CN211475965U - Ventilation air methane processing system - Google Patents
Ventilation air methane processing system Download PDFInfo
- Publication number
- CN211475965U CN211475965U CN201922194867.6U CN201922194867U CN211475965U CN 211475965 U CN211475965 U CN 211475965U CN 201922194867 U CN201922194867 U CN 201922194867U CN 211475965 U CN211475965 U CN 211475965U
- Authority
- CN
- China
- Prior art keywords
- ventilation air
- gas
- heat exchanger
- gas inlet
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a ventilation air methane processing system, include: a blending device having a ventilation air inlet and a gas inlet for blending ventilation air and gas to form a mixture; the oxidizing device is communicated with the gas mixing device and is used for oxidizing the mixture and generating high-temperature flue gas, and the oxidizing device is provided with a first flue gas outlet; and the first flue gas outlet is communicated with the combined cooling heating and power device, and the combined cooling heating and power device can use the high-temperature flue gas for refrigeration, heat supply or power supply. According to the utility model discloses ventilation air methane processing system forms the mixture through mixing ventilation air methane and gas to among letting in the oxidation device, make the mixture by the complete oxidation, and be used for refrigeration, heat supply or power supply with the heat energy of the high temperature flue gas that obtains, avoided methane direct discharge to cause the influence to the environment from this, this ventilation air methane processing system does not have secondary pollution, thereby can satisfy the environmental protection requirement of pollutant zero release.
Description
Technical Field
The utility model relates to a colliery technical field particularly, relates to a ventilation air methane processing system.
Background
In the related technology, the methane concentration in most of ventilation air methane is about 0.3%, because the ventilation air methane concentration is lower, coal mines are usually directly discharged to the atmosphere, most of low-concentration gas extracted by coal mine pump stations is also evacuated, the methane gas has a strong greenhouse effect and easily affects the environment, and the destruction and utilization of the methane in the ventilation air methane belong to the important problems of energy conservation and emission reduction and the blank to be filled urgently, so that the methane gas has research value.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. To this end, an object of the present invention is to provide a ventilation air methane processing system, which can realize zero emission of pollutants.
According to the utility model discloses ventilation air methane processing system, include: a blending device having a ventilation air inlet and a gas inlet for blending ventilation air and gas to form a mixture; the oxidizing device is communicated with the gas mixing device and is used for oxidizing the mixture and generating high-temperature flue gas, and the oxidizing device is provided with a first flue gas outlet; and the first flue gas outlet is communicated with the combined cooling heating and power device, and the combined cooling heating and power device can use the high-temperature flue gas for refrigeration, heat supply or power supply.
According to the utility model discloses ventilation air methane processing system forms the mixture through mixing ventilation air methane and gas to among letting in the oxidation device, make the mixture by the complete oxidation, and be used for refrigeration, heat supply or power supply with the heat energy of the high temperature flue gas that obtains, realized cold, heat, electricity trigeminy confession, avoided methane direct discharge to cause the influence to the environment from this, this ventilation air methane processing system does not have secondary pollution, thereby can satisfy the environmental protection requirement of pollutant zero release.
According to the utility model discloses ventilation air methane processing system, oxidation unit still has the second exhanst gas outlet, first exhanst gas outlet with second exhanst gas outlet switchably ground break-make, second exhanst gas outlet and external atmosphere intercommunication.
According to the utility model discloses ventilation air methane processing system, oxidation unit includes combustion chamber, first heat exchanger and second heat exchanger, first heat exchanger with the second heat exchanger all with the combustion chamber intercommunication, wherein, first heat exchanger has first gas inlet and first gas discharge port, the second heat exchanger has second gas inlet and second gas discharge port, at least one in first gas inlet and the second gas inlet with mixing device intercommunication, at least one in first gas discharge port and the second gas discharge port communicates with the external world.
Optionally, the first heat exchanger and the second heat exchanger are in series, and the combustion chamber is located between the first heat exchanger and the second heat exchanger.
Specifically, the blending device is selectively communicated with one of the first gas inlet and the second gas inlet, when the blending device is communicated with the first gas inlet, the first gas discharge port is blocked, and the first gas inlet is communicated with the second gas discharge port; when the blending device is communicated with the second gas inlet, the second gas discharge opening is blocked, and the second gas inlet is communicated with the first gas discharge opening.
