CN113405175B - Compound degree of depth dehumidification air treatment system - Google Patents
Compound degree of depth dehumidification air treatment system Download PDFInfo
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- CN113405175B CN113405175B CN202110702390.7A CN202110702390A CN113405175B CN 113405175 B CN113405175 B CN 113405175B CN 202110702390 A CN202110702390 A CN 202110702390A CN 113405175 B CN113405175 B CN 113405175B
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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
- 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
- F24F3/1423—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 with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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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
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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
- 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
- F24F3/147—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 with both heat and humidity transfer between supplied and exhausted air
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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
- 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
- F24F3/153—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 with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
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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
- 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
- F24F2003/144—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 dehumidification only
- F24F2003/1446—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 dehumidification only by condensing
- F24F2003/1452—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 dehumidification only by condensing heat extracted from the humid air for condensing is returned to the dried air
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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
- 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
- F24F2003/1458—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 using regenerators
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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
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1032—Desiccant wheel
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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
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1056—Rotary wheel comprising a reheater
Abstract
The invention relates to a compound deep dehumidification air treatment system, which comprises: a solution dehumidification device; the solution regeneration device, a solution circulation loop is formed between the solution dehumidification device and the solution regeneration device; a solid adsorption rotor comprising a dehumidification region and a regeneration region; a terminal sensible heat treatment device; the indoor return air sequentially passes through the solution dehumidifying device and the dehumidifying area of the solid adsorption rotating wheel for deep dehumidification and then enters the tail end sensible heat treatment device, and the tail end sensible heat treatment device regulates and controls the temperature of the dehumidified return air and then discharges the return air to the indoor; and the outdoor fresh air is heated and then sequentially passes through the regeneration zone of the solid adsorption rotating wheel and the solution regeneration device and is discharged. The compound type deep dehumidification air treatment system can meet deep dehumidification requirements, and can simultaneously achieve an air conditioning system with independently controlled temperature and humidity and give full play to the high energy efficiency ratio of a heat pump circulating system.
Description
Technical Field
The invention relates to the field of energy, in particular to a composite type deep dehumidification air treatment system.
Background
The regulation and control process of the indoor hot and wet environment of the building comprises two aspects of regulation and control of indoor temperature and humidity, a conventional air conditioning system generally utilizes a single cold source to simultaneously realize the regulation and control of the temperature and the humidity, energy utilization grade loss can be brought, and effective regulation and control of the hot and wet environment of the building can not be realized due to the fact that the conventional air conditioning system can not adapt to the gradual change of indoor sensible heat load and wet load.
As a novel air conditioning system form, the temperature and humidity independent control air conditioning system respectively adjusts the indoor temperature and humidity by different means: the humidity is adjusted by supplying dry air to bear the humidity load in the room, and the temperature in the room is adjusted by high-temperature cold water or refrigerant. The air conditioning mode can better complete the task of adjusting the indoor temperature and humidity, and can realize good energy-saving effect while effectively realizing the regulation and control of the building hot and humid environment. In the temperature and humidity independent control air conditioning system, the temperature of high-temperature cold water or a refrigerant required by temperature control is generally about 16-18 ℃, at the moment, the evaporation temperature of a cold source required by a compression refrigeration mode can be far higher than that corresponding to a conventional condensation dehumidification mode, and the energy efficiency of the refrigeration system can be greatly improved. At present, various high-temperature water chilling units are available, and therefore the independent temperature and humidity control air conditioning system is well popularized and applied to various buildings.
Meanwhile, aiming at industrial buildings such as storage air conditioners, food industry, electronic industry and the like which have large dehumidification capacity and low air supply humidity, a proper temperature and humidity independent control air conditioning system form is still lacked at present, and the further popularization and application of the novel air conditioning system mode are limited. Compared with the conventional public building, the industries such as storage, food, electronics and the like have higher requirements on environmental parameters such as temperature and humidity, cleanliness, fresh air supply and the like, some process production occasions have the characteristic of high sensible heat load, and meanwhile, the process production and the environment have higher dehumidification requirements, and the moisture content of air cannot be reduced to the air supply moisture content requirement of the process production by using the conventional technologies such as condensation dehumidification and the like. Aiming at the occasions with higher processing requirements on the temperature and the humidity, the mode of independently controlling the air conditioning system by the temperature and the humidity is adopted, so that the temperature and humidity control requirements can be better met, and the efficient system construction is realized.
