CN203980632U - Recovered flue gas heat-pump apparatus - Google Patents
Recovered flue gas heat-pump apparatus Download PDFInfo
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- CN203980632U CN203980632U CN201420326034.5U CN201420326034U CN203980632U CN 203980632 U CN203980632 U CN 203980632U CN 201420326034 U CN201420326034 U CN 201420326034U CN 203980632 U CN203980632 U CN 203980632U
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Abstract
A kind of recovered flue gas heat-pump apparatus, comprises air source hot pump water heater body, is arranged on evaporimeter, air-water heat exchanger, hybrid cooling device, water-water heat exchanger and the first water tank in air source heat pump.This recovered flue gas heat-pump apparatus can utilize boiler exhaust gas gas waste heat, makes again the working environment of heat pump improve, and makes source heat pump no longer be subject to the restriction of the problem of frosting and poor efficiency in the application of cold district, effectively reduces the heating cost of hot water.High temperature hot gas is converted to low temperature, provide heating 60 DEG C of condensed water, the water resource heat pump conversion high-temperature-hot-waters reclaiming.
Description
Technical field
The utility model relates to heat pump hot gas and reclaims field, is a kind of recovered flue gas heat-pump apparatus specifically.
Background technology
For reducing the pollution of boiler smoke to urban atmosphere, many city limits coal-burning boilers, the gas fired-boiler that the natural gas of greatly developing to clean is fuel.The exhaust gas temperature (steam boiler is more than 140 DEG C) more than 90 DEG C of gas-fired water heating boiler at present, particularly the heating season in the north, has a large amount of heat energy to be exhausted into air, has not only wasted the energy, has also discharged a large amount of CO
2, the pernicious gas such as NO, aggravated atmosphere pollution.Existing mature technology adopts air-water heat exchanger by after waste heat recovery, and its exhaust gas temperature is still 80 DEG C of left and right.The hot water facility that air-cooled heat pump hot gas source is current energy-saving and environmental protection, Energy Efficiency Ratio is high, technology maturation, promotes the use of rapidly at the southern area of China air-cooled heat pump hot gas source.But the problem that due to winter low temperature, the evaporimeter frosting of equipment and the Energy Efficiency Ratio of equipment is reduced in the north has restricted the universal and development of this technology at northern area.
Utility model content
The purpose of this utility model is to provide a kind of recovered flue gas heat-pump apparatus, can utilize boiler exhaust gas gas waste heat, make again the working environment of heat pump improve, make source heat pump no longer be subject to the restriction of the problem of frosting and poor efficiency in the application of cold district, effectively reduce the heating cost of hot water.High temperature hot gas is converted to low temperature, provide heating 60 DEG C of condensed water, the water resource heat pump conversion high-temperature-hot-waters reclaiming.
The purpose of this utility model is achieved through the following technical solutions.
The utility model provides a kind of recovered flue gas heat-pump apparatus, comprise air source hot pump water heater body, be arranged on the evaporimeter in air source heat pump, air-water heat exchanger, hybrid cooling device, water-water heat exchanger and the first water tank, between air-water heat exchanger and the exhaust gases passes of gas fired-boiler, be connected with the first flue, between air-water heat exchanger and hybrid cooling device, be connected with the second flue, between hybrid cooling device and evaporimeter, be connected with the 3rd flue, on the outlet pipe of evaporimeter, being provided with muffler is connected with hybrid cooling device, between the first water tank and air-water heat exchanger, be connected with circulating water pipe, on circulating water pipe, be provided with circulating pump, air-water heat exchanger, hybrid cooling device and Teat pump boiler body are connected with respectively condensate pipe, each condensate pipe is connected with water-water heat exchanger, water-water heat exchanger is connected with the water pipe of the source water (from the running water of the first water tank) that will heat, the first water tank is connected with air source hot pump water heater body by water inlet pipe, on inlet pipeline, be provided with water pump, between air source hot pump water heater body and water tank, be connected with outlet pipe.Described air-water heat exchanger is the heat exchanger that carries out heat exchange for gas and water, and described water-water heat exchanger is the temperature difference of utilizing between water, the heat exchanger that carries out the heat exchange of water and water.Hybrid cooling device comprises a chamber and the water spray equipment arranging in this chamber, contacts to reduce flue-gas temperature by the water smoke of spraying with flue gas in hybrid cooling device chamber.
Preferably, the import of the first flue is double feed inlet structure.In addition, preferably, in the 3rd flue, be provided with nertralizer dispenser, for and condensed water in acid.
On said system basis, after recovery heat pump completes, a set of water resource heat pump, water tank, air-cooled heat pump and solar energy composition second level warming room refrigeration system are established in the second level.; the first water tank is connected with the second water tank with outlet pipe by water inlet pipe (water inlet pipe is provided with water pump); the second water tank is connected with water resource heat pump with outlet pipe (outlet pipe is provided with water pump) by water inlet pipe; water resource heat pump is connected with three-tank with outlet pipe (outlet pipe is provided with water pump) by water inlet pipe, and three-tank is provided with heating installation feed water inlet.
One-level reclaims hot water, is recycled to storage water tank interior by water resource heat pump, promotes high temperature heating.The temperature cycles of solar energy provides water resource heat pump low-temperature-rise high temperature to storing in water tank, summer, water resource heat pump provided refrigeration by water tank and cooling device circulation, solar energy mixes with air-conditioning source heat pump not to be subject to 3 yuan/ton of weather effect output 60 tons of hot water costs every day summer, and water source and air-cooled heat pump combination can be used for indoor refrigeration.
The utility model compared with prior art has the following advantages:
(1) need heat in view of the flue gas heat extraction at heating gas fired-boiler in season and air-conditioning air supply heat pump water heater, consistent in time, on energy, be complementary, therefore the key character of this technology is exactly by the thermal that needs of the low-temperature flue gas heat extraction of gas fired-boiler and air source hot pump water heater, make the heat energy of the smoke evacuation of gas fired-boiler be converted into the thermal source of air source water heater, create the environment that can efficiently move to air source hot pump water heater, solve the difficult problem that air source hot pump water heater moves in the winter time, when heating cost, reduction also reclaims a large amount of condensed waters, reduce gas fired-boiler to the pernicious gas discharging in atmosphere, realize energy-conservation, reduce discharging, the environmental benefit social benefit of water saving.
(2), according to northern climatic characteristic, the temperature in three seasons of spring and summer autumn is all applicable to the operation of air source hot pump water heater, while only having winter low temperature, is affected.Adopt after this technology, by the flue gas of the gas fired-boiler of warming, through cooling and dewatering processing, reuse is done thermal source to air source hot pump water heater, can produce the effect of achieving many things at one stroke.Analyze from the whole year, heating boiler smoke evacuation and efficiently operating on space-time of heat pump are complementary, while being temperature higher (>=14 DEG C), heat pump working environment is better, in the work of efficient district, COP value can reach 4-6 in summer, spring and autumn can reach 3-5, and when winter temperature declines, operation of heat pump ecological deterioration even can not move, but heating boiler brings into operation, boiler exhaust gas gas waste heat can utilize, make again the working environment of heat pump improve, and temperature is lower, boiler load is larger, discharge fume afterheat more, the convertible heat energy of heat pump is more.Can adjust according to the needs of heat pump for flue-gas temperature, heat pump can obtain than spring and summer not bad environment temperature and service condition in autumn, COP value can reach 4-6, in this meaning view, under all conditions that has gas-fired equipment flue gas waste heat-recovering, air source heat pump is no longer subject to the restriction of the problem of frosting and poor efficiency in the application of cold district, by the high energy-conservation research equipment of recuperation of heat conversion, with single supplying hot water, the mixing that is converted to spring and summer refrigeration is not subject to the energy-saving equipment of seasonality.
Brief description of the drawings
Fig. 1 is the utility model flue gas heat-pump apparatus functional-block diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model recovered flue gas heat-pump apparatus is described in further detail.
As shown in Figure 1, the utility model recovered flue gas heat-pump apparatus comprises air source hot pump water heater body 1, evaporimeter 2, air-water heat exchanger 5, hybrid cooling device 6, water-water heat exchanger 10 and the first water tank 3, between the exhaust gases passes of air-water heat exchanger 5 and gas fired-boiler 4, be connected with the first flue 11, between air-water heat exchanger 5 and hybrid cooling device 6, be connected with the second flue 21, between hybrid cooling device 6 and evaporimeter 2, be connected with the 3rd flue 22, on the outlet pipe of evaporimeter 2, being provided with muffler 12 is connected with hybrid cooling device 6, between the first water tank 3 and air-water heat exchanger 5, be connected with circulating water pipe, on circulating water pipe, be provided with circulating pump 8, air-water heat exchanger 5, hybrid cooling device 6 and Teat pump boiler body 1 are connected with respectively condensate pipe, each condensate pipe is connected with water-water heat exchanger 10, water-water heat exchanger 10 is connected with the water pipe of the source water (from the running water of the first water tank 3) that will heat, the first water tank 3 is connected with air source hot pump water heater body 1 by water inlet pipe, on inlet pipeline, be provided with water pump 9, between air source hot pump water heater body 1 and the first water tank 3, be connected with outlet pipe.
Preferably, the import of the first flue is double feed inlet structure.In addition, preferably, in the 3rd flue, be provided with nertralizer dispenser 7, for and condensed water in acid.
Preferably, the first water tank 3 is connected with the second water tank 13 with outlet pipe by water inlet pipe (water inlet pipe is provided with water pump 17), the second water tank 13 is connected with water resource heat pump 15 with outlet pipe (outlet pipe is provided with water pump 16) by water inlet pipe, and water resource heat pump 15 is connected with three-tank 14 with outlet pipe (outlet pipe is provided with water pump 18) by water inlet pipe.
The flue gas (temperature is at 160～230 DEG C) coming from chimney enters air-water heat exchanger 5, the water coming with water tank 1 circulation carries out heat exchange, by the water storage of water tank 1 (running water) heating (can reach 30 DEG C), then send back in water tank 1, by air-water heat exchanger 5, flue-gas temperature is lowered to 75～85 DEG C, common 80 DEG C of left and right, (hybrid cooling device comprises a chamber and the water spray equipment arranging in this chamber to enter hybrid cooling device 6, water smoke by spraying contacts to reduce flue-gas temperature with flue gas in hybrid cooling device chamber) in, flue gas is at air-water heat exchanger 5, the condensed water that in hybrid cooling device 6, condensation is got off is incorporated in condensate pipe, in water-water heat exchanger 10 with carry out heat exchange from the running water in water tank 1 and (water from water tank 1 can be elevated to 35～45 DEG C from 20 DEG C of left and right, common 40 DEG C), contact with running water spraying hybrid cooling device 6 from air-water heat exchanger 5 flue gas out, flue-gas temperature drops to 35～40 DEG C, preferably 38 DEG C of left and right, then enter in air source heat pump 1 by the 3rd gas flue, in air source heat pump 1, entering air source heat pump fin thermal energy exchange compresses through compressor, condensation, throttling, the thermodynamic cycle of evaporation, then return to hybrid cooling device by the muffler part arranging on the outlet pipe on the evaporimeter of air source heat pump 1, a part by discharge of pipes in atmosphere, in air source heat pump, have the water under condensation from flue gas and enter condensate pipe, in water-water heat exchanger 10 with water tank 3 in water carry out heat exchange, after such exchange, the water from water tank 3 can be heated to approximately 40 DEG C from approximately 20 DEG C, then the water of water tank 3 supply feed-tank 13, offering water resource heat pump 15 condensers by water tank 13 loops conversion and is heated to 55-70 DEG C of hot water, be used further to heating for feed-tank 14, water tank 14 is provided with water inlet (entering cold water), for supplying feed-tank 14 source water.Running water is entered in water tank 14 upper ends, and side goes out 55-60 DEG C of hot water.
Simultaneously, at night, utilize air source heat pump 1 that the water from the first water tank 3 is heated to 40～45 DEG C from 15～20 DEG C, because the operating load peak of winter heating boiler is generally at night, therefore air source hot pump water heater also can be enjoyed in operation at night the policy of paddy electricity, another has reduced water producing cost, also can play the effect of peak load regulation network simultaneously.If calculated according to 0.3 yuan of Beijing trough-electricity/degree, only have 1.2 yuan at one ton of water power consumption of this link heating, 4 its costs of degree.
Be heated to the air-water heat exchanger 5 that the hot water of about 40-45 DEG C is transported to high-temperature flue gas reuse part again and be further heated to approximately 60 DEG C, can be used for heating, because flue-gas temperature 120 DEG C (steam oven is 150 DEG C) is larger with the temperature difference of heated water, so heat exchange efficiency is also very high.This link does not have operating cost (lower the ignoring of power of circulating pump) yet.
Advantage of the present utility model:
Adopt after technology of the present utility model, can reduce by three links the heating cost of hot water:
1. flue gas will be discharged the condensed water of large amount temperature more than 40 DEG C in the process of heat exchanger cooling, first by water-water heat exchanger, source water to be heated is heated to (for example can be heated to 22 DEG C from 15 DEG C), and this link does not produce operating cost.
2. source to be heated water is heated to 42 DEG C through air source heat pump from 18 DEG C, and according to the characteristic curve of air source hot pump water heater, when the temperature difference of Inlet and outlet water is less than 20 DEG C, its COP value is the highest.Therefore, this link will allow air source water heater in the work of efficient district, and its COP can reach 5-6,4 DEG C of electricity of water heating 20 DEG C of need of temperature rise per ton, and cost is approximately 400 yuan.Because the operating load peak of winter heating boiler is generally at night, therefore air source hot pump water heater also can be enjoyed in operation at night the policy of paddy electricity, and another has reduced water producing cost, also can play the effect of peak load regulation network simultaneously.If calculated according to 0.3 yuan of Beijing trough-electricity/degree, only have 1.2 yuan at one ton of water power consumption of this link heating, 4 its costs of degree.
3. the hot water that has been heated to 40 DEG C is further heated to 60 DEG C because flue-gas temperature 120 DEG C (steam oven is 150 DEG C) is larger with the temperature difference of heated water, so heat exchange efficiency is also very high through the air-water heat exchanger of high-temperature flue gas reuse part again.This link does not have operating cost (lower the ignoring of power of circulating pump) yet.
4. due to the High Efficiency Thermal exchange by above-mentioned three links, combustion of natural gas fume afterheat (can be comprised to sensible heat and latent heat, wherein latent heat accounts for the more than 10% of Lowlevel thermal energy) be all used, if be benchmark according to low heat valve, the integrated heat efficiency that can make gas fired-boiler add this technology reaches more than 110%, produces well energy-conservation effect.
In the composition of natural gas, the overwhelming majority is hydrocarbon, after burning, produce a large amount of water gasification for steam (account for flue gas total measurement (volume) 20%) with fume emission in atmosphere.After each cubic metre of natural gas burning, can produce the steam of 1.55 kilograms.Steam in the flue gas of exhaust temperature more than 120 DEG C is in superheat state.Because the condensation temperature of steam is 58 DEG C of left and right, flue gas is dropped to 70-90 DEG C by existing off-gas recovery technology, also can only reclaim small part condensed water.Due to the application of this technology, the flue gas of gas fired-boiler utilizes through three coolings, by the near final exhaust temperature outside air temperature that approaches, in reuse heat energy, reclaims to greatest extent condensed water.With one 4 tons gas and hot water heating furnace gauges, move 20 hours every day, consumption gas 320M per hour
з, 6400M need burn every day
зnatural gas.In the flue gas of its discharge, can reclaim 10 tons/day of condensed waters.2008 Beijing city consumes natural gas 5,200,000,000 M altogether
зif, its flue gas condensing water of 50% is reclaimed, can reach 5,000,000 tons of water, the water yield of a suitable small reservoir.
Owing to producing a large amount of condensed waters in three temperature-fall periods, the most of CO in flue gas
2, NO
xcan be dissolved in condensed water and make it be faintly acid Deng pernicious gas.So just reduce gas fired-boiler to the pernicious gas discharging in atmosphere, produced certain bad border benefit, contributed for further purifying in the winter time Pekinese's air.
It is below the analysis of techno-economic benefits;
The cost compare of present situation hot water (one ton of water is heated to 55 DEG C from 15 DEG C, and temperature rise is 40 DEG C)
Taking heating boiler as six four tons of gas-fired water heating boilers are as example, wherein five winter operation heating, a whole year operation is specialized in domestic hot-water.Present situation domestic water is 40 tons of every days.According to reality measuring and calculating, because water consumption is less, boiler operatiopn management cost is very high, and the cost of current water heating per ton is 33.80 yuan.As adopt heat pump scheme, adopting the heating cost of heat pump in three seasons of spring and summer autumn is 6579 yuan.Adopt off-gas recovery and heat pump united winter, recycling low ebb electricity price, water heating cost per ton can further reduce.5 yuan of annual hot water heating cost average out to.Than reducing 28 yuan with gas fired-boiler heating at present, economic benefit is very obvious.
Investment estimate: according to measuring and calculating, air source hot pump water heater investment is 1.5 ten thousand yuan/ton of water/days, needs 600,000 yuan, and water-saving heat exchanging device, hybrid cooling device, 50 tons of water tanks etc. need 350,000 yuan, amount to 950,000 yuan of investments.According to 28 yuan of the 40 tons of saving per ton of supplying water day, move every year 330 days, can save altogether 450,000 yuan, recoverable investment in 2 years.
Claims (4)
1. a recovered flue gas heat-pump apparatus, it is characterized in that, it comprises air source hot pump water heater body, be arranged on the evaporimeter in air source heat pump, air-water heat exchanger, hybrid cooling device, water-water heat exchanger and the first water tank, between air-water heat exchanger and the exhaust gases passes of gas fired-boiler, be connected with the first flue, between air-water heat exchanger and hybrid cooling device, be connected with the second flue, between hybrid cooling device and evaporimeter, be connected with the 3rd flue, on the outlet pipe of evaporimeter, being provided with muffler is connected with hybrid cooling device, between the first water tank and air-water heat exchanger, be connected with circulating water pipe, on circulating water pipe, be provided with circulating pump, air-water heat exchanger, hybrid cooling device and Teat pump boiler body are connected with respectively condensate pipe, each condensate pipe is connected with water-water heat exchanger, water-water heat exchanger is connected with the water pipe of the source water that will heat, the first water tank is connected with air source hot pump water heater body by water inlet pipe, on inlet pipeline, be provided with water pump, between air source hot pump water heater body and water tank, be connected with outlet pipe.
2. recovered flue gas heat-pump apparatus according to claim 1, is characterized in that, the import of the first flue is double feed inlet structure.
3. recovered flue gas heat-pump apparatus according to claim 1, is characterized in that, in the 3rd flue, is provided with nertralizer dispenser.
4. recovered flue gas heat-pump apparatus according to claim 1, it is characterized in that, the first water tank is further connected with the second water tank with outlet pipe by water inlet pipe, the second water tank is connected with water resource heat pump with outlet pipe by water inlet pipe, water resource heat pump is connected with three-tank with outlet pipe by water inlet pipe, and three-tank is provided with heating installation feed water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326034.5U CN203980632U (en) | 2014-06-18 | 2014-06-18 | Recovered flue gas heat-pump apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326034.5U CN203980632U (en) | 2014-06-18 | 2014-06-18 | Recovered flue gas heat-pump apparatus |
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| CN203980632U true CN203980632U (en) | 2014-12-03 |
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| CN201420326034.5U Expired - Fee Related CN203980632U (en) | 2014-06-18 | 2014-06-18 | Recovered flue gas heat-pump apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482781A (en) * | 2014-12-30 | 2015-04-01 | 黑龙江国德节能服务有限公司 | Device for extracting flue gas heat source by virtue of stainless steel brazed heat exchangers and extraction method |
| CN105222335A (en) * | 2014-06-18 | 2016-01-06 | 郭洪雨 | Recovered flue gas heat-pump apparatus |
| CN108716788A (en) * | 2018-07-11 | 2018-10-30 | 佛山市顺德区满凌电器有限公司 | All-in-one cold and hot multifunctional equipment and its operation principle |
| CN111841238A (en) * | 2020-06-08 | 2020-10-30 | 湖南沃工环境科技有限公司 | Adsorption desorption and catalytic combustion integrated waste gas treatment system |
-
2014
- 2014-06-18 CN CN201420326034.5U patent/CN203980632U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222335A (en) * | 2014-06-18 | 2016-01-06 | 郭洪雨 | Recovered flue gas heat-pump apparatus |
| CN104482781A (en) * | 2014-12-30 | 2015-04-01 | 黑龙江国德节能服务有限公司 | Device for extracting flue gas heat source by virtue of stainless steel brazed heat exchangers and extraction method |
| CN108716788A (en) * | 2018-07-11 | 2018-10-30 | 佛山市顺德区满凌电器有限公司 | All-in-one cold and hot multifunctional equipment and its operation principle |
| CN111841238A (en) * | 2020-06-08 | 2020-10-30 | 湖南沃工环境科技有限公司 | Adsorption desorption and catalytic combustion integrated waste gas treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190618 |