CN111365799A - Water evaporation refrigeration air conditioning system based on solar energy runner dehumidification - Google Patents
Water evaporation refrigeration air conditioning system based on solar energy runner dehumidification Download PDFInfo
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- CN111365799A CN111365799A CN202010187839.6A CN202010187839A CN111365799A CN 111365799 A CN111365799 A CN 111365799A CN 202010187839 A CN202010187839 A CN 202010187839A CN 111365799 A CN111365799 A CN 111365799A
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
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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
- F24F2203/1016—Rotary wheel combined with another type of cooling principle, e.g. compression cycle
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
Abstract
The invention provides a water evaporation refrigeration air-conditioning system based on solar rotary dehumidification, and belongs to the technical field of refrigeration air-conditioning. The invention comprises an evaporation chamber, a vacuum pump, a rotary dehumidifier, a water pump, a gas storage tank, a radiator, a regenerator, a solar heat collector, a hot water tank, a water storage tank, a condensing coil and a fan, wherein the evaporation chamber is connected with the honeycomb-shaped rotary dehumidifier to realize continuous introduction of dry air, and efficient refrigeration is realized under the negative pressure controlled by the vacuum pump through an internally-contained corrugated water curtain. Compared with the traditional air conditioner, the structure is more energy-saving and environment-friendly, and the refrigerating air with higher quality is obtained. The system uses water as a refrigerating working medium, achieves the purposes of economy, environmental protection and energy conservation, realizes continuous refrigeration, and has good practical value and application prospect.
Description
Technical Field
The invention relates to the technical field of refrigeration air conditioners, in particular to a water evaporation refrigeration air conditioner system based on solar rotary dehumidification.
Background
The traditional air conditioner is mainly completed through electric energy driving, more electric energy needs to be consumed in the current requirements and development, the high influence of Freon refrigerant on the environment (ozone layer damage and greenhouse effect) and the problems of environmental protection and energy conservation of the air conditioner are also focused, and the air conditioner refrigeration technology which takes solar energy as the main driving energy and adopts natural media as circulating working media also becomes the content of modern hotspots.
The solar thermal driven refrigeration air conditioner technology is mainly divided into: the adsorption type refrigeration, the absorption type refrigeration, the dehumidification refrigeration and the injection type refrigeration have different advantages and disadvantages.
Absorption refrigeration
The solar absorption refrigeration is characterized in that liquid refrigerant liquid is evaporated and absorbs heat in an evaporator and then is changed into low-pressure steam to enter an absorber, the low-pressure steam is strongly absorbed by an absorbent, heat emitted in the absorption process is taken away by cooling water, the formed solution is pumped into a generator by a pump, the solution is heated by a heat source generated by a solar heat collector and then is evaporated to generate high-pressure steam, the high-pressure steam enters a condenser for cooling, and the dilute solution is decompressed and flows back to the evaporator to complete a refrigeration cycle.
Adsorption refrigeration
The solar solid adsorption refrigeration is to utilize solar energy or other heat source to desorb the mixture (or complex) formed by adsorbent and adsorbate in the adsorber, release high temperature and high pressure refrigerant gas to the condenser, and the condensed refrigerant liquid to the evaporator via the throttle valve. The refrigerant absorbs heat when evaporating to produce refrigeration effect, and the evaporated refrigerant gas enters the adsorption generator to be adsorbed to form new mixture (or complex) to complete the once adsorption refrigeration cycle. Of these two adsorption pairs of activated carbon/methanol and zeolite/water are most commonly used.
Dehumidification and refrigeration
The solar dehumidifying air-conditioning system is another air-conditioning mode with rich characteristics, and different from the two air-conditioning modes, the solar dehumidifying air-conditioning system can be divided into a solar solution dehumidifying air-conditioning mode and a solar solid dehumidifying air-conditioning mode.
1. Solar liquid dehumidification air conditioner: and absorbing the water vapor of the wet air into the concentrated solution under the action of a pressure gradient by utilizing the fact that the water vapor partial pressure on the surface of the concentrated solution of the dehumidifying agent is lower than the water vapor partial pressure in the wet air until the water vapor partial pressures of the two parts are balanced, and finishing the absorption process. The diluted solution after moisture absorption is regenerated by heat collected by solar energy.
2. Solar solid dehumidification air conditioner: the main structure of the rotary dehumidifier made of special composite heat-resistant material coated with solid desiccant is a working principle of a working area and a regeneration area of a continuously rotating honeycomb-shaped rotary wheel, and the main structure is respectively contacted with treated air and regenerated air, and the middle of the two areas is sealed and isolated. The conversion of the absorbed humid air and the solar heat collecting regeneration adsorbent enables the dehumidification process and the regeneration process to be performed repeatedly.
Injection type refrigeration
The jet refrigeration is that the refrigerant is condensed into liquid by steam in a condenser, the refrigerant liquid is divided into two paths, one part enters an evaporator for evaporation refrigeration through the throttling action, the other part enters a generator through a circulating pump and is changed into high-temperature and high-pressure steam which enters an ejector, the low-temperature and low-pressure refrigerant steam which passes through a nozzle and is accelerated and depressurized to inject the evaporator enters the condenser, and the steam which forms intermediate pressure through mixing and diffusion enters the condenser. The hot water which is changed into low temperature in the generator due to heat exchange enters the solar heat collector to realize refrigeration.
The conventional air conditioner ① compares to the solar air conditioner ②:
the energy consumption and the power consumption are ① > ②;
the refrigeration performance stability is ① > ②;
the cost required by economy is ② > ①;
the degree of environmental pollution is ① > ②;
the quality of the refrigerating air is ② > ①;
the simple degree of the structure of the device is ② > ①;
the current air conditioners are classified into water air conditioners and fluorine air conditioners in terms of the application of refrigerants. The water air conditioner has a common refrigeration effect, the change control of the indoor temperature is slow, but the comfort level is high, the energy is saved, and the pollution is avoided; the fluorine air conditioner has good refrigeration effect, low noise and high heat transfer efficiency, but has common comfort level, easy drying and great pollution to the environment.
The current air conditioner innovation mainly needs to break through the following similar difficulties:
1. the use of primary energy is reduced, green energy sources such as solar energy and the like are utilized more efficiently, the structure of the air conditioner is simplified, and an energy-saving air conditioning system is created.
2. The environment-friendly air-conditioning system can achieve the refrigeration effect of the fluorine air-conditioner by using pollution-free circulating medium as much as possible.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water evaporation refrigeration air-conditioning system based on solar rotary dehumidification, and the purpose of improving the refrigeration effect while not generating greenhouse gas and reducing energy consumption is achieved.
The device comprises an evaporation chamber, a vacuum pump, a rotary dehumidifier, a water pump, a gas storage tank and a radiator, a regenerator, a solar heat collector, a hot water tank, a water storage tank, a condensing coil and a fan, wherein the condensing coil is arranged above the water storage tank, a water replenishing pipe is arranged on the water storage tank, the water storage tank is connected with the water pump through a water pipe, the water pump is connected with the evaporation chamber through a water pipe, a water curtain is arranged in the evaporation chamber, the vacuum pump is arranged above the evaporation chamber, the rotary dehumidifier comprises a work drying area and an analysis regeneration area, a fan A is arranged on the left side of the work drying area, the right side of the work drying area is connected with the gas storage tank and the radiator through a water pipe, a fan B is arranged between the gas storage tank and the radiator and the evaporation chamber, the left side of the analysis regeneration area is connected with a fan C, the solar heat collector is connected with the hot water tank.
The rotary dehumidifier is a honeycomb-shaped rotary structure, and a solid desiccant is arranged in the rotary dehumidifier. The upper part of the rotary dehumidifier is a working drying area, the lower part of the rotary dehumidifier is an analysis regeneration area, and the conversion between the working drying area and the analysis regeneration area is realized through a motor and a belt.
The water curtain is a multilayer corrugated fiber lamination and is distributed in the evaporation chamber in a layered arrangement.
The evaporation chamber is internally provided with a temperature sensor, a pressure sensor and a water level detector, the water content in the evaporation chamber is controlled by a water pump and the water level detector, and the water evaporation in the evaporation chamber is controlled by a vacuum pump, the pressure sensor and the temperature sensor to obtain the mixed gas of water vapor and air.
The regenerator is filled with hot air, and the hot air flows back to the regenerator for recycling through the desorption regeneration zone and the condensing coil.
Two humidity sensors are arranged in the rotary dehumidifier, and are used for respectively measuring the humidity of gas generated in the working drying area and the analysis regeneration area, cooperating with the motor to control the generated gas, controlling the humidity of the air introduced into the evaporation chamber to be constant, and ensuring the stable refrigeration effect.
The hot water tank is connected with the auxiliary heater, and the auxiliary heater is used for heating in cooperation with the solar heat collector.
The technical scheme of the invention has the following beneficial effects:
on the basis of the structure of the absorption refrigeration air conditioner, the invention uses water as a working medium to form a loop, and designs the rotating wheel dehumidification box, so that the energy-saving air conditioner has the following technical effects:
(1) compared with the CFC refrigerant of the traditional Freon air conditioner, the water vapor is non-toxic and harmless, does not damage the ozone layer and does not discharge greenhouse gases, thereby protecting the environment.
(2) Compared with a dehumidification system of a non-Freon air conditioner, the rotary dehumidifier adopts the circulating type dehumidification-regeneration, reduces the volume of an indoor unit, has the function of switching the rotation of the dehumidification rotary wheel in the dehumidifier, improves the dehumidification efficiency and reduces the energy consumption. Meanwhile, water is more economical as a working medium compared with HFC refrigerant.
(3) The traditional water curtain air conditioner is difficult to dehumidify, needs a semi-open environment and is not suitable for rooms such as a living room and a bedroom. Meanwhile, the rotating wheel structure ensures continuous refrigeration and dehumidification.
Drawings
FIG. 1 is a schematic structural diagram of a water evaporation refrigeration air conditioning system based on solar rotary wheel dehumidification according to the present invention;
FIG. 2 is a schematic diagram of an evaporating chamber structure of a solar rotary dehumidification-based water evaporation refrigeration air conditioning system of the invention;
fig. 3 is a schematic structural diagram of a rotary dehumidifier of the water evaporation refrigeration air conditioning system based on solar rotary dehumidification.
Wherein: 1-a fan A, 2-a working drying area, 3-an air storage tank and a radiator, 4-a fan B, 5-an evaporation chamber, 6-a vacuum pump, 7-a water curtain, 8-a regenerator, 9-a water pump, 10-a solar heat collector, 11-a hot water tank, 12-a water storage tank, 13-a condensing coil, 14-a resolving regeneration area and 15-a fan C.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a water evaporation refrigeration air-conditioning system based on solar rotary dehumidification.
As shown in figure 1, the device comprises an evaporation chamber 5, a vacuum pump 6, a rotary dehumidifier, a water pump 9, an air storage tank and a radiator 3, a regenerator 8, a solar heat collector 10, a hot water tank 11, a water storage tank 12, a condensing coil 13 and a fan, wherein the condensing coil 13 is arranged above the water storage tank 12, a water supplementing pipe is arranged on the water storage tank 12, the water storage tank 12 is connected with the water pump 9 through a water pipe, the water storage tank 12 is connected with the regenerator 8 through an air pipe, the water pump 9 is connected with the evaporation chamber 5 through a water pipe, a water curtain 7 is arranged in the evaporation chamber 5, the vacuum pump 6 is arranged above the evaporation chamber 5, the rotary dehumidifier comprises a work drying area 2 and an analytic regeneration area 14, the fan A1 is arranged at the left side of the work drying area 2, the right side of the work drying area 2 is connected with the air storage tank and the radiator 3 through an air pipe, the fan C15 is connected with the condensing coil 13 through an air pipe, the right side of the analysis regeneration area 14 is connected with the regenerator 8, the regenerator 8 is connected with the hot water tank 11, and the solar heat collector 10 is connected with the hot water tank 11.
The rotary dehumidifier is in a honeycomb rotary structure, and the conversion between the working drying area 2 and the analysis regeneration area 14 is realized through a motor and a belt.
The water curtain 7 is a multilayer corrugated fiber lamination and is distributed in a layered arrangement to fill the evaporation chamber 5.
A temperature sensor, a pressure sensor and a water level detector are arranged in the evaporation chamber 5, the water content in the evaporation chamber 5 is controlled by a water pump 9 and the water level detector, and the water evaporation in the evaporation chamber 5 is controlled by a vacuum pump 6, the pressure sensor and the temperature sensor to obtain the mixed gas of water vapor and air.
The regenerator 8 is filled with hot air, and the hot air can flow back to the regenerator 8 through the desorption regeneration zone 14 and the condensing coil 13 through an air pipe for recycling.
Two humidity sensors are arranged in the rotary dehumidifier and used for measuring gas generated in the working drying area 2 and the analysis regeneration area 14, the gas is generated under the control of a motor, the humidity of air introduced into the evaporation chamber is controlled to be constant, and the stable refrigeration effect is ensured.
The hot water tank 11 is connected to an auxiliary heater and heats in cooperation with the solar collector 10.
The device consists of an indoor unit and an outdoor unit.
1. The indoor unit part:
comprises a vacuum pump 6, a water pump 9, a water storage tank 12, an evaporation chamber 5 and a water curtain 7, wherein the water curtain 7 is a multilayer corrugated fiber lamination and is distributed in the evaporation chamber in a layered arrangement, as shown in figure 2. The water in the water curtain 7 exchanges heat with the dry air sent by the fan B4, and the latent heat of vaporization of the water is used for realizing refrigeration to generate wet and cold air. The evaporation chamber is maintained with stable negative pressure to achieve the effect of adjusting temperature through the vacuum pump 6, the pressure sensor and the temperature sensor, and wet cold air is conveyed into the chamber. Water is pumped from the water storage tank 12 to the low-pressure evaporation chamber 5 by the water pump 9 to be evaporated and boiled, and the water level detector controls the water pump 9 to keep the water amount in the evaporation chamber 5 sufficient.
2. An outdoor unit part:
the core component is a rotary dehumidifier, the main structure of which is a honeycomb-shaped rotary wheel which rotates continuously and is made of special composite heat-resistant materials coated with solid dehumidifying agents. As shown in fig. 3, the rotor is divided into four independent working areas, namely 1/4 sectors, wherein the execution part is composed of a working drying area 2 and a resolving regeneration area 14, and further has a to-be-working area and a to-be-resolving area. After moisture is absorbed by the drying agent in the working drying area 2 to be saturated, the humidity sensor and the motor control the rotating wheel to rotate, so that the area to be worked is transferred to the working area to form the working drying area 2, and the area to be analyzed is transferred to the regeneration area to form an analysis regeneration area 14; meanwhile, the saturated working area and the regeneration area after analysis are also rotated into an area to be analyzed and an area to be operated to wait for entering the regeneration area for analysis or entering the working area for drying.
And the entire outdoor unit is divided into two parts around the two areas.
For the part of the outdoor unit working drying area 2, indoor damp and hot air enters the working drying area 2 of the rotary dehumidifier for drying through a fan A1, and then is sent into an indoor unit evaporation chamber 5 through another fan B4 by radiating heat through a gas storage tank and a radiator 3.
For the part of the outdoor unit analysis regeneration area 14, the solar heat collector 10 and the auxiliary heat source heat the hot water tank 11, the hot water in the hot water tank 11 enters the regenerator 8 through the closed pipeline and radiates heat to the regenerator 8 through the pipe wall, the air flowing into the regenerator 8 is heated and flows to the analysis regeneration area 14 of the rotary dehumidifier, the moisture of the desiccant on the rotary wheel is taken away, the dehumidification capacity of the desiccant is recovered, and the dehumidification function of the rotary wheel is maintained at a stable level.
The heated high-temperature saturated hot air from the rotary dehumidifier is condensed into water through the condensing coil 13 outdoors and then collected into the water storage tank 12, and the water is sent into the evaporation chamber 5 through the water pump 9 to realize the cyclic utilization of the water.
In practical application, the control application method of the system is as follows:
the first step of air inlet refrigeration process: the indoor dry hot air enters the evaporation chamber 5 under the action of the fan B4, the vacuum pump 6 maintains stable negative pressure in the evaporation chamber 5 to ensure that the internal water boils at a certain temperature, and the dry hot air passes through the water curtain 7 when passing through the evaporation chamber 5, wherein the water curtain has the function of ensuring that the water is evaporated more quickly. At this time, the hot dry air exchanges heat with the water vapor in the evaporation chamber 5, the hot dry air releases heat, and the water evaporates to absorb heat to reach heat balance. The mixed air and water vapor are then discharged into the room through the vacuum pump 6, and the cool and humid air enters the room, decreasing in temperature and increasing in humidity.
