CN214654715U - Improved generation marsh gas desulphurization unit - Google Patents
Improved generation marsh gas desulphurization unit Download PDFInfo
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- CN214654715U CN214654715U CN202120925544.4U CN202120925544U CN214654715U CN 214654715 U CN214654715 U CN 214654715U CN 202120925544 U CN202120925544 U CN 202120925544U CN 214654715 U CN214654715 U CN 214654715U
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Abstract
The utility model discloses an improved methane desulfurizing device, which comprises a front methane cabinet, a rear methane cabinet, a desulfurizing tower device, a gas-liquid separator, a gas adjusting exhaust pipe and a combustion torch which are connected by pipelines, wherein methane enters the front methane cabinet through a front intake pipe which is communicated with the rear methane cabinet through a first communicating pipe; the rear methane tank is provided with a second air outlet pipe communicated with the front air outlet pipe; the rear air inlet pipe is communicated with the rear air outlet pipe through a second communicating pipe. The utility model discloses be provided with leading, rearmounted marsh gas cabinet, under normal conditions, two marsh gas cabinets move simultaneously, and when an arbitrary marsh gas cabinet overhauld, another marsh gas cabinet of accessible keeps whole desulphurization unit to continue the operation, and therefore, just can guarantee that whole marsh gas desulphurization unit is stable, long-term, effective operation, has improved marsh gas desulphurization unit's operating efficiency, can not appear because of leading rearmounted marsh gas cabinet overhauls, and the condition that will stop the fortune.
Description
The technical field is as follows:
the utility model relates to the technical field of biogas desulfurization treatment devices, in particular to an improved biogas desulfurization device.
Background art:
the application of the biogas as a novel energy source is more and more extensive, the biogas is strictly regulated in the national environmental protection standard, and when the biogas energy source is utilized, H in the biogas gas2The S content should not exceed 20mg/m 3. In industrial or civil gas, it is necessary to remove H as much as possible2And S. The marsh gas produces water from the anaerobic fermentation device, and especially carries a large amount of H during medium-temperature or high-temperature fermentation2And S. Because a large amount of water vapor exists in the biogas, the water and H in the biogas2And the corrosion and the blockage of metal pipelines, valves and flow meters are accelerated under the combined action of S. In addition, H2SO formed after combustion of S2And the sulfurous acid is combined with water vapor in combustion products, so that the metal surface of equipment is corroded, and the pollution to the atmospheric environment is caused, and the health of a human body is influenced. Therefore, before using the biogas, the H must be removed2S。
The commonly used biogas desulfurization methods in the industry at present comprise: dry desulfurization, wet desulfurization, biological desulfurization and other main methods. The biogas desulfurization method adopted by the applicant at present is mainly biological desulfurization. This kind of desulfurization system mainly includes: the biogas digester comprises a biogas cabinet, a desulfurizing tower device, a gas-water separator, a gas adjusting exhaust pipe and a combustion torch, wherein all the components are communicated through pipelines to form a set of biogas desulfurization system. The working principle is as follows, the marsh gas generated in the sewage treatment at the front end of the paper making is input into a marsh gas cabinet through a pipeline, is temporarily stored in the marsh gas cabinet, and the pressure of the marsh gas is stably input through the marsh gas cabinet. Then, the biogas in the biogas tank enters a desulfurizing tower device to be collected for removing H2And S processing. Removal of H2And (3) after moisture of the marsh gas of the S is removed by a gas-water separator, regulating the pressure output by the marsh gas through a gas regulating calandria, and then feeding the marsh gas into an electric heating plant as fuel to carry out incineration power generation. Meanwhile, the burning torch is used for preventing the danger caused by the overlarge methane pressure or directly burning the torch to enable the methane to be in danger when the desulfurization system is in troubleAnd ignition is carried out, so that dangerous accidents are avoided.
The existing desulfurization system used by the applicant comprises a biogas tank, so that the whole desulfurization system needs to be shut down when the biogas tank needs to be overhauled, or biogas is directly burned by a combustion torch, so that not only is the resource waste caused, but also the environment is polluted. Although the applicant also adopts a desulfurization system with two methane tanks, the two methane tanks are connected in series, and the problem cannot be solved. Therefore, in order to ensure the stable and long-term effective operation of the biogas desulfurization system, improve the equipment operation rate of the biogas desulfurization system and avoid the shutdown of the biogas desulfurization system due to the overhaul of a biogas cabinet, the inventor provides the following technical scheme.
The utility model has the following contents:
the utility model aims to solve the technical problem of overcoming the defects of the prior art and providing an improved methane desulfurizer.
In order to solve the technical problem, the utility model discloses a following technical scheme: an improved biogas desulfurization device, comprising: the device comprises a front methane cabinet, a rear methane cabinet, a desulfurizing tower device, a gas-liquid separator, a gas regulating exhaust pipe and a combustion torch which are connected through pipelines, wherein methane enters the front methane cabinet through a front air inlet pipe and enters the desulfurizing device through a front air outlet pipe for desulfurization, and the desulfurized methane enters the rear methane cabinet through the rear air inlet pipe after passing through the gas-liquid separator and is output after entering the gas regulating exhaust pipe through the rear air outlet pipe; valves are arranged on the pipelines to control the on-off, and the front air inlet pipe is communicated with the rear methane tank through a first communicating pipe; the rear methane tank is provided with a second air outlet pipe communicated with the front air outlet pipe; the rear air inlet pipe is communicated with the rear air outlet pipe through a second communicating pipe.
Further, in the above technical solution, the combustion torch includes: a first combustion torch communicated with the front methane tank and a second combustion torch communicated with the rear methane tank.
Further, in the above technical solution, the air regulating exhaust pipe includes a plurality of air regulating pipes connected in parallel, wherein each air regulating pipe is provided with an additional fan.
Further, in the above technical scheme, the output end of the gas regulating exhaust pipe is communicated with the front methane tank and the rear methane tank through a return pipe.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses be provided with leading, rearmounted marsh gas cabinet, under normal conditions, two marsh gas cabinets move simultaneously, and marsh gas gets into leading marsh gas cabinet earlier, and the reentrant desulfurizing tower device carries out desulfurization treatment, and marsh gas after the desulfurization reentrants rearmounted marsh gas cabinet sends into power plant's boiler through the gas transfer calandria at last and burns the electricity generation. When the rear methane cabinet needs to be overhauled, the rear methane cabinet is isolated from the whole desulfurization device by closing a valve on a pipeline, the methane enters the front methane cabinet and then enters the desulfurization tower device for desulfurization treatment, and the desulfurized methane is directly sent to a boiler of a power plant for incineration power generation through a gas-liquid separator and a gas-regulating exhaust pipe. When the preposed biogas cabinet needs to be overhauled, the preposed biogas cabinet is isolated from the whole desulfurization device by closing a valve on a pipeline, biogas directly enters the postposed biogas cabinet through a first communication pipe, enters the desulfurization tower device through a second outlet pipe for desulfurization treatment, and the desulfurized biogas is directly sent into a boiler of a power plant for incineration power generation through a gas-liquid separator after passing through a gas-liquid separator. Therefore, the whole methane desulfurization device can be ensured to stably, effectively operate for a long time, the operation efficiency of the methane desulfurization device is improved, and the condition that the methane desulfurization device needs to be shut down due to the maintenance of the front-mounted and rear-mounted methane cabinets is avoided.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
The utility model relates to an improved methane desulfurizer, which is an improvement of the prior methane desulfurizer. As shown in fig. 1, the improved biogas desulfurization device comprises: the device comprises a front methane cabinet 1, a rear methane cabinet 2, a desulfurizing tower device 3, a gas-liquid separator 4, a gas regulating calandria 5 and a combustion torch 6. These devices are connected by pipes and a valve is provided in each pipe to control the opening and closing of the respective pipe.
The front methane tank 1 is provided with a front air inlet pipe 11, and the front air inlet pipe 11 can comprise a plurality of pipes to be respectively communicated with a plurality of methane sources. For example, the utility model discloses in be provided with two leading intake pipes 11. The front air inlet pipe 11 is communicated with the rear biogas tank 2 through a first communicating pipe 7. Thus, the front methane tank 1 and the rear methane tank 2 are connected in parallel through the first connecting pipe 7. However, in normal conditions, the valve in the first communication pipe 7 is closed.
The rear methane tank 2 is provided with a second air outlet pipe 23 communicated with the front air outlet pipe 12; the second outlet pipe 23 can be directly connected with the preposed outlet pipe 12, or an auxiliary pipeline 24 can be added and then connected with the preposed outlet pipe 12. The rear air inlet pipe 21 is communicated with the rear air outlet pipe 22 through a second communicating pipe 8.
In order to facilitate the explanation of the pipeline connection relationship of each component of the present invention, the present invention is further explained below with reference to the biogas treatment process.
1. Normal working state
In this operating state, the valve on the first connecting pipe 7 is closed, and the valve on the second connecting pipe 8 is also closed. Biogas generated by an external biogas source enters the preposed biogas cabinet 1 through the preposed air inlet pipe 11, then enters the desulfurization device 3 from the preposed biogas cabinet 1 through the preposed air outlet pipe 12 for desulfurization, enters the postposition biogas cabinet 2 through the postposition air inlet pipe 21 after passing through the gas-liquid separator 4, enters the air-adjusting discharge pipe 5 through the postposition air outlet pipe 22, is output, and is sent to the boiler of the power plant for incineration power generation.
Under the normal working state, the front methane cabinet 1 and the rear methane cabinet 2 are both in an operating state, the front methane cabinet 1 and the rear methane cabinet 2 are used for adjusting and stabilizing the pressure of methane, in order to realize that the methane can normally operate under the condition of pressure difference, the air pressure of the front methane cabinet 1 is 3.3KPa, and the air pressure of the rear methane cabinet is adjusted to 3 KPa.
2. The rear methane tank is in a maintenance state
When the rear methane tank 2 needs to be overhauled, the rear methane tank 2 is isolated from the whole desulphurization device by closing the valves on the corresponding pipelines. Wherein the valve on the first communicating pipe 7 is closed, the valve on the rear air inlet pipe 21 is closed, and the valve on the second communicating pipe 8 is opened. Biogas generated by an external biogas source enters the preposed biogas cabinet 1 through the preposed air inlet pipe 11, then enters the desulfurization device 3 from the preposed biogas cabinet 1 through the preposed air outlet pipe 12 for desulfurization, and the desulfurized biogas does not enter the postposition biogas cabinet 2 after passing through the gas-liquid separator 4, but directly enters the gas regulating exhaust pipe 5 through the second communicating pipe 8 and then is output, and is sent to a boiler of a power plant for incineration power generation.
In this working state, the rear biogas tank 2 is isolated from the entire biogas desulfurization device and is in a state of being repaired, but the entire biogas desulfurization device still keeps normal operation.
3. The prepositive methane cabinet is in a maintenance state
When the front methane cabinet 1 needs to be overhauled, the front methane cabinet 2 is isolated from the whole desulphurization device by closing the valves on the corresponding pipelines. Wherein, the valve between the prepositive air inlet pipe 11 and the prepositive biogas cabinet 1 is closed, and the valve on the first communicating pipe 7 is opened, so that the biogas does not enter the prepositive biogas cabinet 1 any more, but directly enters the postpositive biogas cabinet 2 through the first communicating pipe 7. Meanwhile, the valve on the rear air inlet pipe 21 is closed, the valve on the second communicating pipe 8 is opened, and the valve on the second air outlet pipe 23 is opened. Biogas generated by an external biogas source directly enters the rear biogas cabinet 2 through the front air inlet pipe 11 and the first communicating pipe 7, then enters the desulfurization device 3 along the front air outlet pipe 12 through the second air outlet pipe 23 for desulfurization, and the desulfurized biogas does not enter the rear biogas cabinet 2 any more after passing through the gas-liquid separator 4, but directly enters the gas regulating exhaust pipe 5 through the second communicating pipe 8 and then is output, and is sent to the boiler of the power plant for incineration power generation.
Under the working state, the front methane cabinet 1 is isolated from the whole methane desulfurization device and is in a state of being repaired, at the moment, the rear methane cabinet 2 is used as the front methane cabinet, and the whole desulfurization device still keeps normal operation.
The utility model discloses in, the gas regulating calandria 5 include a plurality of parallelly connected gas regulating pipe way 51, wherein all be provided with in every gas regulating pipe way 51 and increase fan 52 and corresponding valve. In the actual use process, the on-off quantity of the gas regulating pipeline 51 is adjusted according to the air inflow of the biogas source.
The output end of the gas regulating calandria 5 is communicated with the front methane cabinet 1 and the rear methane cabinet 2 through a return pipe 53. The effect of back flow pipe 53 is, when the steam power plant does not need marsh gas as fuel, and desulfurated marsh gas can flow back to leading marsh gas cabinet 1 and rearmounted marsh gas cabinet 2 in through back flow pipe 53, the utility model discloses in, in order to practice thrift the pipeline, back flow pipe 53 lug connection is to leading intake pipe 11 and first connecting pipe 7 on.
In addition, under some special conditions, when the biogas is not ready to be desulfurized and needs to directly enter the boiler of the power plant for incineration power generation, the preposed air inlet pipe 11 and the first communication pipe 7 can be directly communicated with the second air regulating and discharging pipe 50 through a pipeline and then enter the boiler of the power plant for incineration power generation after passing through the second air regulating and discharging pipe 50. The air regulating calandria 5 and the second air regulating calandria 50 have different air inlet ends, but the air outlet ends are connected in parallel.
The utility model provides a burning torch 6 is too big danger appears in order to prevent among the marsh gas cabinet pressure equally, perhaps when desulfurization system goes wrong, the accessible burns the torch and directly ignites marsh gas, avoids appearing dangerous accident. The utility model discloses well burning torch 6 includes: a first combustion torch 61 communicated with the front-mounted biogas tank 1 and a second combustion torch 62 communicated with the rear-mounted biogas tank 2. The first combustion torch 61 is directly connected through the pre-exit pipe 12. The second combustion torch 62 is communicated with the rear biogas tank 2 through a first communicating pipe 7.
Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.
Claims (4)
1. An improved generation marsh gas desulphurization unit which characterized in that: the device includes: the device comprises a front-mounted biogas cabinet (1), a rear-mounted biogas cabinet (2), a desulfurizing tower device (3), a gas-liquid separator (4), a gas regulating exhaust pipe (5) and a combustion torch (6) which are connected through pipelines, wherein biogas enters the front-mounted biogas cabinet (1) through a front-mounted air inlet pipe (11), enters the desulfurizing tower device (3) through a front-mounted air outlet pipe (12) and is desulfurized, and the desulfurized biogas passes through the gas-liquid separator (4), then enters the rear-mounted biogas cabinet (2) through a rear-mounted air inlet pipe (21), enters the gas regulating exhaust pipe (5) through a rear-mounted air outlet pipe (22) and is output; valves are arranged on the pipelines to control the on-off of the pipelines;
the front air inlet pipe (11) is communicated with the rear biogas cabinet (2) through a first communicating pipe (7);
the rear methane tank (2) is provided with a second air outlet pipe (23) communicated with the front air outlet pipe (12);
the rear air inlet pipe (21) is communicated with the rear air outlet pipe (22) through a second communicating pipe (8).
2. An improved biogas desulfurization unit as defined in claim 1, wherein: the combustion torch (6) comprises: a first combustion torch (61) communicated with the front methane tank (1) and a second combustion torch (62) communicated with the rear methane tank (2).
3. An improved biogas desulfurization unit as defined in claim 1, wherein: the air regulating calandria (5) comprises a plurality of air regulating pipelines (51) connected in parallel, wherein each air regulating pipeline (51) is provided with an additional fan (52).
4. An improved biogas desulfurization unit as defined in claim 3, characterized in that: the output end of the gas regulating calandria (5) is communicated with the front methane cabinet (1) and the rear methane cabinet (2) through a return pipe (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120925544.4U CN214654715U (en) | 2021-04-30 | 2021-04-30 | Improved generation marsh gas desulphurization unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120925544.4U CN214654715U (en) | 2021-04-30 | 2021-04-30 | Improved generation marsh gas desulphurization unit |
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| Publication Number | Publication Date |
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| CN214654715U true CN214654715U (en) | 2021-11-09 |
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| CN202120925544.4U Active CN214654715U (en) | 2021-04-30 | 2021-04-30 | Improved generation marsh gas desulphurization unit |
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2021
- 2021-04-30 CN CN202120925544.4U patent/CN214654715U/en active Active
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