CN100494765C - Biomass marsh gas preprocessing system - Google Patents
Biomass marsh gas preprocessing system Download PDFInfo
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- CN100494765C CN100494765C CNB2006100403188A CN200610040318A CN100494765C CN 100494765 C CN100494765 C CN 100494765C CN B2006100403188 A CNB2006100403188 A CN B2006100403188A CN 200610040318 A CN200610040318 A CN 200610040318A CN 100494765 C CN100494765 C CN 100494765C
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims description 52
- 239000002028 Biomass Substances 0.000 title claims description 18
- 238000007781 pre-processing Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 238000003860 storage Methods 0.000 claims description 11
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 230000014509 gene expression Effects 0.000 description 19
- 239000007789 gas Substances 0.000 description 12
- 238000013461 design Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The invention relates to a biological miasma pretreatment system for supplying miasma fuel to the generator or boiler. It is characterized in that: it comprises a desulfurizer (1), a water-cold miasma dewater device (2), a Root fan (3), a wind-cold heat emitter (4), a filter (5), an electromagnetic cut-off valve (6), and a channel fire arrester (7). The invention can solve the problems as corrosion and short service life.
Description
Technical field
The present invention relates to a kind of biogas treatment device, especially a kind ofly provide the biogas treatment device of qualified biogas fuel, specifically a kind of biomass marsh gas preprocessing system for the thermal power plant.
Background technique
As everyone knows, the main component of biomass marsh gas is a methane, and as a kind of greenhouse gases that causes by force, it is very big pollution to environment to sky discharging.Methane also is the energy of cleaning simultaneously, has been widely used in generating, boiler, gas supply conduit etc. abroad.Along with China's industrial and agricultural development and quickening of urbanization process, Industrial Wastewater Treatment, domestic waste landfill, farming and animal husbandry compost etc. have brought abundant raw all for the generation of biomass marsh gas.At present, domestic biomass marsh gas utilizes engineering in the ascendant, and a provinces and cities all has correlation engineering to start surplus Beijing, Shanghai, Guangdong, Zhejiang, Jiangsu etc. ten.
But the biomass marsh gas complicated component also contains a large amount of harmful gases and inert gas except methane, and these impurity can influence and utilize equipment as the working life of generator set, boiler etc., reduce utilization ratio.Therefore before biogas is utilized, must at first remove these impurity by pretreatment.
According to the knowledge of the applicant, still do not have a kind of biomass marsh gas pre-treater of maturation available at present, the utilization of it and biogas requires to greatly differ from each other.
Summary of the invention
The objective of the invention is at present marsh gas preprocessing system and make the not high present situation of biogas utilization rate for want of, design a kind of biomass marsh gas preprocessing system that generator or boiler provide qualified biogas fuel that can be.
Technological scheme of the present invention is:
A kind of biomass marsh gas preprocessing system is characterized in that roots blower device that water-cooled biogas dewatering unit that it mainly is made up of water cooling unit 201, two-stage shell and tube heat exchanger 202, tornado evaporator 203 desulfurizer of being made up of digester 101 1,2, is made up of some roots blowers 301 and self-powering type minute-pressure pressure governor 3, an air-cooled radiator 4, one cross filtrating equipment 5, an electromagnetic shut-off valve 6, the flame arrester for pipe 7 that logos and utensils 502 and coalescent filter 503 form by roughing efficiency air filter 501, pipeline and form; Wherein the input end of desulfurizer 1 is that the input end of digester 101 links to each other with the biogas conveyance conduit, the output terminal of desulfurizer 1 is that the output terminal of digester 101 is that the input end of two-stage shell and tube heat exchanger 202 links to each other by the pipeline and the input of water-cooled biogas dewatering unit 2, two-stage shell and tube heat exchanger 202 and water chiller 201, swelling water tank 204, circulating water pump 205 partners through carrying the snorkel of biogas to carry out hydronic circulating cooler in the two-stage shell and tube heat exchanger 202, the output terminal of two-stage shell and tube heat exchanger 202 links to each other with the input end of tornado evaporator 203, the output terminal of tornado evaporator 203 links to each other as the input end of the roughing efficiency air filter 501 in the output terminal of water-cooled biogas dewatering unit 2 and the filtrating equipment 5, the input end that the output of roughing efficiency air filter 501 connects roots blower device 3 is the input end of roots blower 301, the other bypass line that is connected between the inlet end of roots blower 301 and outlet side, self-powering type minute-pressure pressure governor is installed on the described bypass line, the output of roots blower 301 is as the give a dinner for a visitor from afar input end of cold heat sink 4 of the output of whole roots blower device 3, the piping filter 502 in the filter device 5 is taken in the output of air-cooled radiator 4, piping filter 502 connects coalescent filter 503, coalescent filter 503 links to each other with input end with device of air (thermoelectric generator or boiler) 8 by air duct, on the gas pipeline 9 that connects between coalescent filter 503 and the thermoelectric generator 8 electromagnetic shut-off valve 6 is installed successively, flame arrester for pipe 7.
Described desulfurizer 1 is made up of the digester 101 of two serial connections.
Roots blower device 3 is made up of two roots blowers 301 that connect that are parallel to each other at least, it is their the same pneumatic tube of air inlet termination, their outlet side also connects same pneumatic tube, the other respectively bypass line that is connected to separately all is equipped with self-powering type minute-pressure pressure governor between the inlet end of every roots blower 301 and the outlet side on described bypass line.
At the other torch assembly 10 that is connected on the gas pipeline 9 between electromagnetic shut-off valve 6 and the flame arrester for pipe 7, flame trap 11 also is installed on starting to exchange fire the gas pipeline of torch device 10 on the side.
The all other by-pass line that is connected between the input of digester 101, water-cooled biogas dewatering unit 2, roughing efficiency air filter 501, coalescent filter 503 and air-cooled radiator 4, output terminal.
Condensation water collection treatment device 12 mainly is made up of low pressure water seal 121, high pressure water seal 122, condensed water water storage tank 123, draining pump 124, wherein low pressure water seal 121 links to each other with digester 101, two-stage shell and tube heat exchanger 202, tornado evaporator 203, roughing efficiency air filter 501 by condensate pipe, high pressure water seal 122 links to each other with air-cooled radiator 4, coalescent filter 503 by condensate pipe, low pressure water seal 121, high pressure water seal 122 all link to each other with condensed water water storage tank 123, and condensed water water storage tank 123 is connected with draining pump 124.
Beneficial effect of the present invention:
The invention solves influences in the biogas industrial applications seriously to equipment corrosion for a long time, and the difficult problem that the equipment operation life-span is short is for applying of biogas lays the foundation.
Marsh gas preprocessing system energy of the present invention: what (1) guaranteed equipment uses the gas demand; (2) can satisfy the required rated pressure of equipment; (3) can guarantee to export fuel gas temperature; (4) water vapour in the biogas can be separated; (5) can remove contained particulate matters in the biogas; (6) remove hydrogen sulfide content in the biogas; (7) can guarantee that the water that separates in the pre-treater can in time drain.
Description of drawings
Fig. 1 is a composition structural representation of the present invention.
Among the figure: 901 expression condensate lines, 902 expression methane pipelines, 903 expression dish valves, 904 expression self-powering type minute-pressure pressure governors, 905 expression gate valves, pressure gauge in the 906 expression field instruments, the thermometer in the 907 expression field instruments, 908 expression ball valves, 910 expression apolegamy parts, pressure measuring set in the online detector of 911 expressions, the temperature measuring set in the online detector of 912 expressions, the humidity measuring apparatus in the online detector of 913 expressions, methane detector in the online detector of 914 expressions, oxygen measurement set in the online detector of 915 expressions, the flowmeter in the online detector of 916 expressions, 917 expressions connect biogas and are responsible for, 918 expression pneumostomes, 919 expression water of condensation efflux, 920 swelling water tanks, 921 expression circulating water pump.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1.
A kind of biomass marsh gas preprocessing system, roots blower device that water-cooled biogas dewatering unit that it mainly is made up of water cooling unit 201, two-stage shell and tube heat exchanger 202, tornado evaporator 203 desulfurizer of being made up of the digester 101 of two serial connections 1,2, is made up of two roots blowers 301 and two self-powering type minute-pressure pressure governors 3, an air-cooled radiator 4, one are crossed filtrating equipment 5, an electromagnetic shut-off valve 6, the flame arrester for pipe 7 that logos and utensils 502 and coalescent filter 503 form by roughing efficiency air filter 501, pipeline and are formed; Wherein the input end of desulfurizer 1 is that the input end of digester 101 links to each other with the biogas conveyance conduit, the output terminal of desulfurizer 1 is that the output terminal of digester 101 is that the input end of two-stage shell and tube heat exchanger 202 links to each other by the pipeline and the input of water-cooled biogas dewatering unit 2, two-stage shell and tube heat exchanger 202 and water chiller 201, swelling water tank 204, circulating water pump 205 partners through carrying the snorkel of biogas to carry out hydronic circulating cooler in the two-stage shell and tube heat exchanger 202, the output terminal of two-stage shell and tube heat exchanger 202 links to each other with the input end of tornado evaporator 203, the output terminal of tornado evaporator 203 links to each other as the input end of the roughing efficiency air filter 501 in the output terminal of water-cooled biogas dewatering unit 2 and the filtrating equipment 5, the input end that the output of roughing efficiency air filter 501 connects roots blower device 3 is the input end of roots blower 301, the other bypass line that is connected between the inlet end of roots blower 301 and outlet side, self-powering type minute-pressure pressure governor is installed on the described bypass line, the output of roots blower 301 is as the give a dinner for a visitor from afar input end of cold heat sink 4 of the output of whole roots blower device 3, the piping filter 502 in the filter device 5 is taken in the output of air-cooled radiator 4, piping filter 502 connects coalescent filter 503, coalescent filter 503 links to each other by the input end of air duct with thermoelectric generator or boiler 8, on the gas pipeline 9 that connects between coalescent filter 503 and the thermoelectric generator 8, electromagnetic shut-off valve 6 is installed successively, flame arrester for pipe 7, at the other torch assembly 10 that is connected on the gas pipeline 9 between electromagnetic shut-off valve 6 and the flame arrester for pipe 7, flame trap 11 also is installed on starting to exchange fire the gas pipeline of torch device 10 on the side.
The all other by-pass line that is connected between the input of digester 101, water-cooled biogas dewatering unit 2, roughing efficiency air filter 501, coalescent filter 503 and air-cooled radiator 4, output terminal.
(model can be water-cooled biogas dewatering unit 2 in the present embodiment: LS-1500), shell and tube heat exchanger 202 (model can be KG-T), tornado evaporator 203 (model can be NN-C2) form by water cooling unit 201.By biogas is cooled, make the saturated steam in the biogas condense into condensed water, thereby reach the purpose of dehydration, heat exchange quantity is set by the recirculated cooling water temperature and is regulated.
Roots blower device 3 is made up of two roots blowers 301 (model can be LSWR-125) and two self-powering type minute-pressure pressure governors (model can be TY506).Wherein roots blower 301 is the power plant that extract and carry biogas, adopts VFC; Self-powering type minute-pressure pressure governor is used for when roots blower 301 export pipeline blast are excessive; automatically open the bypass line of joint access pipeline and export pipeline; a part of air quantity is refluxed; reduce the outlet pressure of roots blower 301, to guarantee that the shutdown situation does not take place roots blower 301 under the normal operating conditions such as ferryman's shape excessively of system start-up, load down.Roots blower 301 also plays the purpose that makes biogas heat up, reduce humidity.
Air-cooled radiator 4 (model can be F-F2000) surpasses the air inlet requirement of gas equipment (as motor) for avoiding biogas through temperature after roots blower 301 superchargings, adopts the air-cooled radiator processing of lowering the temperature, and cooling fan motor is according to the temperature signal VFC.
Filtrating equipment 5 is made up of roughing efficiency air filter 501 (CN-M), piping filter 502 (model can be PVB2) and coalescent filter 503 (model can be GOM-100).Roughing efficiency air filter 501 is arranged on before the roots blower 301, is used to protect roots blower 301; Piping filter 502 is arranged on before the coalescent filter 503, filter comparatively thick particulate matter, coalescent filter 503 is a fine filter, make air communication later the particulate matter particle diameter reach the requirement of gas equipment (as motor), coalescent filter 503 also has except that functional oil in addition.
The electromagnetic shut-off valve 6 (model can be Q5CN-10) of present embodiment receives emergency signal and in time cuts off fuel gas supply, and flame arrester for pipe 7 (model can be FA200) is used to prevent by contingent dangerous hidden danger after gas equipment (as motor) the suction tude generation tempering.
In addition, in order to guarantee the proper functioning of whole system, the present invention all adopts field instrument to monitor to the normal signal in the pipeline (pressure, temperature), and various instrumentations (seeing for details shown in the accompanying drawing) therefore have been installed on air delivering pipeline.To control signal, metering signal, alarm signal (pressure, temperature, humidity, flow, methane content, oxygen content, combustion gas leakage, flame are reported to the police), employing has the industrial online instrument of sensor, transmitter, secondary meter and signal output and measures, shows and transmit.
During concrete enforcement, also can adopt with PLC is the lower-position unit hierarchy of control of core, and controlled volume and monitoring variable are carried out real-time observing and controlling, adopts process control machine to realize man-machine interface, and signal is followed MODBUS agreement and power station principal controller communication by the RS485 interface.For ease of operation, automatic control/manually control switch mode can be set.Secondary meter can be located on the control cabinet.For the random that possesses independent control function (water cooling unit, draining pump etc.), control cabinet can be set separately, with the decentralized control link, improve the reliability of system, the electrical control of whole system can manufacture and design as required.
Torch assembly 10 in the present embodiment is apolegamy equipment, and the condensed water that discharges in the pipeline is pooled to after water seal in the condensed water storage tank, and water level control draining pump is set in the condensed water storage tank, effluxes condensed water automatically.
Each component involved in the present invention all have the ripe product can be for choosing, except that can be from choose in market, but self design also, the present invention has provided they correct connections, reaches a kind of connecting means of perfect condition.
Claims (7)
1, a kind of biomass marsh gas preprocessing system is characterized in that it is mainly by a desulfurizer (1) of being made up of digester (101), one by water cooling unit (201), the water-cooled biogas dewatering unit (2) that two-stage shell and tube heat exchanger (202) and tornado evaporator (203) are formed, the one roots blower device of forming by some roots blowers (301) and self-powering type minute-pressure pressure governor (3), one air-cooled radiator (4), one by roughing efficiency air filter (501), pipeline is crossed the filtrating equipment (5) of logos and utensils (502) and coalescent filter (503) composition, one electromagnetic shut-off valve (6) and a flame arrester for pipe (7) are formed; Wherein the input end of desulfurizer (1) is that the input end of digester (101) links to each other with the biogas conveyance conduit, the output terminal of desulfurizer (1) is that the output terminal of digester (101) is that the input end of two-stage shell and tube heat exchanger (202) links to each other by the pipeline and the input of water-cooled biogas dewatering unit (2), two-stage shell and tube heat exchanger (202) and water chiller (201), swelling water tank (204) and circulating water pump (205) partner through carrying the snorkel of biogas to carry out hydronic circulating cooler in the two-stage shell and tube heat exchanger (202), the output terminal of two-stage shell and tube heat exchanger (202) links to each other with the input end of tornado evaporator (203), the output terminal of tornado evaporator (203) links to each other as the input end of the roughing efficiency air filter (501) in the output terminal of water-cooled biogas dewatering unit (2) and the filtrating equipment (5), the input end that the output of roughing efficiency air filter (501) connects roots blower device (3) is the input end of roots blower (301), the other bypass line that is connected between the input end of roots blower (301) and output terminal, self-powering type minute-pressure pressure governor is installed on the described bypass line, the output of roots blower (301) is as the give a dinner for a visitor from afar input end of cold heat sink (4) of the output of whole roots blower device (3), the piping filter (502) in the filter device (5) is taken in the output of air-cooled radiator (4), piping filter (502) connects coalescent filter (503), coalescent filter (503) links to each other with input end with device of air (8) by air duct, described electromagnetic shut-off valve (6) and flame arrester for pipe (7) is installed successively on the gas pipeline (9) between the thermoelectric generator (8) of device of air connecting coalescent filter (503) and conduct.
2, biomass marsh gas preprocessing system according to claim 1 is characterized in that described desulfurizer (1) is made up of the digester (101) of two serial connections.
3, biomass marsh gas preprocessing system according to claim 1, it is characterized in that roots blower device (3) is made up of two roots blowers (301) that connect that are parallel to each other at least, the other respectively bypass line that is connected to separately all is equipped with self-powering type minute-pressure pressure governor between the input end of every roots blower (301) and the output terminal on described bypass line.
4, biomass marsh gas preprocessing system according to claim 1, it is characterized in that going up the other torch assembly (10) that is connected to, another flame trap (11) is installed on starting to exchange fire the gas pipeline of torch device (10) on the side at the gas pipeline (9) that is positioned between electromagnetic shut-off valve (6) and the flame arrester for pipe (7).
5, biomass marsh gas preprocessing system according to claim 1 is characterized in that all other by-pass line that is connected between the input, output terminal at digester (101), water-cooled biogas dewatering unit (2), roughing efficiency air filter (501), coalescent filter (503) and air-cooled radiator (4).
6, biomass marsh gas preprocessing system according to claim 1, it is characterized in that digester (101), two-stage shell and tube heat exchanger (202), tornado evaporator (203), roughing efficiency air filter (501), air-cooled radiator (4) and coalescent filter (503) all are connected with corresponding condensate pipe, the output terminal of condensate pipe links to each other with condensation water collection treatment device (12).
7, biomass marsh gas preprocessing system according to claim 6, it is characterized in that condensation water collection treatment device (12) is mainly by low pressure water seal (121), high pressure water seal (122), condensed water water storage tank (123) and draining pump (124) are formed, wherein low pressure water seal (121) is by condensate pipe and digester (101), two-stage shell and tube heat exchanger (202), tornado evaporator (203) and roughing efficiency air filter (501) link to each other, high pressure water seal (122) links to each other with air-cooled radiator (4) and coalescent filter (503) by condensate pipe, low pressure water seal (121) all links to each other with condensed water water storage tank (123) with high pressure water seal (122), and condensed water water storage tank (123) is connected with draining pump (124).
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| CNB2006100403188A CN100494765C (en) | 2006-05-15 | 2006-05-15 | Biomass marsh gas preprocessing system |
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| CNB2006100403188A CN100494765C (en) | 2006-05-15 | 2006-05-15 | Biomass marsh gas preprocessing system |
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| CN100494765C true CN100494765C (en) | 2009-06-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102562278A (en) * | 2010-12-24 | 2012-07-11 | 宇星科技发展(深圳)有限公司 | Generating system and generating method by utilizing landfill gas |
| CN103232871A (en) * | 2013-05-08 | 2013-08-07 | 山西汾西机电有限公司 | Methane purification system and methane purification technology thereof |
| CN105567561B (en) * | 2016-01-15 | 2018-05-22 | 曹秀保 | A kind of large and medium-sized methane-generating pit of automatic hot fermentation of underground type two-stage anaerobic |
| CN108676700A (en) * | 2018-07-12 | 2018-10-19 | 甘肃驰奈生物能源***有限公司 | A kind of form anaerobic fermentation methane dewatering |
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Non-Patent Citations (4)
| Title |
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| 生物质沼气发电技术. 陈泽智.环境保护. 2000 |
| 生物质沼气发电技术. 陈泽智.环境保护. 2000 * |
| 生物质能发电技术及应用. 陆璐等.能源技术，第26（增刊）卷. 2005 |
| 生物质能发电技术及应用. 陆璐等.能源技术，第26（增刊）卷. 2005 * |
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Assignee: Nanjing Tianmo Technology Co., Ltd. Assignor: Nanjing University Contract record no.: 2010320000915 Denomination of invention: Biomass marsh gas preprocessing system Granted publication date: 20090603 License type: Exclusive License Open date: 20061122 Record date: 20100714 |
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