Toxic gas temperature sensor protective layer structure
By employing a multi-layered nested protective structure, high-strength materials, and connection design, the problem of sensor corrosion in toxic gas environments has been solved, achieving long sensor life, accurate measurement, and low maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional temperature sensors are easily corroded in toxic gas environments, resulting in shortened service life, reduced measurement accuracy, and difficult maintenance. The traditional protective layer structure is not easy to disassemble, leading to high maintenance costs and long downtime.
It adopts a multi-layered nested protective layer structure. The outer layer is made of high-strength lightweight composite material polyamide, the middle layer is made of polyethylene, and the inner layer is made of polytetrafluoroethylene. It is connected by magnetic and threaded connection design. The inner layer is filled with bagged absorbent, providing multiple barriers and convenient disassembly and maintenance.
It enhances the sensor's protection capabilities, extends its service life, improves measurement accuracy, reduces maintenance costs and downtime, and ensures safety and stability.
Smart Images
Figure CN224034784U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sensor protection technical field, concretely relates to a temperature sensor protective layer structure of toxic gas. BACKGROUND
[0002] In modern industry and scientific research field, temperature sensor is widely used in various environments, especially in high-risk industries such as chemical industry, petroleum, natural gas, nuclear energy etc. However, these environments are often full of various toxic gases, such as chlorine, hydrogen sulfide, ammonia etc., which seriously threaten the performance and life of sensor. Toxic gas has strong corrosive property, can quickly erode the shell and internal circuit of sensor, leading to sensor failure. Traditional protective measures often cannot completely block the erosion of these gases, leading to greatly shortened service life of sensor. The existence of toxic gas can affect the measurement accuracy of sensor, leading to inaccurate temperature reading. This error is particularly serious in high-precision measurement scenarios, which may lead to equipment failure or safety accidents. In the environment of toxic gas, the maintenance and replacement of sensor become very difficult and dangerous. The traditional protective layer structure is often not easy to disassemble, leading to high maintenance cost, long downtime and affecting production efficiency. SUMMARY
[0003] Therefore, the utility model provides a temperature sensor protective layer structure of toxic gas, which can solve the problem that the existing sensor cannot adapt to the toxic gas environment.
[0004] The utility model is realized as follows:
[0005] The utility model provides a temperature sensor protective layer structure of toxic gas, which comprises a temperature sensor body, an outer layer, a middle layer and an inner layer, a protective layer is wrapped outside the temperature sensor body, the protective layer comprises the outer layer, the middle layer and the inner layer from inside to outside, the protective layer is a multilayer nested structure, the outer layer is a detachable and separable cylindrical structure, the outer layer is fixedly connected with the middle layer, the middle layer is used for controlling the penetration of toxic gas, the inner layer is used for fixing and containing the temperature sensor body, and the temperature sensor body is plug-in connected with the clamping groove in the inner layer.
[0006] On the basis of the above technical scheme, the temperature sensor protective layer structure of toxic gas of the utility model can also be improved as follows:
[0007] The outer layer is made of high-strength lightweight composite material polyamide, and memory sponge is filled between the outer layer and the middle layer.
[0008] The improved scheme has the beneficial effects that the polyamide is impact-resistant and wear-resistant, ensures the durability and low weight of the protective layer, and is easy to install and use. The outer layer can effectively control the penetration of toxic gases, increasing safety. The use of memory foam between the outer layer and the middle layer not only provides additional cushioning protection, but also helps to resist external impact, increasing overall stability.
[0009] Further, the outer layer includes an upper outer shell and a lower outer shell, and the upper top surface of the lower outer shell is provided with a groove, and the lower bottom surface of the upper outer shell is fixed with a protrusion, and the protrusion is matched with the groove, and the upper outer shell and the lower outer shell are connected by magnetic attraction.
[0010] Further, the middle layer is made of polyethylene, and the middle layer is a hollow cylindrical structure.
