CN109701372A - Coal mine pump drainage low concentration gas heat source sled - Google Patents
Coal mine pump drainage low concentration gas heat source sled Download PDFInfo
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- CN109701372A CN109701372A CN201811617161.XA CN201811617161A CN109701372A CN 109701372 A CN109701372 A CN 109701372A CN 201811617161 A CN201811617161 A CN 201811617161A CN 109701372 A CN109701372 A CN 109701372A
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- heat source
- area
- oxidation
- low concentration
- coal mine
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Abstract
The invention discloses a kind of coal mine pump drainage low concentration gas heat source sleds, the escape pipe communicated including one end with fire damp, escape pipe has been sequentially arranged water ring pump, detonation seal to the direction far from fire damp, has intended quick-fried device and leaking explosion device, the escape pipe other end and the NO for inhibiting nitrogen oxides to generateXDevice input terminal of drawing up communicates, NOXThe input terminal of device of drawing up is also connected with blower, NOXDevice output end of drawing up is connect through supervisor with heat source sled input terminal, and heat source sled includes shell, is set in turn in shell intracorporal selective paraffin oxidation atmosphere adjusting area, pre-oxidation area, oxidation reaction heap area, thermal oxide area and hot-blast outlet to the direction far from heat source sled input terminal.The coal mine pump drainage low concentration gas heat source sled of the present invention using the above structure, heat can will be released after CH4 complete oxidation in low concentration gas, heat source as equipment such as steam boiler, electricity generation boiler, hot-water boilers, directly destroy and be utilized coal mine drawing-off gas, reduce energy waste, alleviates environmental pollution.
Description
Technical field
The present invention relates to a kind of gas drawing station and utilization technology more particularly to a kind of coal mine pump drainage low concentration gas heat sources
Sled.
Background technique
On earth, gas amount theoretical value caused by one ton of coal of every generation is 400-600m3, their some are still adjoint
Coal is buried in underground, and fraction escapes into atmosphere naturally, most of with that can discharge while underground coal mining, because of China
Hundred million tons/year of output of coal about 35-40, leading to the pure gas (CH4 content be 100% pure gas amount) of this association, burst size is about
More than 130 hundred million cubes, but wherein only have about 5,000,000,000 cubes of high concentration gas to be utilized, remaining more than 80 hundred million cubes gas utilization
Rate is very low, and major part is all in line have been arrived in atmosphere, and CH4, which is discharged into atmosphere, can pollute air, cause the greenhouse effects of atmosphere
Bigger than CO2 more than 20 times.
Prior art one kind can be using the explosion section gas that CH4 content in gas is 5.5%-16% as fuel applications
Onto internal combustion engine generator and combustion gas wheel, using gas internal combustion engine generator technology, kinetic energy directly can be converted by chemical energy and drive hair
Electric power generation, the heat utilization efficiency for being converted into electric energy is higher (commonly reaching 32% or more), but gas internal combustion engine generator generally makes
The gas that CH4 content is 9% or more, and the gas of low concentration cannot be utilized, and limit application range, and this sets
Standby maintenance maintenance amount is big, replacement vulnerable part is frequent, needs maintenance and repair personnel more, operating cost is higher, while detonation in cylinder
The high temperature for generating 2000 DEG C -3000 DEG C, will generate a large amount of nitrogen oxides as flue gas is discharged, to meet environmental requirement, it is necessary to
It can just be discharged into atmosphere after denitrification apparatus is handled, otherwise will generate secondary pollution, and increase processing cost.
Another way be will explode section gas incorporation large quantity of air, so that gas density is down to 1.0%-1.2%, so
After carry out oxidation processes, such as RTO (heat storage type oxidation unit), RCO (heat storage type catalytic oxidizing equipment), RL (rotation heat storage type
Oxidation unit), but the original design intention of such heat storage type oxidation unit is to destroy indusrial toxic gas, qualified discharge is sacrificial
Domestic animal energy consumption and the product met environmental requirements will not aoxidized and be produced after having the disadvantage that 1, destroying and draw out methane
Raw heat uses；2, the biggish blending system of energy consumption need to be established, large quantity of air is added to reach 1.0- to high concentration gas
The requirement of 1.2% concentration；3, exotic fuels or electric power oxidizing area first must be used to establish temperature field, could started
Reaction, often needs the fuel cost of hundreds of thousands member using fuel every time, and not only consumes considerable electricity using electrically heated,
And need to build the high-power transformer usually not too much used, the unloaded expense for paying transformer is also a no small spending；4,
Operating cost is higher, show and reached from electricity consumption and 20% have a surplus (every set oxidation unit all uses the exhaust blower of 1 370KW, then plus
Turbine generating system from electricity consumption)；5, it using air inlet reflux type, need to frequently switch air inlet-exhaust passage, cause total
The gas of amount about 4%-5% will be discharged into atmosphere from cryopumping mouth, while waste the energy.
Summary of the invention
The object of the present invention is to provide a kind of coal mine pump drainage low concentration gas heat source sleds, can be by the CH4 in low concentration gas
Heat is released after complete oxidation, as the heat source of the equipment such as steam boiler, electricity generation boiler, hot-water boiler, is directly destroyed and sharp
With coal mine drawing-off gas, reduce energy waste, alleviates environmental pollution.
To achieve the above object, the present invention provides a kind of coal mine pump drainage low concentration gas heat source sleds, including one end and well
The escape pipe that lower gas communicates, the escape pipe to far from the fire damp direction be sequentially arranged water ring pump, detonation seal,
Intend quick-fried device and leaking explosion device, the escape pipe other end and the NO for inhibiting nitrogen oxides to generateXDevice input terminal of drawing up communicates, institute
State NOXThe input terminal of device of drawing up is also connected with blower, the NOXDevice output end of drawing up is connect through supervisor with heat source sled input terminal, institute
It states heat source sled and is set in turn in the intracorporal selective paraffin oxidation gas of the shell including shell, to the direction far from heat source sled input terminal
Atmosphere adjusts area, pre-oxidation area, oxidation reaction heap area, thermal oxide area and hot-blast outlet；
The selective paraffin oxidation atmosphere adjusts area, for control gas concentration, flow velocity and reaction degree of splitting；
The pre-oxidation area is used for preliminary oxidation；
Oxidation reaction heap area is used for catalytic oxidation；
The thermal oxide area, for aoxidizing completely；
In selective paraffin oxidation atmosphere adjusting area, the pre-oxidation area, oxidation reaction heap area and the thermal oxide area
It is provided with excitation mechanism.
Preferably, the excitation mechanism includes elevator electric arc, and the elevator electric arc is through high voltage cable and high pressure conditioner phase
Even.
Preferably, between selective paraffin oxidation atmosphere adjusting area and the pre-oxidation area, the pre-oxidation area and the oxygen
Between change reactor block and oxidation reaction heap area and the isolation of thermal oxide Qu Junjing isolation board.
Preferably, the supervisor communicates through at least two branched pipes with heat source sled input terminal, sets on the branched pipe
It is equipped with the oxidation block device for unidirectionally aoxidizing.
Preferably, the leaking explosion device and the NOXThe escape pipe of part between device of drawing up is communicated with blow-down pipe, described
Emptying regulating valve is provided on blow-down pipe.
Preferably, the hot-blast outlet is connect through discharge pipe with steam boiler, electricity generation boiler or hot-water boiler.
Preferably, the inner walls are bonded with thermal insulation layer, and the material of the thermal insulation layer is ceramic fibre.
Preferably, the housing bottom is successively fixed on ground through fastening bolt, chassis.
Beneficial effects of the present invention:
1, efficiently capable of directly utilizing whole drawing-off gas that CH4 content is 5% or more, (gas of lower concentration can also
Conditional destruction and utilization), kill probability can reach the high warm of 950 DEG C ± 50 DEG C of generation of 99.9% or more, and 100%
Wind is discharged without low temperature exhaust gas, and except a small amount of radiation loss of ontology, aoxidizing heat can all be utilized by heated body, generated
High temperature wind can be used as electricity generation boiler, and the high-quality heat source of steam boiler, hot-water boiler, the heated bodies such as heat blower uses；
2, it is equipped with NOXIt draws up device, reaction degree of splitting is controlled, does not generate NO in the processX, do not need separately to set denitrification apparatus, operation at
This is low；
3, system establishes temperature field from consuming energy without movable member woth no need to separately increase power power-supply and fuel gas source, starts
Simply, operation, maintenance cost are all very low；
4, system flow is short and simple and direct, and engineering does not have large-scale pipeline to build, expense is low, it is short to take up an area few completion time of project；
6, it can be equipped with monitoring center in general headquarters, remotely the operation conditions of every heat source sled is monitored in real time, use can be solved
The sorrow at family；
7, can separate unit use, can also more be applied in combination, to meet the needs of different gas quantums of output；
8, skid pattern, volume is relatively small, is convenient for integral moving, can be moved when gas resources exhaustion to making at it
With.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is a kind of structure chart of coal mine pump drainage low concentration gas heat source sled of the embodiment of the present invention.
Wherein: 1, blower；2, blow-down pipe；3, water ring pump；4, detonation seal；5, intend quick-fried device；6, leaking explosion device；7,NOXIt draws up device；
8, it is responsible for；9, block device is aoxidized；10, selective paraffin oxidation atmosphere adjusts area；11, area is pre-oxidized；12, oxidation reaction heap area；13, hot oxygen
Change area；14, shell；15, hot-blast outlet.
Specific embodiment
Below with reference to attached drawing, the invention will be further described, it should be noted that the present embodiment is with this technology side
Premised on case, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to this reality
Apply example.
Fig. 1 is a kind of structure chart of coal mine pump drainage low concentration gas heat source sled of the embodiment of the present invention, as shown in Figure 1, this
The structure of invention, including the escape pipe that one end is communicated with fire damp, escape pipe is sequentially arranged to the direction far from fire damp
There are water ring pump 3, detonation seal 4, intend quick-fried device 5 and leaking explosion device 6, the escape pipe other end and the NOX for inhibiting nitrogen oxides to generate are quasi-
7 input terminal of device processed communicates, and the draw up input terminal of device 7 of NOX is also connected with blower 1, and NOX draws up 7 output end of device through supervisor 8 and heat source
Input terminal connection is prized, supervisor 8 communicates with heat source sled input terminal through at least two branched pipes, is provided on branched pipe for unidirectional oxygen
The oxidation block device 9 of change, heat source sled are set in turn in shell 14 including shell 14, to the direction far from heat source sled input terminal
Selective paraffin oxidation atmosphere adjusts area 10, pre-oxidation area 11, oxidation reaction heap area 12, thermal oxide area 13 and hot-blast outlet 15, and hot wind goes out
Mouth 15 is connect through discharge pipe with steam boiler, electricity generation boiler or hot-water boiler, and selective paraffin oxidation atmosphere adjusts area 10 and pre-oxidation
Between area 11, between pre-oxidation area 11 and oxidation reaction heap area 12 and oxidation reaction heap area 12 and thermal oxide area 13 are through being isolated
Plate isolation, the material of isolation board are nonmetallic high temperature resistant material；
Selective paraffin oxidation atmosphere adjusts area 10, for control gas concentration, flow velocity and reaction degree of splitting；
Area 11 is pre-oxidized, preliminary oxidation is used for；
Oxidation reaction heap area 12 is used for catalytic oxidation, is built-in with catalyst；
Thermal oxide area 13, for aoxidizing completely；
It is provided in selective paraffin oxidation atmosphere adjusting area 10, pre-oxidation area 11, oxidation reaction heap area 12 and thermal oxide area 13
Excitation mechanism, excitation mechanism include elevator electric arc, and elevator electric arc is connected through high voltage cable with high pressure conditioner.
The present embodiment, leaking explosion device 6 and the NOX escape pipe of part between device 7 of drawing up are communicated with blow-down pipe 2, are set on blow-down pipe 2
It is equipped with emptying regulating valve.14 inner wall of shell is bonded with thermal insulation layer, and the material of thermal insulation layer is ceramic fibre, and thermal insulation layer can also be other
Temperature-resistance thermal-insulation material；14 bottom end of shell is successively fixed on ground through fastening bolt, chassis.
Heat source sled, as fuel, and is installed additional NOX before heat source sled and drawn up device 7 using low concentration gas, and control is reacted and split
Degree inhibits NOXGeneration, then aoxidized through zoneofoxidation and generate high-temperature hot-air, can be used as electricity generation boiler, steam boiler, hot-water boiler,
The high-quality heat source of the heated bodies such as heat blower uses, and is provided with multiple oxidation reactions set gradually in heat source sled shell 14
Room, after low concentration gas enters, oxidation reaction chamber has obtained an exciting energy resource under the excitation of elevator electric arc, and oxidation reaction is opened
Begin and store up thermal energy, enters therewith from dimension oxidation state continuous work, low concentration gas abundant oxygen in the oxidizing chamber in heat source sled
After change, the hot wind containing components such as carbon dioxide, water, nitrogen is released, top discharge is prized from heat source, without solid waste and gives up
Water generates, and due to sufficiently thermally decomposing the main component methane of gas, the gas componant and air of discharge are very close, thus exist
While making full use of low concentration gas, greenhouse effects can also be slowed down.
Therefore, the coal mine pump drainage low concentration gas heat source sled of the present invention using the above structure, can will be in low concentration gas
Release heat after CH4 complete oxidation, as the heat source of the equipment such as steam boiler, electricity generation boiler, hot-water boiler, directly destroy and
Coal mine drawing-off gas is utilized, reduces energy waste, alleviates environmental pollution.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited,
Although the present invention is described in detail with reference to preferred embodiments, those skilled in the art should understand that: its according to
So can be with modification or equivalent replacement of the technical solution of the present invention are made, and these modifications or equivalent replacement cannot also make to repair
Technical solution after changing is detached from the spirit and scope of technical solution of the present invention.
Claims (8)
1. a kind of coal mine pump drainage low concentration gas heat source sled, including the escape pipe that one end is communicated with fire damp, the escape pipe
Water ring pump, detonation seal have been sequentially arranged to the direction far from the fire damp, has intended quick-fried device and leaking explosion device, it is characterised in that: institute
State the escape pipe other end and the NO for inhibiting nitrogen oxides to generateXDevice input terminal of drawing up communicates, the NOXIt draws up the input of device
End is also connected with blower, the NOXDevice output end of drawing up is connect through supervisor with heat source sled input terminal, and the heat source sled includes shell
Body is set in turn in the shell intracorporal selective paraffin oxidation atmosphere adjusting area, pre- oxygen to the direction far from heat source sled input terminal
Change area, oxidation reaction heap area, thermal oxide area and hot-blast outlet；
The selective paraffin oxidation atmosphere adjusts area, for control gas concentration, flow velocity and reaction degree of splitting；
The pre-oxidation area is used for preliminary oxidation；
Oxidation reaction heap area is used for catalytic oxidation；
The thermal oxide area, for aoxidizing completely；
It is all provided in selective paraffin oxidation atmosphere adjusting area, the pre-oxidation area, oxidation reaction heap area and the thermal oxide area
It is equipped with excitation mechanism.
2. a kind of coal mine pump drainage low concentration gas heat source sled according to claim 1, it is characterised in that: the excitation mechanism
Including elevator electric arc, the elevator electric arc is connected through high voltage cable with high pressure conditioner.
