Gas filtering structure for high-temperature combustion infrared thermal conductivity combined determination method

Abstract

The utility model relates to the technical field of a high-temperature combustion infrared thermal conductivity combined measurement method, in particular to a gas filtering structure of the high-temperature combustion infrared thermal conductivity combined measurement method, which comprises a mounting shell, one side of the mounting shell is communicated with a gas inlet pipe, the inner side of the mounting shell is fixedly connected with a filter screen which is arranged in an inclined manner, and the filter screen is fixedly connected with a gas outlet pipe. One side, far away from the air inlet pipe, of the mounting shell is communicated with a through pipe, the outer side of the through pipe is provided with a second valve, and the inner side of the mounting shell is fixedly connected with a positioning plate penetrating through one side of the mounting shell. One of the adsorption bottles is filled with asbestos, the other one of the adsorption bottles is filled with a magnesium perchlorate solution, solid particles in the gas are filtered out by the filter screen, then the alkali asbestos and the magnesium perchlorate solution in the adsorption bottles can adsorb CO2 and H2O respectively, and the filtered gas can flow out from the through pipe after the second valve is opened.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature combustion infrared thermal conductivity combined determination method, in particular to a gas filtration structure for the high-temperature combustion infrared thermal conductivity combined determination method. Background Technique

[0002] The principle of the high-temperature combustion infrared thermal conductivity combined determination method is to take a certain amount of sample and burn it at a high temperature with high-purity oxygen introduced. Sulfur oxides and halides in the combustion products are removed by furnace reagents, while H2O (gaseous), CO2 and NO x enter the gas storage tank and are mixed evenly. A quantitatively extracted portion of the mixed gas is sent into the infrared detection cell to respectively measure the contents of CO2 and H2O, so as to calculate the contents of carbon and hydrogen elements. Then, another quantitatively extracted portion of the mixed gas is carried by high-purity helium as a carrier gas, and NOx is reduced to N2 by hot copper. CO2 and H2O (gaseous) are removed by alkali asbestos and magnesium perchlorate respectively, and then enter the thermal conductivity detection cell to measure the content of N2, so as to calculate the content of nitrogen element.

[0003] During the experiment, it is necessary to remove solid particles, carbon dioxide and moisture in the gas. If the impurities cannot be well removed, it may have a certain impact on the experimental results. Therefore, in view of the above problems, a gas filtration structure for the high-temperature combustion infrared thermal conductivity combined determination method is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a gas filtration structure for the high-temperature combustion infrared thermal conductivity combined determination method to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gas filtration structure for the high-temperature combustion infrared thermal conductivity combined determination method, including an installation housing. One side of the installation housing is communicated with an air inlet pipe. An inclined filter screen is fixedly connected to the inner side of the installation housing. The side of the installation housing away from the air inlet pipe is communicated with a through pipe. A second valve is installed on the outer side of the through pipe. A positioning plate penetrating through one side of the installation housing is fixedly connected to the inner side of the installation housing. A through groove is opened on the side of the installation housing where the positioning plate is provided. An adsorption bottle is snap-fitted in the through groove. The number of the adsorption bottles is two. A spiral cap is spirally connected to the outer side of the adsorption bottle.

[0007] Preferably, a sealing sleeve is fixedly connected to the top of the positioning plate. The sealing sleeve is fixedly connected to the installation housing and sleeved on the outer side of the adsorption bottle.

[0008] Preferably, a chute communicating with the through groove is formed inside the installation housing. A spring is arranged inside the chute. One end of the spring is fixedly connected to the inner wall of the chute, and the other end of the spring far from the inner wall of the chute is fixedly connected to a clamping block with an arc-shaped side. The clamping block slides inside the chute, and a clamping groove with the same groove diameter is formed at the top of the adsorption bottle.

[0009] Preferably, the clamping blocks and the clamping grooves are arranged in one-to-one correspondence, and the arc-shaped side of the clamping block is clamped inside the clamping groove.

[0010] Preferably, a hopper is arranged at the bottom of the installation housing, and a first valve is installed at the bottom of the hopper.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, through the structure composed of a filter screen and an adsorption bottle, etc., the adsorption bottle is installed through a positioning plate and a through groove. One adsorption bottle is filled with alkali asbestos, and the other is filled with magnesium perchlorate solution. The filter screen filters out solid particles in the gas. Since the filter screen is inclined, under the action of gravity, the solid particles will eventually slide down the filter screen into the hopper. When the test is completed, the first valve is manually opened to discharge the particles in the gas. Then, the alkali asbestos and magnesium perchlorate solution in the adsorption bottle will respectively adsorb CO2 and H2O, and the filtered gas will flow out from the through pipe after opening the second valve;

[0013] 2. In the present utility model, through the structure composed of a through groove, a positioning plate, a chute, a spring, a clamping block, and a clamping groove, etc., the adsorption bottle can be taken out from the inside of the installation housing, and a screw cap that can be opened is arranged on one side of the adsorption bottle, which is convenient for adding magnesium perchlorate solution or alkali asbestos inside the adsorption bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is for the present utility model Figure 1 Schematic diagram of the structure at A;

[0016] Figure 3 Schematic diagram of the installation structure of alkali asbestos of the present utility model;

[0017] Figure 4 Schematic diagram of the structure at the adsorption bottle of the present utility model.

[0018] In the figure: 1. Installation housing; 2. Air inlet pipe; 3. Hopper; 4. First valve; 5. Filter screen; 6. Connecting pipe; 7. Second valve; 8. Positioning plate; 9. Sealing sleeve; 10. Through groove; 11. Adsorption bottle; 12. Screw cap; 13. Slide groove; 14. Spring; 15. Block; 16. Card slot. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] It should be noted that the terms used here are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used here, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0021] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary instructions, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0023] For the convenience of description, spatial relative terms can be used here, such as "above...", "above...", "on the upper surface of...", "the above...", etc., to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation except for the orientation described in the figure of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "above other devices or structures" will then be positioned as "below other devices or structures" or "beneath other devices or structures". Thus, the exemplary term "above..." can include two orientations, namely "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0024] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above words have no special meanings. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0026] A gas filtering structure for a combined determination method of high-temperature combustion and infrared thermal conductivity includes an installation housing 1. One side of the installation housing 1 is communicated with an air inlet pipe 2. An inclined filter screen 5 is fixedly connected to the inner side of the installation housing 1. The side of the installation housing 1 far from the air inlet pipe 2 is communicated with a through pipe 6. A second valve 7 is installed on the outer side of the through pipe 6. A positioning plate 8 penetrating one side of the installation housing 1 is fixedly connected to the inner side of the installation housing 1. A through groove 10 is opened on the side of the installation housing 1 where the positioning plate 8 is provided. An adsorption bottle 11 is snap-fitted inside the through groove 10. The number of adsorption bottles 11 is two in total. A screw cap 12 is screwed on the outer side of the adsorption bottle 11.

[0027] A sealing sleeve 9 is fixedly connected to the top of the positioning plate 8. The sealing sleeve 9 is fixedly connected to the installation housing 1. The sealing sleeve 9 is sleeved on the outside of the adsorption bottle 11. This setting makes the sealing sleeve 9 enhance the airtightness between the adsorption bottle 11 and the installation housing 1. A chute 13 communicating with the through groove 10 is opened on the inner side of the installation housing 1. A spring 14 is arranged inside the chute 13. One end of the spring 14 is fixedly connected to the inner wall of the chute 13. The end of the spring 14 away from the inner wall of the chute 13 is fixedly connected to a clamping block 15 with an arc-shaped side. The clamping block 15 slides inside the chute 13. A clamping groove 16 with the same groove diameter is opened at the top of the adsorption bottle 11. This setting enables the installation of the clamping block 15 and the positioning of the clamping groove 16. The clamping blocks 15 and the clamping grooves 16 are arranged in one-to-one correspondence. The arc-shaped side of the clamping block 15 is clamped inside the clamping groove 16. This setting enables the positioning of the adsorption bottle 11 by clamping the clamping block 15 inside the clamping groove 16. A hopper 3 is arranged at the bottom of the installation housing 1. A first valve 4 is installed at the bottom of the hopper 3. This setting makes it so that because the filter screen 5 is inclined, under the action of gravity, the solid particles will eventually slide down the filter screen 5 into the hopper 3. When the test is completed, the first valve 4 is manually opened to discharge the particles in the gas.

[0028] Workflow: When using the gas filtration structure of the high-temperature combustion infrared thermal conductivity combined determination method to filter the gas after high-temperature combustion, rotate the screw cap 12 to open the adsorption bottle 11. Then, place magnesium perchlorate solution or alkali asbestos inside the adsorption bottle 11 respectively, and then screw the screw cap 12 on again. Then, place the adsorption bottle 11 on the positioning plate 8 and push the adsorption bottle 11 to slide inside the through groove 10. During this process, the clamping block 15 will be first squeezed and thus slide inside the chute 13, and the spring 14 will be compressed by the clamping block 15. As it is gradually pushed, when the clamping block 15 is clamped inside the clamping groove 16, stop pushing the adsorption bottle 11, that is, complete the installation of the adsorption bottle 11. The sealing sleeve 9 will enhance the airtightness between the adsorption bottle 11 and the installation housing 1. Then, pass the gas after high-temperature combustion through the intake pipe 2 into the installation housing 1. The filter screen 5 filters out the solid particles in the gas. Because the filter screen 5 is inclined, under the action of gravity, the solid particles will eventually slide down the filter screen 5 into the hopper 3. When the test is completed, manually open the first valve 4 to discharge the particles in the gas. Then, the alkali asbestos and magnesium perchlorate solution in the adsorption bottle 11 will adsorb CO2 and H2O respectively. Open the second valve 7, and the filtered gas will flow out through the through pipe 6.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas filtration structure for a combined high-temperature combustion and infrared thermal conductivity determination method, comprising an installation housing (1), characterized in that: One side of the installation housing (1) is communicated with an intake pipe (2). A filter screen (5) which is inclined is fixedly connected to the inner side of the installation housing (1). One side of the installation housing (1) far away from the intake pipe (2) is communicated with a through pipe (6). A second valve (7) is installed on the outer side of the through pipe (6). A positioning plate (8) which penetrates through one side of the installation housing (1) is fixedly connected to the inner side of the installation housing (1). A through groove (10) is formed on one side of the installation housing (1) where the positioning plate (8) is arranged. An adsorption bottle (11) is snap-fitted in the inner side of the through groove (10). The number of the adsorption bottles (11) is two. A screw cap (12) is screwed on the outer side of the adsorption bottle (11).

2. The gas filtering structure of the high-temperature combustion infrared thermal conductivity combined determination method according to claim 1, wherein: A sealing sleeve (9) is fixedly connected to the top of the positioning plate (8). The sealing sleeve (9) is fixedly connected to the installation housing (1). The sealing sleeve (9) is sleeved on the outer side of the adsorption bottle (11).

3. The gas filtration structure of a high-temperature combustion infrared thermal conductivity combined determination method according to claim 1, characterized in that: A sliding groove (13) which is communicated with the through groove (10) is formed in the inner side of the installation housing (1). A spring (14) is arranged in the inner side of the sliding groove (13). One end of the spring (14) is fixedly connected to the inner wall of the sliding groove (13). One end of the spring (14) far away from the inner wall of the sliding groove (13) is fixedly connected to a clamping block (15) with one side being arc-shaped. The clamping block (15) slides in the inner side of the sliding groove (13). A clamping groove (16) with equal groove diameters is formed in the top of the adsorption bottle (11).

4. The gas filtration structure of a high-temperature combustion infrared thermal conductivity combined determination method according to claim 3, characterized in that: The clamping blocks (15) and the clamping grooves (16) are arranged in one-to-one correspondence. The arc-shaped side of the clamping block (15) is snap-fitted in the inner side of the clamping groove (16).

5. The gas filtration structure of a high-temperature combustion infrared thermal conductivity combined determination method according to claim 1, wherein: A hopper (3) is arranged at the bottom of the installation housing (1). A first valve (4) is installed at the bottom of the hopper (3).

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