CN106949572B - Defrosting dehumidifier and runner type dehumidifier defrosting method - Google Patents
Defrosting dehumidifier and runner type dehumidifier defrosting method Download PDFInfo
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- CN106949572B CN106949572B CN201710141524.6A CN201710141524A CN106949572B CN 106949572 B CN106949572 B CN 106949572B CN 201710141524 A CN201710141524 A CN 201710141524A CN 106949572 B CN106949572 B CN 106949572B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F2110/00—Control inputs relating to air properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Drying Of Gases (AREA)
Abstract
The invention relates to a defrosting dehumidifier and a runner type dehumidifier defrosting method, and belongs to the technical field of air dehumidifying equipment. According to the defrosting dehumidifier and the rotating wheel type dehumidifier defrosting method, the regeneration area of the rotating wheel or part of the regeneration air of the heating device is mixed with the air of the air inlet channel and passes through the evaporator, so that the temperature of the air entering the evaporator is increased, the evaporation temperature of the evaporator is increased, and the evaporator is prevented from frosting. Thereby solving the technical problem of frosting of the evaporator of the dehumidifier.
Description
Technical Field
The invention relates to a defrosting dehumidifier and a runner type dehumidifier defrosting method, and belongs to the technical field of air dehumidifying equipment.
Background
The rotary wheel type dehumidifier is a common dehumidifier at present, and is divided into a dehumidification process and a regeneration process, and the working principle is as follows: the dehumidification process includes, air supply equipment takes place the heat exchange with refrigeration cycle's refrigerant at the evaporimeter from the surface of air inlet channel flow through the evaporimeter with the air, and the cooling in the evaporimeter, the moisture in the air will condense after the temperature drop, and when the moisture absorption zone time through the runner, moisture in the air is adsorbed on the runner, and the air is dried and from air outlet channel discharge, and then send into the use area. The regeneration process comprises the steps that regeneration air enters the condenser through the regeneration air inlet channel to exchange heat with a refrigerant of the refrigeration cycle system, the temperature of the regeneration air rises in the condenser, and then the regeneration air enters the regeneration area of the rotating wheel to take away moisture adsorbed on the moisture absorption area and is discharged from the regeneration air outlet channel. The rotating wheel usually adopts a silica gel or a composite rotating wheel formed by combining a molecular sieve rotating wheel and a silica gel molecular sieve, and the rotating wheel continuously rotates in the working process, so that the rotating wheel is switched between a moisture absorption area and a regeneration area, and the air is continuously dehumidified. For example, chinese patent document CN104913408A is a dehumidifier with a heat pump.
However, when the ambient temperature is low due to seasonal changes, the temperature of the air entering the evaporator is too low (when the temperature of the evaporator inlet is too low, and the surface temperature of the evaporator fins is about less than 0 ℃), and in this case, the surface of the evaporator for cooling and refrigerating the air is prone to frosting, and the evaporator can be affected after frosting.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the technical problem of frosting of an evaporator of a dehumidifier, a defrosting dehumidifier and a defrosting method of a wheel type dehumidifier are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a defrosting dehumidifier, comprising:
the air conditioner comprises an evaporator for cooling sucked air, a rotating wheel capable of adsorbing moisture, a heating device for heating regenerated air, and a refrigeration cycle system for cooling air passing through the evaporator;
after the air is cooled by the evaporator from the air inlet channel, the air passes through the moisture absorption area of the rotating wheel and is sent into a use area from the air outlet channel;
the regenerated air is heated by the heating device from the regenerated air inlet channel, passes through the regeneration area of the rotating wheel and is discharged from the regenerated air outlet channel;
the regenerated air outlet channel or the pipeline between the heating device and the rotating wheel is also communicated with the air inlet channel through a defrosting channel, and the defrosting channel is provided with a first valve.
Preferably, in the defrosting dehumidifier of the present invention, the defrosting channel is further communicated with a pipeline between the heating device and the rotating wheel;
and/or
The air outlet channel is also communicated with the regeneration air inlet channel through a third valve.
Preferably, according to the defrosting dehumidifier disclosed by the invention, a second valve is arranged on the air inlet channel, a second temperature sensor is arranged in front of the evaporator, and a third temperature sensor is arranged between the evaporator and the rotating wheel.
Preferably, in the defrosting dehumidifier of the present invention, the heating device is a condenser in a refrigeration cycle system.
Preferably, according to the defrosting dehumidifier of the present invention, a temperature sensor is disposed on an outer wall of the evaporator and/or the air inlet channel.
The invention also provides a defrosting method of the wheel type dehumidifier, which comprises the following steps:
detecting whether the temperature of the evaporator fins is less than or equal to zero;
and if the temperature of the evaporator fins is reduced to be close to zero, introducing part of the regeneration air passing through the regeneration zone of the rotating wheel into the air inlet channel of the evaporator.
Preferably, the method for defrosting a rotary dehumidifier of the present invention adjusts the temperature and/or humidity of the regeneration air introduced into the evaporator by mixing a part of the regeneration air passing through the regeneration zone of the rotary with the regeneration air passing through the heating device.
Preferably, in the defrosting method of the rotary dehumidifier of the present invention, the temperature and/or humidity of the regeneration air introduced into the evaporator is adjusted by mixing the regeneration air passing through the heating device and a part of the air discharged from the air outlet channel.
Preferably, in the defrosting method of the rotary dehumidifier of the present invention, a part of air discharged from the air outlet channel is first mixed with the regeneration air in the regeneration air inlet channel and is heated by the heating device.
Preferably, in the defrosting method of the rotary dehumidifier of the invention, the temperature of the regeneration air introduced into the evaporator is between 40 and 70 ℃, and the absolute humidity is between 25 and 45 g/Kg.
The beneficial effects of the invention are:
(1) according to the defrosting dehumidifier, when the temperature of the external environment is low due to seasonal changes, the temperature of air entering the evaporator is too low, the air at the outlet of the evaporator is lower, and when the temperature of the air at the outlet of the evaporator is lower, the temperature of the fins of the evaporator is probably below 0 ℃ in a cooling mode, so that the evaporator is easy to frost. And the regenerated gas through having passed through heating device or runner has certain heat, and regeneration air outlet channel still passes through defrosting channel intercommunication with air inlet channel, introduces some regenerative gas that has the heat through the evaporimeter, mixes with air inlet channel's air, has improved the air temperature who gets into the evaporimeter, has just also improved the evaporating temperature of evaporimeter, prevents to frost.
(2) According to the defrosting method of the rotary wheel type dehumidifier, part of the regenerated air in the regeneration area of the rotary wheel is introduced into the evaporator and is mixed with the air in the air inlet channel, so that the temperature of the air entering the evaporator is increased, the evaporation temperature of the evaporator is increased, and frosting is prevented.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
Fig. 1 is a schematic structural view of a defrosting dehumidifier in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a modification of the defrosting dehumidifier of embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a defrosting dehumidifier in embodiment 2 of the present invention;
fig. 4 is a schematic structural view of a defrosting dehumidifier according to embodiment 3 of the present invention.
The reference numbers in the figures are:
1-an evaporator; 2-rotating wheel; 3-a condenser; 4-a refrigeration cycle system; 10-air inlet channel; 11-air outlet channel; 20-a regeneration air inlet channel; 21-a regenerated air outlet channel; 30-a defrost channel; 31-a first valve; 32-a second valve; 33-a third valve; 41-temperature/humidity sensor; 42-a first temperature sensor; 43-a second temperature sensor; 44-third temperature sensor.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
The present embodiment provides a defrosting dehumidifier, as shown in fig. 1 or fig. 2, including:
an evaporator 1 for cooling sucked air, a rotating wheel 2 capable of adsorbing moisture, a heating device 3 for heating regenerated air, and a refrigeration cycle system 4 for cooling air passing through the evaporator 1 (the refrigeration cycle system 4 is the prior art, and the structure is not described again);
air is cooled by the evaporator 1 from the air inlet channel 10, passes through the moisture absorption area of the rotating wheel 2 and is sent to a use area from the air outlet channel 11;
the temperature of the regenerated air is raised through the condenser 3 from the regenerated air inlet channel 20, and the regenerated air passes through the regeneration area of the runner 2 and is discharged from the regenerated air outlet channel 21;
the regeneration air outlet channel 21 or the pipeline between the heating device 3 and the rotating wheel 2 is also communicated with the air inlet channel 10 through a defrosting channel 30, and the defrosting channel 30 is provided with a first valve 31.
When the outside environment temperature is low due to seasonal changes, the temperature of the air entering the evaporator 1 is too low, the air at the outlet of the evaporator 2 is lower, and when the temperature of the air at the outlet of the evaporator 1 reaches about 10 ℃, the temperature of the fins of the evaporator 1 is probably below 0 ℃ in a cooling mode, and the evaporator 1 is easy to frost. And through having certain heat with the regeneration gas who has passed through heating device 3 or runner 2, regeneration air outlet channel 21 still passes through defrosting channel 30 intercommunication with air inlet channel 10, and the regeneration gas that flows out from runner 2 regeneration area is partly introduced into evaporimeter 1, mixes with the air of air inlet channel 10, has improved the air temperature who gets into evaporimeter 1, has just also improved the evaporating temperature of evaporimeter 1, prevents to frost. The air of the same temperature, the humidity heat more greatly is more, consequently, the air that needs certain humidity can heat well, generally directly gets gas from heating device 3 rear end, and gets gas from runner 2 rear end, only when the gas after through heating device 3 has had higher humidity, just directly gets gas behind heating device 3.
Example 2
In this embodiment, as shown in fig. 3, for improvement based on embodiment 1, a defrosting channel 30 is further communicated with a pipeline between the heating device 3 and the rotating wheel 2.
The regeneration air outlet channel 21 is also communicated with the air inlet channel 10 through the defrosting channel 30, and the regeneration air is rich in moisture and has certain temperature after passing through the regeneration area of the rotating wheel 2. This part of the regeneration air is again introduced into the evaporator 1, and the moisture which is equivalent to the originally removed moisture is again returned to the moisture absorption region and is again removed once, so that if the humidity of the regeneration air is too high, a large amount of moisture is repeatedly subjected to the dehumidification operation, which is disadvantageous to the dehumidification process, resulting in inefficiency. Therefore, part of the regeneration air which is directly taken from the heating device 3 and does not pass through the rotating wheel 2 is mixed with the regeneration air which passes through the regeneration area of the rotating wheel 2, and the humidity of the regeneration air which does not pass through the rotating wheel 2 is smaller than that of the regeneration air which passes through the regeneration area of the rotating wheel 2, so that the humidity can be adjusted through the mixing of the regeneration air and the regeneration air, and meanwhile, the temperature of the part of the regeneration air can be ensured through the heating of the heating device 3, and the effect of increasing the temperature of the gas entering the evaporator 1 can be well achieved. Researches show that the temperature of the regeneration air introduced into the evaporator 1 is 40-70 ℃, the absolute humidity is 25-45g/Kg, the regeneration air has more heat energy, and meanwhile, the excessive moisture can be prevented from being repeatedly dehumidified, and the dehumidification effect is highest.
Example 3
In this embodiment, as shown in fig. 4, for a further improvement on embodiment 2, the air outlet channel 11 is further communicated with the regeneration air inlet channel 20 through a third valve 33.
When the humidity of air itself is also too big, the regeneration air that does not pass through runner 2 behind heating device 3 mixes also can't reach corresponding humidity requirement with the regeneration air through the 2 regeneration areas of runner, and at this moment, need obtain the gas that humidity is lower, and the gas that air outlet channel 11 spent gas is through dry gas, consequently mixes three kinds of gases, can guarantee humidity.
It should be noted that the heating device 3 in embodiments 1 to 3 is a condenser in a refrigeration cycle, and the heating device 3 may be an electric heating, a steam heating, or a natural gas heating. A first temperature sensor 42 is arranged on the outer wall of the evaporator 1. When the first temperature sensor 42 senses that the temperature of the outer wall of the evaporator 1 is less than or equal to 0 ℃, the first valve 31 is opened, so that the defrosting channel 30 is conducted.
The air intake channel 10 is further provided with a second valve 32, and the first valve 31, the second valve 32 and the third valve 33 are all flow regulating valves. A temperature/humidity sensor 41 may be further disposed on the defrosting channel 30, and the opening, closing and flow rate adjustment of the first valve 31, the second valve 32 and the third valve 33 are controlled by sensing the temperature and humidity on the defrosting channel 30 through the temperature/humidity sensor 41 to ensure that the humidity is within a control range, and a third temperature sensor 44 is disposed between the evaporator 1 and the runner 2 to further measure the temperature of the air before passing through the runner 2.
If the temperature of the fins of the evaporator 1 is close to zero degrees centigrade for a period, the opening degree of the first valve 31 is adjusted by adopting a PID adjusting method, and the temperature of the fins of the evaporator 1 is ensured to be higher than 0 ℃ all the time.
The outlet temperature of the evaporator 1 is measured by the third temperature sensor 44, and if the outlet temperature of the evaporator 1 is too low (lower than about 10 ℃), the opening degree of the first valve 31 is increased by the first valve 31, and high-temperature air is introduced, so that the inlet air temperature of the evaporator 1 is increased until the outlet temperature of the evaporator 1 is higher than 10 ℃.
Example 4
The embodiment provides a defrosting method of a wheel type dehumidifier, which comprises the following steps:
s1: detecting whether the temperature of the fins of the evaporator 1 is less than or equal to zero;
s2: if the temperature of the fins of the evaporator 1 is less than or equal to zero, introducing part of the regeneration air passing through the regeneration zone of the runner 2 into the evaporator 1, and controlling the temperature of the regeneration air introduced into the evaporator 1 to be 40-70 ℃ and the absolute humidity to be 25-45 g/Kg;
if the absolute humidity of the regeneration air passing through the regeneration zone of the rotor 2 is higher than 25-45g/m 3 When the temperature and humidity of the regeneration air passing through the regeneration area of the runner 2 are measured by the temperature/humidity sensor 41 when the first valve 31 is a three-way valve (the first valve 31 is only communicated with the regeneration air outlet channel 21 and the evaporator 1, and the upper and lower ports of the first valve 31 in fig. 2 are communicated), the temperature and/or humidity of the regeneration air passing through the regeneration area of the runner 2 and the regeneration air passing through the heating device 3 are mixed to adjust the temperature and/or humidity of the regeneration air passing through the evaporator 1 (the first valve 31 opens a port communicated with the rear end pipeline of the heating device 3, and the port on the right side of the valve in fig. 2);
if the absolute humidity of the regeneration air passing through the heating device 3 is higher than a set value of 25-45g/Kg (the first valve 31, which is a three-way valve, communicates only with the rear end pipe of the heating device 3 and the evaporator 1, and the temperature/humidity sensor 41 measures the temperature and humidity of the regeneration air passing through the regeneration zone of the heating device 3 directly when the right and lower ports of the first valve 31 in fig. 2 communicate with each other), the regeneration air passing through the heating device 3 and a part of the air discharged from the air outlet passage 11 are mixed to adjust the temperature and/or humidity of the regeneration air introduced into the evaporator 1 (the third valve 33 is opened).
The temperature fed to the evaporator 1 is measured by the second temperature sensor 43, and if the temperature fed to the evaporator 1 is too low, the temperature is raised by controlling the heating power of the heating device 3.
If the temperature of the outer wall of the evaporator 1 is continuously less than or equal to zero degrees centigrade for a period of time, the air inlet channel 10 is closed (the second valve 32 is closed), and the air heated by the heating device 3 is completely filled in the evaporator 1 until the temperature of the fins of the evaporator 1 is higher than 0 ℃.
Effects of the embodiment
The dehumidifier with the same dehumidification capacity is selected for the experiment, the temperature is 5 ℃, the work is carried out in the environment with the same space, the time is used when the detection humidity is reduced by half, and the heating power of the heating device is equal.
The experimental effect shows that the dehumidification effect is best when the temperature of the gas introduced through the defrosting channel is 40-70 ℃ and the absolute humidity is 25-45 g/Kg. When the humidity is too low, the heating effect on the evaporator 1 is not good, when the humidity is too high, the efficiency is reduced due to repeated dehumidification of the moisture, when the temperature is too low, the good heating effect cannot be achieved, and when the temperature is too high, the temperature of the gas entering the evaporator is too high, so that the refrigeration effect is influenced.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A runner type defrosting dehumidifier is characterized by comprising:
the air conditioner comprises an evaporator (1) for cooling sucked air, a rotating wheel (2) capable of adsorbing moisture, a heating device (3) for heating regenerated air, and a refrigeration cycle system (4) for cooling the air passing through the evaporator (1);
air is cooled by the evaporator (1) from the air inlet channel (10), passes through the moisture absorption area of the rotating wheel (2) and is sent to a use area from the air outlet channel (11);
the temperature of the regenerated air is raised through the heating device (3) from the regenerated air inlet channel (20), and the regenerated air passes through the regeneration area of the rotating wheel (2) and is discharged from the regenerated air outlet channel (21);
the regenerated air outlet channel (21) and a pipeline between the heating device (3) and the rotating wheel (2) are also communicated with the air inlet channel (10) through a defrosting channel (30), and a first valve (31) is arranged on the defrosting channel (30);
the air outlet channel (11) is also communicated with the regeneration air inlet channel (20) through a third valve (33);
a second valve (32) is arranged on the air inlet channel (10);
the temperature and the humidity on the defrosting channel (30) are sensed by a temperature/humidity sensor (41) to control the opening, the closing and the flow regulation of the first valve (31), the second valve (32) and the third valve (33) so as to ensure that the humidity is in a control range.
2. A runner-type defrost dehumidifier according to claim 1 characterized in that a second temperature sensor (43) is arranged in front of said evaporator (1) and a third temperature sensor (44) is arranged between said evaporator (1) and said runner (2).
3. A runner-type defrost dehumidifier as claimed in claim 1 or 2, characterised in that said heating means (3) is a condenser in a refrigeration cycle.
4. A runner-type dehumidifier according to claim 1 or 2 wherein a temperature sensor is provided on the outer wall of the evaporator (1) and/or on the air intake duct (10).
5. A method of defrosting a rotary dehumidifier, using a rotary dehumidifier according to any of claims 1 to 4, comprising the steps of:
detecting whether the temperature of fins of the evaporator (1) is less than or equal to zero;
if the temperature of the fins of the evaporator (1) is reduced to be close to zero, part of the regeneration air passing through the regeneration zone of the rotating wheel (2) is introduced into the air inlet channel of the evaporator (1).
6. A runner dehumidifier defrosting method according to claim 5 wherein the temperature and/or humidity of the regeneration air to the evaporator (1) is adjusted by mixing part of the regeneration air passing through the regeneration zone of the runner (2) with the regeneration air passing through the heating means (3).
7. A method according to claim 5, characterised in that the temperature and/or humidity of the regeneration air to the evaporator (1) is adjusted by mixing the regeneration air passing through the heating device (3) and part of the air discharged from the air outlet channel (11).
8. A method as claimed in claim 7, characterised in that the temperature T of the regeneration air introduced into the evaporator (1) is 40-70 ℃ and the absolute humidity is 25-45 g/Kg.
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| CN201710141524.6A CN106949572B (en) | 2017-03-10 | 2017-03-10 | Defrosting dehumidifier and runner type dehumidifier defrosting method |
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| CN107524196B (en) * | 2017-07-28 | 2019-10-01 | 浙江大学 | A kind of novel energy-conserving runner air water-intaking method |
| CN115234981B (en) * | 2022-07-05 | 2023-09-26 | 青岛海信日立空调系统有限公司 | Air conditioner |
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| JP2008080233A (en) * | 2006-09-27 | 2008-04-10 | Matsushita Electric Ind Co Ltd | Dehumidifier |
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| CN202040908U (en) * | 2011-03-23 | 2011-11-16 | 广东申菱空调设备有限公司 | Condensation heat recovery compound dehumidifier |
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| CN203571919U (en) * | 2013-09-25 | 2014-04-30 | 杭州仟井电器制造有限公司 | Rotary dehumidifier |
| CN203928192U (en) * | 2014-06-23 | 2014-11-05 | 青岛海尔空调器有限总公司 | The air-conditioner outdoor unit with air pretreatment function |
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