Sampling device for chemical waste gas detection equipment

Abstract

The present invention discloses a sampling device for chemical waste gas detection equipment, including a sampling containing box, the bottom inner wall of the sampling containing box is fixedly connected with an air suction sponge, the top outer wall of the air suction sponge is fixedly connected with an air suction and exhaust control plate, the outer ring wall of the air suction and exhaust control plate is slidably connected to the inner ring wall of the sampling containing box through a sliding connecting piece, the bottom outer wall of the air suction and exhaust control plate is connected to the inside of the air suction sponge through a connecting port, and the top of the connecting port is connected with a sealed connecting pipe. The present invention relates to the field of waste gas detection technology. The sampling device for chemical waste gas detection equipment uses the degree of extrusion of rubber cotton as the suction and exhaust power source, the surface of the rubber cotton is smooth and not easy to stick to particulate matter, thereby ensuring the concentration invariance of the sampled gas, and compared with vacuum equipment, it has a lower cost, lighter weight, is easy to carry, and is convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas detection, and in particular to a sampling device for chemical waste gas detection equipment. Background Art

[0002] Chemical waste gas refers to toxic and harmful gases discharged by chemical plants during chemical production. Chemical waste gas often contains many types of pollutants, with complex physical and chemical properties and different toxicities, which seriously pollute the environment and affect human health. The composition of chemical waste gas produced by different chemical production industries varies greatly. For example, the waste gas produced by the chlor-alkali industry mainly contains chlorine, hydrogen chloride, vinyl chloride, mercury, acetylene, etc., and the waste gas produced by the nitrogen fertilizer industry mainly contains nitrogen oxides, urea dust, carbon monoxide, ammonia, sulfur dioxide, methane, etc.

[0003] At present, the sampling devices used in chemical waste gas detection equipment are mostly sealed and stored after being evacuated by vacuum equipment. They are costly, heavy, and inconvenient to carry. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a sampling device for chemical waste gas detection equipment, which uses the extrusion degree of rubber cotton as the suction and exhaust power source. The surface of the rubber cotton is smooth and not easy to stick to particulate matter, thereby ensuring the concentration invariance of the sampled gas. Compared with vacuum equipment, the present invention has lower cost, lighter weight, is easy to carry and easy to use.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sampling device for chemical waste gas detection equipment, including a sampling box, the bottom inner wall of the sampling box is fixedly connected with an air suction sponge, the top outer wall of the air suction sponge is fixedly connected with an air suction and exhaust control plate, the outer ring wall of the air suction and exhaust control plate is slidably connected to the inner ring wall of the sampling box through a sliding connecting piece, the bottom outer wall of the air suction and exhaust control plate is connected to the inside of the air suction sponge through a connecting port, and the top of the connecting port is connected with a sealed connecting pipe, the middle position of the top outer wall of the air suction and exhaust control plate is fixedly connected with a connecting extrusion rod, and the The top end of the connecting extrusion rod passes through the top inner wall of the sampling holding box and extends to the outside of the sampling holding box, and the sealed connecting tube passes through the outer wall of the connecting extrusion rod and extends to the outside of the top end of the connecting extrusion rod to be connected with a telescopic connecting tube, the top end of the telescopic connecting tube is fixedly connected with a sampling sample output device, a threaded connection fixing block is fixedly connected to the middle position of the top outer wall of the sampling holding box, and the outer ring wall of the connecting extrusion rod is threadedly connected to the inner ring wall of the threaded connection fixing block, the connecting outer ring wall of the connecting extrusion rod and the telescopic connecting tube is fixedly connected with a limiting brake snap ring, and the limiting brake snap ring is threadedly connected to the outer ring wall of the threaded connection fixing block.

[0008] Preferably, the sampling and sample-discharging device includes a connecting funnel, the top outer ring wall of the connecting funnel is fixedly connected with a threaded connecting ring, the outer ring wall of the threaded connecting ring is threadedly connected with a sealing cover, the bottom end of the connecting funnel is fixedly connected to the top of the telescopic connecting tube through a fixed connecting tube, and the inner ring wall of the fixed connecting tube is provided with a threaded groove.

