CN203420701U - Gas detection and protection device and extraction drill hole gas detection system - Google Patents
Gas detection and protection device and extraction drill hole gas detection system Download PDFInfo
- Publication number
- CN203420701U CN203420701U CN201320477960.8U CN201320477960U CN203420701U CN 203420701 U CN203420701 U CN 203420701U CN 201320477960 U CN201320477960 U CN 201320477960U CN 203420701 U CN203420701 U CN 203420701U
- Authority
- CN
- China
- Prior art keywords
- gas
- main body
- gas detection
- suction
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a gas detection and protection device and an extraction drill hole gas detection system. The gas detection and protection device comprises a tee body and a water accumulator, wherein the first end of the tee body is communicated with a gas outlet nozzle of an extraction drill hole; the second end of the tee body is communicated with the gas extraction end of an air extraction device cylinder; the third end of the tee body is communicated with the water inlet end of the water accumulator. According to the gas detection and protection device and the extraction drill hole gas detection system, accumulated water can be prevented from being extracted into the cylinder and being pushed into a gas engine when the air extraction device cylinder extracts the gas of the drill hole.
Description
Technical field
The utility model relates to mechanical technique, relates in particular to a kind of gas and detects protective device and extraction borehole Measuring System of Gas.
Background technology
In coal mine gas drainage process, need regularly to detect the gas density in extraction borehole.After extraction borehole has been constructed, can be at the built-in 1 inch polyethylene pipe 2 of extraction borehole 20 at the bottom of hole, at the built-in 2 inch polyethylene pipes 3 of sealing of hole section, as shown in Figure 1, outer end arranges an iron pipe 4, and this iron pipe 4 exposes to boring 20, and the part exposing is provided with an aperture 5, on this aperture 5, install one with the suction nozzle of gate valve, for being detected gas density in extraction borehole so that methane gas passes through this suction nozzle.
The structure in prior art, extraction borehole gas density being detected, is generally all that one end of a hose is inserted on the suction nozzle in aperture, and the other end is inserted in the inlet end of suction-pump.The outlet side of suction-pump is connected to the inlet end of gas machine with a hose.When specifically extraction borehole being carried out to methane Concentration Measurement, by pulling suction-pump piston to make to form in cylinder a negative pressure, thereby by the gas in extraction borehole by suction nozzle and hose suction suction-pump; Then, by promoting suction-pump piston, make gas enter the air chamber of gas machine, thus can be so that gas machine detects the gas density in extraction borehole.
And part extraction borehole after pore-forming because of the impact of the factor such as geology, cause in extraction borehole, there is a large amount of ponding.When carrying out gas pumping, on the one hand, owing to having ponding in boring, suction-pump when extracting borehole gases likely by ponding suction cylinder in and advance in gas machine, cause the medicine in gas machine make moist and damage machine, affect the normal use of gas machine and the true detection of extraction borehole gas density.
Utility model content
The utility model provides a kind of gas to detect protective device and extraction borehole Measuring System of Gas, with avoid suction-pump when extracting borehole gases by ponding suction cylinder in and advance in gas machine.
The utility model provides a kind of gas to detect protective device, comprising: threeway main body and water accumulator;
The first end of described threeway main body is communicated with the outlet nozzle of extraction borehole;
The second end of described threeway main body is communicated with the end of bleeding of suction-pump;
The 3rd end of described threeway main body is communicated with the water inlet end of water accumulator.
Preferably, the second end place of described threeway main body is provided with a control valve, and/or described outlet nozzle place is provided with a control valve.
Preferably, described water inlet end is arranged on the upper end of described water accumulator, and the lower end of described water accumulator is also provided with a draining valve.
The utility model also provides a kind of extraction borehole Measuring System of Gas, and it comprises: gas machine and above-mentioned arbitrary gas pumping device;
The inlet end of described gas machine is communicated with the outlet side of described suction-pump.
While adopting the utility model to extract borehole gases, borehole gases can detect protective device through gas, once contain moisture in gas, moisture can enter into because of the gravity of himself water accumulator that gas detects protective device, realize the separation of aqueous vapor, thereby reduced the moisture in the pump bowl that enters suction-pump, also just reduced the content that suction-pump pushes moisture in the gas in gas machine, thereby reduced the interference of moisture to methane Concentration Measurement, make in boring the testing result of gas density more level off to actual value, be conducive to accurately grasp the gas density in boring.In addition, also avoided in Yin Wasi, containing a large amount of moisture and caused gas machine to be damaged.
Accompanying drawing explanation
Fig. 1 is the structural representation of extraction borehole in prior art;
Fig. 2 is the structural representation that the utility model gas detects protective device embodiment;
Fig. 3 is the structural representation that the gas in embodiment illustrated in fig. 2 detects protective device;
Fig. 4 be the A-A that detects protective device of gas shown in Fig. 3 to cross-sectional view;
Fig. 5 is the structural representation of the utility model extraction borehole Measuring System of Gas embodiment.
