CN220854790U - Gas path sealing type gas detector - Google Patents
Gas path sealing type gas detector Download PDFInfo
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- CN220854790U CN220854790U CN202321985930.8U CN202321985930U CN220854790U CN 220854790 U CN220854790 U CN 220854790U CN 202321985930 U CN202321985930 U CN 202321985930U CN 220854790 U CN220854790 U CN 220854790U
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- explosion
- gas detection
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- 238000007789 sealing Methods 0.000 title claims abstract description 53
- 238000001514 detection method Methods 0.000 claims abstract description 70
- 238000004880 explosion Methods 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Abstract
The application relates to a gas circuit sealing type gas detector, comprising: the sensor body, sensor staving and sealing washer, inside cavity of sensor staving, the reservation is placed the space of predetermineeing of sensor body, and sensor staving one end opening is the gas detection passageway, the sensor body sets up in predetermineeing the space, leave first clearance with the inboard of sensor staving, one side of sensor body is the detection end, the detection end corresponds with the gas detection passageway, and annular seal groove has been seted up to the detection end, the sealing washer is O type sealing washer, inlay and establish in the seal groove, fill the seal groove, isolated gas detection passageway and first clearance, make the gas that is surveyed can not be through the inside dissipation all around of first clearance to the sensor staving, promote gas detection sensor's detection sensitivity, and detect the response time of leaking gas.
Description
Technical Field
The application relates to the technical field, in particular to a gas path sealing type gas detector.
Background
The sensor is a detecting device, which can sense the information of the detected gas and convert the sensed information into electric signals or other information output in a required form according to a certain rule so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like. In the field of gas detectors, the sensor is used as a core component of the device, and in the detection process, detected gas enters the sensor barrel body and then enters the sensor.
However, in the prior art, in order to facilitate the installation of the sensor and the sensor housing, the inner space of the sensor housing is larger than the sensor, resulting in dissipation from the gap where the detection gas may enter between the sensor and the sensor housing, affecting the detection sensitivity of the gas detector, and delaying the response time for detecting the leakage gas.
Disclosure of utility model
In view of the above, the present application provides a gas path sealed gas detector, which avoids the detection gas from entering the gap between the sensor and the sensor housing.
According to an aspect of the present application, there is provided a gas path sealed gas detector comprising: the sensor comprises a sensor main body, a sensor barrel body and a sealing ring;
The sensor barrel body is hollow, a preset space for placing the sensor main body is reserved, and an opening at one end of the sensor barrel body is a gas detection channel;
The sensor main body is arranged in the preset space, a first gap is reserved between the sensor main body and the inner side of the sensor barrel body, one side of the sensor main body is a detection end, the detection end corresponds to the gas detection channel, and the detection end is provided with an annular sealing groove;
The sealing ring is an O-shaped sealing ring, is matched with the sealing groove, is embedded in the sealing groove and isolates the gas detection channel from the first gap.
In one possible implementation manner, the whole preset space is in a convex structure, the smaller end of the preset empty break section is the gas detection channel, and the larger end of the break section is the sensor placement space.
In one possible implementation, the sensor body is a columnar structure;
The gas detection channel is a circular hole;
The sensor body, the gas detection channel and the sealing groove are coaxially arranged, and the cross-sectional area of the sealing groove is larger than that of the gas detection channel.
In one possible implementation, the depth of the seal groove is in the interval 1.5mm-1.7 mm;
The first gap is within the interval of 0.8mm-1.1 mm;
The diameter of the cross section of the sealing ring is within the range of 2.5mm-3.0 mm.
In one possible implementation manner, the cross section of the sealing groove is square, and the length and the width of the cross section of the sealing groove are smaller than the diameter of the cross section of the sealing ring.
In one possible implementation, the sealing ring is made of rubber.
In one possible implementation, the method further includes: a fixing member;
A fixing hole is formed in one side, away from the gas detection channel, of the sensor barrel body;
The fixing piece is of a columnar structure and is matched with the fixing hole; and is also provided with
One end of the fixing piece in the length direction is fixedly connected with the sensor main body, and the other end of the fixing piece is embedded in the fixing hole.
In one possible implementation, the sensor body includes: a sensor housing, a sensing device and a sensor cover;
the sensor shell is of a hollow barrel-shaped structure, and one end of the sensor shell is open;
The sensing device is arranged inside the sensor shell;
The sensor cover is of an annular structure, is arranged at the opening position of the sensor shell and is welded in an ultrasonic mode, and the sensor cover is opposite to the gas detection channel.
In one possible implementation, the method further includes: explosion-proof sheets;
The gas detection channel faces to the direction of the sensor placement space and is provided with an explosion-proof piece mounting groove;
the explosion isolation sheet is embedded in the explosion isolation sheet mounting groove.
In one possible implementation, the method further includes: explosion-proof sheet compression ring;
The explosion-proof sheet compression ring is of an annular structure;
The explosion isolation sheet compression ring is arranged in the bolt connection of the explosion isolation sheet mounting groove and is in close fit with the explosion isolation sheet.
The gas circuit sealing type gas detector provided by the embodiment of the application has the beneficial effects that: the sealing groove with the annular structure is formed in the detection end of the sensor body, and the sealing ring is embedded in the sealing groove to isolate the gas detection channel of the sensor barrel body and the first gap reserved between the sensor barrel body and the sensor body. So, when the gas to be detected gets into the sensor staving, the first clearance that leaves between sensor staving and the sensor lid is filled by the sealing washer of O type structure, after the sensor of installing, compresses tightly the sealing washer deformation in first clearance, makes the gas to be detected can not escape all around to the inside of sensor staving through first clearance, promotes gas detection sensor's detection sensitivity to and detect the response time of leaking gas.
Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic cross-sectional view of a main structure of a gas path sealed gas detector according to an embodiment of the present application.
Detailed Description
Various exemplary embodiments, features and aspects of the application will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
It should be understood, however, that the terms "center," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, well known methods, procedures, components, and circuits have not been described in detail so as not to obscure the present application.
Fig. 1 shows a schematic cross-sectional view of a body structure according to an embodiment of the application. As shown in fig. 1, the gas path sealed gas detector according to the embodiment of the present application includes: the sensor body 100, the sensor cartridge 200, and the sealing ring 300. The sensor barrel body 200 is hollow, a preset space for placing the sensor main body 100 is reserved, an opening at one end of the sensor barrel body 200 is a gas detection channel, the sensor main body 100 is arranged in the preset space, a first gap is reserved between the sensor main body 100 and the inner side of the sensor barrel body 200, one side of the sensor main body 100 is a detection end, the detection end corresponds to the gas detection channel, an annular sealing groove is formed in the detection end, the sealing ring 300 is an O-shaped sealing ring 300 and is matched with the sealing groove, and the sealing ring 300 is embedded in the sealing groove to isolate the gas detection channel from the first gap.
Thus, the gas detection passage of the sensor tub 200 and the first gap left between the sensor tub 200 and the sensor main body 100 are isolated by providing the seal groove having the annular structure at the detection end of the sensor main body 100 and embedding the seal ring 300 inside the seal groove. Thus, when the detected gas enters the sensor barrel body 200, a first gap reserved between the sensor barrel body 200 and the sensor cover 110 is filled with the sealing ring 300 with the O-shaped structure, and after the sensor is installed, the sealing ring 300 is tightly pressed and deformed in the first gap, so that the detected gas cannot escape to the periphery of the inside of the sensor barrel body 200 through the first gap, the detection sensitivity of the gas detection sensor is improved, and the response time of detecting the leaked gas is prolonged.
In a specific embodiment, the preset space of the sensor barrel 200 is in a convex structure, and comprises a gas detection channel and a sensor placement space, wherein the gas detection channel is communicated with the sensor placement space, the smaller end of the cross section of the preset space is the gas detection channel, the larger end of the cross section of the preset space is the sensor placement space, and the sensor main body 100 is arranged in the sensor placement space.
In this embodiment, the sensor body 100 is in a cylindrical structure, the gas detection channel is a circular hole, and the sealing ring 300 is in an annular structure, so that the sensor body 100, the gas detection channel and the sealing groove are coaxially arranged, the sensor body 100 is convenient to install inside the sensor barrel 200, and the detection gas can directly enter the sensor body 100 through the gas detection channel.
In a specific embodiment, for the error of the whole device in manufacturing, the depth of the sealing groove is within the interval of 1.5mm-1.7mm, the first gap is within the interval of 0.8mm-1.1mm, and the diameter of the broken section of the sealing ring 300 is within the interval of 2.5mm-3.0mm, so that the sealing ring 300 can be tightly adhered to the sealing groove and the inner wall of the sensor barrel body 200 respectively, and the detection gas cannot enter the gap between the sensor body 100 and the sensor barrel body 200, so that the passage of the detection gas is reduced, and the detection gas can directly enter the sensor body 100 for detection.
In this embodiment, the seal groove is annular in cross section and square in cross section, and the length and width of the seal groove cross section are smaller than the cross section diameter of seal ring 300. In this way, when the sensor body 100 is mounted inside the sensor tub 200, the squeeze seal 300 is deformed, thereby further improving the overall sealability.
The sealing ring 300 is made of rubber, the rubber is made of high polymer material with precious elasticity, the temperature range is wide, small stress is given in different media, large deformation can be generated, the deformation can provide contact pressure, leakage clearance is compensated, and the sealing purpose is achieved.
In a specific embodiment, the method further comprises: and a fixing member for mounting and fixing the sensor body 100 and the sensor tub 200. Specifically, a fixing hole is formed in one side, far away from the gas detection channel, of the sensor barrel 200, the fixing piece is of a columnar structure, the fixing piece is matched with the fixing hole, one end of the fixing piece, which is square in length, is fixedly connected with the sensor main body 100, and the other end of the fixing piece is embedded in the fixing hole to fix the sensor main body 100.