The mixing device is communicated with the first gas inlet, and the mixing device is disconnected with the second gas inlet; controlling the blending device to be disconnected from the first gas inlet when the blending device is communicated with the second gas inlet.
Optionally, the control valve is a two-position three-way valve; or the control valve comprises a first control part and a second control part, the first control part is arranged between the blending device and the first gas inlet to control the on-off between the blending device and the first gas inlet, and the second control part is arranged between the blending device and the second gas inlet to control the on-off between the blending device and the second gas inlet.
According to the utility model discloses ventilation air methane processing system, cold and heat power cogeneration device includes: the boiler is communicated with the first flue gas outlet and generates high-temperature and high-pressure steam; a steam turbine in communication with the boiler for using steam for power generation; a first heat exchanger in communication with the boiler, the first heat exchanger adapted to convert steam to hot water for heating.
Specifically, the steam turbine is communicated with the first heat exchanger, and saturated steam in the steam turbine can be extracted to the first heat exchanger.
Further, the combined cooling, heating and power device also comprises a second heat exchanger, the second heat exchanger is communicated with the boiler, and the second heat exchanger is suitable for converting steam into hot air.
Furthermore, the combined cooling heating and power device also comprises a refrigerator, wherein the refrigerator is communicated with the boiler and is driven by steam to refrigerate.
According to the utility model discloses ventilation air methane processing system, the blending device includes blending guide plate and blending static mixer, the ventilation air methane with the gas forms after through the secondary blending the mixture.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic block diagram of a ventilation air methane treatment system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an oxidation device according to an embodiment of the present invention.
Reference numerals:
the ventilation air methane processing system 100 is provided with a ventilation air methane processing system,
the mixing device (10) is provided with a mixing device,
an oxidizer 20, a first flue gas outlet 201, a second flue gas outlet 202, a first heat exchanger 21, a first gas inlet 211, a first gas discharge outlet 212, a second heat exchanger 22, a second gas inlet 221, a second gas discharge outlet 222, a combustion chamber 23, a control valve 24,
a combined cooling heating and power generation device 30, a boiler 31, a steam turbine 32, a first heat exchanger 33, a second heat exchanger 34, a temperature and pressure reducing device 35, a generator 36, a building 37, a ventilation shaft 38, a refrigerator 39,
the system comprises a return air shaft diffusion tower 40, a gas drainage pump station 50 and equipment to be refrigerated 60.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A ventilation air methane processing system 100 according to an embodiment of the present invention is described below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, a ventilation air processing system 100 according to an embodiment of the present invention includes: a blending device 10, an oxidation device 20 and a combined cooling, heating and power generation device 30.
The blending device 10 is provided with a ventilation air inlet and a gas inlet and is used for blending ventilation air and gas to form a mixture; the oxidation device 20 is communicated with the gas blending device 10, the oxidation device 20 is used for oxidizing the mixture and generating high-temperature flue gas, wherein the oxidation device 20 is provided with a first flue gas outlet 201, the first flue gas outlet 201 is communicated with the combined cooling, heating and power device 30, and the combined cooling, heating and power device 30 can use the high-temperature flue gas for refrigeration, heating or power supply and realize combined cooling, heating and power supply.
According to the utility model discloses ventilation air methane processing system 100, comprehensive utilization colliery gas resource, through forming the mixture with ventilation air methane and gas mixing, and let in oxidation unit 20, make the mixture by the complete oxidation, and the heat energy of the high temperature flue gas that will obtain is used for refrigerating, and/or the heat supply, and/or the power supply, cold, heat, the confession of electricity trigeminy has been realized, thereby avoided the direct emission of methane to cause the influence to the environment, this ventilation air methane processing system 100 does not have secondary pollution, thereby can satisfy the environmental protection requirement of pollutant zero release.
According to an embodiment of the utility model, the blending device 10 includes blending guide plate and blending static mixer, the blending device 10 has the collection part, specifically, the ventilation air methane person in charge gathers the ventilation air methane (its methane concentration scope is 0.1% -0.8% usually) through the induced air cover negative pressure from return air shaft diffusion tower 40, in the gas drainage pump station 50 region, the ventilation air methane person in charge gathers gas (methane concentration is at 3% -30%) through the induced air cover negative pressure from the gas evacuation pipe, the blending point of ventilation air methane and gas (namely the intersection of ventilation air methane person in charge and gas evacuation pipe) sets up the blending guide plate, the turbulence can be strengthened to the guide plate, in order to do benefit to two kinds of gas mixture realizes once blending; and (3) setting a static mixer within 10 meters downstream of the blending point for secondary blending, and finally uniformly blending the two gases within 30 meters behind the secondary blending point, wherein the target value of the blended gas concentration is 0.8-1.2%, and the difference of the cross-section methane concentration is within +/-10%, preferably the target value is 1.2%. In addition, the position is also provided with a methane concentration monitoring probe to monitor the methane concentration value, so that a valve at a gas drainage position can be adjusted according to the monitoring value in the actual operation of the system, the processing requirement of an oxidation device is met, and the normal operation of the system is ensured.
In some examples, the blending static mixer is comprised of a series of guide vanes of different angles and sizes, thereby enhancing gas turbulence, rapidly homogenizing the blending, and avoiding stratification. Further, a dehydrator is further arranged in the blending device 10, and liquid and fine dust particles contained in the mixture are removed by the dehydrator, so that the subsequent oxidation effect is prevented from being influenced by impurity doping.
In some examples, the blending device 10 is further provided with a purging structure, the purging structure is composed of a purging fan, a valve and a pipeline, and the purging structure is started to purge when the blending device 10 is started or stopped so as to prevent gas from accumulating and layering in the pipeline.
According to the utility model discloses an embodiment, oxidation unit 20 has first exhanst gas outlet 201 and second exhanst gas outlet 202, break-make with second exhanst gas outlet 202 changeable ground of first exhanst gas outlet 201, when the mixture total amount is less, the high temperature flue gas that oxidation unit 20 produced is less thereupon, therefore through communicating second exhanst gas outlet 202 with external atmosphere, make in the atmosphere that the high temperature flue gas can directly discharge, methane is by the oxidation and can not cause the pollution to the atmosphere, and no secondary pollution, satisfy the environmental protection requirement of pollutant zero release.
According to a specific embodiment of the present invention, the oxidation apparatus 20 comprises a combustion chamber 23, a first heat exchanger 21 and a second heat exchanger 22, both the first heat exchanger 21 and the second heat exchanger 22 are communicated with the combustion chamber 23, wherein the first heat exchanger 21 has a first gas inlet 211 and a first gas discharge port 212, the second heat exchanger 22 has a second gas inlet 221 and a second gas discharge port 222, the blending apparatus 10 can be communicated with the first gas inlet 211 and the second gas inlet 221, the first gas discharge port 212 can be communicated with the outside, and the second gas discharge port 222 can be communicated with the outside.
The first flue gas outlet 201 and the second flue gas outlet 202 are arranged on the combustion chamber 23, the mixture can generate high-temperature flue gas with the temperature of about 950 ℃ after undergoing flameless oxidation reaction in the oxidation device 20, and the high-temperature flue gas passes through the first flue gas outlet 201 and the second flue gas outlet 202
The second flue gas outlet 202 is used for heating, power generation or pollution-free emission.
Wherein each heat exchanger is filled with a medium with enough volume, small pressure drop and uniform heat transfer, thereby minimizing the amount of residues entrained in the mixture and improving the decomposition efficiency of methane; by arranging the two heat exchangers, the oxidation efficiency is further improved, and the oxidation treatment effect is good.
In some examples, the first heat exchanger 21 and the second heat exchanger 22 are connected in series, the combustion chamber 23 is located between the first heat exchanger 21 and the second heat exchanger 22, the mixture can enter the first heat exchanger 21 and then enter the combustion chamber 23 for combustion, the high temperature flue gas after combustion is discharged through the first flue gas outlet 201 or the second flue gas outlet 202, the entrained residue enters the second heat exchanger 22, and the generated low temperature flue gas is discharged through the second gas discharge port 222. Of course, the mixture may also enter the second heat exchanger 22 first and then enter the combustion chamber 23 for combustion, the high temperature flue gas after combustion is discharged through the first flue gas outlet 201 or the second flue gas outlet 202, the entrained residue enters the first heat exchanger 21, and the generated low temperature flue gas is discharged through the first gas discharge port 212.
In some examples, the blending device 10 is selectively communicated with one of the first gas inlet 211 and the second gas inlet 221, when the blending device 10 is communicated with the first gas inlet 211, the first gas discharge outlet 212 is blocked, the first gas inlet 211 is communicated with the second gas discharge outlet 222, the mixture firstly enters the first heat exchanger 21 and then enters the combustion chamber 23 for combustion, the high-temperature flue gas is discharged through the first flue gas outlet 201 or the second flue gas outlet 202, and the low-temperature flue gas is discharged through the second gas discharge outlet 222; when the blending device 10 is communicated with the second gas inlet 221, the second gas outlet 222 is blocked, the second gas inlet 221 is communicated with the first gas outlet 212, the mixture firstly enters the second heat exchanger 22 and then enters the combustion chamber 23 for combustion, high-temperature flue gas is discharged through the first flue gas outlet 201 or the second flue gas outlet 202, and low-temperature flue gas is discharged through the first gas outlet 212.
In some examples, the oxidation device 20 further comprises a control valve 24, the control valve 24 is arranged between the blending device 10 and the oxidation device 20 and used for controlling the on-off of the gas flow, and when the blending device 10 is communicated with the first gas inlet 211, the blending device 10 is controlled to be disconnected from the second gas inlet 221; when the blending device 10 is communicated with the second gas inlet 221, the blending device 10 is controlled to be disconnected from the first gas inlet 211.
In some examples, the control valve 24 includes a first control portion disposed between the blending device 10 and the first gas inlet 211 for controlling the on-off between the two, and a second control portion disposed between the blending device 10 and the second gas inlet 221 for controlling the on-off between the two, and the mixture is alternately flowed clockwise (in the direction shown in fig. 2) and counterclockwise (in the direction opposite to the direction shown in fig. 2) in the oxidation device 20 by switching the two control portions, and the switching of the gas flow direction is performed by PLC control.
In other examples, the control valve 24 is a two-position three-way valve, and the blending device 10 is communicated with the first gas inlet 211 or the blending device 10 is communicated with the second gas inlet 221 by switching the position of the valve body in the control valve 24, thereby allowing the mixture to flow clockwise (in the direction shown in fig. 2) and counterclockwise (in the direction opposite to the direction shown in fig. 2) in the oxidation device 20.
In some examples, the inner cavity of the oxidation device 20 is insulated with ceramic fiber cotton, and the heat exchanger is filled with high temperature resistant heat storage ceramic, which can store the energy carried by the oxidized high temperature flue gas for preheating the mixture mixed at the gas inlet. The combustion chamber 23 is heated by ignition with a fuel, such as a jet of propane, to maintain a temperature above the oxidation temperature of methane.
In some examples, the oxidation device 20 further has an induced draft fan, and the mixture is introduced through the induced draft fan, and the use power of the induced draft fan and the power of a motor matched with the induced draft fan are mainly determined according to the ventilation air volume and the path of the ventilation air of the oxidation device.
In some examples, the oxidation unit 20 may be programmed to call a remote service center or personnel to report any abnormal conditions, the oxidation unit 20 having a continuous emission monitoring system that can meter the gas inlet and gas outlet methane concentrations, and can enter data into a computer.
According to the utility model discloses oxidation unit 20 through setting up two heat exchangers, has improved oxidation efficiency, and the treatment effect is good. Experiments prove that the oxidation device 20 can oxidize and destroy methane, automatically and continuously operate under the condition that the concentration of the methane in the mixture at the gas inlet is not less than 0.27 percent, the lowest concentration of the methane for maintaining heat balance of the oxidation device 20 is more than 0.4 percent, and the oxidation efficiency is ensured to be more than 95 percent.
According to an embodiment of the present invention, the combined cooling, heating and power device 30 includes: the boiler 31, the steam turbine 32 and the first heat exchanger 33, the boiler introduces the high-temperature flue gas into the furnace chamber, and exchanges heat with water in the water pipe to produce high-temperature high-pressure steam; the steam turbine 32 is communicated with the boiler 31 and the generator 36 respectively, and the steam drives the steam turbine 32 to generate electricity so as to use the steam for generating electricity; the first heat exchanger 33 is communicated with the boiler 31, the high-temperature and high-pressure steam is subjected to temperature reduction and pressure reduction treatment by the temperature and pressure reducer 35, the steam is converted into hot water through the first heat exchanger 33, and the first heat exchanger 33 is communicated with a building 37 to supply heating for the building.
In some examples, high-temperature and high-pressure steam is introduced into the steam turbine 32 through a main steam pipeline, condensed water is firstly introduced into a condensed water heater, the condensed water is heated to about 100 ℃, and then enters a high-pressure deaerator, and the steam led out from a steam extraction port of the steam turbine 32 can be used as a steam source for a plant area such as heating of a coal mine plant area. The condensed water from the turbine is also fed back to the boiler 31.
In some specific examples, the steam turbine 32 is in communication with the first heat exchanger 33, the high-temperature and high-pressure steam drives a turbine generator to generate electricity, and part of saturated steam can be extracted from the middle stage of the steam turbine 32 in winter to supply heat, so as to realize cogeneration.
In some examples, the combined heat and power generation device 30 further includes a second heat exchanger 34, the second heat exchanger 34 is in communication with the boiler 31, and the second heat exchanger 34 is adapted to convert the steam into hot air, whereby the hot air can be passed into the ventilation shaft 38 for ventilation exhaust of the ventilation shaft 38.
In some examples, the combined cooling, heating and power device 30 further includes a refrigerator 39, the refrigerator 39 is communicated with the boiler 31, a temperature and pressure reduction device 35 can be disposed between the refrigerator 39 and the boiler 31, where the refrigerator 39 can be an absorption refrigerator, low-temperature and low-pressure steam is used as a steam source of the refrigerator, the steam heats the absorbent solution in the generator of the refrigerator 39, water in the solution is continuously vaporized, and as the water is continuously vaporized, the concentration of the absorbent solution in the generator is continuously increased and enters the absorber; the water vapor enters a condenser, is cooled by cooling water in the condenser and then is condensed to form high-pressure low-temperature liquid water; when water in the condenser enters the evaporator through the throttle valve, the water rapidly expands and vaporizes, and absorbs a large amount of heat of refrigerant water in the evaporator in the vaporization process, so that the purpose of cooling and refrigeration is achieved, refrigeration can be provided for the equipment to be refrigerated 60, the equipment to be refrigerated 60 can be used for cooling a well, a factory building, an office building and a dormitory, namely, cooling the well, and refrigerating areas such as the factory building, the office building and the dormitory, and therefore the ventilation air treatment system 100 achieves cold, heat and electricity triple supply.
In some examples, the boiler 31 employs an all natural water circulation pattern, and the make-up water may come from a plant-wide demineralized water line. The high-temperature flue gas passes through a high-temperature evaporator, a high-temperature superheater, a low-temperature superheater, an economizer, a deaerator evaporator and a condensate heater, and the high-temperature flue gas is finally discharged out of the boiler after being reduced to about 90 ℃. In addition, the boiler 31 is provided with an oxygen removal evaporator, and oxygen removal steam does not need to be additionally provided.
Experimental analysis verifies that the hourly pure methane flow in ventilation air and gas is 108Nm3Permin, 6 oxidation units 20 run at full capacity, producing 14.4 × 104 Nm/hour3The high-temperature flue gas is matched with 1 60t/h high-temperature high-pressure boiler and a 1 × 15MW condensing turbine generator set (air cooling), the gas destruction rate reaches more than 99%, the total net power supply amount per year can reach 92394MWh, and the maximum 10t/h heat supply capacity can be provided by heat supply through intermediate-stage steam extraction of the steam turbine 32 in winter.
According to the utility model discloses ventilation air methane processing system 100, the whole oxidation of colliery ventilation air methane and gas to be used for electricity generation and heating with the heat energy of its production, make the environmental protection of colliery enterprise reach the standard of zero release, realized colliery ventilation air methane and gas full utilization, zero release, solved the problem that ventilation air methane and gas directly evacuation in-process greenhouse gas discharge and coal dust particle discharge, overcome the nitrogen oxide secondary pollution that traditional low concentration gas internal-combustion engine power generation technique caused.
In addition, the combined cooling heating and power device 30 replaces the existing small coal-fired boiler of the air shaft of the coal mine, realizes the free switching of refrigeration, heating, power generation and combined cooling, heating and power, effectively realizes the combined cooling, heating and power, and obtains great economic benefits.
Aiming at automatic control systems in various environments, the ventilation air methane processing system 100 ensures autonomous switching, intelligent control and safe production on the basis of safety; the method conforms to the coal mine gas safety control policy of promoting extraction and extracting security advocated by the state, and can generate obvious safety benefit, environmental benefit and economic benefit of comprehensive utilization of resources.
Other configurations and operations of the ventilation air methane processing system 100 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features through another feature not directly in contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A ventilation air methane processing system, comprising:
a blending device having a ventilation air inlet and a gas inlet for blending ventilation air and gas to form a mixture;
the oxidizing device is communicated with the gas mixing device and is used for oxidizing the mixture and generating high-temperature flue gas, and the oxidizing device is provided with a first flue gas outlet;
and the first flue gas outlet is communicated with the combined cooling heating and power device, and the combined cooling heating and power device can use the high-temperature flue gas for refrigeration, heat supply or power supply.
2. The ventilation air methane treatment system according to claim 1, wherein the oxidation device further has a second flue gas outlet, the first flue gas outlet is switchably on and off with the second flue gas outlet, and the second flue gas outlet is in communication with the outside atmosphere.
3. The ventilation air methane processing system of claim 1, wherein the oxidation device comprises a combustion chamber, a first heat exchanger and a second heat exchanger, each of the first heat exchanger and the second heat exchanger being in communication with the combustion chamber,
wherein the first heat exchanger has a first gas inlet and a first gas discharge port, the second heat exchanger has a second gas inlet and a second gas discharge port, at least one of the first gas inlet and the second gas inlet is communicated with the blending device, and at least one of the first gas discharge port and the second gas discharge port is communicated with the outside.
4. The ventilation air methane treatment system of claim 3, wherein the first heat exchanger and the second heat exchanger are in series, and the combustion chamber is located between the first heat exchanger and the second heat exchanger.
5. The ventilation air methane treatment system of claim 3 or 4, wherein the blending device is in selective communication with one of the first gas inlet and the second gas inlet,
when the blending device is communicated with the first gas inlet, the first gas discharge port is blocked, and the first gas inlet is communicated with the second gas discharge port;
when the blending device is communicated with the second gas inlet, the second gas discharge opening is blocked, and the second gas inlet is communicated with the first gas discharge opening.
6. The ventilation air methane processing system according to claim 5, further comprising a control valve disposed between the blending device and the oxidation device for controlling the on/off of the air flow,
controlling the blending device to be disconnected from the second gas inlet when the blending device is communicated with the first gas inlet; controlling the blending device to be disconnected from the first gas inlet when the blending device is communicated with the second gas inlet.
7. The ventilation air methane processing system of claim 6, wherein the control valve is a two-position, three-way valve; or the control valve comprises a first control part and a second control part, the first control part is arranged between the blending device and the first gas inlet to control the on-off between the blending device and the first gas inlet, and the second control part is arranged between the blending device and the second gas inlet to control the on-off between the blending device and the second gas inlet.
8. The ventilation air methane processing system of claim 1, wherein the combined heat and power generation device comprises:
the boiler is communicated with the first flue gas outlet and generates high-temperature and high-pressure steam;
a steam turbine in communication with the boiler for using steam for power generation;
a first heat exchanger in communication with the boiler, the first heat exchanger adapted to convert steam to hot water for heating.
9. The ventilation air methane treatment system of claim 8, wherein the steam turbine is in communication with the first heat exchanger, and saturated steam within the steam turbine is extracted to the first heat exchanger.
10. The ventilation air methane processing system of claim 8, wherein the combined heat and power plant further comprises a second heat exchanger in communication with the boiler, the second heat exchanger adapted to convert steam to hot air.
11. The ventilation air methane processing system according to claim 8, wherein the combined cooling, heating and power device further comprises a refrigerator, wherein the refrigerator is communicated with the boiler and is driven by steam to refrigerate.
12. The ventilation air methane processing system according to claim 1, wherein the blending device comprises a blending deflector and a blending static mixer, and the ventilation air methane and the gas methane form the mixture after being secondarily blended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194867.6U CN211475965U (en) | 2019-12-09 | 2019-12-09 | Ventilation air methane processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194867.6U CN211475965U (en) | 2019-12-09 | 2019-12-09 | Ventilation air methane processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211475965U true CN211475965U (en) | 2020-09-11 |
Family
ID=72362957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922194867.6U Active CN211475965U (en) | 2019-12-09 | 2019-12-09 | Ventilation air methane processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211475965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604597A (en) * | 2020-12-09 | 2021-04-06 | 河南理工大学 | High-low concentration gas mixing device and using method thereof |
-
2019
- 2019-12-09 CN CN201922194867.6U patent/CN211475965U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604597A (en) * | 2020-12-09 | 2021-04-06 | 河南理工大学 | High-low concentration gas mixing device and using method thereof |
| CN112604597B (en) * | 2020-12-09 | 2023-04-07 | 河南理工大学 | High-low concentration gas mixing device and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104482772B (en) | Vertical sintering waste heat drives cooling heating and power generation system and method thereof | |
| CN105258384B (en) | A kind of thermoelectric cold polygenerations systeme of integrated thermochemical process | |
| CN105605827B (en) | The complementary type distributed energy resource system of thermochemical process is integrated using exhaust gases of internal combustion engines | |
| CN202216405U (en) | Smoke waste heat all recovering device for gas boiler | |
| CN102733872A (en) | Ventilation air methane oxidation power generation system | |
| CN107905897A (en) | Gas turbine cycle flue gas waste heat recovery and inlet gas cooling association system and method | |
| CN108729965A (en) | The electricity generation system and CO of the part oxygen-enriched combusting of Combined with Calcium base chain2Capture method | |
| CN106215682A (en) | A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2method for catching | |
| CN106764414A (en) | A kind of LNG gasification station cold, heat and power triple supply system | |
| CN202470536U (en) | Double-high flue gas hot-water after-burning type lithium bromide absorption type cold and hot water unit | |
| CN211475965U (en) | Ventilation air methane processing system | |
| CN110905662A (en) | Low NOX gas-steam combined cycle system and method adopting wet flue gas recirculation | |
| CN113782767A (en) | Reforming hydrogen-oxygen production fuel cell ship waste heat comprehensive utilization system | |
| CN210568552U (en) | Boiler energy-saving and flue gas whitening system | |
| CN103638784A (en) | Externally heating type wet flue gas dehumidifying method and system | |
| CN201760225U (en) | Site treating and using system of natural gas and gas fume | |
| CN202145101U (en) | Organic rankine cycle waste heat power generating and dedusting special device for flue gas of metallurgical furnace | |
| CN115899716A (en) | Thermal power plant flue gas-sludge-solar energy comprehensive gradient utilization system and method | |
| CN104047730A (en) | Gas turbine air inlet cooling system by using cascaded lithium bromide refrigerators | |
| CN112097287B (en) | Boiler energy-saving and flue gas whitening system, process and application | |
| CN204612241U (en) | Biomass direct-fired cold/hot water machine of lithium bromide group | |
| CN209213922U (en) | A kind of synergy emission reduction device for the power station IGCC combustion engine | |
| CN203939581U (en) | Adopt the Inlet Air Cooling System of Gas Turbine of superposition type lithium bromide refrigerator | |
| CN203620486U (en) | External heating type wet flue gas dehumidification system | |
| CN206746317U (en) | Utilize the gas distributed energy system that liquefied ammonia is reducing agent denitration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |