CN218443963U - Harmful gas detection device - Google Patents
Harmful gas detection device Download PDFInfo
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- CN218443963U CN218443963U CN202222210531.6U CN202222210531U CN218443963U CN 218443963 U CN218443963 U CN 218443963U CN 202222210531 U CN202222210531 U CN 202222210531U CN 218443963 U CN218443963 U CN 218443963U
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Abstract
The utility model provides a harmful gas detection device, include: the device comprises at least one pipe body, a conical head, an air leakage hole, a cover plate, a joint, a pressure detection device and a flow detection device; the pipe bodies are connected end to end, wherein the bottom end of the lowest pipe body is connected with the conical head, and the top end of the highest pipe body is provided with a cover plate; a plurality of air release holes are formed in the side wall of the lowermost pipe body; and the upper part of the uppermost pipe body is provided with a pressure detection device, a flow detection device and a joint. The utility model can directly detect the type, content, pressure, emission quantity and other parameters of harmful gas in the deep soil; furthermore, the harmful gas in the soil can be pumped by the harmful gas detection device, and the engineering safety is greatly improved.
Description
Technical Field
The application relates to the technical field of underground works, in particular to a harmful gas detection device.
Background
In order to ensure the safety of engineering, according to the requirements of specifications such as railway engineering geological survey specifications (TB 10012-2019), urban rail transit geotechnical engineering survey specifications and the like, when harmful gas develops on the site, parameters such as the type, content, pressure, emission quantity and the like of the harmful gas need to be detected.
The common harmful gas detection methods in the prior art comprise a method for measuring the concentration of harmful gas in a hole after pumping water, a method for sampling water in the hole, a gas-liquid separation method, a muddy water detection method and the like. However, there are not many materials for the investigation and design of harmful gases, and in the fields of rail transit, integrated railway, underground engineering, etc., there is no detection device that can directly detect parameters such as the type, content, pressure, and emission amount of harmful gases in deep soil (underground depth >3 m).
As described above, since the detection of harmful gas in the prior art has the above-mentioned disadvantages, it is an urgent need in the art to provide a harmful gas detection apparatus that can directly detect parameters such as the type, content, pressure, and burst amount of harmful gas in deep soil.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a harmful gas detection device to can directly detect out type, content, pressure, the volume of gushing out isoparametric of harmful gas in the deep soil.
The technical scheme of the utility model specifically be so realized:
a harmful gas detection apparatus, comprising: the device comprises at least one pipe body, a conical head, an air leakage hole, a cover plate, a joint, a pressure detection device and a flow detection device;
the pipe bodies are connected end to end, wherein the bottom end of the lowest pipe body is connected with the conical head, and the top end of the highest pipe body is provided with a cover plate;
a plurality of air leakage holes are formed in the side wall of the lowermost pipe body;
and the upper part of the uppermost pipe body is provided with a pressure detection device, a flow detection device and a joint.
Preferably, the joint is arranged on the cover plate and communicated with the pipe body.
Preferably, the joint is connected with a harmful gas component detection device.
Preferably, a valve is arranged below the pressure detection device, the flow detection device and the joint on the uppermost pipe body.
Preferably, the pressure detection device and the flow detection device are disposed on a side wall of an upper portion of the uppermost pipe body.
Preferably, the pressure detection device and the flow detection device are communicated with the pipe body through the same through hole on the pipe body, wherein the pressure detection device is arranged in front of the flow detection device; and a valve is arranged between the pressure detection device and the flow detection device.
Preferably, a valve is arranged on the joint.
Preferably, the joint is connected with an air suction pump.
Preferably, the position of the valve on the uppermost pipe body is provided with a reducing connector.
Preferably, the pressure detection device is a pressure gauge or a pressure sensor; the flow detection device is a flow meter or a flow sensor; the harmful gas component detection means is a harmful gas component sensor.
