Toxic gas concentration detection device for chemical industry park

Abstract

The utility model belongs to the technical field of toxic gas concentration detection in chemical industrial parks, and discloses a toxic gas concentration detection device for chemical industrial parks, which comprises a toxic gas concentration detection body, two ends of the toxic gas concentration detection body are communicated with gas pipelines, and impurity cleaning components are mounted in the gas pipelines. The impurity cleaning assembly comprises a scraping disc, the scraping disc is slidably connected to the interior of the gas pipeline, a material storage groove is formed in the scraping disc, an air inlet formed in the surface of the material storage groove communicates with a circulating pipe, the circulating pipe communicates with the gas pipeline, and sealing strips are symmetrically installed on the surface of the scraping disc. Through grooves matched with the sealing strips are formed in the surface of the gas pipeline, impurities attached to the interior of the pipeline can be cleaned, it is avoided that too many impurities are accumulated, the accuracy of gas toxic concentration detection is affected, and an operator can conveniently clean the interior of the pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of toxic gas concentration detection technology in chemical industrial parks, specifically a toxic gas concentration detection device for chemical industrial parks. Background Technology

[0002] With the rapid development of the chemical industry, the types and emission scale of toxic gases in chemical industrial parks are constantly expanding. Accurate and real-time monitoring of toxic gas concentrations has become a key link in ensuring safe production and ecological environment safety. As the core equipment of the safety monitoring system of chemical industrial parks, the accuracy of the detection data of toxic gas concentration detection devices is directly related to the effectiveness of safety early warning and emergency decision-making.

[0003] However, toxic gases produced during chemical production processes are often mixed with particulate impurities, oil stains, chemical crystals, and other pollutants. These impurities easily adhere to the inner walls of gas pipelines and the gas flow path of detection devices, leading to unstable gas flow or blockage. On the one hand, excessive impurities can hinder normal gas flow, preventing the gas sample entering the detection unit from accurately reflecting the actual concentration, resulting in deviations or even failure of the detection results. On the other hand, impurities adhering to the inner walls of pipelines or the surface of filters can enter the detection unit with the gas. These mixed impurities may contain adsorbed high concentrations of toxic gases or other interfering substances, causing an abnormal increase in the concentration of the target gas in the detection sample, resulting in serious distortion of the detection data.

[0004] Furthermore, the pipes are quite deep, making cleaning difficult. It requires manual insertion into the pipes for cleaning, which is not only cumbersome but also results in low cleaning efficiency.

[0005] Therefore, a toxic gas concentration detection device for chemical industrial parks is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a toxic gas concentration detection device for chemical industrial parks. It has the advantages of being able to clean impurities adhering to the pipeline, avoiding excessive accumulation of impurities that would affect the accuracy of toxic gas concentration detection, and facilitating the cleaning of the pipeline interior by operators.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a toxic gas concentration detection device for chemical industrial parks, comprising a toxic gas concentration detection body, both ends of which are connected to gas pipelines, and an impurity cleaning component is installed inside the gas pipelines;

[0008] The impurity cleaning component includes a scraper, which is slidably connected to the inside of the gas pipeline. The scraper has a storage tank inside, and an air inlet on the surface of the storage tank is connected to a flow pipe. The flow pipe is connected to the gas pipeline. Sealing strips are symmetrically installed on the surface of the scraper. The gas pipeline has a through groove that matches the sealing strip, and the sealing strip is engaged in the through groove. A filter screen is installed on the inner wall of the flow pipe, and a positioning component is installed on the surface of the gas pipeline.

[0009] Preferably, a sealing rubber gasket is installed on the outer surface of the sealing strip. The sealing rubber gasket is tightly attached to the surface of the gas pipe, and the length of the sealing rubber gasket is greater than that of the sealing strip, which effectively prevents gas leakage.

[0010] Preferably, the length of the flow tube is greater than the length of the scraper.

[0011] Preferably, the scraper is made of a wear-resistant material.

[0012] Preferably, the two ends of the sealing rubber gasket are designed with rounded transitions, and the curvature of the gas gasket is adapted to the curvature of the gas pipeline to form a seamless seal with the gas pipeline.

[0013] Preferably, the positioning component includes a connecting plate, the bottom of the sealing rubber gasket is mounted on the connecting plate, a positioning rod is slidably connected in a through hole on the surface of the connecting plate, one end of the positioning rod passes through the connecting plate and is inserted into an insertion hole on the surface of the gas pipeline.

[0014] Preferably, a return spring is sleeved on the surface of the positioning rod, one end of the return spring is connected to the positioning rod, and the other end of the return spring is connected to the connecting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting up an impurity cleaning component, can clean impurities attached to the gas pipeline, avoid excessive accumulation of impurities that would affect the accuracy of gas toxicity concentration detection, and facilitate operators to clean the inside of the gas pipeline.

[0017] 2. This utility model has a positioning component, which can position the scraper. During normal testing, the scraper is fixed to ensure stable gas flow; during cleaning, it is unlocked to facilitate scraper movement, making the operation convenient and efficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the gas pipeline of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model after it has been pulled out;

[0021] Figure 4 This is a schematic diagram of the structure of the scraper and sealing strip of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the sealing rubber gasket and connecting plate of this utility model.

[0023] In the diagram: 1. Toxic gas concentration detection unit; 12. Gas pipeline; 2. Impurity cleaning component; 21. Scraper; 23. Storage tank; 24. Sealing strip; 25. Sealing rubber gasket; 26. Flow pipe; 28. Filter screen; 3. Positioning component; 31. Connecting plate; 32. Positioning rod; 33. Return spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5 As shown, this utility model provides a toxic gas concentration detection device for chemical industrial parks, including a toxic gas concentration detection body 1, both ends of which are connected to gas pipes 12, and an impurity cleaning component 2 is installed inside the gas pipes 12.

[0026] The impurity cleaning component 2 includes a scraper 21, which is slidably connected to the inside of the gas pipeline 12. The scraper 21 has a storage tank 23 inside, and an air inlet on the surface of the storage tank 23 is connected to a flow pipe 26. The flow pipe 26 is connected to the gas pipeline 12. A sealing strip 24 is symmetrically installed on the surface of the scraper 21. A through groove adapted to the sealing strip 24 is opened on the surface of the gas pipeline 12, and the sealing strip 24 is snapped into this through groove. A filter screen 28 is installed on the inner wall of the flow pipe 26. A positioning component 3 is installed on the surface of the gas pipeline 12. This component can clean impurities attached to the gas pipeline 12, avoid excessive accumulation of impurities, and prevent affecting the accuracy of gas toxicity concentration detection. It also facilitates the cleaning of the inside of the gas pipeline 12 by the operator.

[0027] Specifically, a sealing rubber gasket 25 is installed on the outer surface of the sealing strip 24. The sealing rubber gasket 25 is tightly attached to the surface of the gas pipe 12, and the length of the sealing rubber gasket 25 is greater than that of the sealing strip 24, which effectively prevents gas leakage.

[0028] like Figures 1 to 5 As shown, the length of the flow tube 26 is greater than the length of the scraper 21, which can prevent impurities from falling into the flow tube 26 during the scraping process.

[0029] Furthermore, the scraper 21 is made of wear-resistant material, which improves the service life of the scraper 21.

[0030] It is worth noting that the two ends of the sealing rubber gasket 25 are designed with rounded transitions, and its curvature is adapted to the curvature of the gas pipe 12 to form a seamless seal with the gas pipe 12.

[0031] like Figures 1 to 5 As shown, the positioning component 3 includes a connecting plate 31. The bottom of the sealing rubber gasket 25 is fitted with the connecting plate 31. A positioning rod 32 is slidably connected in a through hole on the surface of the connecting plate 31. One end of the positioning rod 32 passes through the connecting plate 31 and is inserted into a socket on the surface of the gas pipe 12, thereby enabling the positioning of the scraper 21. During normal testing, the scraper 21 is fixed to ensure stable gas flow. During cleaning, the locking is released to facilitate the movement of the scraper 21, making the operation convenient and efficient.

[0032] It is worth emphasizing that a return spring 33 is sleeved on the surface of the positioning rod 32. One end of the return spring 33 is connected to the positioning rod 32, and the other end of the return spring 33 is connected to the connecting plate 31, which makes it convenient for operators to use.

[0033] Among them, the structure of the toxic gas concentration detection body 1 is existing technology, and its working principle is a well-known technology. The appropriate model is selected according to the actual use, so it will not be explained in detail.

[0034] Working principle and process: Toxic gas containing impurities enters from one end of the gas pipe 12. During the flow through the pipe, the sealing strip 24 and sealing rubber gasket 25 on the surface of the scraper 21 are tightly attached to the inner wall of the gas pipe 12, ensuring that the gas can only enter the toxic gas concentration detection body 1 through the flow pipe 26 for detection and processing. At this time, the filter screen 28 in the flow pipe 26 filters the gas, thereby preventing impurities from entering the toxic gas concentration detection body 1.

[0035] When it is observed that there is a large accumulation of impurities on the inner wall of the gas pipeline 12, affecting the normal flow of gas, or when the detection data fed back by the toxic gas concentration detection body 1 shows abnormal fluctuations, the operator begins the cleaning operation. First, the positioning rod 32 is manually pulled to overcome the elastic force of the return spring 33 and disengage from the insertion hole on the surface of the gas pipeline 12. At this time, the positioning rod 32 slides in the through hole of the connecting plate 31, releasing the fixed restriction on the scraper 21 and preparing for subsequent movement.

[0036] Then the operator pulls the sealing strip 24. Since the sealing strip 24 is fixedly connected to the scraper 21 and is engaged in the groove on the surface of the gas pipe 12, when the sealing strip 24 is pulled, the scraper 21 will move upward along the inner wall of the gas pipe 12. The wear-resistant material on its outer circumference will move relative to the inner wall of the pipe, scraping off the accumulated impurities or attachments. The scraped impurities enter the storage tank 23. When the scraper 21 is pulled to the top of the gas pipe 12, the impurities accumulated in the gas pipe 12 will fall into the storage tank 23 for collection and processing. At this time, the operator cleans the impurities and filter screen 28 accumulated in the storage tank 23.

[0037] When scraping the inside of the gas pipe 12, since the length of the flow pipe 26 is greater than the length of the scraper 21, impurities can be prevented from falling into the flow pipe 26 during the scraping process, which could cause the filter screen 28 to become clogged.

[0038] After the impurities are cleaned, push the sealing strip 24 to reset the scraper 21 along the inner wall of the gas pipe 12. When the scraper 21 returns to the initial position, release the positioning rod 32. Under the elastic force of the reset spring 33, the positioning rod 32 automatically inserts into the insertion hole on the surface of the gas pipe 12 and re-fixes the scraper 21.

[0039] The sealing strip 24 on the surface of the scraper 21 and the sealing rubber gasket 25 on its outer surface are tightly attached to the inner wall of the gas pipe 12 to form a good sealing structure, ensuring that the gas can only enter the toxic gas concentration detection body 1 through the flow pipe 26 according to the predetermined path, thereby ensuring the accuracy of the detection.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A toxic gas concentration detection device for a chemical industrial park, comprising a toxic gas concentration detection body (1), characterized in that: Both ends of the toxic gas concentration detection body (1) are communicated with gas pipelines (12), and the inside of the gas pipeline (12) is provided with an impurity cleaning assembly (2); The impurity cleaning assembly (2) comprises a scraper disc (21), the inside of the gas pipeline (12) is slidably connected with the scraper disc (21), the inside of the scraper disc (21) is provided with a storage groove (23), a flow pipe (26) is communicated with the gas pipeline (12) at the air inlet on the surface of the storage groove (23), the surface of the scraper disc (21) is symmetrically provided with a sealing strip (24), the surface of the gas pipeline (12) is provided with a through groove matched with the sealing strip (24), and the sealing strip (24) is clamped in the through groove, and the inner wall of the flow pipe (26) is provided with a filter screen (28), and the surface of the gas pipeline (12) is provided with a position positioning assembly (3). 2.The device for detecting concentration of toxic gas in a chemical industrial park according to claim 1, characterized in that: The outer surface of the sealing strip (24) is provided with a sealing rubber pad (25), the sealing rubber pad (25) is tightly attached to the surface of the gas pipeline (12), and the length of the sealing rubber pad (25) is greater than that of the sealing strip (24), so that gas leakage is effectively prevented. 3.The device for detecting concentration of toxic gas in a chemical industrial park according to claim 1, characterized in that: The length of the flow pipe (26) is greater than that of the scraper disc (21).

4. The toxic gas concentration detection device for a chemical industrial park according to claim 1, characterized in that: The scraper disc (21) is made of wear-resistant material.

5. The device for detecting concentration of toxic gas in a chemical industrial park according to claim 2, characterized in that: The two ends of the sealing rubber pad (25) are designed with a circular arc transition, and the radius thereof is matched with that of the gas pipeline (12), so that seamless sealing with the gas pipeline (12) is formed.

6. The device for detecting concentration of toxic gas in a chemical industrial park according to claim 2, characterized in that: The position positioning assembly (3) comprises a connecting plate (31), the bottom of the sealing rubber pad (25) is provided with the connecting plate (31), a through hole is formed in the surface of the connecting plate (31) and slidably connected with a positioning rod (32), one end of the positioning rod (32) penetrates through the connecting plate (31) and is inserted into a plug hole formed in the surface of the gas pipeline (12).

7. The device for detecting concentration of toxic gas in a chemical industrial park according to claim 6, characterized in that: The surface of the positioning rod (32) is sleeved with a reset spring (33), one end of the reset spring (33) is connected with the positioning rod (32), and the other end of the reset spring (33) is connected with the connecting plate (31).

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