In one embodiment, the sensor body 100 includes: the sensor cover 110 is of an annular structure, is arranged at the opening position of the sensor housing 120, and is opposite to the gas detection channel, and the sensor cover 110 is in butt fusion with the gas detection channel.
In a specific embodiment, the method further comprises: and a rupture disc 300. And the gas detection channel is provided with a flameproof sheet mounting groove in the direction of the sensor placement space, and the flameproof sheet mounting groove is used for placing the flameproof sheet mounting groove. Specifically, the explosion-proof sheet 300 is matched with the explosion-proof sheet mounting groove and is placed in the explosion-proof sheet mounting groove, so that an explosion-proof effect is achieved, and the safety requirement of the gas detection sensor in the gas detection field is met.
In this specific embodiment, further comprising: the rupture disc clamp ring 400. The explosion proof sheet compression ring 400 has an annular structure, is arranged in the explosion proof sheet mounting groove, is connected with the explosion proof sheet mounting groove through bolts or is connected with the explosion proof sheet mounting groove in an embedded mode, and fixes the explosion proof sheet 300 in the gas detection channel.
The foregoing description of embodiments of the application has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A gas path sealed gas detector, comprising: the sensor comprises a sensor main body, a sensor barrel body and a sealing ring;
The sensor barrel body is hollow, a preset space for placing the sensor main body is reserved, and an opening at one end of the sensor barrel body is a gas detection channel;
The sensor main body is arranged in the preset space, a first gap is reserved between the sensor main body and the inner side of the sensor barrel body, one side of the sensor main body is a detection end, the detection end corresponds to the gas detection channel, and the detection end is provided with an annular sealing groove;
The sealing ring is an O-shaped sealing ring, is matched with the sealing groove, is embedded in the sealing groove and isolates the gas detection channel from the first gap.
2. The gas circuit sealed gas detector according to claim 1, wherein the whole of the preset space is in a convex structure, the smaller end of the preset empty break section is the gas detection channel, and the larger end of the break section is the sensor placement space.
3. The gas circuit sealed gas detector according to claim 2, wherein the sensor body is of a columnar structure;
The gas detection channel is a circular hole;
The sensor body, the gas detection channel and the sealing groove are coaxially arranged, and the cross-sectional area of the sealing groove is larger than that of the gas detection channel.
4. The gas circuit sealed gas detector of claim 1, wherein the depth of the seal groove is in the interval of 1.5mm-1.7 mm;
The first gap is within the interval of 0.8mm-1.1 mm;
The diameter of the cross section of the sealing ring is within the range of 2.5mm-3.0 mm.
5. The gas circuit sealed gas detector according to claim 4, wherein the seal groove has a square cross section, and the seal groove has a cross section length and width smaller than the seal ring cross section diameter.
6. A gas path sealed gas detector according to claim 5, wherein the sealing ring is made of rubber.
7. The gas circuit sealed gas detector of claim 1, further comprising: a fixing member;
A fixing hole is formed in one side, away from the gas detection channel, of the sensor barrel body;
The fixing piece is of a columnar structure and is matched with the fixing hole; and is also provided with
One end of the fixing piece in the length direction is fixedly connected with the sensor main body, and the other end of the fixing piece is embedded in the fixing hole.
8. The gas circuit sealed gas detector according to any one of claims 1-7, wherein the sensor body comprises: a sensor housing, a sensing device and a sensor cover;
the sensor shell is of a hollow barrel-shaped structure, and one end of the sensor shell is open;
The sensing device is arranged inside the sensor shell;
The sensor cover is of an annular structure, is arranged at the opening position of the sensor shell and is welded in an ultrasonic mode, and the sensor cover is opposite to the gas detection channel.
9. The gas circuit sealed gas detector of claim 2, further comprising: explosion-proof sheets;
The gas detection channel faces to the direction of the sensor placement space and is provided with an explosion-proof piece mounting groove;
the explosion isolation sheet is embedded in the explosion isolation sheet mounting groove.
10. The gas circuit sealed gas detector of claim 8, further comprising: explosion-proof sheet compression ring;
The explosion-proof sheet compression ring is of an annular structure;
The explosion isolation sheet compression ring is arranged in the bolt connection of the explosion isolation sheet mounting groove and is in close fit with the explosion isolation sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321985930.8U CN220854790U (en) | 2023-07-26 | 2023-07-26 | Gas path sealing type gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321985930.8U CN220854790U (en) | 2023-07-26 | 2023-07-26 | Gas path sealing type gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220854790U true CN220854790U (en) | 2024-04-26 |
Family
ID=90771641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321985930.8U Active CN220854790U (en) | 2023-07-26 | 2023-07-26 | Gas path sealing type gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220854790U (en) |
-
2023
- 2023-07-26 CN CN202321985930.8U patent/CN220854790U/en active Active
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