CN208996697U - A kind of equipment system using ultralow dense coal bed gas - Google Patents
A kind of equipment system using ultralow dense coal bed gas Download PDFInfo
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- CN208996697U CN208996697U CN201821278975.0U CN201821278975U CN208996697U CN 208996697 U CN208996697 U CN 208996697U CN 201821278975 U CN201821278975 U CN 201821278975U CN 208996697 U CN208996697 U CN 208996697U
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Abstract
A kind of equipment system using ultralow dense coal bed gas, is related to mine energy conservation technical field of emission reduction.The above-mentioned equipment system using ultralow dense coal bed gas includes blending air duct, gas oxidation section, equipment workshop section and detecting and controlling system；Blend half ball cover for being symmetrical arranged on the inner sidewall of the first cylinder of air duct and offering through-hole；Gas oxidation section includes that sequentially end to end preheater and combustion oxidation room, gaseous mixture become to carry the flue gas of heat after combustion oxidation room is burnt；Equipment workshop section includes the First Heat Exchanger being sequentially communicated, the second heat exchanger and pit shaft, flue gas returns to preheater after heat is transmitted to soft water by First Heat Exchanger, the waste heat of flue gas is transmitted to gaseous mixture, heat is transmitted to antifreeze wind in the second heat exchanger by the soft water for obtaining heat.The utility model can be realized the utilization of energy gas in coal bed gas and by the way that flue gas returned to preheater, and the waste heat that flue gas carries is transmitted to gaseous mixture, realizes the recycling of energy.
Description
Technical field
The utility model relates to mine energy conservation technical field of emission reduction, utilize ultralow dense coal bed gas in particular to a kind of
Equipment system.
Background technique
The energy is the important material base for supporting economic growth and social progress, and the advanced energy of development efficiently, clean is dynamic
Force system is the great demand of Science in Future in China energy system construction.The fast-developing energy source and power work to China of China's economy
More stringent requirements are proposed for industry, and the energy shortage problem in China is made to become more serious.In order to guarantee that China's economy continues, at a high speed
Development, it is necessary to solve the problems, such as or alleviate the energy shortage in puzzlement China.
Method of Mine Ventilation arranges coal bed gas, i.e., is discharged into the coal bed gas in atmosphere with mine ventilation during coal production, flow is big, coal
Main component is methane in layer gas.For super low concentration coal bed gas (methane mass concentration is below 0.3%~3%), item is utilized
Part is more complicated.The methane content of super low concentration coal bed gas is extremely low, if carrying out concentrate or purification, whether pressure-variable adsorption, still
Temp.-changing adsorption separation, in face of the huge air of content and rare methane, it is necessary to which offer is more pressurizeed relative to methane production
Energy consumption or heating energy consumption.Further, since the air-fuel ratio range of methane content in super low concentration coal bed gas far beyond methane,
Also it can not directly burn.Thus, super low concentration coal bed gas usually directly empties, and has not only caused huge energy waste, but also pollution ring
Border.
Utility model content
The purpose of this utility model is to provide a kind of equipment systems using ultralow dense coal bed gas, can be realized
The utilization of energy gas and by the way that flue gas is returned to preheater in coal bed gas, sends the waste heat that flue gas carries to gaseous mixture, real
The recycling of existing energy.
The embodiments of the present invention are achieved in that
A kind of equipment system using ultralow dense coal bed gas comprising blend air duct, for aoxidizing super low-concentration gas
Gas oxidation section, for pit shaft provide heat equipment workshop section and detecting and controlling system, blend air duct, gas oxygen
Chemical industry section is sequentially connected to equipment workshop section, is used for monitoring process parameter, and adjust the detecting and controlling system of each pipeline flow
It is connected to pipeline and equipment；
Blending air duct includes the first cylinder, conically shaped and the second cylinder of sequentially head and the tail connection, and the diameter of the first cylinder is small
In the diameter of the second cylinder, the first cylinder is far from being provided with air intlet, Imported gas and ultralow on one end of the second cylinder
Concentration gas import, air intlet are arranged on the rounded bottom surface of the first cylinder, Imported gas and ultralow concentration gas import
Axisymmetrical distribution on the inner sidewall of the first cylinder and along the first cylinder is set, is additionally provided on the inner sidewall of the first cylinder
Half ball cover of Imported gas and ultralow concentration gas import is covered, half ball cover is recessed to the direction of the axis close to the first cylinder
And half offers multiple through-holes on ball cover；
Gas oxidation section includes that sequentially end to end compressor, preheater and combustion oxidation room, blending air duct will mix
The compressor that gas is sent to gas oxidation section is closed, gaseous mixture successively passes through the pressurization of compressor, the heating of preheater and combustion
Become to carry the flue gas of heat after burning the burning of oxidizing chamber, and is sent to equipment workshop section；
Equipment workshop section includes the First Heat Exchanger being sequentially communicated, the second heat exchanger and pit shaft, and First Heat Exchanger is by cigarette
The heat of gas is transmitted to soft water, and the flue gas flowed out from First Heat Exchanger returns to preheater, sends the waste heat of flue gas to gaseous mixture, obtains
Heat is transmitted to antifreeze wind in the second heat exchanger by the soft water to heat.
Further, in the utility model preferred embodiment, on the inner wall of above-mentioned the first cylinder in axial direction on
It is arranged at intervals at least two baffles, baffle includes first end and second end, and first end is connected to the inner wall of the first cylinder, and second
End is arranged with inner wall interval；The installation site of the first end of two neighboring baffle is staggered in the circumferential direction of the first cylinder.
Further, in the utility model preferred embodiment, the installation position of the first end of above-mentioned two neighboring baffle
The circumferential direction in the first cylinder is set to be staggered 180 degree.
Further, in the utility model preferred embodiment, venthole is offered on above-mentioned baffle.
Further, it in the utility model preferred embodiment, is provided in the accommodation space that above-mentioned conically shaped surrounds
The turbolator of cone, the center line of turbolator are overlapped with the axial line of the first cylinder.
The beneficial effect of the utility model embodiment is: a kind of equipment system using ultralow dense coal bed gas, can
The utilization that energy gas in coal bed gas is realized by coal bed gas oxidation section, plays environmental-protection function.And above system can lead to
It crosses and flue gas is returned into First Heat Exchanger, the waste heat that flue gas carries is sent to the gaseous mixture come out from compressor, realizes energy
It recycles.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is schematic diagram of the utility model embodiment using the equipment system of ultralow dense coal bed gas；
Fig. 2 is the schematic diagram that the utility model embodiment blends air duct；
Fig. 3 is another schematic diagram that the utility model embodiment blends air duct；
Fig. 4 is the schematic diagram of the utility model embodiment combustion oxidation room.
Icon: 100- utilizes the equipment system of super low-concentration gas；110- natural gas storage tank；120- blends air duct；
140- gas oxidation section；150- equipment workshop section；160- detecting and controlling system；121- the first cylinder；122- conically shaped；
123- the second cylinder；124- air intlet；125- Imported gas；126- ultralow concentration gas import；127- rounded bottom surface；
Half ball cover of 128-；129- through-hole；131- baffle；132- first end；133- second end；134- venthole；First side of flowing 135-
To；The second flow direction 136-；137- accommodation space；138- turbolator；141- compressor；142- preheater；143- burning oxygen
Change room；144- entrance；145- preheating section；146- oxidation panel；147- outlet section；151- First Heat Exchanger；152- second exchanges heat
Device；153- reservoir；154- pit shaft；161- flue gas analyzer；162- monitor；163- valve；164- air escape warning system；
165- CPU.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation of the instructions such as term " center ", "upper", "inner" or
Positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the side usually put
Position or positional relationship, are merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of equipment systems 100 using ultralow dense coal bed gas comprising day
Right gas storage tank 110, blending air duct 120, gas oxidation section 140, the antifreeze workshop section 150 of cylinder and detecting and controlling system 160, natural gas
Storage tank 110, blending air duct 120, gas oxidation section 140 are sequentially connected to equipment workshop section 150.Detecting and controlling system 160
It is connected to pipeline and equipment, for monitoring the technological parameter of each pipeline and equipment, and adjusts each pipeline flow.
Natural gas storage tank 110 is used for natural gas-storing, and natural gas is sent to blending air duct 120 by pipeline.
Referring to figure 2., blending air duct 120 is used to mix natural gas, super low concentration coal bed gas and air, so that ultralow dense
Degree coal bed gas may be implemented to be burned with the help of natural gas and air, realize that oxidation utilizes the energy of super low concentration coal bed gas
Amount realizes the reasonable utilization of the energy, and effectively realizes environmental protection.Blend the first circle that air duct 120 includes sequentially head and the tail connection
Cylinder 121, conically shaped 122 and the second cylinder 123.The diameter of the first cylinder 121 is less than the diameter of the second cylinder 123.When gas is logical
When crossing the first cylinder 121, because the diameter of the first cylinder 121 is smaller, gas flow rate is big, and gas with various directly may be implemented quickly
Mixing.The first cylinder 121 is provided with air intlet 124, Imported gas 125 and ultralow on one end far from the second cylinder 123
Concentration gas import 126.Air intlet 124 is arranged on the rounded bottom surface 127 of the first cylinder 121, Imported gas 125 and super
Low concentration gas import 126 is arranged on the inner sidewall of the first cylinder 121 and is distributed along the axisymmetrical of the first cylinder 121.On
Stating setting, the direction of motion is opposite when natural gas and super low concentration coal bed gas can be made to enter blending air duct 120, it is easier to realize
The mixing of natural gas and super low concentration coal bed gas.If Imported gas 125 and ultralow concentration gas import 126 are designed in circle
On bottom surface 127, natural gas and super low concentration coal bed gas can be parallel to the axis of the first cylinder 121 when entering the first cylinder 121
Movement, it is not easy to mix, Imported gas 125 and ultralow concentration gas import 126 are symmetricly set on the first circle in the present embodiment
On the inner sidewall of cylinder 121, the direction of motion of natural gas and super low concentration coal bed gas is opposite, natural gas and super low concentration easy to accomplish
The mixing of coal bed gas provides strong safety guarantee for the reaction of subsequent combustion oxidation.On the inner sidewall of the first cylinder 121 also
It is provided with half ball cover 128 for covering Imported gas 125 and ultralow concentration gas import 126, above-mentioned half ball cover 128 is towards close
The direction of the axis of the first cylinder 121 is recessed, and multiple through-holes 129 are offered on above-mentioned half ball cover 128.When natural gas and surpass
When low concentration gas passes through above-mentioned half ball cover 128, natural gas and ultralow concentration gas by the through-hole 129 on half ball cover 128 to
All directions movement, greatly increases the mixing of natural gas and ultralow concentration gas.
Referring to figure 2. and Fig. 3, on the inner wall of the first cylinder 121 in axial direction on be arranged at intervals at least two baffles
131.Baffle 131 includes first end 132 and second end 133.Above-mentioned first end 132 is connected to the inner wall of the first cylinder 121, and second
End 133 is arranged with inner wall interval.Week of the installation site of the above-mentioned first end 132 of two neighboring baffle 131 in the first cylinder 121
It is staggered 180 degree to direction, and is provided with venthole 134 on above-mentioned baffle 131.Air, natural gas and super low concentration coal bed gas exist
When flowing through the first cylinder 121, because of the setting of the baffle 131 with venthole 134, gas can be from the first single flow direction
135, become the mixing of the first flow direction 135 and the second flow direction 136.Greatly increase in the gas process of circulation away from
From increasing the mixing between air, natural gas and ultralow concentration gas.It should be noted that in the present embodiment, being provided with
Baffle 131, and the installation site of the first end 132 of two neighboring above-mentioned baffle 131 is staggered in the circumferential direction of the first cylinder 121
180 degree.In other embodiments, the installation site of baffle 131 or first end 132 can also be not provided in the first cylinder 121
Circumferential direction on be staggered 90 degree -180 degree, can realize that the present embodiment increases flow distance, enhance the technical effect of mixing, all
In the protection scope of the present embodiment.It should be noted that can also not have venthole 134 on baffle 131, gas only has second
Flow direction 136 is circulated, and also be can be realized the present embodiment increase flowing specifically, is enhanced the technical effect of mixing, all in this implementation
In the protection scope of example.
Please continue to refer to Fig. 2, it is provided with the turbolator 138 of cone in the accommodation space 137 that conically shaped 122 surrounds, disturbs
The center line of stream 138 is overlapped with the axial line of the first cylinder 121, and the setting of above-mentioned turbolator 138, which can cause air flow through, disturbs
Whirlpool is formed during stream 138, increases the mixability of natural gas, ultralow concentration gas and air.
Please continue to refer to Fig. 1, gas oxidation section 140 includes sequentially end to end compressor 141,142 and of preheater
Combustion oxidation room 143.Gaseous mixture is sent to the compressor 141 of gas oxidation section 140 by blending air duct 120, and gaseous mixture is successively
Become the cigarette of carrying heat after the pressurization of compressor 141, the heating of preheater 142 and the burning of combustion oxidation room 143
Gas, and it is sent to equipment workshop section 150.
Please continue to refer to Fig. 1, preheater 142 is tubular heat exchanger, and flue gas delivers heat to equipment workshop section 150
After return to above-mentioned preheater 142, waste heat is further transmitted to gaseous mixture.The recycling of fume afterheat is realized, reasonably will
Fume afterheat has saved the energy that gaseous mixture is needed in the burning of combustion oxidation room 143 for the heating before mixture combustion oxidation
Amount.
Referring to figure 4., combustion oxidation room 143 includes successively end to end entrance 144, preheating section 145, oxidation panel
146 and outlet section 147.Enter preheating section 145 through entrance 144 by the gaseous mixture that preheater 142 preheats, and in preheating section
145 are further preheated, then after the burning of oxidation panel 146, are discharged by outlet section 147.
Fig. 1 is please referred to, equipment workshop section 150 includes the First Heat Exchanger 151 being sequentially communicated, the second heat exchanger 152 storage
The heat of flue gas is transmitted to soft water by pond 153 and pit shaft 154, First Heat Exchanger 151, obtains the soft water of heat in the second heat exchanger
Heat is transmitted to antifreeze wind by 152.From combustion oxidation room 143 come out flue gas by First Heat Exchanger 151 shell side and soft water into
After row heat exchange, preheater 142 is returned, waste heat is transmitted to gaseous mixture.Soft water is obtained by the tube side of First Heat Exchanger 151 from flue gas
After heat, the tube side of the second heat exchanger 152 is flowed to.The heat of carrying is transmitted in the soft water of 152 high temperature of the second heat exchanger antifreeze
Heat is transmitted to pit shaft 154 by wind, antifreeze wind.The soft water flowed out from the second heat exchanger 152 is sent to reservoir 153, in reservoir
First Heat Exchanger 151 is returned to after 153 coolings, while the water in reservoir 153 can also add.
Fig. 1 is please referred to, detecting and controlling system 160 is used for monitoring process parameter, and adjusts each pipeline flow.Above-mentioned detection control
System 160 processed is connected to pipeline and equipment, and detecting and controlling system 160 includes that 143 inlet and outlet of combustion oxidation room is arranged in
Flue gas analyzer 161, the monitor 162 being arranged on each road pipeline, the valve 163 being arranged on each road pipeline, setting are being fired
Burn the air escape warning system 164 and CPU 165 of 143 import of oxidizing chamber.The import of above-mentioned CPU 165 and cigarette
Gas analyzer 161, monitor 162 and air escape warning system 164 connect.The outlet of CPU 165 is connect with valve 163.
The data that central processing unit is transmitted by processing analysis flue gas analyzer 161, monitor 162 and air escape warning system 164, carry out
After analysis, valve 163 is issued and is instructed, the opening degree of control valve 163.Protect air, ultralow concentration gas and natural gas
Suitable ratio is held to burn.
Working principle using the equipment system 100 of ultralow dense coal bed gas is from the natural of natural gas storage tank 110
Gas, the super low concentration coal bed gas from Trunk Line and air pass through air intlet 124, Imported gas 125 and ultralow dense respectively
It spends gas import 126 and enters blending air duct 120, and mixed in blending air duct 120.The first flowing side is formed by baffle 131
To 135 and the second mixed flowing in flow direction 136, flow path is increased, better flow effect is realized.From blending wind
The gaseous mixture flowed out in cylinder 120 is sent to combustion oxidation room after the compression of compressor 141 and the preheating of preheater 142
143 become flue gas discharge after combustion oxidation.Flue gas returns after the heat of carrying is transmitted to soft water by the first preheater 142
Remaining waste heat is transmitted to and is discharged after the gaseous mixture that compressor 141 comes out by preheater 142.Heat is obtained through First Heat Exchanger 151
The soft water of amount returns to reservoir 153 after the heat of carrying is transmitted to antifreeze wind by the second heat exchanger 152.Obtain the anti-of heat
Freeze hearsay and give pit shaft 154, antifreeze wind recycles between pit shaft 154 and the second heat exchanger 152.
In conclusion the utility model provides a kind of equipment system 100 using ultralow dense coal bed gas, can pass through
Gas oxidation section 140 realizes the utilization of energy gas in gas, plays environmental-protection function.And above system can be by by cigarette
Gas returns to First Heat Exchanger 151, and the waste heat that flue gas carries is sent to the gaseous mixture come out from compressor 141, realizes energy
It recycles.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of equipment system using ultralow dense coal bed gas, which is characterized in that it includes blending air duct, for aoxidizing
State the gas oxidation section of super low-concentration gas, for providing equipment workshop section and the detecting and controlling system of heat, institute to pit shaft
It states blending air duct, the gas oxidation section to be sequentially connected to the equipment workshop section, is used for monitoring process parameter, and adjust
The detecting and controlling system of each pipeline flow is connected to pipeline and equipment；
It is described blending air duct include sequentially head and the tail connection the first cylinder, conically shaped and the second cylinder, described the first cylinder it is straight
Diameter be less than described the second cylinder diameter, described the first cylinder be provided on one end far from described the second cylinder air intlet,
Imported gas and ultralow concentration gas import, the air intlet is arranged on the rounded bottom surface of described the first cylinder, described
Imported gas and the ultralow concentration gas import are arranged on the inner sidewall of described the first cylinder and along described the first cylinder
Axisymmetrical distribution, be additionally provided on the inner sidewall of described the first cylinder and cover the Imported gas and the super low concentration
Half ball cover of gas import, half ball cover are opened in the direction of the axis close to described the first cylinder recess and half ball cover
Equipped with multiple through-holes；
The gas oxidation section includes sequentially end to end compressor, preheater and combustion oxidation room, the blending air duct
Gaseous mixture is sent to the compressor of the gas oxidation section, the gaseous mixture successively passes through the pressurization of the compressor, institute
Become to carry the flue gas of heat after stating the heating of preheater and the burning of the combustion oxidation room, and it is anti-to be sent to the pit shaft
Freeze workshop section；
The equipment workshop section includes the First Heat Exchanger being sequentially communicated, the second heat exchanger and pit shaft, the First Heat Exchanger
The heat of the flue gas is transmitted to soft water, the flue gas flowed out from the First Heat Exchanger returns to the preheater, will be described
The waste heat of flue gas sends the gaseous mixture to, obtain the soft water of heat heat is transmitted in second heat exchanger it is antifreeze
Wind.
2. a kind of equipment system using ultralow dense coal bed gas according to claim 1, which is characterized in that described
On the inner wall of one cylinder in axial direction on be arranged at intervals at least two baffles, the baffle includes first end and second end,
The first end is connected to the inner wall of described the first cylinder, and the second end and the inner wall interval are arranged；It is two neighboring described
The installation site of the first end of baffle is staggered in the circumferential direction of described the first cylinder.
3. a kind of equipment system using ultralow dense coal bed gas according to claim 2, which is characterized in that adjacent two
The installation site of the first end of a baffle is staggered 180 degree in the circumferential direction of described the first cylinder.
4. a kind of equipment system using ultralow dense coal bed gas according to claim 2, which is characterized in that the gear
Venthole is offered on plate.
5. a kind of equipment system using ultralow dense coal bed gas according to claim 1 or 4, which is characterized in that institute
State the turbolator that cone is provided in the accommodation space that conically shaped surrounds, the center line of the turbolator and described the first cylinder
Axial line be overlapped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821278975.0U CN208996697U (en) | 2018-08-09 | 2018-08-09 | A kind of equipment system using ultralow dense coal bed gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821278975.0U CN208996697U (en) | 2018-08-09 | 2018-08-09 | A kind of equipment system using ultralow dense coal bed gas |
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| CN208996697U true CN208996697U (en) | 2019-06-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237370A (en) * | 2021-05-12 | 2021-08-10 | 中煤科工集团重庆研究院有限公司 | Multi-medium efficient step heat exchange method for gas heat storage oxidation high-temperature flue gas |
-
2018
- 2018-08-09 CN CN201821278975.0U patent/CN208996697U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237370A (en) * | 2021-05-12 | 2021-08-10 | 中煤科工集团重庆研究院有限公司 | Multi-medium efficient step heat exchange method for gas heat storage oxidation high-temperature flue gas |
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