CN216594037U - Residential natural gas leakage detection device based on pressure change recognition technology - Google Patents
Residential natural gas leakage detection device based on pressure change recognition technology Download PDFInfo
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- CN216594037U CN216594037U CN202122479538.3U CN202122479538U CN216594037U CN 216594037 U CN216594037 U CN 216594037U CN 202122479538 U CN202122479538 U CN 202122479538U CN 216594037 U CN216594037 U CN 216594037U
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Abstract
The utility model discloses a residential natural gas leakage detection device based on a pressure change identification technology, which comprises a shell, a pressure sensor, a battery and a circuit board, wherein the left half part of the shell is provided with a pressure introduction hole communicated with the outside, the right half part of the shell is provided with a mounting cavity communicated with the pressure introduction hole, the pressure sensor, the battery and the circuit board are all fixed in the mounting cavity of the shell, one end of the pressure sensor is fixed at the junction of the pressure introduction hole and the mounting cavity of the shell, the other end of the pressure sensor is electrically connected with the circuit board, and the circuit board is electrically connected with the battery. The sealing device has the advantages of small volume, simple structure, low manufacturing cost, good sealing performance, high strength, impact resistance, corrosion resistance and long service life.
Description
Technical Field
The utility model relates to the technical field of gas leakage detection, in particular to a residential natural gas leakage detection device based on a pressure change identification technology.
Background
At present, a common indoor leakage alarm device is a combustible gas leakage alarm, the indoor combustible gas leakage alarm can detect the indoor fuel gas concentration, when the concentration reaches an alarm threshold value, through sound and light alarm, partial models of products have a remote communication function, and alarm information can be sent to maintenance personnel. However, the product adopts a semiconductor sensor, is easily interfered by components such as alcohol, acetic acid, steam and the like in the air, has larger drift and failure probability, and has more cases of false alarm and failure. And this product needs the gas to leak the diffusion and can detect after reaching certain degree in indoor, and this product sensor production technology is comparatively complicated, and manufacturing cost is high. There is also a leakage recognition technology based on a gas meter, which judges whether there is a leakage in a gas pipe by displaying a flow rate to the gas meter. However, the method can only be used for specially-modified gas meters, and the gas meters can be used only through metering verification, so that the production cost is high. The existing pressure sensor manufactured based on the pressure change identification technology can measure gas pressure data, and is assisted with the existing mature communication technology to realize remote transmission of the gas pressure data, but the existing pressure sensor cannot be reasonably installed in a skid mode when applied to the technical field of gas leakage detection, so that installation and replacement are complex.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems of large volume, complex installation and short service life of the conventional gas pressure leakage detection device, the utility model innovatively provides a residential natural gas leakage detection device based on a pressure change identification technology, and the residential natural gas leakage detection device has the advantages of small volume, simple structure, low manufacturing cost, good sealing performance, high strength, impact resistance, corrosion resistance and long service life.
In order to achieve the technical purpose, the utility model discloses a residential natural gas leakage detection device based on a pressure change identification technology, which comprises a shell, a pressure sensor, a battery and a circuit board, wherein the left half part of the shell is provided with a pressure introduction hole communicated with the outside, the right half part of the shell is provided with an installation cavity communicated with the pressure introduction hole, the pressure sensor, the battery and the circuit board are all fixed in the installation cavity of the shell, one end of the pressure sensor is fixed at the junction of the pressure introduction hole and the installation cavity of the shell, the other end of the pressure sensor is electrically connected with the circuit board, and the circuit board is electrically connected with the battery.
Furthermore, the residential natural gas leakage detection device based on the pressure change identification technology is characterized in that the battery and the circuit board are arranged in the mounting cavity of the shell at an interval in an up-down parallel mode, and the space in the mounting cavity of the shell except for the pressure sensor, the battery and the circuit board is filled with pouring sealant.
Furthermore, the house natural gas leakage detection device based on the pressure change identification technology is characterized in that the shell is columnar, the left half part of the shell is a connecting part, the outer peripheral wall of the connecting part is provided with connecting threads, the right half part of the shell is an installation part, the connecting part and the installation part are integrally formed, the pressure introduction hole penetrates through the connecting part from left to right, and the installation cavity is formed in the installation part.
Furthermore, the utility model relates to a residential natural gas leakage detection device based on a pressure change identification technology, wherein the inner diameter of the pressure introduction hole is smaller than that of the installation cavity, so that an inner step surface is formed at the junction of the pressure introduction hole and the installation cavity by the connecting part and the installation part, and one end surface of the pressure sensor is pressed against the inner step surface.
Furthermore, the utility model relates to a residential natural gas leakage detection device based on a pressure change identification technology, wherein the outer diameter of the connecting part is smaller than that of the mounting part, so that an outer step surface is formed at the junction of the connecting part and the mounting part, a sealing groove is formed in the outer step surface, and a sealing ring is mounted in the sealing groove.
Furthermore, the utility model relates to a residential natural gas leakage detection device based on a pressure change identification technology, wherein a guide conical surface with the outer diameter gradually increasing from left to right is arranged at the left end of the connecting part.
Compared with the prior art, the residential natural gas leakage detection device based on the pressure change identification technology has the following differences: the pressure introducing hole communicated with the outside is formed in the left half part of the shell, the mounting cavity communicated with the pressure introducing hole is formed in the right half part of the shell, the pressure sensor, the battery and the circuit board are all fixed in the mounting cavity of the shell, one end of the pressure sensor is fixed at the junction of the pressure introducing hole of the shell and the mounting cavity, the other end of the pressure sensor is electrically connected with the circuit board, and the circuit board is electrically connected with the battery. In actual use, the left half part of the shell is connected with the three-way pipe fitting of the indoor gas pipe to complete installation, the manufacturing cost is low, the shell can be widely applied to indoor gas users, and meanwhile, the shell has the advantages of small size, simple structure, good sealing performance, high strength, impact resistance, corrosion resistance and long service life.
Drawings
FIG. 1 is a schematic structural diagram of a residential natural gas leakage detection device based on pressure change identification technology according to the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
Detailed Description
The present invention will be explained and explained in detail with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model discloses a residential natural gas leakage detection device based on a pressure change identification technology, which specifically comprises a shell 1, a pressure sensor 2, a battery 3 and a circuit board 4. The left half part of the shell 1 is provided with a pressure introduction hole 11 communicated with the outside, the right half part of the shell 1 is provided with a mounting cavity 12 communicated with the pressure introduction hole 11, the pressure sensor 2, the battery 3 and the circuit board 4 are all fixed in the mounting cavity 12 of the shell 1, one end of the pressure sensor 2 is fixed at the junction of the pressure introduction hole 11 of the shell 1 and the mounting cavity 12, the other end of the pressure sensor 2 is electrically connected with the circuit board 4, and the circuit board 4 is electrically connected with the battery 3. Since the circuit board 4 mainly comprises a signal amplifying and filtering module, a microcomputer module, a communication module, etc. as the prior art, the detailed connection structure thereof will not be described in detail herein.
The pressure sensor 2 is arranged in the mounting cavity 12 of the shell 1, a closed structure can be formed with a gas pipeline after the pressure sensor 2 is mounted, interference of components such as alcohol, acetic acid and steam in air can be eliminated, the production cost is low by arranging the pressure sensor 2, and the pressure sensor can be widely applied to indoor gas users, especially to a large number of residential users. In actual use, only the left half part of the shell 1 is connected with the three-way pipe fitting of the indoor gas pipe, and the installation is simple and convenient. When the gas flows through the leakage detection device, the pressure sensor 2 can transmit a pressure change signal to the circuit board 4 in real time, and according to the pressure change condition, the pressure value is compared with the pressure value when the normal gas appliance is used, whether the flow of the gas in the indoor pipeline is abnormal or not is judged, and then whether gas leakage occurs or not is judged. Therefore, the use safety of a gas user can be guaranteed to the maximum extent under the condition of paying lower economic cost, indoor gas leakage events can be found in time, indoor gas leakage can be found and maintained in time, and safety accidents such as deflagration, fire and the like caused by leakage are prevented.
On the basis of the above embodiment, the battery 3 and the circuit board 4 are arranged in the installation cavity 12 of the housing 1 at an interval in an up-down parallel manner, the space in the installation cavity 12 of the housing 1 except for the pressure sensor 2, the battery 3 and the circuit board 4 is filled with the potting adhesive 5, and the potting adhesive 5 can be epoxy adhesive or electronic adhesive such as silica gel. By the design of the integrated sealing glue, the electric safety of the battery 3 is ensured, and the battery 3 is not easy to damage; so that the circuit board 4 and the battery 3 can ensure sufficient redundant contact, prevent the occurrence of poor contact, and further prolong the service life.
As a more specific embodiment, in order to ensure the overall reliability of the device, the casing 1 is designed to be cylindrical, and the casing 1 is divided into two parts, wherein the left half part of the casing 1 is a connecting part 13, and the outer peripheral wall of the connecting part 13 is provided with a connecting thread 131 so as to be connected with a three-way pipe fitting of an indoor gas pipeline in a threaded connection manner; the right half of the shell 1 is a mounting part 14, and the connecting part 13 and the mounting part 14 are integrally formed; the pressure introduction hole 11 penetrates the connection portion 13 from left to right, and a mounting cavity 12 is formed in the mounting portion 14. In order to ensure that the pressure sensor 2 can detect more accurately, the inner diameter of the pressure introducing hole 11 is made smaller than the inner diameter of the mounting cavity 12, so that the connecting part 13 and the mounting part 14 form an inner step surface 15 at the junction of the pressure introducing hole 11 and the mounting cavity 12, and one end surface of the pressure sensor 2 is pressed against the inner step surface 15. Therefore, the pressure sensor 2 is just blocked at the pressure introducing hole 11, so that the gas flowing through the pressure introducing hole 11 is just opposite to a pressure sensing area of the pressure sensor 2, and the pressure sensor 2 is ensured to detect more accurately. In order to further enhance the sealing effect, the outer diameter of the connecting portion 13 is smaller than the outer diameter of the mounting portion 14, so that an outer step surface 16 is formed at the junction of the connecting portion 13 and the mounting portion 14, a sealing groove is formed on the outer step surface 16, and the sealing ring 6 is mounted in the sealing groove. Therefore, after the installation is finished, the sealing ring 6 is pressed on the three-way pipe fitting of the indoor gas pipe to ensure sealing. In order to facilitate quick installation, a guiding conical surface 132 with an outer diameter gradually increasing from left to right is arranged at the left end of the connecting portion 13, and the guiding conical surface 132 can be used for realizing connection with a three-way pipe fitting of an indoor gas pipe more quickly.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A house natural gas leakage detection device based on pressure change recognition technology is characterized in that: including casing (1), pressure sensor (2), battery (3) and circuit board (4), the left half of casing (1) is equipped with pressure introduction hole (11) with external intercommunication, the right half of casing (1) is equipped with installation cavity (12) that introduce hole (11) intercommunication with pressure, pressure sensor (2), battery (3) and circuit board (4) are all fixed in installation cavity (12) of casing (1), the juncture of hole (11) and installation cavity (12) is introduced to the pressure of casing (1) is fixed to the one end of pressure sensor (2), and the other end and circuit board (4) electricity of pressure sensor (2) are connected, circuit board (4) are connected with battery (3) electricity.
2. The residential natural gas leakage detection apparatus based on pressure variation identification technology according to claim 1, characterized in that: battery (3) and circuit board (4) parallel interval about setting in installation cavity (12) of casing (1), remove in installation cavity (12) of casing (1) pressure sensor (2), battery (3) and circuit board (4) remaining space and fill with casting glue (5).
3. The residential natural gas leakage detection apparatus based on pressure variation recognition technology according to claim 2, characterized in that: casing (1) is the column, and half one on the left side of casing (1) is connecting portion (13), be equipped with connecting thread (131) on the periphery wall of connecting portion (13), half one on the right side of casing (1) is installation department (14), connecting portion (13) and installation department (14) integrated into one piece, hole (11) is introduced to pressure runs through connecting portion (13) from left to right, installation cavity (12) are formed in installation department (14).
4. The residential natural gas leakage detection apparatus based on pressure variation recognition technology according to claim 3, characterized in that: the inner diameter of the pressure introducing hole (11) is smaller than that of the mounting cavity (12) so that the connecting part (13) and the mounting part (14) form an inner step surface (15) at the junction of the pressure introducing hole (11) and the mounting cavity (12), and one end surface of the pressure sensor (2) is pressed against the inner step surface (15).
5. The residential natural gas leakage detection apparatus based on pressure variation identification technology according to claim 4, wherein: the external diameter of connecting portion (13) is less than the external diameter of installation department (14) and makes connecting portion (13) and installation department (14) juncture form an outer step face (16), be equipped with a seal groove on outer step face (16), install sealing washer (6) in the seal groove.
6. The residential natural gas leakage detection apparatus based on pressure variation identification technology according to claim 5, wherein: the left end of the connecting part (13) is provided with a guide conical surface (132) with the outer diameter gradually increasing from left to right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122479538.3U CN216594037U (en) | 2021-10-14 | 2021-10-14 | Residential natural gas leakage detection device based on pressure change recognition technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122479538.3U CN216594037U (en) | 2021-10-14 | 2021-10-14 | Residential natural gas leakage detection device based on pressure change recognition technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216594037U true CN216594037U (en) | 2022-05-24 |
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ID=81639624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122479538.3U Active CN216594037U (en) | 2021-10-14 | 2021-10-14 | Residential natural gas leakage detection device based on pressure change recognition technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216594037U (en) |
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2021
- 2021-10-14 CN CN202122479538.3U patent/CN216594037U/en active Active
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