[0009] Preferably, a transparent glass observation window is embedded in the middle of the outer wall of one side of the sampling container.

[0010] Preferably, a lifting handle is fixedly connected to one side outer wall of the sampling container.

[0011] Preferably, a sealing rubber ring is provided at the connection between the threaded fixing block and the sampling containing box.

[0012] Preferably, the air-inhaling sponge is made of smooth rubber cotton foamed from natural latex raw materials.

[0013] (III) Beneficial effects

[0014] The present invention provides a sampling device for chemical waste gas detection equipment. It has the following beneficial effects:

[0015] (1) The sampling device used in the chemical waste gas detection equipment is fixedly connected to an air suction sponge through the inner wall of the bottom end of the sampling container, and the outer wall of the top end of the air suction sponge is fixedly connected to an air suction and exhaust control plate. The outer ring wall of the air suction and exhaust control plate is slidably connected to the inner ring wall of the sampling container through a sliding connecting piece. The bottom outer wall of the air suction and exhaust control plate is connected to the inside of the air suction sponge through a connecting port, and the top of the connecting port is connected to a sealed connecting pipe. A connecting extrusion rod is fixedly connected to the middle position of the top outer wall of the air suction and exhaust control plate. The top of the connecting extrusion rod passes through the inner wall of the top end of the sampling container and extends to the outside of the sampling container, and the sealed connecting pipe passes through the outer wall of the connecting extrusion rod and extends to the outside of the top end of the connecting extrusion rod and is connected to a telescopic connecting pipe. The top of the telescopic connecting pipe is fixedly connected to a sampling device, and the middle position of the top outer wall of the sampling container is fixedly connected to a threaded The connecting fixed block, and the outer ring wall of the connecting extrusion rod is threadedly connected to the inner ring wall of the threaded connecting fixed block, the connecting outer ring wall of the connecting extrusion rod and the telescopic connecting tube is fixedly connected with a limit brake clamp ring, and the limit brake clamp ring is threadedly connected to the outer ring wall of the threaded connecting fixed block. The sampling and discharging device includes a connecting funnel, the top outer ring wall of the connecting funnel is fixedly connected with a threaded connecting ring, the outer ring wall of the threaded connecting ring is threadedly connected with a sealing cover, the bottom end of the connecting funnel is fixedly connected to the top of the telescopic connecting tube through the fixed connecting tube, and the inner ring wall of the fixed connecting tube is provided with a threaded groove, thereby achieving the purpose of reducing cost and facilitating carrying, and the extrusion degree of rubber cotton is used as the suction and exhaust power source, the surface of the rubber cotton is smooth, and it is not easy to stick to particulate matter, thereby ensuring the concentration invariance of the sampled gas, and compared with vacuum equipment, it has low cost, light weight, is easy to carry, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of the present invention;

[0017] Figure 2 It is a main schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the sampling device of the present invention.

[0019] In the figure: 1 sampling holding box, 2 suction sponge, 3 suction and exhaust control plate, 4 connecting port, 5 connecting extrusion rod, 6 sealing connecting pipe, 7 telescopic connecting pipe, 8 sampling sample device, 81 connecting funnel, 82 threaded connecting ring, 83 sealing sealing cover, 84 fixed connecting pipe, 9 threaded connecting fixing block, 10 limit brake clamp ring, 11 transparent glass observation window, 12 lifting handle, 13 sealing rubber ring, 14 sliding connecting piece. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-3 The present invention provides a technical solution: a sampling device for chemical waste gas detection equipment, comprising a sampling box 1, a suction sponge 2 is fixedly connected to the inner wall of the bottom end of the sampling box 1, a suction and exhaust control plate 3 is fixedly connected to the outer wall of the top end of the suction sponge 2, the outer ring wall of the suction and exhaust control plate 3 is slidably connected to the inner ring wall of the sampling box 1 through a sliding connecting piece 14, the bottom outer wall of the suction and exhaust control plate 3 is connected to the inside of the suction sponge 2 through a connecting port 4, and the top of the connecting port 4 is connected to a sealed connecting pipe 6, a connecting extrusion rod 5 is fixedly connected to the middle position of the top outer wall of the suction and exhaust control plate 3, the top of the connecting extrusion rod 5 passes through the inner wall of the top end of the sampling box 1 and extends to the outside of the sampling box 1, and the sealed connecting pipe 6 passes through the outer wall of the connecting extrusion rod 5 and extends to the outside of the top end of the connecting extrusion rod 5 and is connected to a telescopic connecting pipe 7, the top of the telescopic connecting pipe 7 is fixedly connected to a sampling sample output device 8, and the top outer wall of the top end of the sampling box 1 A threaded fixing block 9 is fixedly connected in the middle position, and the outer ring wall of the connecting extrusion rod 5 is threadedly connected to the inner ring wall of the threaded fixing block 9, and the outer ring wall connecting the connecting extrusion rod 5 and the telescopic connecting pipe 7 is fixedly connected with a limiting brake snap ring 10, and the limiting brake snap ring 10 is threadedly connected to the outer ring wall of the threaded fixing block 9. When the sampling process is carried out, the limiting brake snap ring 10 is first rotated to release the threaded fixing effect of the limiting brake snap ring 10 and the threaded fixing block 9. Thereafter, the user draws out the sampling and discharging device 8 and places it in the detection environment, and rotates to open the sealing sealing cover 83, and then rotates the connecting extrusion rod 5 to make the connecting extrusion rod 5 drive the suction and exhaust control plate 3 to move upward, thereby releasing the squeezing effect on the suction sponge 2. The suction sponge 2 fully expands after absorbing the sample gas through the sampling and discharging device 8, the telescopic connecting pipe 7 and the sealing connecting pipe 6 until the sampling process is completed, and then the sealing sealing cover 83 is rotated to seal the sampling and discharging device 8.

[0022] The sampling device 8 includes a connecting funnel 81, the top outer ring wall of the connecting funnel 81 is fixedly connected with a threaded connecting ring 82, the outer ring wall of the threaded connecting ring 82 is threadedly connected with a sealing cover 83, the bottom end of the connecting funnel 81 is fixedly connected to the top of the telescopic connecting tube 7 through a fixed connecting tube 84, and the inner ring wall of the fixed connecting tube 84 is provided with a threaded groove. When the chemical waste gas detection equipment starts the sampling process, the suction pipe mouth is threadedly connected to the inner ring wall of the fixed connecting tube 84, and then the connecting extrusion rod 5 is rotated in the opposite direction, so that the connecting extrusion rod 5 drives the suction and exhaust control plate 3 to move downward, strengthens the extrusion effect on the suction sponge 2, so that the sample gas in the suction sponge 2 is fully moved to the inside of the chemical waste gas detection equipment through the fixed connecting tube 84, until the detection process is completed, the user rotates the limit brake clamp ring 10, so that the limit brake clamp ring 10 completes the threaded fixing relationship with the threaded connection fixing block 9.

[0023] A transparent glass observation window 11 is inlaid and connected in the middle of the outer wall of one side of the sample containing box 1 .

[0024] A lifting handle 12 is fixedly connected to an outer wall of one side of the sample containing box 1 .

[0025] A sealing rubber ring 13 is provided at the connection between the threaded fixing block 9 and the sampling containing box 1 .

[0026] The suction sponge 2 is made of smooth rubber cotton foamed from natural latex raw material. The extrusion degree of the rubber cotton is used as the suction power source. The surface of the rubber cotton is smooth and not easy to stick to particles, thereby ensuring the concentration invariance of the sampled gas. Compared with vacuum equipment, it has low cost, light weight, is easy to carry and easy to use.

