Infrared gas detection gas chamber device convenient to disassemble

Abstract

The infrared gas detection gas chamber device convenient to disassemble comprises a detection gas chamber and supporting assemblies, the two ends of the detection gas chamber are connected with the two detachable supporting assemblies respectively, and the two ends of the detection gas chamber are provided with connecting parts communicated with the supporting assemblies. The supporting assembly is provided with a cavity used for containing a connecting part of the detection air chamber, the size of the connecting part is matched with that of the cavity so that the detection air chamber can be pushed out of the supporting assembly, and when the interior of the detection air chamber becomes dirty after long-term use, the detection air chamber is pushed out of the supporting assembly so that the detection air chamber can be pushed out of the supporting assembly. And the detection air chamber is cleaned, so that the service life of the detection air chamber is prolonged, and the maintenance cost of the machine is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas detection, and specifically relates to an infrared gas detection gas chamber device that is convenient for disassembly. Background Technique

[0002] NDIR is a traditional infrared gas analysis technology. It uses a filter or interferometer with a fixed wavelength to select the characteristic wavelength of the component to be measured, and then compares the transmittance difference between the reference beam and the characteristic wavelength to calculate the gas concentration. Currently, for the detection gas chambers of NDIR infrared detection devices on the market, to ensure a sealed structure, the fixed structures of the gas chamber, the sapphire lenses at both ends of the gas chamber, and the air outlets at both ends are bonded with glue to ensure the airtightness of the gas chamber during gas detection. If there is air leakage, the gas concentration cannot be accurately measured.

[0003] However, after long-term use, the inside of the detection gas chamber will become dirty. Especially for the infrared detection devices used in the carbon-13 breath test, because the sampling process is blowing air through the mouth, the detected gas collected contains a large amount of water vapor and gases with different components. Although the detection device is equipped with a water removal setting, it cannot completely remove the water vapor. The detection gas chamber will become dirty, resulting in a weakened infrared light reflection ability, a weakened signal received by the infrared detector, and the detection accuracy of the device will be affected. Moreover, the air outlet of the detection gas chamber is narrow, and the dirt inside the detection gas chamber cannot be cleaned out by alcohol cleaning. During the alcohol cleaning process, the bonded glue will be dissolved, resulting in the destruction of the airtightness of the detection gas chamber, thus causing air leakage and affecting the detection results. Therefore, when the device is repaired, only a new set of gas chamber structure components can be replaced. The existing detection gas chambers use gold-plated or nickel-plated detection gas chambers to increase the reflection intensity of infrared light. The price of gold-plated gas chambers is relatively high. Replacing a new set of gas chamber structure components will cause huge waste to the enterprise, increase the production and post-maintenance costs. Moreover, the gold-plating process also causes great pollution to the environment. Directly discarding the original device is also not conducive to environmental protection and causes great waste of resources. Content of the Utility Model

[0004] 1. Technical Problems to be Solved by the Utility Model

[0005] The purpose of the utility model is to solve the problem that the existing infrared gas detection gas chamber structure device is not convenient to clean.

[0006] 2. Technical Solution

[0007] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0008] An infrared gas detection chamber device that is easy to disassemble according to the present utility model includes a detection chamber and a support assembly. Two detachable support assemblies are respectively connected to both ends of the detection chamber. Connection parts are provided at both ends of the detection chamber and are communicated with the support assembly. The support assembly is provided with a cavity for accommodating the connection part of the detection chamber. The connection part and the cavity are adapted in size so that the detection chamber can be pushed out from the support assembly.

[0009] Preferably, the support assembly includes a support block and a chamber fixing block that are detachably connected. The chamber fixing block and the support block are sequentially sleeved on the outside of the detection chamber along the length direction of the detection chamber.

[0010] Preferably, a gas nozzle is provided on the support block, air holes are provided on the outer side walls at both ends of the detection chamber, and a gas passage is provided in the support block for communicating the gas nozzle with the air holes.

[0011] Preferably, the support block is provided with a through hole that communicates with the detection chamber, and the through hole is arranged in the length direction of the detection chamber.

[0012] Preferably, a sapphire lens is provided in the through hole, and the sapphire lens is configured such that the light outside the detection chamber can enter the center line position in the length direction of the detection chamber through the center point of the sapphire lens.

[0013] Preferably, a sealing ring is sleeved on the outside of the connection part of the detection chamber to form a seal between the connection part of the detection chamber and the cavity of the support assembly.

[0014] Preferably, the support block and the chamber fixing block are respectively provided with grooves for accommodating the sealing ring. The outer side wall of the sealing ring fits against the inner side wall of the groove, and the position of the groove is close to the gas nozzle.

[0015] Preferably, the chamber fixing block extends with legs perpendicular to both sides at one end of the detection chamber.

[0016] Preferably, the support block and the chamber fixing block are connected by screws.

[0017] 3. Beneficial effects

[0018] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0019] An infrared gas detection chamber device that is easy to disassemble according to the present utility model includes a detection chamber and a support assembly. Two detachable support assemblies are respectively connected to both ends of the detection chamber. Connection parts are provided at both ends of the detection chamber and communicate with the support assembly. The support assembly is provided with a cavity for accommodating the connection part of the detection chamber. The connection part and the cavity are adapted in size so that the detection chamber can be pushed out from the support assembly. When the detection chamber becomes dirty inside after long-term use, the detection chamber is pushed out from the support assembly for cleaning, thereby extending the service life of the detection chamber and reducing the machine maintenance cost. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of an infrared gas detection chamber device that is easy to disassemble according to the present utility model;

[0021] Figure 2 It is a front view of an infrared gas detection chamber device that is easy to disassemble according to the present utility model;

[0022] Figure 3 It is a top view of an infrared gas detection chamber device that is easy to disassemble according to the present utility model;

[0023] Figure 4 is Figure 3 a cross-sectional view of the device taken along the cutting line A-A.

[0024] Explanation of the reference numerals in the schematic diagram:

[0025] 100, detection chamber; 200, support assembly; 210, support block; 220, chamber fixing block; 221, leg; 230, sapphire lens; 240, groove; 300, air nozzle; 400, sealing ring. Detailed Embodiment

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] It should be noted that in the description and claims of this application and the above-mentioned drawings, terms such as "first" and "second" are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so as to implement the embodiments of this application described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0028] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0029] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0030] In addition, the terms "installed", "set", "provided with", "connected", "connected to", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] It should be noted that without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in combination with embodiments.

[0032] Embodiment 1

[0033] Refer to the attached Figures 1-4, an infrared gas detection chamber device that is easy to disassemble in this embodiment, includes a detection chamber 100 and a support assembly 200. Two detachable support assemblies 200 are respectively connected to both ends of the detection chamber 100. Connection parts are provided at both ends of the detection chamber 100 and communicate with the support assembly 200. The support assembly 200 is provided with a cavity for accommodating the connection parts of the detection chamber 100. The sizes of the connection parts and the cavity are adapted so that the detection chamber 100 can be pushed out from the support assembly 200. The inside of the detection chamber 100 is gold-plated or nickel-plated to enhance the reflection intensity of infrared light. When the detection chamber 100 has been used for a long time and gets dirty inside, the detection chamber 100 is pushed out from the support assembly 200, placed in an ultrasonic cleaner for cleaning, and then reinstalled for reuse, extending the service life of the detection chamber 100 and reducing the machine maintenance cost.

[0034] The support assembly 200 includes a support block 210 and a chamber fixing block 220 that are detachably connected, preferably connected by screws. The chamber fixing block 220 and the support block 210 are sequentially sleeved on the outside of the detection chamber 100 along the length direction of the detection chamber 100. The chamber fixing block 220 extends with legs 221 perpendicular to one end of the detection chamber 100 and extending to both sides. The legs 221 are used to connect the infrared gas detection chamber structure device to other equipment to fix the infrared gas detection chamber structure device.

[0035] A gas nozzle 300 is provided on the support block 210. Air holes are provided on the outer side walls at both ends of the detection chamber 100. A gas passage is provided inside the support block 210 to communicate the gas nozzle 300 with the air holes. When detecting, the gas to be detected enters the detection chamber 100 through the gas nozzle 300 for detection.

[0036] The support block 210 is provided with a through hole communicating with the detection chamber 100. The through hole is arranged in the length direction of the detection chamber 100. A sapphire lens 230 is provided in the through hole. The sapphire lens 230 is configured such that the outside light of the detection chamber 100 can pass through the center point of the sapphire lens 230 and enter the center line position in the length direction of the detection chamber 100. When detecting gas, infrared light shines on the center point of the sapphire lens 230 and enters the inside of the detection chamber 100. The gas to be detected absorbs infrared light of a specific wavelength, and the concentration of the gas to be detected is calculated by the change in the light intensity of the infrared light. Different gas molecules have the characteristic of selectively absorbing infrared light of different wavelengths, which enables the infrared gas detection chamber structure device to identify different gas components and their concentrations.

[0037] A sealing ring 400 is sleeved outside the connecting part of the detection air chamber 100 to form a seal between the connecting part of the detection air chamber 100 and the cavity of the support assembly 200. The support block 210 and the air chamber fixing block 220 are respectively provided with grooves 240 to accommodate the sealing ring 400. The outer side wall of the sealing ring 400 fits against the inner side wall of the groove 240. The position of the groove 240 is close to the air nozzle 300. When the gas to be detected enters the detection air chamber 100 from the air nozzle 300, the sealing ring 400 can reduce the leakage of the gas to be detected and ensure the seal of the cavity.

[0038] When the detection air chamber 100 becomes dirty inside after long-term use, the detection air chamber 100 is pushed out of the support assembly 200, placed in an ultrasonic cleaner for cleaning, and then reinstalled for use to extend the service life of the detection air chamber 100. When a component of the infrared gas detection air chamber structure device is damaged, the infrared gas detection air chamber structure device can be disassembled, the damaged component can be replaced, and then reassembled for use to reduce the machine maintenance cost.

[0039] The above embodiments only represent a certain implementation manner of the present invention, and its description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention; therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An infrared gas detection chamber device that is easy to disassemble, characterized in that: It includes a detection gas chamber (100) and a support component (200). Two detachable support components (200) are respectively connected to both ends of the detection gas chamber (100). Connection parts are provided at both ends of the detection gas chamber (100) to communicate with the support component (200). The support component (200) is provided with a cavity for accommodating the connection parts of the detection gas chamber (100). The sizes of the connection parts and the cavity are adapted to enable the detection gas chamber (100) to be pushed out from the support component (200).

2. The infrared gas detection chamber device that is easy to disassemble according to claim 1, characterized in that: The support component (200) includes a support block (210) and a gas chamber fixing block (220) that are detachably connected. The gas chamber fixing block (220) and the support block (210) are sequentially sleeved on the outer side of the detection gas chamber (100) along the length direction of the detection gas chamber (100).

3. The infrared gas detection chamber device that is easy to disassemble according to claim 2, characterized in that: A gas nozzle (300) is provided on the support block (210). Air holes are provided on the outer side walls at both ends of the detection gas chamber (100). A gas passage is provided in the support block (210) to communicate the gas nozzle (300) with the air holes.

4. The infrared gas detection chamber device that is easy to disassemble according to claim 3, wherein: The support block (210) is provided with a through hole communicating with the detection gas chamber (100). The through hole is arranged in the length direction of the detection gas chamber (100).

5. The infrared gas detection chamber device that is easy to disassemble according to claim 4, wherein: A sapphire lens (230) is provided in the through hole. The sapphire lens (230) is configured such that the light outside the detection gas chamber (100) can enter the center line position in the length direction of the detection gas chamber (100) through the center point of the sapphire lens (230).

6. The infrared gas detection chamber device that is easy to disassemble according to claim 5, wherein: A sealing ring (400) is sleeved on the outer side of the connection part of the detection gas chamber (100) to form a seal between the connection part of the detection gas chamber (100) and the cavity of the support component (200).

7. The infrared gas detection chamber device which is easy to disassemble according to claim 6, characterized in that: The support block (210) and the gas chamber fixing block (220) are respectively provided with grooves (240) to accommodate the sealing ring (400). The outer side wall of the sealing ring (400) fits against the inner side wall of the groove (240). The position of the groove (240) is close to the gas nozzle (300).

8. The infrared gas detection chamber device that is easy to disassemble according to claim 7, characterized in that: The gas chamber fixing block (220) extends with legs (221) perpendicular to one end of the detection gas chamber (100) towards both sides.

9. The infrared gas detection chamber device that is easy to disassemble according to claim 8, wherein: The support block (210) and the gas chamber fixing block (220) are connected by screws.

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