CN110131820B - Air conditioning equipment - Google Patents
Air conditioning equipment Download PDFInfo
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- CN110131820B CN110131820B CN201910404120.0A CN201910404120A CN110131820B CN 110131820 B CN110131820 B CN 110131820B CN 201910404120 A CN201910404120 A CN 201910404120A CN 110131820 B CN110131820 B CN 110131820B
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- air conditioning
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 37
- 239000000498 cooling water Substances 0.000 claims abstract description 64
- 238000005057 refrigeration Methods 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 239000002918 waste heat Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 91
- 239000003507 refrigerant Substances 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 25
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 16
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 description 15
- 238000001816 cooling Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- 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
- 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
- F24F5/001—Compression cycle type
-
- 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
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)
- Other Air-Conditioning Systems (AREA)
Abstract
The application discloses air conditioning equipment, which comprises a first unit and a second unit; wherein the first unit comprises a unit adopting compression refrigeration; the first unit comprises a condenser; the condenser of the first unit comprises a water-cooled condenser, and the water-cooled condenser comprises a first waterway; the second unit comprises a unit adopting absorption refrigeration; the second unit comprises an evaporator and a generator, and a second waterway passing through the evaporator and the generator of the second unit; the first end of the second waterway is connected with the first end of the first waterway, and the second end of the second waterway is connected with the second end of the first waterway to form a circulating waterway; the first unit is used for performing air conditioning through compression refrigeration, wherein cooling water in the first waterway circularly dissipates heat through the second waterway; the second unit is used for absorbing the waste heat emitted by the cooling water passing through the second waterway through absorption refrigeration to perform air conditioning.
Description
Technical Field
The application relates to the technical field of air conditioning, in particular to air conditioning equipment.
Background
In the related art, the commonly used air conditioning apparatuses include a central air conditioner and the like. The unit of the air conditioning apparatus mainly includes a compressor, a condenser, an evaporator, and a throttle member. When the air conditioner is operated, the compressor absorbs the vapor of the refrigerant with lower pressure and higher temperature from the evaporator, compresses the vapor and discharges the vapor to the condenser, the vapor of the refrigerant is condensed into liquid with higher pressure and lower temperature by heat exchange with the water medium in the condenser, the liquid with lower pressure and lower temperature enters the evaporator after being throttled and depressurized by the throttling part, the refrigerant is evaporated into vapor with lower pressure and higher temperature by heat exchange with the water medium in the evaporator, and then enters the compressor, thus realizing refrigerant circulation and refrigeration or heating to regulate air.
During the refrigerant circulation process: after the water medium in the evaporator exchanges heat with the refrigerant, low-temperature chilled water is formed and supplied to a user side, a fan coil is generally adopted as an indoor heat exchanger to convey the cold energy in the low-temperature chilled water to the indoor under the action of a fan, the water temperature of the chilled water after heat exchange of the indoor heat exchanger is increased, and then the chilled water returns to the evaporator to form chilled water circulation; the water medium in the condenser forms high-temperature cooling water after heat exchange with the refrigerant, then is directly conveyed to the heat dissipation water tower, the fan of the heat dissipation water tower sprays and cools the high-temperature cooling water, and the high-temperature cooling water directly exchanges heat with the atmosphere to emit heat to the atmosphere. In the scheme, the condenser is cooled by water cooling, the cooling water is used as a high-temperature heat working medium, and the heat of the cooling water is directly and completely dissipated in the atmosphere, so that the energy utilization rate is low.
Disclosure of Invention
The application aims to provide air conditioning equipment, which solves the problem that the heat of a condenser in the related art is directly and completely dissipated in the atmosphere through water cooling, and the energy utilization rate is low.
The application aims at realizing the following technical scheme:
an air conditioning apparatus comprising:
A first unit and a second unit;
Wherein the first unit comprises a unit adopting compression refrigeration; the first unit comprises a condenser; the condenser of the first unit comprises a water-cooled condenser, and the water-cooled condenser comprises a first waterway;
The second unit comprises a unit adopting absorption refrigeration; the second unit comprises an evaporator and a generator, and a second waterway passing through the evaporator and the generator of the second unit; the first end of the second waterway is connected with the first end of the first waterway, and the second end of the second waterway is connected with the second end of the first waterway to form a circulating waterway;
the first unit is used for performing air conditioning through compression refrigeration, wherein cooling water in the first waterway circularly dissipates heat through the second waterway;
The second unit is used for absorbing the waste heat emitted by the cooling water passing through the second waterway through absorption refrigeration to perform air conditioning.
Optionally, the first heat exchange device is arranged on the waterway between the second end of the second waterway and the second end of the first waterway;
the first end of the first heat exchange device is connected with the second end of the second waterway, and the second end of the first heat exchange device is connected with the second end of the first waterway and used for carrying out heat exchange on cooling water passing through the second waterway and then conveying the cooling water to the first waterway.
Optionally, the first heat exchange device includes: a first heat exchanger and a heat-dissipating water tower; the first end of the first heat exchanger is connected with the second end of the second waterway, the second end of the first heat exchanger is connected with the first end of the heat dissipation water tower, the third end of the first heat exchanger is connected with the second end of the first waterway, and the second end of the heat dissipation water tower is connected to the third end of the first heat exchanger to form a circulating heat exchange loop.
Optionally, the expansion tank is arranged on the waterway between the first end of the first waterway and the first end of the second waterway;
The expansion water tank is used for storing cooling water.
Optionally, the first unit further comprises at least one compressor, an evaporator, a gas-liquid separator and a second heat exchange device;
The first end of the evaporator of the first unit is connected with the first end of the gas-liquid separator;
the first end of the compressor is connected with the first end of the second heat exchange device through the expansion water tank, and is also connected with the first end of the condenser of the first unit, and the second end of the compressor is connected with the third end of the gas-liquid separator;
The second end of the second heat exchange device is connected with the second end of the gas-liquid separator;
the gas-liquid separator is used for separating gas from liquid of the refrigerant;
the compressor is used for compressing the steam of the refrigerant sucked from the evaporator of the first unit and discharging the steam of the compressed refrigerant to the condenser of the first unit; the device is also used for discharging the steam of the compressed refrigerant to the expansion water tank;
The expansion water tank is also used for heating the stored cooling water by utilizing the heat emitted by the steam of the refrigerant discharged by the compressor;
the second heat exchange device is used for exchanging heat of steam of the refrigerant passing through the expansion water tank and conveying the steam back to the compressor.
Optionally, the device further comprises a heating device arranged on the waterway between the expansion water tank and the first end of the second waterway;
The heating device is used for heating the passing cooling water.
Optionally, the device further comprises an expansion tank arranged on the waterway between the first heat exchange device and the second end of the first waterway;
and the expansion tank is used for throttling and controlling the cooling water.
Optionally, the expansion tank is further used for connecting a user water pipe to input cooling water.
Optionally, the device further comprises an electronic dirt remover arranged on a waterway between the expansion tank and the user water pipe.
Optionally, the first unit comprises an air conditioning unit, and/or the second unit comprises a lithium bromide unit.
The application adopts the technical scheme and has the following beneficial effects:
in the scheme, the air conditioner comprises two units based on different refrigeration technologies, wherein the main unit is a first unit, the first unit comprises a unit adopting compression refrigeration and generally comprises a compressor, a condenser, an evaporator and a throttling component, the condenser of the first unit is a water-cooled condenser, when the air conditioner operates, the compressor absorbs the vapor of a refrigerant with lower pressure and higher temperature from the evaporator of the first unit to compress and then discharge the vapor to the water-cooled condenser, the vapor of the refrigerant exchanges heat with cooling water in the water-cooled condenser to form liquid with higher pressure and lower temperature, the refrigerant becomes liquid with lower pressure and lower temperature after being throttled and depressurized by the throttling component, and then enters the evaporator, and the refrigerant exchanges heat with a water medium in the evaporator to evaporate into vapor with lower pressure and higher temperature, and then enters the compressor, so that the circulation is realized to regulate the air, and the operation of the compressor is controlled by consuming electric energy; in order to improve the utilization rate of energy, the scheme of the application is also provided with a second unit as an auxiliary unit, the second unit comprises a unit adopting absorption refrigeration, generally, the second unit comprises a generator, a condenser, an evaporator, an absorber and the like, when the device runs, as the second waterway and the first waterway of the first unit form a cooling water circulation loop, after the water solution absorbs the waste heat of the cooling water in the second waterway in the generator and heats, the water in the solution is continuously vaporized, the concentration of the water solution in the generator is continuously increased, the water vapor is taken as a refrigerant to enter the condenser, is cooled by the cooling water in the condenser and is condensed to form high-pressure low-temperature liquid water, when the water in the condenser enters the evaporator, the heat of the cooling water in the second waterway in the evaporator is absorbed, the waste heat emitted by the cooling water in the evaporator is rapidly expanded and vaporized, the water vapor enters the absorber, the concentration of the solution is gradually reduced, and the circulating pump is returned to the generator, so that the circulation is realized, the air is regulated, the cooling water in the first waterway is cooled by the absorber, and the heat of the cooling water in the evaporator is directly utilized to the second waterway, and the heat of the air is greatly consumed by the heat of the first waterway, and the heat is directly cooled by the water in the cooling process.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an air conditioning apparatus according to an embodiment of the present application.
