CN105066219A - Total flue gas waste heat recovery system and method for gas boiler or direct-fired machine - Google Patents
Total flue gas waste heat recovery system and method for gas boiler or direct-fired machine Download PDFInfo
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- CN105066219A CN105066219A CN201510469706.7A CN201510469706A CN105066219A CN 105066219 A CN105066219 A CN 105066219A CN 201510469706 A CN201510469706 A CN 201510469706A CN 105066219 A CN105066219 A CN 105066219A
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Abstract
The invention discloses a total flue gas waste heat recovery system and method for a gas boiler or a direct-fired machine. The total flue gas waste heat recovery system comprises the gas boiler or the direct-fired machine, one or more heat exchangers, an induced draft fan, one or more condensers and a heat pump. A high-temperature flue gas channel of the gas boiler or the direct-fired machine is connected with the heat exchangers, the induced draft fan and the condensers in sequence. The flue gas output end of each condenser is connected with the outdoor place. Hot water connection of the flue gas waste heat recovery system includes a parallel connection manner and/or a series connection manner. The parallel connection manner is characterized in that a hot water return pipe is divided into two ways to be connected with the heat exchangers and the heat pump respectively, and the output of the heat exchangers and the output of the heat pump are connected with a heating system. The series connection manner is characterized in that the hot water return pipe is connected with the heat pump, outlet water of the heat pump is connected with the heat exchangers, and the output of the heat exchangers is connected with the heating system. By means of the total flue gas waste heat recovery system, the flue gas waste heat of the gas boiler or the direct-fired machine is totally recycled and used for heating, sanitary water heating, replenished water heating and other kinds of technological application, and the aims of saving energy, reducing consumption and reducing emission are achieved.
Description
Technical field
The invention belongs to energy-saving environmental protection device technical field, be specifically related to a kind of gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery system and method.
Background technology
At present, gas fired-boiler or Central Air-Conditioner have quite a few heat energy to waste with fume emission.And the exhaust gas temperature of the flue gas waste heat recovery technology that waste heat recovery field is released and condensing boiler is also more than 40 DEG C, a large amount of waste heats is still had to be difficult to recycle.Therefore, current so-called residual activity recovery technology, just by part recovery of latent heat, the inreal total heat recovery realizing natural gas heat energy yet.
Summary of the invention
Technical problem to be solved by this invention is: solve above-mentioned prior art Problems existing, and a kind of gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery system and method are provided, gas fired-boiler or Central Air-Conditioner fume afterheat are all recycled, supply water for heating, final exhaust gas temperature reduces to normal temperature, the multipurpose reaching energy-conservation, lower consumption, reduce discharging.
The technical solution used in the present invention is:
A kind of gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery system, comprise gas fired-boiler or Central Air-Conditioner, one or more heat exchanger, air-introduced machine, one or more condenser, heat pump, gas fired-boiler or Central Air-Conditioner high temp. flue connect one or more heat exchanger flue gas input, the flue gas output of one or more heat exchanger connects the flue gas input of one or more condenser by air-introduced machine, the flue gas output of one or more condenser leads to outdoor by pipeline, the circulating water pipe of one or more condenser connects the evaporimeter of heat pump; The hot-water heating system of flue gas waste heat recovery connects and is divided into parallel connection and/or series connection two kinds of modes, parallel way is: hot water return pipe divides two-way to connect one or more heat exchanger and heat pump respectively, and one or more heat exchanger is connected heating system with hot water backwater's efferent duct of heat pump; Series system is: hot water return pipe connects heat pump, and the hot water delivery pipe of heat pump is connected to one or more heat exchanger, and hot water backwater's efferent duct of one or more heat exchanger connects heating system.
A kind of gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery method, hot water return pipe divides two-way, one tunnel connects one or more heat exchanger, another road connects heat pump, gas fired-boiler or Central Air-Conditioner are discharged high-temperature flue gas and are entered one or more heat exchanger, carry out heat exchange with hot water backwater, flue-gas temperature reduces, and hot water backwater's temperature raises; The flue gas of being discharged by one or more heat exchanger enters one or more condenser under air-introduced machine water conservancy diversion, and carry out heat exchange with the recirculated water to heat pump, flue-gas temperature is reduced to normal temperature further, and discharges; Heat exchange and the circulating water flow backheat pump after heating up in one or more condenser, heat pump reclaims recirculated water heat, and hot water backwater's temperature that heat pump exports raises; Hot water backwater to heat pump and the hot water backwater come to one or more heat exchanger heat exchange intensification mix, and entering heating system becomes heating water supply, for heating system provides heat.
Another kind of gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery method, hot water backwater is via after heat pump heat temperature raising, enter one or more heat exchanger, heat exchange and secondary temperature elevation is carried out with high-temperature flue gas in one or more heat exchanger, enter hot water pipe net via one or more heat exchanger output and become heating water supply, for heating system provides heat; Gas fired-boiler or Central Air-Conditioner are discharged high-temperature flue gas and are entered one or more heat exchanger, carry out heat exchange with hot water backwater, and flue-gas temperature reduces; The flue gas of being discharged by one or more heat exchanger enters one or more condenser under air-introduced machine water conservancy diversion, and carry out heat exchange with the recirculated water to heat pump, flue-gas temperature is reduced to normal temperature further, and discharges; Heat exchange and the circulating water flow backheat pump after heating up in one or more condenser, drive heat pump to carry out heat temperature raising to hot water backwater.
The fume afterheat of gas fired-boiler or Central Air-Conditioner can all be recycled by the present invention, and supply water for heating, final exhaust gas temperature reduces to normal temperature, the multipurpose reaching energy-conservation, lower consumption, reduce discharging.
Accompanying drawing explanation
Fig. 1 is hot water backwater's parallel way structure principle chart of the present invention;
Fig. 2 is hot water backwater's series system structure principle chart of the present invention.
1-high-temperature flue gas inputs, 2-gas fired-boiler or Central Air-Conditioner, 3-heat exchanger, 4-hot water return pipe, 5-air-introduced machine, 6-condenser, and 7-flue gas exports, and 8-recirculated water goes out, and 9-recirculated water enters, 10-heat pump, 11-hot water delivery pipe.
Detailed description of the invention
See Fig. 1, Fig. 2 two example structure schematic diagrams of the present invention, gas fired-boiler of the present invention or Central Air-Conditioner fume afterheat total heat recovery system, comprise gas fired-boiler or Central Air-Conditioner, one or more heat exchanger, air-introduced machine, one or more condenser, heat pump, gas fired-boiler or Central Air-Conditioner high temp. flue connect one or more heat exchanger flue gas input, the flue gas output of one or more heat exchanger connects the flue gas input of one or more condenser by air-introduced machine, the flue gas output of one or more condenser leads to outdoor by pipeline, the circulating water pipe of one or more condenser connects the evaporimeter of heat pump, the hot-water heating system of flue gas waste heat recovery connects and is divided into parallel connection and/or series connection two kinds of modes, parallel way is: hot water return pipe divides two-way to connect one or more heat exchanger and heat pump respectively, and one or more heat exchanger is connected heating system with hot water backwater's efferent duct of heat pump, series system is: hot water return pipe connects heat pump, and the hot water delivery pipe of heat pump is connected to one or more heat exchanger, and hot water backwater's efferent duct of one or more heat exchanger connects heating system.
Gas fired-boiler of the present invention or Central Air-Conditioner fume afterheat total heat recovery method, hot water return pipe divides two-way, one tunnel connects one or more heat exchanger, another road connects heat pump, gas fired-boiler or Central Air-Conditioner are discharged high-temperature flue gas and are entered one or more heat exchanger, carry out heat exchange with hot water backwater, flue-gas temperature reduces, and hot water backwater's temperature raises.The flue gas of being discharged by one or more heat exchanger enters one or more condenser under air-introduced machine water conservancy diversion, and carry out heat exchange with the recirculated water to heat pump, flue-gas temperature is reduced to normal temperature further, and discharges.Heat exchange and the circulating water flow backheat pump after heating up in one or more condenser, heat pump reclaims recirculated water heat, and hot water backwater's temperature that heat pump exports raises; Hot water backwater to heat pump and the hot water backwater come to one or more heat exchanger heat exchange intensification mix, and entering heating system becomes heating water supply, for heating system provides heat.
Another kind of gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery method, hot water backwater is via after heat pump heat temperature raising, enter one or more heat exchanger, heat exchange and secondary temperature elevation is carried out with high-temperature flue gas in one or more heat exchanger, enter hot water pipe net via one or more heat exchanger output and become heating water supply, for heating system provides heat; Gas fired-boiler or Central Air-Conditioner are discharged high-temperature flue gas and are entered one or more heat exchanger, carry out heat exchange with hot water backwater, and flue-gas temperature reduces; The flue gas of being discharged by one or more heat exchanger enters one or more condenser under air-introduced machine water conservancy diversion, and carry out heat exchange with the recirculated water to heat pump, flue-gas temperature is reduced to normal temperature further, and discharges; Heat exchange and the circulating water flow backheat pump after heating up in one or more condenser, drive heat pump to carry out heat temperature raising to hot water backwater.
Claims (3)
1. a gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery system, it is characterized in that, comprise gas fired-boiler or Central Air-Conditioner, one or more heat exchanger, air-introduced machine, one or more condenser, heat pump, gas fired-boiler or Central Air-Conditioner high temp. flue connect one or more heat exchanger flue gas input, the flue gas output of one or more heat exchanger connects the flue gas input of one or more condenser by air-introduced machine, the flue gas output of one or more condenser leads to outdoor by pipeline, the circulating water pipe of one or more condenser connects the evaporimeter of heat pump, the hot-water heating system of flue gas waste heat recovery connects and is divided into parallel connection and/or series connection two kinds of modes, parallel way is: hot water return pipe divides two-way to connect one or more heat exchanger and heat pump respectively, and one or more heat exchanger is connected heating system with hot water backwater's efferent duct of heat pump, series system is: hot water return pipe connects heat pump, and the hot water delivery pipe of heat pump is connected to one or more heat exchanger, and hot water backwater's efferent duct of one or more heat exchanger connects heating system.
2. a gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery method, it is characterized in that, hot water return pipe divides two-way, one tunnel connects one or more heat exchanger, another road connects heat pump, and gas fired-boiler or Central Air-Conditioner are discharged high-temperature flue gas and entered one or more heat exchanger, carry out heat exchange with hot water backwater, flue-gas temperature reduces, and hot water backwater's temperature raises; The flue gas of being discharged by one or more heat exchanger enters one or more condenser under air-introduced machine water conservancy diversion, and carry out heat exchange with the recirculated water to heat pump, flue-gas temperature is reduced to normal temperature further, and discharges; Heat exchange and the circulating water flow backheat pump after heating up in one or more condenser, heat pump reclaims recirculated water heat, and hot water backwater's temperature that heat pump exports raises; Hot water backwater to heat pump and the hot water backwater come to one or more heat exchanger heat exchange intensification mix, and entering heating system becomes heating water supply, for heating system provides heat.
3. a gas fired-boiler or Central Air-Conditioner fume afterheat total heat recovery method, it is characterized in that, hot water backwater is via after heat pump heat temperature raising, enter one or more heat exchanger, heat exchange and secondary temperature elevation is carried out with high-temperature flue gas in one or more heat exchanger, enter hot water pipe net via one or more heat exchanger output and become heating water supply, for heating system provides heat; Gas fired-boiler or Central Air-Conditioner are discharged high-temperature flue gas and are entered one or more heat exchanger, carry out heat exchange with hot water backwater, and flue-gas temperature reduces; The flue gas of being discharged by one or more heat exchanger enters one or more condenser under air-introduced machine water conservancy diversion, and carry out heat exchange with the recirculated water to heat pump, flue-gas temperature is reduced to normal temperature further, and discharges; Heat exchange and the circulating water flow backheat pump after heating up in one or more condenser, heat pump carries out heat temperature raising to hot water backwater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510469706.7A CN105066219A (en) | 2015-08-04 | 2015-08-04 | Total flue gas waste heat recovery system and method for gas boiler or direct-fired machine |
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| CN201510469706.7A CN105066219A (en) | 2015-08-04 | 2015-08-04 | Total flue gas waste heat recovery system and method for gas boiler or direct-fired machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108033A (en) * | 2019-03-12 | 2019-08-09 | 北京北燃供热有限公司 | It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus |
| CN111059563A (en) * | 2020-01-19 | 2020-04-24 | 新疆和融热力有限公司 | Flue gas waste heat degree of depth recovery economizer system based on gas boiler |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20014741U1 (en) * | 2000-09-12 | 2001-04-19 | Wolter Gerhard | Condensing heating systems consisting of low and low temperature boilers / heat pumps |
| CN1415901A (en) * | 2001-10-31 | 2003-05-07 | 清华大学 | Heating system with electric heat pump by use of recycling latent heat in flue gas of gas fired boiler and oil burning boiler |
| CN101769594A (en) * | 2008-12-29 | 2010-07-07 | 苏桐梅 | Flue gas total-heat recovery device of gas boiler |
| JP2010243012A (en) * | 2009-04-02 | 2010-10-28 | Miura Co Ltd | Exhaust gas heat recovery device |
| CN202002390U (en) * | 2011-01-12 | 2011-10-05 | 李正春 | Boiler system with tail gas heat energy recycling function |
| CN202149478U (en) * | 2011-07-01 | 2012-02-22 | 广东汇嵘节能服务有限公司 | System for recycling waste heat of boiler |
| KR20120112902A (en) * | 2011-04-04 | 2012-10-12 | 한국에너지기술연구원 | Boiler flue gas heat recovery system using heat pump |
| CN203336678U (en) * | 2013-05-21 | 2013-12-11 | 青岛宏宇环保空调设备有限公司 | Boiler smoke discharge and waste heat recovery heat pump heating system |
| CN103438575A (en) * | 2013-08-30 | 2013-12-11 | 北京金房暖通节能技术股份有限公司 | System for deep utilization of low-temperature discharged smoke from gas-fired boiler and control method thereof |
| CN103954039A (en) * | 2014-04-02 | 2014-07-30 | 华电电力科学研究院 | Device and method for recycling smoke condensate heat energy of gas boiler in heat pumping mode |
| CN204214166U (en) * | 2014-09-26 | 2015-03-18 | 北京金房暖通节能技术股份有限公司 | Water source heat pump units and flue gas waste heat recovery apparatus combined operation system |
| CN204285583U (en) * | 2014-11-27 | 2015-04-22 | 大连圣鼎工业装备有限公司 | The heat pump heat distribution system of high efficient gas boiler flue gas waste heat recovery |
| CN204901904U (en) * | 2015-08-04 | 2015-12-23 | 湖南同为节能科技有限公司 | Gas boiler or full heat recovery system of direct combustion machine flue gas waste heat |
-
2015
- 2015-08-04 CN CN201510469706.7A patent/CN105066219A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20014741U1 (en) * | 2000-09-12 | 2001-04-19 | Wolter Gerhard | Condensing heating systems consisting of low and low temperature boilers / heat pumps |
| CN1415901A (en) * | 2001-10-31 | 2003-05-07 | 清华大学 | Heating system with electric heat pump by use of recycling latent heat in flue gas of gas fired boiler and oil burning boiler |
| CN101769594A (en) * | 2008-12-29 | 2010-07-07 | 苏桐梅 | Flue gas total-heat recovery device of gas boiler |
| JP2010243012A (en) * | 2009-04-02 | 2010-10-28 | Miura Co Ltd | Exhaust gas heat recovery device |
| CN202002390U (en) * | 2011-01-12 | 2011-10-05 | 李正春 | Boiler system with tail gas heat energy recycling function |
| KR20120112902A (en) * | 2011-04-04 | 2012-10-12 | 한국에너지기술연구원 | Boiler flue gas heat recovery system using heat pump |
| CN202149478U (en) * | 2011-07-01 | 2012-02-22 | 广东汇嵘节能服务有限公司 | System for recycling waste heat of boiler |
| CN203336678U (en) * | 2013-05-21 | 2013-12-11 | 青岛宏宇环保空调设备有限公司 | Boiler smoke discharge and waste heat recovery heat pump heating system |
| CN103438575A (en) * | 2013-08-30 | 2013-12-11 | 北京金房暖通节能技术股份有限公司 | System for deep utilization of low-temperature discharged smoke from gas-fired boiler and control method thereof |
| CN103954039A (en) * | 2014-04-02 | 2014-07-30 | 华电电力科学研究院 | Device and method for recycling smoke condensate heat energy of gas boiler in heat pumping mode |
| CN204214166U (en) * | 2014-09-26 | 2015-03-18 | 北京金房暖通节能技术股份有限公司 | Water source heat pump units and flue gas waste heat recovery apparatus combined operation system |
| CN204285583U (en) * | 2014-11-27 | 2015-04-22 | 大连圣鼎工业装备有限公司 | The heat pump heat distribution system of high efficient gas boiler flue gas waste heat recovery |
| CN204901904U (en) * | 2015-08-04 | 2015-12-23 | 湖南同为节能科技有限公司 | Gas boiler or full heat recovery system of direct combustion machine flue gas waste heat |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108033A (en) * | 2019-03-12 | 2019-08-09 | 北京北燃供热有限公司 | It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus |
| CN111059563A (en) * | 2020-01-19 | 2020-04-24 | 新疆和融热力有限公司 | Flue gas waste heat degree of depth recovery economizer system based on gas boiler |
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| C06 | Publication | ||
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Application publication date: 20151118 |