CN208383174U - A kind of methane gas detection device - Google Patents
A kind of methane gas detection device Download PDFInfo
- Publication number
- CN208383174U CN208383174U CN201820761515.7U CN201820761515U CN208383174U CN 208383174 U CN208383174 U CN 208383174U CN 201820761515 U CN201820761515 U CN 201820761515U CN 208383174 U CN208383174 U CN 208383174U
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- China
- Prior art keywords
- tube body
- tube
- pressure measurement
- connecting tube
- measurement mouth
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of methane gas detection device, it from left to right sequentially include the first tube body, connecting tube and the second tube body, a pressure measurement mouth is respectively set on first tube body and the second tube body, it is to be tightly connected between first tube body and connecting tube, between the second tube body and connecting tube, O-ring seals are set in the connecting tube, the right end of first tube body, the left end of the second tube body are in close contact with O-ring seals respectively, and sealing mechanism is arranged in the pressure measurement mouth.The utility model passes through the collocation design of pressure measurement mouth and sealing mechanism, under the premise of guaranteeing good seal performance, simplifies the opening and closing process of pressure measurement mouth, solves the structure design of multiple control valves in the prior art, easy to carry.
Description
Technical field
The utility model belongs to technical field of coal mine equipment, and in particular to a kind of methane gas detection device.
Background technique
Gas is a kind of toxic mixed gas, mainly contains two kinds of gases of methane and carbon monoxide, is often generated in mine
Among coal seam, such as open fire, i.e. incendivity, gas explosion occurs, directly threatens the life security of miner.
Highly gassy mine takes coal bed gas extraction to work at present, and methane gas drilling passes through extraction pipeline from work after drawing
It is led to ground draw-off pump station before extraction as face and needs to detect the parameters of methane gas, such as temperature,
Pressure, flow, concentration etc., wherein what is generallyd use for pressure and flow is that arrange in pairs or groups U-shaped differential manometer of orifice flowmeter is examined
It surveys, such as:
The patent document of application number 2014208006478 discloses a kind of mine gas drilling comprehensive parameter tester, including
Connection drills and the pvc pipe of extraction pipeline and the bypass line being set on pvc pipe, is provided on pvc pipe and bores for measuring
The anti-shock pressure meter of hole negative pressure is provided with the orifice flowmeter of measurement drilling flow, orifice flowmeter two sides on bypass line
Bypass line be equipped with connection measuring diaphragm pressure difference U-shaped differential manometer nozzle, the middle-end of PVC pipe is provided with for closing
The ball valve of drilling is provided with the measured hole of measurement gas density on bypass line.The structure is disadvantageous in that, ball valve is arranged
The circulation of gas is controlled, the volume of entire instrument is larger, underground work not Portable belt.
Utility model content
In view of this, the purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of methane gas detection dress
It sets, by the collocation design of pressure measurement mouth and sealing mechanism, under the premise of guaranteeing good seal performance, simplifies the opening of pressure measurement mouth
With closing process, solve the structure design of multiple control valves in the prior art, it is easy to carry.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of methane gas detection device sequentially includes the first tube body, connecting tube and the second tube body, the first pipe from left to right
A pressure measurement mouth is respectively set on body and the second tube body, between first tube body and connecting tube, the second tube body and connecting tube it
Between be to be tightly connected, O-ring seals are set in the connecting tube, the left end point of the right end of first tube body, the second tube body
It is not in close contact with O-ring seals, sealing mechanism is set in the pressure measurement mouth.
Further, the pressure measurement mouth include superposed connection-peg, the hex nut at middle part, lower part screw rod, institute
It states the first tube body and the threaded hole to match with screw rod is arranged in the second tube body, the outer surface of the connection-peg is step-like structure,
The sealing mechanism includes lantern ring, connection sheet and nut cap, and the lantern ring is socketed in pressure measurement mouth, and is located at hex nut and two
Between tube body, the nut cap and connection-peg are fitted close.
Further, between first tube body and connecting tube, be between the second tube body and connecting tube be threadedly coupled, and
Between the first tube body and connecting tube, filling with sealant between the second tube body and connecting tube.
The beneficial effects of the utility model are:
1. one end plug-in type of the utility model is mounted on the hose of working face concordant drilling orifice, other end grafting
Formula is mounted on extraction bye-pass, can measure the parameters such as gas density, pressure, flow, the pure flow of this coal seam concordant drilling,
It is former inconvenient using valve regulated single hole methane gas measurement bring in the prior art to change, and reduces worker's labor intensity；In addition,
The present apparatus directly with drilling hose Fast Installation, is saved the activity duration, specific as follows:
Be used alone the pressure measurement mouth of side, external pressure sensing instruments or Concentration Testing instrument, realize gas pressure,
Concentration Testing, by two pressure measurement mouths and orifice flowmeter, external U-shaped differential manometer realizes the detection of gas flow, and an object is more
With.
2. pressure measurement mouth is designed stepped, leakproofness between the two has been effectively ensured in the design for silica gel nut cap of arranging in pairs or groups
Can, herein under the premise of, simplify the opening and closing process of pressure measurement mouth, the structure for solving multiple control valves in the prior art sets
Meter, and sealing mechanism is an integral structure with tube body, pre- anti-lost problem.
3. two tube bodies are designed to be threadedly coupled with connecting tube, and it is sealed by sealant, not only leakproofness, knot
Structure intensity is effectively ensured, and installation effectiveness can be improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment one；
Fig. 2 is the structural schematic diagram of pressure measurement mouth and sealing mechanism.
Figure label: the first tube body of 1-, 2- connecting tube, the second tube body of 3-, 4- pressure measurement mouth, 41- connection-peg, 42- hexagonal spiral shell
Mother, 43- screw rod, 5-O shape sealing ring, 6- lantern ring, 7- connection sheet, 8- nut cap.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figure 1, the utility model from left to right sequentially include the first tube body 1, connecting tube 2 and the second tube body 3, first
Tube body 1 with distinguish thread seal on the second tube body 3 and connect a pressure measurement mouth 4, between the first tube body 1 and connecting tube 2, the second tube body
It is to be threadedly coupled between 3 and connecting tube 2, and between the first tube body 1 and connecting tube 2, between the second tube body 3 and connecting tube 2
Filling with sealant, realization seal two-by-two, and O-ring seals 5, a left side for the right end of the first tube body 1, the second tube body 3 are arranged in connecting tube 2
End is in close contact with O-ring seals 5 respectively；
Referring to figs. 1 and 2, pressure measurement mouth 4 includes superposed connection-peg 41, the hex nut 42 at middle part, lower part
Screw rod 43, the threaded hole that the first tube body 1 and the setting of the second tube body 3 match with screw rod 43, the outer wall of connection-peg 41 is step
Sealing mechanism is arranged in pressure measurement mouth 4 for shape structure, and sealing mechanism includes lantern ring 6, connection sheet 7 and nut cap 8, and lantern ring 6 is socketed in survey pressure
On mouth 4, and between hex nut 42 and two tube bodies, nut cap 8 and connection-peg 41 are fitted close.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, it is practical without departing from this
The spirit and scope of new technique scheme should all cover in the scope of the claims of the utility model.
Claims (3)
1. a kind of methane gas detection device, it is characterised in that: from left to right sequentially include the first tube body, connecting tube and the second pipe
A pressure measurement mouth is respectively set on body, the first tube body and the second tube body, between first tube body and connecting tube, the second tube body with
It is to be tightly connected between connecting tube, O-ring seals, right end, the second tube body of first tube body is set in the connecting tube
Left end be in close contact respectively with O-ring seals, sealing mechanism is set in the pressure measurement mouth.
2. a kind of methane gas detection device according to claim 1, it is characterised in that: the pressure measurement mouth includes positioned at upper
The connection-peg in portion, the hex nut at middle part, lower part screw rod, first tube body and the setting of the second tube body match with screw rod
Threaded hole, the outer surface of the connection-peg are step-like structure, and the sealing mechanism includes lantern ring, connection sheet and nut cap, described
Lantern ring is socketed in pressure measurement mouth, and between hex nut and two tube bodies, and the nut cap and connection-peg are fitted close.
3. a kind of methane gas detection device according to claim 1, it is characterised in that: first tube body and connecting tube
Between, be between the second tube body and connecting tube be threadedly coupled, and between the first tube body and connecting tube, the second tube body with connect
Filling with sealant between pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820761515.7U CN208383174U (en) | 2018-05-22 | 2018-05-22 | A kind of methane gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820761515.7U CN208383174U (en) | 2018-05-22 | 2018-05-22 | A kind of methane gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208383174U true CN208383174U (en) | 2019-01-15 |
Family
ID=64971728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820761515.7U Expired - Fee Related CN208383174U (en) | 2018-05-22 | 2018-05-22 | A kind of methane gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208383174U (en) |
-
2018
- 2018-05-22 CN CN201820761515.7U patent/CN208383174U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20190522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |