CN209744401U - Waste incineration flue gas waste heat utilization system based on absorption heat pump - Google Patents
Waste incineration flue gas waste heat utilization system based on absorption heat pump Download PDFInfo
- Publication number
- CN209744401U CN209744401U CN201920344079.8U CN201920344079U CN209744401U CN 209744401 U CN209744401 U CN 209744401U CN 201920344079 U CN201920344079 U CN 201920344079U CN 209744401 U CN209744401 U CN 209744401U
- Authority
- CN
- China
- Prior art keywords
- exchange tube
- heat exchange
- heat
- waste
- heat pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
the utility model relates to a waste incineration flue gas waste heat utilization system based on an absorption heat pump, which comprises a waste heat boiler, an economizer, the absorption heat pump, a condensed water heat exchanger, a condensed water storage tank and a condensed water feed tank; the waste heat boiler waste gas outlet economizer is connected with a pipeline, and the economizer is connected with an air inlet of the absorption heat pump; the condensation water heat exchanger comprises a first heat exchange tube and a second heat exchange tube, one end of the first heat exchange tube is connected with a condensation water storage tank, the other end of the first heat exchange tube is connected with a water inlet of the absorption heat pump, one end of the second heat exchange tube is connected with a water outlet of the absorption heat pump, the other end of the second heat exchange tube is connected with a condensation water supply tank, and the condensation water supply tank is connected with a condensation coil in the waste heat boiler. The high-temperature waste gas can be reduced to a lower temperature, and the energy utilization efficiency of various energy systems generating flue gas is further improved.
Description
Technical Field
The utility model relates to an environmental protection field, concretely relates to waste incineration flue gas waste heat utilization system based on absorption heat pump.
background
at present, the incineration treatment mode is more and more emphasized as the mainstream treatment measure of domestic garbage at home and abroad, and with the enhancement of the public environmental protection consciousness of the society, the improvement of the incineration technical equipment level and the gradual implementation of the garbage classification system, the domestic garbage incinerator is also developed towards the directions of large capacity, high calorific value and high parameters, so that the occupied area and the unit investment can be simultaneously saved, and the unit efficiency is improved.
The traditional waste heat boiler directly discharges high-temperature flue gas containing a large amount of waste heat and steam into the atmosphere, a large amount of available energy is wasted, and the thermal efficiency of the boiler is low. The traditional waste heat recovery mode can only recover part of obvious and a small amount of latent heat in the flue gas, and the heat waste is serious.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and a waste incineration flue gas waste heat utilization system based on an absorption heat pump is provided.
The utility model provides a technical scheme that its technical problem adopted is: a waste incineration flue gas waste heat utilization system based on an absorption heat pump comprises a waste heat boiler, a coal economizer, the absorption heat pump, a condensed water heat exchanger, a condensed water storage tank and a condensed water feed tank;
The waste heat boiler waste gas outlet economizer is connected with the waste heat boiler waste gas outlet by a pipeline, and the economizer is connected with an air inlet of the absorption heat pump;
The condensation water heat exchanger comprises a first heat exchange tube and a second heat exchange tube, one end of the first heat exchange tube is connected with a condensation water storage tank, the other end of the first heat exchange tube is connected with a water inlet of the absorption heat pump, one end of the second heat exchange tube is connected with a water outlet of the absorption heat pump, the other end of the second heat exchange tube is connected with a condensation water supply tank, and the condensation water supply tank is connected with a condensation coil in the waste heat boiler.
further, the system also comprises a low-pressure turbine and a low-pressure heater;
The low-pressure heater comprises a low-pressure heating box and a third heat exchange tube, the tube wall of the third heat exchange tube is positioned in the low-pressure heating box, one end of the third heat exchange tube is connected with a condensed water storage box, and the other end of the third heat exchange tube is connected with a condensed water feed tank;
The low-pressure steam turbine comprises a steam pipe and a condensate pipe, the steam pipe is connected with the low-pressure heating box, and the condensate pipe is connected with the condensate water storage box.
and one end of the dust remover is connected with the economizer, and the other end of the dust remover is connected with an air inlet of the absorption heat pump.
The utility model has the advantages that:
The utility model discloses a waste incineration flue gas waste heat utilization system based on absorption heat pump can reduce high temperature waste gas to lower temperature, and then promotes the energy efficiency of the various energy systems that produce the flue gas.
The high-temperature waste gas is subjected to twice heat exchange, temperature reduction and condensation, so that the content of water vapor in the waste gas is fully reduced, and the possibility of generating white smoke after the waste gas is discharged into the environment is reduced.
The condensate water produced in the flue gas heat exchange process can be used for boiler water supply, so that the water consumption of the whole plant is reduced, and the water is saved.
The heating object of flue gas heat transfer is the steam turbine comdenstion water, can improve exhaust-heat boiler comdenstion water temperature of intaking, can improve exhaust-heat boiler's steam parameter, makes the generating efficiency of whole factory obtain promoting.
drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a flue gas waste heat utilization system of the present invention;
FIG. 2 is a schematic view of an absorption heat pump;
the system comprises a waste heat boiler 1, a coal economizer 2, a dust remover 3, a draught fan 4, an absorption heat pump 5, an absorption heat pump 51, a generator 52, a condenser 53, an evaporator 54, an absorber 6, a condensed water storage tank 7, a condensed water heat exchanger 8, a low-pressure heater 9, a condensed water feed tank 10 and a low-pressure turbine.
Detailed Description
the invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and fig. 2, a waste incineration flue gas waste heat utilization system based on an absorption heat pump 5 comprises a waste heat boiler 1, an economizer 2, the absorption heat pump 5, a condensed water heat exchanger 7, a condensed water storage tank 6 and a condensed water feed tank 9; the waste gas outlet of the waste heat boiler 1 is connected with a coal economizer 2 through a pipeline, and the coal economizer 2 is connected with an air inlet of an absorption heat pump 5.
In order to further improve the treatment of dust in the high-temperature flue gas, a dust remover 3 is added, preferably a cloth bag is used for dust removal, one end of the dust remover 3 is connected with the coal economizer 2, and the other end of the dust remover 3 is connected with an air inlet of an absorption heat pump 5.
http:// baijiahao.baidu.com/s？id＝1578565648232183030&wfr＝spider&for＝pcfor the purposes of the present invention, the absorption heat pump 5 is a relatively mature product, and is shown in the website http:// baijiahao. The work of which is described in detail by id 1578565648232183030& wfr for 2 pc; meanwhile, the working principle of the absorption heat pump 5 is also described in detail in the patent (patent number: CN201810754568.0) previously filed by the applicant.
as shown in fig. 2, the absorption heat pump 5 includes a generator 51, a condenser 52, an evaporator 53, an absorber 54, and a heat exchanger; the high temperature exhaust gas discharged from the economizer 2 passes through the generator 51 and the evaporator 53, so that the temperature of the high temperature exhaust gas is lowered;
The condensed water output by the condensed water heat exchanger 7 passes through the absorber 54 and the condenser 52, and the condensed water is heated.
The condensed water heat exchanger 7 comprises a water tank, a first heat exchange tube and a second heat exchange tube, the heat exchange tubes are coiled tubes, tube body parts of the first heat exchange tube and the second heat exchange tube are located in the water tank, water is filled in the water tank and serves as a heat exchange medium for absorbing heat of condensed water circulating in the first heat exchange tube and the second heat exchange tube, and heat exchange of the condensed water in the two heat exchange tubes is achieved.
Two ends of the first heat exchange tube and the second heat exchange tube are respectively positioned outside the water tank and are used for being connected with other pipelines; the condensation water storage tank 6 is connected to first heat exchange tube one end, and the comdenstion water import of absorption heat pump 5 is connected to the first heat exchange tube other end, and the comdenstion water export of absorption heat pump 5 is connected to second heat exchange tube one end, the second heat exchange tube other end is connected with comdenstion water feed tank 9, comdenstion water feed tank 9 is connected with the condensing coil in the exhaust-heat boiler 1.
In order to fully utilize the recovered heat energy and utilize the condensed water, the system also comprises a low-pressure turbine 10 and a low-pressure heater 8;
The low-pressure heater 8 comprises a low-pressure heating box and a third heat exchange tube, the heat exchange tube is a coil tube, the tube body part of the third heat exchange tube is positioned in the low-pressure heating box, a steam cavity is formed in the low-pressure heating box, steam is used for heating condensed water in the third heat exchange tube, one end of the third heat exchange tube is connected with a condensed water storage box 6, and the other end of the third heat exchange tube is connected with a condensed water feed tank 9.
The operating principle of the low pressure turbine 10 is: the steam turbine applies work through steam from the steam boiler to achieve power output, and the steam generates condensed water in the process of applying work. A part of the steam of the low pressure turbine 10 is now connected to the low pressure heating tank and the resulting condensate pipe is connected to the condensate storage tank 6.
During operation, the high-temperature flue gas of the waste heat boiler 1 firstly passes through the economizer 2 to reduce primary heat, then passes through the bag-type dust collector 3 to remove dust, is introduced into the generator 51 and the evaporator 53 of the absorption heat pump 5 through the induced draft fan 4, and is discharged from the evaporator 53 to perform flue gas desulfurization and then is discharged into the atmosphere; the heat of the high temperature flue gas is heat exchanged to the absorber 54 and the condenser 52.
The steam does work in the low pressure turbine 10 to generate condensed water, the condensed water is conveyed to the condensed water storage tank 6, the temperature of the condensed water in the condensed water storage tank 6 is about 25 ℃, a part of the condensed water in the condensed water storage tank 6 enters the absorption heat pump 5 through a first heat exchange pipe of the condensed water heater, the temperature of the condensed water is 30-40 ℃ when the condensed water is discharged from the first heat exchange pipe, then the condensed water is discharged after passing through an absorber 54 and a condenser 52 of the absorption heat pump 5, the temperature of the condensed water is heated to about 80 ℃, the condensed water at about 80 ℃ enters a second heat exchange pipe of the condensed water heater to exchange heat with the liquid in the water tank of the condensed water heat exchanger 7, at the moment, the temperature of the condensed water in the second heat exchange pipe is equivalently reduced, a part of heat is distributed to the liquid in the water tank, the heat exchange liquid in the water tank transfers the heat to the first heat exchange pipe after, the condensate flowing from the second heat exchange pipe is slightly lowered in temperature and then stored in the condensate feed tank 9.
The other part of the water in the condensed water storage tank 6 is conveyed into a third heat exchange pipe in the low-pressure heater 8, steam in the steam turbine enters the low-pressure heating tank to heat the outside of the third heat exchange pipe, so that condensed water in the third heat exchange pipe is heated, the condensed water flows out of the third heat exchange pipe and enters the condensed water feed tank 9, the temperature of the water in the condensed water feed tank 9 is 80-100 ℃, the condensed water required to enter the waste heat boiler 1 is preheated, and heat energy is recovered.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. A waste incineration flue gas waste heat utilization system based on an absorption heat pump is characterized by comprising a waste heat boiler (1), an economizer (2), the absorption heat pump (5), a condensed water heat exchanger (7), a condensed water storage tank (6) and a condensed water feed tank (9);
The waste gas outlet of the waste heat boiler (1) is connected with a coal economizer (2) through a pipeline, and the coal economizer (2) is connected with an air inlet of an absorption heat pump (5);
The condensation water heat exchanger (7) comprises a first heat exchange tube and a second heat exchange tube, one end of the first heat exchange tube is connected with a condensation water storage tank (6), the other end of the first heat exchange tube is connected with a water inlet of an absorption heat pump (5), one end of the second heat exchange tube is connected with a water outlet of the absorption heat pump (5), the other end of the second heat exchange tube is connected with a condensation water supply tank (9), and the condensation water supply tank (9) is connected with a condensation coil in the waste heat boiler (1).
2. The waste incineration flue gas waste heat utilization system based on the absorption heat pump as claimed in claim 1, further comprising a low pressure turbine (10) and a low pressure heater (8);
The low-pressure heater (8) comprises a low-pressure heating box and a third heat exchange tube, the tube wall of the third heat exchange tube is positioned in the low-pressure heating box, one end of the third heat exchange tube is connected with a condensed water storage box (6), and the other end of the third heat exchange tube is connected with a condensed water feed box (9);
The low-pressure steam turbine (10) comprises a steam pipe and a condensate pipe, the steam pipe is connected with the low-pressure heating box, and the condensate pipe is connected with the condensate water storage tank (6).
3. The waste incineration flue gas waste heat utilization system based on the absorption heat pump as claimed in claim 1 or 2, further comprising a dust remover (3), wherein one end of the dust remover (3) is connected with the economizer (2), and the other end of the dust remover (3) is connected with an air inlet of the absorption heat pump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344079.8U CN209744401U (en) | 2019-03-18 | 2019-03-18 | Waste incineration flue gas waste heat utilization system based on absorption heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344079.8U CN209744401U (en) | 2019-03-18 | 2019-03-18 | Waste incineration flue gas waste heat utilization system based on absorption heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209744401U true CN209744401U (en) | 2019-12-06 |
Family
ID=68717684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920344079.8U Active CN209744401U (en) | 2019-03-18 | 2019-03-18 | Waste incineration flue gas waste heat utilization system based on absorption heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209744401U (en) |
-
2019
- 2019-03-18 CN CN201920344079.8U patent/CN209744401U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109855109B (en) | Deep recovery device and method for exhaust gas waste heat of power station boiler | |
| CN102454980B (en) | Method for recycling flue gas waste heat of thermal power plant boiler | |
| CN102678206B (en) | Thermodynamic system for combined heat recovery of power plant | |
| CN105889897B (en) | A kind of thermal power plant residual heat integrative recycling system and method | |
| CN102401369B (en) | Method for improving quality of recyclable exhaust waste heat in power plant boiler and progressively utilizing exhaust waste heat | |
| CN101255983B (en) | Ultra low temperature smoke-discharging heat supply boiler | |
| CN109668165A (en) | Hot Secondary Air and smoke waste heat utilization system and thermal power generation unit | |
| CN201982147U (en) | Joint backheating thermodynamic system of power plant | |
| CN205332168U (en) | Waste heat comprehensive recovery utilization system of thermal power factory | |
| CN1140747C (en) | Absorbing heat pump heating equipment to recover fume afterheat of gas-burning steam-circulating heat and power plant | |
| CN209744401U (en) | Waste incineration flue gas waste heat utilization system based on absorption heat pump | |
| CN209324451U (en) | A kind of circulation electric generating apparatus using steam turbine | |
| CN214307058U (en) | High-efficient supercritical carbon dioxide boiler with two working mediums | |
| CN205578051U (en) | Take generating function's heating boiler system | |
| CN209495348U (en) | Hot Secondary Air and smoke waste heat utilization system and thermal power generation unit | |
| CN104373310B (en) | Solar energy and fuel complementary power generation system | |
| CN209485081U (en) | A kind of waste heat recycling utilization system | |
| CN209431391U (en) | A kind of boiler system with steam soot blowing waste-heat recovery device | |
| CN112696656A (en) | High-efficient supercritical carbon dioxide boiler with two working mediums | |
| CN206514282U (en) | Drive small machine cold end waste heat comprehensive utilization system in a kind of thermal power plant blower fan vapour Electricity Federation | |
| CN219995321U (en) | RTO is from deoxidization exhaust-heat boiler structure | |
| CN205607171U (en) | To super pressure -high temperature waste heat power generation system in low temperature flue gas adopts | |
| CN215112700U (en) | System for recovering chimney exhaust heat to improve power generation efficiency of waste incineration plant | |
| CN218469114U (en) | Device for heating medium-temperature SCR inlet flue gas by main steam | |
| CN212511092U (en) | Energy-saving consumption-reducing boiler tail smoke waste heat recycling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |