilization efficiency, and the only emission is water, which does not pollute the environment. However, it has unsafe characteristics. Hydrogen is the lightest element in nature, so hydrogen will leak more easily than other fluids. Hydrogen is flammable and explosive, so safety must be paid special attention. In hydrogen-related environmental chambers, the main test equipment is based on hydrogen-oxygen fuel cells. The exhaust gas components are mainly oxygen, hydrogen and water. Hydrogen is a hazardous gas, and water will affect the humidity control in the environmental chamber. The backflow of water condensed in the tail exhaust pipe will form liquid accumulation. Therefore, a simple and safe method is needed to separate hydrogen and water in the exhaust pipe and reduce the impact on the pressure balance control in the cabin.

[0003] Hydrogen-related exhaust gas cannot be discharged directly into the environmental chamber. If hydrogen-related exhaust gas is discharged directly into the environmental chamber, positive pressure will be generated in the chamber under the action of fresh air, affecting the pressure control balance in the environmental chamber. At present, the main method for treating hydrogen-related exhaust gas is to directly pass the exhaust gas generated by the equipment into the tail exhaust pipe of the environmental chamber and then discharge it out of the environmental chamber. However, if the equipment exhaust pipe is only placed at the tail exhaust port of the environmental chamber, there is a risk of exhaust gas leakage, which will cause the hydrogen content in the environmental chamber to exceed the standard and create a safety risk for the test. In addition, since the water condensed in the tail exhaust pipe will flow back to form liquid accumulation, if chemical methods are used to adsorb water vapor, the maintenance cost will be high and the steps will be cumbersome.

[0004] Therefore, there is an urgent need for a hydrogen-related exhaust gas discharge solution that can avoid affecting the environmental chamber as much as possible. Summary of the Invention

[0005] The Summary of the Invention introduces a series of simplified concepts, which are simplifications of existing technologies in the field and are further described in detail in the Detailed Description of the Invention. The Summary of the Invention is not intended to define the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] The technical problem to be solved by the present invention is to provide an exhaust gas treatment device for a hydrogen-related environmental chamber, which can discharge the exhaust gas in the hydrogen-related environmental chamber, reduce hydrogen leakage, avoid affecting the cabin pressure control of the environmental chamber, and divert condensate into a drainage pipe.

[0007] In order to solve the above technical problems, the present invention provides a hydrogen-related environmental chamber tail gas treatment device, comprising:

[0008] The outer pipe 1 is formed into a tee shape;

[0009] The inner pipe 2 is formed into a tee shape and includes:

[0010] The main pipeline 3 is formed into a tee shape, wherein the first passage 4 is used to connect the exhaust gas, the second passage 5 and the third passage 6 are vertically connected, the second passage 5 is located at the top and connected to the separation rising pipe 7 for exhaust gas discharge, and the third passage 6 is located at the bottom and connected to the condensate descending pipe 8 for condensate discharge;

[0011] At least one middle elastic shock-absorbing fixing member 9 is fixed between the outer layer pipe 1 and the inner layer pipe 2 in an interference support manner.

[0012] Preferably, the exhaust gas treatment device of the hydrogen-related environment cabin is further improved, wherein at least one intermediate elastic shock-absorbing fixing member 9 is fixedly mounted on the first passage 4;

[0013] Alternatively, at least one intermediate elastic shock-absorbing fixing member 9 is fixedly mounted on the first passage 4 , the separation ascending pipe 7 and the condensate descending pipe 8 .

[0014] Preferably, the exhaust gas treatment device for the hydrogen-related environment chamber is further improved to include:

[0015] The water diversion groove is formed on the inner wall of the condensate descending pipe 8.

[0016] Preferably, the exhaust gas treatment device of the hydrogen-related environment cabin is further improved, and at least one intermediate elastic shock-absorbing fixing part 9 is fixedly mounted on the first passage 4, the separation rising pipe 7 and the condensate descending pipe 8.

[0017] Preferably, the exhaust gas treatment device for the hydrogen-related environment chamber is further improved to include:

[0018] The flexible sleeve assembly is formed at one end of the main pipe 3 connected to the exhaust gas, and is used for sealing and sleeve connection with the exhaust gas of the test vehicle.

[0019] Preferably, the exhaust gas treatment device for the hydrogen-related environment chamber is further improved, and the flexible sleeve assembly includes:

[0020] A flexible pipe, the first end of which is fixedly connected to the end of the main pipe 3, and the second end of which is used to be sleeved on the exhaust pipe of the test vehicle;

[0021] An elastic sealing ring is formed at the second end of the flexible pipe and is used for sealing and fixing the flexible pipe to the exhaust pipe of the test vehicle.

[0022] Preferably, the exhaust gas treatment device for the hydrogen-related environment cabin is further improved, and the middle elastic shock-absorbing fixing member 9 is formed into a supporting net.