As can be seen from the above, in the utility model, the structure of the harmful gas detection device is reasonably designed, so that the parameters of the type, the content, the pressure, the emission amount and the like of the harmful gas in the deep soil can be directly detected; furthermore, the harmful gas in the soil can be pumped by the harmful gas detection device, and the engineering safety is greatly improved.
Drawings
Fig. 1 is a schematic structural view of a harmful gas detection device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model provides a harmful gas detection device, include: the device comprises at least one pipe body 6, a conical head 9, an air leakage hole 8, a cover plate 7, a connector 3, a pressure detection device 1 and a flow detection device 2;
the pipe bodies 6 are connected end to end, wherein the bottom end of the lowest pipe body 6 is connected with the conical head 9, and the top end of the highest pipe body 6 is provided with the cover plate 7;
a plurality of air release holes 8 are formed in the side wall of the lowermost pipe body 6;
the upper part of the uppermost pipe body 6 is provided with a pressure detection device 1, a flow detection device 2 and a joint 3.
The number of the pipe bodies 6 can be set reasonably according to the actual soil depth to be detected, and after the plurality of pipe bodies 6 are connected, the pipe bodies can be lowered to the position of the preset depth by using a drilling machine for hole leading, a static pressure method or a hammering method. Because the bottom of the lowermost pipe body 6 is connected with the conical head 9, the pipe body can be more convenient to be put into the soil body. Through set up a plurality of holes 8 that lose heart on the lateral wall at body 6 of below, thereby can make the harmful gas in the deep soil enter into the body through holes 8 that lose heart in, and can be by the pressure detection device 1 who is connected with the body detect out secret harmful gas's pressure, detect out secret harmful gas's content and the volume of gushing out by flow detection device 2, detect out secret harmful gas's type by the harmful gas composition detection device that can link to each other with joint 3, thereby can realize the detection to the harmful gas type in the deep soil, the content, pressure, the volume of gushing out isoparametric.
In the technical solution of the present invention, a plurality of implementation methods can be used to implement the above-mentioned harmful gas detection device. The technical solution of the present invention will be described in detail below by taking one implementation manner as an example.
For example, preferably, in an embodiment of the present invention, the joint 3 may be disposed on the cover plate 7 and connected to the pipe body 6.
For another example, preferably, in an embodiment of the present invention, the joint 3 may be connected to a harmful gas component detecting device, so that the composition and type of the underground harmful gas in the pipe body can be detected by the harmful gas component detecting device.
For another example, preferably, in an embodiment of the present invention, a valve 5 may be disposed below the pressure detecting device 1, the flow detecting device 2 and the joint 3 on the uppermost pipe body 6, so as to control whether the underground harmful gas flows upwards through the control valve 5, thereby preventing the harmful gas from leaking.
Furthermore, preferably, in the embodiment of the present invention, the pressure detecting device 1 and the flow detecting device 2 may be disposed on a side wall of an upper portion of the uppermost pipe body 6.
Furthermore, preferred in the embodiment of the present invention, the pressure detecting device 1 and the flow detecting device 2 can be connected to the pipe body 6 through the same through hole on the pipe body 6, wherein the pressure detecting device 1 is disposed in front of the flow detecting device 2.
Preferably, in a specific embodiment of the present invention, a valve 21 may be disposed between the pressure detecting device 1 and the flow detecting device 2.
In addition, as an example, in a preferred embodiment of the present invention, a valve 31 is also provided on the joint 3.
When the valve 5 and the valve 21 are opened and the valve 31 is closed, underground harmful gas flows to the flow detection device 2 at the moment, and the content and the emission quantity of the harmful gas can be detected; when the valve 5 is opened and the valve 21 and the valve 31 are closed, the inside of the pipe body is closed, the air pressure in the pipe body is basically the same as the underground air pressure, and the pressure of underground harmful gas can be detected by the pressure detection device 1; when connector 3 connects harmful gas composition detection device, open valve 5 and valve 31, close valve 21, underground harmful gas flow direction harmful gas composition detection device this moment can detect out harmful gas's type and composition, of course, also can open valve 21 this moment, makes flow detection device 2 and harmful gas composition detection device simultaneous working to can detect out harmful gas's content and the volume of gushing out and type and composition simultaneously.
Preferably, in an embodiment of the present invention, the pressure detecting device 1 may be a pressure gauge or a pressure sensor.
Preferably, in an embodiment of the present invention, the flow detecting device 2 may be a flow meter or a flow sensor.
Preferably, in an embodiment of the present invention, the harmful gas component detecting device may be a harmful gas component sensor.
In addition, as an example, in a preferred embodiment of the present invention, the joint 3 may also be connected to a suction pump, so that the underground harmful gas flowing through the pipe body can be pumped out by the suction pump, thereby realizing pumping and discharging of the underground harmful gas.
In addition, as an example, in a preferred embodiment of the present invention, if the inner diameter of the pipe body 6 is larger, the reducing connector 4 may be disposed at the position where the valve 5 is disposed on the uppermost pipe body, so as to facilitate the installation of the valve 5.
Preferably, the tubular body 6 may be a seamless steel tube, for example.
Preferably, tubular body 6 may be fixedly connected thereto by means of a screw connection or the like, for example.
To sum up, be in the technical scheme of the utility model, through rational design harmful gas detection device's structure to can detect out type, content, pressure, the volume of gushing isoparametric of harmful gas in the deep soil, further, still can compromise the effect of pump drainage harmful gas, greatly improved the security of engineering.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A harmful gas detection apparatus, characterized by comprising: the device comprises at least one pipe body, a conical head, an air leakage hole, a cover plate, a joint, a pressure detection device and a flow detection device;
the pipe bodies are connected end to end, wherein the bottom end of the lowest pipe body is connected with the conical head, and the top end of the highest pipe body is provided with a cover plate;
a plurality of air leakage holes are formed in the side wall of the lowermost pipe body;
and the upper part of the uppermost pipe body is provided with a pressure detection device, a flow detection device and a joint.
2. The harmful gas detection device according to claim 1, wherein the joint is provided on the cover plate and communicates with the pipe body.
3. The harmful gas detection apparatus according to claim 1, wherein the joint is connected to a harmful gas component detection apparatus.
4. The harmful gas detection apparatus according to claim 1, wherein a valve is provided on the uppermost pipe body below the pressure detection means, the flow detection means, and the joint.
5. The harmful gas detection apparatus according to claim 1, wherein the pressure detection means and the flow rate detection means are provided on a side wall of an upper portion of the uppermost pipe body.
6. The harmful gas detection apparatus according to claim 5, wherein the pressure detection means and the flow rate detection means are communicated with the pipe body through the same through hole of the pipe body, wherein the pressure detection means is provided in front of the flow rate detection means; and a valve is arranged between the pressure detection device and the flow detection device.
7. The harmful gas detecting device according to claim 1, wherein a valve is provided on the joint.
8. The harmful gas detection apparatus according to claim 1, wherein the joint is connected to a suction pump.
9. The apparatus for detecting a harmful gas according to claim 4, wherein a variable-diameter connector is provided at a position where the valve is provided on the uppermost pipe body.
10. The harmful gas detection apparatus according to claim 3, wherein the pressure detection means is a pressure gauge or a pressure sensor; the flow detection device is a flow meter or a flow sensor; the harmful gas component detection device is a harmful gas component sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222210531.6U CN218443963U (en) | 2022-08-22 | 2022-08-22 | Harmful gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222210531.6U CN218443963U (en) | 2022-08-22 | 2022-08-22 | Harmful gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218443963U true CN218443963U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222210531.6U Active CN218443963U (en) | 2022-08-22 | 2022-08-22 | Harmful gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218443963U (en) |
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2022
- 2022-08-22 CN CN202222210531.6U patent/CN218443963U/en active Active
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