CN209083351U - A kind of Distributed Integration energy supplying system recycling ventilating gas - Google Patents
A kind of Distributed Integration energy supplying system recycling ventilating gas Download PDFInfo
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- CN209083351U CN209083351U CN201821246009.0U CN201821246009U CN209083351U CN 209083351 U CN209083351 U CN 209083351U CN 201821246009 U CN201821246009 U CN 201821246009U CN 209083351 U CN209083351 U CN 209083351U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Abstract
The utility model relates to a kind of Distributed Integration energy supplying systems for recycling ventilating gas, including gas blending feed system, change-over valve group, ventilated gas oxidation device, waste heat boiler and steam turbine power generation and heat supply system and flue gas type absorption refrigeration machine cooling system；Gas blending feed system is connect by change-over valve group with ventilated gas oxidation device；Ventilated gas oxidation device is connect by high temperature bleed air line with waste heat boiler and steam turbine power generation and heat supply system, for by waste heat boiler and steam turbine power generation and heat supply system is powered and heat supply；Ventilated gas oxidation device is by high temperature bleed branch and flue gas type absorption refrigeration machine cooling system, for carrying out cooling supply by flue gas type absorption refrigeration machine cooling system.The utility model had both solved the Utilizing question of waste air ventilation gas, improved the enthusiasm and awareness of safety of coal field mine ventilation, while realizing energy recovery utilization, solved the economic with energy demand of isolated island moulded coal mining area.
Description
Technical field
The utility model belongs to coal mine gas emission reduction and distributed energy resource system field more particularly to a kind of recycling
The Distributed Integration energy supplying system of ventilating gas.
Background technique
The gas total amount being discharged in coal in China recovery process is more than 20,000,000,000 m3, wherein 70% is by coalmine ventilation watt
This discharge, methane total amount are equivalent to the displacement of transfering natural gas from the west to the east 1 year.It is provided according to " safety regulations in coal mine ", ventilating gas is dense
Degree must be lower than 0.75%, and with the continuous promotion of coal mining enterprise's awareness of safety, coal mine in actual operation, is generallyd use high-power
Ventilation blower, so that the gas density of ventilation well head is further decreased to 0.3% or less.The ventilating gas gas of above-mentioned low concentration is difficult
It is very big using processing difficulty directly to burn.In addition, methane, as a kind of important greenhouse gases, strong greenhouse effects are equivalent to
CO223 times, the damage capability to ozone layer is CO27 times.Therefore, it effectively handles and using coalmine ventilation gas for first
The recycling and emission reduction of alkane have great importance, and meet the fundamental policy of China's energy-saving and emission-reduction.In addition, coal field is usually remote
From inner city, bulk power grid and concentration heat supply network solve coal field and use the economy of energy demand insufficient, demand of the coal field in the energy
With a kind of isolated island pattern is presented in supply, therefore, set using a large amount of free methane gas discharged in process of coal mining
It is significant for coal mine to count self-centered cooling heating and power generation system.
Regenerative oxidation technology is important, the most with prospects technology of current processing ventilating gas.Regenerative oxidation device
In actual operation, ventilating gas methane concentration is too low and fluctuation is big, is unfavorable for the stable operation of oxidation unit；And it considers
The energy supply demand such as hot and cold, electric blends the higher mash gas extraction (8 of methane concentration usually in the extremely low ventilating gas gas of concentration
~30%), guarantee that methane gas concentration maintains more stable numerical value, after gas density improves, oxidation unit be can produce controllably
High temperature gas temperature and flow, there are also remaining thermal energy to be used on the basis of realizing the stable operation of regenerative oxidation device,
Wherein, installing pipe heat exchanger heat hot water additional in oxidation unit is a kind of relatively conventional scheme, and the program is to entrance gas
The stability requirement of concentration is higher, is typically only capable to operate in design concentration and hereinafter, gas density fluctuation is be easy to cause when increasing
Pipeline ablation, and this method can not achieve the cascade utilization of smoke temperature, be chiefly used in single heating system.
Utility model content
The purpose of the utility model is to provide a kind of Distributed Integration energy supplying system for recycling ventilating gas, realizations pair
The super low concentration ventilating gas of coal field discharge recycles, and reduces greenhouse gas emission, meanwhile, pass through high temperature bleed step benefit
With the purpose of the power generation of the system of realization, heat supply and cooling supply.
The utility model provides a kind of Distributed Integration energy supplying system for recycling ventilating gas, including gas blending
Feed system, change-over valve group, ventilated gas oxidation device, waste heat boiler and steam turbine power generation and heat supply system and flue gas type are inhaled
Receipts formula refrigeration mechanism cooling system；
Gas blending feed system is connect by change-over valve group with ventilated gas oxidation device, for being ventilating gas oxygen
The methane gas provided by after mash gas extraction and ventilating gas blending is set in makeup；
Ventilated gas oxidation device is connect by high temperature bleed air line with waste heat boiler and steam turbine power generation and heat supply system,
For being provided by high temperature bleed, heat source is to waste heat boiler and steam turbine power generation and heat supply system is powered and heat supply；
Ventilated gas oxidation device is by high temperature bleed branch and flue gas type absorption refrigeration machine cooling system, for passing through
High temperature bleed provides heat source and carries out cooling supply to flue gas type absorption refrigeration machine cooling system.
Further, gas blending feed system includes mash gas extraction pipeline, ventilating gas pipeline and mixing device, extraction
The inlet side of gas pipeline is successively arranged hand off valve, the first dedusting dehydration device, fastly for connect with mash gas extraction pumping plant
Cutting valve and flow control valve；The inlet side of ventilating gas pipeline is used to export with ventilating gas and connect, and is equipped with motor switch butterfly
Valve；The inlet side of the outlet and mixing device of mash gas extraction pipeline and ventilating gas pipeline connects, and the outlet of mixing device passes through the
Two dedusting dehydration devices are connect with change-over valve group.
Further, ventilated gas oxidation device includes that the bilateral regenerative chamber separated by insulated wall and combustion chamber form, and is stored
Hot cell is filled with honeycomb type heat storage.
Further, waste heat boiler and steam turbine power generation and heat supply system include waste heat boiler and steam turbine, waste heat pot
The inlet side of furnace is connect with high temperature bleed air line, and outlet is connected with hand off valve, electric control valve and waste heat boiler air inducing in turn
Machine；
Steam turbine is connect by steam pipework with waste heat boiler, and is powered by generator connected to it；It steams
Steam turbine is connect by steam pipework with heat exchange station, carries out heat supply by heat exchange station.
Further, steam turbine uses condensing-type steam turbine and back pressure steam turbine combination.
Further, ventilated gas oxidation device connects gas exhaust piping by change-over valve group, and gas exhaust piping is equipped with air inducing
Machine.
Further, flue gas type absorption refrigeration machine cooling system includes flue gas type Absorption Refrigerator, and flue gas type absorbs
The inlet side of formula refrigeration machine and high temperature bleed branch and draw cold exhaust piping connection；High temperature bleed branch with draw cold exhaust pipeline phase
Even, for blend form flue gas type Absorption Refrigerator needed for warm area flue gas；The outlet of flue gas type Absorption Refrigerator is successively
It is connected with hand off valve, electric control valve and refrigeration air-introduced machine；Draw cold exhaust pipeline to connect with gas exhaust piping, draws cold exhaust pipe
Road is equipped with electric control valve.
Further, high temperature bleed air line and high temperature bleed branch routing high temperature resistant pouring material pour, and outside, which is equipped with, to be protected
Warm layer.
According to the above aspect of the present invention, it is logical both to have solved exhaust gas by the Distributed Integration energy supplying system for recycling ventilating gas
The Utilizing question of wind gas, improves the enthusiasm and awareness of safety of coal field mine ventilation, while realizing energy recovery benefit
With economic use for solving isolated island moulded coal mining area can demand.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram for the Distributed Integration energy supplying system for recycling ventilating gas of the utility model；
Fig. 2 is that a kind of Distributed Integration energy supplying system ventilating gas for recycling ventilating gas of the utility model aoxidizes dress
The structural schematic diagram set.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Join and present embodiments provides a kind of Distributed Integration energy supply system for recycling ventilating gas shown in Fig. 1 and Fig. 2
System, including gas blending feed system, change-over valve group 2, ventilated gas oxidation device 3, waste heat boiler and steam turbine power generation
Heating system and flue gas type absorption refrigeration machine cooling system；
Gas blending feed system is connect by change-over valve group 2 with ventilated gas oxidation device 3, for being ventilating gas
Oxidation unit 3 is provided by the methane gas after mash gas extraction and ventilating gas blending；
Ventilated gas oxidation device 3 is connected by high temperature bleed air line 41 and waste heat boiler and steam turbine power generation and heat supply system
It connects, for being provided by high temperature bleed, heat source is to waste heat boiler and steam turbine power generation and heat supply system is powered and heat supply；
Ventilated gas oxidation device 3 is used for by high temperature bleed branch 51 and flue gas type absorption refrigeration machine cooling system
Heat source, which is provided, by high temperature bleed carries out cooling supply to flue gas type absorption refrigeration machine cooling system.
By the Distributed Integration energy supplying system, both solved the Utilizing question of waste air ventilation gas, and improved coal field
The enthusiasm and awareness of safety of mine ventilation, while energy recovery utilization is realized, it solves the economic of isolated island moulded coal mining area and uses
It can demand.
In the present embodiment, gas blending feed system includes mash gas extraction pipeline, ventilating gas pipeline and mixing device
16, the inlet side of mash gas extraction pipeline for connect with mash gas extraction pumping plant, and be successively arranged hand off valve 11, the first dedusting takes off
Water installations 12, fast cut valve door 13 and flow control valve 14；The inlet side of ventilating gas pipeline is used to export with ventilating gas and connect, and
Equipped with motor switch butterfly valve 15；The outlet of mash gas extraction pipeline and ventilating gas pipeline is connect with the inlet side of mixing device 16, is mixed
The outlet of mixing device 16 is connect by the second dedusting dehydration device 17 with change-over valve group 2.
In the present embodiment, ventilated gas oxidation device 3 includes bilateral regenerative chamber (the first accumulation of heat separated by insulated wall 32
Room 33, the second regenerative chamber 34) and combustion chamber 31 form, regenerative chamber filled with honeycomb type heat storage (the first honeycomb type heat storage 35,
Second honeycomb type heat storage 36).Multiple regenerative chambers can be set according to the actual situation.
In the present embodiment, waste heat boiler and steam turbine power generation and heat supply system include waste heat boiler 42 and steam turbine
46, the inlet side of waste heat boiler 42 is connect with high temperature bleed air line 41, and outlet is connected with hand off valve 43, electric control valve in turn
44 and waste heat boiler air-introduced machine 45；High temperature amount of air entrainment is adjusted by line end frequency converting induced draft fan 45.
Steam turbine 46 is connect by steam pipework with waste heat boiler 42, and is supplied by generator 47 connected to it
Electricity (waste heat boiler producing steam pushing turbine acting power generation)；Steam turbine 46 is connect by steam pipework with heat exchange station 48, is led to
It crosses heat exchange station 48 and carries out heat supply.
In the present embodiment, according to user's thermoelectricity demand ratio, steam turbine 46 uses condensing-type steam turbine and back pressure type
Steam turbine combination.
In the present embodiment, ventilated gas oxidation device 3 connects gas exhaust piping 61, gas exhaust piping by change-over valve group 3
61 are equipped with air-introduced machine 62.Refrigeration system exhaust gas volumn is by 62 frequency control of flue gas pipeline end air-introduced machine.
In the present embodiment, flue gas type absorption refrigeration machine cooling system includes flue gas type Absorption Refrigerator 54, flue gas
The inlet side of type Absorption Refrigerator and high temperature bleed branch 51 and draws cold exhaust pipeline 52 and connect；High temperature bleed branch 51 with draw it is cold
Gas exhaust piping 52 be connected, for blend form flue gas type Absorption Refrigerator 54 needed for warm area flue gas；The absorption system of flue gas type
The outlet of cold 54 is connected with hand off valve 55, electric control valve 56 and refrigeration air-introduced machine 57 in turn；Draw cold exhaust pipeline 52
It is connect with gas exhaust piping 61, draws cold exhaust pipeline 2 equipped with electric control valve 53.High temperature bleed air line 41 and high temperature bleed branch
51, it is not provided with high temperature shutdown or regulating valve thereon.
In the present embodiment, high temperature bleed air line 41 and high temperature bleed branch 51 are poured by high temperature resistant pouring material, outside
Portion is equipped with insulating layer.
The course of work of the Distributed Integration energy supplying system is as follows:
Concentration is delivered to this system extraction through pumping plant lower than 8% mash gas extraction that cannot be directly used to internal combustion engine gas electricity
Gas pipeline enters through manual stop valve 11, the first dedusting dehydration device 12, fast cut valve door 13 and flow control valve 14 and blends
Device 16, dedusting dehydration device are used for a large amount of dirt and water mist that mash gas extraction carries during transportation, and fast cut valve door 13 is used for
Guarantee quickly to cut off mash gas extraction when blending after gas concentration is more than secure setting (1.2%), flow control valve 14 is according to pumping
Mash gas and ventilating gas blending operation concentration adjust mash gas extraction flow.Mash gas extraction and the ventilating tile from mine ventilation mouth
(concentration is extremely low, is lower than and 0.75%) is blended in mixing device to service requirement concentration (0.8~1%), mixing device 16 for this
Purpose is to keep the two blending more uniform, and the methane gas after blending is after 17 dedusting of the second dedusting dehydration device dehydration through commutating
Valve group 2 enters ventilated gas oxidation device 3.Methane gas is in passing through methane oxidized apparatus 3 through the first honeycomb heat accumulation body 35
About 700~800 DEG C are heated to, nonflame exothermic oxidation reaction occurs in combustion chamber 31, high-temperature flue gas flows through the second honeycomb
Heat storage 36 is discharged after heating the cooling of the second honeycomb heat accumulation body 36 through change-over valve group 2, and 3 schematic diagram of ventilated gas oxidation device is such as
Shown in attached drawing 2, methane gas is alternately from the first regenerative chamber 33,34 inlet and outlet of the second regenerative chamber, periodic reverse circulation.Watt
First the heat that this gas discharges in combustion chamber 31 falls through heat dissipation and flue gas loss, second can be added by way of high temperature bleed
To utilize.
Under winter condition, coal field has a large amount of heating demand and hot water load, passes through high temperature bleed (about 800~900
DEG C) hot fume of pipeline enters waste heat boiler, high temperature and high pressure steam is generated, high temperature and high pressure steam pushes the acting hair of steam turbine 46
Extraction opening is arranged in electricity, steam turbine 46, draws low-pressure steam to heat exchange station 48 and heats heat production water, is used for coal field office, dining room, place
House is for warm hot water supply.Particularly, the usually setting condensing turbine and back pressure steam turbines of steam turbine 46 closes form,
Improve Winter heat supply amount.In addition, ventilated gas oxidation device 3 is vented (70~100 DEG C) is used as wellhead anti-freezing under operating condition in winter
Wind.
Under summer operating mode, coal field has refrigeration duty demand, draws high-temperature flue gas and low-temperature smoke extraction by high temperature bleed branch 51
Blending is used as 54 heat source of flue gas type Absorption Refrigerator to about 400 DEG C.Wherein, draw and be provided with electric adjustable on cold exhaust pipeline 52
Valve 53 is saved, for adjusting cold smoke throughput.This system uses flue gas type Absorption Refrigerator, absorbs compared to steam or hot-water type
Formula refrigeration machine energy efficiency coefficient is higher.
In system, high temperature bleed pipeline after waste heat boiler 42 and flue gas type Absorption Refrigerator 54 is respectively arranged with manually
Stop valve 55 and electric control valve 56 are freezed 57 frequency control high temperature amount of air entrainment of air-introduced machine in operation by rear end of pipeline, only
When being difficult to complete air quantity adjusting by air-introduced machine, pass through 56 auxiliary adjustment pipeline air quantity of electric control valve.The power generation of generator 47 is adopted
With " grid-connected online " mode, institute's generated energy preferentially gives coal field production and living to supply, extra electricity online.
The Distributed Integration energy supplying system provided in this embodiment for recycling ventilating gas, realizes and discharges to coal field
Super low concentration ventilating gas recycle, reduce greenhouse gas emission, meanwhile, realized by high temperature bleed cascade utilization
The purpose of system power generation, heat supply and cooling supply.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of Distributed Integration energy supplying system for recycling ventilating gas, which is characterized in that blend supply system including gas
System, change-over valve group, ventilated gas oxidation device, waste heat boiler and steam turbine power generation and heat supply system and the absorption system of flue gas type
Cold refrigeration system；
The gas blending feed system is connect by the change-over valve group with the ventilated gas oxidation device, is used for as institute
Ventilated gas oxidation device is stated to provide by the methane gas after mash gas extraction and ventilating gas blending；
The ventilated gas oxidation device passes through high temperature bleed air line and the waste heat boiler and steam turbine power generation and heat supply system
Connection is powered and supplies to the waste heat boiler and steam turbine power generation and heat supply system for providing heat source by high temperature bleed
Heat；
The ventilated gas oxidation device is used for by high temperature bleed branch and the flue gas type absorption refrigeration machine cooling system
Heat source, which is provided, by high temperature bleed carries out cooling supply to the flue gas type absorption refrigeration machine cooling system.
2. a kind of Distributed Integration energy supplying system for recycling ventilating gas according to claim 1, which is characterized in that
The gas blending feed system includes mash gas extraction pipeline, ventilating gas pipeline and mixing device, the mash gas extraction pipeline
Inlet side for being connect with mash gas extraction pumping plant, and be successively arranged hand off valve, the first dedusting dehydration device, fast cut valve door and
Flow control valve；The inlet side of the ventilating gas pipeline is used to export with ventilating gas and connect, and is equipped with motor switch butterfly valve；Institute
The outlet for stating mash gas extraction pipeline and ventilating gas pipeline is connect with the inlet side of the mixing device, the outlet of the mixing device
It is connect by the second dedusting dehydration device with the change-over valve group.
3. a kind of Distributed Integration energy supplying system for recycling ventilating gas according to claim 2, which is characterized in that
The ventilated gas oxidation device includes that the bilateral regenerative chamber separated by insulated wall and combustion chamber form, and the regenerative chamber is filled with
Honeycomb type heat storage.
4. a kind of Distributed Integration energy supplying system for recycling ventilating gas according to claim 3, which is characterized in that
The waste heat boiler and steam turbine power generation and heat supply system include waste heat boiler and steam turbine, the inlet side of the waste heat boiler with
The high temperature bleed air line connection, outlet are connected with hand off valve, electric control valve and waste heat boiler air-introduced machine in turn；
The steam turbine is connect by steam pipework with the waste heat boiler, and is supplied by generator connected to it
Electricity；The steam turbine is connect by steam pipework with heat exchange station, carries out heat supply by the heat exchange station.
5. a kind of Distributed Integration energy supplying system for recycling ventilating gas according to claim 4, which is characterized in that
The steam turbine uses condensing-type steam turbine and back pressure steam turbine combination.
6. a kind of Distributed Integration energy supplying system for recycling ventilating gas according to claim 4, which is characterized in that
The ventilated gas oxidation device connects gas exhaust piping by the change-over valve group, and the gas exhaust piping is equipped with air-introduced machine.
7. a kind of Distributed Integration energy supplying system for recycling ventilating gas according to claim 6, which is characterized in that
The flue gas type absorption refrigeration machine cooling system includes flue gas type Absorption Refrigerator, the flue gas type Absorption Refrigerator
Inlet side and high temperature bleed branch and draw cold exhaust piping connection；The high temperature bleed branch is connected with the cold exhaust pipeline that draws,
For blend form the flue gas type Absorption Refrigerator needed for warm area flue gas；The outlet of the flue gas type Absorption Refrigerator
It is connected with hand off valve, electric control valve and refrigeration air-introduced machine in turn；It is described to draw cold exhaust pipeline and gas exhaust piping company
It connects, the cold exhaust pipeline that draws is equipped with electric control valve.
8. a kind of Distributed Integration energy supplying system for recycling ventilating gas according to claim 7, which is characterized in that
The high temperature bleed air line and high temperature bleed branch routing high temperature resistant pouring material pour, and outside is equipped with insulating layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821246009.0U CN209083351U (en) | 2018-08-03 | 2018-08-03 | A kind of Distributed Integration energy supplying system recycling ventilating gas |
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| CN201821246009.0U CN209083351U (en) | 2018-08-03 | 2018-08-03 | A kind of Distributed Integration energy supplying system recycling ventilating gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372601A (en) * | 2018-08-03 | 2019-02-22 | 中国大唐集团科学技术研究院有限公司 | A kind of Distributed Integration energy supplying system recycling ventilating gas |
| CN113188360A (en) * | 2021-05-25 | 2021-07-30 | 中煤科工集团重庆研究院有限公司 | Multifunctional molten salt heat storage and supply method and system based on gas heat storage oxidation, power generation waste heat and valley electricity |
-
2018
- 2018-08-03 CN CN201821246009.0U patent/CN209083351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372601A (en) * | 2018-08-03 | 2019-02-22 | 中国大唐集团科学技术研究院有限公司 | A kind of Distributed Integration energy supplying system recycling ventilating gas |
| CN113188360A (en) * | 2021-05-25 | 2021-07-30 | 中煤科工集团重庆研究院有限公司 | Multifunctional molten salt heat storage and supply method and system based on gas heat storage oxidation, power generation waste heat and valley electricity |
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