Fig. 2 is a circuit configuration diagram in an air conditioning apparatus according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, based on the examples herein, which are within the scope of the application as defined by the claims, will be within the scope of the application as defined by the claims.
Examples
Referring to fig. 1, fig. 1 is a schematic structural view of an air conditioning apparatus according to an embodiment of the present application.
As shown in fig. 1, the present embodiment provides an air conditioning apparatus including:
A first unit 1 and a second unit 2;
Wherein the first unit 1 comprises a unit adopting compression refrigeration; the first unit 1 comprises a condenser 3; the condenser 3 of the first unit 1 comprises a water-cooled condenser comprising a first waterway 4;
The second unit 2 comprises a unit adopting absorption refrigeration; the second unit comprises an evaporator 5 and a generator 6, and a second waterway 7 passing through the evaporator 5 and the generator 6 of the second unit; the first end of the second waterway 7 is connected with the first end of the first waterway 4, and the second end of the second waterway 7 is connected with the second end of the first waterway 4 to form a circulating waterway;
The first unit 1 is used for performing air conditioning through compression refrigeration, wherein cooling water in the first water channel 4 is subjected to circulation heat dissipation through the second water channel 7;
the second unit 2 is configured to perform air conditioning by absorbing waste heat emitted from the cooling water passing through the second water path 7 through absorption refrigeration.
In the scheme of the application, the two units based on different refrigeration technologies are included, the main unit is a first unit, the first unit 1 comprises a unit adopting compression refrigeration and generally comprises a compressor 8, a condenser 3, an evaporator 9 and a throttling component 10, in the scheme, the condenser 3 of the first unit 1 is a water-cooled condenser, when in operation, the compressor 8 absorbs the vapor of a refrigerant with lower pressure and higher temperature from the evaporator 9 of the first unit 1 to compress and then discharge the vapor to the condenser, the vapor of the refrigerant exchanges heat with cooling water in the water-cooled condenser to form liquid with higher pressure and lower temperature, the refrigerant becomes liquid with lower pressure and lower temperature after being throttled and depressurized by the throttling component 10, the refrigerant exchanges heat with a water medium in the evaporator 9 to evaporate into vapor with lower pressure and higher temperature, and then enters the compressor 8, so that the circulation is realized, and in the process, the operation of the compressor needs to be controlled by consuming electric energy; in order to improve the utilization rate of energy, the scheme of the application is also provided with the second unit 2 as an auxiliary unit, the second unit 2 comprises a unit adopting absorption refrigeration, generally, the second unit 2 comprises a generator 6, a condenser 11, an evaporator 5, an absorber 12 and the like, when in operation, as the second waterway and the first waterway of the first unit form a cooling water circulation loop, after the water solution absorbs the waste heat of the cooling water in the second waterway 7 in the generator 6 and heats, the water in the solution is continuously vaporized, the concentration of the water solution in the generator 6 is continuously increased, the water vapor is taken as a refrigerant to enter the condenser 11, is cooled by the cooling water in the condenser and is condensed into high-pressure low-temperature liquid water, when the water in the condenser 11 enters the evaporator 5, the heat of the cooling water in the second waterway 7 in the evaporator 5 can be rapidly expanded and vaporized, a large amount of the water solution absorbs the waste heat emitted by the cooling water in the second waterway 7 in the vaporization process, the water solution in the absorber 12 is gradually reduced, the concentration of the water solution in the absorber 12 is gradually reduced, the water vapor is returned to the evaporator 6, and the water vapor is cooled by the water in the first unit 1, and the water is directly cooled by the water in the air generator 1, and the water is cooled by the water in the air, and the air is directly cooled by the air in the unit, and the air is greatly improved compared with the efficiency.
In addition, in this embodiment, the first water channel 4 and the second water channel 7 form a closed heat exchange, so that the utilization rate of the waste heat is higher, and the effect is particularly obvious especially in large-scale air conditioning equipment.
In implementation, the first unit and the second unit can be arranged in the same place or different places, if the first unit and the second unit are arranged in different places, the first unit and the second unit can respectively provide refrigeration and heating, for example, when the first unit refrigerates, the second unit can switch the circulating direction of the flow paths to heat, so that the combined supply of cold and heat is realized, at the moment, the large temperature difference and the high intensity are subjected to countercurrent heat exchange, the heat exchange coefficient is in direct proportion to the temperature difference, the heat exchange efficiency is extremely high, and of course, when the first unit heats, the second unit can also be combined with the actual requirement to realize different function supplies. Thus, the air conditioning equipment provided by the scheme realizes simultaneous supply of cold and hot air, ensures that different requirements of users can be met, and has extremely high performance coefficient.
The first unit may include, but is not limited to, an air conditioning unit, such as a central air conditioner, and the like. The technology of compression refrigeration is also called as electric refrigeration technology, and the technology is mature and is not described herein. With reference to the type of compressor, for example, a screw water chiller may be used, with a compression ratio up to 20, and a high refrigeration energy efficiency ratio. The screw chiller may include SJ-100WS.
In the low-temperature area, the conventional waterway is frozen, the heat exchange performance is poor, the effective and reliable operation of the unit is affected, the unit realized based on the low-temperature enthalpy injection technology can be selected as the first unit, the enthalpy value of the discharge port of the compressor is improved, the timely circulation of the refrigerant is facilitated, and the reliable operation of the whole machine is ensured.
Wherein the second assembly may include, but is not limited to, a lithium bromide assembly. The aqueous solution includes an aqueous solution of lithium bromide. The lithium bromide unit uses heat energy as power, and the consumption of electric energy is low. Because the waste heat is used as a heat source in the scheme, the medium-low temperature heat source is common, and therefore, the type of the lithium bromide unit can comprise a warm water type lithium bromide unit. The Wen Shuixing lithium bromide unit has low energy consumption, small vibration, low noise and quiet and stable operation, and is particularly suitable for occasions with high requirements for silence, such as hospitals, hotels, canteens, office buildings, movie theaters and the like. The above-mentioned electric refrigeration technology is combined with lithium bromide machine set, so that it can implement further raising refrigeration energy efficiency ratio, and can implement arbitrary regulation within 10% -100% according to the requirements. The model of the lithium bromide unit may be, but is not limited to, the reference LCC-01-84 series.
It should be noted that, the specific implementation of the first unit and the second unit in the present solution is a mature technology, and may be implemented with reference to related technologies, which is not described in detail in this solution.
Compared with the prior art that the cooling water of the condenser of the first unit is directly cooled to the atmosphere, the temperature of the cooling water passing through the second unit is relatively higher, and in order to ensure stability, the cooling water cooling device also optionally comprises a first heat exchange device arranged on a waterway between the second end of the second waterway and the second end of the first waterway; the first end of the first heat exchange device is connected with the second end of the second waterway, and the second end of the first waterway is connected with the second end of the first waterway and used for carrying out heat exchange on cooling water passing through the second waterway and then conveying the cooling water to the first waterway. So, can carry out the secondary condensation through first heat transfer device in order to dispel the heat, the condensation effect is better.
Optionally, the first heat exchange device includes: a first heat exchanger 13 and a heat-dissipating water tower 14; the first end of the first heat exchanger 13 is connected with the second end of the second waterway 7, the second end is connected with the first end of the heat dissipation water tower 14, the third end is connected with the second end of the first waterway 4, and the second end of the heat dissipation water tower 14 is connected with the third end of the first heat exchanger 13 to form a circulating heat exchange loop.
The first heat exchanger 13 and the heat-dissipating water tower 14 can dissipate heat of the cooling water. The cooling water tower may include, but is not limited to, a spray water tower.
Wherein, be provided with first switch 15 between first heat exchanger 13 and the cooling tower 14, can control the break-make. The first switch may include, but is not limited to, an electronic expansion valve.
In this embodiment, after the cooling water is cooled by the first heat exchanger, it is cooled by the cooling water tower, then a part of the cooling water enters the first water channel, and another part of the cooling water returns to the first heat exchanger, so that a closed circulation heat exchange loop is formed, and the cooling effect is very good.
Based on the structure shown in fig. 1, the heat radiation water tower and the first switch can be removed, the first heat exchanger 13 is directly used as a first heat exchange device, self-circulation heat radiation is realized, the heat radiation effect is achieved, and the structural design is very simple.
It will be appreciated that the air conditioning apparatus further comprises an expansion tank 16 arranged in the water path between the first end of the first water path 4 and the first end of the second water path 7; an expansion tank 16 for storing cooling water.
Besides the evaporator, the condenser, the throttling component and the compressor, the first unit also comprises a gas-liquid separator 17 and a second heat exchange device; the first end of the evaporator 9 of the first unit 1 is connected with the first end of the gas-liquid separator 17; the first end of the compressor 8 is connected with the first end of the second heat exchange device through the expansion water tank 16, and is also connected with the first end of the condenser 3 of the first unit 1, and the second end is connected with the third end of the gas-liquid separator 17; the second end of the second heat exchange device is connected with the second end of the gas-liquid separator 17; a gas-liquid separator 17 for separating gas from liquid of the refrigerant; a compressor 8 for compressing the vapor of the refrigerant sucked from the evaporator 9 of the first unit 1, discharging the vapor of the compressed refrigerant to the condenser of the first unit, and discharging the vapor of the compressed refrigerant to the expansion tank; the expansion tank 16 is also used for heating the stored cooling water by utilizing the heat emitted by the steam of the refrigerant discharged by the compressor; and the second heat exchange device is used for exchanging heat of the steam of the refrigerant passing through the expansion water tank and conveying the steam back to the compressor. Wherein the second heat exchanging means may comprise a second heat exchanger 18.
If the temperature of the cooling water provided by the first unit 1 is lower, the temperature requirement of the second unit 2 on the heat source cannot be met, auxiliary heating can be performed, and normal operation of the units is ensured. Assuming that the temperature of the cooling water provided by the first water path 4 is 45-50 ℃, and the temperature requirement of the second unit 2 on the heat source is 75-85 ℃, the auxiliary heat source is needed to be used for heating. In the scheme of the embodiment, the scheme based on the compressor is adopted, the heat output is carried out in the expansion water tank by utilizing the refrigerant with high temperature and high pressure after the compressor compresses, the cooling water is heated, and the stability of the unit is ensured. For example, if a heat source of 75℃at 80℃and 85℃is required, the temperature may be raised by auxiliary heating.
In practice, the number of compressors for auxiliary heating may be set according to the need for temperature, and is not particularly limited herein. In fig. 1, 2 compressors are taken as an example. If more than two compressors are arranged, one of the compressors or more than two compressors can be freely arranged to carry out auxiliary heating, and other compressors do not carry out auxiliary heating, so that the device is more flexible and realizes free circulation.
Correspondingly, a second switch 19 is arranged on the pipeline between the first end of the compressor and the expansion tank, and a third switch 20 is arranged on the pipeline between the second end of the compressor and the first end of the condenser.
Specifically, in fig. 1, the second switch 19 corresponding to the left compressor is connected to the first end of the left compressor 8 and the expansion tank 16, respectively. The second switch 19 corresponding to the right compressor is connected to the first end of the right compressor and the second switch 19 of the left side, respectively, to achieve connection of the first end of the right compressor 8 and the expansion tank 16. When the second switch 19 on the left is open, the compressor 8 on the left is in communication with the expansion tank, and when both second switches 19 are open, both compressors 8 are in communication with the expansion tank 16. The third switch 20 is connected to the first ends of the two compressors 8 and the first end of the condenser 3, respectively, wherein the third switch 20 is connected to the first end of the right compressor 8 via the right second switch 19. The second switch and the third switch may each include, but are not limited to, an electronic expansion valve. The type of electronic expansion valve may be referred to as TXB18-4A2.
An indicator light device 27 is also provided on the line between the compressor and the expansion tank, which indicator light device 27 is capable of indicating the status of the second switch. For example, when the electronic expansion valve is opened, a trigger signal is sent to the indicator light device, and the indicator light device emits light after receiving the trigger signal. In particular, the indicator light means 27 may comprise light emitting diodes, the model numbers may be referred to as AD16-16C.
In addition, the second end of the condenser 3 is connected to the second end of the evaporator 9 by a throttle member 10. The third and fourth ends of the evaporator 9 are connected to a third heat exchanger 26 (such as a fan coil) that exchanges heat indoors.
In some embodiments, the air conditioning apparatus may further comprise a heating device 21 disposed on the waterway between the expansion tank 16 and the first end of the second waterway 7; and a heating device 21 for heating the passing cooling water. In this embodiment, a scheme of directly adding a heating device to heat the cooling water is adopted.
The heating device 21 may be, but not limited to, a gas boiler, and after heating water in the gas boiler, heat exchange is performed with the passing cooling water to raise the temperature of the cooling water.
It will be appreciated that the air conditioning apparatus may also include an expansion tank 22 disposed in the water path between the first heat exchange means and the second end of the first water path 4; an expansion tank 22 for throttle control of the cooling water. The expansion tank is also used for connecting a user water pipe to input cooling water. Wherein the user water pipe may comprise a municipal tap water pipe. In order to ensure the cleaning of the water entering the unit, the device also comprises an electronic dirt remover which is arranged on the water path between the expansion tank and the water pipe of the user.
The joint point of the water cooling unit and the lithium bromide unit is a high-efficiency heat exchanger, and a multi-baffle plate type shell-and-tube heat exchanger is adopted. When the water-cooling unit is in refrigeration operation, high-temperature fluid is arranged in the tube, heat dissipation fluid medium is arranged outside the tube, and the heat dissipation fluid medium is used as a heat source of the lithium bromide unit to operate the refrigeration cycle again. As the temperature of the ordinary hot water working condition can only meet 45-50 ℃ and can not meet the water temperature requirement of 75 ℃ of the warm water type lithium bromide unit, an auxiliary heat source is needed to be used for heating, and the normal operation of the unit is ensured. In the scheme, an auxiliary compressor is adopted to supply a heat source, and a high-temperature and high-pressure refrigerant is utilized to output heat, so that the stability of a high-temperature working condition is met.
The condenser of the first unit can be, but not limited to, a high-efficiency shell-and-tube heat exchanger, has a multi-baffle plate and multi-loop structure, adopts an internal threaded copper pipe, and has the advantages of countercurrent heat exchange, high heat exchange efficiency and small heat loss in the process.
The first heat exchanger and the second heat exchanger can be air-cooled heat exchangers and the like.
It will be appreciated that the first unit may include a controller, as shown in fig. 2, and the electronic dirt separator 24, the first switch 15, the second switch 19, the third switch 20, the heating device 21, the first heat exchanger 13, the second heat exchanger 18, the cooling water tower 14, etc. in this embodiment may be connected to the controller 28, so as to implement simple switch control when required by a user. The indicator lamp device 27 may be connected to a controller 28, and the controller may control the indicator lamp device 27 to be turned on when the second switch is turned on. In implementation, the model of each component can be selected according to actual needs, and the general model can be applied to the scheme.
In the above related embodiment, as shown in fig. 1, the expansion tank may be further provided with a hot water supply port 25 for supplying hot water to the user, thus realizing three links of cooling, heating and hot water supply.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "plurality" means at least two.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (8)
1. An air conditioning apparatus, comprising:
A first unit and a second unit;
Wherein the first unit comprises a unit adopting compression refrigeration; the first unit comprises a condenser; the condenser of the first unit comprises a water-cooled condenser, and the water-cooled condenser comprises a first waterway;
The second unit comprises a unit adopting absorption refrigeration; the second unit comprises an evaporator and a generator, and a second waterway passing through the evaporator and the generator of the second unit; the first end of the second waterway is connected with the first end of the first waterway, and the second end of the second waterway is connected with the second end of the first waterway to form a circulating waterway;
the first unit is used for performing air conditioning through compression refrigeration, wherein cooling water in the first waterway circularly dissipates heat through the second waterway;
The second unit is used for absorbing the waste heat emitted by the cooling water passing through the second waterway through absorption refrigeration to perform air conditioning;
The expansion tank is arranged on the waterway between the first end of the first waterway and the first end of the second waterway;
the expansion water tank is used for storing cooling water;
The first unit further comprises at least one compressor, an evaporator, a gas-liquid separator and a second heat exchange device;
The first end of the evaporator of the first unit is connected with the first end of the gas-liquid separator;
the first end of the compressor is connected with the first end of the second heat exchange device through the expansion water tank, and is also connected with the first end of the condenser of the first unit, and the second end of the compressor is connected with the third end of the gas-liquid separator;
The second end of the second heat exchange device is connected with the second end of the gas-liquid separator;
the gas-liquid separator is used for separating gas from liquid of the refrigerant;
the compressor is used for compressing the steam of the refrigerant sucked from the evaporator of the first unit and discharging the steam of the compressed refrigerant to the condenser of the first unit; the device is also used for discharging the steam of the compressed refrigerant to the expansion water tank;
The expansion water tank is also used for heating the stored cooling water by utilizing the heat emitted by the steam of the refrigerant discharged by the compressor;
the second heat exchange device is used for exchanging heat of steam of the refrigerant passing through the expansion water tank and conveying the steam back to the compressor.
2. The air conditioning apparatus of claim 1, further comprising a first heat exchange device disposed on the waterway between the second end of the second waterway and the second end of the first waterway;
the first end of the first heat exchange device is connected with the second end of the second waterway, and the second end of the first heat exchange device is connected with the second end of the first waterway and used for carrying out heat exchange on cooling water passing through the second waterway and then conveying the cooling water to the first waterway.
3. An air conditioning apparatus according to claim 2, wherein the first heat exchanging means comprises: a first heat exchanger and a heat-dissipating water tower; the first end of the first heat exchanger is connected with the second end of the second waterway, the second end of the first heat exchanger is connected with the first end of the heat dissipation water tower, the third end of the first heat exchanger is connected with the second end of the first waterway, and the second end of the heat dissipation water tower is connected to the third end of the first heat exchanger to form a circulating heat exchange loop.
4. The air conditioning apparatus of claim 1, further comprising a heating device disposed on the waterway between the expansion tank and the first end of the second waterway;
The heating device is used for heating the passing cooling water.
5. The air conditioning apparatus of claim 2, further comprising an expansion tank disposed on the waterway between the first heat exchange device and the second end of the first waterway;
and the expansion tank is used for throttling and controlling the cooling water.
6. An air conditioning apparatus according to claim 5, wherein the expansion tank is further adapted to be connected to a user water pipe for inputting cooling water.
7. The air conditioning apparatus of claim 6, further comprising an electronic dirt separator disposed on a waterway between the expansion tank and the user water pipe.
8. An air conditioning unit according to any of claims 1 to 7, wherein the first unit comprises an air conditioning unit and/or the second unit comprises a lithium bromide unit.
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| CN201910404120.0A CN110131820B (en) | 2019-05-15 | 2019-05-15 | Air conditioning equipment |
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| CN210179811U (en) * | 2019-05-15 | 2020-03-24 | 格力电器（合肥）有限公司 | Air conditioning apparatus |
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| JP3859566B2 (en) * | 2002-09-20 | 2006-12-20 | リンナイ株式会社 | Hybrid air conditioner |
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| KR100877024B1 (en) * | 2007-10-31 | 2009-01-07 | 주식회사 귀뚜라미 범양냉방 | Apparatus for supplying warm water during cooling mode in absorption water cooler and heater |
| CN101750230B (en) * | 2010-01-19 | 2011-03-23 | 东南大学 | Performance detection device suitable for water-cooled refrigerating and compressing condenser unit |
| CN104456998A (en) * | 2013-09-17 | 2015-03-25 | 珠海格力电器股份有限公司 | Self-adaptive refrigerating system and air conditioner |
| CN103512268A (en) * | 2013-09-28 | 2014-01-15 | 昆山市周市溴化锂溶液厂 | Lithium bromide solution absorption compression type refrigerating device |
| CN104457002B (en) * | 2014-12-31 | 2017-01-25 | 昆山台佳机电有限公司 | Integrated double-cooling water chilling unit |
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| KR20050082217A (en) * | 2004-02-18 | 2005-08-23 | 진금수 | Refrigerating mechine |
| CN210179811U (en) * | 2019-05-15 | 2020-03-24 | 格力电器（合肥）有限公司 | Air conditioning apparatus |
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