CN217329801U - Garbage methane furnace-entering mixed combustion system - Google Patents
Garbage methane furnace-entering mixed combustion system Download PDFInfo
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- CN217329801U CN217329801U CN202220543321.6U CN202220543321U CN217329801U CN 217329801 U CN217329801 U CN 217329801U CN 202220543321 U CN202220543321 U CN 202220543321U CN 217329801 U CN217329801 U CN 217329801U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The utility model discloses a rubbish marsh gas goes into stove and mixes burning system contains: the methane tank is used for storing methane; the biogas burner is arranged on the side wall of the garbage incinerator and used for burning biogas; the air supply module is connected with the biogas burner and used for providing air required by operation for the biogas burner; the on-off module is connected with the methane cabinet and the methane burner and is used for controlling the on-off of the methane during conveying; the first blowing module is connected with the on-off module; and the adjusting and detecting module is connected with the on-off module and the biogas burner. The utility model solves the problems existing in other methane treatment methods such as: the flue gas can generate sulfur-containing gas, so that certain light pollution is caused; or the safety is poor, so that the risk of explosion exists; or the problems of complex process, large one-time investment, high operating cost and the like.
Description
Technical Field
The utility model relates to a marsh gas burns technical field, in particular to rubbish marsh gas goes into stove and mixes burning system.
Background
China has a large population, and with the continuous development and growth of urban scale, the amount of the generated domestic garbage is continuously increased, and about 3.6 hundred million tons of domestic garbage are generated in China in 2021 years.
At present, the main treatment mode of municipal solid waste in China is incineration, and the municipal solid waste is used as fuel for incineration power generation, so that heat generated by incineration can be converted into electric energy, and reduction and resource utilization of the municipal solid waste are realized.
A certain amount of biogas can be generated in a percolate treatment station of a domestic waste incineration power plant, and the biogas treatment method mainly comprises the following steps: torch burning, discharging to a garbage pit, then burning in a furnace, biogas power generation, biogas burning in the furnace and the like. The torch combustion method has better safety, but the flue gas can generate sulfur dioxide after the torch combustion, and certain light pollution can be caused at night; the method of discharging the waste into a garbage pit and then burning the waste into a furnace has poor safety and has the risk of explosion; although the method for generating electricity by using methane is safe and environment-friendly, the process is complex, the one-time investment is large, and the operating cost is high; the methane is burnt in the furnace, namely the collected methane is sent to a methane burner and then sprayed to the incinerator for burning.
SUMMERY OF THE UTILITY MODEL
According to the embodiment of the utility model, a rubbish marsh gas is gone into stove and is mixed system of burning is provided, contains:
the methane cabinet is used for storing methane;
the biogas burner is arranged on the side wall of the garbage incinerator and used for burning biogas;
the air supply module is connected with the biogas burner and used for providing air required by operation for the biogas burner;
the on-off module is connected with the methane cabinet and the methane burner and is used for controlling the on-off of the methane during conveying;
the first blowing module is connected with the on-off module;
the adjusting and detecting module is connected with the on-off module and the biogas burner and is used for detecting the flow and the pressure during biogas conveying and adjusting the conveying amount of biogas;
and the second purging module is connected with the adjusting and detecting module and an external nitrogen source.
Further, the air supply module includes: and the combustion-supporting fan is connected with the biogas burner and used for providing air required by operation for the biogas burner.
Further, the on-off module comprises:
one end of the first automatic switch valve is connected with the methane tank;
and one end of the second automatic switch valve is connected with the other end of the first automatic switch valve and the first blowing module, and the other end of the second automatic switch valve is connected with the adjusting and detecting module.
Further, the first purge module includes: and the first automatic sweeping switch valve is connected with one end of the second automatic switch valve.
Further, the adjustment detection module includes: the automatic control system comprises an automatic regulating valve, a flowmeter, a pressure switch, a pressure transmitter, a pressure gauge and a flame arrester;
one end of the automatic regulating valve is connected with the on-off module and is used for regulating the conveying quantity of the biogas;
one end of the flow meter is connected with the other end of the automatic regulating valve, and the other end of the flow meter is connected with one end of the flame arrester through a pipeline and used for metering the conveying amount of the methane;
the pressure switch, the pressure transmitter and the pressure gauge are sequentially arranged on a pipeline between the flowmeter and the flame arrester;
the other end of the flame arrester is connected with the methane burner.
Further, the second purge module comprises:
the second sweeps automatic switch valve, and the second sweeps the pipeline between one end of automatic switch valve and flowmeter and the spark arrester and links to each other, and the second sweeps the other end of automatic switch valve and links to each other with the nitrogen gas source.
According to the utility model discloses rubbish marsh gas goes into stove and mixes burning system possesses following beneficial effect:
(1) the invention solves the problems existing in other methane treatment methods such as: the flue gas can generate sulfur-containing gas, so that certain light pollution is caused; or the safety is poor, so that the risk of explosion exists; or the problems of complex process, large one-time investment, high operating cost and the like.
(2) The invention has the advantages of simple equipment process flow and small one-time investment.
(3) The invention has the advantages of higher safety, stable system operation, small maintenance amount and low operation cost.
(4) The flue gas generated by biogas combustion is treated by the existing flue gas purification system of the whole plant, and the aim of qualified emission of the flue gas generated by biogas combustion is fulfilled without adding additional flue gas treatment equipment.
(5) The invention can improve the heat load of the boiler to a certain extent.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.
Drawings
Fig. 1 is a structural diagram of a mixed combustion system of garbage methane in a furnace according to the embodiment of the utility model.
Detailed Description
The present invention will be further described with reference to the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.
First, a garbage biogas entering furnace co-combustion system according to an embodiment of the present invention will be described with reference to fig. 1, which is used for burning biogas and has a wide application range.
As shown in fig. 1, the mixed combustion system for feeding garbage biogas into a furnace of the embodiment of the present invention comprises a biogas tank 1, a biogas burner 12, an air supply module, an on-off module, a first purging module, an adjustment detection module and a second purging module.
Specifically, as shown in fig. 1, in this embodiment, a biogas cabinet 1 is used for storing biogas, a biogas burner 12 is disposed on a side wall of the garbage incinerator and is used for burning biogas, an air supply module is connected to the biogas burner 12 and is used for providing air required by the biogas burner 12 during operation, an on-off module is connected to the biogas cabinet 1 and the biogas burner 12 and is used for controlling on-off of biogas during transportation so that biogas in the biogas cabinet 1 can be transported into the biogas burner 12 for burning as required, a purging module is connected to the on-off module and is used for purging and emptying when the system is started up and purging and emptying nitrogen when the system is shut down, so as to ensure safe operation of the system during burning of biogas, an adjustment detection module is connected to the on-off module and the biogas burner 12 and is used for detecting flow rate, and the like in a transportation pipeline during transportation of biogas, And the second purging module is used for purging the methane conveying pipeline, so that the safe operation of the system is ensured.
Further, as shown in fig. 1, in the present embodiment, the air supply module includes: and the combustion-supporting fan 13, the combustion-supporting fan 13 is connected with the biogas burner 12 and is used for providing air required by operation for the biogas burner 12.
Further, as shown in fig. 1, in this embodiment, the on-off module includes: a first automatic opening/closing valve 3 and a second automatic opening/closing valve 4. One end of the first automatic switch valve 3 is connected with the methane cabinet 1, one end of the second automatic switch valve 4 is connected with the other end of the first automatic switch valve 3, the first sweeping automatic switch valve 2 in the first sweeping module is connected, the other end of the second automatic switch valve 4 is connected with the adjusting and detecting module, methane conveying control can be well carried out through the first automatic switch valve 3 and the second automatic switch valve 4, on-off of methane conveying is achieved, and when the system is started, the first automatic switch valve 3 and the second automatic switch valve 4 are automatically in an open state.
Further, as shown in fig. 1, in the present embodiment, the first purge module includes: the first automatic blowing and sweeping switch valve 2 is connected with one end of the second automatic blowing and sweeping switch valve 4, and is used for blowing and emptying nitrogen when the system is started and when the system is shut down, blowing and emptying possibly existing methane and air mixture, and ensuring the safe operation of the system when the methane is combusted.
Further, as shown in fig. 1, in this embodiment, the adjustment detection module includes: automatic regulating valve 5, flowmeter 7, pressure switch 6, pressure transmitter 9, pressure gauge 10 and flame arrester 11. One end of the automatic regulating valve 5 is connected with the on-off module, and the automatic regulating valve 5 is used for regulating the conveying amount of the biogas; one end of a flowmeter 7 is connected with the other end of the automatic regulating valve 5, the other end of the flowmeter 7 is connected with one end of a flame arrester 11 through a pipeline, and the flowmeter 7 is used for metering the conveying amount of the biogas; the pressure switch 6, the pressure transmitter 9 and the pressure gauge 10 are sequentially arranged on a pipeline between the flowmeter 7 and the flame arrester 11, the pressure switch 6 is used for detecting the pressure in the biogas pipeline, when the biogas pressure is smaller than the set biogas pressure, the biogas combustion system is closed, the pressure transmitter 9 is used for monitoring the pressure in the biogas pipeline in real time, and the pressure gauge 10 is used for monitoring the pressure in the biogas pipeline in real time; the other end of the flame arrester 11 is connected with the biogas burner 12, and the flame arrester 11 prevents the occurrence of backfire accidents.
Further, as shown in fig. 1, in the present embodiment, the second purge module includes: the second sweeps automatic switch valve 8, and the second sweeps the pipeline between automatic switch valve 8 and flowmeter 7 and the spark arrester 11 and links to each other, and the second sweeps the other end of automatic switch valve and links to each other with the nitrogen gas source, and the second sweeps automatic switch valve 8 and is used for sweeping the marsh gas pipeline when the system stops, guarantees entire system's safe operation.
When the biogas digester is used, biogas generated by a leachate treatment station is filtered, dewatered and stored in a biogas tank 1, a second purging automatic switch valve 8 is in a closed state, a combustion fan 13 is started, a first automatic switch valve 3 and a first purging automatic switch valve 2 are opened to purge and vent the biogas in a biogas pipeline, the biogas in the biogas pipeline is detected by a handheld biogas detector, when the biogas is detected to be completely filled in the biogas pipeline, the first purging automatic switch valve 2 is closed, a second automatic switch valve 4 and an automatic regulating valve 5 are sequentially opened, and the biogas in the biogas tank 1 is conveyed to a biogas combustor 12 to enter a garbage incinerator for combustion. Sulfur-containing gas generated by biogas combustion is treated by the existing flue gas purification system of the waste incineration power plant, and because the flue gas generated by biogas combustion is smaller than the flue gas of the whole plant, the flue gas generated by biogas combustion and required to be treated can not influence the flue gas purification system of the whole plant
Above, with reference to fig. 1, the garbage methane co-combustion system entering the furnace according to the embodiment of the present invention is described, which has the following beneficial effects:
(1) the invention solves the problems existing in other methane treatment methods such as: the flue gas can generate sulfur-containing gas, so that certain light pollution is caused; or the safety is poor, so that the risk of explosion exists; or the problems of complex process, large one-time investment, high operating cost and the like.
(2) The invention has the advantages of simple equipment process flow and small one-time investment.
(3) The invention has the advantages of higher safety, stable system operation, small maintenance amount and low operation cost.
(4) The flue gas generated by biogas combustion is treated by the existing flue gas purification system of the whole plant, and the aim of qualified emission of the flue gas generated by biogas combustion is fulfilled without adding additional flue gas treatment equipment.
(5) The invention can improve the heat load of the boiler to a certain extent.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (6)
1. A mixed combustion system for garbage methane entering a furnace is characterized by comprising:
the methane tank is used for storing methane;
the biogas burner is arranged on the side wall of the external garbage incinerator and used for burning biogas;
the air supply module is connected with the biogas burner and is used for providing air required by operation for the biogas burner;
the on-off module is connected with the methane cabinet and the methane burner and is used for controlling the on-off of methane during conveying;
the first blowing module is connected with the on-off module;
the adjusting and detecting module is connected with the on-off module and the biogas burner and is used for detecting the flow and the pressure during biogas conveying and adjusting the conveying amount of biogas;
and the second purging module is connected with the adjusting and detecting module and an external nitrogen source.
2. The system for co-firing waste biogas into a furnace of claim 1, wherein the air supply module comprises: and the combustion-supporting fan is connected with the biogas burner and used for providing air required by operation for the biogas burner.
3. The system for co-combustion of garbage methane in a furnace as claimed in claim 1, wherein the on-off module comprises:
one end of the first automatic switch valve is connected with the methane cabinet;
and one end of the second automatic switch valve is connected with the other end of the first automatic switch valve and the first blowing module, and the other end of the second automatic switch valve is connected with the adjusting and detecting module.
4. The waste biogas stoker co-combustion system as recited in claim 3, wherein the first purging module comprises: and the first automatic purging switch valve is connected with one end of the second automatic switch valve.
5. The system for co-combustion of garbage methane in a furnace as claimed in claim 1, wherein the adjusting and detecting module comprises: the automatic control system comprises an automatic regulating valve, a flowmeter, a pressure switch, a pressure transmitter, a pressure gauge and a flame arrester;
one end of the automatic regulating valve is connected with the on-off module and is used for regulating the conveying quantity of the biogas;
one end of the flow meter is connected with the other end of the automatic regulating valve, and the other end of the flow meter is connected with one end of the flame arrester through a pipeline and used for metering the conveying amount of the biogas;
the pressure switch, the pressure transmitter and the pressure gauge are sequentially arranged on a pipeline between the flowmeter and the flame arrester;
the other end of the flame arrester is connected with the biogas burner.
6. The waste biogas stoker co-combustion system as recited in claim 5, wherein the second purging module comprises:
and the second purging automatic switch valve, one end of the second purging automatic switch valve is connected with the flow meter and a pipeline between the flame arresters, and the other end of the second purging automatic switch valve is connected with the nitrogen source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220543321.6U CN217329801U (en) | 2022-03-14 | 2022-03-14 | Garbage methane furnace-entering mixed combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220543321.6U CN217329801U (en) | 2022-03-14 | 2022-03-14 | Garbage methane furnace-entering mixed combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217329801U true CN217329801U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220543321.6U Active CN217329801U (en) | 2022-03-14 | 2022-03-14 | Garbage methane furnace-entering mixed combustion system |
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| Country | Link |
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| CN (1) | CN217329801U (en) |
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- 2022-03-14 CN CN202220543321.6U patent/CN217329801U/en active Active
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