3. a kind of coal mine pump drainage low concentration gas heat source sled according to claim 1, it is characterised in that: the selective paraffin oxidation
Atmosphere adjusts between area and the pre-oxidation area, between the pre-oxidation area and oxidation reaction heap area and described aoxidizes instead
The area Ying Dui and the isolation of thermal oxide Qu Junjing isolation board.
4. a kind of coal mine pump drainage low concentration gas heat source sled according to claim 1, it is characterised in that: the supervisor is through extremely
Few two branched pipes are communicated with heat source sled input terminal, and the oxidation for unidirectionally aoxidizing is provided on the branched pipe and is blocked
Device.
5. a kind of coal mine pump drainage low concentration gas heat source sled according to claim 1, it is characterised in that: the leaking explosion device and
The NOXThe escape pipe of part between device of drawing up is communicated with blow-down pipe, and emptying regulating valve is provided on the blow-down pipe.
6. a kind of coal mine pump drainage low concentration gas heat source sled according to claim 1, it is characterised in that: the hot-blast outlet
It is connect through discharge pipe with steam boiler, electricity generation boiler or hot-water boiler.
7. a kind of coal mine pump drainage low concentration gas heat source sled according to claim 1, it is characterised in that: the inner walls
It is bonded with thermal insulation layer, the material of the thermal insulation layer is ceramic fibre.
8. a kind of coal mine pump drainage low concentration gas heat source sled according to claim 1, it is characterised in that: the housing bottom
Successively it is fixed on ground through fastening bolt, chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617161.XA CN109701372A (en) | 2018-12-28 | 2018-12-28 | Coal mine pump drainage low concentration gas heat source sled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617161.XA CN109701372A (en) | 2018-12-28 | 2018-12-28 | Coal mine pump drainage low concentration gas heat source sled |
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| Publication Number | Publication Date |
|---|---|
| CN109701372A true CN109701372A (en) | 2019-05-03 |
Family
ID=66258813
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811617161.XA Pending CN109701372A (en) | 2018-12-28 | 2018-12-28 | Coal mine pump drainage low concentration gas heat source sled |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115024A (en) * | 1988-10-25 | 1990-04-27 | Mitsubishi Heavy Ind Ltd | Apparatus for decomposing nitrous oxide |
| CN101694297A (en) * | 2009-10-23 | 2010-04-14 | 洛阳瑞昌石油化工设备有限公司 | Forced-draft burner and method for regularizing side-combustion high-temperature preheated air of square-box furnace |
| CN101845960A (en) * | 2010-05-07 | 2010-09-29 | 大连海事大学 | Ventilation air methane countercurrent oxidation device with flue gas suction device |
| CN104481576A (en) * | 2014-11-12 | 2015-04-01 | 华中科技大学 | Coal mine gas low emission catalytic oxidation heat supply system |
| CN108488893A (en) * | 2018-03-06 | 2018-09-04 | 河北煜剑节能技术有限公司 | Low concentration gas heat source prizes heating plant |
-
2018
- 2018-12-28 CN CN201811617161.XA patent/CN109701372A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115024A (en) * | 1988-10-25 | 1990-04-27 | Mitsubishi Heavy Ind Ltd | Apparatus for decomposing nitrous oxide |
| CN101694297A (en) * | 2009-10-23 | 2010-04-14 | 洛阳瑞昌石油化工设备有限公司 | Forced-draft burner and method for regularizing side-combustion high-temperature preheated air of square-box furnace |
| CN101845960A (en) * | 2010-05-07 | 2010-09-29 | 大连海事大学 | Ventilation air methane countercurrent oxidation device with flue gas suction device |
| CN104481576A (en) * | 2014-11-12 | 2015-04-01 | 华中科技大学 | Coal mine gas low emission catalytic oxidation heat supply system |
| CN108488893A (en) * | 2018-03-06 | 2018-09-04 | 河北煜剑节能技术有限公司 | Low concentration gas heat source prizes heating plant |
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Application publication date: 20190503 |
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