CN114623514A - Total-heat fresh air dehumidifier and operation method thereof - Google Patents
Total-heat fresh air dehumidifier and operation method thereof Download PDFInfo
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- CN114623514A CN114623514A CN202210166247.5A CN202210166247A CN114623514A CN 114623514 A CN114623514 A CN 114623514A CN 202210166247 A CN202210166247 A CN 202210166247A CN 114623514 A CN114623514 A CN 114623514A
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- 238000000034 method Methods 0.000 title claims description 15
- 238000009423 ventilation Methods 0.000 claims abstract description 52
- 238000007791 dehumidification Methods 0.000 claims abstract description 24
- 238000005192 partition Methods 0.000 claims abstract description 11
- 239000003507 refrigerant Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/029—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/032—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers
- F24F1/0323—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0358—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with dehumidification means
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
Abstract
A total heat fresh air dehumidifier, the container body 1 includes the fresh air inlet 3, the air outlet 4, the return air inlet 6, divide into four cabins including upper cabins and lower cabins in the container body 1, the second cabin sets up the total heat exchange core 19, set up the splitter plate 7 separately between upper and lower cabins of other cabins, offer the air channel of the vent gap 14 formation between the adjacent upper and lower cabins; the first upper cabin 8 is provided with an exhaust fan 15 leading to the outside through an exhaust port 4, and the first lower cabin 9 is provided with a fresh air valve 16; the inclined plate of the partition plate 7 of the third cabin is provided with a return air vent 31 and a return air valve 20; a compressor 21, a four-way reversing valve 22, a first heat exchanger 23, a second heat exchanger 24 and a third heat exchanger 25 are arranged in the third cabin to form a refrigerant heat exchange loop, and a fresh air fan 28 is arranged in the fourth upper cabin 12 and leads to the indoor space through an air supply outlet 5; the fresh air ventilation mode, the fresh air dehumidification mode and the internal circulation quick dehumidification mode are provided for switching.
Description
Technical Field
The invention belongs to the technical field of dehumidifiers, and relates to a total-heat fresh air dehumidifier and an operation method thereof.
Background
With the increasing improvement of the living quality of people, the indoor air quality of places such as living, working and leisure places is concerned more and more. From a ventilation device which only replaces indoor air and outdoor air, a dehumidifier which reduces the humidity of air by pumping away moisture in the air in a refrigeration mode is combined, and a fresh air dehumidifier which combines ventilation and dehumidification is provided. The total heat exchange core is a high-efficiency energy-saving heat recovery device, the fresh air introduced into the air conditioning system is preheated or precooled by recovering the waste heat in the exhaust, and before the fresh air enters the room and is subjected to heat-moisture treatment, the enthalpy value of the fresh air is reduced or increased, so that the energy consumption can be effectively reduced. The total-heat fresh air dehumidifier is a fresh air dehumidifier additionally provided with a total-heat exchange core. The total heat exchange fresh air dehumidifier is usually hidden and suspended above a ceiling in a suspended ceiling mode, and an air duct is used for connecting the outdoor and the indoor.
The existing fresh air dehumidifier with the total heat exchange core has a single working mode and cannot meet different requirements of users under different climatic conditions. For example, in summer in south China, the air is sultry, the air temperature is high, and the humidity is high, especially in plum rain season; and the wall surface has heavy moisture after new house decoration. The fresh air dehumidifier with the single total heat exchange core in the existing working mode cannot well meet the needs of users.
Disclosure of Invention
The invention aims to solve the technical problem of providing a total-heat fresh air dehumidifier which has three working modes of a fresh air ventilation mode, a fresh air dehumidification mode and an internal circulation rapid dehumidification mode and can be switched and an operation method thereof.
