CN104697253A - Apparatus with dehumidification and defrosting abilities and controlling method thereof - Google Patents

Apparatus with dehumidification and defrosting abilities and controlling method thereof Download PDF

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Publication number
CN104697253A
CN104697253A CN201310729023.1A CN201310729023A CN104697253A CN 104697253 A CN104697253 A CN 104697253A CN 201310729023 A CN201310729023 A CN 201310729023A CN 104697253 A CN104697253 A CN 104697253A
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CN
China
Prior art keywords
refrigerant
temperature
heat converter
expansion valve
couples
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Pending
Application number
CN201310729023.1A
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Chinese (zh)
Inventor
韦宗楒
廖建顺
林师培
刘敏生
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Industrial Technology Research Institute ITRI
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Industrial Technology Research Institute ITRI
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Publication of CN104697253A publication Critical patent/CN104697253A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02Defrosting cycles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2347/00Details for preventing or removing deposits or corrosion
    • F25B2347/02Details of defrosting cycles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2347/00Details for preventing or removing deposits or corrosion
    • F25B2347/02Details of defrosting cycles
    • F25B2347/022Cool gas defrosting

Abstract

An apparatus with dehumidification and defrosting abilities comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a four-way valve and a means for refrigerant flow controlling. The compressor is coupled to the four-way valve. The four-way valve is coupled to the outdoor heat exchanger. The indoor heat exchanger is coupled to the four-way valve. The means for refrigerant flow controlling is respectively coupled to the indoor heat exchanger, the outdoor heat exchanger and the four way valve, to control mixing a low-temperature refrigerant and a high-temperature before flowing into the indoor heat exchanger, or to control mixing a low-temperature refrigerant and a high-temperature refrigerant before flowing into the compressor, or control mixing a low-temperature refrigerant and a high-temperature refrigerant before flowing into the outdoor heat exchanger.

Description

The device of tool dehumidifying and defrost function and control method thereof
Technical field
The device of tool dehumidifying and defrost function and a control method thereof, espespecially a kind of device and control method thereof of not heating up or defrost and not lowering the temperature of can dehumidifying.
Background technology
Air-conditioning system, it is employed widely in people's daily life, and existing air-conditioning system is rough can provide the effects such as cold air, dehumidifying, defrosting and heating installation, and those effect application refrigerant circulation circuit reached.
Existing refrigerant circulation circuit only has the function of expansion circuit, and when refrigerant circulation circuit is in time carrying out cold air dehumidifying, it can cause indoor temperature fluctuated, and causes and be positioned at the uncomfortable of indoor people.In addition, when refrigerant circulation circuit is in time carrying out heating installation defrosting, it can cause heater temperature deficiency and the incomplete phenomenon of defrosting.
As mentioned above, how to enable existing refrigerant circulation circuit in time carrying out cold air dehumidifying, the cold air that one has an equilibrium temperature is provided, or when carrying out heating installation defrosting, there is provided the heating installation of sufficient temp and defrost completely, it becomes existing refrigerant circulation circuit space still to be improved.
Summary of the invention
For achieving the above object, the invention provides the dehumidifying of a kind of tool and the device of defrost function, including a compressor, an indoor heat converter, an outdoor heat converter and a cubic valve; This compressor couples this cubic valve, and this cubic valve couples this outdoor heat converter, and this indoor heat converter couples this indoor heat converter, and this indoor heat converter couples this cubic valve, comprising:
One refrigerant flow control mechanism, it couples this indoor heat converter, this outdoor heat converter and this cubic valve respectively, mix before flowing into this indoor heat converter with a high temperature refrigerant to control a low temperature refrigerant, or a low temperature refrigerant mixes before flowing into this compressor with a high temperature refrigerant, or a low temperature refrigerant mixes before flowing into this outdoor heat converter with a high temperature refrigerant.
Above-mentioned tool dehumidifying and the device of defrost function, also include one first body, one second body, one the 3rd body, one the 4th body, one the 5th body, one the 6th body, one the 7th body and one the 8th body; This compressor couples this cubic valve with the 4th body; This cubic valve couples this outdoor heat converter with the 5th body; This outdoor heat converter couples this refrigerant flow control mechanism with the 6th body; This refrigerant flow control mechanism couples this indoor heat converter with this first body; This indoor heat converter couples this cubic valve with this second body; This cubic valve couples this compressor with the 3rd body; This refrigerant flow control mechanism couples this second body with this seven body; This refrigerant flow control mechanism couples the 5th body with this eight body, and the 8th body is more set around the outside of this compressor.
Above-mentioned tool dehumidifying and the device of defrost function, wherein this refrigerant flow control mechanism has one first expansion valve, one second expansion valve and one the 3rd expansion valve; This first expansion valve and this second expansion valve couple the 6th body respectively, and this first expansion valve more couples the 7th body; This second expansion valve and this three expansion valve couple this first body respectively, and the 3rd expansion valve more couples the 8th body.
Above-mentioned tool dehumidifying and the device of defrost function, wherein this first expansion valve, this second expansion valve and the 3rd expansion valve are an electronic expansion valve.
Above-mentioned tool dehumidifying and the device of defrost function, wherein the 8th body has a primary importance, a second place and a valve body, and this valve body couples this primary importance and this second place respectively.
Above-mentioned tool dehumidifying and the device of defrost function, wherein this primary importance is between the 3rd expansion valve and this compressor; This second place is between this compressor and the 5th body; This valve body is a check valve.
Above-mentioned tool dehumidifying and the device of defrost function, wherein this outdoor heat converter has more an outdoor temperature perceptron; This indoor heat converter has more an indoor temperature perceptron.
For achieving the above object, the application provides a kind of control method of dehumidifying, comprises the following step:
One indoor temperature is greater than one first temperature, and a low temperature refrigerant can mix with a high temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows into an indoor heat converter.
The control method of above-mentioned dehumidifying, also includes: when an outdoor temperature is greater than second temperature, and a low temperature refrigerant can mix with a high temperature refrigerant, to form warm refrigerant in, in this, warm refrigerant flows into a compressor, then is spued by this compressor, and flows into an outdoor heat converter.
The control method of above-mentioned dehumidifying, wherein this first temperature sensed by the first perceptron that is located at a refrigerant flow control mechanism; This second temperature sensed by the second perceptron that is located at this refrigerant control mechanism; This indoor temperature sensed by an indoor temperature perceptron; This outdoor temperature sensed by an outdoor temperature perceptron.
The control method of above-mentioned dehumidifying, wherein this refrigerant flow control mechanism has one second expansion valve, this second expansion valve couples an indoor heat converter, this first perceptron is located between this indoor heat converter and this second expansion valve, this second expansion valve more couples an outdoor heat converter, and this second perceptron is located between this second expansion valve and this outdoor heat converter.
For achieving the above object, the application provides a kind of control method of defrosting, comprises the following step:
When one outdoor temperature is less than second temperature, a low temperature refrigerant can mix with a high temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows into an outdoor heat converter.
The control method of above-mentioned defrosting, also includes: an indoor temperature is less than one first temperature, and a low temperature refrigerant can mix with a high temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows into an indoor heat converter.
The control method of above-mentioned defrosting, wherein this first temperature sensed by the first perceptron that is located at a refrigerant flow control mechanism; This second temperature sensed by the second perceptron that is located at this refrigerant control mechanism; This indoor temperature sensed by an indoor temperature perceptron; This outdoor temperature sensed by an outdoor temperature perceptron.
The control method of above-mentioned defrosting, wherein this refrigerant flow control mechanism has one second expansion valve, this second expansion valve couples an indoor heat converter, this first perceptron is located between this indoor heat converter and this second expansion valve, this second expansion valve more couples an outdoor heat converter, and this second perceptron is located between this second expansion valve and this outdoor heat converter.
Accompanying drawing explanation
Fig. 1 is that tool of the present invention dehumidifying transports the schematic diagram of operation mode with the first embodiment of the device of defrost function in a cold air;
Fig. 2 is that tool of the present invention dehumidifying transports the schematic diagram of operation mode with the first embodiment of the device of defrost function in a heating installation;
Fig. 3 is that tool of the present invention dehumidifying transports the schematic diagram of operation mode with the second embodiment of the device of defrost function in a cold air;
Fig. 4 is that tool of the present invention dehumidifying transports the schematic diagram of operation mode with the second embodiment of the device of defrost function in a heating installation;
Fig. 5 is that the present invention transports time and the outdoor temperature comparison diagram of operation mode in heating installation;
Fig. 6 is that the present invention transports time and the indoor temperature comparison diagram of operation mode in cold air.
Wherein, Reference numeral:
10 compressors
11 cubic valves
12 indoor heat converters
13 refrigerant flow control mechanisms
130 first expansion valves
131 second expansion valves
132 the 3rd expansion valves
14 outdoor heat converters
15 first perceptrons
16 second perceptrons
17 outdoor temperature perceptrons
18 indoor temperature perceptrons
20 first bodys
21 second bodys
22 the 3rd bodys
23 the 4th bodys
24 the 5th bodys
25 the 6th bodys
26 the 7th bodys
27 the 8th bodys
270 primary importances
271 second places
28 valve bodies
A ~ F curve
Detailed description of the invention
Below by way of particular specific embodiment, embodiments of the present invention are described, have in art and usually know that the knowledgeable by content disclosed in the present specification, can understand other advantages of the present invention and effect easily.
Please coordinate with reference to shown in figure 1, for tool dehumidifying of the present invention and the first embodiment of the device of defrost function, it has compressor 10, cubic valve 11, indoor heat converter 12, refrigerant flow control mechanism 13, outdoor heat converter 14,1 first perceptron 15,1 second perceptron 16, outdoor temperature perceptron 17, indoor temperature perceptron 18,1 first body 20,1 second body 21, the 3rd body 22, the 4th body 23, the 5th body 24, the 6th body 25, the 7th body 26 and one the 8th body 27.
Compressor 10 couples cubic valve 11 with the 4th body 23.
Four directions valve 11 couples outdoor heat converter 14 with the 5th body 24, and this outdoor heat converter 14 can be a condenser/evaporator or an evaporimeter.
Outdoor heat converter 14 couples refrigerant flow control mechanism 13 with the 6th body 25.Refrigerant flow control mechanism 13 has one first expansion valve 130,1 second expansion valve 131 and one the 3rd expansion valve 132.
The 6th above-mentioned body 25 couples respectively passs the first expansion valve 130 and the second expansion valve 131.
Second perceptron 16 is located between the 6th body 25 and the second expansion valve 131.
Refrigerant flow control mechanism 13(Means for Refrigerant Flow Controlling) couple indoor heat converter 12 with the first body 20, if illustrate further, the second expansion valve 131 and the 3rd expansion valve 132 couple indoor heat converter 12 with the first body 20.This indoor heat converter 12 can be an evaporimeter or a condenser.If indoor heat converter 12 is an evaporimeter, then outdoor heat converter 14 is a condenser.Otherwise if indoor heat converter 12 is a condenser, then outdoor heat converter 14 is an evaporimeter.
3rd expansion valve 132 couples with the 8th body 27 outside that the 5th body the 24, eight body 27 is further set around compressor 10.
First perceptron 15 is located between the first body 20 and the second expansion valve 131.
Indoor heat converter 12 couples cubic valve 11 with the second body 21.Four directions valve 11 further couples compressor 10 with the 3rd body 22.
Outdoor temperature perceptron 17 is located at outdoor heat converter 14.
Indoor temperature perceptron 18 is located at indoor heat converter 12.
Please coordinate with reference to shown in figure 1, if the present invention carries out a cold air operation pattern, compressor 10 spues after being compressed by refrigerant again.Refrigerant enters outdoor heat converter 14 through cubic valve 11 and the 5th body 24.The refrigerant that this compressor 10 spues is the refrigerant of a HTHP.
Refrigerant carries out the action of a heat radiation in outdoor heat converter 14, and to form a low temperature refrigerant, this low temperature refrigerant can enter the first expansion valve 130 and the second expansion valve 131 respectively via the 6th body 25.This low temperature refrigerant is the refrigerant of a cryogenic high pressure.
This low temperature refrigerant can carry out the action of expanding in the second expansion valve 131, to form the refrigerant of a low-temp low-pressure.The low temperature refrigerant of this low-temp low-pressure can enter indoor heat converter 12 via the first body 20, and to carry out the action of a heat absorption, whereby a cold air is supplied to indoor, the low-temp low-pressure through heat absorption is formed as a high-temperature low-pressure refrigerant.
This high temperature refrigerant flows into cubic valve 11 by the second body 21, then flows in compressor 10 by the 3rd body 22, to carry out the action of compression refrigerant again, to form the refrigerant of a HTHP.
If device of the present invention is because of load change or outdoor environment change, and when being in a kind of unbalanced state, aforesaid first expansion valve 130 will be opened, expand for cryogenic high pressure refrigerant, low-temp low-pressure refrigerant through overexpansion can flow into the second body 21 by the 7th body 26, and mix with the high-temperature low-pressure refrigerant from indoor heat converter 12, to form warm low pressure refrigerant in, in this, warm low pressure refrigerant flows into cubic valve 11, flow in compressor 10 by the 3rd body 22 again, to carry out the action of compression refrigerant again.Mixed with the refrigerant of pressure by two kinds of temperature, to present the state of a balance to this device.In this, the low pressure of warm low pressure is greater than the low pressure of this high-temperature low-pressure.The aperture of the first expansion valve 130 depends on the degree reaching balance needed for this device, if this device larger for the balanced degree that reaches time, then the aperture of the first expansion valve 130 is larger.Otherwise, if this device for the balanced degree that reaches more hour, then the aperture of the first expansion valve 130 is less.
If the second perceptron 16 and indoor temperature perceptron 18 sense indoor when should carry out the action of a dehumidifying, 3rd expansion valve 132 will be opened, one refrigerant can flow into the 5th body 24 by the 8th body 27, the refrigerant being positioned at the 8th body 27 can be promoted to a specified temp by compressor 10, to form a HTHP refrigerant, enter again in the 3rd expansion valve 132 and expand, to form the refrigerant of a high-temperature low-pressure, the high temperature being positioned at the refrigerant of the HTHP of the 8th body 27 is greater than the high temperature of the refrigerant of the HTHP being positioned at the 5th body 24.The refrigerant of this high-temperature low-pressure can flow into the first body 20, and mix with the refrigerant of the low-temp low-pressure from the second expansion valve 131, to form warm low pressure refrigerant in, enter in indoor heat converter 12 again, to carry out a heat exchange, therefore it is stable that indoor temperature can be enable to be maintained at, and the effect of dehumidifying can be reached.Low pressure from the refrigerant of the high-temperature low-pressure of the 3rd expansion valve 132 is greater than the low pressure of the refrigerant of the low-temp low-pressure from the second expansion valve 131.The aperture of the 3rd expansion valve 132 depends on the degree reaching dehumidifying needed for this device, if this device larger for the dehumidifying degree that reaches time, then the aperture of the 3rd expansion valve 132 is larger.Otherwise, if this device for the dehumidifying degree that reaches more hour, then the aperture of the 3rd expansion valve 132 is less.
Please coordinate with reference to shown in figure 2, if the present invention carries out a heating installation mode operation, the refrigerant of a HTHP spues by compressor 10.The refrigerant of this HTHP enters cubic valve 11 through the 4th body 23, then enters indoor heat converter 12 by the second body 21, to carry out the action of a heat release, provides a heating installation to indoor whereby.The refrigerant of a cryogenic high pressure is formed as through the refrigerant of this HTHP of heat release.
The refrigerant of this cryogenic high pressure can flow into the second expansion valve 131 and the 3rd expansion valve 132 by the first body 20.The refrigerant of this cryogenic high pressure carries out the action of an expansion in the second expansion valve 131, to form the refrigerant of a low-temp low-pressure, this low temperature refrigerant is by the 6th body 25 inflow outdoor heat exchanger 14, to carry out the action of a heat absorption, to be formed as a high-temperature low-pressure refrigerant, then flow into cubic valve 11 by the 5th body 24, and flow in compressor 10 by the 3rd body 22, to carry out the action of a compression refrigerant, to form the refrigerant of a HTHP.
If when the present invention is for carrying out a balance, the 3rd expansion valve 132 will be opened, and the refrigerant from the cryogenic high pressure of the first body 20 will enter the 3rd expansion valve 132, to carry out the action of an expansion, to form the refrigerant of a low-temp low-pressure.Low pressure from the refrigerant of the low-temp low-pressure of the 3rd expansion valve 132 is greater than the low pressure of the refrigerant of the low-temp low-pressure from the first expansion valve 131.
Refrigerant from the low-temp low-pressure of the 3rd expansion valve 132 can enter the 5th body 24 by the 8th body 27.The low temperature refrigerant being positioned at the 8th body 27 can be promoted to a specific temperature, to be formed as the refrigerant of a high-temperature low-pressure by compressor 10.The high temperature of the refrigerant of this high-temperature low-pressure is lower than the high temperature of refrigerant of high-temperature low-pressure being positioned at the 5th body 24.
Because outdoor heat converter 14 may be in a kind of situation of frosting, therefore the refrigerant originally entering the low-temp low-pressure of outdoor interchanger 14 cannot absorb heat, and form the refrigerant of high-temperature low-pressure, disengage more heat energy on the contrary, and form the refrigerant of the low-temp low-pressure of more low temperature, if the refrigerant of this low-temp low-pressure flows directly in compressor 10, then likely cause the situation of hydraulic compression.
So mix in the 5th body 24 with the refrigerant of above-mentioned low-temp low-pressure from the refrigerant of the high-temperature low-pressure of the 8th body 27, to be formed as the refrigerant of warm low pressure in one, the low pressure of the refrigerant of this high-temperature low-pressure is greater than the low pressure of the refrigerant of warm low pressure in this.In this, the refrigerant of warm low pressure is via cubic valve 11 and the 3rd body 22, then flows in compressor 10, to avoid the phenomenon of this refrigerant generation hydraulic compression, and the present invention can be made to reach the effect of a balance.
The aperture of the 3rd expansion valve 132 depends on the degree reaching balance needed for this device, if this device larger for the balanced degree that reaches time, then the aperture of the 3rd expansion valve 132 is larger.Otherwise, if this device for the balanced degree that reaches more hour, then the aperture of the 3rd expansion valve 132 is less.
If when outdoor temperature perceptron 17 and the first perceptron 15 sense and should carry out a defrosting action, first expansion valve 130 will be opened, the HTHP refrigerant being arranged in the second body 21 flows into the first expansion valve 130 by the 7th body 26, to carry out a swollen action of rising, and form the refrigerant of a high-temperature low-pressure.,
The refrigerant of this high-temperature low-pressure flows in the 6th body 25, and after mixing with the refrigerant of the low-temp low-pressure from the second expansion valve 131, to form warm low pressure refrigerant in, inflow outdoor heat exchanger 14 again, to carry out the action of a defrosting, and carry out the action of a heat absorption simultaneously, to form the refrigerant of a high-temperature low-pressure, the high temperature from the refrigerant of the high-temperature low-pressure of the first expansion valve 130 is greater than the high temperature of the refrigerant of the high-temperature low-pressure of outer heat-exchanger 14.As the refrigerant then counterbalance effect described above of this high-temperature low-pressure cannot be formed, low temperature refrigerant from outdoor heat converter 14 mixes in the 5th body 24 with the high temperature refrigerant from the 8th body 27, to form the refrigerant of warm low pressure in one, as above described in heating installation mode operation, this high temperature refrigerant or in this warm refrigerant flow into cubic valve 11 via the 5th body 24, and to be flowed in compressor 10 by the 3rd body 22.
Please coordinate shown in Fig. 3, it is the second embodiment of the device of tool of the present invention dehumidifying and defrost function.In the present embodiment, configuration mode first embodiment described above of compressor 10, cubic valve 11, indoor heat converter 12, refrigerant flow control mechanism 13, outdoor heat converter 14, first perceptron 15, second perceptron 16, outdoor temperature perceptron 17, indoor temperature perceptron 18, first body 20, second body 21, the 3rd body 22, the 4th body 23, the 5th body 24, the 6th body 25, the 7th body 26 and the 8th body 27, therefore component symbol is along using an embodiment.
In the present embodiment, a valve body 28 is located at the 8th body 27, and this valve body 28 couples primary importance 270 and a second place 271 of the 8th body 27 respectively.This primary importance 270 is between the 3rd expansion valve 132 and compressor 10.This second place 271 is between compressor 10 and the 5th body 24.This valve body 28 is a check valve, therefore only allows refrigerant to follow single direction flowing.
If when carrying out dehumidifying action in cold air operation pattern, suppose for reducing effect on moisture extraction, then valve body 28 will be opened, because fluid has by the characteristic of high-pressure spray to low pressure, therefore high temperature refrigerant can flow to this primary importance 270 by this second place 271 automatically, and will by being set around the 8th body 27 of compressor 10, and make this high temperature refrigerant can not be promoted to a specified temp again by compressor 10, reduce the effect of dehumidifying whereby.
In like manner, please coordinate with reference to shown in figure 4, because valve body 28 is a check valve, if when carrying out a balance play in heating installation mode operation pattern, low temperature refrigerant from the 3rd expansion valve 132 cannot pass through valve body 28, and only can flow in the 8th body 27, and heat by compressor, to form a high temperature refrigerant, this high temperature refrigerant flows in the 5th body 24 again.
The control method that the present invention also provides a kind of tool to dehumidify, it comprises the following step:
Please coordinate with reference to shown in figure 1, the first perceptron 15 senses one first temperature again.Second perceptron 16 senses one second temperature.Indoor temperature perceptron 18 senses an indoor temperature.
If in cold air operation pattern, when the first temperature is less than the second temperature, second expansion valve 131 will be opened, the aperture of the second expansion valve 131 depends on the difference of the first temperature and the second temperature, if the numerical value that the first temperature deducts the second temperature more hour, then this aperture will be larger, to strengthen cold air effect.
As mentioned above, a low temperature refrigerant inflow indoor heat exchanger 12, carries out the action of a heat absorption, there is provided a cold air indoor to one whereby, if the aperture of the second expansion valve 131 is larger, then the amount of the low temperature refrigerant of inflow indoor heat exchanger 12 is more, so can improve more cold air to these indoor.
When the first temperature is less than indoor temperature, 3rd expansion valve 132 will be opened, and the aperture of the 3rd expansion valve 132 depends on the difference of the first temperature and indoor temperature, if the numerical value that the first temperature deducts indoor temperature more hour, then this aperture will be larger, to promote effect on moisture extraction.
As mentioned above, a high temperature refrigerant can mix with a low temperature refrigerant, to form warm refrigerant in, in this in warm refrigerant inflow indoor heat exchanger 12, to carry out a heat exchange, and reaches the effect of dehumidifying.
When the second temperature is less than outdoor temperature, first expansion valve 130 will be opened, and the aperture of the first expansion valve 130 depends on the difference of the second temperature and outdoor temperature, if the numerical value of the second temperature minus outdoor temperature more hour, then aperture will be larger, to promote counterbalance effect.
As mentioned above, a low temperature refrigerant can mix with a high temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows in compressor 10, is a poised state to make the present invention.
The present invention also provides a kind of control method of defrosting, and it comprises the following step:
Please coordinate with reference to shown in figure 2 again, if in heating installation mode operation pattern, when the first temperature is greater than the second temperature, the aperture of the second expansion valve 131 depends on the difference of the first temperature and the second temperature, if the first temperature deduct the numerical value of the second temperature larger time, then this aperture will be larger, to strengthen heating installation effect.
As mentioned above, a high temperature refrigerant inflow indoor heat exchanger 12, to carry out the action of a heat radiation, provides a heating installation indoor to one whereby.
When the first temperature is greater than indoor temperature, 3rd expansion valve 132 will be opened, and the aperture of the 3rd expansion valve 132 depends on the difference of the first temperature and indoor temperature, if the first temperature deduct the numerical value of indoor temperature larger time, then this aperture will be larger, to promote counterbalance effect.
As mentioned above, a high temperature refrigerant mixes with a low temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows in compressor 10, except the phenomenon can avoiding refrigerant generation hydraulic compression, and the present invention can be made to reach the effect of a balance
When the second temperature is greater than outdoor temperature, first expansion valve 130 will be opened, and the aperture of the first expansion valve 130 depends on the difference of the second temperature and outdoor temperature, if when the numerical value of the second temperature minus outdoor temperature is larger, then aperture will be larger, to promote defrosting effect.
As mentioned above, a high temperature refrigerant mixes with a low temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows in an outdoor heat converter 14, to carry out the action of a defrosting.
Please coordinate with reference to shown in figure 5, the present invention is in a heating installation operation mode.As shown in the figure, curve A represents that the present invention is in a kind of state providing heating installation, and outdoor temperature is about 7 DEG C or more, after several minutes, curve A starts to present a flat condition, and namely heating installation provides and is tending towards a stable state, if the duration of runs is longer, flat condition that curve A presents can be more obvious.
Curve B represents that outdoor temperature is about boundary between 7 DEG C to 0 DEG C, and the present invention carries out a defrosting running, and adjusts cold section of loop and hot arc loop.The route that the above-mentioned low temperature refrigerant in this cold section of loop flows through.The route that the above-mentioned high temperature refrigerant in this hot arc loop flows through.After several minutes, curve B be close to curve A, and present a flat condition, namely defrosting and heating installation provide and are tending towards a stable state.
To further discuss curve B, please coordinate with reference to shown in figure 2 again, the refrigerant inflow indoor heat exchanger 12 of a HTHP, and through an exothermic process, to form the refrigerant of a cryogenic high pressure.The refrigerant of this cryogenic high pressure is flowed in refrigerant flow control mechanism 13 by the first body 20, and carries out an expansion process, to form the refrigerant of a low-temp low-pressure.
The refrigerant of this low-temp low-pressure by the 6th body 25 inflow outdoor heat exchanger, and carries out an endothermic process, to form the refrigerant of a high-temperature low-pressure.
The refrigerant that this Gao Wen Di presses sequentially flows in compressor 10, to form the refrigerant of above-mentioned HTHP by the 5th body 24, cubic valve 11 and the 3rd body 22.The refrigerant of this HTHP is sequentially by the 4th body 23, cubic valve 11 and the second body 21 inflow indoor heat exchanger 12.
If for the phenomenon presenting curve B, then two parts will be divided into explain, one is the adjustment in cold section of loop, and two is the adjustment in hot arc loop.
Refrigerant from the cryogenic high pressure of the first body 20 flows in refrigerant flow control mechanism 13, and carries out an expansion process, to form the refrigerant of a low-temp low-pressure.The refrigerant of this low-temp low-pressure flows into the 8th body 27, and heat by compressor 10, then flow in the 5th body 24, to form the refrigerant of a high-temperature low-pressure.But heat by compressor 10 after the high temperature of refrigerant of high-temperature low-pressure be less than the high temperature of the refrigerant of the high-temperature low-pressure being positioned at the 5th body 24.The low pressure being positioned at the high-temperature low-pressure of the 8th body is less than the low pressure of the high-temperature low-pressure being positioned at the 5th body 24.Therefore two refrigerants can be formed as the refrigerant of warm low pressure in one after mixing in the 5th body 24, so for the ease of discussing, still discuss with the refrigerant of a high-temperature low-pressure, this is the adjustment in hot arc loop.
Refrigerant from the HTHP of compressor 10 flows into refrigerant flow control mechanism 13 by the 7th body 26, and through an expansion process, to form the refrigerant of a high-temperature low-pressure.The refrigerant of this high-temperature low-pressure mixes with the refrigerant of the low-temp low-pressure being arranged in the 6th body 25, to form the refrigerant of warm low pressure in one.In this warm low pressure refrigerant inflow outdoor heat exchanger 14 in, to carry out an endothermic process, and be formed as the refrigerant of a high-temperature low-pressure.The refrigerant of this high-temperature low-pressure sequentially flows in compressor 10 by the 5th body 24, cubic valve 11 and the 3rd body 22, and this is the adjustment in hot arc loop.In this, the low pressure of warm low pressure is greater than the low pressure of the high-temperature low-pressure being positioned at the 5th body 24.
From the above, the present invention utilizes the shunting of refrigerant and the mode of mixed flow, to change pressure and the temperature of the refrigerant flowing into outdoor inside heat exchanger 14, and flow into the pressure of refrigerant and the temperature of compressor 10, and then reach the object in adjustment cold section of loop and hot arc loop.
Curve C represents that outdoor temperature is lower than 0 DEG C, and the present invention carries out a defrosting running, and adjusts a hot arc loop, and in now, the present invention will carry out three actions simultaneously, and one for providing heating installation, and two is defrosting, and three for carrying out the action of the present invention of above-mentioned balance.As shown in the figure, after several minutes, curve C be close to curve A, and present a flat condition, namely defrost, balance the present invention and heating installation and provide and be tending towards a stable state.
Please coordinate with reference to shown in figure 6, the present invention is in a cold air operation pattern.As shown in the figure, curve D represents that outdoor temperature is about 27 DEG C or more, and is in a kind of state providing cold air, after several minutes, curve D starts to present a flat condition, and namely cold air provides and levels off to a stable state, if the duration of runs is longer, the flat condition that curve D presents can be more obvious.
Curve E represents outdoor temperature about between 27 DEG C to 24 DEG C, and the present invention carries out a dehumidifying running, and adjusts cold section of loop and hot arc loop.After a period of time, curve E be close to curve D, and present a flat condition, namely dehumidifying and cold air provide and are tending towards a stable state.This period can be several minutes to more than ten minutes, or is less than more than ten minute.
To further discuss curve E, please coordinate with reference to shown in figure 1 again, from the refrigerant of the low-temp low-pressure of the first body 20, in indoor heat converter 12 after an endothermic process, the refrigerant of this low-temp low-pressure is formed as the refrigerant of a high-temperature low-pressure.
The refrigerant of this high-temperature low-pressure flows in compressor 10 by the second pipeline 21, to form the refrigerant of a HTHP.The refrigerant of this HTHP by the 4th body 23 inflow outdoor heat exchanger 14, and through an exothermic process, to form the refrigerant of a cryogenic high pressure.
The refrigerant of this cryogenic high pressure is flowed in refrigerant flow control mechanism 13 by the 6th body 25, and carries out an expansion process, to form the refrigerant of above-mentioned low-temp low-pressure.The refrigerant of this low-temp low-pressure is again by the first body 20 inflow indoor heat exchanger 12.
If for the phenomenon presenting curve E, then two parts will be divided into explain, one is the adjustment in cold section of loop, and two is the adjustment in hot arc loop.
After the refrigerant of the HTHP that compressor 10 spues sequentially flows through the 4th body 23, cubic valve 11, the 5th body 24 and the 8th body 27, after being heated by compressor 10 again, and flow in refrigerant flow control mechanism 13, after an expansion process, to form the refrigerant of a high-temperature low-pressure, and mix with the refrigerant of the low-temp low-pressure being arranged in the first body 20, to form the refrigerant of warm low pressure in one, again in inflow indoor heat exchanger 12, this is the adjustment in cold section of loop.In this, the low pressure of warm low pressure is greater than the low pressure of this low-temp low-pressure.
Refrigerant from the cryogenic high pressure of outdoor heat converter 14 flows in refrigerant flow control mechanism 13 by the 6th body 25, after an expansion process, to form the refrigerant of a low-temp low-pressure, flow in the second body 21 by the 7th body 26 again, and mix with the refrigerant of the high-temperature low-pressure being arranged in the second body 21, to form the refrigerant of warm low pressure in one, this is the adjustment in hot arc loop.In this, the low pressure of warm low pressure is greater than the low pressure of this high-temperature low-pressure.
From the above, the present invention utilizes the shunting of refrigerant and the mode of mixed flow, to change pressure and the temperature of the refrigerant of inflow indoor heat exchanger 12, and flows into the pressure of refrigerant and the temperature of compressor 10, and then reaches the object in adjustment cold section of loop and hot arc loop.
Curve F represents that outdoor temperature is lower than 24 DEG C, and the present invention carries out a dehumidifying running, and adjusts a hot arc loop, and in now, the present invention will carry out three actions simultaneously, and one for providing cold air, and two is dehumidifying, and three for carrying out the action of the present invention of above-mentioned balance.As shown in the figure, after several minutes, curve F be close to curve D, and present a flat condition, namely dehumidify, balance the present invention and cold air and provide and be tending towards a stable state.
Comprehensively above-mentioned, existing air-conditioning system or dehumidification system, in providing cold air or dehumidifying that indoor temperature often can be caused to heat, or in providing heating installation that indoor temperature often can be caused to lower the temperature, and cause the uncomfortable situation of the people being positioned at indoor to produce.The present invention is by providing a kind of mode of balance, namely a high temperature refrigerant mixes warm refrigerant in formed with a low temperature refrigerant, and reaches the function of dehumidifying or defrosting, and can reach dehumidifying or defrosting further, and be maintained at a temperature, and remain in the comfort of indoor people.
Above-described specific embodiment, only release Characteristic of the present invention for example, but not of the present inventionly implement category for limiting, under not departing from the spirit and technology category that the present invention takes off, the disclosed content of any utilization and the equivalence that completes changes and modify, all still should be following claim and contained.

Claims (15)

1. a device for tool dehumidifying and defrost function, it includes a compressor, an indoor heat converter, an outdoor heat converter and a cubic valve; This compressor couples this cubic valve, and this cubic valve couples this outdoor heat converter, and this indoor heat converter couples this indoor heat converter, and this indoor heat converter couples this cubic valve, it is characterized in that, also comprises:
One refrigerant flow control mechanism, it couples this indoor heat converter, this outdoor heat converter and this cubic valve respectively, mix before flowing into this indoor heat converter with a high temperature refrigerant to control a low temperature refrigerant, or a low temperature refrigerant mixes before flowing into this compressor with a high temperature refrigerant, or a low temperature refrigerant mixes before flowing into this outdoor heat converter with a high temperature refrigerant.
2. tool dehumidifying as claimed in claim 1 and the device of defrost function, is characterized in that, also include one first body, one second body, one the 3rd body, one the 4th body, one the 5th body, one the 6th body, one the 7th body and one the 8th body; This compressor couples this cubic valve with the 4th body; This cubic valve couples this outdoor heat converter with the 5th body; This outdoor heat converter couples this refrigerant flow control mechanism with the 6th body; This refrigerant flow control mechanism couples this indoor heat converter with this first body; This indoor heat converter couples this cubic valve with this second body; This cubic valve couples this compressor with the 3rd body; This refrigerant flow control mechanism couples this second body with this seven body; This refrigerant flow control mechanism couples the 5th body with this eight body, and the 8th body is more set around the outside of this compressor.
3. the device of tool dehumidifying as claimed in claim 2 and defrost function, it is characterized in that, this refrigerant flow control mechanism has one first expansion valve, one second expansion valve and one the 3rd expansion valve; This first expansion valve and this second expansion valve couple the 6th body respectively, and this first expansion valve more couples the 7th body; This second expansion valve and this three expansion valve couple this first body respectively, and the 3rd expansion valve more couples the 8th body.
4. the device of tool dehumidifying as claimed in claim 3 and defrost function, it is characterized in that, this first expansion valve, this second expansion valve and the 3rd expansion valve are an electronic expansion valve.
5. the device of tool dehumidifying as claimed in claim 3 and defrost function, it is characterized in that, the 8th body has a primary importance, a second place and a valve body, and this valve body couples this primary importance and this second place respectively.
6. the device of tool dehumidifying as claimed in claim 5 and defrost function, it is characterized in that, this primary importance is between the 3rd expansion valve and this compressor; This second place is between this compressor and the 5th body; This valve body is a check valve.
7. the device of tool dehumidifying as claimed in claim 1 and defrost function, it is characterized in that, this outdoor heat converter has more an outdoor temperature perceptron; This indoor heat converter has more an indoor temperature perceptron.
8. a control method for dehumidifying, is characterized in that, comprise the following step:
One indoor temperature is greater than one first temperature, and a low temperature refrigerant can mix with a high temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows into an indoor heat converter.
9. the control method of dehumidifying as claimed in claim 8, it is characterized in that, also include: when an outdoor temperature is greater than second temperature, one low temperature refrigerant can mix with a high temperature refrigerant, to form warm refrigerant in, in this, warm refrigerant flows into a compressor, then is spued by this compressor, and flows into an outdoor heat converter.
10. the control method of dehumidifying as claimed in claim 9, it is characterized in that, this first temperature sensed by the first perceptron that is located at a refrigerant flow control mechanism; This second temperature sensed by the second perceptron that is located at this refrigerant control mechanism; This indoor temperature sensed by an indoor temperature perceptron; This outdoor temperature sensed by an outdoor temperature perceptron.
11. control methods dehumidified as claimed in claim 10, it is characterized in that, this refrigerant flow control mechanism has one second expansion valve, this second expansion valve couples an indoor heat converter, this first perceptron is located between this indoor heat converter and this second expansion valve, this second expansion valve more couples an outdoor heat converter, and this second perceptron is located between this second expansion valve and this outdoor heat converter.
The control method of 12. 1 kinds of defrostings, is characterized in that, comprise the following step:
When one outdoor temperature is less than second temperature, a low temperature refrigerant can mix with a high temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows into an outdoor heat converter.
13. the control method of defrosting as claimed in claim 12, it is characterized in that, also include: an indoor temperature is less than one first temperature, a low temperature refrigerant can mix with a high temperature refrigerant, and to form warm refrigerant in, in this, warm refrigerant flows into an indoor heat converter.
14. control methods defrosted as claimed in claim 13, it is characterized in that, this first temperature sensed by the first perceptron that is located at a refrigerant flow control mechanism; This second temperature sensed by the second perceptron that is located at this refrigerant control mechanism; This indoor temperature sensed by an indoor temperature perceptron; This outdoor temperature sensed by an outdoor temperature perceptron.
15. control methods defrosted as claimed in claim 14, it is characterized in that, this refrigerant flow control mechanism has one second expansion valve, this second expansion valve couples an indoor heat converter, this first perceptron is located between this indoor heat converter and this second expansion valve, this second expansion valve more couples an outdoor heat converter, and this second perceptron is located between this second expansion valve and this outdoor heat converter.
CN201310729023.1A 2013-12-06 2013-12-18 Apparatus with dehumidification and defrosting abilities and controlling method thereof Pending CN104697253A (en)

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TW102144882A TWI539120B (en) 2013-12-06 2013-12-06 Apparatus with dehumidification and defrosting ability and controlling method thereof

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