CN107917482B - Plane radiation air conditioning system - Google Patents
Plane radiation air conditioning system Download PDFInfo
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- CN107917482B CN107917482B CN201710346958.XA CN201710346958A CN107917482B CN 107917482 B CN107917482 B CN 107917482B CN 201710346958 A CN201710346958 A CN 201710346958A CN 107917482 B CN107917482 B CN 107917482B
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- 230000005855 radiation Effects 0.000 title claims abstract description 40
- 238000004378 air conditioning Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 339
- 238000005485 electric heating Methods 0.000 claims abstract description 21
- 238000007791 dehumidification Methods 0.000 claims description 38
- 238000007599 discharging Methods 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 abstract description 17
- 230000005494 condensation Effects 0.000 abstract description 17
- 238000005057 refrigeration Methods 0.000 abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 20
- 239000000498 cooling water Substances 0.000 description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 description 10
- 239000001569 carbon dioxide Substances 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000009826 distribution Methods 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
-
- 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
-
- 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
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a plane radiation air conditioning system, belonging to air conditioning systems, aiming at providing a plane radiation air conditioning system which controls indoor humidity or refrigeration state to reduce condensation, and the technical proposal is as follows, comprising a central control unit, an outdoor unit, a water collector, a radiation end and a dew point temperature controller; the central control machine comprises an air treatment device and a water treatment device; one loop of the water treatment device is connected with the water collector and the radiation tail end, and the other loop is connected with the outdoor unit; the water separator is provided with a first-stage protection device for controlling humidity, and the first-stage protection device comprises a valve arranged at the water outlet end of the water separator, an electric heating actuator for controlling the opening and closing of the valve and a control panel arranged in each chamber and used for detecting humidity.
Description
Technical Field
The invention relates to an air conditioning system, in particular to a plane radiation air conditioning system.
Background
The radiation air conditioning system is an air conditioning system which adjusts indoor temperature according to a radiation principle and controls and adjusts indoor humidity and air cleanliness according to fresh air. Compared with the traditional air conditioner which adjusts the indoor temperature by means of air supply, the radiation type air conditioning system has obvious advantages, specifically: the indoor air conditioner has no strong blowing sense, no noise of indoor air conditioner wall hanging machine or floor machine, indoor temperature regulation, indoor humidity control, permanent fresh and clean indoor air, energy saving operation and the like.
At present, the radiation type air conditioner in the market mainly comprises a centralized type system, wherein the centralized type radiation type air conditioner system mainly comprises an energy source preparation mode mainly comprising a large-scale centralized type cold and hot water unit, and the energy source preparation mode is conveyed to each room through a centralized water pipeline. The fresh air is also intensively treated and then is sent into each room through a concentrated air supply and return pipeline. The centralized system can also show the advantages of the radiation air conditioning system, but when fresh air is introduced, particularly in summer, the outside air can contain a large amount of water vapor, and when the outside air enters the room, the condensation phenomenon can occur, so that water drops are formed on the ceiling of the room, and the room is moist, and therefore, the fresh air needs to be dehumidified; the existing dehumidification mode is condensation dehumidification, and a compressor is added to cool to reduce the temperature, so that the outside air is dehumidified.
For example, chinese patent publication No. CN204923344U discloses a radiant air conditioning system with variable refrigerant flow, which includes a central control unit and an outdoor unit, a water separator, a radiant end and a dew point temperature controller; the central control unit is connected with the outdoor unit in series; the radiation tail end is connected with the central control machine through the water separator; the dew point temperature controller is connected with the water collecting and distributing device and is used for sensing indoor temperature and humidity changes and preventing the phenomenon that the radiation surface is likely to be condensed under the condition of wind system faults by cutting off the water circulation valve in advance.
The radiation air conditioning system prevents the phenomenon of condensation under the condition of wind system fault through the dew point temperature controller, but the indoor humidity is in a higher state when the dew point temperature controller senses the occurrence of the condensation condition, and corresponding measures can not be taken to reduce the condensation in the process of continuously increasing the humidity.
Disclosure of Invention
The invention aims to provide a plane radiation air conditioning system which is provided with a control function for controlling indoor humidity or refrigeration state so as to reduce the generation of condensation.
The technical aim of the invention is realized by the following technical scheme: a plane radiation air conditioning system comprises a central control unit, an outdoor unit, a water collector, a radiation end and a dew point temperature controller;
the central control machine comprises an air treatment device and a water treatment device;
one loop of the water treatment device is connected with the water collector and the radiation tail end, and the other loop is connected with the outdoor unit;
the air treatment device comprises a first heat exchanger, an outdoor fresh air inlet and an indoor air return opening which are arranged on the first heat exchanger, an indoor air delivery duct and an outdoor exhaust duct which are arranged below the first heat exchanger, wherein the indoor air return opening is communicated with a top surface air return opening arranged at the top of each indoor, the indoor air delivery duct is communicated with a ground air supply opening arranged at the bottom of each indoor, and the outdoor fresh air inlet and the indoor air delivery duct are communicated with one channel of the first heat exchanger; the indoor air return port and the outdoor exhaust duct are communicated with the other channel of the first heat exchanger;
the water separator is provided with a first-stage protection device for controlling humidity, the first-stage protection device comprises a valve arranged at the water outlet end of the water separator, an electric heating actuator for controlling the opening and closing of the valve and a control panel arranged in each chamber and used for detecting a humidity value, and the control panel is connected with the electric heating actuator;
an electric air valve I is arranged between the outdoor exhaust duct and the indoor air delivery duct, and an air outlet of the outdoor exhaust duct is provided with an electric air valve II;
the central control machine is internally provided with a dehumidification box, a dehumidification air duct is arranged in the dehumidification box, a dehumidification surface cooler is arranged in the dehumidification air duct, one side of the dehumidification box is communicated with an indoor air duct, and the other end of the dehumidification box is communicated with a ground air supply opening;
the indoor air return port is provided with a secondary protection device for controlling humidity, and the secondary protection device comprises indoor and outdoor temperature and humidity sensors for controlling the opening and closing states of the electric air valve I and the electric air valve II;
when the humidity of the indoor air return opening is greater than a set value, the indoor and outdoor temperature and humidity sensors control the first electric air valve to be opened and the second electric air valve to be closed;
when the indoor humidity is greater than a set value, the control panel drives the valve to be in a closed state through the electric heating actuator;
when the indoor humidity is smaller than the set value, the control panel drives the valve to be in an open state through the electric heating actuator.
