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CN110779081B - A constant temperature and humidity air conditioning unit with rapid dehumidification structure and working method thereof - Google Patents

A constant temperature and humidity air conditioning unit with rapid dehumidification structure and working method thereof Download PDF

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Publication number
CN110779081B
CN110779081B CN201911161421.1A CN201911161421A CN110779081B CN 110779081 B CN110779081 B CN 110779081B CN 201911161421 A CN201911161421 A CN 201911161421A CN 110779081 B CN110779081 B CN 110779081B
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China
Prior art keywords
refrigerant
evaporator
temperature
low
compressor
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CN110779081A (en
Inventor
陈越增
王立明
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Ningbo Hicon Industry Co ltd
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Ningbo Hicon Industry Co ltd
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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
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
    • 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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • 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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • 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
    • F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

一种具快速除湿结构的恒温恒湿空调机组及其工作方法，属于空调技术领域，包括压缩机、冷疑器结构、节流装置、蒸发器、室内送风机、冷媒通路、分流三通；冷媒通路包括冷媒通路A、冷媒通路B、冷媒通路C、冷媒通路D、冷媒通路E；蒸发器包括上部蒸发器和下部蒸发器；蒸发器的出气端设置有冷媒连通管，冷媒连通管的中间设置有单向阀；节流装置包括电子膨胀阀A和电子膨胀阀B；从分流三通至电子膨胀阀A的冷媒通路D上设置有电磁阀A,从分流三通至电子膨胀阀B的冷媒通路E上设置有电磁阀B。本发明的有益效果是：结构简单、除湿效果好、不会产生结冰结霜、有效的防止蒸发温度过低而造成结冰结霜现象，同时又能满足快速除湿的要求。

A constant temperature and humidity air conditioning unit with a rapid dehumidification structure and a working method thereof, belonging to the technical field of air conditioning, comprises a compressor, a refrigeration device structure, a throttling device, an evaporator, an indoor air blower, a refrigerant passage, and a diversion tee; the refrigerant passage comprises a refrigerant passage A, a refrigerant passage B, a refrigerant passage C, a refrigerant passage D, and a refrigerant passage E; the evaporator comprises an upper evaporator and a lower evaporator; a refrigerant connecting pipe is arranged at the outlet end of the evaporator, and a check valve is arranged in the middle of the refrigerant connecting pipe; the throttling device comprises an electronic expansion valve A and an electronic expansion valve B; a solenoid valve A is arranged on the refrigerant passage D from the diversion tee to the electronic expansion valve A, and a solenoid valve B is arranged on the refrigerant passage E from the diversion tee to the electronic expansion valve B. The beneficial effects of the present invention are: simple structure, good dehumidification effect, no ice and frost, effective prevention of ice and frost caused by too low evaporation temperature, and meeting the requirements of rapid dehumidification.

Description

Constant temperature and humidity air conditioning unit with rapid dehumidification structure and working method thereof
Technical Field
The invention relates to a constant temperature and humidity air conditioning unit and a working method thereof, in particular to a constant temperature and humidity air conditioning unit with a rapid dehumidification structure and a working method thereof, and belongs to the technical field of air conditioning.
Background
The dehumidification principle of the air conditioning unit is to utilize the principle that moisture in air can be condensed into water when the moisture meets cold. When the refrigerant in the evaporator of the air conditioner evaporates, a great amount of heat is absorbed, so that the surface temperature of the evaporator is reduced greatly, the water vapor in the indoor air is liquefied into water when encountering cold, and the condensed water flows through the water outlet pipe to be discharged out of the room, so that part of moisture in the room air is removed.
At present, all the dehumidification modes of the constant temperature and humidity machine adopt full-cooling refrigeration dehumidification, and in the dehumidification process, the evaporation temperature of the evaporator is high, the dehumidification amount is small, and a large amount of refrigeration amount is used for cooling air. When the temperature has stabilized, full cold dehumidification would necessitate running a large amount of reheat electric heating to stabilize the temperature. This run-time does not provide rapid dehumidification. And the use of reheat electrical heating consumes a significant amount of energy. In the conventional refrigeration operation, the constant temperature and humidity air conditioning unit has very low latent cold for dehumidification, 20-30%, and the air conditioner in the machine room is 5-9%.
The application publication number is CN 103968619A, the application number is 2013100410196, the heat exchanger is additionally arranged on the first refrigerant passage and the second refrigerant passage, and the second cooling and the temperature reduction can be carried out, so that the aim of rapid dehumidification is fulfilled. The heat exchanger is added in the patent application of the air conditioner with rapid dehumidification, so that the whole structure becomes complex, the volume and the cost of the product are increased, and the air conditioner is unfavorable for market sales competition.
Disclosure of Invention
The invention aims to overcome the defects that rapid dehumidification cannot be provided, the structure is complex, the volume is overlarge and the cost is increased in the prior art, and provides the constant temperature and humidity air conditioning unit with the rapid dehumidification structure, which can achieve the purposes of simple structure, good dehumidification effect, no icing and frosting, and effectively preventing the icing and frosting caused by too low evaporation temperature, and can meet the requirement of rapid dehumidification.
In order to achieve the aim, the invention adopts the technical scheme that the constant temperature and humidity air conditioning unit with the rapid dehumidification structure comprises a compressor, a condenser structure, a throttling device, an evaporator, an indoor air feeder and a refrigerant passage, wherein the indoor air feeder is arranged above the evaporator; the compressor, the throttling device and the evaporator form an indoor unit, the condenser structure comprises an outdoor heat exchanger and an outdoor heat dissipation fan arranged outside the outdoor heat exchanger, and the outdoor heat exchanger and the outdoor heat dissipation fan form an outdoor unit; the outdoor heat exchanger comprises a heat exchanger air inlet end and a heat exchanger outlet end, wherein the refrigerant passage comprises a refrigerant passage A and a refrigerant passage B, the refrigerant passage A is connected from the air outlet end of the evaporator to the air inlet end of the compressor, and the refrigerant passage B is connected from the air outlet end of the compressor to the air inlet end of the heat exchanger;
The evaporator comprises an upper evaporator and a lower evaporator, a partition plate is arranged between the upper evaporator and the lower evaporator, the upper evaporator and the lower evaporator are arranged in a superposition manner through the partition plate, and the upper evaporator and the lower evaporator are symmetrical up and down by taking the partition plate as a center;
The air outlet end of the evaporator is provided with a refrigerant communicating pipe, a one-way valve is arranged in the middle of the refrigerant communicating pipe and divides the refrigerant communicating pipe into an upper half part of the refrigerant communicating pipe and a lower half part of the refrigerant communicating pipe, the upper half part of the refrigerant communicating pipe is communicated with the air outlet end of the upper evaporator, and the lower half part of the refrigerant communicating pipe is communicated with the air outlet end of the lower evaporator;
The throttling device comprises an electronic expansion valve A and an electronic expansion valve B, wherein the electronic expansion valve A is arranged at the inlet end of the upper evaporator, and the electronic expansion valve B is arranged at the inlet end of the lower evaporator;
The refrigerant passage further comprises a refrigerant passage C, a refrigerant passage D and a refrigerant passage E, wherein the refrigerant passage C is connected from the outlet end of the heat exchanger to the split tee, the split tee is connected to the electronic expansion valve A and the electronic expansion valve B, the refrigerant passage D is connected to the electronic expansion valve B, and the refrigerant passage E is connected in parallel;
The electromagnetic valve A is arranged on a refrigerant passage D from the shunt tee to the electronic expansion valve A, and the electromagnetic valve B is arranged on a refrigerant passage E from the shunt tee to the electronic expansion valve B.
The outdoor heat exchanger comprises copper pipes and aluminum fins, the manufacturing of the outdoor heat exchanger is formed by mechanically expanding copper pipes in series with the aluminum fins, the inner ring and the outer ring are respectively expanded and then spliced together to be bent and formed, the air tightness test is carried out on the outdoor heat exchanger after the manufacturing is finished, the pressure is 4.3Mpa, and the fin spacing is 1.7mm.
The refrigerant flow control device comprises a refrigerant passage B from an air outlet end of a compressor to an air inlet end of a heat exchanger, wherein the refrigerant passage B is provided with a stop valve A and a stop valve B, the stop valve A is indoors, the stop valve B is outdoors, the refrigerant passage C from an outlet end of the heat exchanger to a split tee joint is provided with a stop valve C and a stop valve D, the stop valve C is outdoors, the stop valve D is indoors, the product types of the stop valve A and the stop valve B are FJ16JK-3-NBHK-00, and the product types of the stop valve C and the stop valve D are FJ13JK-3-NBHK-00.
The compressor is of the type ZR144KC-TFP, the outdoor heat dissipation fan is of the type DS760C-190B4.EC, the shunt tee is of the type 16T-diameter equal-diameter copper tee, the electronic expansion valve A and the electronic expansion valve B are of the type DPF (S03) 4.0C-01, and the solenoid valve A and the solenoid valve B are of the type 200RB7T7.
An oil separator is arranged on the refrigerant passage B and between the air suction end of the compressor at the outlet end of the heat exchanger and the stop valve A, and separates lubricating oil in high-temperature and high-pressure refrigerant gas discharged by the compressor to ensure that the device runs safely and efficiently, and the product model of the oil separator is Emerson oil separator AW55877.
And a liquid reservoir is arranged on the refrigerant passage C and between the air suction end of the compressor and the stop valve C, and can play a role in buffering the refrigerant and protect the compressor, and the product model of the liquid reservoir is liquid reservoir CYQ-4.2.
And a dry filter is arranged on the refrigerant passage C and between the stop valve D and the split tee, the dry filter can filter impurities and has a purifying effect on refrigerant media, and the product model of the dry filter is dry filter EK-165S.
The refrigerant passage A is provided with a gas-liquid separator between the gas outlet end of the evaporator and the gas suction end of the compressor, the gas-liquid separator is used for treating gas containing a small amount of condensate, so that the gas phase purification of low-temperature and low-pressure refrigerant gas flowing from the gas outlet end of the evaporator to the gas suction end of the compressor is realized, and the product model of the gas-liquid separator is QFQ-5.0.
The working method of the constant temperature and humidity air conditioning unit with the rapid dehumidification structure comprises 3 working modes:
(1) The working mode 1, namely a working mode of using the lower half part of the evaporator to quickly dehumidify, wherein a stop valve A, a stop valve B, a stop valve C and a stop valve D are opened, a solenoid valve A and an electronic expansion valve A are opened, and a solenoid valve B and an electronic expansion valve B are closed;
The compressor is started, the low-temperature low-pressure refrigerant gas input from the compressor evaporator is compressed into high-temperature high-pressure refrigerant gas, the high-temperature high-pressure refrigerant gas is discharged from the air outlet end of the compressor, lubricating oil in the high-temperature high-pressure refrigerant gas discharged from the compressor is separated along a refrigerant passage B and through the oil separator, the high-temperature high-pressure refrigerant gas enters the heat exchanger from the air inlet end of the heat exchanger through a stop valve A and a stop valve B and is changed into normal-temperature high-pressure refrigerant liquid to be discharged from the outlet end of the heat exchanger, and meanwhile, the heat is discharged into the outdoor air environment through forced convection of the outdoor heat dissipation fan;
the refrigerant liquid with normal temperature and high pressure continuously flows forwards along the refrigerant passage B, passes through the liquid accumulator and has buffer function, passes through the refrigeration pressure switch which can play the role of pressure control and protection, forwards passes through the stop valve C and the stop valve D, flows through the dry filter, filters out impurities in the refrigerant liquid, and forwards flows to the diversion tee joint;
The refrigerant liquid with normal temperature and high pressure flows downwards from the three-way valve, passes through the electromagnetic valve A and reaches the electronic expansion valve A along the refrigerant passage D to be throttled and depressurized to become refrigerant liquid with low temperature and low pressure, then the refrigerant liquid with low temperature and low pressure enters the lower evaporator to absorb heat in air in about 1/2 area of the evaporator, the temperature of the air is lowered to be lower and is close to 0 ℃, the refrigerant liquid with low temperature and low pressure becomes refrigerant gas with low temperature and low pressure, and meanwhile, cold air is discharged into indoor air environment through forced convection of the indoor blower;
The unit adopting the rapid dehumidification structure has the advantages that the actual test effect is about 50% of design data according to constant temperature and humidity and is used for dehumidification, 40% of the design data according to the air conditioner in a machine room is used for dehumidification, and the optimal dehumidification effect can be achieved by adopting a rapid dehumidification mode;
Finally, the refrigerant gas with low temperature and low pressure enters from the air outlet end of the evaporator along the refrigerant passage A from the air suction end of the compressor and returns to the compressor from the lower half part of the refrigerant communicating pipe, thus continuously circulating and achieving the purposes of indoor refrigeration and rapid dehumidification;
(2) The working mode 2, namely a working mode of using the upper half part of the evaporator to perform rapid dehumidification, wherein a stop valve A, a stop valve B, a stop valve C and a stop valve D are opened, a solenoid valve A and an electronic expansion valve A are closed, and a solenoid valve B and an electronic expansion valve B are opened;
The refrigerant liquid with normal temperature and high pressure flows upwards from the three-way valve, passes through the electromagnetic valve B and reaches the electronic expansion valve B along the refrigerant passage E to be throttled and depressurized to become refrigerant liquid with low temperature and low pressure, and then the refrigerant liquid with low temperature and low pressure enters the upper evaporator to absorb heat in the air in the area of about 1/2 of the evaporator, so that the air temperature is reduced to be lower and close to 0 ℃, and the refrigerant liquid with low temperature and low pressure becomes refrigerant gas with low temperature and low pressure;
Finally, the low-temperature low-pressure refrigerant gas downwards passes through the one-way valve from the upper half part of the refrigerant communicating pipe to the lower half part of the refrigerant communicating pipe, then passes through the air outlet end of the evaporator, enters from the air suction end of the compressor along the refrigerant passage A and returns to the compressor;
The rest is the same as the working mode 1;
(3) The working mode 3 is a working mode of simultaneously using the upper half part and the lower half part of the evaporator to perform full-cooling refrigeration dehumidification, wherein a stop valve A, a stop valve B, a stop valve C and a stop valve D are opened, and an electromagnetic valve A, an electronic expansion valve A, an electromagnetic valve B and an electronic expansion valve B are simultaneously opened;
The refrigerant liquid with normal temperature and high pressure is divided into 2 parts, one part of the refrigerant liquid with normal temperature and high pressure is downwards from the three-way valve, passes through the electromagnetic valve A and reaches the electronic expansion valve A along the refrigerant passage D to be throttled and depressurized to become low-temperature low-pressure refrigerant liquid;
the other part of the refrigerant liquid with normal temperature and high pressure is throttled and depressurized along a refrigerant passage E, passes through an electromagnetic valve B and reaches an electronic expansion valve B to become low-temperature and low-pressure refrigerant liquid, then enters an upper evaporator, absorbs heat in air in the whole area of the evaporator to reduce the air temperature, becomes low-temperature and low-pressure refrigerant gas, passes through a one-way valve from the upper half part of a refrigerant communicating pipe downwards to the lower half part of the refrigerant communicating pipe, is mixed with the normal-temperature and high-pressure refrigerant liquid which flows from the lower evaporator to the lower half part of the refrigerant communicating pipe, and enters from the air suction end of the compressor and returns to the compressor through the air outlet end of the evaporator along the refrigerant passage A;
in the working mode 3, the temperature is reduced to the condensation point of the water in the air, and the condensed water is crystallized on the surface of the indoor evaporator to achieve the aim of dehumidification, wherein the area of the evaporator is large, about 20-30% of the evaporator is used for dehumidification according to the design data of constant temperature and constant humidity, and 5-10% of the evaporator is used for dehumidification according to the air conditioner of a machine room;
The same as the working mode 1.
The fast dehumidification adopts 2 electromagnetic valves and 2 electronic expansion valves for shunt control, and when the fast dehumidification is operated, the lower half part of the evaporator can be used, and the upper half part of the evaporator can also be used, and when the fast dehumidification refrigerant is operated at the temperature lower than 0 ℃ for a long time under the mode, the evaporator panel water drops are easy to frost and freeze, and the structure can alternately use the upper part and the lower part of the evaporator, so that the occurrence of the condition of the frost and the ice of the evaporator panel water drops can be prevented, and the requirements of the fast dehumidification can be met.
Compared with the prior art, the invention has the beneficial effects that:
(1) The structure is simple, the main components related to the refrigeration and dehumidification structure of the whole constant temperature and humidity air conditioning unit are only added with a split tee, the evaporator is divided into an upper evaporator and a lower evaporator 2 through a partition plate, electromagnetic valves and electronic expansion valves are respectively arranged in front of the upper evaporator and the lower evaporator, and the purposes of quickly dehumidifying are achieved by utilizing double control of the electromagnetic valves and the electronic expansion to change the heat exchange area and reduce the evaporation temperature;
(2) The invention has good dehumidifying effect, the invention adopts a rapid dehumidifying structure, the latent cold capacity of the constant temperature and humidity air conditioning unit for dehumidifying is improved to more than 50% from 20-30% of the original, and the machine room air conditioner is improved to more than 40% from 5-9% of the original;
(3) The evaporator can not generate icing and frosting, the upper part evaporator and the lower part evaporator can be used as mutual standby and alternate running according to the dehumidification condition, the icing and frosting phenomenon caused by too low evaporation temperature can be effectively prevented, and the requirement of rapid dehumidification can be met.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
FIG. 3 is a front view enlarged of the outdoor heat exchanger structure;
FIG. 4 is a schematic diagram of the combined structure and operation of the three-way valve, the throttling device and the evaporator in the working mode 1;
FIG. 5 is a schematic diagram of the combined structure and operation of the three-way valve, the throttle device and the evaporator in the working mode 2;
Fig. 6 is a schematic diagram of the combined structure and operation of the three-way valve, the throttle device and the evaporator in the operation mode 3.
The reference numerals indicate that the compressor 1, the compressor suction port 101, the compressor discharge port 102, the condenser structure 2, the outdoor heat exchanger 201, the copper pipe 20101, the aluminum fin 20102, the outdoor heat radiation fan 202, the heat exchanger intake port 203, the heat exchanger outlet port 204, the throttle device 3, the electronic expansion valve a 301, the electronic expansion valve B302, the evaporator 4, the upper evaporator 401, the lower evaporator 402, the partition 403, the indoor blower 5, the refrigerant passage 6, the refrigerant passage a 601, the refrigerant passage B602, the refrigerant passage C603, the refrigerant passage D604, the refrigerant passage E605, the bypass tee 7, the refrigerant communication pipe 8, the check valve 9, the solenoid valve a 10, the solenoid valve B11, the stop valve a 12, the stop valve B13, the stop valve C14, the stop valve D15, the oil separator 16, the reservoir 17, the dry filter 18, and the gas-liquid separator 19.
Detailed Description
The invention will now be further described with reference to the drawings and specific examples, which are not intended to limit the invention.
As shown in fig. 1 to 6, the constant temperature and humidity air conditioning unit with the rapid dehumidification structure comprises a compressor 1, a condenser structure 2, a throttling device 3, an evaporator 4, an indoor air blower 5 and a refrigerant passage 6, wherein the indoor air blower 5 is arranged above the evaporator 4, the compressor 1, the throttling device 3 and the evaporator 4 form an indoor unit, the condenser structure 2 comprises an outdoor heat exchanger 201 and an outdoor heat dissipation fan 202 arranged outside the outdoor heat exchanger 201, the outdoor heat exchanger 201 and the outdoor heat dissipation fan 202 form an outdoor unit, the compressor 1 comprises a compressor suction end 101 and a compressor outlet end 102, the outdoor heat exchanger 201 comprises a heat exchanger inlet end 203 and a heat exchanger outlet end 204, the refrigerant passage 6 comprises a refrigerant passage A601 and a refrigerant passage B602, and the refrigerant passage A601 is connected with the compressor suction end 101, the refrigerant passage A601 is connected with the heat exchanger inlet end 203, and the refrigerant passage B602 is connected with the compressor outlet end 102;
The evaporator 4 comprises an upper evaporator 401 and a lower evaporator 402, a partition 403 is arranged between the upper evaporator 401 and the lower evaporator 402, the upper evaporator 401 and the lower evaporator 402 are arranged in an upper-lower superposition manner through the partition 403, and the upper evaporator 401 and the lower evaporator 402 are symmetrical up and down by taking the partition 403 as a center;
The air outlet end of the evaporator 4 is provided with a refrigerant communicating pipe 8, a one-way valve 9 is arranged in the middle of the refrigerant communicating pipe 8, the one-way valve 9 divides the refrigerant communicating pipe 8 into an upper half part of the refrigerant communicating pipe 8 and a lower half part of the refrigerant communicating pipe 8, the upper half part of the refrigerant communicating pipe 8 is communicated with the air outlet end of the upper evaporator 401, and the lower half part of the refrigerant communicating pipe 8 is communicated with the air outlet end of the lower evaporator 402;
The throttling device 3 comprises an electronic expansion valve A301 and an electronic expansion valve B302, wherein the electronic expansion valve A301 is arranged at the inlet end of the upper evaporator 401, and the electronic expansion valve B302 is arranged at the inlet end of the lower evaporator 402;
the refrigerant passage 6 further comprises a refrigerant passage C603, a refrigerant passage D604 and a refrigerant passage E605, wherein the refrigerant passage C603 is connected from the outlet end 204 of the heat exchanger to the split tee 7, the split tee 7 is connected to the electronic expansion valve A301 and the refrigerant passage D604, the split tee 7 is connected to the electronic expansion valve B302 and the refrigerant passage E605, and the refrigerant passage D604 and the refrigerant passage E605 are in parallel connection;
The solenoid valve a 10 is provided in the refrigerant passage D604 from the bypass tee 7 to the electronic expansion valve a 301, and the solenoid valve B11 is provided in the refrigerant passage E605 from the bypass tee 7 to the electronic expansion valve B302.
The outdoor heat exchanger 201 comprises copper tubes 20101 and aluminum fins 20102, the manufacturing of the outdoor heat exchanger 201 is achieved by mechanically expanding copper tubes 20101 in series with the aluminum fins 20102, the inner ring and the outer ring are respectively expanded and then spliced together to be bent and formed, the air tightness test is conducted after the manufacturing of the outdoor heat exchanger 201 is completed, the pressure is 4.3Mpa, and the fin spacing is 1.7mm.
A stop valve A12 and a stop valve B13 are arranged on a refrigerant passage B602 from the compressor outlet end 102 to the heat exchanger inlet end 203, the stop valve A12 is indoor, the stop valve B13 is outdoor, a stop valve C14 and a stop valve D15 are arranged on a refrigerant passage C603 from the heat exchanger outlet end 204 to the split tee 7, the stop valve C14 is outdoor, the stop valve D15 is indoor, the product types of the stop valve A12 and the stop valve B13 are FJ16JK-3-NBHK-00, and the product types of the stop valve C14 and the stop valve D15 are FJ13JK-3-NBHK-00.
The compressor 1 is provided with a ZR144KC-TFP product model, the outdoor heat dissipation fan 202 is provided with a DS760C-190B4.EC product model, the shunt tee joint 7 is provided with a diameter 16T type constant diameter copper tee joint, the electronic expansion valve A301 and the electronic expansion valve B302 are provided with DPF (S03) 4.0C-01 product model, and the solenoid valve A10 and the solenoid valve B11 are provided with 200RB7T7 product model.
An oil separator 16 is arranged on the refrigerant passage B602 and between the compressor suction end 101 and the stop valve A12 at the outlet end 204 of the heat exchanger, the oil separator 16 separates lubricating oil in high-temperature and high-pressure refrigerant gas discharged by the compressor 1 so as to ensure the safe and efficient operation of the device, and the product model of the oil separator 16 is an Emerson oil separator AW55877.
An accumulator 17 is arranged on the refrigerant passage C603 and between the suction end 101 of the compressor and the stop valve C14, the accumulator 17 can play a role of buffering refrigerant and can protect the compressor 1, and the product model of the accumulator 17 is CYQ-4.2.
A dry filter 18 is arranged on the refrigerant passage C603 and between the stop valve D15 and the split tee 7, the dry filter 18 can filter impurities and has a purifying effect on refrigerant media, and the product model of the dry filter 18 is EK-165S.
A gas-liquid separator 19 is arranged on the refrigerant passage a 601 from the air outlet end of the evaporator 4 to the air suction end 101 of the compressor, the gas-liquid separator 19 is used for treating the gas containing a small amount of condensate, so that the gas phase purification of the low-temperature and low-pressure refrigerant gas flowing from the air outlet end of the evaporator 4 to the air suction end 101 of the compressor is realized, and the product model number of the gas-liquid separator 19 is QFQ-5.0.
The working method of the constant temperature and humidity air conditioning unit with the rapid dehumidification structure comprises 3 working modes:
(1) The working mode 1, namely a working mode of using the lower half part of the evaporator 4 to perform rapid dehumidification, wherein a stop valve A12, a stop valve B13, a stop valve C14 and a stop valve D15 are opened, a solenoid valve A10 and an electronic expansion valve A301 are opened, and a solenoid valve B11 and an electronic expansion valve B302 are closed;
The compressor 1 is started, the compressor 1 compresses the low-temperature and low-pressure refrigerant gas input from the evaporator 4 of the compressor 1 into high-temperature and high-pressure refrigerant gas, the high-temperature and high-pressure refrigerant gas is discharged from the air outlet end 102 of the compressor, lubricating oil in the high-temperature and high-pressure refrigerant gas discharged from the compressor 1 is separated along the refrigerant passage B602 and through the oil separator 16, the high-temperature and high-pressure refrigerant gas enters the heat exchanger from the air inlet end 203 of the heat exchanger through the stop valve A12 and the stop valve B13 and is changed into normal-temperature and high-pressure refrigerant liquid to be discharged from the air outlet end 204 of the heat exchanger, and meanwhile, the heat is discharged into the outdoor air environment through forced convection of the outdoor heat dissipation fan 202;
the refrigerant liquid with normal temperature and high pressure continuously flows forwards along the refrigerant passage B602, passes through the liquid storage 17 and has buffer function, passes through the refrigeration pressure switch which can play the role of pressure control and protection, forwards passes through the stop valve C14 and the stop valve D15, flows through the dry filter 18, filters out impurities in the refrigerant liquid, and forwards flows to the diversion tee joint 7;
The refrigerant liquid with normal temperature and high pressure flows downwards from the diversion tee 7 along the refrigerant passage D604, reaches the electronic expansion valve A301 through the electromagnetic valve A10, is throttled and depressurized to become refrigerant liquid with low temperature and low pressure, then enters the lower evaporator 402, absorbs heat in the air in about 1/2 area of the evaporator 4, reduces the air temperature to be lower and is close to 0 ℃, and the refrigerant liquid with low temperature and low pressure becomes refrigerant gas with low temperature and low pressure;
The unit adopting the rapid dehumidification structure has the advantages that the actual test effect is about 50% of design data according to constant temperature and humidity and is used for dehumidification, 40% of the design data according to the air conditioner in a machine room is used for dehumidification, and the optimal dehumidification effect can be achieved by adopting a rapid dehumidification mode;
Finally, the refrigerant gas with low temperature and low pressure enters from the air outlet end of the evaporator 4 from the lower half part of the refrigerant communicating pipe 8 along the refrigerant passage A601 and returns to the compressor 1 from the air suction end 101 of the compressor, thus continuously circulating and achieving the purposes of indoor refrigeration and rapid dehumidification;
(2) The working mode 2, namely a working mode of using the upper half part of the evaporator 4 to perform rapid dehumidification, wherein a stop valve A12, a stop valve B13, a stop valve C14 and a stop valve D15 are opened, a solenoid valve A10 and an electronic expansion valve A301 are closed, and a solenoid valve B11 and an electronic expansion valve B302 are opened;
The refrigerant liquid with normal temperature and high pressure goes upwards from the branch tee 7, passes through the electromagnetic valve B11 and reaches the electronic expansion valve B302 along the refrigerant passage E605 to be throttled and depressurized to become refrigerant liquid with low temperature and low pressure, and then the refrigerant liquid with low temperature and low pressure enters the upper evaporator 401 to absorb heat in the air in about 1/2 area of the evaporator 4, so that the air temperature is reduced to be lower and close to 0 ℃, and the refrigerant liquid with low temperature and low pressure becomes refrigerant gas with low temperature and low pressure;
Finally, the low-temperature low-pressure refrigerant gas passes through the one-way valve 9 downwards from the upper half part of the refrigerant communicating pipe 8 to the lower half part of the refrigerant communicating pipe 8, then passes through the air outlet end of the evaporator 4, enters from the air suction end 101 of the compressor along the refrigerant passage A601 and returns to the compressor 1;
The rest is the same as the working mode 1;
(3) The working mode 3 is a working mode of simultaneously using the upper half part and the lower half part of the evaporator 4 to perform full-cooling refrigeration dehumidification, wherein a stop valve A12, a stop valve B13, a stop valve C14 and a stop valve D15 are opened, and a solenoid valve A10, an electronic expansion valve A301, a solenoid valve B11 and an electronic expansion valve B302 are simultaneously opened;
the refrigerant liquid with normal temperature and high pressure is divided into 2 parts, one part of the refrigerant liquid with normal temperature and high pressure is downwards from the three-way valve 7 and reaches the electronic expansion valve A301 along the refrigerant passage D604 through the electromagnetic valve A10 to be throttled and depressurized to become low-temperature low-pressure refrigerant liquid, then the low-temperature low-pressure refrigerant liquid enters the lower evaporator 402, the evaporator 4 absorbs heat in the air in the whole area to reduce the air temperature, the low-temperature low-pressure refrigerant liquid is changed into low-temperature low-pressure refrigerant gas, and flows to the lower half part of the refrigerant communicating pipe 8;
The other part of the refrigerant liquid with normal temperature and high pressure is upwards from the diversion tee 7, passes through the electromagnetic valve B11 and reaches the electronic expansion valve B302 along the refrigerant passage E605 to be throttled and depressurized to become refrigerant liquid with low temperature and low pressure, then the refrigerant liquid with low temperature and low pressure enters the upper evaporator 401, absorbs heat in the air in the whole area of the evaporator 4 to reduce the air temperature, the refrigerant liquid with low temperature and low pressure becomes refrigerant gas with low temperature and low pressure, then the refrigerant gas with low temperature and low pressure passes through the one-way valve 9 downwards from the upper half part of the refrigerant communicating pipe 8 to the lower half part of the refrigerant communicating pipe 8, then is mixed with the refrigerant liquid with normal temperature and high pressure which has flowed from the lower evaporator 402 to the lower half part of the refrigerant communicating pipe 8, and then enters from the compressor suction end 101 and returns to the compressor 1 along the air outlet end of the evaporator 4;
In the working mode 3, the temperature is reduced to the condensation point of the water in the air, and the condensed water is crystallized on the surface of the indoor evaporator 4 to achieve the aim of dehumidification, wherein the area of the evaporator 4 is large, about 20-30% of the evaporator is used for dehumidification according to the design data of constant temperature and constant humidity, and 5-10% of the evaporator is used for dehumidification according to the air conditioner of a machine room;
The same as the working mode 1.
The rapid dehumidification adopts 2 electromagnetic valves and 2 electronic expansion valves for shunt control, when the rapid dehumidification is operated, the lower half part of the evaporator 4 can be used, the upper half part of the evaporator 4 can also be used, the rapid dehumidification refrigerant operates at the temperature lower than 0 ℃ for a long time in the mode, water drops on the panel of the evaporator 4 are easy to frost and freeze, the upper and lower parts of the evaporator 4 can be alternately used by the structure, the occurrence of the water drop frosting and icing condition of the panel of the evaporator 4 can be prevented, and the requirement of the rapid dehumidification can be met.
The above examples are only preferred embodiments of the present invention, and common variations and substitutions by those skilled in the art within the scope of the technical solution of the present invention should be included in the scope of the present invention.

Claims (10)

1.一种具快速除湿结构的恒温恒湿空调机组，包括压缩机、冷凝器结构、节流装置、蒸发器、室内送风机和冷媒通路，所述室内送风机设置在蒸发器上方；所述压缩机、节流装置和蒸发器组成室内机，所述冷凝器结构包括的室外换热器和设置在室外换热器外侧的室外散热风机，室外换热器和室外散热风机组成室外机；所述压缩机包括压缩机吸气端和压缩机出气端，所述室外换热器包括换热器进气端和换热器出口端；所述冷媒通路包括冷媒通路A和冷媒通路B，从蒸发器的出气端至压缩机吸气端、以冷媒通路A连接,从压缩机出气端至换热器进气端、以冷媒通路B连接，其特征在于：1. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure, comprising a compressor, a condenser structure, a throttling device, an evaporator, an indoor air blower and a refrigerant passage, wherein the indoor air blower is arranged above the evaporator; the compressor, the throttling device and the evaporator constitute an indoor unit, the condenser structure comprises an outdoor heat exchanger and an outdoor heat dissipation fan arranged outside the outdoor heat exchanger, and the outdoor heat exchanger and the outdoor heat dissipation fan constitute an outdoor unit; the compressor comprises a compressor suction end and a compressor outlet end, and the outdoor heat exchanger comprises a heat exchanger inlet end and a heat exchanger outlet end; the refrigerant passage comprises a refrigerant passage A and a refrigerant passage B, the outlet end of the evaporator is connected to the suction end of the compressor by the refrigerant passage A, and the outlet end of the compressor is connected to the inlet end of the heat exchanger by the refrigerant passage B, characterized in that: 还包括分流三通，所述分流三通设置在节流装置和蒸发器的前方位置；所述蒸发器包括上部蒸发器和下部蒸发器，所述上部蒸发器和下部蒸发器之间设置有隔板，上部蒸发器和下部蒸发器通过隔板，上、下叠加设置，上部蒸发器和下部蒸发器以隔板为中心，上、下对称；It also includes a flow dividing tee, which is arranged in front of the throttling device and the evaporator; the evaporator includes an upper evaporator and a lower evaporator, a partition is arranged between the upper evaporator and the lower evaporator, the upper evaporator and the lower evaporator are arranged in a stacked manner through the partition, and the upper evaporator and the lower evaporator are symmetrical with the partition as the center; 蒸发器的出气端设置有冷媒连通管，所述冷媒连通管的中间设置有单向阀，单向阀把冷媒连通管分为冷媒连通管的上半部分和冷媒连通管的下半部分，冷媒连通管的上半部分与上部蒸发器的出气端相连通，冷媒连通管的下半部分与下部蒸发器的出气端相连通；A refrigerant connecting pipe is provided at the air outlet of the evaporator, a one-way valve is provided in the middle of the refrigerant connecting pipe, and the one-way valve divides the refrigerant connecting pipe into an upper half of the refrigerant connecting pipe and a lower half of the refrigerant connecting pipe. The upper half of the refrigerant connecting pipe is connected to the air outlet of the upper evaporator, and the lower half of the refrigerant connecting pipe is connected to the air outlet of the lower evaporator. 所述节流装置包括电子膨胀阀A和电子膨胀阀B，所述电子膨胀阀A设置在上部蒸发器进口端，所述电子膨胀阀B设置在下部蒸发器进口端；The throttling device comprises an electronic expansion valve A and an electronic expansion valve B, wherein the electronic expansion valve A is arranged at the inlet end of the upper evaporator, and the electronic expansion valve B is arranged at the inlet end of the lower evaporator; 所述冷媒通路还包括冷媒通路C、冷媒通路D和冷媒通路E；从换热器出口端至分流三通、以冷媒通路C连接，从分流三通至电子膨胀阀A、以冷媒通路D连接，从分流三通至电子膨胀阀B、以冷媒通路E连接，冷媒通路D与冷媒通路E是并联关系；The refrigerant passage also includes a refrigerant passage C, a refrigerant passage D and a refrigerant passage E; from the outlet of the heat exchanger to the diverter tee, connected by the refrigerant passage C, from the diverter tee to the electronic expansion valve A, connected by the refrigerant passage D, from the diverter tee to the electronic expansion valve B, connected by the refrigerant passage E, the refrigerant passage D and the refrigerant passage E are in parallel relationship; 从分流三通至电子膨胀阀A的冷媒通路D上设置有电磁阀A, 从分流三通至电子膨胀阀B的冷媒通路E上设置有电磁阀B。A solenoid valve A is provided on the refrigerant passage D from the diverter tee to the electronic expansion valve A, and a solenoid valve B is provided on the refrigerant passage E from the diverter tee to the electronic expansion valve B. 2.根据权利要求1所述的一种具快速除湿结构的恒温恒湿空调机组，其特征在于：所述室外换热器包括铜管和铝翅片，室外换热器的制作采用铜管串套铝翅片机械胀结而成，内、外圈分别涨管后拼合一起折弯成型；翅片的片间距为1.7mm。2. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to claim 1, characterized in that: the outdoor heat exchanger includes copper tubes and aluminum fins, and the outdoor heat exchanger is made by mechanical expansion of copper tubes in series with aluminum fins, and the inner and outer rings are expanded and then assembled together and bent into shape; the fin spacing is 1.7mm. 3.根据权利要求1所述的一种具快速除湿结构的恒温恒湿空调机组，其特征在于：从压缩机出气端至换热器进气端之间的冷媒通路B上、设置有截止阀A和截止阀B，所述截止阀A在室内，截止阀B在室外；从换热器出口端至分流三通的冷媒通路C上、设置有截止阀C和截止阀D，所述截止阀C在室外，截止阀D在室内。3. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to claim 1, characterized in that: a stop valve A and a stop valve B are provided on the refrigerant passage B from the air outlet of the compressor to the air inlet of the heat exchanger, the stop valve A is indoors, and the stop valve B is outdoors; a stop valve C and a stop valve D are provided on the refrigerant passage C from the outlet of the heat exchanger to the diversion tee, the stop valve C is outdoors, and the stop valve D is indoors. 4.根据权利要求1所述的一种具快速除湿结构的恒温恒湿空调机组，其特征在于：所述分流三通的产品型号为直径16T型等径铜三通。4. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to claim 1, characterized in that the product model of the diversion tee is a 16T-type equal-diameter copper tee. 5.根据权利要求1所述的一种具快速除湿结构的恒温恒湿空调机组，其特征在于：在冷媒通路B上、换热器出口端压缩机吸气端和截止阀A之间设置有油分离器，所述油分离器将压缩机排出的高温高压制冷剂气体中的润滑油进行分离。5. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to claim 1, characterized in that an oil separator is arranged on the refrigerant passage B, between the compressor suction end at the heat exchanger outlet and the stop valve A, and the oil separator separates the lubricating oil in the high-temperature and high-pressure refrigerant gas discharged from the compressor. 6.根据权利要求1所述的一种具快速除湿结构的恒温恒湿空调机组，其特征在于：在冷媒通路C上、压缩机吸气端与截止阀C之间、设置有储液器，所述储液器能起到制冷剂缓冲的作用。6. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to claim 1, characterized in that a liquid reservoir is provided on the refrigerant passage C, between the suction end of the compressor and the stop valve C, and the liquid reservoir can play the role of refrigerant buffer. 7.根据权利要求1所述的一种具快速除湿结构的恒温恒湿空调机组，其特征在于：在冷媒通路C上、截止阀D与分流三通之间设置有干燥过滤器，所述干燥过滤器能过滤杂质，对冷媒介质起到净化作用。7. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to claim 1, characterized in that a drying filter is arranged on the refrigerant passage C, between the stop valve D and the diversion tee, and the drying filter can filter impurities and purify the refrigerant medium. 8.根据权利要求1所述的一种具快速除湿结构的恒温恒湿空调机组，其特征在于：在冷媒通路A上、从蒸发器的出气端至压缩机吸气端之间设置有气液分离器，所述气液分离器的作用就是处理含有少量凝液的气体，实现从蒸发器的出气端流向压缩机吸气端低温低压制冷剂气体的气相净化，气液分离器的产品型号为气液分离器QFQ-5.0。8. A constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to claim 1, characterized in that: a gas-liquid separator is arranged on the refrigerant passage A, from the gas outlet of the evaporator to the air intake of the compressor, and the function of the gas-liquid separator is to process the gas containing a small amount of condensate to realize the gas phase purification of the low-temperature and low-pressure refrigerant gas flowing from the gas outlet of the evaporator to the air intake of the compressor, and the product model of the gas-liquid separator is gas-liquid separator QFQ-5.0. 9.根据权利要求1至8任一项所述的一种具快速除湿结构的恒温恒湿空调机组的工作方法，其特征在于：一种具快速除湿结构的恒温恒湿空调机组的工作方法包括3种工作模式：9. The working method of a constant temperature and humidity air conditioning unit with a rapid dehumidification structure according to any one of claims 1 to 8, characterized in that: the working method of a constant temperature and humidity air conditioning unit with a rapid dehumidification structure includes three working modes: （1）工作模式1，即使用蒸发器的下半部分进行快速除湿的工作模式：截止阀A、截止阀B、截止阀C和截止阀D打开，电磁阀A和电子膨胀阀A打开，电磁阀B和电子膨胀阀B关闭；(1) Working mode 1, i.e., the working mode of using the lower half of the evaporator for rapid dehumidification: stop valve A, stop valve B, stop valve C and stop valve D are open, solenoid valve A and electronic expansion valve A are open, and solenoid valve B and electronic expansion valve B are closed; 压缩机启动，压缩机把从压缩机蒸发器输入的低温低压的制冷剂气体压缩成高温高压的制冷剂气体，高温高压的制冷剂气体从压缩机出气端排出，沿冷媒通路B、经过油分离器，将压缩机排出的高温高压制冷剂气体中的润滑油进行分离；高温高压的制冷剂气体再经过截止阀A和截止阀B、从换热器进气端进入换热器，变为常温高压的制冷剂液体、从换热器出口端排出；同时，通过室外散热风机的强制对流、将热量排放到室外空气环境中；The compressor starts, and the compressor compresses the low-temperature and low-pressure refrigerant gas input from the compressor evaporator into high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas is discharged from the compressor outlet, along the refrigerant path B, and passes through the oil separator to separate the lubricating oil in the high-temperature and high-pressure refrigerant gas discharged from the compressor; the high-temperature and high-pressure refrigerant gas then passes through the stop valve A and the stop valve B, enters the heat exchanger from the heat exchanger inlet end, becomes a normal temperature and high-pressure refrigerant liquid, and is discharged from the heat exchanger outlet end; at the same time, the heat is discharged to the outdoor air environment through the forced convection of the outdoor heat dissipation fan; 常温高压的制冷剂液体继续沿冷媒通路B往前流动，经过储液器、使制冷剂具备缓冲作用；接着经过能起到压力控制和保护作用的制冷压力开关，向前经截止阀C和截止阀D，流经干燥过滤器，过滤掉制冷剂液体中的杂质，再往前流动、到达分流三通；The refrigerant liquid at room temperature and high pressure continues to flow forward along the refrigerant path B, passes through the liquid storage tank, and makes the refrigerant have a buffering effect; then passes through the refrigeration pressure switch that can play a role in pressure control and protection, and flows forward through the stop valve C and stop valve D, flows through the dry filter, filters out impurities in the refrigerant liquid, and then flows forward to reach the diversion tee; 常温高压的制冷剂液体自分流三通向下，沿冷媒通路D，经电磁阀A、到达电子膨胀阀A，进行节流降压，变成低温低压的制冷剂液体；随即，低温低压的制冷剂液体进入下部蒸发器，在蒸发器的1/2的面积内吸收空气中的热量，将空气温度降得更低、接近0℃，低温低压的制冷剂液体变成低温低压的制冷剂气体；同时，通过室内送风机的强制对流、将冷风排放到室内空气环境中；The refrigerant liquid at room temperature and high pressure flows downward from the flow divider tee, along the refrigerant passage D, through the solenoid valve A, and reaches the electronic expansion valve A, where it is throttled and depressurized to become a low-temperature and low-pressure refrigerant liquid; then, the low-temperature and low-pressure refrigerant liquid enters the lower evaporator, absorbs heat from the air within the 1/2 area of the evaporator, and lowers the air temperature even lower, close to 0°C, and the low-temperature and low-pressure refrigerant liquid becomes a low-temperature and low-pressure refrigerant gas; at the same time, the cold air is discharged into the indoor air environment through the forced convection of the indoor blower; 由于蒸发器面积小，制冷剂在蒸发器内的温度小，使得通过用于除湿的1/2的蒸发器空气温度更低，将更多的空气中水凝露；采用快速除湿结构的机组，实际测试效果、按恒温恒湿设计数据50%用于除湿，按机房空调40%用于除湿，采用快速除湿模式可以达到最佳的除湿效果；Since the evaporator area is small, the temperature of the refrigerant in the evaporator is low, so the temperature of the air passing through the 1/2 evaporator used for dehumidification is lower, and more water in the air is condensed; for units with a rapid dehumidification structure, according to actual test results, 50% is used for dehumidification according to the constant temperature and humidity design data, and 40% is used for dehumidification according to the computer room air conditioning. The rapid dehumidification mode can achieve the best dehumidification effect; 最后，低温低压的制冷剂气体自冷媒连通管的下半部分、经蒸发器的出气端，沿冷媒通路A，从压缩机吸气端进入、又回到压缩机；如此，不断循环，达到对室内制冷及快速除湿的目的；Finally, the low-temperature and low-pressure refrigerant gas flows from the lower part of the refrigerant connecting pipe, through the outlet end of the evaporator, along the refrigerant passage A, enters from the suction end of the compressor, and returns to the compressor; in this way, it circulates continuously to achieve the purpose of indoor cooling and rapid dehumidification; （2）工作模式2，即使用蒸发器的上半部分进行快速除湿的工作模式：截止阀A、截止阀B、截止阀C和截止阀D打开，电磁阀A和电子膨胀阀A关闭，电磁阀B和电子膨胀阀B打开；(2) Working mode 2, i.e., the working mode of using the upper part of the evaporator for rapid dehumidification: stop valve A, stop valve B, stop valve C and stop valve D are open, solenoid valve A and electronic expansion valve A are closed, and solenoid valve B and electronic expansion valve B are open; 常温高压的制冷剂液体自分流三通向上，沿冷媒通路E，经电磁阀B、到达电子膨胀阀B，进行节流降压，变成低温低压的制冷剂液体；随即，低温低压的制冷剂液体进入上部蒸发器，在蒸发器的1/2的面积内吸收空气中的热量，将空气温度降得更低、接近0℃，低温低压的制冷剂液体变成低温低压的制冷剂气体；The refrigerant liquid at room temperature and high pressure flows upward from the flow divider tee, along the refrigerant passage E, through the solenoid valve B, and reaches the electronic expansion valve B, where it is throttled and depressurized to become a refrigerant liquid at low temperature and low pressure. Then, the refrigerant liquid at low temperature and low pressure enters the upper evaporator, where it absorbs heat from the air within the 1/2 area of the evaporator, lowering the air temperature even lower to close to 0°C, and the refrigerant liquid at low temperature and low pressure becomes a refrigerant gas at low temperature and low pressure. 最后，低温低压的制冷剂气体自冷媒连通管的上半部分向下经过单向阀、到冷媒连通管的下半部分，再经蒸发器的出气端，沿冷媒通路A，从压缩机吸气端进入、又回到压缩机；Finally, the low-temperature and low-pressure refrigerant gas flows from the upper part of the refrigerant connecting pipe downward through the one-way valve to the lower part of the refrigerant connecting pipe, and then passes through the outlet end of the evaporator, along the refrigerant path A, enters from the suction end of the compressor, and returns to the compressor; 余同工作模式1；Same working mode 1; （3）工作模式3，同时使用蒸发器的上半部分和下半部分进行全冷制冷除湿的工作模式：截止阀A、截止阀B、截止阀C和截止阀D打开，电磁阀A、电子膨胀阀A、电磁阀B和电子膨胀阀B同时打开；(3) Working mode 3, using the upper and lower parts of the evaporator for full cooling and dehumidification at the same time: stop valve A, stop valve B, stop valve C and stop valve D are opened, and solenoid valve A, electronic expansion valve A, solenoid valve B and electronic expansion valve B are opened at the same time; 常温高压的制冷剂液体分为2部分，一部分常温高压的制冷剂液体自分流三通向下，沿冷媒通路D，经电磁阀A、到达电子膨胀阀A，进行节流降压，变成低温低压的制冷剂液体；随即，低温低压的制冷剂液体进入下部蒸发器，蒸发器全面积内吸收空气中的热量，将空气温度降低；低温低压的制冷剂液体变成低温低压的制冷剂气体，流到冷媒连通管的下半部分；The normal temperature and high pressure refrigerant liquid is divided into two parts. One part of the normal temperature and high pressure refrigerant liquid flows downward from the diversion tee, along the refrigerant passage D, through the solenoid valve A, and reaches the electronic expansion valve A, where it is throttled and depressurized to become a low temperature and low pressure refrigerant liquid. Then, the low temperature and low pressure refrigerant liquid enters the lower evaporator, where the evaporator absorbs heat from the air over the entire area, lowering the air temperature. The low temperature and low pressure refrigerant liquid becomes a low temperature and low pressure refrigerant gas, and flows to the lower half of the refrigerant connecting pipe. 另一部分常温高压的制冷剂液体自分流三通向上，沿冷媒通路E，经电磁阀B、到达电子膨胀阀B，进行节流降压，变成低温低压的制冷剂液体；随即，低温低压的制冷剂液体进入上部蒸发器，蒸发器全面积内吸收空气中的热量，将空气温度降低；低温低压的制冷剂液体变成低温低压的制冷剂气体；接着，低温低压的制冷剂气体自冷媒连通管的上半部分向下经过单向阀、到冷媒连通管的下半部分，再同已经从下部蒸发器流到冷媒连通管的下半部分的常温高压的制冷剂液体混合，再经蒸发器的出气端，沿冷媒通路A，从压缩机吸气端进入、又回到压缩机；Another part of the refrigerant liquid at room temperature and high pressure flows upward from the flow dividing tee, along the refrigerant passage E, through the solenoid valve B, and reaches the electronic expansion valve B, where it is throttled and depressurized to become a refrigerant liquid at low temperature and low pressure; then, the refrigerant liquid at low temperature and low pressure enters the upper evaporator, where it absorbs heat from the air over the entire area of the evaporator to lower the air temperature; the refrigerant liquid at low temperature and low pressure becomes a refrigerant gas at low temperature and low pressure; then, the refrigerant gas at low temperature and low pressure flows downward from the upper part of the refrigerant connecting pipe through the one-way valve to the lower part of the refrigerant connecting pipe, and then mixes with the refrigerant liquid at room temperature and high pressure that has flowed from the lower evaporator to the lower part of the refrigerant connecting pipe, and then passes through the gas outlet of the evaporator, along the refrigerant passage A, enters from the suction end of the compressor, and returns to the compressor; 在工作模式3中，温度降低到空气中水凝露点，在室内蒸发器表面结晶出冷凝水达到除湿的目的；这时蒸发器面积大，按恒温恒湿设计数据20-30%用于除湿，按机房空调5-10%用于除湿；所以在全冷模式时除湿效果是非常有限的；In working mode 3, the temperature is reduced to the dew point of water in the air, and condensed water is crystallized on the surface of the indoor evaporator to achieve the purpose of dehumidification; at this time, the evaporator area is large, and according to the constant temperature and humidity design data, 20-30% is used for dehumidification, and according to the computer room air conditioner, 5-10% is used for dehumidification; therefore, the dehumidification effect is very limited in the full cooling mode; 余同工作模式1。The rest is the same as working mode 1. 10.根据权利要求9所述的一种具快速除湿结构的恒温恒湿空调机组的工作方法，其特征在于：快速除湿由于采用2个电磁阀和2个电子膨胀阀分路控制，在运行快速除湿时，采用2个电磁阀和电子膨胀阀分路控制，使用蒸发器的下半部分，也能使用蒸发器的上半部分；在快速除湿制冷剂在蒸发的温度低于0℃温度运行，长时间在此模式下运行，蒸发器面板水滴容易结霜和结冰；此结构可以将蒸发器的上、下部分交替使用，能防止蒸发器面板水滴结霜和结冰情况的发生，又能满足快速除湿的要求。10. The working method of a constant temperature and humidity air-conditioning unit with a rapid dehumidification structure according to claim 9 is characterized in that: rapid dehumidification adopts shunt control of two solenoid valves and two electronic expansion valves. When the rapid dehumidification is running, two solenoid valves and the electronic expansion valve are used for shunt control, and the lower half of the evaporator can be used, and the upper half of the evaporator can also be used; when the rapid dehumidification refrigerant is running at an evaporation temperature below 0°C, and runs in this mode for a long time, water droplets on the evaporator panel are prone to frost and ice; this structure can use the upper and lower parts of the evaporator alternately, which can prevent the occurrence of frost and ice on the evaporator panel, and meet the requirements of rapid dehumidification.
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* Cited by examiner, † Cited by third party
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CN210980080U (en) * 2019-11-24 2020-07-10 宁波惠康实业有限公司 Constant temperature and humidity air conditioning unit

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CN104896637A (en) * 2015-05-30 2015-09-09 华为技术有限公司 Light-load dehumidification and refrigeration method and device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210980080U (en) * 2019-11-24 2020-07-10 宁波惠康实业有限公司 Constant temperature and humidity air conditioning unit

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