CN205838940U - A kind of modularity gas utilization device - Google Patents
A kind of modularity gas utilization device Download PDFInfo
- Publication number
- CN205838940U CN205838940U CN201620711315.1U CN201620711315U CN205838940U CN 205838940 U CN205838940 U CN 205838940U CN 201620711315 U CN201620711315 U CN 201620711315U CN 205838940 U CN205838940 U CN 205838940U
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- pressure
- gas
- swing absorber
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- threeway
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Abstract
The utility model discloses a kind of modularity gas utilization device, including pressure-swing absorber, the first molecular sieve it is provided with from the bottom to top in pressure-swing absorber, second molecular sieve and type three-molecular screen alternating, first port of the air inlet connecting tee of pressure-swing absorber, second port of threeway connects coal bed gas air inlet pipe, it is provided with the first electromagnetic valve in second port of threeway, 3rd port of threeway connects pure methane air inlet pipe, it is provided with the second electromagnetic valve in 3rd port of threeway, it is provided with air pump and first flow control valve between 3rd port and the pure methane air inlet pipe of threeway, the 3rd electromagnetic valve it is provided with in pressure-swing absorber gas outlet, the gas outlet of pressure-swing absorber connects compressor, the outlet of compressor connects natural gas storage tank, second flow control valve it is provided with between compressor and the gas outlet of pressure-swing absorber.Compared with prior art, this utility model simple in construction, it is possible to the oxygen in removing coal bed gas and nitrogen, obtains the natural gas of methane content more than 98%.
Description
Technical field
This utility model relates to coal bed gas and device in Gas comprehensive reutilization technical field, particularly a kind of modularity coal seam
Diarrhea due to disorder of QI device.
Background technology
Coal bed gas is in coal seam or coal measure strata forming process, the gas produced under elevated pressure conditions, and absorption is at coal body
On become coal bed gas, be commonly called as coal bed gas, it is mainly composed of methane.Coal bed gas mainly comprises two kinds, and one is ground extraction
Coal bed gas, the methane content in this kind of coal bed gas is generally higher than 90%, is easily handled and utilizes.Another kind is down-hole extraction
Coal bed gas, also referred to as device in Gas, be wherein mixed with large quantity of air, methane content is low, typically 30～about 60%.
In progress of coal mining, due to coal mass relief, coal bed gas adsorption equilibrium condition on coal body is destroyed, greatly
The coal bed gas of amount will discharge, and forms device in Gas.Because gas explosion and gas burst accident are the maximums of safety of coal mines
Threaten, so gas is considered as the harmful gas the most dangerous to coal mining.Methane or one in device in Gas can produce temperature
The greenhouse gases of room effect, coal bed gas enters air in a large number will cause climate warming, affect global environment.
The method of traditional coal seam air stripping dense employing pressure-variable adsorption be first the most under low pressure enrichment methane to 40%, repressurization deoxidation,
Use adsorbent methane the most again, parse methane with vacuum pump evacuation.But the equipment of this mode is various, operation
Trouble, and the methane concentration prepared is low, and the CNG product efficiency of combustion further made with this methane is low.
Summary of the invention
The purpose of this utility model is intended to solve the deficiency of prior art problem, it is provided that a kind of modularity gas utilization dress
Put.
For reaching above-mentioned purpose, this utility model is implemented according to techniques below scheme:
A kind of modularity gas utilization device, including pressure-swing absorber, is provided with in described pressure-swing absorber from the bottom to top
For coal seam the first molecular sieve of rough deoxidation, for the second molecular sieve of coal bed gas loss of essence oxygen with for the 3rd point of nitrogen rejection
Son sieve, the first port of the air inlet connecting tee of pressure-swing absorber, the second port of threeway connects coal bed gas air inlet pipe, threeway
The second port in be provided with the first electromagnetic valve, threeway the 3rd port connect pure methane air inlet pipe, in the 3rd port of threeway
It is provided with the second electromagnetic valve, is provided with air pump between the 3rd port and the pure methane air inlet pipe of described threeway and first flow controls
Valve, is provided with the 3rd electromagnetic valve in pressure-swing absorber gas outlet, the gas outlet of described pressure-swing absorber connects compressor, compressor
Outlet connect natural gas storage tank, be provided with second flow control valve between described compressor and the gas outlet of pressure-swing absorber.
Further, described pressure-swing absorber outer wall is provided with controller, and controller is for controlling the first electromagnetic valve, the second electricity
Magnet valve, the 3rd electromagnetic valve, controller can use AT89S51 single-chip microcomputer.
Further, described pressure-variable adsorption inner wall of tower is provided with the pressure transducer being connected with controller, pressure transducer
For gathering the pressure of the gas within pressure-swing absorber and sending to controller.
Compared with prior art, this utility model simple in construction, it is possible to the oxygen in removing coal bed gas and nitrogen, obtains first
The natural gas of alkane content more than 98%, is forced into 25MPa through compressor and makes CNG product, and this utility model utilizes serious harm coal
The coal bed gas of ore deposit safety makes clean energy resource CNG, and the contingency occurrence probability not only reducing colliery also reduces environmental pollution, real
Existing energy-saving and emission-reduction, are applicable to the methane concentration CNG in low concentration coalbed methane containing oxygen, production operation simple and flexible, environment
Pollute little, raw material source of the gas subject range width.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by specific embodiment, in the signal of this utility model
Property embodiment and explanation be used for explaining this utility model, but be not intended as restriction of the present utility model.
A kind of modularity gas utilization device as shown in Figure 1, including pressure-swing absorber 8, in described pressure-swing absorber 8
Be provided with from the bottom to top the rough deoxidation for coal seam the first molecular sieve 9, for coal bed gas loss of essence oxygen the second molecular sieve 10 and use
In the type three-molecular screen alternating 11 of nitrogen rejection, the first port of the air inlet connecting tee 2 of pressure-swing absorber 8, the second port of threeway 2
Connecting coal bed gas air inlet pipe 1, be provided with the first electromagnetic valve 3 in the second port of threeway 2, the 3rd port of threeway 2 connects pure first
Alkane air inlet pipe 7, is provided with the second electromagnetic valve 4, the 3rd port of described threeway 2 and pure methane air inlet in the 3rd port of threeway 2
It is provided with air pump 6 and first flow control valve 5 between pipe 7, in pressure-swing absorber 8 gas outlet, is provided with the 3rd electromagnetic valve 13, described
The gas outlet of pressure-swing absorber 8 connects compressor 15, and the outlet of compressor 15 connects natural gas storage tank 16, described compressor 15
And it is provided with second flow control valve 14 between the gas outlet of pressure-swing absorber 8.During use, first control the second electromagnetic valve 4 and
Three electromagnetic valves 13 cut out, and open the first electromagnetic valve 3, and from the air inlet of pressure-swing absorber 8, coal bed gas is passed through pressure-swing absorber 8
In, the first molecular sieve 9 uses the special deoxidation molecular sieve deoxidation rough to coal seam of PSA oxygen, and the second molecular sieve 10 uses coal bed gas
Special deoxidation molecular sieve is to coal bed gas loss of essence oxygen, and type three-molecular screen alternating 11 uses the spy having higher separation for nitrogen and methane
Nitrogen in different molecular sieve removing methane gas, after being passed through a period of time, is in a higher pressure in making pressure-swing absorber 8,
Close the first electromagnetic valve 3, open the second electromagnetic valve 4 and the 3rd electromagnetic valve 13 simultaneously and open air pump 6 to pressure-swing absorber 8
Inside it is passed through pure methane gas, and it is identical with the flow velocity of second flow control valve 14 to control first flow control valve 5, such energy
All the time it is in a constant high pressure in enough keeping pressure-swing absorber 8, improves first molecular sieve the 9, second molecular sieve 10 and the 3rd
The adsorption rate of molecular sieve 11, thus obtain purer methane gas, finally give methane content reach more than 98% natural
Gas.
For the ease of controlling and operation the first electromagnetic valve the 3, second electromagnetic valve 4 and the 3rd electromagnetic valve 13, outside pressure-swing absorber 8
Wall is provided with controller 17, and controller 17 is for controlling first electromagnetic valve the 3, second electromagnetic valve the 4, the 3rd electromagnetic valve 13, the present embodiment
Middle controller 17 uses AT89S51 single-chip microcomputer.
The improvement implemented as this, instant in order to be more intuitively reached by that controller 17 understands in pressure-swing absorber 8
Pressure, pressure-swing absorber 8 inwall is provided with the pressure transducer 12 being connected with controller 17, and pressure transducer 12 is used for gathering transformation
The pressure of the gas within adsorption tower 8 also sends to controller 17.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, within each falling within protection domain of the present utility model.
Claims (4)
1. a modularity gas utilization device, including pressure-swing absorber, it is characterised in that: in described pressure-swing absorber by under
Supreme it is provided with the first molecular sieve of the rough deoxidation for coal seam, for the second molecular sieve of coal bed gas loss of essence oxygen with for nitrogen rejection
Type three-molecular screen alternating, the first port of the air inlet connecting tee of pressure-swing absorber, threeway second port connect coal bed gas enter
Trachea, is provided with the first electromagnetic valve in the second port of threeway, and the 3rd port of threeway connects pure methane air inlet pipe, the of threeway
It is provided with the second electromagnetic valve in three ports, between the 3rd port and the pure methane air inlet pipe of described threeway, is provided with air pump and first
Flow control valve, is provided with the 3rd electromagnetic valve in pressure-swing absorber gas outlet, the gas outlet of described pressure-swing absorber connects compression
Machine, the outlet of compressor connects natural gas storage tank, is provided with second flow between described compressor and the gas outlet of pressure-swing absorber
Control valve.
Modularity gas utilization device the most according to claim 1, it is characterised in that: described pressure-swing absorber outer wall sets
Having controller, controller is for controlling the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve.
Modularity gas utilization device the most according to claim 2, it is characterised in that: described pressure-variable adsorption inner wall of tower sets
Having the pressure transducer being connected with controller, pressure transducer is for gathering the pressure of the gas within pressure-swing absorber and sending
To controller.
Modularity gas utilization device the most according to claim 2, it is characterised in that: described controller is AT89S51
Single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620711315.1U CN205838940U (en) | 2016-07-07 | 2016-07-07 | A kind of modularity gas utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620711315.1U CN205838940U (en) | 2016-07-07 | 2016-07-07 | A kind of modularity gas utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205838940U true CN205838940U (en) | 2016-12-28 |
Family
ID=58150305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620711315.1U Expired - Fee Related CN205838940U (en) | 2016-07-07 | 2016-07-07 | A kind of modularity gas utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205838940U (en) |
-
2016
- 2016-07-07 CN CN201620711315.1U patent/CN205838940U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20210707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |