CN114087802B - Open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas - Google Patents
Open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas Download PDFInfo
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- CN114087802B CN114087802B CN202111270949.XA CN202111270949A CN114087802B CN 114087802 B CN114087802 B CN 114087802B CN 202111270949 A CN202111270949 A CN 202111270949A CN 114087802 B CN114087802 B CN 114087802B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/04—Heat pumps of the sorption type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The invention discloses an open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas, wherein a flue gas inlet of an absorption tower is communicated with a high-humidity flue gas exhaust pipeline, a flue gas outlet of the absorption tower is communicated with the atmospheric environment, a dilute solution outlet of the absorption tower is divided into two paths, the first path is communicated with a dilute solution inlet of a solution pool, and the second path is communicated with a dilute solution inlet of a regenerator through a hot side of a solution heat exchanger; a concentrated solution outlet of the regenerator is communicated with a concentrated solution inlet of the solution pool through a pipeline and the cold side of the solution heat exchanger; and a dilute solution outlet of the solution pool is communicated with a dilute solution inlet of the absorption tower after passing through the hot side of the precooler through a pipeline. According to the invention, the solution circulation of the absorber and the solution circulation of the regenerator are decoupled, and two independent solution circulations are independently arranged, so that the variable working condition performance of the open heat pump is greatly improved; the start-stop characteristic of the open heat pump is improved by the arranged solution pool. Compared with the original open heat pump, the open heat pump of the invention can flexibly adjust the working condition, and the absorber and the regenerator can simultaneously and efficiently operate.
Description
Technical Field
The invention belongs to the technical field of flue gas dust removal and waste heat recovery, and relates to an open heat pump system, in particular to an open heat pump system for cooperatively realizing water and waste heat recovery in high-humidity flue gas.
Background
The technology for recycling the waste heat of the industrial wet flue gas represented by wet desulphurization and smoke discharge of the dust-containing flue gas coal-fired boiler discharged in the industrial process is developed rapidly. The low-temperature waste heat of the wet flue gas is mainly latent heat, the proportion of the latent heat of the urban heat supply gas boiler discharging smoke at 50 ℃ in the waste heat is higher, the latent heat of the discharged smoke is about 10% of the low-level calorific value of the natural gas, and the utilization rate of the natural gas can be obviously improved if the latent heat is recycled.
The dividing wall type heat exchanger is a main method for recovering the flue gas waste heat at present, and the refrigerant water is utilized to directly exchange heat with the flue gas to recover the flue gas waste heat. The method is limited by the temperature of return water of a heating screen and the dew point temperature of the flue gas (the temperature at which steam in the flue gas begins to condense, dew point temperature for short), when the waste heat of the flue gas is recovered, the latent heat recovery ratio is low, and the flue gas is in a wet saturation state after the waste heat is recovered, so that the flue gas can be condensed in a flue in the smoke exhaust process.
In order to improve the latent heat recovery efficiency, a closed circulation absorption heat pump (short for closed heat pump) system is introduced into the flue gas waste heat recovery process. The flue gas and the refrigerant water exchange heat, the temperature of the flue gas is cooled to be below the dew point temperature, the steam in the flue gas is condensed to release latent heat, and the temperature of the refrigerant water is increased after the waste heat is recovered; at the closed heat pump evaporator, the warmed refrigerant water exchanges heat with the working medium water, the working medium water is evaporated and enters the absorber to be absorbed by the solution (absorbent), the solution concentration is reduced, the concentrated solution is changed into a dilute solution, the dilute solution is heated by an external heat source at the generator, the working medium water is evaporated and enters the condenser to exchange heat with the return water of the heat supply network, and the condensed working medium water is sent back to the evaporator. The refrigerant water generated by the closed heat pump has low temperature, and compared with a waste heat recovery method of a dividing wall type heat exchanger, the method can lower the temperature of the flue gas, has high latent heat recovery rate, and can supply heat to the outside after the recovered heat is heated by the closed heat pump.
The method is based on the condensation process to recover the latent heat of the flue gas and is limited by the dew point of the flue gas, so an open cycle absorption heat pump system (an open heat pump for short) for recovering the latent heat of the flue gas by utilizing the solution dehumidification principle is provided. As shown in fig. 1, the conventional open heat pump mainly includes an absorber 1, a regenerator 2, a condenser 4, a plurality of solution booster pumps (7-1, 7-2), a vacuum pump 5, a regulating valve 8, a liquid storage tank 6 and a solution heat exchanger 3-1. The sensible heat and partial latent heat of the flue gas are used for regenerating an absorbent (solution), the flue gas G firstly enters a regenerator 2 and then enters an absorber 1, and finally enters the atmosphere; the absorber 1 and the regenerator 2 are communicated with a dilute solution pipeline through a regulating valve 8, and are communicated with a concentrated solution pipeline through a liquid storage tank 6 and solution booster pumps (7-1, 7-2); steam generated by the regenerator 2 enters a condenser 4 for cooling, is condensed into liquid water and then is pumped out by a water pump 9, and non-condensable gas is pumped out by a vacuum pump 5; the solution heat exchanger 3-1 may be arranged between the concentrated solution conduit and the dilute solution conduit; the recovered heat can be drawn off by a heat exchanger after the adiabatic absorber 1 or by an internal heat exchanger of the non-adiabatic absorber. The flue gas G firstly enters the regenerator 2 to heat the dilute solution, the cooled flue gas G is directly contacted with the concentrated solution in the absorber 1, the steam in the flue gas G is absorbed by the solution, the latent heat is released by the steam, the solution temperature rises, the concentration drops, and the latent heat is recovered when the humidity of the flue gas G drops; the dilute solution at the outlet of the absorber 1 is sent back to the regenerator 2.
Compared with the prior art, the closed heat pump for recovering the latent heat of the flue gas is limited by the dew point temperature, the flue gas temperature is required to be reduced to be lower than the dew point temperature, the recovered heat temperature is low, the sensible heat of a high-temperature part is not effectively utilized, the cascade utilization of the flue gas heat is not realized, if the refrigerant water is adopted to recover the flue gas waste heat, an intermediate heat exchange link is added, the recovered heat temperature can be further reduced, and the closed heat pump needs to be driven by an external heat source (such as gas and steam) to influence the comprehensive efficiency of the system. In addition, after the closed heat pump is used for recovering the waste heat of the flue gas, the temperature of the flue gas is low and the flue gas is in a wet saturation state, so that the thermal power emission of the flue gas is influenced, and the flue gas is condensed at a flue and a chimney opening.
In the current open heat pump flow, the concentrated solution that comes from the regenerator directly sends into the absorber after cooling, and the absorber import solution flow is the same with regenerator export solution flow, is limited to this, and open heat pump becomes operating mode regulation performance relatively poor, and it is better that absorber and regenerator are difficult to reach the performance simultaneously: when external parameters are increased (the moisture content of the flue gas is increased), the liquid-gas ratio of the inlet of the absorber (the ratio of the mass flow of the solution at the inlet of the absorber to the mass flow of the dry-based flue gas at the inlet of the absorber) is increased to ensure the flue gas treatment effect (the emission humidity is unchanged), the solution flow of the regenerator is increased, the mass transfer resistance of a liquid film in the regenerator is increased (the thickness of the liquid film is increased), and the regeneration performance is reduced. Increasing the liquid-to-gas ratio can increase absorber performance, but decrease regenerator performance; reducing the solution flow (which is equivalent to reducing the absorber liquid-to-gas ratio) can improve regenerator performance, but reduce absorber performance. The absorber is often high in liquid-gas ratio at the inlet, the solution flow is large, the consumption of a driving heat source (high-grade heat source) of the regenerator is high due to the large solution flow of the regenerator, the high-grade heat is mainly used for sensible heat temperature rise of the solution, the evaporation proportion of the solution is low, and the COP (coefficient of performance) of the open heat pump is low; the greater the regenerator solution flow, the smaller the inlet solution concentration change, and the greater the electrical work consumed by the solution to evaporate the same amount of steam (solution pump).
The invention decouples the solution circulation of the absorber and the regenerator aiming at the problems, and two independent solution circulations are independently arranged, thereby greatly improving the variable working condition performance of the open heat pump; the start-stop characteristic of the open heat pump is improved by the arranged solution pool.
Disclosure of Invention
Aiming at the defects and shortcomings of the existing open heat pump system, the invention aims to provide a system for simultaneously recovering water and latent heat in high-humidity flue gas based on an open heat pump, wherein the performance of the open heat pump under variable working conditions is greatly improved by decoupling the solution circulation of an absorber and a regenerator and independently setting two independent solution circulations; the start-stop characteristic of the open heat pump is improved by the arranged solution pool. In addition, compared with a closed cycle heat pump, the open heat pump saves an evaporator, and directly introduces low-temperature and low-pressure waste heat smoke of other devices to reduce a heat transfer link; the system structure is simplified, and the technological parameters of the heat pump are improved; can directly recover water from the flue gas without being limited by dew point. Compared with the original open heat pump, the open heat pump of the invention can flexibly adjust the working condition, and the absorber and the regenerator can simultaneously and efficiently operate.
In order to achieve the aim, the invention designs an open heat pump system with absorption and regeneration solution circulation decoupling, which has the following specific technical scheme:
an open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas comprises an absorption tower, a regenerator, a precooler, a solution heat exchanger and a solution pool, and is characterized in that,
the bottom of the absorption tower is provided with a flue gas inlet and a dilute solution outlet, the top is provided with a flue gas outlet and a concentrated solution inlet,
a heater is arranged in the regenerator, the bottom of the regenerator is provided with a concentrated solution outlet, the top of the regenerator is provided with a dilute solution inlet and a steam outlet,
the solution pool is provided with a dilute solution inlet, a dilute solution outlet and a concentrated solution inlet,
wherein, the first and the second end of the pipe are connected with each other,
the flue gas inlet of the absorption tower is communicated with a high-humidity flue gas exhaust pipeline, the flue gas outlet is communicated with the atmospheric environment, the dilute solution outlet of the absorption tower is divided into two paths, the first path is communicated with the dilute solution inlet of the solution tank, and the second path is communicated with the dilute solution inlet of the regenerator through the hot side of the solution heat exchanger;
the concentrated solution outlet of the regenerator is communicated with the concentrated solution inlet of the solution pool through a pipeline and the cold side of the solution heat exchanger;
and a dilute solution outlet of the solution pool is communicated with a dilute solution inlet of the absorption tower after passing through a precooler through a pipeline.
Preferably, a first solution pump is arranged on a dilute solution outlet pipeline of the solution pool M, and a dilute solution outlet of the solution pool is communicated with a dilute solution inlet of the absorption tower after sequentially passing through the first solution pump and the hot side of the precooler through pipelines.
Preferably, a second solution pump is arranged on a second path of the dilute solution outlet of the absorption tower, and the second path is communicated with the dilute solution inlet of the regenerator after sequentially passing through the second solution pump and the hot side of the solution heat exchanger.
Preferably, the heater within the regenerator is in communication with an external heat source.
Preferably, the steam outlet at the top of the regenerator is discharged after passing through a condenser through a pipeline.
Further, the cold sides of the condenser and the precooler are communicated with an external cold source.
Preferably, the first pipeline and the second pipeline of the dilute solution outlet of the absorption tower are respectively provided with a flow regulating valve for regulating and controlling the flow of the dilute solution in the corresponding pipelines.
When the open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas works, the working process is as follows: a) The flue gas enters an absorption tower, the solution in the absorption tower absorbs water in the flue gas to become a dilute solution (latent heat is released when the water is absorbed), and the flue gas becomes unsaturated flue gas and is discharged; b) The dilute solution is divided into two streams, one stream returns to the solution pool to be mixed with the high-temperature concentrated solution at the outlet of the solution heat exchanger, and the other stream enters a regenerator after heat exchange through the solution heat exchanger; c) The dilute solution in the regenerator is heated and evaporated by a heat source to become a high-temperature concentrated solution, and the high-temperature concentrated solution returns to the solution pool after heat exchange by the solution heat exchanger; d) The high-temperature solution mixed in the solution pool enters a precooler, is cooled by a cold source and then enters an absorption tower; e) The vapor generated by the solution evaporation is cooled into liquid state in the condenser by the cold source for recovery.
Compared with the prior art, the invention has the beneficial effects that:
(1) realize absorber solution circulation and regenerator solution circulation's mutual independent operation, absorber import solution flow and regenerator export solution flow decoupling each other, open heat pump becomes operating mode regulation performance and improves: when external parameters are increased (the moisture content of flue gas is increased), the liquid-gas ratio at the inlet of the absorber can be independently increased to ensure the absorption effect, the solution flow of the regenerator does not need to be increased, the performance and the regeneration load of the regenerator are not influenced, and the regenerator can still operate under better performance according to design parameters.
(2) The solution circulation of the absorber and the solution circulation of the regenerator are decoupled, the absorber operates at a high liquid-gas ratio at the inlet, the regenerator operates at a low inlet solution flow rate, the consumption of a driving heat source (a high-grade heat source) of the regenerator is low, the proportion of high-grade heat used for sensible heat temperature rise of the solution is reduced, and the open heat pump has a high COP (coefficient of performance).
(3) The solution circulation of the absorber and the solution circulation of the regenerator are decoupled, the solution flow of the regenerator is obviously lower than the solution amount at the inlet of the absorber, the solution concentration change at the inlet and the outlet of the regenerator is improved, and the electric work consumed by the solution evaporation with the same steam amount is obviously reduced (solution pump).
Drawings
Fig. 1 is a schematic diagram of a conventional open cycle absorption heat pump system.
FIG. 2 is a schematic diagram of an open heat pump system for simultaneously recovering water and latent heat in high humidity flue gas according to the present invention.
Description of reference numerals:
the system comprises an absorber 1, a regenerator 2, a solution heat exchanger 3-1, a solution heater 3-2, a condenser 4, a vacuum pump 5, a liquid storage tank 6, a solution pump A7-1, a solution pump B7-2, a throttle valve 8, a water pump 9, an external auxiliary heat source Q and flue gas G, wherein the dotted line boxes show that the components are optional; an A-absorption tower, an M-solution pool, an SC-precooler, a C-condenser, a G-regenerator, an SH-solution heat exchanger and a P1 and P2-solution pump.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments, which are part of the present invention, are not all embodiments, and are intended to be illustrative of the present invention and should not be construed as limiting the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
As shown in fig. 2, the open heat pump system for simultaneously recovering water and latent heat from high humidity flue gas of the present invention includes an absorption tower a, a regenerator G, a precooler SC, a solution heat exchanger SH, a condenser C, a solution tank M, and solution pumps P1 and P2. The bottom of absorption tower A is equipped with the gas inlet and is equipped with exhanst gas outlet and thick solution import with weak solution export, top, is equipped with the heater in the regenerator G, and its bottom is equipped with thick solution export, the top is equipped with weak solution import and steam outlet, solution pond M is equipped with weak solution import, weak solution export, thick solution import. The absorption tower A is provided with a flue gas inlet communicated with a high-humidity flue gas exhaust pipeline, a flue gas outlet communicated with the atmospheric environment, a dilute solution outlet divided into two paths, a first path communicated with a dilute solution inlet of a solution tank M, and a second path communicated with a dilute solution inlet of a regenerator G after passing through a solution pump P2 and the hot side of a solution heat exchanger SH in sequence; the concentrated solution outlet of the regenerator G is communicated with the concentrated solution inlet of the solution tank M through a pipeline and the cold side of the solution heat exchanger SH; and a dilute solution outlet of the solution pool M is communicated with a dilute solution inlet of the absorption tower A through a pipeline after sequentially passing through the solution pump P1 and the hot side of the precooler SC.
The working process of the open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas comprises the following steps: a) The flue gas enters an absorption tower A, the solution in the absorption tower A absorbs the water in the flue gas to become a dilute solution (latent heat is released when the water is absorbed), and the flue gas becomes unsaturated flue gas and is discharged; b) The dilute solution is divided into two streams, one stream returns to the solution pool M to be mixed with the high-temperature concentrated solution at the outlet of the solution heat exchanger SH, and the other stream enters a regenerator G after passing through the solution heat exchanger SH for heat exchange; c) The dilute solution in the regenerator G is heated and evaporated by a heat source to become a high-temperature concentrated solution, and the high-temperature concentrated solution returns to the solution pool M after heat exchange through a solution heat exchanger SH; d) The mixed high-temperature solution in the solution pool M enters a precooler SC, and enters an absorption tower A after being cooled by a cold source; e) The vapor generated by the solution evaporation is cooled into liquid state in the condenser C by the cold source for recovery.
In the open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas, the solution circulation of the absorber A and the solution circulation of the regenerator G are mutually independently operated, the inlet solution flow of the absorber A and the outlet solution flow of the regenerator G are mutually decoupled, and the variable working condition regulation performance of the open heat pump is improved: when external parameters are increased (the moisture content of flue gas is increased), the liquid-gas ratio of the inlet of the absorber A can be independently increased to ensure the absorption effect, the solution flow of the regenerator G does not need to be increased along with the increase of the liquid-gas ratio, the performance and the regeneration load of the regenerator G are not influenced, and the regenerator G can still operate under a better performance according to design parameters. The solution circulation of the absorber A is decoupled with the solution circulation of the regenerator G, the inlet of the absorber A runs at a high liquid-gas ratio, the inlet of the regenerator G runs at a low solution flow rate, the regenerator G drives a heat source (a high-grade heat source) to consume low, the proportion of high-grade heat used for sensible heat temperature rise of the solution is reduced, and the open heat pump COP (coefficient of performance) is high. The solution circulation of the absorber A and the solution circulation of the regenerator G are decoupled, the solution flow of the regenerator G is obviously lower than the inlet solution amount of the absorber A, the concentration change of the inlet and outlet solution of the regenerator G is improved, and the electric work consumed by evaporating the solution with the same steam amount is obviously reduced (solution pump).
The object of the present invention is fully effectively achieved by the above embodiments. Those skilled in the art will appreciate that the present invention includes, but is not limited to, what is described in the accompanying drawings and the foregoing detailed description. While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications within the spirit and scope of the appended claims.
Claims (7)
1. An open heat pump system for simultaneously recovering water and latent heat in high-humidity flue gas comprises an absorption tower, a regenerator, a precooler, a solution heat exchanger and a solution pool, and is characterized in that,
the bottom of the absorption tower is provided with a flue gas inlet and a dilute solution outlet, the top is provided with a flue gas outlet and a concentrated solution inlet,
a heater is arranged in the regenerator, the bottom of the regenerator is provided with a concentrated solution outlet, the top of the regenerator is provided with a dilute solution inlet and a steam outlet,
the solution pool is provided with a dilute solution inlet, a dilute solution outlet and a concentrated solution inlet,
wherein the content of the first and second substances,
the flue gas inlet of the absorption tower is communicated with a high-humidity flue gas exhaust pipeline, the flue gas outlet is communicated with the atmospheric environment, the dilute solution outlet of the absorption tower is divided into two paths, the first path is communicated with the dilute solution inlet of the solution tank, and the second path is communicated with the dilute solution inlet of the regenerator through the hot side of the solution heat exchanger;
the concentrated solution outlet of the regenerator is communicated with the concentrated solution inlet of the solution pool through a pipeline and the cold side of the solution heat exchanger;
and a dilute solution outlet of the solution pool is communicated with a dilute solution inlet of the absorption tower after passing through a precooler through a pipeline.
2. The open heat pump system according to claim 1, wherein a first solution pump is arranged on a dilute solution outlet pipeline of the solution tank, and a dilute solution outlet of the solution tank is communicated with the dilute solution inlet of the absorption tower after passing through the first solution pump and a hot side of the precooler in sequence through pipelines.
3. The open heat pump system of claim 1, wherein a second solution pump is provided on a second path of the dilute solution outlet of the absorption tower, and the second path is communicated with the dilute solution inlet of the regenerator after passing through the second solution pump and the hot side of the solution heat exchanger in sequence.
4. The open heat pump system of claim 1, wherein the heater in the regenerator is in communication with an external heat source.
5. The open heat pump system of claim 1, wherein the vapor outlet at the top of the regenerator is piped through a condenser and then discharged.
6. The open heat pump system of claim 5, wherein the condenser, the cold side of the precooler, are both in communication with an external heat sink.
7. The open heat pump system according to claim 1, wherein the first pipeline and the second pipeline of the dilute solution outlet of the absorption tower are respectively provided with a flow regulating valve for regulating and controlling the flow of the dilute solution in the corresponding pipelines.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1287548A (en) * | 1970-03-28 | 1972-08-31 | Bayer Ag | A process for purifying waste gases from the production of ammonium nitrite and re-using them for the production of ammonium carbonate |
| EP0561730A1 (en) * | 1992-03-11 | 1993-09-22 | Mitsubishi Jukogyo Kabushiki Kaisha | Flue gas desulfurization process |
| CN104075388A (en) * | 2014-07-01 | 2014-10-01 | 清华大学 | Device for recovering waste heat and water in smoke |
| JP2015144981A (en) * | 2014-01-31 | 2015-08-13 | 三菱重工業株式会社 | Gas absorption-regeneration system and operation method therefor |
| CN207019338U (en) * | 2017-04-27 | 2018-02-16 | 昊姆（上海）节能科技有限公司 | The wet waste gas residual heat high efficiente callback of heat and the economic benefits and social benefits open absorption heat pump device utilized |
| CN108426264A (en) * | 2018-05-14 | 2018-08-21 | 中国华电科工集团有限公司 | The device of coloured plume is eliminated in a kind of Mist heat recovering collaboration dedusting |
-
2021
- 2021-10-29 CN CN202111270949.XA patent/CN114087802B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1287548A (en) * | 1970-03-28 | 1972-08-31 | Bayer Ag | A process for purifying waste gases from the production of ammonium nitrite and re-using them for the production of ammonium carbonate |
| EP0561730A1 (en) * | 1992-03-11 | 1993-09-22 | Mitsubishi Jukogyo Kabushiki Kaisha | Flue gas desulfurization process |
| JP2015144981A (en) * | 2014-01-31 | 2015-08-13 | 三菱重工業株式会社 | Gas absorption-regeneration system and operation method therefor |
| CN104075388A (en) * | 2014-07-01 | 2014-10-01 | 清华大学 | Device for recovering waste heat and water in smoke |
| CN207019338U (en) * | 2017-04-27 | 2018-02-16 | 昊姆（上海）节能科技有限公司 | The wet waste gas residual heat high efficiente callback of heat and the economic benefits and social benefits open absorption heat pump device utilized |
| CN108426264A (en) * | 2018-05-14 | 2018-08-21 | 中国华电科工集团有限公司 | The device of coloured plume is eliminated in a kind of Mist heat recovering collaboration dedusting |
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| CN114087802A (en) | 2022-02-25 |
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