CN214150642U - Gas detection device - Google Patents

Abstract

The embodiment of the application discloses gaseous detection device, this gaseous detection device include inlet duct, give vent to anger pipeline, air chamber, gas sensor and accuse temperature subassembly, inlet duct with give vent to anger the pipeline respectively with the air chamber intercommunication, gas sensor set up in the air chamber, accuse temperature subassembly set up in gaseous detection device is close to one side of inlet duct, gaseous detection device is including the first base member and the second base member of cooperation installation, accuse temperature subassembly set up in first base member, the air chamber with gas sensor set up in the second base member. This scheme can carry out temperature control to gas sensor through accuse temperature subassembly for gas sensor's constancy of temperature does not receive external disturbance, thereby improves gas detection's accuracy.

Description

Gas detection device

Technical Field

The application relates to the technical field of gas detection, in particular to a gas detection device.

Background

In the gas detection field, because gas sensor's temperature stability is relatively poor, gas sensor's detection data receives external temperature influence great, leads to gas detection's stability and accuracy to be lower.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a gas detection device, can improve gas detection's accuracy.

The embodiment of the application provides a gas detection device, including inlet line, the pipeline of giving vent to anger, air chamber, gas sensor and accuse temperature subassembly, the inlet line with the pipeline of giving vent to anger respectively with the air chamber intercommunication, gas sensor set up in the air chamber, accuse temperature subassembly set up in gas detection device is close to one side of inlet line, gas detection device is including the first base member and the second base member of cooperation installation, accuse temperature subassembly set up in first base member, the air chamber with gas sensor set up in the second base member.

In the gas detection device that this application embodiment provided, accuse temperature subassembly includes temperature sensor, semiconductor refrigeration piece and accuse temperature mainboard, temperature sensor set up in the first base member, semiconductor refrigeration piece set up in the first base member outside, and laminate in first base member is close to admission line's lateral wall, accuse temperature mainboard electricity respectively connect in temperature sensor with semiconductor refrigeration piece.

In the gas detection device provided by the embodiment of the application, the heat dissipation component is a heat dissipation fin, a fan or a water cooling device.

In the gas detection device provided by the embodiment of the application, a heat dissipation assembly is arranged on one side, away from the side wall of the first base body, of the semiconductor refrigeration sheet.

In the gas detection device provided by the embodiment of the application, the gas inlet pipeline comprises a first sub gas inlet pipe arranged on the first base body and a second sub gas inlet pipe arranged on the second base body, the first sub gas inlet pipe is communicated with the second sub gas inlet pipe, and the second sub gas inlet pipe is communicated with the gas chamber;

the air outlet pipeline comprises a first sub air outlet pipe arranged on the first base body and a second sub air outlet pipe arranged on the second base body, the first sub air outlet pipe is communicated with the second sub air outlet pipe, and the second sub air outlet pipe is communicated with the air chamber.

In the gas detection device provided by the embodiment of the application, the first sub gas inlet pipe is sleeved on the second sub gas inlet pipe, and the first sub gas outlet pipe is sleeved on the second sub gas outlet pipe.

In the gas detection device that this application embodiment provided, first sub-intake pipe with be provided with the sealing washer between the sub-intake pipe of second, the sub-outlet duct of second with be provided with the sealing washer between the sub-outlet duct of second.

In the gas detection device provided by the embodiment of the application, the gas chamber protrudes out of the second base body, the first base body is provided with a groove, and the groove is used for accommodating the gas chamber.

In the gas detection device provided by the embodiment of the present application, the material of the first substrate and the second substrate includes an aluminum alloy.

In the gas detection device provided by the embodiment of the application, the diameters of the gas inlet pipeline and the gas outlet pipeline are 1 mm-5 mm.

The embodiment of the application provides a gaseous detection device includes inlet duct, pipeline, air chamber, gas sensor and accuse temperature subassembly of giving vent to anger, inlet duct with the pipeline of giving vent to anger respectively with the air chamber intercommunication, gas sensor set up in the air chamber, accuse temperature subassembly set up in gaseous detection device is close to one side of inlet duct, gaseous detection device is including the first base member and the second base member of cooperation installation, accuse temperature subassembly set up in first base member, the air chamber with gas sensor set up in the second base member. This scheme can carry out temperature control to gas sensor through accuse temperature subassembly for gas sensor's constancy of temperature does not receive external disturbance, thereby improves gas detection's accuracy.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a gas detection apparatus according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In addition, the technical features mentioned in the different embodiments of the present application can be combined with each other as long as they do not conflict with each other.

The embodiment of the present application provides a gas detection apparatus, which will be described in detail below.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a gas detection apparatus according to an embodiment of the present disclosure. The gas detection apparatus 100 may include an inlet duct 11, an outlet duct 12, a gas chamber 13, a gas sensor 14, and a temperature control assembly 15. Wherein, the air inlet pipeline 11 and the air outlet pipeline 12 are respectively communicated with the air chamber 13. The gas sensor 14 is disposed in the gas chamber 13. The temperature control assembly 15 is disposed on a side of the gas detection device 100 close to the gas inlet duct 11.

In the embodiment of the present application, the gas detection apparatus 100 may include a first base 1 and a second base 2 that are fitted. Wherein, the temperature control assembly 15 is disposed on the first substrate 1. A gas chamber 13 and a gas sensor 14 are provided to the second substrate 2.

The intake duct 11 may include a first sub-intake pipe 111 disposed on the first base 1 and a second sub-intake pipe 111 disposed on the second base 2. The first sub-intake pipe 111 communicates with the second sub-intake pipe 112. The second sub-intake pipe 112 communicates with the air chamber 13.

The outlet pipe 12 may include a first sub-outlet pipe 121 disposed on the first substrate 1 and a second sub-outlet pipe 122 disposed on the second substrate 2. The first sub-outlet pipe 121 is communicated with the second sub-outlet pipe 122. The second sub-outlet pipe 122 is communicated with the air chamber 13.

In some embodiments, the first sub-inlet pipe 111 may be sleeved to the second sub-inlet pipe 112. The first sub-outlet pipe 121 may be sleeved on the second sub-outlet pipe 122.

In some embodiments, a sealing ring may be disposed between the first sub-inlet pipe 111 and the second sub-inlet pipe 112. A sealing ring may be disposed between the first sub-outlet pipe 121 and the second sub-outlet pipe 122. The sealing washer can be when first base member 1 and the cooperation installation of second base member 2, play the sealed effect to the junction of first sub-intake pipe 111 and the sub-intake pipe 112 of second and the junction of first sub-outlet duct 121 and the sub-outlet duct 122 of second, avoid waiting to detect gas leakage.

In the embodiment of the present application, the temperature control assembly 15 may include a temperature sensor 151, a semiconductor cooling plate 152, and a temperature control main board 153. Wherein the temperature sensor 151 is disposed within the first substrate 1. The semiconductor cooling plate 152 is disposed outside the first substrate 1 and attached to a sidewall of the first substrate 1 close to the air inlet duct 11. The temperature control main board 153 is electrically connected to the temperature sensor 151 and the semiconductor cooling plate 152, respectively.

In some embodiments, a heat dissipation assembly is disposed on a side of the semiconductor chilling plate 152 away from the side wall of the first substrate 1 to dissipate heat from the semiconductor chilling plate 152. The heat dissipation component can be a heat dissipation fin, a fan or a water cooling device and the like.

In some embodiments, the semiconductor cooling plate 152 and the temperature-controlled motherboard 153 may be integrally formed.

In some embodiments, the air chamber 13 may protrude from the second substrate 2. At this time, the first base 1 is provided with a groove 16 corresponding to the convex portion of the air cell 13. The recess 16 is used to accommodate the protruding portion of the air cell 13 when the first substrate 1 and the second substrate 2 are fitted.

In this application embodiment, wait to detect gaseous from the admission line 11 entering, temperature sensor 151 detects the current temperature of base member 1 to send the current temperature of base member 1 to accuse temperature mainboard 153, accuse temperature mainboard 153 compares the current temperature of base member 1 with the target temperature, and controls the semiconductor refrigeration piece according to the comparative result and heats or cool down base member 1, makes the temperature of base member 1 reach the target temperature, thereby makes the constancy of temperature of base member 1.

It will be appreciated that the gas chamber 13 and the gas sensor 14 are provided in the second substrate 2. Therefore, to reduce the influence of the outside temperature on the gas sensor 14, it is necessary that the temperature of the second substrate 2 is also in a constant state.

In some embodiments, the first substrate 1 and the second substrate 2 may be formed of a material having a high thermal conductivity. For example, an aluminum alloy, so that the first substrate 1 and the second substrate 2 can be subjected to rapid heat transfer, so that the temperature of the first substrate 1 is the same as that of the second substrate 2, and the temperature of the gas sensor 14 is consistent with that of the first substrate 1 and that of the second substrate 2.

In some embodiments, the diameter of inlet duct 11 and outlet duct 12 may be between 1 mm and 5 mm. The gas inlet pipeline 11 and the gas outlet pipeline 12 with small diameters can be used for realizing the temperature pre-control of the gas to be detected, and the temperature of the gas to be detected is prevented from causing large loss in the transmission process, so that the temperature of the gas to be detected is greatly different from the temperature of the gas sensor 14.

The gas detection device 100 provided by the embodiment of the application comprises an air inlet pipeline 11, an air outlet pipeline 12, a gas chamber 13, a gas sensor 14 and a temperature control assembly 15. Wherein, the air inlet pipeline 11 and the air outlet pipeline 12 are respectively communicated with the air chamber 13. The gas sensor 14 is disposed in the gas chamber 13. The gas detection device 100 comprises a first base body 1 and a second base body 2 which are installed in a matching mode, a temperature control assembly 15 is arranged on the first base body 1, and a gas chamber 13 and a gas sensor 14 are arranged on the second base body 2. This scheme can carry out temperature control to gas sensor 14 through accuse temperature subassembly 15 for gas sensor 14's constancy of temperature does not receive external disturbance, thereby improves gas detection's accuracy and stability.

The gas detection device provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiment is only used to help understand the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. The utility model provides a gas detection device, its characterized in that includes inlet line, the pipeline of giving vent to anger, air chamber, gas sensor and accuse temperature subassembly, inlet line with the pipeline of giving vent to anger respectively with the air chamber intercommunication, gas sensor set up in the air chamber, gas detection device is including the first base member and the second base member of cooperation installation, accuse temperature subassembly set up in first base member, the air chamber with gas sensor set up in the second base member.

2. The gas detection device according to claim 1, wherein the temperature control assembly includes a temperature sensor, a semiconductor refrigeration sheet, and a temperature control main board, the temperature sensor is disposed in the first substrate, the semiconductor refrigeration sheet is disposed outside the first substrate and attached to a side wall of the first substrate close to the air inlet duct, and the temperature control main board is electrically connected to the temperature sensor and the semiconductor refrigeration sheet, respectively.

3. The gas detection apparatus of claim 2, wherein a side of the semiconductor chilling plate distal from the first substrate side wall is provided with a heat sink assembly.

4. The gas detection apparatus of claim 3, wherein the heat dissipation assembly is a heat sink, a fan, or a water cooling device.

5. The gas detection apparatus according to claim 1, wherein the intake duct includes a first sub intake pipe provided to the first base body and a second sub intake pipe provided to the second base body, the first sub intake pipe communicating with the second sub intake pipe, the second sub intake pipe communicating with the gas chamber;

the air outlet pipeline comprises a first sub air outlet pipe arranged on the first base body and a second sub air outlet pipe arranged on the second base body, the first sub air outlet pipe is communicated with the second sub air outlet pipe, and the second sub air outlet pipe is communicated with the air chamber.

6. The gas detection device of claim 5, wherein the first sub inlet pipe is sleeved to the second sub inlet pipe, and the first sub outlet pipe is sleeved to the second sub outlet pipe.

7. The gas detection apparatus according to claim 5 or 6, wherein a sealing ring is disposed between the first sub gas inlet pipe and the second sub gas inlet pipe, and a sealing ring is disposed between the second sub gas outlet pipe and the second sub gas outlet pipe.

8. The gas sensing device of claim 1, wherein the gas chamber protrudes from the second base, and the first base is provided with a recess for receiving the gas chamber.

9. The gas detection apparatus of claim 1, wherein the material of the first substrate and the second substrate comprises an aluminum alloy.

10. The gas sensing device of claim 1, wherein the inlet conduit and the outlet conduit have a diameter of 1 mm to 5 mm.

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