The technical scheme adopted by the total-heat fresh air dehumidifier is as follows:
a total-heat fresh air dehumidifier comprises a box body, wherein an electric cabinet is arranged in the box body, the box body comprises an outdoor connecting side and an indoor connecting side, the outdoor connecting side is used for communicating the outdoor with the indoor, the outdoor connecting side is respectively provided with a fresh air inlet used for absorbing outdoor fresh air and an air outlet used for exhausting air to the outdoor, the indoor connecting side is respectively provided with an air supply outlet used for conveying fresh air to the indoor and an air return opening used for absorbing indoor air, and the dehumidifier is characterized in that the box body is sequentially divided into a first cabin, a second cabin, a third cabin and a fourth cabin from the outdoor connecting side to the indoor connecting side, and each cabin is divided into an upper cabin and a lower cabin; a partition board is respectively arranged between the upper cabin and the lower cabin except the first cabin, the third cabin and the fourth cabin outside the second cabin to partition the first upper cabin and the first lower cabin, the third upper cabin and the third lower cabin, the fourth upper cabin and the fourth lower cabin, and the second cabin is also divided into a second upper cabin and a second lower cabin according to the longitudinal direction of the second cabin; a ventilation gap is formed between the adjacent upper cabin and the adjacent lower cabin to form an air duct; the first upper cabin is provided with an exhaust fan which leads to the outside through the exhaust outlet, and the first lower cabin is provided with a fresh air valve, a fresh air temperature and humidity sensor and a fresh air filter screen; the second cabin is provided with a total heat exchange core; the section of the partition plate of the third cabin, which is close to the outdoor side, is an inclined plate which inclines upwards, the inclined plate is provided with a return air vent, and the return air vent is provided with a return air valve; a compressor, a four-way reversing valve, a first heat exchanger, a second heat exchanger and a third heat exchanger are arranged in the third cabin and are connected with each other through copper pipes or capillary tubes to form a heat exchange loop through which a refrigerant flows, wherein the first heat exchanger and the second heat exchanger are arranged in the third upper cabin, one of the first heat exchanger and the second heat exchanger is an evaporator, and the other one is a condenser; the third heat exchanger is arranged in the third lower cabin; an air exhaust valve is arranged at the communication part of the outer side of the third lower cabin and the second cabin; a fresh air fan is arranged in the fourth upper cabin, leads to the indoor space through the air supply outlet and is provided with an air supply temperature and humidity sensor; the exhaust fan, the fresh air valve, the fresh air temperature and humidity sensor, the exhaust air valve, the fresh air fan, the air supply temperature and humidity sensor, the return air valve, the compressor and the four-way reversing valve are all electrically connected with a main control circuit board in the electric cabinet.
The following is a further scheme of the total-heat fresh air dehumidifier of the invention:
the first heat exchanger and the second heat exchanger are arranged adjacently in parallel, and the compressor is arranged in the third upper cabin and positioned beside the second heat exchanger; the four-way reversing valve is arranged in the third lower cabin.
The bottom surface of the third cabin is provided with a water receiving disc, a draining pump and a draining pipe, the draining pump is electrically connected with a main control circuit board in the electric cabinet, and intermittent draining is realized during dehumidification operation.
A liquid level switch is arranged on the water receiving tray, an alarm is arranged on the box body, the liquid level switch and the alarm are respectively and electrically connected with a main control circuit board in the electric cabinet, and full water shutdown and alarm are realized during dehumidification operation.
The fresh air filter screen comprises a fresh air primary filter screen arranged in front and a fresh air secondary filter screen arranged behind.
The electric cabinet is arranged in a fourth lower cabin, a return air filter screen is arranged at an air return port of the fourth lower cabin, and an all-in-one sensor capable of sensing five physical indexes of air such as temperature, humidity, VOC, PM2.5 and CO2 from indoor return air is also arranged in the fourth lower cabin; and an exhaust temperature sensor is arranged on the exhaust fan.
The box body comprises a frame, the frame comprises bottom rib plates which are arranged at intervals, and 5 vertical rib plates which are intersected with the bottom rib plates are arranged to form spaces for accommodating the first cabin, the second cabin, the third cabin and the fourth cabin in sequence in a separated mode; first cabin, second cabin, third cabin, fourth cabin set up independent subbox respectively, form first module, second module, third module, fourth module separately in proper order for each module can realize: when in assembly, all modules are assembled in advance and then are arranged in the box body; during maintenance, each module can be respectively drawn out from the box body for maintenance.
A first access door and a second access door are arranged on the outer side of the box body, so that the fresh air filter screen can be replaced by opening the first access door, and the return air filter screen can be replaced by opening the second access door; and a flat cable junction box is arranged below the second lower cabin, and connecting wires of all the modules form oppositely-inserted connecting terminals in the flat cable junction box respectively.
The operation methods of the three working modes of the total-heat fresh air dehumidifier, which can be selected and switched by a user, are respectively as follows:
the invention relates to a fresh air ventilation mode operation method of a total-heat fresh air dehumidifier, which comprises the following steps: the compressor and the return air valve are closed, the exhaust air valve and the fresh air valve are in an open state, the exhaust fan and the fresh air fan are started, and simultaneously, the indoor air sequentially passes through the return air inlet, the fourth lower cabin, the ventilation gap between the third lower cabin and the fourth lower cabin, the third lower cabin, the exhaust air valve, the ventilation gap between the second lower cabin and the third lower cabin, the total heat exchange core, the ventilation gap between the first upper cabin and the second upper cabin, the first upper cabin, the exhaust fan and the exhaust port which are positioned in the first upper cabin and are discharged outwards, so that the outdoor fresh air sequentially passes through the fresh air inlet, the first lower cabin, the fresh air valve, the fresh air filter screen, the ventilation gap between the first lower cabin and the second lower cabin, the total heat exchange core, the ventilation gap between the second upper cabin and the third upper cabin, the ventilation gap between the third upper cabin and the fourth upper cabin, and the vent gap between the third upper cabin, The fourth upper cabin, the fresh air fan and the air supply outlet are used for inputting air indoors.
The invention relates to a fresh air dehumidification mode operation method of a total heat fresh air dehumidifier, which comprises the following steps: the return air valve is closed, and the compressor, the exhaust air valve and the fresh air valve are opened; by switching the four-way reversing valve, when the compressor works, a first heat exchanger in a heat exchange loop through which the refrigerant flows is an evaporator, a second heat exchanger is a heating condenser, and a third heat exchanger is a radiating condenser; starting the exhaust fan and the fresh air fan to enable indoor air to sequentially pass through an air return opening, a fourth lower cabin, a ventilation gap between the third lower cabin and the fourth lower cabin, the third lower cabin, a third heat exchanger positioned in the third lower cabin, an exhaust air valve, a ventilation gap between the second lower cabin and the third lower cabin, a total heat exchange core, a ventilation gap between the first upper cabin and the second upper cabin, the first upper cabin, the exhaust fan and an exhaust outlet and be exhausted outwards; meanwhile, outdoor fresh air sequentially passes through a fresh air inlet, a first lower cabin, a fresh air valve and a fresh air filter screen which are positioned in the first lower cabin, a ventilation notch between the first lower cabin and a second lower cabin, a full heat exchange core, a ventilation notch between a second upper cabin and a third upper cabin, a first heat exchanger and a second heat exchanger which are positioned in the third upper cabin, a ventilation notch between the third upper cabin and a fourth upper cabin, a fresh air fan and an air supply outlet which are positioned in the fourth upper cabin, and is input into the room.
The invention relates to an internal circulation rapid dehumidification mode operation method of a total heat fresh air dehumidifier, which comprises the following steps: the fresh air valve and the exhaust air valve are in a closed state, and the compressor and the return air valve are in an open state; by switching the four-way reversing valve, when the compressor works, the first heat exchanger in a heat exchange loop through which the refrigerant flows is a condenser, the second heat exchanger is an evaporator, and the third heat exchanger is an evaporator; and starting the fresh air fan to ensure that indoor air is input into the room sequentially through the air return opening, the fourth lower cabin, the ventilation gap between the third lower cabin and the fourth lower cabin, the third heat exchanger, the return air valve, the third upper cabin, the first heat exchanger and the second heat exchanger, the ventilation gap between the third upper cabin and the fourth upper cabin, the fresh air fan and the air supply opening.
The total-heat fresh air dehumidifier has three working modes of a fresh air ventilation mode, a fresh air dehumidification mode and an internal circulation rapid dehumidification mode, and can well meet different requirements of users under different climatic conditions. Particularly, the novel wall can well meet different requirements of users with heavy wall surface moisture after the decoration of new houses in the rainy season, in summer in south China, such as hot and stuffy air, high air temperature and high humidity. In addition, each cabin of the total-heat fresh air dehumidifier is in modular design, and the first access door and the second access door are arranged on the outer side of the box body, so that the total-heat fresh air dehumidifier is very convenient to install, overhaul and maintain.
Drawings
Fig. 1 is a perspective view of the appearance of the total heat fresh air dehumidifier of the present invention.
Fig. 2 is a perspective view showing the separation state of the access door and the box body of the total-heat fresh air dehumidifier of the invention.
FIG. 3 is a schematic view of the components of the modules of the total-heat fresh air dehumidifier of the present invention.
FIG. 4 is a perspective view of the upper cover of the hidden casing of the total-heat fresh air dehumidifier of the present invention.
Fig. 5 is a perspective view illustrating a state in which the access door is further hidden in the state of fig. 4.
Fig. 6 is a perspective view of the frame of the box and the total heat exchange core.
Fig. 7 is a perspective view of the third module sub-box frame.
Fig. 8 is a perspective view of the third module sub-box frame and internal components.
Fig. 9 is a perspective view illustrating the drawing operation state of each module.
FIG. 10 is a schematic view showing the air flow states of the total-heat fresh air dehumidifier in the fresh air ventilation mode and the fresh air dehumidification mode.
FIG. 11 is a schematic view of the air flow state of the full hot fresh air dehumidifier in the internal circulation quick dehumidification mode.
Reference numbers in the figures: 1. a box body; 2. an electric cabinet; 3. a fresh air inlet; 4. an air outlet; 5. an air supply outlet; 6. an air return inlet; 7. a partition plate; 8. a first upper compartment; 9. a first lower compartment; 10. a third upper compartment; 11. a third lower compartment; 12. a fourth upper compartment; 13. a fourth lower compartment; 14. a vent gap; 15. an exhaust fan; 16. a fresh air valve; 17. a fresh air temperature and humidity sensor; 18. a fresh air filter screen; 19. a total heat exchange core; 20. a return air valve; 21. a compressor; 22. a four-way reversing valve; 23. a first heat exchanger; 24. a second heat exchanger; 25. a third heat exchanger; 26. a copper tube; 27. an air exhaust valve; 28. a fresh air fan; 29. an air supply temperature and humidity sensor; 30. a return air filter screen; 31. an air return vent; 32. draining pump; 33. a liquid level switch; 34. a drain pipe; 35. an all-in-one sensor; 36. a bottom rib plate; 37. a vertical rib plate; 38. an exhaust air temperature sensor; 39. a first access door; 40. a second access door; 41. a flat cable junction box; 42. an upper cover plate; 43. a rear side plate.
Detailed Description
The following describes a specific embodiment of the present invention, as shown in fig. 1 to 7.
The appearance of the total-heat fresh air dehumidifier is shown in figure 1, and comprises a box body 1, wherein an electric cabinet 2 is arranged in the box body 1. As shown in fig. 1 or fig. 3, the box body 1 includes an outdoor connection side for communicating with the outside of the room and an indoor connection side for communicating with the inside of the room, the outdoor connection side is respectively provided with a fresh air inlet 3 for absorbing fresh air from the outside and an air outlet 4 for exhausting air to the outside of the room, the indoor connection side is respectively provided with an air supply outlet 5 for conveying fresh air to the inside of the room and an air return inlet 6 for absorbing indoor air.
As shown in fig. 3, 4 and 5, the interior of the box body 1 is divided into a first cabin, a second cabin, a third cabin and a fourth cabin from an outdoor connecting side to an indoor connecting side in sequence, and each cabin is divided into an upper cabin and a lower cabin; a partition board 7 is respectively arranged between the upper cabin and the lower cabin of the first cabin, the third cabin and the fourth cabin except the second cabin, the partition boards are divided into a first upper cabin 8 and a first lower cabin 9, a third upper cabin 10 and a third lower cabin 11, a fourth upper cabin 12 and a fourth lower cabin 13, and the second cabin is also divided into a second upper cabin and a second lower cabin according to the longitudinal direction of the second cabin; a ventilation gap 14 is formed between the adjacent upper cabin and the adjacent lower cabin to form an air duct; the first upper cabin 8 is provided with an exhaust fan 15 leading to the outside through an exhaust port 4, and the first lower cabin 9 is provided with a fresh air valve 16, a fresh air temperature and humidity sensor 17 and a fresh air filter screen 18; the second cabin is provided with a total heat exchange core 19; the section of the partition plate 7 close to the outdoor side of the third cabin is an inclined plate which is inclined upwards, the inclined plate is provided with a return air vent 31, and the return air vent is provided with a return air valve 20; a compressor 21, a four-way reversing valve 22, a first heat exchanger 23, a second heat exchanger 24 and a third heat exchanger 25 are arranged in the third cabin, and are connected with each other through a copper pipe 26 or a capillary pipe to form a heat exchange loop through which a refrigerant flows, wherein the first heat exchanger 23 and the second heat exchanger 24 are arranged in the third upper cabin 10, one of the first heat exchanger and the second heat exchanger is an evaporator, and the other one is a condenser; the third heat exchanger 25 is provided in the third lower compartment 11; an exhaust air valve 27 is arranged at the communication part of the outer side of the third lower cabin 11 and the second cabin; the fourth upper chamber 12 is provided with a fresh air fan 28 which leads to the indoor through an air supply outlet 5 and is provided with an air supply temperature and humidity sensor 29; the exhaust fan 15, the fresh air valve 16, the fresh air temperature and humidity sensor 17, the exhaust air valve 27, the fresh air fan 28, the air supply temperature and humidity sensor 29, the return air valve 20, the compressor 21 and the four-way reversing valve 22 are all electrically connected with a main control circuit board in the electric cabinet 2.
As shown in fig. 7 and 8, the third module may be provided with an independent third module sub-box, the third module sub-box frame is shown in fig. 7, and the components of the third module are installed as shown in fig. 8.
As shown in fig. 3, 4, 5 and 8, in the third compartment, the first heat exchanger 23 and the second heat exchanger 24 are arranged adjacently in parallel, and the compressor 21 is arranged in the third upper compartment 10 and beside the second heat exchanger 24; a four-way selector valve 22 is provided in the third lower compartment 11. The bottom surface of the third cabin is provided with a water receiving disc, a drainage pump 32 and a drainage pipe 34, wherein the drainage pump 32 is electrically connected with a main control circuit board in the electric cabinet 2, and the intermittent drainage is realized during the dehumidification operation. A liquid level switch 33 is arranged on the water receiving tray, an alarm is arranged on the box body 1, the liquid level switch 33 and the alarm are respectively and electrically connected with a main control circuit board in the electric cabinet 2, and full shutdown and alarm are realized during dehumidification operation.
As shown in fig. 3, 4, and 5, the fresh air filter screen 18 includes a fresh air primary filter screen arranged in front and a fresh air secondary filter screen arranged behind. The electric cabinet 2 is arranged in a fourth lower cabin 13, a return air filter screen 30 is arranged at a return air inlet 6 of the fourth lower cabin 13, and an all-in-one sensor 35 capable of sensing the physical indexes of five gases such as the temperature, the humidity, the VOC, the PM2.5 and the CO2 of return air from the indoor at the same time is also arranged in the fourth lower cabin 13; the exhaust fan 15 is provided with an exhaust air temperature sensor 38.
As shown in fig. 6, the box 1 includes a frame, the frame includes bottom rib plates 36 arranged at intervals, 5 vertical rib plates 37 intersecting with the bottom rib plates 36 are arranged to separate and sequentially form a space for accommodating a first compartment, a second compartment, a third compartment and a fourth compartment; first cabin, second cabin, third cabin, fourth cabin set up independent subbox respectively, form first module, second module, third module, fourth module separately in proper order for each module can realize: when assembling, the modules are assembled in advance and then are loaded into the box body 1. As shown in fig. 9, each module can be extracted from the box 1 for maintenance.
As shown in fig. 2 and 4, a first access door 39 and a second access door 40 are arranged on the outer side of the box body 1, so that the fresh air filter screen can be replaced by opening the first access door 39, and the return air filter screen 30 can be replaced by opening the second access door 40; a flat cable junction box 41 is arranged below the second lower cabin, and connecting wires of the modules form plug-in connection terminals in the flat cable junction box 41 respectively. As shown in FIG. 2, an upper cover plate 42 is additionally provided on the case 1, and a rear side plate 43 is additionally provided on the rear side of the case 1.
The total-heat fresh air dehumidifier has three working modes for users to select and switch: 1. a fresh air ventilation mode; 2. a fresh air dehumidification mode of the total-heat fresh air dehumidifier; 3. and an internal circulation rapid dehumidification mode. If the temperature and the humidity are all suitable for people, the mode can be selected to be switched to the fresh air ventilation mode. In hot weather with high temperature and humidity, such as hot air in summer in south China, high temperature and high humidity, especially in plum rain, the fresh air dehumidification mode of the total-heat fresh air dehumidifier can be selected to be switched to. If the moisture on the wall surface is heavy in a period after the new house is finished, the mode can be switched to the internal circulation quick dehumidification mode.
The operation methods of the three working modes of the total-heat fresh air dehumidifier, which can be selected and switched by a user, are respectively as follows:
the invention relates to a fresh air ventilation mode operation method of a total-heat fresh air dehumidifier, which comprises the following steps: as shown in fig. 3 and 10, the compressor 21 and the return air valve 20 are closed, the exhaust air valve 27 and the fresh air valve 16 are opened, the exhaust fan 15 and the fresh air fan 28 are started, and simultaneously, the indoor air sequentially passes through the return air inlet 6, the fourth lower cabin 13, the ventilation gap 14 between the third lower cabin 11 and the fourth lower cabin 13, the third lower cabin 11, the exhaust air valve 27, the ventilation gap 14 between the second lower cabin and the third lower cabin 11, the total heat exchange core 19, the ventilation gap 14 between the first upper cabin 8 and the second upper cabin, the first upper cabin 8, the exhaust fan 15 and the exhaust outlet 4 which are arranged in the first upper cabin 8, and is discharged outwards, so that the outdoor fresh air sequentially passes through the fresh air inlet 3, the first lower cabin 9, the fresh air valve 16, the fresh air filter screen 18, the ventilation gap 14 between the first lower cabin 9 and the second lower cabin, the total heat exchange core 19, the fresh air filter screen 18, the total heat exchange core 19, A ventilation gap 14 between the second upper cabin and the third upper cabin 10, a ventilation gap 14 between the third upper cabin 10 and the fourth upper cabin 12, a fresh air fan 28 and an air supply opening 5.
The invention relates to a fresh air dehumidification mode operation method of a total heat fresh air dehumidifier, which comprises the following steps: as shown in fig. 3 and 10, the return air damper 20 is closed, and the compressor 21, the discharge air damper 27, and the fresh air damper 16 are opened; by switching the four-way reversing valve 22, when the compressor 21 works, the first heat exchanger 23 in the heat exchange loop through which the refrigerant flows is an evaporator, the second heat exchanger 24 is a heating condenser, and the third heat exchanger 25 is a radiating condenser; starting an exhaust fan 15 and a fresh air fan 28, so that the indoor air sequentially passes through an air return opening 6, a fourth lower cabin 13, a ventilation gap 14 between the third lower cabin 11 and the fourth lower cabin 13, the third lower cabin 11, a third heat exchanger 25 positioned in the third lower cabin 11, an exhaust air valve 27, the ventilation gap 14 between the second lower cabin and the third lower cabin 11, a total heat exchange core 19, the ventilation gap 14 between the first upper cabin 8 and the second upper cabin, the first upper cabin 8, the exhaust fan 15 and an exhaust outlet 4 and is discharged outwards; meanwhile, outdoor fresh air is sequentially input into the room through a fresh air inlet 3, a first lower cabin 9, a fresh air valve 16 and a fresh air filter 18 which are positioned in the first lower cabin, a ventilation gap 14 between the first lower cabin 9 and a second lower cabin, a full heat exchange core 19, a ventilation gap 14 between a second upper cabin and a third upper cabin 10, the third upper cabin 10, a first heat exchanger 23 and a second heat exchanger 24 which are positioned in the third upper cabin, a ventilation gap 14 between the third upper cabin 10 and a fourth upper cabin 12, the fourth upper cabin 12, a fresh air fan 28 and an air supply opening 5 which are positioned in the fourth upper cabin 12.
The invention relates to an internal circulation rapid dehumidification mode operation method of a total heat fresh air dehumidifier, which comprises the following steps: as shown in fig. 3 and 11, the fresh air valve 16 and the discharge air valve 27 are closed, and the compressor 21 and the return air valve 20 are opened; by switching the four-way reversing valve 22, when the compressor 21 works, the first heat exchanger 23 in the heat exchange loop through which the refrigerant flows is a condenser, the second heat exchanger 24 is an evaporator, and the third heat exchanger 25 is an evaporator; and starting the fresh air fan 28 to enable indoor air to sequentially pass through the air return opening 6, the fourth lower cabin 13, the ventilation gap 14 between the third lower cabin 11 and the fourth lower cabin 13, the third lower cabin and the third heat exchanger 25 positioned in the third lower cabin, the return air valve 20, the third upper cabin and the first heat exchanger 23 and the second heat exchanger 24 positioned in the third upper cabin, the ventilation gap 14 between the third upper cabin 10 and the fourth upper cabin 12, the fresh air fan 28 positioned in the fourth upper cabin and the air supply opening 5, and then inputting the indoor air into the room.
All references to left, right, up, down, front, rear, etc. throughout this specification are to be understood as being relative to the drawings in the specification and as being indicative of the nature of the invention, and not as limiting.
Claims (10)
1. A total-heat fresh air dehumidifier comprises a box body (1), wherein an electric cabinet (2) is arranged in the box body (1), the box body (1) comprises an outdoor connecting side used for communicating outdoors and an indoor connecting side used for communicating indoors, the outdoor connecting side is respectively provided with a fresh air inlet (3) used for absorbing outdoor fresh air and an air outlet (4) used for exhausting to the outdoors, the indoor connecting side is respectively provided with an air supply outlet (5) used for conveying fresh air to the indoors and a return air inlet (6) used for absorbing indoor air, and the total-heat fresh air dehumidifier is characterized in that the inside of the box body (1) is sequentially divided into a first cabin, a second cabin, a third cabin and a fourth cabin from the outdoor connecting side to the indoor connecting side, and each cabin is divided into an upper cabin and a lower cabin; a partition board (7) is respectively arranged between the upper cabin and the lower cabin of the first cabin, the third cabin and the fourth cabin except the second cabin, the partition boards are divided into a first upper cabin (8) and a first lower cabin (9), a third upper cabin (10) and a third lower cabin (11), a fourth upper cabin (12) and a fourth lower cabin (13), and the second cabin is also divided into a second upper cabin and a second lower cabin according to the longitudinal direction of the second cabin; a ventilation gap (14) is arranged between the adjacent upper cabin and the adjacent lower cabin to form an air duct; the first upper cabin (8) is provided with an exhaust fan (15) which leads to the outside through the exhaust outlet (4), and the first lower cabin (9) is provided with a fresh air valve (16), a fresh air temperature and humidity sensor (17) and a fresh air filter screen (18); the second cabin is provided with a total heat exchange core (19); the section of the partition plate (7) of the third cabin close to the outdoor is an inclined plate which is inclined upwards, the inclined plate is provided with a return air vent (31), and the return air vent is provided with a return air valve (20); a compressor (21), a four-way reversing valve (22), a first heat exchanger (23), a second heat exchanger (24) and a third heat exchanger (25) are arranged in the third cabin and are connected with each other through a copper pipe (26) or a capillary pipe to form a heat exchange loop through which a refrigerant flows, wherein the first heat exchanger (23) and the second heat exchanger (24) are arranged in the third upper cabin (10), one of the first heat exchanger and the second heat exchanger is an evaporator, and the other one is a condenser; the third heat exchanger (25) is arranged in the third lower chamber (11); an exhaust air valve (27) is arranged at the position where the outer side of the third lower cabin (11) is communicated with the second cabin; the fourth upper chamber (12) is provided with a fresh air fan (28) which leads to the indoor through the air supply outlet (5) and is provided with an air supply temperature and humidity sensor (29); the air exhaust fan (15), the fresh air valve (16), the fresh air temperature and humidity sensor (17), the air exhaust valve (27), the fresh air fan (28), the air supply temperature and humidity sensor (29), the return air valve (20), the compressor (21) and the four-way reversing valve (22) are all electrically connected with a main control circuit board in the electric cabinet (2).
2. The total-heat fresh air dehumidifier as claimed in claim 1, wherein the first heat exchanger (23) and the second heat exchanger (24) are adjacently arranged in parallel, and the compressor (21) is arranged in the third upper chamber (10) and beside the second heat exchanger (24); the four-way reversing valve (22) is arranged in the third lower cabin (11).
3. The total-heat fresh air dehumidifier as claimed in claim 1, wherein the bottom surface of the third chamber is provided with a water receiving tray, a drainage pump (32) and a drainage pipe (34), the drainage pump (32) is electrically connected with a main control circuit board in the electric cabinet (2), and intermittent drainage is realized during dehumidification operation.
4. The total-heat fresh air dehumidifier as claimed in claim 3, wherein a liquid level switch (33) is arranged on the water pan, an alarm is arranged on the box body (1), the liquid level switch (33) and the alarm are respectively and electrically connected with a main control circuit board in the electric cabinet (2), and when the dehumidifier is operated, the dehumidifier can stop when water is full and give an alarm.
5. The total-heat fresh air dehumidifier as claimed in claim 1, wherein the electric cabinet (2) is arranged in a fourth lower chamber (13), the fourth lower chamber (13) is provided with a return air filter screen (30) at the return air inlet (6), and the fourth lower chamber (13) is also provided with an all-in-one sensor (35) which can simultaneously sense five physical indexes of air such as temperature, humidity, VOC, PM2.5 and CO2 from indoor return air; an exhaust temperature sensor (38) is arranged on the exhaust fan (15).
6. The full-heat fresh air dehumidifier according to claim 5, wherein the box body (1) comprises a frame, the frame comprises bottom rib plates (36) which are arranged at intervals, and 5 vertical rib plates (37) which are intersected with the bottom rib plates (36) are arranged to be separated to form a space for accommodating the first cabin, the second cabin, the third cabin and the fourth cabin in sequence; first cabin, second cabin, third cabin, fourth cabin set up independent subbox respectively, form first module, second module, third module, fourth module separately in proper order for each module can realize: when in assembly, all modules are assembled in advance and then are arranged in the box body (1); when in maintenance, each module can be respectively extracted from the box body (1) for maintenance.
7. The total-heat fresh air dehumidifier as claimed in claim 6, wherein a first access door (39) and a second access door (40) are arranged on the outer side of the box body (1), so that the fresh air filter screen can be replaced by opening the first access door (39), and the return air filter screen (30) can be replaced by opening the second access door (40); and a flat cable junction box (41) is arranged below the second lower cabin, and connecting wires of the modules form plug-in wiring terminals in the flat cable junction box (41).
8. The fresh air ventilating mode operation method of the total heat fresh air dehumidifier according to any one of claims 1 to 7, wherein the compressor (21) and the return air valve (20) are closed, the exhaust air valve (27) and the fresh air valve (16) are opened, the exhaust fan (15) and the fresh air fan (28) are started, and simultaneously, the indoor air sequentially passes through the return air inlet (6), the fourth lower compartment (13), the ventilating gap (14) between the third lower compartment (11) and the fourth lower compartment (13), the third lower compartment (11), the exhaust air valve (27), the ventilating gap (14) between the second lower compartment and the third lower compartment (11), the total heat exchange core (19), the ventilating gap (14) between the first upper compartment (8) and the second upper compartment, the first upper compartment (8) and the exhaust fan (15) and the fresh air fan (28) located therein, Air exit (4), outwards discharge, make outdoor new air pass through in proper order new trend import (3), first cabin (9) and be located new trend blast gate (16) wherein, new trend filter screen (18), ventilation breach (14) between first cabin (9) and the second cabin down, full heat exchange core (19), ventilation breach (14) between second upper compartment and the third upper compartment (10), ventilation breach (14) between third upper compartment (10) and the fourth upper compartment (12), new trend fan (28), supply-air outlet (5), to indoor input.
9. The operation method of fresh air dehumidification mode of total-heat fresh air dehumidifier according to any of claims 1 to 7, wherein the return air valve (20) is in closed state, and the compressor (21), the exhaust air valve (27) and the fresh air valve (16) are in open state; by switching the four-way reversing valve (22), when the compressor (21) works, a first heat exchanger (23) in a heat exchange loop through which the refrigerant flows is an evaporator, a second heat exchanger (24) is a heating condenser, and a third heat exchanger (25) is a radiating condenser; starting the exhaust fan (15) and the fresh air fan (28), so that the indoor air sequentially passes through the air return opening (6), the fourth lower cabin (13), a ventilation gap (14) between the third lower cabin (11) and the fourth lower cabin (13), the third lower cabin (11), a third heat exchanger (25) positioned in the third lower cabin, an exhaust air valve (27), a ventilation gap (14) between the second lower cabin and the third lower cabin (11), a total heat exchange core (19), a ventilation gap (14) between the first upper cabin (8) and the second upper cabin, the first upper cabin (8), the exhaust fan (15) and the exhaust outlet (4) and is exhausted outwards; meanwhile, outdoor fresh air is input into the room sequentially through a fresh air inlet (3), a first lower cabin (9), a fresh air valve (16) and a fresh air filter screen (18) which are positioned in the first lower cabin, a ventilation notch (14) between the first lower cabin (9) and a second lower cabin, a full heat exchange core (19), a ventilation notch (14) between a second upper cabin and a third upper cabin (10), the third upper cabin (10), a first heat exchanger (23) and a second heat exchanger (24) which are positioned in the third upper cabin, a ventilation notch (14) between the third upper cabin (10) and a fourth upper cabin (12), the fourth upper cabin (12), a fresh air fan (28) which is positioned in the fourth upper cabin, and an air supply opening (5).
10. The internal circulation rapid dehumidification mode operation method of the total heat fresh air dehumidifier according to any one of claims 1 to 7, wherein the fresh air valve (16) and the exhaust air valve (27) are in a closed state, and the compressor (21) and the return air valve (20) are in an open state; by switching the four-way reversing valve (22), when the compressor (21) works, the first heat exchanger (23) in a heat exchange loop through which the refrigerant flows is a condenser, the second heat exchanger (24) is an evaporator, and the third heat exchanger (25) is an evaporator; the fresh air fan (28) is started, indoor air is enabled to be sequentially input into the room through a ventilation notch (14) between the air return opening (6), the fourth lower cabin (13), the third lower cabin (11) and the fourth lower cabin (13), the third heat exchanger (25) positioned in the third lower cabin, the return air valve (20), the third upper cabin, the first heat exchanger (23) and the second heat exchanger (24) positioned in the third upper cabin, the ventilation notch (14) between the third upper cabin (10) and the fourth upper cabin (12), the fresh air fan (28) positioned in the fourth upper cabin and the air supply opening (5).
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| CN202210166247.5A CN114623514A (en) | 2022-02-23 | 2022-02-23 | Total-heat fresh air dehumidifier and operation method thereof |
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| CN202210166247.5A CN114623514A (en) | 2022-02-23 | 2022-02-23 | Total-heat fresh air dehumidifier and operation method thereof |
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