[0023] Preferably, the exhaust gas treatment device for the hydrogen-related environment cabin is further improved, and the middle elastic shock-absorbing fixing member 9 includes:

[0024] Multiple reinforcing ribs are evenly arranged radially from the outer wall of the inner pipe 2;

[0025] Multiple support rings or support half rings are concentrically arranged and fixed in series by radial reinforcement ribs.

[0026] Preferably, the exhaust gas treatment device for the hydrogen-related environment chamber is further improved, and the length of the reinforcing rib is greater than or equal to the distance between the outer pipe 1 and the inner pipe 2.

[0027] Preferably, the exhaust gas treatment device for the hydrogen-related environment cabin is further improved, and at least one mounting groove is formed on the outer wall of the inner pipe 2, which is used to install and fix the innermost support ring.

[0028] Preferably, the exhaust gas treatment device for the hydrogen-related environment chamber is further improved, and the mounting groove on the outer wall of the first passage 4 is formed on a side close to the exhaust pipe of the test vehicle.

[0029] The present invention can achieve at least the following technical effects:

[0030] 1. The outer pipe of the present invention is used for environmental chamber pressure control, and the inner pipe is used for sealing connection with the tail exhaust of the test vehicle, so that the exhaust pipe of the environmental chamber and the exhaust pipeline of the test vehicle are separated.

[0031] In this design, after the exhaust gas of the test vehicle enters the inner pipe, the gas rises and is discharged through the separation rising pipe, and the condensed water descends and is discharged through the condensed water descending pipe, which will not affect the pressure control of the environmental chamber.

[0032] 2. Due to the separate design of the outer and inner pipes of the present invention, condensation occurs in the inner pipe and is then smoothly discharged from the inner pipe through the guide groove, avoiding the influence of condensation accumulation, solidification and volatilization on the humidity inside the environmental chamber.

[0033] 3. The present invention incorporates a central elastic damping fixture, which quickly secures the outer and inner pipes relative to each other. Furthermore, the central elastic damping fixture, placed between the outer and inner pipes, effectively dampens vibrations generated by the test vehicle's exhaust, preventing unusual noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings herein are intended to illustrate the general characteristics of methods, structures, and / or materials used in certain exemplary embodiments of the present invention, supplementing the descriptions in the specification. However, the drawings herein are schematic diagrams not drawn to scale and may not accurately reflect the precise structure or performance characteristics of any given embodiment. The drawings herein should not be interpreted as defining or limiting the range of values or properties encompassed by the exemplary embodiments of the present invention. The present invention is further described in detail below in conjunction with the drawings and specific embodiments:

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 It is a schematic diagram of the inner layer pipeline structure of the present invention.

[0037] Description of reference numerals:

[0038] Outer pipe 1

[0039] Inner pipe 2

[0040] Main pipeline 3

[0041] First channel 4

[0042] Second passage 5

[0043] Third access 6

[0044] Separate rising pipe 7

[0045] Condensate downpipe 8

[0046] Middle elastic shock-absorbing fixing part 9. DETAILED DESCRIPTION

[0047] The following describes the embodiments of the present invention through specific embodiments. Those skilled in the art will fully understand the other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can be applied based on different perspectives and various modifications or changes can be made without departing from the overall design concept of the invention. It should be noted that the following embodiments and features therein can be combined with each other unless there is a conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be construed as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art. It should be understood that when an element is referred to as being "connected" or "coupled" to another element, the element can be directly connected or coupled to the other element, or intervening elements can be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements. Throughout the drawings, the same reference numerals represent the same element. As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items.

[0048] First embodiment;

[0049] refer to Figure 1 Combine Figure 2 As shown, a hydrogen environment cabin exhaust gas treatment device includes:

[0050] The outer pipe 1 is formed into a tee shape;

[0051] The inner pipe 2 is formed into a tee shape and includes:

[0052] The main pipeline 3 is formed into a tee shape, wherein the first passage 4 is used to connect the exhaust gas, the second passage 5 and the third passage 6 are vertically connected, the second passage 5 is located at the top and connected to the separation rising pipe 7 for exhaust gas discharge, and the third passage 6 is located at the bottom and connected to the condensate descending pipe 8 for condensate discharge;

[0053] At least one middle elastic shock-absorbing fixing member 9 is fixed between the outer layer pipe 1 and the inner layer pipe 2 in an interference support manner.

[0054] Furthermore, at least one intermediate elastic shock-absorbing fixing member 9 is fixed on the first passage 4, and two intermediate elastic shock-absorbing fixing members 9 can also be arranged on the first passage 4 at a certain distance to further enhance the support and reduce vibration.

[0055] Furthermore, at least one intermediate elastic shock-absorbing fixing member 9 may be arranged and fixed on each of the first passage 4 , the separation ascending pipe 7 and the condensate descending pipe 8 .

[0056] Second embodiment;

[0057] The second embodiment of the present invention is a further improvement on the above-mentioned first embodiment, and the same parts are not repeated here. The second embodiment of the present invention further includes:

[0058] The water diversion groove is formed on the inner wall of the condensate descending pipe 8.

[0059] The water diversion channel may have a slope or not. The cross section of the water diversion channel may be rectangular, trapezoidal, U-shaped, triangular, etc.

[0060] Third embodiment;

[0061] The second embodiment of the present invention is a further improvement on the first embodiment or the second embodiment, and the same parts are not repeated here. The second embodiment further includes:

[0062] The flexible sleeve assembly is formed at one end of the main pipe 3 connected to the exhaust gas, and is used for sealing and sleeve connection with the exhaust gas of the test vehicle.

[0063] Exemplarily, the flexible sleeve assembly includes:

[0064] A flexible pipe, such as a rubber pipe, has a first end fixedly connected to the end of the main pipe 3 and a second end for sleeved on the exhaust pipe of the test vehicle;

[0065] An elastic sealing ring, such as a rubber sealing ring, is formed at the second end of the flexible pipe and is used to seal and fix the flexible pipe to the exhaust pipe of the test vehicle.

[0066] Fourth embodiment;

[0067] The present invention provides an intermediate elastic shock-absorbing fixing member that can be used in the first to third embodiments described above, which is formed into a support net; illustratively, the support net includes:

[0068] Multiple reinforcing ribs are evenly arranged radially from the outer wall of the inner pipe 2. The length of the reinforcing ribs is greater than or equal to the distance between the outer pipe 1 and the inner pipe 2, so that the middle elastic shock-absorbing fixing member is interference-fixed between the outer pipe 1 and the inner pipe 2.

[0069] Multiple support rings or support half rings are concentrically arranged and fixed in series by radial reinforcement ribs.

[0070] Preferably, the innermost support ring among the multiple support rings is interference fit on the inner pipe 2 .

[0071] Fifth embodiment;

[0072] The fifth embodiment of the present invention is a further improvement on the first to fourth embodiments described above, and the same parts are not repeated here. The fifth embodiment of the present invention further includes:

[0073] At least one mounting groove is formed on the outer wall of the inner pipe 2 and is used to mount and fix the innermost support ring.

[0074] Preferably, the mounting groove of the outer wall of the first passage 4 is formed on a side close to the exhaust pipe of the test vehicle.

[0075] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will also be understood that, unless expressly defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, rather than being interpreted in an idealized or overly formal sense.

[0076] The present invention has been described in detail above through specific implementation methods and examples, but these do not constitute a limitation of the present invention. Without departing from the principles of the present invention, those skilled in the art may make many variations and improvements, which should also be considered within the scope of protection of the present invention.

Claims

1. A hydrogen-related environment cabin tail gas treatment device, characterized in that: include: An outer pipe (1) is formed into a tee shape; The inner pipe (2) is formed into a tee shape and comprises: The main pipeline (3) is formed into a three-way shape, wherein the first passage (4) is used to connect the exhaust gas, the second passage (5) and the third passage (6) are vertically connected, the second passage (5) is located at the top and connected to the separation rising pipe (7) for exhaust gas discharge, and the third passage (6) is located at the bottom and connected to the condensate descending pipe (8) for condensate discharge; At least one middle elastic shock-absorbing fixing member (9) is fixed between the outer layer pipe (1) and the inner layer pipe (2) in an interference support manner.

2. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 1, characterized in that: At least one intermediate elastic shock-absorbing fixing member (9) is sleeved and fixed on the first passage (4); Alternatively, at least one intermediate elastic shock-absorbing fixing member (9) is fixedly mounted on the first passage (4), the separation ascending pipeline (7) and the condensate descending pipeline (8).

3. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 1, characterized in that: Also includes: A water diversion groove is formed on the inner wall of the condensate descending pipe (8).

4. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 1, characterized in that: Also includes: A flexible sleeve assembly is formed at one end of the main pipe (3) connected to the exhaust gas, and is used for sealingly sleeved connection with the exhaust gas of the test vehicle.

5. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 4, characterized in that: The flexible socket assembly includes: A flexible pipe, the first end of which is fixedly connected to the end of the main pipe (3), and the second end of which is used to be sleeved on the exhaust pipe of the test vehicle; An elastic sealing ring is formed at the second end of the flexible pipe and is used for sealing and fixing the flexible pipe to the exhaust pipe of the test vehicle.

6. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 1, characterized in that: The middle elastic shock-absorbing fixing member (9) is formed as a supporting net.

7. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 6, characterized in that: The middle elastic shock-absorbing fixing member (9) comprises: A plurality of reinforcing ribs are evenly arranged in a radially radiating manner from the outer wall of the inner pipe (2); Multiple support rings or support half rings are concentrically arranged and fixed in series by radial reinforcement ribs.

8. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 7, characterized in that: The length of the reinforcing rib is greater than or equal to the distance between the outer layer pipe (1) and the inner layer pipe (2).

9. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 7, characterized in that: At least one mounting groove is formed on the outer wall of the inner layer pipe (2) and is used for mounting and fixing the innermost support ring.

10. The exhaust gas treatment device for a hydrogen-related environment chamber according to claim 8, characterized in that: The mounting groove of the outer wall of the first passage (4) is formed on a side close to the exhaust pipe of the test vehicle.

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