[0027] During use, when the sampling process is carried out, first rotate the limit brake clamp ring 10 to release the threaded fixing effect of the limit brake clamp ring 10 and the threaded connection fixing block 9, then the user will pull out the sampling and discharging device 8 and place it in the detection environment, and rotate to open the sealing cover 83, and then rotate the connecting extrusion rod 5 to make the connecting extrusion rod 5 drive the suction and exhaust control plate 3 to move upward, thereby releasing the squeezing effect on the suction sponge 2. The suction sponge 2 fully expands after absorbing the sample gas through the sampling and discharging device 8, the telescopic connecting pipe 7 and the sealed connecting pipe 6 until the sampling process is completed, and then rotate the sealing cover 83 to seal the sampling and discharging device 8; when the chemical waste gas detection equipment starts the sampling process, the suction pipe mouth and the fixed connection The inner ring wall of the through pipe 84 is threadedly connected, and then the connecting extrusion rod 5 is rotated in the opposite direction, so that the connecting extrusion rod 5 drives the suction and exhaust control plate 3 to move downward, thereby strengthening the extrusion effect on the suction sponge 2, so that the sample gas in the suction sponge 2 can be fully moved to the inside of the chemical waste gas detection equipment through the fixed connecting pipe 84. After the detection process is completed, the user rotates the limit brake clamp 10 to make the limit brake clamp 10 complete the threaded fixing relationship with the threaded connection fixing block 9; and the extrusion degree of the rubber cotton is used as the suction and exhaust power source. The surface of the rubber cotton is smooth and not easy to stick to particulate matter, thereby ensuring the concentration invariance of the sampled gas, and compared with the vacuum equipment, it has a lower cost, lighter weight, is easy to carry, and is easy to use.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for chemical waste gas detection equipment, comprising a sampling container (1), characterized in that: The bottom inner wall of the sampling container (1) is fixedly connected to an air suction sponge (2), the top outer wall of the air suction sponge (2) is fixedly connected to an air suction and exhaust control plate (3), the outer ring wall of the air suction and exhaust control plate (3) is slidably connected to the inner ring wall of the sampling container (1) via a sliding connection plate (14), the bottom outer wall of the air suction and exhaust control plate (3) is connected to the inside of the air suction sponge (2) via a connecting port (4), and the top of the connecting port (4) is connected to a sealed connecting pipe (6), a connecting extrusion rod (5) is fixedly connected to the middle position of the top outer wall of the air suction and exhaust control plate (3), the top of the connecting extrusion rod (5) passes through the top inner wall of the sampling container (1) and extends to the outside of the sampling container (1), and the sealed connecting pipe (6) passes through the outer wall of the connecting extrusion rod (5) and extends to the outside of the top of the connecting extrusion rod (5) and is connected to a telescopic connecting pipe (7), the telescopic connecting pipe (7) The top of the sampling and discharging device (8) is fixedly connected to the top, a threaded connection fixing block (9) is fixedly connected to the middle position of the top outer wall of the sampling holding box (1), and the outer ring wall of the connecting extrusion rod (5) is threadedly connected to the inner ring wall of the threaded connection fixing block (9), the connecting extrusion rod (5) and the outer ring wall of the telescopic connecting pipe (7) are fixedly connected to a limit brake snap ring (10), and the limit brake snap ring (10) is threadedly connected to the outer ring wall of the threaded connection fixing block (9); the sampling and discharging device (8) comprises a connecting funnel (81), the top outer ring wall of the connecting funnel (81) is fixedly connected to a threaded connection ring (82), the outer ring wall of the threaded connection ring (82) is threadedly connected to a sealing cover (83), the bottom end of the connecting funnel (81) is fixedly connected to the top of the telescopic connecting pipe (7) through a fixed connecting pipe (84), and the inner ring wall of the fixed connecting pipe (84) is provided with a threaded groove; A transparent glass observation window (11) is inlaid and connected in the middle of the outer wall of one side of the sample holding box (1); a lifting handle (12) is fixedly connected to the outer wall of one side of the sample holding box (1); A sealing rubber ring (13) is provided at the connection between the threaded connection fixing block (9) and the sample containing box (1); The air-inhaling sponge (2) is made of smooth rubber cotton foamed from natural latex raw materials; The degree of extrusion of the rubber cotton is used as the power source for suction and exhaust.

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