[0011] Further, the middle layer includes a middle layer upper outer shell, a middle layer lower outer shell, a permeation layer, a sliding groove and a rotating sleeve, the middle layer lower outer shell is a hollow cylindrical structure with an open upper end, the lower bottom surface of the middle layer lower outer shell is fixedly connected with the inner wall of the lower bottom surface of the lower outer shell, the inner side of the middle layer lower outer shell is provided with an internal thread, the middle layer lower outer shell is a cylindrical pipe structure, the outer side of the middle layer upper outer shell is provided with an external thread, and the middle layer upper outer shell and the middle layer lower outer shell are connected by threads.
[0012] The improved scheme has the beneficial effects that the threaded connection design of the middle layer makes the installation and disassembly process more smooth, and can ensure the close fit between different parts.
[0013] Further, the upper top surface of the middle layer upper outer shell is provided with a sliding groove, the outer surface of the middle layer upper outer shell is provided with a rectangular through hole, the rotating sleeve penetrates through the sliding groove and is in sliding connection with the sliding groove, the rotating sleeve is a cylindrical sleeve structure without a lower bottom surface, and the surface of the rotating sleeve is uniformly distributed with three permeation layers.
[0014] Further, the permeation layer is matched with the rectangular through hole on the surface of the middle layer lower outer shell.
[0015] Further, the inner layer is made of polytetrafluoroethylene, and the inner surface of the inner layer is covered with a flexible conductive film.
[0016] The improved scheme has the beneficial effects that polytetrafluoroethylene is resistant to chemical corrosion and has good sealing performance; the flexible conductive film is used for signal transmission, which improves the response speed and accuracy of the sensor, and reduces the interference.
[0017] Further, the inner layer is a hollow cylindrical shell structure, and the inner layer is divided into upper and lower parts, and the upper and lower parts are connected by magnetic attraction, and the inner layer is fixedly connected with the lower bottom surface of the middle layer lower outer shell, and the bagged adsorbent is filled between the middle layer and the inner layer.
[0018] The beneficial effect of the improved scheme is that the bagged adsorbent between the inner layer and the middle layer can be used to adsorb harmful substances, which helps to further reduce the concentration of toxic gas and enhance safety performance
[0019] Further, the outer layer, the middle layer and the inner layer are transparent structures.
[0020] The beneficial effect of the improved scheme is that the transparent design can facilitate monitoring and viewing the internal state.
[0021] Compared with the prior art, the temperature sensor protective layer structure for toxic gas provided by the utility model has the beneficial effects that:
[0022] 1. The protective layer is composed of multiple barriers in a multi-layer nested design, which enhances the protection of the temperature sensor, effectively prevents the direct contact of the temperature sensor body with toxic gas, improves the service life and reliability of the sensor, and enables the sensor to work normally in harsh environments.
[0023] 2. The temperature sensor body is plug-in connected with the clamping groove in the inner layer, which facilitates installation and disassembly.
[0024] 3. The outer layer is designed in a detachable and separable manner, which facilitates replacement, maintenance and replacement of the temperature sensor body, and reduces maintenance cost and downtime.
[0025] 4. The middle layer can control the penetration of toxic gas, so that the sensor can accurately measure the environmental temperature under the premise of safety. Complete isolation of the gas may cause the sensor to be unable to sense the external environmental changes. BRIEF DESCRIPTION OF DRAWINGS
[0026] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the description of the embodiments of the utility model, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.
[0027] Fig. 1 It is a partial sectional view of a temperature sensor protective layer structure for toxic gas.
[0028] Fig. 2 It is a sectional view of a temperature sensor protective layer structure for toxic gas.
[0029] Fig. 3 It is a top view of a sliding groove of a temperature sensor protective layer structure for toxic gas.
[0030] In the drawings, the component list represented by each sign is as follows:
[0031] 10. Temperature sensor body; 20. Outer layer; 21. Upper outer shell; 22. Lower outer shell; 30. Middle layer; 31. Middle upper outer shell; 32. Middle lower outer shell; 33. Permeable layer; 34. Slide groove; 35. Rotating sleeve; 40. Inner layer. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0033] like Figs. 1-3 The diagram shows an embodiment of a protective layer structure for a temperature sensor of toxic gases provided by this utility model. In this embodiment, it includes a temperature sensor body 10, an outer layer 20, a middle layer 30, and an inner layer 40. The temperature sensor body 10 is wrapped with a protective layer. The protective layer consists of an outer layer 20, a middle layer 30, and an inner layer 40 from the inside out. The protective layer has a multi-layer nested structure. The outer layer 20 is a detachable cylindrical structure. The outer layer 20 is fixedly connected to the middle layer 30. The middle layer 30 is used to control the permeation of toxic gases. The inner layer 40 is used to fix and hold the temperature sensor body 10. The temperature sensor body 10 is plugged into and disconnected from the slot inside the inner layer 40.
[0034] The temperature sensor body 10 uses a thermistor temperature sensor, which is not affected by magnetic attraction.
[0035] In the above technical solution, the outer layer 20 is made of high-strength lightweight composite material polyamide, and memory foam is filled between the outer layer 20 and the middle layer 30.
[0036] Furthermore, in the above technical solution, the outer layer 20 includes an upper outer shell 21 and a lower outer shell 22. A groove is provided on the top surface of the lower outer shell 22, and a protrusion is fixed on the bottom surface of the upper outer shell 21. The protrusion is adapted to the groove, and the upper outer shell 21 and the lower outer shell 22 are connected by magnetic attraction.
[0037] Furthermore, in the above technical solution, the middle layer 30 is made of polyethylene and has a hollow cylindrical structure.
[0038] Furthermore, in the above technical solution, the middle layer 30 includes an upper middle outer shell 31, a lower middle outer shell 32, a permeable layer 33, a sliding groove 34, and a rotating sleeve 35. The lower middle outer shell 32 is a hollow cylindrical structure with an opening at the top. The bottom surface of the lower middle outer shell 32 is fixedly connected to the inner wall of the bottom surface of the lower outer shell 22. The inner side of the lower middle outer shell 32 is provided with internal threads. The lower middle outer shell 32 is a cylindrical pipe structure. The outer side of the upper middle outer shell 31 is provided with external threads. The upper middle outer shell 31 and the lower middle outer shell 32 are connected by threads.
[0039] Further, in the above technical solution, the upper top surface of the middle layer upper outer shell 31 is provided with a sliding groove 34, the outer surface of the middle layer upper outer shell 31 is provided with a rectangular through hole, the rotating sleeve shell 35 penetrates through the sliding groove 34 and is in sliding connection with the sliding groove 34, the rotating sleeve shell 35 is a cylindrical sleeve structure without a lower bottom surface, and the surface of the rotating sleeve shell 35 is uniformly distributed with three permeation layers 33.
[0040] The rotating sleeve shell 35 is positioned in the sliding groove 34 by relying on friction.
[0041] Further, in the above technical solution, the permeation layer 33 is matched with the rectangular through hole on the surface of the middle layer lower outer shell 32.
[0042] Further, in the above technical solution, the inner layer 40 is made of polytetrafluoroethylene, and the inner surface of the inner layer 40 is covered with a flexible conductive film.
[0043] Further, in the above technical solution, the inner layer 40 is a hollow cylindrical shell structure, the inner layer 40 is divided into upper and lower parts, the upper and lower parts are connected through magnetic attraction, the inner layer 40 is fixedly connected with the lower bottom surface of the middle layer lower outer shell 32, and the middle layer 30 and the inner layer 40 are filled with a bagged adsorbent.
[0044] Further, in the above technical solution, the outer layer 20, the middle layer 30 and the inner layer 40 are transparent structures.
[0045] The temperature sensor body senses temperature based on resistance change with temperature, the outer layer provides a physical barrier as the outermost layer, the outer layer is fixed with the middle layer, and together blocks the invasion of toxic gas in the external environment, and provides additional protection. The middle layer is the key to protection, and its material and structural design are used to control the penetration rate of toxic gas. By selectively blocking or slowing down the speed of toxic gas penetration inward, the concentration of toxic gas reaching the temperature sensor body is greatly reduced, thereby protecting the sensor from corrosion or interference. The inner layer mainly provides mechanical support and protection. The temperature sensor body is fixed in place through the clamping groove structure, preventing it from loosening or moving.