In the process, the gears of the vacuum pump 6 and the fan B4 need to be controlled. Firstly, the working mode of the air conditioner is judged, wherein the working mode comprises a cooling mode and a heating mode, and the process of the device is the cooling mode. And secondly, acquiring energy level coefficients of the plurality of indoor fans to determine the load coefficient of the outdoor fan according to the energy level coefficients. And then acquiring a mapping table of a preset outdoor environment temperature interval-initial gear, wherein the mapping table of the preset outdoor environment temperature interval-initial gear comprises a mapping relation between a threshold interval of a preset outdoor environment temperature value and an initial gear. In the process, the room temperature needs to be monitored in real time so as to judge the preset outdoor environment temperature interval to which the outdoor environment temperature detected in real time belongs, and therefore the corresponding initial gear is determined. And determining the gears of the fan B4 and the vacuum pump 6 according to the working mode, the load factor and the initial gear.
A second dehumidification process and a regeneration process: as the humidity in the room increases with the progress of cooling, the humidity of the circulating air increases, and the cooling effect decreases, so that the dehumidification process needs to be increased. Meanwhile, in order to recycle the drying agent, a regeneration process is required. The rotary dehumidifier realizes dehumidification and regeneration functions. The rotary wheel is driven by the motor to continuously switch between the working drying area 2 and the analysis regeneration area 14, the rotary wheel and the working drying area are respectively contacted with the processing air and the regeneration air, and the middle of the two areas is sealed and isolated. When wet air enters the working drying area 2, water molecules in the air are absorbed by the dehumidifying agent in the rotating wheel; the runner sector absorbing water molecules can be automatically transferred to the desorption regeneration area 14 for regeneration after being saturated. In the regeneration process, the solar heat collector 10 provides heat for the regenerator, the heated air enters the desorption regeneration zone 14, the moisture in the saturated desiccant is evaporated and taken away, and the dehumidification capacity of the desiccant is recovered, so that the dehumidification process and the regeneration process are performed repeatedly.
In order to ensure the orderly dehumidification and regeneration, a motor switch of the rotary dehumidifier needs to be adjusted. The motor switch is controlled by a humidity controller: the single-path condensation (humidity) control is realized, when the humidity exceeds a set value or has a condensation generation trend, a motor is automatically started, the motor and a belt drive a rotating wheel to rotate 1/4 sectors, and then the motor and the belt are automatically stopped.
The third step is a water circulation process: the heated high-temperature saturated hot air from the rotary dehumidifier is condensed into water by water vapor after passing through the condensing coil 13 outdoors, the heat is released, water drops are collected in the water storage tank 12, and the water is sent into the evaporation chamber 5 through the water pump 9, so that the water is recycled. Since water will circulate in the room and there will be little loss, water should be added to the storage tank 12 after a period of use, and therefore the water supply pipe is provided in the storage tank 12 to satisfy the water quantity. The water quantity is stable through water level monitoring. The device adopts the pressure type water level meter to control the valve at the water replenishing pipe, when the water pressure measured by the pressure type water level meter at the bottom of the water tank is less than a certain threshold value, the valve is opened, after a certain amount of water is replenished to the water storage tank 12 by the water replenishing pipe, the measured water pressure reaches a certain threshold value, and the valve is closed. Similarly, the amount of water in the evaporation chamber 5 is also detected by a pressure type water level meter, and is controlled by the water pump 9.
Reference will now be made to specific embodiments.
Example 1
A water evaporation refrigeration air-conditioning system based on solar rotary dehumidification comprises an evaporation chamber 5, a vacuum pump 6, a rotary dehumidifier, a water pump 9, a gas storage tank and radiator 3, a regenerator 8, a solar heat collector 10, a hot water tank 11, a water storage tank 12, a condensing coil 13, a fan and the like.
Firstly, setting the expected temperature to be 25 ℃ and the indoor initial temperature to be 30 ℃;
according to the initial temperature of 30 ℃, the vacuum pump 6 and the fan correspondingly select proper gears according to the temperature and the pressure, so that the evaporation chamber 5 maintains stable negative pressure.
Dry air is introduced into the evaporation chamber 5 to realize evaporation refrigeration; the negative pressure makes the evaporation refrigeration more efficient and stable.
The rotating wheel continuously operates to dehumidify and is controlled by a humidity detector at the outlet of the working drying area 2, so that the humidity of the air introduced into the evaporation chamber 5 is kept at 20% or below. When the humidity of the outlet of the working drying area 2 exceeds 20%, the motor drives the rotating wheel to rotate, the sector is replaced, and the continuous drying of the air introduced into the evaporation chamber 5 is realized.
With the continuous reduction of the indoor temperature, the vacuum pump 6 and the fan adjust the gear in real time according to the temperature and the pressure, and finally, when the temperature is reduced to 25 ℃, the system stops running. When the temperature was again raised, the above operation was repeated, maintaining the room temperature to 25 ℃.
The air conditioning system is used for refrigerating, so that the refrigerating energy consumption is low, the quality of the refrigerated air is high, and multiple effects of environmental protection are met.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a water evaporation refrigeration air conditioning system based on solar energy runner dehumidification which characterized in that: comprises an evaporation chamber (5), a vacuum pump (6), a rotary dehumidifier, a water pump (9), a gas storage tank and a radiator (3), a regenerator (8), a solar heat collector (10), a hot water tank (11), a water storage tank (12), a condensing coil (13) and a fan, wherein the condensing coil (13) is arranged above the water storage tank (12), a water replenishing pipe is arranged on the water storage tank (12), the water storage tank (12) is connected with the water pump (9) through a water pipe, the water storage tank (12) is connected with the regenerator (8) through an air pipe, the water pump (9) is connected with the evaporation chamber (5) through a water pipe, a water curtain (7) is arranged in the evaporation chamber (5), the vacuum pump (6) is arranged above the evaporation chamber (5), the rotary dehumidifier comprises a work drying area (2) and an analysis and regeneration area (14), the fan A (1) is arranged on the left side of the work drying area (2), the right side, set up fan B (4) between gas storage tank and radiator (3) and evaporating chamber (5), analysis regeneration area (14) left side links to each other with fan C (15), and fan C (15) link to each other with condensing coil (13) through the tuber pipe, and analysis regeneration area (14) right side links to each other with regenerator (8), and regenerator (8) link to each other with hot-water tank (11), and solar collector (10) link to each other with hot-water tank (11).
2. The solar rotary wheel dehumidification-based water evaporation refrigeration air-conditioning system as recited in claim 1, wherein: the rotary dehumidifier is of a honeycomb-shaped rotary structure, and a solid desiccant is arranged in the rotary dehumidifier; the upper part of the rotary dehumidifier is a working drying area (2), the lower part of the rotary dehumidifier is an analysis regeneration area (14), and the conversion between the working drying area (2) and the analysis regeneration area (14) is realized through a motor and a belt.
3. The solar rotary wheel dehumidification-based water evaporation refrigeration air-conditioning system as recited in claim 1, wherein: the water curtain (7) is a multilayer corrugated fiber lamination and is distributed in the evaporation chamber (5) in a layered arrangement.
4. The solar rotary wheel dehumidification-based water evaporation refrigeration air-conditioning system as recited in claim 1, wherein: set up temperature sensor, pressure sensor and water level detection meter in evaporating chamber (5), the water content is controlled by water pump (9) and water level detection meter in evaporating chamber (5), and the vapor and the gas mixture of air through vacuum pump (6), pressure sensor and the water evaporation of temperature sensor control evaporating chamber (5) obtain the assigned temperature.
5. The solar rotary wheel dehumidification-based water evaporation refrigeration air-conditioning system as recited in claim 1, wherein: the regenerator (8) is filled with hot air, and the hot air flows back to the regenerator (8) through the desorption regeneration zone (14) and the condensing coil (13) for recycling.
6. The solar rotary wheel dehumidification-based water evaporation refrigeration air-conditioning system as recited in claim 1, wherein: two humidity sensors are arranged in the rotary dehumidifier, and are used for respectively measuring the humidity of gas generated in the working drying area (2) and the analysis regeneration area (14), and cooperating with a motor to control the generated gas, so that the humidity of the air introduced into the evaporation chamber is controlled to be constant, and the stable refrigeration effect is ensured.
7. The solar rotary wheel dehumidification-based water evaporation refrigeration air-conditioning system as recited in claim 1, wherein: the hot water tank (11) is connected with an auxiliary heater, and the auxiliary heater is used for heating in cooperation with the solar heat collector (10).
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Cited By (1)
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| CN113623792A (en) * | 2021-08-18 | 2021-11-09 | 惠州市合之宝环境设备有限公司 | Solar indirect evaporation type dehumidification air conditioner and cooling method |
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