From the background art, no efficient deep dehumidifying air treatment device aiming at the special temperature and humidity treatment requirements of industries such as storage, food, electronics and the like exists at present.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a hybrid type deep-dehumidification air treatment system capable of performing independent deep humidity treatment by combining a solution dehumidification method and a solid moisture absorption method, and improving the energy efficiency level by using a built-in heat pump circulation system as a cold and heat source.
In order to achieve the purpose, the invention adopts the following technical scheme:
a composite type deep dehumidifying air processing system,
a solution dehumidification device;
the solution regeneration device, a solution circulation loop is formed between the solution dehumidification device and the solution regeneration device;
the solid adsorption rotating wheel is rotatably arranged on the air outlet side of the solution dehumidifying device and the air inlet side of the solution regenerating device and comprises a dehumidifying area and a regenerating area;
the tail end sensible heat treatment device is arranged on the air outlet side of the solid adsorption rotating wheel;
the indoor return air sequentially passes through the solution dehumidifying device and the dehumidifying area of the solid adsorption rotating wheel for deep dehumidification and then enters the tail end sensible heat treatment device, and the tail end sensible heat treatment device regulates and controls the temperature of the dehumidified return air and then discharges the return air to the indoor;
and the outdoor fresh air is heated and then sequentially passes through the regeneration zone of the solid adsorption rotating wheel and the solution regeneration device and is discharged.
Preferably, the solution heat pump circulating device is further included for transferring heat generated in the process of dehumidifying by the solution dehumidifying device to the solution regenerating device for regenerating the solution.
Preferably, the solution heat pump cycle device comprises a first compressor, a first condenser, a first throttle valve and a first evaporator, the first evaporator is used for cooling the solution in the solution dehumidification device, the first condenser is used for heating the solution in the solution regeneration device, and the first compressor, the first condenser, the first throttle valve and the first evaporator form a first loop system.
Preferably, the solution heat pump circulating device further comprises a second condenser, the second condenser is used for preheating fresh air by using part of heat generated by the first solution heat pump circulating device, and the second condenser is connected with the heating device.
Preferably, the solution regeneration device comprises a first solution circulating pump, the solution dehumidifying device comprises a second solution circulating pump, and the first solution circulating pump is used for pumping out the solution in the solution regeneration device, exchanging heat with the first condenser and returning the solution to the solution regeneration device; and the second solution circulating pump is used for pumping the solution in the solution dehumidifying device, exchanging heat with the first evaporator and returning the solution to the solution dehumidifying device.
Preferably, the air-side heat pump cycle further comprises a second compressor, a third condenser, a second throttle valve and a second evaporator, wherein the output end of the second evaporator is communicated with the input end of the air inlet side of the solution dehumidifying device, the second evaporator is used for condensing and dehumidifying the return air, and the third condenser is communicated with the second condenser and is used for heating the fresh air.
Preferably, the fresh air treatment system further comprises a heating device, wherein the heating device comprises a first sensible heat recoverer, the first sensible heat recoverer is used for preheating the fresh air, and the fresh air enters the air inlet side of the second condenser and the air inlet side of the third condenser after passing through the first sensible heat recoverer and then is discharged after passing through the regeneration zone and the solution regeneration device in sequence.
Preferably, the fresh air enters the second sensible heat recoverer for cooling and discharging after passing through the solution recovery device, the second sensible heat recoverer is arranged on the air outlet side of the solution recovery device and used for cooling and discharging the fresh air, and the first sensible heat recoverer and the second sensible heat recoverer form a heat circulation loop.
Preferably, the heating device further comprises an electric heater, the electric heater is used for heating the fresh air, and the fresh air is discharged after passing through the first sensible heat recoverer, the second condenser, the third condenser, the electric heater, the regeneration zone, the solution recovery device and the second sensible heat recoverer in sequence.
Preferably, the solution heat recovery device is arranged on a solution circulation loop formed between the solution dehumidification device and the solution regeneration device and used for recovering heat generated by solution circulation.
Due to the adoption of the technical scheme, the invention has the following advantages:
(1) according to the composite type deep dehumidification air treatment system, indoor return air is sequentially subjected to dehumidification treatment through the moisture absorption solution dehumidification device and the solid adsorption rotating wheel dehumidification area, the energy efficiency advantages of various dehumidification forms in different humidity intervals are fully exerted, the energy efficiency condition of the system is greatly improved, and the requirement of deep independent dehumidification is met; sensible heat treatment of air is realized by utilizing the sensible heat treatment module, and the requirement of temperature control is realized, so that independent control of humidity and temperature is realized; the regeneration side regenerates the hygroscopic solution and the solid adsorption rotating wheel by utilizing outdoor fresh air, so that the continuous deep dehumidification of the system is realized;
(2) an independent solution heat pump circulating device is arranged between the moisture absorption solution regeneration-dehumidification modules, and a first evaporator of the solution heat pump circulation is utilized to cool the solution, so that the cold quantity requirement of the dehumidifier in the treatment process is met; the first condenser of the heat pump circulation is used for heating the solution, so that the heat requirement in the solution regeneration process is met, and the high energy efficiency ratio of the heat pump circulation system is fully exerted;
(3) independent air side heat pump circulating devices are arranged at the return air inlet and the fresh air inlet, and the return air is condensed and dehumidified by using an evaporator of heat pump circulation, so that the cold quantity requirement in the condensation and dehumidification process is met; the condenser of the heat pump circulation is used for preheating the regenerated air at the fresh air inlet, so that the regenerated air meets the regeneration temperature requirement required by the solid moisture absorption rotating wheel, and the energy efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a combined type deep dehumidification air treatment system according to an embodiment of the present disclosure;
description of the reference numerals:
1-appendage adsorption rotating wheel, 101-dehumidification area, 102-regeneration area, 2-first compressor, 31-first condenser, 32-second condenser, 4-first throttle valve, 5-first evaporator, 6-solution heat recoverer, 71-first solution circulating pump, 72-second solution circulating pump, 81-first sensible heat recoverer, 82-second sensible heat recoverer, 9-heater, 10-second compressor, 11-third condenser, 12-second throttle valve, 13-first evaporator, 14-solution dehumidification device, 15-solution regeneration device and 16-sensible heat treatment device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used to define elements only for convenience in distinguishing between the elements, and unless otherwise stated have no special meaning and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the embodiment of the present invention provides a combined type deep dehumidification air treatment system, which includes a solution dehumidification device 14, a solution regeneration device 15, a solid dehumidification device 1, and a tail end sensible heat treatment device 81. A solution circulation loop is formed between the solution dehumidifying device 14 and the solution regenerating device 15. The solution dehumidifying device 14 is used for dehumidifying air; the solution regenerating device 15 is used for regenerating the solution in the solution dehumidifying device 14, and the dehumidifying solution is regenerated and then returned to the solution dehumidifying device 14 to continue dehumidifying, so that the requirement of continuous dehumidifying of the solution dehumidifying device 14 is met. The solid dehydrating unit 1 specifically is the solid adsorption runner, solid adsorption runner 1 includes dehumidification district 101 and regeneration zone 102, dehumidification district 101 is used for the degree of depth dehumidification of air, regeneration zone 102 is used for the regeneration of dehumidification district 101, just solid adsorption runner 1 rotates ceaselessly, drives dehumidification district 101 and regeneration zone 102 constantly dehumidify and regenerate. The end sensible heat treatment device 16 is used for realizing sensible heat treatment of air after the air is subjected to deep dehumidification, and realizing temperature control requirements, thereby realizing independent control of humidity and temperature.
Compound degree of depth dehumidification air processing system is carrying out the during operation, and indoor return air passes through in proper order solution dehydrating unit 14 and solid dehydrating unit 1's dehumidification district 101 carries out degree of depth dehumidification and then gets into terminal sensible heat processing apparatus 16, terminal sensible heat processing apparatus 16 is right return air after the dehumidification carries out the temperature regulation and control and then discharges to indoor. Outdoor new trend is through heating the back, reaches the heat demand of solid absorption runner 1 passes through in proper order again discharge behind solid dehydrating unit 1's regeneration zone 102 and the solution regenerating unit 15, through utilizing outdoor new trend to absorb moisture solution and solid absorption runner 1 regeneration, regeneration zone 102 after the regeneration becomes dehumidification district 101 and rotates to the dehumidification side and carry out the dehumidification, and dehumidification district 101 rotates to the regeneration side and carries out the regeneration simultaneously, so the rotation cycle. And the solution regenerating device 15 is used for regenerating under the action of the heating fresh air and then supplying the solution dehumidifying device to continuously dehumidify, and the circulation is carried out, so that the continuous deep dehumidification of the system is realized.
The composite type deep dehumidification air treatment system provided by the invention combines the high energy efficiency of a solution dehumidification treatment method and a solid moisture absorption method to carry out independent deep humidity treatment, and realizes the deep dehumidification requirement required by industrial production environments such as storage, food and electronics. The sensible heat treatment device 16 is used for realizing the sensible heat treatment of air, realizing the temperature control requirement and further realizing an independent control system of temperature and humidity. The regeneration side regenerates the moisture absorption solution and the solid adsorption rotating wheel by utilizing outdoor fresh air, and further realizes the continuous dehumidification of the solution dehumidifying device 14 and the solid dehumidifying device 1.
Further, the composite deep dehumidification air treatment system provided by the embodiment of the invention further includes a solution heat pump circulation device, which is used for transferring part of heat absorbed in the dehumidification process of the solution dehumidification device 14 to the solution regeneration device 15 for solution regeneration, and the other part of heat is used for heating the fresh air.
The solution heat pump circulating device comprises a first compressor 2, a first condenser 31, a second condenser 32, a first throttle valve 4 and a first evaporator 5, wherein the first evaporator 5 is used for cooling the solution in the solution dehumidifying device 14 so as to meet the cold requirement in the dehumidifying process; the first condenser 31 is used for heating the solution in the solution regenerating device 15 to meet the heat requirement in the dehumidification process; the second condenser 32 is used for preheating fresh air by using part of condensation heat of the solution heat pump circulation, so that the regenerated air meets the regeneration temperature requirement required by the solid moisture absorption rotating wheel, the energy consumption required by the air treatment process is reduced, and the efficient air treatment process is realized. The first compressor 2, the first condenser 31, the second condenser 32, the first throttle valve 4 and the first evaporator 5 constitute a first loop system.
It should be noted here that the solution heat pump cycle device may be configured not to include the second condenser 32, the first condenser 31 may only use the generated heat for the regeneration of the solution in the solution regeneration device, and the preheating of the fresh air may be performed by another heat source, so as to meet the requirements of the solid moisture absorption runner 1 and the heat regenerated by the solution regeneration device. However, in order to improve energy efficiency and reduce heat loss, it is preferable to include both the first condenser 31 and the second condenser 32 in the present invention.
The solution regeneration device 15 comprises a first solution circulating pump 71, the solution dehumidifying device 14 comprises a second solution circulating pump 72, and the first solution circulating pump 71 is used for pumping out the solution in the solution regeneration device 15, exchanging heat with the first condenser 31 and then returning the solution to the solution regeneration device 15; the second solution circulating pump 72 is used for pumping the solution in the solution dehumidifying apparatus 14, exchanging heat with the first evaporator 5, and returning the solution to the solution dehumidifying apparatus 14. Specifically, the first solution circulating pump 71 pumps the solution in the solution regenerating device 15 to exchange heat with the first condenser 31, so as to meet the requirement of cooling capacity of the solution dehumidifying device, and the second solution circulating pump 72 pumps the solution in the solution dehumidifying device 14 to exchange heat with the first evaporator 5, so as to meet the requirement of heat capacity of the solution regenerating device.
Further, the compound deep dehumidification air treatment system provided by the invention further comprises an air side heat pump circulation device, wherein the air side heat pump circulation device comprises a second compressor 10, a third condenser 11, a second throttle valve 12 and a second evaporator 13, the output end of the second evaporator 13 is communicated with the input end of the solution dehumidification device 14, the second evaporator 13 is used for condensing and dehumidifying the return air, and the third condenser 11 is communicated with the second condenser 32 and is used for heating the fresh air.
The dehumidification side processes indoor return air and sends the indoor return air into a room, the return air firstly flows through a second evaporator 13 of the air side heat pump circulating device to be condensed and dehumidified, moisture in the air is changed into condensed water to be separated out, the dehumidification process of the air is realized, meanwhile, part of cold quantity requirements in the dehumidification process are met, meanwhile, heat generated in the condensation and dehumidification process is transmitted to a third condenser, and 11 is used for heating fresh air; the return air then passes further through the solution dehumidifier 14 for further dehumidification, bringing the moisture content of the air to a lower level; and then the return air further flows through the dehumidification area 101 of the solid adsorption rotating wheel 1, so that the return air is subjected to deep dehumidification treatment, and the deep dehumidification requirement is realized. Adopt condensation dehumidification, solution dehumidification and moisture absorption runner dehumidification to carry out humidity step and handle, full play various dehumidification forms efficiency advantage between different humidity intervals, improved the efficiency situation of system greatly, realize the demand of degree of depth dehumidification.
Meanwhile, the air side heat pump circulating device utilizes the second evaporator 13 of the heat pump circulation to condense and dehumidify the return air, so that the cold quantity requirement in the condensation and dehumidification process is met; the third condenser 11 of the heat pump cycle is used for preheating the regenerated air at the fresh air inlet, so that the regenerated air meets the regeneration temperature requirement required by the solid adsorption rotating wheel 1, and the energy efficiency of the system is improved.
It should be noted that the end sensible heat treatment device 16 may implement air cooling or heating through an external cold source or heat source; the cooling source or the heating source can be provided for cooling or heating the air by bypassing the evaporation heat or the condensation heat generated by the second evaporator 13 or the third condenser 11 of the built-in air-side heat pump circulation device. If the final sensible heat treatment device 16 performs final cooling or heating on the air to be treated in a form of providing a cold source or a heat source by splitting evaporation heat or condensation heat generated by the second evaporator 13 or the third condenser 11 of the built-in air side heat pump circulation device, the final sensible heat treatment device 16 does not need to be externally connected with an additional cold source, and can meet the cold source requirement required by temperature treatment regeneration only by the built-in heat pump circulation, so that the deep dehumidification air conditioning system can realize independent treatment processes of high efficiency temperature, humidity and cleanliness only by the built-in heat pump circulation without being externally connected with an additional cold source system.
In order to heat the fresh air to meet the heat requirement of the regeneration zone 102 of the solid adsorption rotating wheel 1, the composite type deep dehumidification air treatment system provided by the invention further comprises a heating device, wherein the heating device comprises a first sensible heat recoverer 81, the first sensible heat recoverer 81 is used for preheating the fresh air, the fresh air enters the second condenser 32 and the third condenser 11 through the first sensible heat recoverer 81, reaches the heat requirement of the solid adsorption rotating wheel 1 and the solution regeneration device 15, and then passes through the regeneration zone 102 and the solution regeneration device 15 in sequence and is discharged.
In order to reduce the temperature of the fresh air discharged after being used for regeneration, the fresh air recovery device further comprises a second sensible heat recoverer 82, the fresh air enters the second sensible heat recoverer 82 through the solution recovery device 15 to be cooled and then is discharged, and the first sensible heat recoverer 81 and the second sensible heat recoverer 82 form a heat circulation loop. The second sensible heat recoverer 82 is arranged, and meanwhile, the second sensible heat recoverer 82 is communicated with the first sensible heat recoverer 81, so that the heat of fresh air can be recycled, and the low-temperature or isothermal discharge of the fresh air is realized.
The heating device can also be arranged to comprise an electric heater 9, the electric heater 9 is used for heating the fresh air, and the fresh air is discharged after passing through the first sensible heat recoverer 81, the second condenser 32, the third condenser 11, the electric heater 9, the regeneration area 102, the solution recovery device 15 and the second sensible heat recoverer in sequence. If the temperature of the fresh air does not reach the air temperature required by the regeneration of the solid adsorption rotating wheel 1, the required residual heat is supplemented by electric heating, and the air temperature required by the regeneration of the solid adsorption rotating wheel is reached. If the air passing through the condenser 11 reaches the air temperature required by the regeneration of the solid adsorption rotating wheel, the electric heater 9 is not used, and the heat quantity required to be provided by the electric heater 9 can be greatly reduced by utilizing the air side heat pump circulating system, so that the high efficiency and the energy saving are realized.
It should be noted that the positions of the second condensing unit 32 and the third condensing unit 11 can be interchanged, and both of the two modes are within the scope of the present invention.
Preferably, the composite type deep dehumidification air treatment system provided by the invention further comprises a solution heat recoverer 6, wherein the solution heat recoverer 6 is arranged on a solution circulation loop formed between the solution dehumidification device 14 and the solution regeneration device 15 and is used for recovering heat generated by solution circulation.
The working principle of the composite type deep dehumidification treatment system provided by the invention is as follows:
after return air enters the system, the return air firstly passes through a first evaporator 13 of an air side heat pump circulating device to realize cooling and dehumidification, and water vapor in the air is condensed into condensed water to be discharged out of the system to realize a first-stage dehumidification process; the return air is then further dehumidified by the solution dehumidifier 14; the return air is further processed through a dehumidification area 101 of the solid adsorption rotating wheel 1, so that deep dehumidification is realized, and the humidity processing requirement is met; then the air passes through a sensible heat treatment device 16, and the treated air is subjected to final-stage cooling or heating according to different indoor air supply temperature requirements, so that the air supply temperature requirements are met;
the regeneration side regenerates the moisture absorption solution and the solid adsorption rotating wheel 1 by using outdoor fresh air, the outdoor fresh air firstly passes through a first sensible heat recoverer 81, a second sensible heat recoverer 82 performs sensible heat exchange with exhaust air, and the first sensible heat recoverer 81 and the second sensible heat recoverer 82 realize the preheating of the fresh air by using the heat of the exhaust air; then the fresh air passes through a second condenser 32 of the built-in solution heat pump circulating device, and further preheating of the fresh air is realized by utilizing partial condensation heat of the solution heat pump circulation; then the air passes through an air side heat pump circulating condenser 11, and the condensing heat circulated by the air side heat pump is used for heating fresh air; then the air passes through an electric heater 9, if the temperature of the fresh air does not reach the air temperature required by the regeneration of the solid adsorption rotating wheel, the required residual heat is supplemented by electric heating, and the air temperature required by the regeneration of the solid adsorption rotating wheel is reached; then the air is further processed by a regeneration area of the solid adsorption rotating wheel 1, and the regeneration of the solid adsorption rotating wheel 1 is realized; the air is then further treated by a solution regenerator 25 and regeneration of the hygroscopic solution is achieved; the exhaust air at the outlet of the solution regenerator 15 passes through the second sensible heat recoverer 82 to perform sensible heat exchange with the fresh air at the inlet of the regeneration side, so that the heat of the exhaust air is fully recovered.
The composite type deep dehumidification system provided by the invention can carry out humidity gradient processing by adopting condensation dehumidification, solution dehumidification and moisture absorption rotary dehumidification, fully exerts the energy efficiency advantages of various dehumidification modes in different humidity regions, greatly improves the energy efficiency condition of the system and realizes the requirement of deep dehumidification.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A composite type deep dehumidification air treatment system is characterized by comprising:
a solution dehumidification device;
the solution regeneration device, a solution circulation loop is formed between the solution dehumidification device and the solution regeneration device;
the solid adsorption rotating wheel is rotatably arranged on the air outlet side of the solution dehumidifying device and the air inlet side of the solution regenerating device and comprises a dehumidifying area and a regenerating area;
the tail end sensible heat treatment device is arranged on the air outlet side of the solid adsorption rotating wheel;
the indoor return air sequentially passes through the solution dehumidifying device and the dehumidifying area of the solid adsorption rotating wheel for deep dehumidification and then enters the tail end sensible heat treatment device, and the tail end sensible heat treatment device regulates and controls the temperature of the dehumidified return air and then discharges the return air to the indoor;
and the outdoor fresh air is heated and then sequentially passes through the regeneration zone of the solid adsorption rotating wheel and the solution regeneration device and is discharged.
2. A hybrid deep dehumidifying air processing system according to claim 1, further comprising a solution heat pump cycle for transferring heat generated during dehumidification by the solution dehumidifying apparatus to the solution regenerating apparatus for regeneration of the solution.
3. A hybrid deep dehumidification air handling system as set forth in claim 2, wherein said solution heat pump cycle comprises a first compressor, a first condenser, a first throttle valve, and a first evaporator, said first evaporator being for cooling the solution within said solution dehumidification device, said first condenser being for heating the solution within said solution regeneration device, said first compressor, first condenser, first throttle valve, and first evaporator comprising a first loop system.
4. A hybrid deep-dehumidification air treatment system according to claim 3, wherein said solution heat pump cycle further comprises a second condenser, said second condenser being configured to use a portion of heat generated by said solution heat pump cycle for fresh air preheating.
5. A hybrid deep-dehumidification air treatment system as set forth in claim 4, wherein said solution regeneration device comprises a first solution circulation pump, and said solution dehumidification device comprises a second solution circulation pump, said first solution circulation pump being adapted to draw a solution within said solution regeneration device out of heat exchange relationship with said first condenser and return it to said solution regeneration device; and the second solution circulating pump is used for pumping the solution in the solution dehumidifying device, exchanging heat with the first evaporator and returning the solution to the solution dehumidifying device.
6. A hybrid deep dehumidified air treatment system as claimed in claim 5, further comprising an air-side heat pump cycle including a second compressor, a third condenser, a second throttle valve and a second evaporator, the second evaporator being disposed on an air intake side of the solution dehumidifier, the second evaporator being used for condensation dehumidification of the return air, the third condenser being in communication with the second condenser for heating of the fresh air.
7. The combined type deep dehumidification air treatment system according to claim 6, further comprising a heating device, wherein the heating device comprises a first sensible heat recoverer, the first sensible heat recoverer is used for preheating the fresh air, and the first sensible heat recoverer is arranged on air inlet sides of the second condenser and the third condenser.
8. The combined type deep dehumidification air treatment system according to claim 7, further comprising a second sensible heat recoverer, wherein the second sensible heat recoverer is arranged on an air outlet side of the solution regeneration device and used for discharging fresh air in a cooling mode, and the first sensible heat recoverer and the second sensible heat recoverer form a heat circulation loop.
9. The combined type deep dehumidification air treatment system according to claim 8, wherein the heating device further comprises an electric heater, the electric heater is used for heating the fresh air, and the fresh air is discharged after passing through the first sensible heat recoverer, the second condenser, the third condenser, the electric heater, the regeneration zone, the solution recovery device and the second sensible heat recoverer in sequence.
10. A composite type deep dehumidifying air processing system as claimed in claim 9, further comprising a solution heat recoverer provided on a solution circulation loop formed between the solution dehumidifying apparatus and the solution regenerating apparatus for recovering heat generated by the circulation of the solution.
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