CN111076318A - Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization and working method thereof - Google Patents
Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization and working method thereof Download PDFInfo
- Publication number
- CN111076318A CN111076318A CN201911416519.7A CN201911416519A CN111076318A CN 111076318 A CN111076318 A CN 111076318A CN 201911416519 A CN201911416519 A CN 201911416519A CN 111076318 A CN111076318 A CN 111076318A
- Authority
- CN
- China
- Prior art keywords
- libr
- dehumidification
- air
- dehumidifying
- type liquid
- 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.)
- Pending
Links
- 238000007791 dehumidification Methods 0.000 title claims abstract description 61
- 238000005057 refrigeration Methods 0.000 title claims abstract description 32
- 239000002918 waste heat Substances 0.000 title claims abstract description 25
- 238000004378 air conditioning Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 170
- 239000012528 membrane Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 239000003507 refrigerant Substances 0.000 claims abstract description 27
- 238000011084 recovery Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 5
- 239000006096 absorbing agent Substances 0.000 claims description 25
- 239000000498 cooling water Substances 0.000 claims description 16
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000003303 reheating Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0014—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using absorption or desorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1429—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Gases (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention discloses a refrigeration and dehumidification integrated air conditioning system based on waste heat utilization and a working method thereof. The LiBr refrigeration unit comprises an air heat recovery heat exchanger, a membrane type liquid dehumidifying component, a radiator, a dry air cooling coil, a humidifier and a LiBr refrigeration unit, and can improve the supply and return water temperature of refrigerant water of the LiBr refrigeration unit and improve the energy efficiency level of the LiBr refrigeration unit; the dehumidification solution is regenerated by a generator of the LiBr refrigerating unit, so that the equipment investment and the system operation and maintenance cost are reduced; the reheating process after cooling of the traditional refrigeration dehumidification technology is cancelled, and the energy consumption level of an air conditioning system is greatly reduced; the invention is popularized and used in the south of China with high temperature and humidity, and has huge energy-saving potential and the function of balancing the peak load of a power grid.
Description
Technical Field
The invention relates to a refrigeration and dehumidification integrated air conditioning system, which mainly utilizes industrial low-grade waste heat to drive a LiBr refrigerating unit, and simultaneously uses a membrane type liquid dehumidification technology to carry out integrated refrigeration and dehumidification on air, belonging to the technical field of refrigeration and dehumidification air conditioners.
Background
The refrigeration dehumidification is the most widely used dehumidification technology at present, and the refrigeration dehumidification condenses water in air by cooling, heats the air to a comfortable temperature and sends the air to a room. The freezing dehumidification method needs cooling and then heating, and can not realize independent control of temperature and humidity, so that the energy consumption of the traditional refrigeration and dehumidification process is extremely high. Therefore, the LiBr refrigerating unit and membrane type liquid dehumidification integrated technology can not only utilize industrial low-grade waste heat to prepare chilled water and realize regeneration of dehumidification solution, but also prevent air from carrying the dehumidification solution to corrode indoor facilities and harm human health, and is an efficient, energy-saving and safe refrigeration and dehumidification integrated air conditioning system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a refrigeration and dehumidification integrated air conditioning system based on waste heat utilization. The invention dehumidifies before air cooling, eliminates latent heat load in air, reduces cooling air load, and cooled air does not need reheating treatment, so that the water supply and return temperature of LiBr refrigerating unit can be increased, the energy efficiency level of refrigerating unit can be improved, and energy saving and consumption reduction of refrigerating system can be realized. According to the invention, the dehumidification solution and the circulating working medium of the refrigerating unit are LiBr solution, and the dehumidification system can realize the regeneration of the dehumidification solution by using a generator of the LiBr refrigerating unit without a single regeneration device, so that the initial investment of the system can be saved, and the running economy of the refrigeration and dehumidification system can be improved.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a refrigeration and dehumidification integration air conditioning system based on waste heat utilization which characterized in that: the system comprises an air heat recovery heat exchanger, a membrane type liquid dehumidifying component, a radiator, a dry air cooling coil, a humidifier and a LiBr refrigerating unit; the air heat recovery heat exchanger is connected with the membrane type liquid dehumidifying assembly, the membrane type liquid dehumidifying assembly is respectively connected with the LiBr refrigerating unit and the dry air cooling coil, the LiBr refrigerating unit is respectively connected with the radiator and the dry air cooling coil, the radiator is connected with the membrane type liquid dehumidifying assembly, the dry air cooling coil is connected with the humidifier, the humidifier is connected indoors, and the indoor space is connected with the air heat recovery heat exchanger;
the LiBr refrigerating unit comprises a condenser, a generator, an absorber and an evaporator; the condenser and the generator are respectively connected with the evaporator and the absorber, and the evaporator and the absorber are arranged in the same cavity; the generator is provided with a dehumidifying LiBr solution inlet, a driving waste heat inlet and a driving waste heat outlet, a dilute LiBr solution pipeline is connected between the absorber and a dehumidifying LiBr solution inlet of the generator, the membrane type liquid dehumidifying component is communicated with a dehumidifying LiBr solution inlet, a cooling water pipeline is connected between the absorber and the condenser, the absorber is provided with a cooling water inlet, the condenser is provided with a cooling water outlet, the evaporator is provided with a refrigerant water inlet and a refrigerant water outlet, the refrigerant water inlet and the refrigerant water outlet are both communicated with the radiator and the dry air cooling coil, used for reducing the temperature in the radiator and the dry air cooling coil, a pipeline connecting the generator and the absorber is provided with a dehumidifying LiBr solution outlet, and the dehumidifying LiBr solution outlet is communicated to the radiator, and a condensed water outflow port is arranged on a pipeline for connecting the condenser and the evaporator.
Further, the air heat recovery heat exchanger is a fixed total heat exchanger, and recovers the exhaust air energy in the room and transfers the energy to the fresh air side; the air heat recovery heat exchanger adopts a plate-fin structure, and two air flows of fresh air and exhaust air flow in a cross mode; the partition plate of the air heat recovery heat exchanger is made of a processed material with good heat transfer and moisture permeability characteristics.
Further, the membrane type liquid dehumidifying component enables water vapor on the air side to pass through the porous membrane in a single direction to enter the dehumidifying solution, and prevents the dehumidifying solution from reversely permeating the porous membrane; the dehumidification solution of the membrane type liquid dehumidification component and the refrigeration working medium of the LiBr refrigeration unit are LiBr solutions; the porous membrane in the membrane type liquid dehumidifying component adopts a multilayer flat plate type selective permeation membrane.
Further, the LiBr refrigerating unit is used for regenerating a dehumidifying solution of the membrane type liquid dehumidifying component and providing refrigerant water for the radiator and the dry air cooling coil; a flow control valve is arranged at a condensed water outlet arranged in the LiBr refrigerating unit, so that the flow of the condensed water outlet can be controlled according to the mass flow of air in front of and behind the membrane type liquid dehumidifying component, and the concentration of a refrigerating working medium in the LiBr refrigerating unit is kept in dynamic balance; the LiBr refrigerating unit can use various forms of waste heat sources (solar energy, flue gas, steam, hot water and the like) as driving heat sources to prepare refrigerant water, and particularly can save the electric energy consumption of the traditional refrigeration and dehumidification air conditioner and balance the peak power load of a power grid in high-temperature and humid areas in south China.
The working method of the refrigeration and dehumidification integrated air conditioning system based on waste heat utilization is characterized in that: the process is as follows: fresh air is subjected to air heat recovery and heat exchange to recover energy in indoor exhaust air, then enters a membrane type liquid dehumidifying assembly to be dehumidified, and the dehumidified air enters a dry air cooling coil to be cooled and then is sent to the indoor through a humidifier to adjust air humidity; and the dehumidification solution enters a generator of the LiBr refrigerating unit for regeneration, then is sent to a radiator for cooling, and then is sent to the membrane type liquid dehumidification assembly for continuously dehumidifying air.
Furthermore, a dehumidifying solution for absorbing water vapor in air is sent to a generator in the LiBr refrigerating unit through a dehumidifying LiBr solution inlet for heating and regeneration, a part of LiBr concentrated solution is led out from a pipeline of the generator and enters an absorber and enters a radiator for cooling through a dehumidifying LiBr solution outlet, cooling water of the radiator comes from refrigerant water of the LiBr refrigerating unit, dehumidifying performance of the membrane type liquid dehumidifying component is improved by cooling the dehumidifying solution, and refrigerant water of the dry air cooling coil also comes from the LiBr refrigerating unit.
Compared with the prior art, the invention has the following advantages and effects: the supply and return water temperature of the refrigerant water of the LiBr refrigerating unit is improved, and the energy efficiency level of the refrigerating unit is further improved; the liquid desiccant realizes regeneration of the dehumidification solution through a generator of the LiBr refrigerating unit, so that equipment investment and system operation and maintenance cost are reduced; the independent control of temperature and humidity is realized, and compared with the traditional refrigeration dehumidification technology, the high energy consumption process of reheating after cooling is cancelled; the dry air cooling coil is kept dry, so that the breeding of microorganisms such as mold and the like and the pollution to the indoor environment can be reduced; renewable energy sources or industrial waste heat are fully utilized to drive and realize integrated control of refrigeration and dehumidification; the power consumption of high-temperature and humid areas in summer is reduced, and the peak load of a power grid is balanced.
Drawings
Fig. 1 is a schematic system structure according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a LiBr refrigerating unit in the embodiment of the invention.
In the figure: the system comprises a LiBr refrigerating unit 1, an air heat recovery heat exchanger 2, a membrane type liquid dehumidifying component 3, a radiator 4, a dry air cooling coil 5, a humidifier 6, a room 7, a cooling water pipeline 11, a cooling water outlet 12, a condenser 13, a generator 14, a dehumidifying LiBr solution inlet 15, a driving waste heat inlet 16, a driving waste heat outlet 17, a dehumidifying LiBr solution outlet 18, a dilute LiBr solution pipeline 19, an absorber 20, a cooling water inlet 21, a refrigerant water inlet 22, a refrigerant water outlet 23, an evaporator 24 and a condensed water outflow 25.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Referring to fig. 1 to 2, in the embodiment, a refrigeration and dehumidification integrated air conditioning system based on waste heat utilization includes an air heat recovery heat exchanger 2, a membrane type liquid dehumidification assembly 3, a radiator 4, a dry air cooling coil 5, a humidifier 6 and a LiBr refrigeration unit 1; the air heat recovery heat exchanger 2 is connected with the membrane type liquid dehumidifying assembly 3, the membrane type liquid dehumidifying assembly 3 is respectively connected with the LiBr refrigerating unit 1 and the dry air cooling coil 5, the LiBr refrigerating unit 1 is respectively connected with the radiator 4 and the dry air cooling coil 5, the radiator 4 is connected with the membrane type liquid dehumidifying assembly 3, the dry air cooling coil 5 is connected with the humidifier 6, the humidifier 6 is connected to the indoor 7, and the indoor 7 is connected with the air heat recovery heat exchanger 2;
the LiBr refrigerating unit 1 comprises a condenser 13, a generator 14, an absorber 20 and an evaporator 24; the condenser 13 and the generator 14 are respectively connected with the evaporator 24 and the absorber 20, and the evaporator 24 and the absorber 20 are arranged in the same cavity; a dehumidifying LiBr solution inlet 15, a driving waste heat inlet 16 and a driving waste heat outlet 17 are arranged on the generator 14, a dilute LiBr solution pipeline 19 is connected between an absorber 20 and the dehumidifying LiBr solution inlet 15 of the generator 14, a membrane type liquid dehumidifying component 3 is communicated with the dehumidifying LiBr solution inlet 15, a cooling water pipeline 11 is connected between the absorber 20 and a condenser 13, a cooling water inlet 21 is arranged on the absorber 20, a cooling water outlet 12 is arranged on the condenser 13, a refrigerant water inlet 22 and a refrigerant water outlet 23 are arranged on an evaporator 24, the refrigerant water inlet 22 and the refrigerant water outlet 23 are both communicated with the radiator 4 and the dry air cooling coil 5, the dehumidifying LiBr solution outlet 18 is arranged on a pipeline connecting the generator 14 and the absorber 20, the dehumidifying LiBr solution outlet 18 is communicated to the radiator 4, and the condensing water outflow port 25 is arranged on a pipeline connecting the condenser 13 and the evaporator 24.
In this embodiment, the air heat recovery heat exchanger 2 is a fixed total heat exchanger, which can recover the exhaust air energy in the room 7 and transfer the energy to the fresh air side;
further, the air heat recovery heat exchanger 2 adopts a plate-fin structure, and two air flows of fresh air and exhaust air flow in a cross mode;
further, the partition plate of the air heat recovery heat exchanger 2 is made of a processed material having a good heat transfer and moisture permeability characteristic.
In the embodiment, the membrane type liquid dehumidifying component 3 realizes the dehumidification of air, and water vapor on the air side can enter the dehumidifying solution through the porous membrane in a one-way manner, so that the dehumidifying solution is prevented from reversely permeating the porous membrane; the non-contact liquid dehumidification technology solves the problem of air flow carrying of traditional direct contact liquid dehumidification;
further, the dehumidifying solution of the membrane type liquid dehumidifying component 3 and the refrigerating working medium of the LiBr refrigerating unit 1 are LiBr solutions;
further, the porous membrane in the membrane type liquid dehumidifying component 3 adopts a multi-layer flat plate type selective permeation membrane.
In the embodiment, the radiator 4 is used for reducing the temperature of the LiBr solution and improving the dehumidification performance of the LiBr solution in the membrane type liquid dehumidification assembly 3;
further, the cooling water of the radiator 4 is supplied from the refrigerant water pipe.
In this embodiment, the dry air cooling coil 5 is a water-air heat exchanger, water flows through the tube side, and air flows through the shell side;
further, the dry air cooling coil 5 only needs to cool the sensible heat load of air, and the dehumidification air can keep the heat exchange tube dry, so that the effective heat transfer capacity is increased, and the harm to human health caused by bacterial breeding is prevented.
In this embodiment, the humidifier 6 can adjust the air humidity through the existing monitoring and control system to meet the humidity requirements of different rooms 7.
Further, the LiBr refrigerating unit 1 regenerates the dehumidification solution of the membrane type liquid dehumidification assembly 3 and provides refrigerant water for the radiator 4 and the dry air cooling coil 5; an intelligent flow control valve is arranged at a condensed water outlet 25 arranged in the LiBr refrigerating unit 1, so that the flow of the condensed water outlet 25 can be controlled according to the mass flow of air in front of and behind the membrane type liquid dehumidifying component 3, and the concentration of a refrigerating working medium in the LiBr refrigerating unit 1 is kept in dynamic balance; the LiBr refrigerating unit 1 can use various forms of waste heat sources (solar energy, flue gas, steam, hot water and the like) as driving heat sources to prepare refrigerant water, and particularly in high-temperature and humid areas in the south of China, the LiBr refrigerating unit can save the electric energy consumption of traditional refrigerating and dehumidifying air conditioners and balance the peak power load of a power grid.
Specifically, the working method of the refrigeration and dehumidification integrated air conditioning system based on waste heat utilization is as follows: fresh air is subjected to air heat recovery and heat exchange 2 to recover energy in indoor 7 exhaust air, then enters a membrane type liquid dehumidifying component 3 to dehumidify air, and the dehumidified air enters a dry air cooling coil 5 to be cooled and cooled, then is subjected to air humidity adjustment through a humidifier 6 and is sent to the indoor 7; the dehumidification solution enters a generator 14 of the LiBr refrigerating unit 1 for regeneration, then is sent to a radiator 4 for cooling, and then is sent to a membrane type liquid dehumidification assembly 3 for continuously dehumidifying air.
Furthermore, a dehumidifying solution for absorbing water vapor in the air is sent to a generator 14 in the LiBr refrigerating unit 1 through a dehumidifying LiBr solution inlet 15 for heating and regeneration, a part of LiBr concentrated solution is led out from a pipeline of the generator 14 entering an absorber 20 and enters a radiator 4 through a dehumidifying LiBr solution outlet 18 for cooling, cooling water of the radiator 4 comes from refrigerant water of the LiBr refrigerating unit 1, the dehumidifying performance of the membrane type liquid dehumidifying component 3 is improved by cooling the dehumidifying solution, and the refrigerant water of the dry air cooling coil 5 also comes from the LiBr refrigerating unit 1.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a refrigeration and dehumidification integration air conditioning system based on waste heat utilization which characterized in that: the system comprises an air heat recovery heat exchanger (2), a membrane type liquid dehumidifying assembly (3), a radiator (4), a dry air cooling coil (5), a humidifier (6) and a LiBr refrigerating unit (1); the air heat recovery heat exchanger (2) is connected with the membrane type liquid dehumidifying assembly (3), the membrane type liquid dehumidifying assembly (3) is respectively connected with the LiBr refrigerating unit (1) and the dry air cooling coil (5), the LiBr refrigerating unit (1) is respectively connected with the radiator (4) and the dry air cooling coil (5), the radiator (4) is connected with the membrane type liquid dehumidifying assembly (3), the dry air cooling coil (5) is connected with the humidifier (6), the humidifier (6) is connected to the indoor unit (7), and the indoor unit (7) is connected with the air heat recovery heat exchanger (2);
the LiBr refrigerating unit (1) comprises a condenser (13), a generator (14), an absorber (20) and an evaporator (24); the condenser (13) and the generator (14) are respectively connected with the evaporator (24) and the absorber (20), and the evaporator (24) and the absorber (20) are arranged in the same cavity; the device is characterized in that a dehumidifying LiBr solution inlet (15), a driving waste heat inlet (16) and a driving waste heat outlet (17) are arranged on the generator (14), a dilute LiBr solution pipeline (19) is connected between the absorber (20) and the dehumidifying LiBr solution inlet (15) of the generator (14), the membrane type liquid dehumidifying component (3) is communicated with the dehumidifying LiBr solution inlet (15), a cooling water pipeline (11) is connected between the absorber (20) and the condenser (13), a cooling water inlet (21) is arranged on the absorber (20), a cooling water outlet (12) is arranged on the condenser (13), a refrigerant water inlet (22) and a refrigerant water outlet (23) are arranged on the evaporator (24), the refrigerant water inlet (22) and the refrigerant water outlet (23) are both communicated with the radiator (4) and the dry air cooling coil (5) and used for reducing the internal temperature of the radiator (4) and the dry air cooling coil (5), a dehumidifying LiBr solution outlet (18) is formed in a pipeline connecting the generator (14) and the absorber (20), the dehumidifying LiBr solution outlet (18) is communicated to the radiator (4), and a condensed water outflow port (25) is formed in a pipeline connecting the condenser (13) and the evaporator (24).
2. The integrated refrigeration and dehumidification air-conditioning system based on waste heat utilization of claim 1, wherein: the air heat recovery heat exchanger (2) is a fixed total heat exchanger and adopts a plate-fin structure.
3. The integrated refrigeration and dehumidification air-conditioning system based on waste heat utilization of claim 1, wherein: the dehumidifying solution of the membrane type liquid dehumidifying component (3) and the refrigerating working medium of the LiBr refrigerating unit (1) are LiBr solutions; the porous membrane in the membrane type liquid dehumidifying component (3) adopts a multi-layer flat plate type selective permeation membrane.
4. A method for operating a refrigeration and dehumidification integrated air conditioning system based on waste heat utilization according to any one of claims 1 to 3, wherein: the process is as follows: fresh air is subjected to energy recovery in indoor (7) exhaust air through the air heat recovery heat exchanger (2), then enters the membrane type liquid dehumidifying component (3) for air dehumidification, and the dehumidified air enters the dry air cooling coil (5) for cooling and then is subjected to air humidity adjustment through the humidifier (6) and is sent to the indoor (7); the dehumidification solution enters a generator (14) of the LiBr refrigerating unit (1) for regeneration, then is sent to a radiator (4) for cooling, and then is sent to a membrane type liquid dehumidification assembly (3) for continuous dehumidification of air.
5. The operation method of the refrigeration and dehumidification integrated air conditioning system based on waste heat utilization according to claim 4, wherein: a dehumidification solution for absorbing water vapor in air is sent to a generator (14) in a LiBr refrigerating unit (1) through a dehumidification LiBr solution inlet (15) for heating regeneration, a part of LiBr concentrated solution is led out from a pipeline through which the generator (14) enters an absorber (20) and enters a radiator (4) for cooling through a dehumidification LiBr solution outlet (18), cooling water of the radiator (4) comes from refrigerant water of the LiBr refrigerating unit (1), the dehumidification performance of a membrane type liquid dehumidification assembly (3) is improved by cooling the dehumidification solution, and the refrigerant water of a dry air cooling coil (5) also comes from the LiBr refrigerating unit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416519.7A CN111076318A (en) | 2019-12-31 | 2019-12-31 | Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416519.7A CN111076318A (en) | 2019-12-31 | 2019-12-31 | Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111076318A true CN111076318A (en) | 2020-04-28 |
Family
ID=70320937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911416519.7A Pending CN111076318A (en) | 2019-12-31 | 2019-12-31 | Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111076318A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001079333A (en) * | 1999-09-17 | 2001-03-27 | Denso Corp | Adsorption refrigeration machine |
| CN1710345A (en) * | 2005-06-10 | 2005-12-21 | 东南大学 | Radiation cold-supplying air-conditioner driven by solar energy and radiation cold-supply method |
| CN102128477A (en) * | 2011-04-20 | 2011-07-20 | 北京华创瑞风空调科技有限公司 | Solution-desiccant air handling unit |
| CN202947235U (en) * | 2012-11-28 | 2013-05-22 | 河南科技大学东海硅产业节能技术研究院 | Absorption type cooling and solution dehumidification air conditioning system based on solar heat recovery |
| CN105627473A (en) * | 2016-02-23 | 2016-06-01 | 上海交通大学 | Solar thermally-driven independent temperature and humidity control air conditioning system |
| CN108444146A (en) * | 2018-05-23 | 2018-08-24 | 武汉理工大学 | A kind of marine air-conditioning system and refrigerating method based on lithium bromide-water |
| CN109539704A (en) * | 2018-11-15 | 2019-03-29 | 马素霞 | A kind of heat pump vacuum drier |
| CN211977070U (en) * | 2019-12-31 | 2020-11-20 | 华电电力科学研究院有限公司 | Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization |
-
2019
- 2019-12-31 CN CN201911416519.7A patent/CN111076318A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001079333A (en) * | 1999-09-17 | 2001-03-27 | Denso Corp | Adsorption refrigeration machine |
| CN1710345A (en) * | 2005-06-10 | 2005-12-21 | 东南大学 | Radiation cold-supplying air-conditioner driven by solar energy and radiation cold-supply method |
| CN102128477A (en) * | 2011-04-20 | 2011-07-20 | 北京华创瑞风空调科技有限公司 | Solution-desiccant air handling unit |
| CN202947235U (en) * | 2012-11-28 | 2013-05-22 | 河南科技大学东海硅产业节能技术研究院 | Absorption type cooling and solution dehumidification air conditioning system based on solar heat recovery |
| CN105627473A (en) * | 2016-02-23 | 2016-06-01 | 上海交通大学 | Solar thermally-driven independent temperature and humidity control air conditioning system |
| CN108444146A (en) * | 2018-05-23 | 2018-08-24 | 武汉理工大学 | A kind of marine air-conditioning system and refrigerating method based on lithium bromide-water |
| CN109539704A (en) * | 2018-11-15 | 2019-03-29 | 马素霞 | A kind of heat pump vacuum drier |
| CN211977070U (en) * | 2019-12-31 | 2020-11-20 | 华电电力科学研究院有限公司 | Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization |
Non-Patent Citations (2)
| Title |
|---|
| 刘政满: "《建筑设备运行与调试》", vol. 1, 31 March 2004, 中国电力出版社, pages: 235 * |
| 李全林: "《新能源与可再生能源》", vol. 1, 31 December 2008, 东南大学出版社, pages: 98 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105841272B (en) | A kind of humiture independence control air conditioner system of Driven by Solar Energy | |
| CN102261701B (en) | Multilevel heat recovery composite dehumidifying fresh air treatment machine | |
| CN100510558C (en) | Single runner two stage dehumidify air-conditioner driven by solar | |
| CN101701737B (en) | Heat-pump-driven solution dehumidifying air-conditioning device | |
| CN105352079A (en) | Independent temperature and humidity processing air conditioner system driven by low-level thermal energy | |
| CN201582927U (en) | Coupling counterflow-type solution dehumidification fresh air system of heat pump | |
| CN103868171A (en) | Direct-expansion solution-dehumidification central ventilation system of heat pump | |
| CN102506475A (en) | Heat pump system of heat humidity independent control driven by condensation waste heat and based on solid dehumidification | |
| CN105757836A (en) | Dehumidification heat exchanger based regeneration dehumidification heat pump system and running method therefor | |
| CN104456798A (en) | Heat pump driving solution humidity regulating and domestic hot water preparing system capable of realizing energy balance | |
| CN202452608U (en) | Solution-humidity-regulating all-air unit with total-heat recovery device | |
| CN101122406B (en) | Small central air conditioner set for separate processing for heat and humidity | |
| CN103591658A (en) | Solar building heating and air-conditioning system with heat and humidity independent control function and method for controlling solar building heating and air-conditioning system | |
| CN102954545B (en) | Solar dehumidifying air conditioner system with energy storage effect | |
| CN201944968U (en) | Radiant ceiling cooling system with hot and wet independent processing | |
| CN201255472Y (en) | Energy accumulation type air conditioning dehumidification system | |
| CN201016499Y (en) | Solar energy stepping utilization type air-conditioning system | |
| CN202648011U (en) | Heat pump regeneration rotary wheel type full-heat recovery moisture-conditioning temperature-control fresh air unit | |
| CN110749018A (en) | Single-machine two-stage compression middle air exhaust heat recovery fresh air processing device | |
| CN204513624U (en) | Heat pump driven dehumidification solution temperature control and domestic hot water preparation device | |
| CN211977070U (en) | Refrigeration and dehumidification integrated air conditioning system based on waste heat utilization | |
| CN205783463U (en) | A kind of absorbed moisture removing and the air conditioning system of absorption refrigeration coupling | |
| CN102767872B (en) | Air-conditioning system capable of recycling waste heat | |
| CN201277663Y (en) | Air conditioner system with humidity and temperature independently controlled | |
| CN202648010U (en) | Combined type heat pump low temperature regenerative rotary wheel dehumidification total heat recovery fresh air unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |