CN100374792C - Complete set for producing hot water by utilizing landfill gas - Google Patents

Complete set for producing hot water by utilizing landfill gas Download PDF

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Publication number
CN100374792C
CN100374792C CNB2006100403205A CN200610040320A CN100374792C CN 100374792 C CN100374792 C CN 100374792C CN B2006100403205 A CNB2006100403205 A CN B2006100403205A CN 200610040320 A CN200610040320 A CN 200610040320A CN 100374792 C CN100374792 C CN 100374792C
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China
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water
type heat
pipe
gas
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CNB2006100403205A
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Chinese (zh)
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CN1844784A (en
Inventor
陈泽智
李建平
龚惠娟
廖行
唐秋萍
刘鹏
许雪松
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Nanjing University
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Nanjing University
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Abstract

The present invention discloses a new complete set device for producing hot water by utilizing landfill gas, which aims to the problem of low utilization rate of the existing landfill gas. The present invention comprises a steam boiler (1), a plate type heat exchanging set (2), an auxiliary machine of the boiler, and a thermal-insulated water storing jar (4) which are connected by water pipes and gas pipes into a complete set of heat energy producing device. The auxiliary machine of the boiler is connected with the steam boiler (1) and the plate type heat exchanging set (2). The present invention has the advantages of simple structure, less investment, high utilization rate, and provides a new application channel for the comprehensive utilization of the landfill gas.

Description

Utilize rubbish landfill gas to produce the complexes of hot water
Technical field
The present invention relates to a kind of rubbish landfill gas treating apparatus, especially a kind of complexes that utilize rubbish landfill gas to produce available hot water, specifically a kind of complexes that utilize rubbish landfill gas to produce hot water.
Background technology
Rubbish landfill gas is that the labile organic compound in the city life garbage landfill decomposes the imflammable gas that produces under anaerobic state, also be the very strong gas of a kind of contaminative, breath malodor not only, serious harm ambient atmosphere environment, and the methane that is discharged still causes greenhouse gases by force, account for the 6%-18% of occurring in nature total release according to statistics by the methane of refuse landfill discharging, become a kind of greenhouse gases of the needs control discharging of generally acknowledging in the world.From utilization of resources angle, rubbish landfill gas is again a kind of good living beings regenerative resource simultaneously, owing to contain a large amount of methane, landfill gas has higher low heat value, being equivalent to half of natural gas, is a kind of comparatively ideal gaseous fuel after purified treatment.Therefore, the biomass energy in the development and use rubbish landfill gas, developing renewable new forms of energy, reducing environmental pollution is the needs of urban sustainable development.
At present, the domestic existing mode of utilizing to rubbish landfill gas generally all is to be used for generating, invest greatly owing to the landfill gas power generation technology exists in implementation process, can only be difficult to the large tracts of land popularization in the shortcoming that the bulky refuse landfill yard is used, so that the landfill gas of many refuse landfills and fail to be used to greatest extent, contaminated environment causes the waste of the energy on the other hand on the one hand.Because the gas output of rubbish landfill gas and unstable has its intrinsic defective with it as a fixing using energy source, it also is imperative therefore seeking a kind of new method of utilizing simultaneously.
Summary of the invention
The objective of the invention is at the not high problem of existing rubbish landfill gas utilization rate, design a kind of new rubbish landfill gas that utilizes and produce the complexes of hot water.
Technical scheme of the present invention is:
A kind of complexes that utilize rubbish landfill gas to produce hot water, it is characterized in that it comprises a steam boiler 1, one plate-type heat-exchange unit 2, one connects the boiler accessory machinery 3 of steam boiler 1 and plate-type heat-exchange unit 2, one insulation water tank 4, described plate-type heat-exchange unit 2 is mainly by plate type heat exchanger 201, thermometer bulb 202, water circulating pump 203, temperature sensor 204, temperature-sensing valve 205 is formed, described boiler accessory machinery 3 is mainly by softened water tank 301, gas-distributing cylinder 302, water softening device is formed, the combustion gas inlet end of steam boiler 1 links to each other with the rubbish landfill gas Gas Pipe, the cold water water inlet end of steam boiler 1 links to each other with softened water tank 301 in the boiler accessory machinery 3, the steam outlet side of steam boiler 1 links to each other with the gas-distributing cylinder 302 that belongs to one of boiler accessory machinery 3 by first steam pipe 7, gas-distributing cylinder 302 links to each other by the primary side of the plate type heat exchanger 201 in second steam pipe and the plate-type heat-exchange unit 2, the condensation-water drain of the primary side of plate type heat exchanger 201 links to each other with softened water tank 301 by condensate pipe 8, water after the secondary side of plate type heat exchanger 201 will heat by water pipe is delivered in the thermometer bulb 202, thermometer bulb 202 links to each other with insulation water tank 4 by hot water outlet pipe 9, temperature-sensing valve 205 by temperature sensor 204 controls that link to each other with thermometer bulb 202 is installed on the hot water outlet pipe 9 who is connected thermometer bulb 202 and insulation water tank 4, also be connected with circulating water pipe 206 between thermometer bulb 202 and plate type heat exchanger 201, water circulating pump 203 is installed on the described circulating water pipe 206.
Described insulation water tank 4 is connected with adjutage 10.
Between described insulation water tank 4 and circulating water pipe 206, be provided with return pipe 11, and the end that return pipe 11 links to each other with circulating water pipe 206 is between the secondary side of water circulating pump 203 and plate type heat exchanger 201.
Beneficial effect of the present invention:
1, the present invention is by converting rubbish landfill gas to heat energy, for the comprehensive utilization of rubbish landfill gas provides a new application channel, is a kind of brand-new mode of utilizing.And employed complexes small investment, remarkable benefit.
2, the hot water that makes of complexes of the present invention is of many uses, both can deliver to the user by pipeline, also can be transported to the user by the insulation vehicle.
3, utilization rate and conversion ratio height, environmental pollution is little, helps sustainable development.
Description of drawings
Fig. 1 is that complete set of equipments of the present invention is formed structural representation.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1.
A kind of complexes that utilize rubbish landfill gas to produce hot water, it comprises steam boiler 1, plate-type heat-exchange unit 2, the boiler accessory machinery 3 that connects steam boiler 1 and plate-type heat-exchange unit 2, insulation water tank 4, the quantity that wherein is incubated water tank 4 can be set according to the heat production water yield and temperature, and (quantity that present embodiment adopts is two, as shown in the figure), can adopt the self-control mode to make, the bottom of insulation water tank 4 is connected with hot water adjutage 10, can hot water be delivered to user or conveying equipment (as insulated lorry etc.) by this hot water adjutage 10, plate-type heat-exchange unit 2 is mainly by plate type heat exchanger 201 (model can be DC410), thermometer bulb 202, water circulating pump 203 (model can be CC-15), temperature sensor 204 (model can be GY200), temperature-sensing valve 205 (model can be YS-2) is formed, boiler accessory machinery 3 is mainly by softened water tank 301, gas-distributing cylinder 302, water softening device (model can be ZTL-03) is formed, the combustion gas inlet end of steam boiler 1 links to each other with the rubbish landfill gas Gas Pipe, the cold water water inlet end of steam boiler 1 links to each other with softened water tank 301 in the boiler accessory machinery 3, the steam outlet side of steam boiler 1 links to each other with the gas-distributing cylinder 302 that belongs to one of boiler accessory machinery 3 by first steam pipe 7, gas-distributing cylinder 302 links to each other by the primary side of the plate type heat exchanger 201 in second steam pipe and the plate-type heat-exchange unit 2, the condensation-water drain of the primary side of plate type heat exchanger 201 links to each other with softened water tank 301 by condensate pipe 8, water after the secondary side of plate type heat exchanger 201 will heat by water pipe is delivered in the thermometer bulb 202, thermometer bulb 202 links to each other with insulation water tank 4 by hot water outlet pipe 9, temperature-sensing valve 205 by temperature sensor 204 controls that link to each other with thermometer bulb 202 is installed on the hot water outlet pipe 9 who is connected thermometer bulb 202 and insulation water tank 4, also be connected with circulating water pipe 206 between thermometer bulb 202 and plate type heat exchanger 201, water circulating pump 203 is installed on the described circulating water pipe 206.
In addition, for the sake of security, also a return pipe 11 can be set between described insulation water tank 4 and circulating water pipe 206, and the end that return pipe 11 links to each other with circulating water pipe 206 is between the secondary side of water circulating pump 203 and plate type heat exchanger 201.
The course of work of each part of the present invention is:
(1) steam boiler 1
Can adopt gas fired-boiler, by the combustion refuse landfill gas calory burning is converted into saturated vapor (up to 13 kilograms of pressure) output, the landfill gas waste gas after burning is effluxed by smoke exhaust pipe and chimney 101.The saturated vapor of boiler output is delivered to gas-distributing cylinder 302, and the steam output pipe road is set on gas-distributing cylinder 302, links to each other with plate-type heat-exchange unit 2, and high-temperature-hot-water is produced in partition heating water inlet.
(2) the plate-type heat-exchange unit 2
Be made up of plate type heat exchanger 201, thermometer bulb 202 and water circulating pump 203, temperature sensor 204, temperature-sensing valve 205 etc., they are controlled by the control corresponding cabinet.The saturated vapor of the primary side of plate type heat exchanger 201 is flowed through behind the heat exchanger, and the normal temperature water inlet that secondary is surveyed is heated to be high-temperature-hot-water output, and saturated vapor is cooled to saturation water, is back to softened water tank by condensate pipe, forms the water circulation system of boiler side.Be provided with temperature-sensing valve in the export pipeline of heat exchange unit, when water temperature does not reach design temperature in the thermometer bulb, this valve closing, circulation heating in water circulating pump carries out, after water temperature reaches design temperature in thermometer bulb, temperature-sensing valve is opened, and high-temperature-hot-water is delivered in the insulation water tank, and the leaving water temperature of high-temperature water can be set.
(3) insulation water tank 4
Can form by the heat preserved water can of several steel plate welding, store the hot water of producing, and externally be transported to the outward transport of insulation tank car.
(4) boiler accessory machinery 3
Comprise water softening device, softened water tank, gas-distributing cylinder etc., finish the function such as processing, supply, circulation of boiler feed water.
Operation principle of the present invention is:
After rubbish landfill gas entered boiler combustion, burning capacity was exported with steam, by the plate-type heat-exchange unit secondary side water was heated to design temperature (can up to 95 ℃) by normal temperature, was transported to and waited in the heat preserved water can to transport outward, and the steam condensate (SC) of primary side carries out recycling.
Each parts involved in the present invention or be manufactured parts (as gas-distributing cylinder, softened water tank etc.) relatively commonly used, or for the ripe product of Gong choosing is arranged, except that can be from choose in market, but self design also, the present invention has provided they correct connections, reaches a kind of method of attachment of perfect condition.

Claims (3)

1. complexes that utilize rubbish landfill gas to produce hot water, it is characterized in that it comprises a steam boiler (1), one plate-type heat-exchange unit (2), one connects the boiler accessory machinery (3) of steam boiler (1) and plate-type heat-exchange unit (2), one insulation water tank (4), described plate-type heat-exchange unit (2) is mainly by plate type heat exchanger (201), thermometer bulb (202), water circulating pump (203), temperature sensor (204), temperature-sensing valve (205) is formed, described boiler accessory machinery (3) is mainly by softened water tank (301), gas-distributing cylinder (302), water softening device is formed, the combustion gas inlet end of steam boiler (1) links to each other with the rubbish landfill gas Gas Pipe, the cold water water inlet end of steam boiler (1) links to each other with softened water tank (301) in the boiler accessory machinery (3), the steam outlet side of steam boiler (1) links to each other with the gas-distributing cylinder (302) that belongs to one of boiler accessory machinery (3) by first steam pipe (7), gas-distributing cylinder (302) links to each other by the primary side of the plate type heat exchanger (201) in second steam pipe and the plate-type heat-exchange unit (2), the condensation-water drain of the primary side of plate type heat exchanger (201) links to each other with softened water tank (301) by condensate pipe (8), water after the secondary side of plate type heat exchanger (201) will heat by water pipe is delivered in the thermometer bulb (202), thermometer bulb (202) links to each other with insulation water tank (4) by hot water outlet pipe (9), temperature-sensing valve (205) by temperature sensor (204) control that links to each other with thermometer bulb (202) is installed on the hot water outlet pipe (9) who is connected thermometer bulb (202) and insulation water tank (4), also be connected with circulating water pipe (206) between thermometer bulb (202) and plate type heat exchanger (201), water circulating pump (203) is installed on the described circulating water pipe (206).
2. the complexes that utilize rubbish landfill gas to produce hot water according to claim 1 is characterized in that described insulation water tank (4) is connected with adjutage (10).
3. the complexes that utilize rubbish landfill gas to produce hot water according to claim 1, it is characterized in that between described insulation water tank (4) and circulating water pipe (206), being provided with return pipe (11), and the end that return pipe (11) links to each other with circulating water pipe (206) is positioned between the secondary side of water circulating pump (203) and plate type heat exchanger (201).
CNB2006100403205A 2006-05-15 2006-05-15 Complete set for producing hot water by utilizing landfill gas Expired - Fee Related CN100374792C (en)

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Application Number Priority Date Filing Date Title
CNB2006100403205A CN100374792C (en) 2006-05-15 2006-05-15 Complete set for producing hot water by utilizing landfill gas

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252333A (en) * 2011-05-05 2011-11-23 福建省丰泉环保控股有限公司 Method and treatment system for reducing nitrogen oxides by using incineration of refuse landfill gas

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221191A (en) * 2011-04-01 2011-10-19 山东万盛环保科技发展有限公司 Secondary steam generator
CN103884101A (en) * 2012-12-24 2014-06-25 苗苏宁 Plate-type gas combustion condensing water boiler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029413A1 (en) * 1997-12-08 1999-06-17 Thermatrix, Inc. Flameless thermal oxidization of landfill gas
CN2574793Y (en) * 2002-09-26 2003-09-24 武绍之 Automatic control device of roller mill emergency stop
CN1554491A (en) * 2003-12-23 2004-12-15 南京大学 Comprehensive utilization system for garbage burying gas resource

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029413A1 (en) * 1997-12-08 1999-06-17 Thermatrix, Inc. Flameless thermal oxidization of landfill gas
CN2574793Y (en) * 2002-09-26 2003-09-24 武绍之 Automatic control device of roller mill emergency stop
CN1554491A (en) * 2003-12-23 2004-12-15 南京大学 Comprehensive utilization system for garbage burying gas resource

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252333A (en) * 2011-05-05 2011-11-23 福建省丰泉环保控股有限公司 Method and treatment system for reducing nitrogen oxides by using incineration of refuse landfill gas
CN102252333B (en) * 2011-05-05 2012-12-26 福建省丰泉环保控股有限公司 Method and treatment system for reducing nitrogen oxides by using incineration of refuse landfill gas

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