The specific embodiment
Fig. 2 is the structural representation that the utility model gas detects protective device embodiment; Fig. 3 is the structural representation that the gas in embodiment illustrated in fig. 2 detects protective device; Fig. 4 be the A-A that detects protective device of gas shown in Fig. 3 to cross-sectional view.Please refer to Fig. 2～4, the present embodiment provides a kind of gas to detect protective device, and it comprises that gas detects protective device 1 and suction-pump 23.Wherein, gas detection protective device 1 comprises threeway main body 10 and water accumulator 14.Wherein, the first end 11 of threeway main body 10 can be communicated with the outlet nozzle 21 of extraction borehole 20, and the second end 12 of threeway main body 10 is communicated with the end 231 of bleeding of suction-pump 23, and the 3rd end 13 of threeway main body 10 is communicated with the water inlet end of water accumulator 14.When specific implementation, above-mentioned connection can adopt hose 22 to realize.
Specifically describe the structure of threeway main body 10 below.
The middle part of threeway main body 10 is formed with T shape path 101.The first end 11 of threeway main body 10 can be arranged on the side of threeway main body 10, as the inlet end of threeway main body 10.This first end 11 can be communicated with the outlet nozzle 21 of extraction borehole 20 by hose 22.The second end 12 of threeway main body 10 can be arranged on threeway main body 10 above, as the end of bleeding of threeway main body 10.This second end 12 can be communicated with the end 231 of bleeding of suction-pump 23 by hose 22.The water inlet end of water accumulator 14 can be arranged on the upper end of water accumulator 14, the discharge ends 15 of water accumulator 14 can be arranged on the lower end of water accumulator 14, accordingly, the 3rd end 13 of threeway main body 10 can be arranged on threeway main body 10 below, as the discharge ends of threeway main body 10, be communicated with the water inlet end of water accumulator 14.
Further, water accumulator can also arrange a draining valve 17 in discharge ends 15, the moisture in the device 14 that conveniently drains the water away.
Wherein, first end 11, the second end 12 and the 3rd end 13 and the mode of communicating of threeway main body 10 are, the connected mode of the mode of communicating of the water inlet end of water accumulator 14 and discharge ends 15 and water accumulator 14, draining valve 17 and discharge ends 15 is preferably welding.
The 3rd end 13 can be for example also welding for being spirally connected with the connected mode of the water inlet end of water accumulator 14.
In addition, can also be provided with a control valve 16 at the second end 12 of threeway main body 10 end place of bleeding, facilitate the extraction of keyhole gas, or, also can be provided with a control valve 25 at outlet nozzle 21 places of extraction borehole 20, or, control valve 16 and control valve 25 can be set simultaneously.
Based on said structure, when specifically extraction borehole being carried out to gas detection, open the control valve 16 at end 12 places of bleeding in the control valve 25 of extraction borehole 20 outlet nozzles 21 and threeway main body 10 simultaneously, pull the piston of suction-pump 23 to make formation negative pressure in cylinder, thereby in the pump bowl by the gas in extraction borehole 20 by threeway main body 10 suction suction-pumps 23, when gas process threeway main body 10, the moisture containing in gas can enter into because of the gravity of himself water accumulator 14, thereby realize the separation of aqueous vapor, reduced the moisture in the pump bowl that enters suction-pump 23, and then minimizing suction-pump 23 pushes the moisture in the gas in gas machine 24.Then, the piston of promotion suction-pump 23 enters in the air chamber of gas machine 24 methane gas.Thereby can be so that gas machine detects the gas density in extraction borehole.If time-out extracting gases can only be closed in threeway main body 10 and be bled and hold the control valve 16 at 12 places, first do not close the control valve 25 of extraction borehole 20 outlet nozzles 21; If completed gas detection, close in threeway main body 10 simultaneously and bleed and hold the control valve 16 at 12 places and the control valve 25 of extraction borehole 20 outlet nozzles 21.
The present embodiment; when extracting gases; gas can detect protective device through gas; once contain moisture in gas; moisture can enter into because of the gravity of himself water accumulator that gas detects protective device; realize the separation of aqueous vapor; thereby reduced the moisture in the pump bowl that enters suction-pump; also just reduced the content that suction-pump pushes moisture in the gas in gas machine; thereby reduced the interference of moisture to methane Concentration Measurement; make in boring the testing result of gas density more level off to actual value, be conducive to accurately grasp the gas density in boring.In addition, also avoided causing gas machine to be damaged because containing a large amount of moisture in gas.
Fig. 5 is the structural representation of the utility model extraction borehole Measuring System of Gas embodiment.The extraction borehole Measuring System of Gas of the present embodiment, comprising: the gas shown in gas machine 24 and above-mentioned Fig. 2～Fig. 4 detects protective device, and the inlet end of gas machine 24 is communicated with the outlet side of suction-pump 23.
Adopting the system of the present embodiment to carry out the process of extraction borehole methane Concentration Measurement can be referring to above-mentioned Fig. 2～implementation procedure embodiment illustrated in fig. 4, once make gas enter the air chamber of gas machine 24 and promote suction-pump 23 pistons, gas machine 24 can detect the gas density in extraction borehole 20.
The extraction borehole Measuring System of Gas that the present embodiment provides, when extracting gases, gas can detect protective device through gas, once contain moisture in gas, moisture can enter into because of the gravity of himself water accumulator that gas detects protective device, realize the separation of aqueous vapor, thereby reduced the moisture in the pump bowl that enters suction-pump, also just reduced the content that suction-pump pushes moisture in the gas in gas machine, thereby reduced the interference of moisture to methane Concentration Measurement, make in boring the testing result of gas density more level off to actual value, be conducive to accurately grasp the gas density in boring.In addition, also avoided in Yin Wasi, containing a large amount of moisture and caused gas machine to be damaged.
Finally it should be noted that: each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit above; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (4)
1. gas detects a protective device, it is characterized in that, comprising: threeway main body and water accumulator;
The first end of described threeway main body is communicated with the outlet nozzle of extraction borehole;
The second end of described threeway main body is communicated with the end of bleeding of suction-pump;
The 3rd end of described threeway main body is communicated with the water inlet end of water accumulator.
2. gas according to claim 1 detects protective device, it is characterized in that, the second end place of described threeway main body is provided with a control valve, and/or described outlet nozzle place is provided with a control valve.
3. gas according to claim 1 and 2 detects protective device, it is characterized in that, described water inlet end is arranged on the upper end of described water accumulator, and the lower end of described water accumulator is also provided with a draining valve.
4. an extraction borehole Measuring System of Gas, is characterized in that, comprising: the gas in gas machine and claim 1～3 described in any one detects protective device;
The inlet end of described gas machine is communicated with the outlet side of described suction-pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477960.8U CN203420701U (en) | 2013-08-06 | 2013-08-06 | Gas detection and protection device and extraction drill hole gas detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477960.8U CN203420701U (en) | 2013-08-06 | 2013-08-06 | Gas detection and protection device and extraction drill hole gas detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420701U true CN203420701U (en) | 2014-02-05 |
Family
ID=50019800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320477960.8U Expired - Lifetime CN203420701U (en) | 2013-08-06 | 2013-08-06 | Gas detection and protection device and extraction drill hole gas detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085289A (en) * | 2018-07-05 | 2018-12-25 | 王舒怡 | A kind of fixed wind energy gas detector of mine |
-
2013
- 2013-08-06 CN CN201320477960.8U patent/CN203420701U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085289A (en) * | 2018-07-05 | 2018-12-25 | 王舒怡 | A kind of fixed wind energy gas detector of mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202081908U (en) | Hole sealing device for water gushing and gas drainage drilled hole | |
| CN105424544B (en) | A kind of gas adsorbs the measuring method of induction coal deformation measurement apparatus with water simultaneously | |
| CN204154541U (en) | Groundwater sampling device | |
| CN105115203B (en) | Automatic pumping system, the refrigeration unit with the system and Automatic-bleeding method | |
| CN203420701U (en) | Gas detection and protection device and extraction drill hole gas detection system | |
| CN202992636U (en) | Compressed air supply device | |
| CN104500981B (en) | Natural gas pipe detecting tool | |
| CN203035257U (en) | Downward slant hole slag and water discharge device of downward drilling hole | |
| CN205297635U (en) | Drainage device drills down | |
| CN105840230A (en) | Negative pressure active-type mine gas collector | |
| CN204082135U (en) | Extraction borehole sealing quality detector | |
| CN202348323U (en) | Coal mine gas drainage drill combination hole-main pipe hole linkage structure | |
| CN203640769U (en) | Automatic water discharging device of mine roadway gas main pipeline | |
| CN204627660U (en) | A kind of negative pressure gas pumping device | |
| CN201548538U (en) | Gas drainage detector and water remover thereof capable of removing water automatically | |
| CN109001418B (en) | Device and method for testing plugging removal capability of hydrous coal body | |
| CN202866868U (en) | Novel dehydration and deslagging device used for mine gas extraction pipeline | |
| CN210049045U (en) | Slurry leakage detector for sleeve grouting | |
| CN204691817U (en) | A kind of coal mine gas fast pumping device | |
| CN103527245A (en) | Drainage device used for gas pumping and releasing pipeline | |
| CN204897388U (en) | Water storage bag and water purification unit | |
| CN103643987A (en) | Gas collection, slag removal and drainage device for drill hole | |
| CN203551318U (en) | Top oil extraction tool for casing pipe | |
| CN113445970A (en) | Ground production increase auxiliary device of coal bed gas single well tolerance | |
| CN202745934U (en) | Downward extraction borehole drainage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |