CN117029254A - Evaporator condensate water recycling system, control method and air conditioner - Google Patents
Evaporator condensate water recycling system, control method and air conditioner Download PDFInfo
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- CN117029254A CN117029254A CN202311080078.4A CN202311080078A CN117029254A CN 117029254 A CN117029254 A CN 117029254A CN 202311080078 A CN202311080078 A CN 202311080078A CN 117029254 A CN117029254 A CN 117029254A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 238000004064 recycling Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000002745 absorbent Effects 0.000 claims abstract description 37
- 239000002250 absorbent Substances 0.000 claims abstract description 37
- 239000006096 absorbing agent Substances 0.000 claims abstract description 28
- 238000011084 recovery Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 26
- 239000003507 refrigerant Substances 0.000 claims description 15
- 239000012071 phase Substances 0.000 claims description 11
- 238000004781 supercooling Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 5
- 239000007791 liquid phase Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 38
- 238000010521 absorption reaction Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000009835 boiling Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- 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
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
-
- 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
- F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
- F25B35/02—Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a liquid as sorbent, e.g. brine
-
- 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
- F25B37/00—Absorbers; Adsorbers
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Materials Engineering (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The application provides an evaporator condensate water recycling system, a control method and an air conditioner, wherein the system comprises the following components: the condensed water recovery container is used for receiving condensed water generated by the evaporator; the system heat exchanger is in heat exchange coupling connection with the first component to be condensed, and the water outlet of the condensed water recovery container can be communicated with the inlet of the system heat exchanger; the absorber is communicated with the outlet of the system heat exchanger; the generator is communicated with the absorber, and the absorbent working medium solution in the absorber can enter the generator under the pumping action of the water pump and flow back into the absorber after being throttled at the first throttling device; and a second means for heating the absorbent working fluid solution in the generator to enable water in the absorbent working fluid solution to be discharged out of the generator in a gaseous state. The application realizes high-efficiency utilization of condensed water and simultaneously discharges the condensed water to the external environment in a gaseous mode, and does not pollute the external environment.
Description
Technical Field
The application belongs to the technical field of air conditioning, and particularly relates to an evaporator condensate water recycling system, a control method and an air conditioner.
Background
The water temperature of the air conditioner condensed water is generally 10-15 ℃, and a large amount of cold energy is contained. At present, the treatment mode of condensed water is divided into two modes of direct discharge and recycle, wherein the direct discharge is waste for the cold quantity of the condensed water and has the problem of environmental pollution; the recycling is to collect condensed water and send the condensed water outdoors for strengthening the heat dissipation of the condenser, and the common modes are as follows: soaking the U-shaped pipe with condensed water, spraying the U-shaped pipe on a condenser through a copper pipe with holes or slits, and the like. The system structure design of this kind of mode is comparatively simple, but the cooling effect is limited, and the degree of utilization to the condensate water is lower.
Disclosure of Invention
Therefore, the application provides an evaporator condensate water recycling system, a control method and an air conditioner, which can solve the technical problems that the effect of recycling the cold energy of the evaporator condensate water for cooling is limited and the cold energy utilization degree is low in the prior art.
In order to solve the above problems, the present application provides an evaporator condensate water recycling system, comprising:
the condensed water recovery container is used for receiving condensed water generated by the evaporator;
the system heat exchanger is in heat exchange coupling connection with the first component to be condensed, and the water outlet of the condensed water recovery container can be communicated with the inlet of the system heat exchanger;
an absorber in communication with an outlet of the system heat exchanger;
the generator is communicated with the absorber, and the absorbent working medium solution in the absorber can enter the generator under the pumping action of the water pump and flow back into the absorber after being throttled at the first throttling device;
and a second means for heating the absorbent working fluid solution in the generator to enable water in the absorbent working fluid solution to be discharged out of the generator in a gaseous state.
In some embodiments of the present application, in some embodiments,
the water outlet of the condensed water recovery container is communicated with the inlet of the system heat exchanger through a second throttling device, and the second throttling device can throttle the condensed water of the liquid phase flowing out of the water outlet into gas-liquid two phases.
In some embodiments of the present application, in some embodiments,
the generator is provided with an exhaust port, and a vacuum pump is arranged at the exhaust port.
In some embodiments of the present application, in some embodiments,
and a spraying piece is arranged at the tail end of the outflow pipeline of the first throttling device, and is positioned in the absorber.
In some embodiments of the present application, in some embodiments,
the absorptive working medium solution is LiI solution.
In some embodiments of the present application, in some embodiments,
the first component is a supercooling pipe which is detachably connected to a refrigerant outlet of a condenser of the air conditioner.
In some embodiments of the present application, in some embodiments,
the second component is a heat exchange tube which is positioned in the generator and immersed in the absorbent working medium solution of the generator.
In some embodiments of the present application, in some embodiments,
the second component is connected in series between an exhaust port of a compressor in the air conditioner and a refrigerant inlet of the condenser.
The application also provides a control method of the evaporator condensate water recycling system, which comprises the following steps:
judging whether the water level of the condensed water in the condensed water recovery container is higher than a set water level;
if the condensed water level is higher than the set water level, controlling a second throttling device to start throttling the condensed water flowing through the second throttling device to form gas-liquid two phases;
judging whether the liquid level of the absorbent working medium solution in the absorber is higher than a set liquid level;
and if the liquid level of the absorbent working medium solution is higher than the set liquid level, controlling the water pump and the first throttling device to be started.
In some embodiments of the present application, in some embodiments,
when the evaporator condensate water recycling system includes a vacuum pump,
and controlling the water pump and the first throttling device to be started and simultaneously controlling the vacuum pump to be started.
The application also provides an air conditioner comprising the evaporator condensate water recycling system.
The evaporator condensate water recycling system, the control method and the air conditioner provided by the application have the following beneficial effects:
the evaporator condensate water recycling system adopts an absorption refrigeration principle, can form high-efficiency cooling by utilizing the cold energy of condensate water generated by an evaporator, and simultaneously, can discharge the condensate water in a gaseous state under the heating action of a second component by utilizing the characteristic that the boiling point of an absorption working medium solution is far higher than that of water, so that the condensate water is effectively utilized and is finally discharged into the external environment in a gaseous state, the external environment is not polluted, and meanwhile, the corresponding part to be condensed is not corroded in an adverse way;
the second component is connected in series between an exhaust port of a compressor in the air conditioner and a refrigerant inlet of the condenser, so that the high-temperature refrigerant discharged by the compressor can be utilized to heat the absorbent working medium solution in the generator, the refrigerant is precooled before entering a subsequent condenser of the air conditioner, the working performance of the air conditioner is improved, condensed water dissolved in the absorbent working medium solution is evaporated into water vapor and then is discharged, the structural design is simplified, and meanwhile, the cold energy of the condensed water is objectively utilized for the second time in the generator;
the condensed water flowing out of the condensed water recovery container is throttled and depressurized by the second throttling device before entering the system heat exchanger to form gas-liquid two-phase condensed water, so that on one hand, the condensed water of the gas-liquid two-phase is beneficial to improving the heat exchange efficiency of the condensed water and the first component and the cooling effect of the first component, and on the other hand, the depressurized condensed water is beneficial to the formation of internal pressure difference of the system, and is beneficial to the circulating flow of the absorbent working medium solution in the system;
the operation of the vacuum pump can adjust the pressure in the generator (a low-pressure environment with a certain vacuum degree is formed, and the low-pressure environment is lower than the external atmospheric pressure at the moment), so that the corrosion of the absorbing working medium to all parts contacted with the absorbing working medium is reduced, the boiling point of corresponding water is reduced, and the water in the absorbing working medium solution is more smoothly evaporated;
the supercooling pipe which is independent of the condenser is communicated with the outflow refrigerant of the condenser on one hand, and is simultaneously positioned in the system heat exchanger of the application on the other hand, so that heat exchange can be formed between the supercooling pipe and the corresponding heat exchange pipe section in the system heat exchanger.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the application, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present application, should fall within the ambit of the technical disclosure.
FIG. 1 is a system schematic diagram of an evaporator condensate water recovery system according to an embodiment of the present application;
fig. 2 is a control logic diagram of a control method of the evaporator condensate recycling system according to an embodiment of the present application.
The reference numerals are expressed as:
1. a condensed water recovery container;
2. a system heat exchanger;
3. an absorber;
4. a generator;
5. a water pump;
61. a first throttle device; 62. a second throttle device;
8. a vacuum pump;
9. a spray member;
101. a supercooling pipe; 102. a condenser; 103. a heat exchange tube; 104. a compressor.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
Referring to fig. 1 and fig. 2 in combination, according to an embodiment of the present application, and specifically referring to fig. 1, there is provided an evaporator condensate recycling system, including:
the condensate recovery vessel 1, which may be configured in particular as a trough for receiving condensate produced by the evaporator, is arranged in a preferred embodiment in the lower region of the evaporator in order to effect the collection of condensate falling under the effect of its own weight during operation of the evaporator;
the system heat exchanger 2 is connected with a first component (not marked in the figure) to be condensed in a heat exchange coupling way, the water outlet of the condensed water recovery container 1 can be communicated with the inlet of the system heat exchanger 2, and the heat exchange coupling way is that heat and cold conduction exists between the first component and a heat exchange pipe in the system heat exchanger 2, so that the purpose of cooling and radiating the first component by the cold of condensed water in the system heat exchanger 2 is realized;
an absorber 3 which is communicated with the outlet of the system heat exchanger 2 and is provided with an absorption working medium solution therein, wherein the absorption working medium solution can absorb condensed water (gas-liquid two-phase or liquid phase) flowing out of the system heat exchanger 2;
the generator 4 is communicated with the absorber 3, and the absorbent working medium solution in the absorber 3 can enter the generator 4 under the pumping action of the water pump 5 and flow back into the absorber 3 after being throttled at the first throttling device 61, namely the water pump 5 can drive the absorbent working medium in the system into the absorber 3 and the generator 4 to form circulation;
a second element (not referenced in the figures) for heating the absorbent working fluid solution inside the generator 4 so as to enable the water inside the absorbent working fluid solution to exit the generator 4 in a gaseous form, in order to ensure the exit of the gaseous water (i.e. water vapor) from inside the generator 4, it being understood that the generator 4 is provided with a corresponding exhaust port (not referenced in the figures).
According to the technical scheme, the evaporator condensate water recycling system adopts an absorption refrigeration principle, the first component to be condensed can be efficiently cooled by utilizing the cold energy of condensate water generated by an evaporator, meanwhile, the condensate water is discharged in a gaseous state under the heating action of the second component by utilizing the characteristic that the boiling point of an absorption working medium solution is far higher than that of water, the condensate water is effectively utilized and is finally discharged to the external environment in a gaseous state, the pollution to the external environment is avoided, and meanwhile, adverse corrosion to the corresponding component to be condensed is avoided.
In general, the absorbent working medium solution may be, for example, an aqueous solution of LiBr, an aqueous solution of LiI, etc., where the boiling points of the working medium LiBr and LiI are far higher than that of water, and the absorbent working medium has a strong moisture absorption capacity, and can absorb water vapor generated by heat exchange well, so that the water can be discharged to the external environment in a gaseous state when the second component is heated, and the working medium does not enter the external environment, so that no pollution is caused to the external environment.
In a preferred embodiment, the second component is a heat exchange tube 103, the heat exchange tube 103 being located within the generator 4 and immersed in the absorbent working fluid solution of the generator 4.
In the technical scheme, the heat exchange tube 103 is used for heating the absorptive working medium solution in a direct contact mode, so that the absorptive working medium solution has higher heat conduction efficiency, and heat conduction loss caused by other indirect heating modes is prevented.
The heat exchange tube 103 is specifically, for example, a plurality of U tubes connected in series.
In a specific embodiment, the evaporator condensate recycling system of the application is applied to an air conditioner, at this time, the second component is correspondingly connected in series between the exhaust port of the compressor 104 and the refrigerant inlet of the condenser 102 in the air conditioner, so that the high-temperature refrigerant discharged by the compressor 104 can be used for heating the absorbent working medium solution in the generator 4, the refrigerant is precooled before entering the subsequent condenser 102 of the air conditioner, the working performance of the air conditioner is improved, the condensate water dissolved in the absorbent working medium solution is evaporated into water vapor and then discharged, the structural design is simplified, and meanwhile, the cooling capacity of the condensate water is objectively utilized in the generator 4.
Generally, the temperature of the refrigerant at the exhaust port of a compressor of a general household air conditioner is approximately in the range of 70-100 ℃, based on this phenomenon, the absorbent working medium solution is preferably a LiI solution, and compared with a LiBr aqueous solution, the LiI aqueous solution is more suitable for using a low-temperature (70-100 ℃) heat source and has less corrosiveness.
In a preferred embodiment, the water outlet of the condensed water recovery vessel 1 is communicated with the inlet of the system heat exchanger 2 via a second throttling device 62, the second throttling device 62 can throttle the condensed water in the liquid phase flowing out from the water outlet into two phases of gas and liquid, and the second throttling device 62 and the first throttling device 61 can both use electronic expansion valves specifically so as to facilitate the control adjustment of the two throttling devices.
In the technical scheme, the condensed water flowing out of the condensed water recovery container 1 is throttled and depressurized by the second throttling device 62 before entering the system heat exchanger 2 to form gas-liquid two-phase condensed water, so that the gas-liquid two-phase condensed water is beneficial to improving the heat exchange efficiency of the condensed water and the first component on one hand, the cooling effect of the first component is improved, and on the other hand, the depressurized condensed water is beneficial to the formation of internal pressure difference of the system, so that the cyclic flow of the absorptive working medium solution in the system is facilitated.
As described above, the generator 4 has an exhaust port to facilitate the smooth discharge of condensed water in the system into the external environment in the form of water vapor, and in this case, as a preferred embodiment, the exhaust port is provided with a vacuum pump 8, so that the pressure in the generator 4 can be adjusted by the operation of the vacuum pump 8 (a low-pressure environment with a certain vacuum degree is formed, and the low-pressure environment is lower than the external atmospheric pressure at this time), so that the corrosion of the absorbent working medium to the components contacted with the absorbent working medium is reduced, the boiling point of the corresponding water is reduced, and the water in the absorbent working medium solution is steamed out more smoothly.
The foregoing first component may be, for example, the condenser 102 in an air conditioner, so as to achieve the purpose of cooling the condenser 102 by using the cooling capacity of the condensed water, and at this time, a corresponding improvement needs to be made on the result of the condenser 102, so as to match with the first component to form a better heat conduction effect, in a preferred embodiment, the first component is a supercooling pipe 101, and the supercooling pipe 101 is detachably connected to the refrigerant outlet of the condenser 102 of the air conditioner, that is, the supercooling pipe 101, which is independent of the condenser 102, is in communication with the outflow refrigerant of the condenser 102 on the one hand, and is simultaneously located in the system heat exchanger 2 of the present application, so as to form heat exchange with the corresponding heat exchange tube section in the system heat exchanger 2.
With continued reference to fig. 1, in some embodiments, a spray member 9 is disposed at the end of the outflow pipeline of the first throttling device 61, the spray member 9 is located in the absorber 3, and the throttled absorbent working medium solution flows back into the absorber 3 in a spraying manner, so that the quick absorption of the condensed water entering the absorber 3 by the absorbent working medium solution is facilitated, and the refrigerating efficiency of the system is further improved.
According to an embodiment of the present application, there is also provided a control method of the evaporator condensate water recycling system as described above, including the steps of:
judging whether the water level of the condensed water in the condensed water recovery container 1 is higher than a set water level, specifically, a corresponding liquid level sensor is arranged in the condensed water recovery container 1, and the real-time water level of the condensed water in the condensed water recovery container 1 is detected through the liquid level sensor;
if the condensed water level is higher than the set water level, the second throttling device 62 (i.e. the electronic expansion valve in fig. 2) is controlled to open so as to throttle the condensed water flowing through the second throttling device to form gas-liquid two phases;
judging whether the liquid level of the absorbent working medium solution in the absorber 3 is higher than a set liquid level, and equally, arranging a corresponding liquid level sensor in the absorber 3, and detecting the real-time liquid level of the absorbent working medium solution in the absorber 3 through the liquid level sensor;
if the level of the absorbent working fluid solution is higher than the set level, the water pump 5 and the first throttling device 61 (not shown in fig. 2) are controlled to be turned on.
In the technical scheme, the system is controlled to operate when the amount of the condensed water is large, so that the reliable and stable operation of the system is ensured. The evaporator condensate water recycling system adopts an absorption refrigeration principle, can utilize the cold energy of condensate water generated by an evaporator to form efficient cooling for a first component to be condensed, and simultaneously, utilizes the characteristic that the boiling point of an absorption working medium solution is far higher than that of water, so that the condensate water is discharged in a gaseous state under the heating action of a second component, and can be finally discharged into the external environment in a gaseous state while realizing the efficient utilization of the condensate water, so that the pollution to the external environment is avoided, and meanwhile, the adverse corrosion to the corresponding component to be condensed is avoided.
When the evaporator condensate water recycling system comprises a vacuum pump 8, the water pump 5 and the first throttling device 61 are controlled to be started, and the vacuum pump 8 is also controlled to be started at the same time, so that the vacuum degree in the generator 4 is adjusted, smooth evaporation of water in the absorbent working medium solution in the generator is realized, and the refrigerating effect of the system is improved.
According to an embodiment of the present application, there is further provided an air conditioner including the above-mentioned evaporator condensate water recycling system, specifically, the air conditioner includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, and a throttling element, wherein the indoor heat exchanger, the outdoor heat exchanger, the compressor, and the throttling element form a refrigerant circulation connection, the indoor heat exchanger is also referred to as the above-mentioned evaporator, and the outdoor heat exchanger is referred to as the above-mentioned condenser.
The evaporator condensate water recycling system adopts the absorption refrigeration principle, so that the first component to be condensed can be efficiently cooled by utilizing the cold energy of the condensate water generated by the evaporator, meanwhile, the condensate water is discharged in a gaseous state under the heating action of the second component by utilizing the characteristic that the boiling point of the absorption working medium solution is far higher than that of water, the high-efficiency utilization of the condensate water is realized, and meanwhile, the condensate water is finally discharged to the external environment in a gaseous state, so that the pollution to the external environment is avoided, and meanwhile, the adverse corrosion to the corresponding component to be condensed is avoided.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application. The foregoing is merely a preferred embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present application, and these modifications and variations should also be regarded as the scope of the application.
Claims (11)
1. An evaporator condensate water recycling system, comprising:
a condensed water recovery container (1) for receiving condensed water generated by the evaporator;
the system heat exchanger (2) is in heat exchange coupling connection with a first component to be condensed, and the water outlet of the condensed water recovery container (1) can be communicated with the inlet of the system heat exchanger (2);
an absorber (3) in communication with the outlet of the system heat exchanger (2);
the generator (4) is communicated with the absorber (3), and the absorbent working medium solution in the absorber (3) can enter the generator (4) under the pumping action of the water pump (5) and flow back into the absorber (3) after being throttled at the first throttling device (61);
and a second means for heating the absorbent working fluid solution in the generator (4) to enable the water in the absorbent working fluid solution to be discharged out of the generator (4) in a gaseous state.
2. The evaporator condensate water recycling system of claim 1 wherein,
the water outlet of the condensed water recovery container (1) is communicated with the inlet of the system heat exchanger (2) through a second throttling device (62), and the second throttling device (62) can throttle condensed water in a liquid phase flowing out of the water outlet into gas-liquid two phases.
3. The evaporator condensate water recycling system of claim 1 or 2, wherein,
the generator (4) has an exhaust port, where a vacuum pump (8) is arranged.
4. The evaporator condensate water recycling system of claim 1 wherein,
a spray piece (9) is arranged at the tail end of the outflow pipeline of the first throttling device (61), and the spray piece (9) is positioned in the absorber (3).
5. The evaporator condensate water recycling system of claim 1 wherein,
the absorptive working medium solution is LiI solution.
6. The evaporator condensate water recycling system of claim 1 wherein,
the first component is a supercooling pipe (101), and the supercooling pipe (101) is detachably connected to a refrigerant outlet of a condenser (102) of the air conditioner.
7. The evaporator condensate water recycling system of claim 1 wherein,
the second component is a heat exchange tube (103), and the heat exchange tube (103) is positioned in the generator (4) and immersed in the absorbent working medium solution of the generator (4).
8. The evaporator condensate water recycling system of claim 7 wherein,
the second component is connected in series between an exhaust port of a compressor (104) and a refrigerant inlet of a condenser (102) in the air conditioner.
9. A control method of the evaporator condensate water recycling system according to any one of claims 2 to 8, characterized by comprising the steps of:
judging whether the condensed water level in the condensed water recovery container (1) is higher than a set water level;
if the condensed water level is higher than the set water level, controlling a second throttling device (62) to start throttling the condensed water flowing through the second throttling device to form gas-liquid two phases;
judging whether the liquid level of the absorbent working medium solution in the absorber (3) is higher than a set liquid level;
and if the liquid level of the absorbent working medium solution is higher than the set liquid level, controlling the water pump (5) and the first throttling device (61) to be started.
10. The control method of an evaporator condensate water recycling system of claim 9, wherein,
when the evaporator condensate water recycling system comprises a vacuum pump (8),
the water pump (5) and the first throttling device (61) are controlled to be started, and the vacuum pump (8) is also controlled to be started.
11. An air conditioner comprising the evaporator condensate water recycling system of any one of claims 1 to 8.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117301817A (en) * | 2023-11-29 | 2023-12-29 | 珠海格力电器股份有限公司 | Cooling control method, cooling system and vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117301817A (en) * | 2023-11-29 | 2023-12-29 | 珠海格力电器股份有限公司 | Cooling control method, cooling system and vehicle |
| CN117301817B (en) * | 2023-11-29 | 2024-04-09 | 珠海格力电器股份有限公司 | Cooling control method, cooling system and vehicle |
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