[0046] Specifically, the principle of the utility model is: the temperature sensor body senses temperature based on resistance change with temperature, the outer layer provides a physical barrier as the outermost layer, the outer layer is fixed with the middle layer, and together blocks the invasion of toxic gas in the external environment, and provides additional protection. The middle layer is the key to protection, and its material and structural design are used to control the penetration rate of toxic gas. By selectively blocking or slowing down the speed of toxic gas penetration inward, the concentration of toxic gas reaching the temperature sensor body is greatly reduced, thereby protecting the sensor from corrosion or interference. The inner layer mainly provides mechanical support and protection. The temperature sensor body is fixed in place through the clamping groove structure, preventing it from loosening or moving.
[0047] The above merely describes a specific implementation of the present application, but the scope of protection of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.
Claims
1. A protective layer structure for a temperature sensor of toxic gases, characterized in that, It includes a temperature sensor body, an outer layer, a middle layer, and an inner layer. The temperature sensor body is wrapped with a protective layer. The protective layer consists of an outer layer, a middle layer, and an inner layer from the inside out. The protective layer has a multi-layer nested structure. The outer layer is a detachable cylindrical structure. The outer layer is fixedly connected to the middle layer. The middle layer is used to control the permeation of toxic gases. The inner layer is used to fix and hold the temperature sensor body. The temperature sensor body is plugged into and detached from the slot inside the inner layer.
2. The protective layer structure for a temperature sensor of toxic gas according to claim 1, characterized in that, The outer layer is made of high-strength, lightweight polyamide composite material, and memory foam is filled between the outer and middle layers.
3. The protective layer structure for a temperature sensor of toxic gas according to claim 2, characterized in that, The outer layer includes an upper outer shell and a lower outer shell. A groove is provided on the top surface of the lower outer shell, and a protrusion is fixed on the bottom surface of the upper outer shell. The protrusion matches the groove, and the upper and lower outer shells are connected by magnetic attraction.
4. The protective layer structure for a temperature sensor of toxic gas according to claim 3, characterized in that, The middle layer is made of polyethylene and has a hollow cylindrical structure.
5. The protective layer structure for a temperature sensor of toxic gas according to claim 4, characterized in that, The middle layer includes an upper middle outer shell, a lower middle outer shell, a permeation layer, a chute, and a rotating shell. The lower middle outer shell is a hollow cylindrical structure with an opening at the top. The bottom surface of the lower middle outer shell is fixedly connected to the inner wall of the bottom surface of the lower outer shell. The inner side of the lower middle outer shell is provided with internal threads. The lower middle outer shell is a cylindrical pipe structure. The outer side of the upper middle outer shell is provided with external threads. The upper middle outer shell and the lower middle outer shell are connected by threads.
6. The protective layer structure for a temperature sensor of toxic gas according to claim 5, characterized in that, A groove is provided on the top surface of the middle upper outer shell, and a rectangular through hole is provided on the outer surface of the middle upper outer shell. The rotating shell passes through the groove and is slidably connected to the groove. The rotating shell is a cylindrical sleeve structure without a bottom surface, and three permeable layers are evenly distributed on the surface of the rotating shell.
7. The protective layer structure for a temperature sensor of toxic gas according to claim 6, characterized in that, The permeation layer is adapted to the rectangular through-holes on the surface of the lower outer shell of the middle layer.
8. The protective layer structure for a temperature sensor of toxic gas according to claim 7, characterized in that, The inner layer is made of polytetrafluoroethylene, and the inner surface of the inner layer is covered with a flexible conductive film.
9. The protective layer structure for a temperature sensor of toxic gas according to claim 8, characterized in that, The inner layer is a hollow cylindrical shell structure, which is divided into upper and lower parts. The upper and lower parts are connected by magnetic attraction. The inner layer is fixedly connected to the bottom surface of the lower outer shell of the middle layer. The middle layer and the inner layer are filled with bagged adsorbent.
10. The protective layer structure for a temperature sensor of toxic gas according to claim 9, characterized in that, The outer, middle, and inner layers are all transparent.