By adopting the technical scheme, in summer, outdoor fresh air is pumped into the first heat exchanger to exchange heat with indoor return air, the temperature of the outdoor fresh air is regulated to be close to the room temperature, the outdoor fresh air is input into the dehumidifying box through the indoor air delivery channel to be dehumidified, the indoor fresh air is input into the room through the ground air delivery port after humidity of the fresh air is reduced, so that the humidity of indoor air can be reduced, when the humidity of the indoor air is higher, the control panel detects that the humidity value is higher than a set value, the control panel feeds back a signal to the electric heating actuator, the electric heating actuator drives the valve on the water separating and collecting device to be closed, and then the capillary tubes in the corresponding room stops conveying low-temperature water, namely refrigerating is stopped, so that the water vapor in the indoor air is not easy to condense to generate a condensation phenomenon, and when other indoor humidity does not exceed the set value, the low-temperature water in the water separating and collecting device is normally input into the corresponding room to be refrigerated; when the control panel detects that the indoor humidity value is smaller than the set value, the control panel feeds back a signal to the electric heating actuator, and the electric heating actuator drives a valve on the water separator and collector to be in an open state, so that the capillary tube in the corresponding room is led in low-temperature water to continue refrigerating. The first-stage protection device is used for controlling the refrigeration and humidity in the corresponding room, so that the phenomenon that the whole equipment stops running due to the fact that the dew point temperature controller is directly triggered is avoided. When indoor air is pumped into the indoor air return port through the top surface air return port, when the indoor and outdoor temperature and humidity sensors sense that the humidity is greater than a set value, the indoor and outdoor temperature and humidity sensors control the first electric air valve to be opened, the second electric air valve to be closed, and indoor return air is not directly discharged from the outdoor exhaust duct, but is returned to the indoor after being mixed with outdoor fresh air through the first electric air valve and then being dehumidified through the dehumidification box, so that the indoor room temperature air and the outdoor fresh air can be effectively utilized to be mixed to reduce the temperature of the outdoor fresh air, and meanwhile, the indoor air can be input into the dehumidification box again to be dehumidified, so that the indoor humidity is not easy to be excessively high, and the phenomenon of condensation occurs.
Further, the radiation end is a capillary tube, and the dew point temperature controller is arranged on the capillary tube in each chamber to serve as a three-stage protection device;
when the dew point temperature controller is triggered, the air treatment device and the water treatment device are stopped.
By adopting the technical scheme, the capillary tube has small thickness, so the occupied indoor space is small, the capillary tube can be attached to the indoor top surface, the indoor ground and the indoor side surface, and the diameter of the capillary tube is small, so the radiation area of the capillary tube can be increased, the radiation efficiency is improved, and the indoor temperature is regulated by utilizing the temperature of water in the capillary tube; when refrigerating in summer, the capillary tube is used for refrigerating the room by using the cold water which is generally used for refrigerating in the capillary tube, and the capillary tube is used as a refrigerating source and is the position with the lowest indoor temperature, so that the capillary tube is the position with the first dew condensation, the dew point temperature controller is arranged on the capillary tube and can timely feed back the dew condensation to the room, and once the dew condensation occurs, fresh air is not input into the room any more, and the cold water is not introduced into the capillary tube for refrigerating, so that the room is not easy to be condensed and is in a moist state.
Further, the capillary tube comprises a top surface capillary tube arranged at the indoor top and a ground capillary tube paved on the indoor ground, the top surface capillary tube and the ground capillary tube are both connected to the water collecting and distributing device, and the dew point temperature controller is arranged on the top surface capillary tube.
Through adopting above-mentioned technical scheme, lay the top surface capillary in indoor top, lay ground capillary on ground, make the whole temperature regulation of indoor space better to can cooperate the air supply trend of ground supply-air outlet to evenly adjust the temperature to indoor together, and be difficult for appearing the great condition of difference in temperature between the indoor different regions.
Further, the water treatment device comprises a cold and heat source water inlet pipe, a cold and heat source water outlet pipe, a second heat exchanger, a water collecting and discharging pipe and a water collecting and discharging pipe, wherein the cold and heat source water inlet pipe and the cold and heat source water outlet pipe are communicated with one loop of the second heat exchanger, and the water collecting and discharging pipe are communicated with the other loop of the second heat exchanger;
the cold and hot source water inlet pipe and the cold and hot source water outlet pipe are respectively connected with two ends of the outdoor unit, and the water collecting water outlet pipe and the water collecting water inlet pipe are respectively connected with two ends of the water collecting device.
By adopting the technical scheme, cold water and hot water generated by the outdoor unit flow into the second heat exchanger through the cold and hot source water inlet pipe, and exchange heat with water flowing into the water collecting and separating water inlet pipe through the second heat exchanger, so that the temperature of water in the water collecting and separating water inlet pipe is changed, and then the water is output from the water collecting and separating water outlet pipe into the water collecting and separating device and is distributed into each room for temperature adjustment.
Further, the water inlet end and the water outlet end of the dehumidifying surface cooler are connected to the cold and heat source water inlet pipe in parallel, the water outlet end of the dehumidifying surface cooler is arranged at one end, close to the second heat exchanger, of the cold and heat source water inlet pipe, and the water inlet end of the dehumidifying surface cooler is connected with the cold and heat source water inlet pipe through the first three-way valve.
By adopting the technical scheme, the cooling water input from the cold and hot source water inlet pipe is switched through the first three-way valve, the part of cooling water is firstly introduced into the dehumidifying surface cooler from the water inlet end, the dehumidifying surface cooler cools the outdoor air, so that the water vapor contained in the outdoor air is condensed down to achieve the aim of dehumidification, then the cooling water is input into the second heat exchanger from the water outlet end and exchanges heat with the heated water brought back from the indoor by the water collecting and separating water inlet pipe, the temperature of the water in the water collecting and separating water inlet pipe is reduced, and then the cooling water is input into the indoor from the water collecting and separating water outlet pipe to cool the indoor; the dehumidifying process reasonably utilizes the cooling water in the cold and heat source water inlet pipe as the cold source of the dehumidifying surface cooler, does not need to additionally increase a compressor to increase the power consumption, and saves the waste of energy.
Further, the interior of the dehumidification box is provided with a heating surface cooler, the water inlet end and the water outlet end of the heating surface cooler are both connected to the water collecting and separating inlet pipe, the water outlet end of the heating surface cooler is arranged at one end of the water collecting and separating inlet pipe, which is close to the second heat exchanger, the water inlet end of the heating surface cooler is connected with the water collecting and separating inlet pipe through a three-way valve II, and the heating surface cooler is arranged at one side, far away from the air treatment box, of the dehumidification surface cooler.
By adopting the technical scheme, the water which is close to the room temperature and is subjected to heat radiation with the room is returned to the water collecting and water inlet pipe, is introduced into the heating surface cooler through the switching of the three-way valve II, air becomes cold air after passing through the dehumidifying surface cooler, and the temperature of the cold air can be increased to be close to the room temperature after the cold air contacts with the heating surface cooler, so that the influence on the indoor temperature is reduced after the cold air is introduced into the room.
Furthermore, a precooling surface cooler is further arranged in the dehumidification box and connected in series with the water outlet end of the heating surface cooler, the precooling surface cooler is arranged on one side, far away from the heating surface cooler, of the dehumidification surface cooler, and the output end of the precooling surface cooler is connected to the diversity water inlet pipe.
By adopting the technical scheme, the temperature of the water close to the room temperature in the temperature-rising surface cooler is reduced by contacting with cold air, and then the reduced water is input into the precooling surface cooler, so that the precooling surface cooler is used for precooling and dehumidifying the air, and on one hand, the dehumidifying effect can be improved; on the other hand, the heat loss of the dehumidifying surface cooler in the dehumidifying process can be reduced.
Further, a proportional integral valve is connected between the water collecting and discharging pipe and the water collecting and discharging pipe, a temperature sensor is arranged at the water outlet of the water collecting and discharging pipe, and the temperature sensor is connected with the proportional integral valve.
By adopting the technical scheme, when the temperature sensor senses that the temperature of water in the water collecting and discharging pipe is higher than a set value, the proportional integral valve gathers more water in the water collecting and discharging pipe into the water collecting and discharging pipe, so that the temperature of water in the water collecting and discharging pipe is reduced; when the temperature sensor senses that the temperature of water in the water distribution and collection water outlet pipe is lower than a set value, the proportional integral valve reduces the water quantity flowing into the water distribution and collection water outlet pipe in the water distribution and collection water inlet pipe, and then the temperature of water after the water distribution and collection water outlet pipe is mixed is improved; the temperature which enters the room for adjustment can be controlled more timely and efficiently by the arrangement of the proportional integral valve.
Further, the water collecting and discharging pipe is connected with a water pump, the water outlet end section of the water pump is connected with an explosion-proof valve, and the explosion-proof valve is provided with an expansion tank.
By adopting the technical scheme, the water in the water collecting and discharging pipe is output by the water pump acting, the expansion tank can share the pressure when the water pressure caused by temperature change changes, and the explosion-proof valve can be opened to release the pressure when the pressure of the expansion tank reaches the peak value, so that the expansion tank or the water collecting and discharging pipe is prevented from being broken.
Further, the indoor air return opening is provided with an exhaust centrifugal fan, and the indoor air supply opening is provided with an air supply centrifugal fan.
By adopting the technical scheme, the air exhausting centrifugal fan is arranged at the indoor air return port, so that indoor air can be forcefully pumped out for timely replacement; the air supply centrifugal fan is arranged at one side of the indoor air supply opening, so that the air supply centrifugal fan is far away from the outdoor fresh air inlet, the pumping force of the outdoor fresh air is reduced, the outdoor fresh air cannot enter under strong pumping force, and the suction amount of impurities in the air is reduced; meanwhile, when the air is exhausted, the output air of the air supply centrifugal fan can quickly enter the room, so that the indoor air can be quickly replaced.
In summary, the invention has the following beneficial effects:
the control panel detects the humidity in each room and controls the valve by the electric heating actuator, so that the refrigerating condition in each room is controlled, and dew condensation is not easy to generate when the humidity is high;
the indoor and outdoor temperature and humidity sensor detects the integral humidity of the indoor air return port, when the humidity is high, the indoor air is dehumidified and returned to the indoor, so that the indoor air is dehumidified further on the basis of original air, the dehumidification effect is better, the required humidity range is more easily reached, and the indoor dew is not easy to generate;
when the first-level protection device and the second-level protection device are invalid, the dew point temperature controller can stop the whole equipment when sensing that dew condensation occurs, so that fresh air input and refrigeration are stopped, and dew is not easy to occur indoors;
cooling water in the cold and heat source water inlet pipe is firstly introduced into the dehumidifying surface cooler to dehumidify air, the cooling water in the cold and heat source water inlet pipe is reasonably utilized as a cold source of the dehumidifying surface cooler, an additional compressor is not required to be added to increase power consumption, and the waste of energy sources is saved;
the heating surface cooler and the precooling surface cooler also reasonably utilize the water close to room temperature in the water collecting and water inlet pipe to precool, dehumidify and heat the air entering the room in advance, and fully utilize energy sources.
Drawings
FIG. 1 is a schematic diagram showing the connection relationship between a central controller of a planar radiation air conditioner and a water collector and capillary in the embodiment;
FIG. 2 is a schematic view showing the structure of the water treatment tank, the air treatment tank and the dehumidifying tank combined in this embodiment;
fig. 3 is a schematic view showing the internal structure of the water treatment tank, the air treatment tank and the dehumidifying tank in the present embodiment;
FIG. 4 is a schematic view showing the back surface structure of the water treatment tank, the air treatment tank and the dehumidifying tank used in the embodiment of FIG. 3;
FIG. 5 is a schematic view showing the internal structures of the water treatment tank and the dehumidifying tank according to the present embodiment;
FIG. 6 is a schematic diagram showing the connection relationship between the water pump and the water collecting and discharging pipes in the present embodiment;
fig. 7 is a schematic view of a structure for embodying the water dividing and collecting device in the present embodiment.
In the figure, 1, an air treatment box; 11. a first heat exchanger; 12. outdoor fresh air inlet; 13. an indoor air return port; 131. an exhaust centrifugal fan; 132. a carbon dioxide sensor; 133. a top surface air return port; 134. indoor and outdoor temperature and humidity sensors; 14. an indoor air delivery duct; 141. an electric air valve III; 15. an outdoor exhaust duct; 151. an electric air valve II; 16. a partition plate; 161. an electric air valve I; 2. a water treatment tank; 21. a second heat exchanger; 22. a cold and hot source water inlet pipe; 221. a first three-way valve; 23. a cold and hot source water outlet pipe; 231. an energy storage water tank; 24. a water collecting and discharging pipe; 241. a water pump; 242. an explosion-proof valve; 243. an expansion tank; 25. a water collecting and feeding pipe; 251. a three-way valve II; 26. a proportional-integral valve; 261. a temperature sensor; 3. a dehumidifying box; 31. a dehumidifying air duct; 311. precooling a surface cooler; 312. a dehumidifying surface cooler; 313. a heating surface cooler; 32. a windless channel; 321. an indoor air supply port; 3211. a centrifugal fan for air supply; 3212. a ground air supply port; 33. a water receiving tray; 331. a drainage pipe; 4. a water separator-collector; 41. a capillary tube; 411. a top capillary; 412. a ground capillary; 42. a valve; 43. an electric heating actuator; 44. a control panel; 45. a dew point temperature controller; 5. an air source/ground source heat pump; 6. a gas-fired boiler; 7. a branch pipe; 71. a first check valve; 8. a water supplementing valve; 81. a pipe; 82. and a second check valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
A planar radiation air conditioning system, as shown in figure 1, comprises a central control unit, an outdoor unit, a water separating and collecting device 4, a radiation end and a dew point temperature controller 45, a top surface air return 133 arranged at the top of each indoor and a ground air supply 3212 arranged at the bottom.
As shown in fig. 2, the central control machine includes an air treatment tank 1, a water treatment tank 2 and a dehumidifying tank 3, the water treatment tank 2 is installed above the dehumidifying tank 3 and the air treatment tank 1 is disposed at one side of the dehumidifying tank 3, and the air treatment tank 1, the water treatment tank 2 and the dehumidifying tank 3 constitute a rectangular parallelepiped. An air treatment device is provided in the air treatment tank 1, and a water treatment device is provided in the water treatment tank 2.
As shown in fig. 3, the air treatment device comprises a first heat exchanger 11 arranged in an air treatment box 1, an outdoor fresh air inlet 12 communicated with the outside is arranged on the left side above the first heat exchanger 11, and an indoor return air inlet 13 communicated with a top surface return air inlet 133 is arranged on the right side; an outdoor exhaust duct 15 is arranged on the left side below the first heat exchanger 11, an indoor air delivery duct 14 is arranged on the right side, an outdoor fresh air inlet 12 and an indoor air return opening 13 are isolated from each other through a partition plate 16 in the air treatment box 1, the indoor air delivery duct 14 and the outdoor exhaust duct 15 are communicated with one loop of the first heat exchanger 11, the indoor air return opening 13 and the outdoor air delivery duct 15 are communicated with the other loop of the first heat exchanger 11, and in the embodiment, the first heat exchanger 11 is a total heat recovery core; an exhaust centrifugal fan 131 is provided at the indoor return air opening 13, and the exhaust centrifugal fan 131 can suck indoor air into the indoor return air opening 13.
As shown in fig. 3, the water treatment device includes a second heat exchanger 21, a cold and heat source water inlet pipe 22, a cold and heat source water outlet pipe 23, a water diversion and collection water outlet pipe 24, and a water diversion and collection water inlet pipe 25, wherein the cold and heat source water inlet pipe 22, the cold and heat source water outlet pipe 23 and the water diversion and collection water outlet pipe are communicated with one loop of the second heat exchanger 21, the water diversion and collection water outlet pipe 24 and the water diversion and collection water outlet pipe 24 are communicated with the other loop of the second heat exchanger 21, wherein one end of the cold and heat source water inlet pipe 22 far away from the second heat exchanger 21 is used for being connected with an outdoor unit for providing a cold source or a heat source, such as an air source/ground source heat pump 5 and a gas boiler 6, the water of the water diversion and collection water outlet pipe 24 is output to the water diversion and collection water pipe 4, and is output to a radiation end in each room by the water diversion and collection water pipe 4 for radiation to adjust the temperature, in this embodiment, the radiation end is a capillary 41, and then the water in the capillary 41 is back into the water diversion and collection water inlet pipe 25 is subjected to heat exchange heat with medium in the cold and heat source water diversion and collection water pipe 22 after heat exchange.
As shown in fig. 1 and 7, in the present embodiment, the capillary 41 includes a top capillary 411 disposed at the top of the room and a ground capillary 412 laid on the ground of the room, the top capillary 411 and the ground capillary 412 are both connected to the water collector 4, valves 42 are provided at positions where the water collector 4 is connected to input ends of the top capillary 411 and the ground capillary 412, electrothermal actuators 43 are provided on the valves 42, a control panel 44 for detecting a humidity value is provided in each room, and each control panel 44 is connected to the corresponding electrothermal actuator 43. When the indoor humidity is greater than the set value, the control panel 44 drives the valve 42 to be in a closed state through the electric heating actuator 43; when the indoor humidity is less than the set value, the control panel 44 drives the valve 42 to be in an open state through the electric heating actuator 43. The dew point temperature controller 45 is arranged on the top capillary 41, the dew point temperature controller 45 is connected with the main power supply of the equipment, and when the dew point temperature controller 45 is triggered, the whole equipment stops running.
As shown in fig. 3 and 5, in order to better control the temperature input into the capillary tube 41, a proportional integral valve 26 is connected between the diversity water outlet pipe 24 and the diversity water inlet pipe 25, and a temperature sensor 261 for controlling the proportional integral valve 26 is provided at the water outlet position of the diversity water outlet pipe 24; in order to simultaneously use a plurality of different devices for providing cold sources or heat sources, at least two branch pipes 7 are arranged on the cold source water inlet pipe 22, a one-way valve I71 is arranged on each branch pipe 7, the conduction direction of the one-way valve I71 is the direction towards the second heat exchanger 21, in the embodiment, an air source/ground source heat pump 5 and a gas boiler 6 are simultaneously adopted, the air source/ground source heat pump 5 is connected to the cold source water inlet pipe 22, one end of the cold source water outlet pipe 23, which is far away from the second heat exchanger 21, is connected with an energy storage water tank 231, and the energy storage water tank 231 is connected with the air source/ground source heat pump 5; the branch pipe 7 of the cold and heat source water inlet pipe 22 and the cold and heat source water outlet pipe 23 are connected with the gas boiler 6.
As shown in fig. 5 and 6, a water pump 241 is connected to the output end of the water collecting and discharging pipe 24, an explosion-proof valve 242 is connected to the output end of the water pump 241, an expansion tank 243 is connected to the explosion-proof valve 242, and the output end of the explosion-proof valve 242 is directly connected to the input end of the water collecting and discharging pipe 4.
As shown in fig. 3, a dehumidifying air duct 31 is provided in the dehumidifying casing 3, the dehumidifying air duct 31 is provided transversely, one end of the dehumidifying air duct 31 communicates with the indoor air supply duct 14, the other end of the dehumidifying air duct is an indoor air supply port 321, and the indoor air supply port 321 supplies air to the indoor space directly. An air-supply centrifugal fan 3211 is provided at the indoor air-supply port 321, and the air-supply centrifugal fan 3211 can draw in fresh air from the outdoor fresh air intake 12 and send the fresh air into the room through the indoor air-supply port 321.
As shown in fig. 3, a U-shaped dehumidifying surface cooler 312 is disposed at the top of the dehumidifying tank 3, the water inlet and outlet ends of the dehumidifying surface cooler 312 are connected to the cold and heat source water inlet pipe 22, the water outlet end of the dehumidifying surface cooler 312 is disposed at the end of the cold and heat source water inlet pipe 22 near the second heat exchanger 21, and the water inlet pipe of the dehumidifying surface cooler 312 is connected to the cold and heat source water inlet pipe 22 through a three-way valve 221.
As shown in fig. 3, a pre-cooling surface cooler 311 is disposed on the left side of the dehumidifying surface cooler 312 and a heating surface cooler 313 is disposed on the right side of the dehumidifying box 3, the water inlet end of the heating surface cooler 313 and the water outlet end of the pre-cooling surface cooler 311 are both connected to the water collecting and supplying pipe 25, the water outlet end of the heating surface cooler 313 is connected to the water inlet end of the pre-cooling surface cooler 311, and the water outlet end of the pre-cooling surface cooler 311 is connected to the end of the water collecting and supplying pipe 25 near the second heat exchanger 21, and the water inlet end of the heating surface cooler 313 is connected to the water collecting and supplying pipe 25 through a three-way valve two 251.
As shown in fig. 5, there is a loss of a part of water during the water treatment, a water supplementing valve 8 connected with a municipal water pipe is provided in the dehumidifying tank 3, an input port of the water supplementing valve 8 is connected with the municipal water pipe, and an output port of the water supplementing valve is provided with two pipelines 81 and connected to the cold heat source water outlet pipe 23 and the water collecting water outlet pipe 24 respectively, so that water is supplemented in the cold heat source water outlet pipe 23 and the water collecting water outlet pipe 24 to ensure that enough water is subjected to heat exchange and heat radiation. In order to prevent the water in the apparatus from flowing back into the municipal water pipe, the two check valves 82 are provided on the pipes 81.
As shown in fig. 3 and 4, a water receiving tray 33 is provided inside the dehumidifying case 3 below the dehumidifying surface cooler 312, and a drain pipe 331 connected to the outside of the dehumidifying case 3 is provided at one side of the water receiving tray 33. A choke-free passage 32 is formed in the dehumidification tank 3 below the water receiving tray 33, and one end of the choke-free passage 32 communicates with the indoor air supply duct 14 and the other end communicates with the indoor air supply port 321. An electric air valve three 141 is arranged between the dehumidifying air duct 31 and the windless air duct 32 in the indoor air duct 14, and when the electric air valve three 141 is closed, the air in the indoor air duct 14 cannot pass through the windless air duct 32. In order to realize the internal circulation of the indoor air, a first electric air valve 161 is arranged between the indoor air delivery duct 14 and the outdoor air exhaust duct 15, the first electric air valve 161 is positioned above the third electric air valve 141, and a second electric air valve 151 for closing the outdoor air exhaust duct 15 is arranged at the air outlet position of the outdoor air exhaust duct 15, namely, on the side wall of the air treatment box 1.
As shown in fig. 3, the indoor air return opening 13 is provided with an indoor and outdoor temperature sensor 261, the signals of the indoor and outdoor temperature sensor 261 are controlled by the first electric air valve 161 and the second electric air valve 151, and when the humidity of the indoor air return opening 13 is greater than a set value, the indoor and outdoor temperature sensor 134 controls the first electric air valve 161 to be opened and the second electric air valve 151 to be closed.
As shown in fig. 3, in order to prevent the carbon dioxide content of the indoor air from becoming too high, a carbon dioxide sensor 132 is provided at the position of the indoor air return opening 13, and the signals of the carbon dioxide sensor 132 are fed back to the electric damper two 151 and the electric damper one 161.
The specific implementation process comprises the following steps: dehumidification and refrigeration in summer are taken as examples for illustration. The gas boiler 6 does not operate because of the cooling state. Cooling water (assumed to be 7 ℃) generated by the air source/ground source heat pump 5 is input from the cold/hot source water inlet pipe 22, at this time, the three-way valve one 221 introduces the cooling water introduced into the cold/hot source water inlet pipe 22 into the dehumidifying surface cooler 312, flows back into the cold/hot source water inlet pipe 22 after flowing through the dehumidifying surface cooler 312 (assumed to be 10 ℃) and then flows into the first heat exchanger 11 to exchange heat with water (assumed to be 22 ℃) flowing in the water diversion and collection water inlet pipe 25, so that the temperature of the water in the water diversion and collection water inlet pipe 25 is reduced, then is input into the water pump 241 from the water diversion and collection pipe 24, the water is input into the water diversion and collection pipe 4 through the explosion-proof valve 242 by the action of the water pump 241, then the water is distributed into the top surface capillary 411 and the ground capillary 412 in each room by the water diversion and collection pipe 4, the temperature in the room is adjusted by the top surface capillary 411 and the ground capillary 412, and the water in the top surface capillary 411 and the room temperature are subjected to heat exchange, and then flows back from the water diversion and collection water inlet pipe 25 into the second heat exchanger 21 again to perform continuous heat exchange circulation. When the temperature sensor 261 in the water collecting and discharging pipe 24 senses that the temperature is lower in the summer in a refrigerating state, the proportional integral valve 26 is controlled to increase the amount of water in the water collecting and discharging pipe 25 entering the water collecting and discharging pipe 24, so that the temperature output to the water collecting and discharging device 4 is increased through the water in the water collecting and discharging pipe 25; in contrast, when the temperature sensor 261 senses that the temperature is high, the proportional integral valve 26 is controlled to reduce the amount of water flowing into the separate water inlet pipe 25 and the separate water outlet pipe 24, thereby reducing the temperature of the water. Due to the arrangement of the three-way valve II 251 on the water collecting and distributing water inlet pipe 25, the water returned from the capillary tube 41 is sequentially introduced into the temperature-rising surface cooler 313 and the precooling surface cooler 311 under the action of the three-way valve II 251, then flows back into the water collecting and distributing water inlet pipe 25, and is introduced into the second heat exchanger 21. When the control panel 44 detects that the indoor humidity is higher than the set value, the control panel 44 feeds back a signal to the electric heating actuator 43, and the electric heating actuator 43 drives the valve 42 on the water separating and collecting device 4 to be closed, so that the top capillary 411 and the ground capillary 412 in the corresponding indoor are stopped to convey low-temperature water, namely, refrigeration is stopped, so that water vapor in the indoor air is not easy to condense to generate a condensation phenomenon, and when other indoor humidity does not exceed the set value, the low-temperature water in the water separating and collecting device 4 is normally input into the corresponding indoor to perform refrigeration; when the control panel 44 detects that the indoor humidity value is smaller than the set value (assuming that the set value is 70%), the control panel 44 feeds back a signal to the electric heating actuator 43, and the electric heating actuator 43 drives the valve 42 on the water separator-collector 4 to be in an open state, so that the top capillary 411 and the ground capillary 412 in the corresponding indoor are led in low-temperature water to continue refrigerating.
The air treatment process comprises the following steps:
first case: the first electric air valve 161 is in a closed state, the second electric air valve 151 is in an open state, and the third electric air valve 141 is in a closed state. The exhaust centrifugal fan 131 starts to work, so that indoor cold air (assumed to be 20 ℃) is pumped into the indoor air return opening 13 and then is exhausted from the outdoor exhaust duct 15 through the first heat exchanger 11, and the exhaust centrifugal fan 131 is arranged at the indoor air return opening 13, so that the indoor air can be forcefully pumped out for timely replacement; meanwhile, the air supply centrifugal fan 3211 works so as to enable the interior of the dehumidifying air duct 31 to be in negative pressure, and further generate negative pressure for the outdoor fresh air inlet 12, so that external air (assumed to be 30 ℃) can enter the air treatment box 1 from the outdoor fresh air inlet 12, then is sequentially discharged into the dehumidifying box 3 from the indoor air supply duct 14 through the other channel of the first heat exchanger 11, when outdoor fresh air passes through the first heat exchanger 11, the outdoor fresh air has higher temperature relative to indoor air, so that heat exchange can be carried out between the outdoor fresh air and indoor cold air in the first heat exchanger 11, the temperature of the outdoor fresh air is reduced (assumed to be 22 ℃) after the temperature is reduced, cold air to be discharged is fully utilized, and because the electric air valve one 161 and the electric air valve three 141 are in a closed state, the outdoor fresh air is directly and completely introduced into the dehumidifying air duct 31, the introduced fresh air is contacted with the precooling surface cooler 311, the water (the temperature is 13 ℃) in the precooling surface cooler 311 performs precooling dehumidification on the air, so that the temperature of a part of fresh air is reduced (the temperature of the fresh air is 16 ℃ after the fresh air is reduced at the moment), then the fresh air is contacted with the dehumidifying surface cooler 312, and the fresh air is contacted with the dehumidifying surface cooler 312 through cooling water (7 ℃) so that condensation can be condensed when the fresh air is contacted with the dehumidifying surface cooler 312, the condensed water drops fall on the water receiving disc 33 and are discharged out of the dehumidifying box 33 through the water discharging pipeline 331, the fresh air is dehumidified, the dehumidified fresh air (10 ℃) is contacted with the heating surface cooler 313, since the water (20 ℃) in the temperature rising surface cooler 313 is cooled (13 ℃) after the temperature of the air passing through the dehumidifying surface cooler 312 is raised, the temperature of the water in different position areas is reasonably utilized in such a way, the energy is fully utilized, and the fresh air is dehumidified by preferentially utilizing the cooling water, so that the use of a compressor is reduced by reasonably utilizing the cold source of the water treatment. When the indoor and outdoor temperature and humidity sensors 134 in the indoor air return opening 13 sense that the humidity value of the air collected from each indoor space into the indoor air return opening 13 is larger than a set value (assumed to be 70%), the indoor and outdoor temperature and humidity sensors 134 control the electric air valve I161 to be opened, the electric air valve II 151 is closed, so that the indoor return air enters the indoor air through the electric air valve I161 and is mixed with the outdoor fresh air, the humidity of the air entering the dehumidifying air duct 31 is reduced, and then the humidity of the air is further reduced after passing through the precooling surface cooler 311 and the dehumidifying surface cooler 312, so that the humidity of the air entering the indoor space is reduced and controlled; because the indoor air is continuously circulated, when the carbon dioxide sensor 132 senses that the carbon dioxide content in the air is greater than the set value, the electric air valve I161 is driven to be closed, the electric air valve II 151 is driven to be opened, and then the indoor air is discharged from the outdoor exhaust duct 15, and fresh air is sent into the room from the indoor air supply outlet 321 after passing through the dehumidification air duct 31, so that the indoor carbon dioxide content is regulated.
Second case: the indoor air is not excluded and is internally circulated, wherein the water treatment process and the air treatment process are consistent with those of the first condition, except that the first electric air valve 161 in the initial state is in an opened state, the second electric air valve 151 is in a closed state, and the third electric air valve 141 is in a closed state, so that the air from the indoor air inlet 13 is introduced into the indoor air delivery duct 14 through the first electric air valve 161 after passing through the first heat exchanger 11, and then is introduced into the indoor air from the indoor air delivery port 321 again through the dehumidifying air duct 31, the indoor air is recycled, the temperature of the indoor air can be fully utilized, the heat loss after heat exchange is reduced, and on the other hand, the circulated air is continuously circulated and dehumidified, so that the humidity can be well controlled. When the carbon dioxide content in the air is increased due to multiple circulation of the indoor air, when the air passes through the indoor air return opening 13, and the carbon dioxide sensor 132 senses that the carbon dioxide content in the air is greater than a set value, the electric air valve I161 is driven to be closed, the electric air valve II 151 is driven to be opened at the moment, and then the indoor air is discharged from the outdoor exhaust duct 15, and fresh air is sent into the room from the indoor air supply opening 321 after passing through the dehumidification air duct 31.
Third case: when dehumidification is not needed, the cooling water entering from the cold and heat source water inlet pipe 2222 directly enters the second heat exchanger 21 through the first three-way valve 221, and does not pass through the dehumidification surface cooler 312; similarly, the water entering from the water collecting and separating water inlet pipe 25 also directly enters the second heat exchanger 21 and does not pass through the pre-cooling surface cooler 311 and the heating surface cooler 313; meanwhile, the electric air valve III 141 is opened, so that the air entering the indoor air delivery duct 14 can pass through the dehumidifying air duct 31 and the non-resistance air channel 32 at the same time, thereby accelerating the circulation speed of the air, and the non-resistance air channel 32 can allow the air to pass through quickly, and the dehumidifying air duct 31 has a certain resistance to the flow speed of the air due to the arrangement of the precooling surface cooler 311, the dehumidifying surface cooler 312 and the heating surface cooler 313, thereby accelerating the circulation of the air through the non-resistance air channel 32.
In summary, the indoor air humidity is detected at the first time through the indoor control panel 44, when the humidity is high, the cooling is stopped, and the dehumidifying box 3 dehumidifies the air entering the indoor, so that the indoor condensation is not easy to occur, and when the indoor humidity is reduced below the set value, the cooling is operated again, so that the indoor humidity is used as a first-stage protection device for controlling the indoor humidity; the humidity of the air discharged from the room is detected by the indoor and outdoor temperature and humidity sensor 134 arranged at the indoor air return opening 13, when the humidity value of the air discharged from the room is large, the humidity value of the fresh air is still large, the mixed air is circulated into the room, and the indoor air is dehumidified again in the dehumidification box 3, so that the indoor air humidity is quickly reduced, and the device is used as a secondary protection device for controlling the indoor humidity; when the radiation surface temperature of the top capillary 411 is close to the dew point temperature, the dew point temperature controller 45 cuts off the power supply to stop the operation of the water treatment device and the air treatment device, so that the top capillary 411 and the ground capillary 412 are not easy to form dew, and the three-stage protection device is used as a three-stage protection device for humidity control.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (8)
1. A planar radiation air conditioning system comprises a central control unit, an outdoor unit, a water collector (4), a radiation tail end and a dew point temperature controller (45); the method is characterized in that:
the central control machine comprises an air treatment device and a water treatment device;
one loop of the water treatment device is connected with the water collecting and distributing device (4) and the radiation tail end, and the other loop is connected with the outdoor unit;
the air treatment device comprises a first heat exchanger (11), an outdoor fresh air inlet (12) and an indoor air return opening (13) which are arranged on the first heat exchanger (11), an indoor air delivery duct (14) and an outdoor exhaust duct (15) which are arranged under the first heat exchanger (11), wherein the indoor air return opening (13) is communicated with a top surface air return opening (133) arranged at the top of each indoor, the indoor air delivery duct (14) is communicated with a ground air supply opening (3212) arranged at the bottom of each indoor, and the outdoor fresh air inlet (12), the indoor air delivery duct (14) and one channel of the first heat exchanger (11); the indoor air return port (13) and the outdoor exhaust duct (15) are communicated with the other channel of the first heat exchanger (11);
the water separator (4) is provided with a first-stage protection device for controlling humidity, the first-stage protection device comprises a valve (42) arranged at the water outlet end of the water separator (4), an electric heating actuator (43) for controlling the valve (42) to open and close, and a control panel (44) arranged in each chamber and used for detecting a humidity value, and the control panel (44) is connected with the electric heating actuator (43);
an electric air valve I (161) is arranged between the outdoor exhaust duct (15) and the indoor air delivery duct (14), and an electric air valve II (151) is arranged at an air outlet of the outdoor exhaust duct (15);
a dehumidification box (3) is further arranged in the central control machine, a dehumidification air duct (31) is arranged in the dehumidification box (3), a dehumidification surface cooler (312) is arranged in the dehumidification air duct (31), one side of the dehumidification box (3) is communicated with the indoor air supply duct (14), and the other end of the dehumidification box is communicated with the ground air supply outlet (3212);
the indoor air return port (13) is provided with a secondary protection device for controlling humidity, and the secondary protection device comprises an indoor and outdoor temperature and humidity sensor (134) for controlling the opening and closing states of the electric air valve I (161) and the electric air valve II (151);
when the humidity of the indoor air return opening (13) is greater than a set value, the indoor and outdoor temperature and humidity sensor (134) controls the electric air valve I (161) to be opened and the electric air valve II (151) to be closed;
when the indoor humidity is greater than a set value, the control panel (44) drives the valve (42) to be in a closed state through the electric heating actuator (43);
when the indoor humidity is smaller than a set value, the control panel (44) drives the valve (42) to be in an open state through the electric heating actuator (43);
the radiation end is a capillary tube (41), and the dew point temperature controller (45) is arranged on the capillary tube (41) in each chamber and used as a three-stage protection device;
when the dew point temperature controller (45) is triggered, the air treatment device and the water treatment device are stopped;
the water treatment device comprises a cold and heat source water inlet pipe (22), a cold and heat source water outlet pipe (23), a second heat exchanger (21), a water collecting and discharging pipe (24) and a water collecting and discharging pipe (25), wherein the cold and heat source water inlet pipe (22), the cold and heat source water outlet pipe (23) are communicated with one loop of the second heat exchanger (21), and the water collecting and discharging pipe (24), the water collecting and discharging pipe (25) are communicated with the other loop of the second heat exchanger (21);
the cold and heat source water inlet pipe (22) and the cold and heat source water outlet pipe (23) are respectively connected with two ends of the outdoor unit, and the water collecting and discharging pipe (24) and the water collecting and discharging water inlet pipe (25) are respectively connected with two ends of the water collecting and discharging device (4).
2. A planar radiation air conditioning system as defined in claim 1, wherein: the capillary tube (41) comprises a top surface capillary tube (411) arranged at the indoor top and a ground capillary tube (412) paved on the indoor ground, wherein the top surface capillary tube (411) and the ground capillary tube (412) are connected to the water collecting and distributing device (4), and the dew point temperature controller (45) is arranged on the top surface capillary tube (411).
3. A planar radiation air conditioning system as defined in claim 1, wherein: the water inlet end and the water outlet end of the dehumidifying surface cooler (312) are connected in parallel to the cold and heat source water inlet pipe (22), the water outlet end of the dehumidifying surface cooler (312) is arranged at one end of the cold and heat source water inlet pipe (22) close to the second heat exchanger (21), and the water inlet end of the dehumidifying surface cooler (312) is connected with the cold and heat source water inlet pipe (22) through a three-way valve I (221).
4. A planar radiating air conditioning system as defined in claim 3 wherein: the dehumidification box (3) is internally provided with a heating surface cooler (313), the water inlet end and the water outlet end of the heating surface cooler (313) are both connected to the water collecting and separating inlet pipe (25), the water outlet end of the heating surface cooler (313) is arranged at one end, close to the second heat exchanger (21), of the water collecting and separating inlet pipe (25) through a three-way valve II (251), and the water inlet end of the heating surface cooler (313) is connected with the water collecting and separating inlet pipe (25), and the heating surface cooler (313) is arranged at one side, far away from the air treatment box (1), of the dehumidification surface cooler (312).
5. A planar radiating air conditioning system as defined in claim 4 wherein: still be provided with precooling surface cooler (311) in dehumidification case (3), precooling surface cooler (311) establish ties in the play water end of intensification surface cooler (313), and precooling surface cooler (311) set up in dehumidification surface cooler (312) one side of keeping away from intensification surface cooler (313), the output of precooling surface cooler (311) is connected to on diversity water inlet tube (25).
6. A planar radiating air conditioning system as defined in claim 5 wherein: a proportional integral valve (26) is connected between the water collecting and discharging pipe (24) and the water collecting and discharging pipe (25), a temperature sensor (261) is arranged at a water outlet of the water collecting and discharging pipe (24), and the temperature sensor (261) is connected with the proportional integral valve (26).
7. A planar radiation air conditioning system as defined in claim 1, wherein: the water collecting and discharging pipe (24) is connected with a water pump (241), the water outlet end section of the water pump (241) is connected with an explosion-proof valve (242), and the explosion-proof valve (242) is provided with an expansion tank (243).
8. A planar radiation air conditioning system as defined in claim 1, wherein: the indoor air return opening (13) is provided with an exhaust centrifugal fan (131), one end of the dehumidification air duct (31) is communicated with the indoor air supply duct (14), the other end of the dehumidification air duct (31) is an indoor air supply opening (321), and the indoor air supply opening (321) is provided with an air supply centrifugal fan (3211).
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