CN103591732B - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
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- CN103591732B CN103591732B CN201310505029.0A CN201310505029A CN103591732B CN 103591732 B CN103591732 B CN 103591732B CN 201310505029 A CN201310505029 A CN 201310505029A CN 103591732 B CN103591732 B CN 103591732B
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Abstract
nullThe present invention relates to a kind of air conditioning system，By the gaseous coolant of High Temperature High Pressure to be delivered to the indoor heat-exchanger rig of correspondence through the second refrigerant pipeline，This indoor heat-exchanger rig is made condenser use and is heated，And the expanded valve of liquid refrigerants of the High Temperature High Pressure formed after indoor heat-exchanger rig heat exchange is converted to the liquid refrigerants of low-temp low-pressure，The liquid refrigerants of the low-temp low-pressure of generation is delivered to other one or more indoor heat-exchanger rig，Make vaporizer for indoor heat-exchanger rig to use，The liquid refrigerants of the low-temp low-pressure by receiving freezes，The expanded valve of high pressure gaseous coolant formed after indoor heat-exchanger rig heat exchange is converted to the liquid refrigerants of High Temperature High Pressure，The liquid refrigerants of this High Temperature High Pressure is exported through the first refrigerant pipeline，It is achieved thereby that the indoor heat-exchanger rig of a part in the heat-exchanger rig of interconnective multiple stage indoor is while heating，The indoor heat-exchanger rig of a part can also freeze，And then improve the utilization rate of indoor heat-exchanger rig.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air conditioning system.
Background technology
Along with the development of air-conditioning technical, DC frequency converting air-conditioner reaches its maturity technically, the most also
Arrive the accreditation of user, gradually come into huge numbers of families.And in Modern Urban Development, in order to make building
Attractive in appearance, the installation to air-conditioning products off-premises station limits more and more, and the installation site reducing off-premises station is exactly
One of them, therefore the application of business small central air-conditioning direct-current variable-frequency multi-connection air-conditioning products is more and more wider.
The advantage of direct-current variable-frequency multi-connection air-conditioning is that off-premises station only one of which compression refrigerating system, throttling use
Expansion valve, installs multiple stop valve, can connect machine in multiple stage, the quantity of interior machine and off-premises station stop valve
Logarithm is correlated with, because of the most multi-joint；Product can be according to the start ability need such as quantity, design temperature of interior machine
The output of the outer frequency-changeable compressor of conditioning chamber, and reach the comfort level of not chummery.
Existing direct-current variable is substantially two-pipe.When multiple stage indoor set uses simultaneously,
There will be the problem that both of which interferes.The scheme solved at present is to set each indoor set to open
Time, first detect its pattern with the First indoor set opened either with or without occurring conflicting, if any conflict, then
Indoor set to be opened is placed in holding state or is placed in the pattern identical with First indoor set；As
When there being indoor set first to be opened with heating mode, other indoor sets look on the bright side of things refrigeration, dehumidification mode time just open
Not moving, also can only open heating mode or standby, this has had a strong impact on the utilization of combined air conditioners indoor set
Rate.
Summary of the invention
The main object of the present invention is to provide a kind of air conditioning system, it is intended to realize combined air conditioners indoor set in system
Can heat again while cold, thus improve the utilization rate of indoor apparatus of air conditioner.
The present invention proposes a kind of air conditioning system, cold including the first refrigerant pipeline and second for transmitting coolant
Matchmaker's pipeline, this air conditioning system also includes the first indoor heat-exchanger rig and the second indoor heat-exchanger rig, described the
First end of one indoor heat-exchanger rig is connected with described first refrigerant pipeline by the first electromagnetic valve, the first Room
Second end of interior heat-exchanger rig is connected with described second refrigerant pipeline by the second electromagnetic valve；Described second Room
First end of interior heat-exchanger rig is connected with described first refrigerant pipeline by the 3rd electromagnetic valve, and the second indoor are changed
Second end of thermal is connected with described second refrigerant pipeline by the 4th electromagnetic valve；Described first electromagnetic valve
And it is provided with the first expansion valve, described 3rd electromagnetic valve between the first end of the described first indoor heat-exchanger rig
And it is provided with the second expansion valve between the first end of the second heat-exchanger rig；Described first indoor heat-exchanger rig
First end is by described first expansion valve and the first Unidirectional solenoid valve and the described second indoor heat-exchanger rig
Second end connection, described first Unidirectional solenoid valve is unidirectionally controlled coolant from the described first indoor heat-exchanger rig
First end flows to the second end of the described second indoor heat-exchanger rig.
Preferably, the second end of described first indoor heat-exchanger rig is through the second Unidirectional solenoid valve and described the
Two expansion valves and the first end connection of the second indoor heat-exchanger rig, described second Unidirectional solenoid valve is unidirectionally controlled
Coolant flows to the second of the described first indoor heat-exchanger rig from the first end of the described second indoor heat-exchanger rig
End.
Preferably, described first electromagnetic valve is through the first high-pressure stop valve and the described first indoor heat-exchanger rig
First end connection, described second electromagnetic valve is through the first low-pressure shutoff valve and the described first indoor heat-exchanger rig
Second end connection；Described 3rd electromagnetic valve is through the second high-pressure stop valve and the described second indoor heat-exchanger rig
First end connection, described 4th electromagnetic valve is through the second low-pressure shutoff valve and the described first indoor heat-exchanger rig
Second end connection.
Preferably, described heat-exchanger rig also includes floor heating heat exchanger device, described floor heating heat exchanger device
Second end is connected with described second refrigerant pipeline through the 5th electromagnetic valve, the first of described floor heating heat exchanger device
End divides two-way through the 3rd expansion valve, and road the 3rd Unidirectional solenoid valve is connected with described first refrigerant pipeline,
Another Lu Jing tetra-Unidirectional solenoid valve and first changes the second end and the second indoor heat exchange of indoor heat-exchanger rig
Second end of device connects.
Preferably, described 3rd Unidirectional solenoid valve is through the 3rd high-pressure stop valve and described floor heating heat exchanger device
The first end connection, described 5th electromagnetic valve is through the 3rd low-pressure shutoff valve and described floor heating heat exchanger device
Second end connection.
Preferably, described first expansion valve, the second expansion valve and the 3rd expansion valve are electric expansion valve.
Preferably, the first end of the described first indoor heat-exchanger rig and the heat exchanger of inside thereof, and second
Indoor first end of heat-exchanger rig and the heat exchanger of inside thereof are provided with temperature-detecting device.
The air conditioning system that the present invention proposes, by defeated through the second refrigerant pipeline by the gaseous coolant of High Temperature High Pressure
Delivering to the indoor heat-exchanger rig of correspondence, this indoor heat-exchanger rig is made condenser use and is heated, and by room
The expanded valve of liquid refrigerants of the High Temperature High Pressure formed after interior heat-exchanger rig heat exchange is converted to the liquid of low-temp low-pressure
State coolant, is delivered to other one or more indoor heat-exchanger rig by the liquid refrigerants of the low-temp low-pressure of generation,
Make vaporizer for indoor heat-exchanger rig to use, the liquid refrigerants system of the low-temp low-pressure by receiving
Cold, the expanded valve of high pressure gaseous coolant formed after indoor heat-exchanger rig heat exchange is converted to high temperature high
The liquid refrigerants of pressure, exports the liquid refrigerants of this High Temperature High Pressure through the first refrigerant pipeline, it is achieved thereby that
The indoor heat-exchanger rig of a part in the heat-exchanger rig of interconnective multiple stage indoor while heating,
The indoor heat-exchanger rig of a part can also freeze, and then improves the utilization rate of indoor heat-exchanger rig.
Accompanying drawing explanation
Fig. 1 is the structural representation of air conditioning system first embodiment of the present invention；
Fig. 2 is the structural representation of air conditioning system the second embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment is described further with regard to technical scheme.Should
Understanding, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
With reference to the structural representation that Fig. 1, Fig. 1 are air conditioning system first embodiment of the present invention.
The present embodiment propose air conditioning system, including for transmit the first refrigerant pipeline L1 of coolant, second
The indoor heat-exchanger rig H2 of the indoor heat-exchanger rig H1 and second of refrigerant pipeline L2 and first, described first Room
The first end D1 of interior heat-exchanger rig H1 is connected with described first refrigerant pipeline L1 by the first electromagnetic valve 10,
Second end D2 is connected with described second refrigerant pipeline L2 by the second electromagnetic valve 20；Described first indoor are changed
First end D3 of thermal H2 is connected with described first refrigerant pipeline L1 by the 3rd electromagnetic valve 30, the
Two end D4 are connected with described second refrigerant pipeline L2 by the 4th electromagnetic valve 40；Described first electromagnetic valve
It is provided with the first expansion valve 130, institute between 10 and the first end D1 of described first indoor heat-exchanger rig H1
State and be provided with the second expansion valve 140 between the 3rd electromagnetic valve 30 and the first end D3 of the second heat-exchanger rig H2；
The first end D1 of the described first indoor heat-exchanger rig H1 is single by described first expansion valve 130 and first
Connect to the second end D4 of electromagnetic valve 50 with described second indoor heat-exchanger rig H2, described first unidirectional
Electromagnetic valve 50 is unidirectionally controlled coolant and flows to described from the first end D1 of the described first indoor heat-exchanger rig H1
The second end D4 of the second indoor heat-exchanger rig H2.
In the present embodiment, the first indoor heat-exchanger rig H2 of indoor heat-exchanger rig H1 and second is all with refrigeration
During mode operation, the first refrigerant pipeline L1 is as the liquid refrigerants of intake line input High Temperature High Pressure, this height
Temperature high-pressure liquid coolant is low through the expansion generation low temperature of the first expansion valve 130 and the second expansion valve 140
The liquid refrigerants of pressure, the liquid refrigerants of this low-temp low-pressure flows into the described first indoor heat-exchanger rig H1 and described
In second heat-exchanger rig H2, the second refrigerant pipeline L2 is as the indoor heat-exchanger rig of output pipe output first
The gaseous coolant of the High Temperature High Pressure produced after heat exchange in H1 and described second heat-exchanger rig H2；First Room
When the indoor heat-exchanger rig H2 of interior heat-exchanger rig H1 and second all runs with heating mode, the second refrigerant pipeline
L2 inputs in the described first indoor heat-exchanger rig H1 and described second heat-exchanger rig H2 as intake line
The gaseous coolant of High Temperature High Pressure, the first refrigerant pipeline L1 is as the indoor heat-exchanger rig of output pipe output first
The liquid refrigerants of the High Temperature High Pressure produced after heat exchange in H1 and described second heat-exchanger rig H2；First Room
Interior heat-exchanger rig H1 heats, simultaneously during the second indoor heat-exchanger rig H2 refrigeration, and the second refrigerant pipeline L2
As intake line to the gaseous coolant of the described first indoor heat-exchanger rig H1 input High Temperature High Pressure, first is cold
Matchmaker pipeline L1 is as output pipe, and the liquid of the High Temperature High Pressure of the indoor heat-exchanger rig H2 warp of output second is cold
Matchmaker.
Further, the second end D2 of the described first indoor heat-exchanger rig H1 is through the second Unidirectional solenoid valve 60
And described second expansion valve 140 connects with the first end D3 of the second indoor heat-exchanger rig H2, described the
Two Unidirectional solenoid valves 60 are unidirectionally controlled the coolant the first end D3 stream from the described second indoor heat-exchanger rig H2
The second end D2 to the described first indoor heat-exchanger rig H1.
By arranging the between the second end D2 and second expansion valve 140 of the first indoor heat-exchanger rig H1
Two Unidirectional solenoid valves 60 and at second end of the indoor heat-exchanger rig H2 of the first expansion valve 130 and second
First Unidirectional solenoid valve 50 is set between D4, optionally uses the first indoor heat-exchanger rig H1 to heat,
Second indoor heat-exchanger rig H2 refrigeration simultaneously, or the first indoor heat-exchanger rig H1 refrigeration, simultaneously second
Indoor heat-exchanger rig H2 heats.Expand at the second end D2 and second of the first indoor heat-exchanger rig H1
Second Unidirectional solenoid valve 60 is set between valve 140, indoor by first with the gaseous coolant preventing High Temperature High Pressure
When the second end D2 of heat-exchanger rig H1 flows out, flow into the second indoor heat exchange through the second Unidirectional solenoid valve 60
In device H2.
With reference to Fig. 1, this air conditioning system includes 5 kinds of mode of operations, specific as follows:
1) the first indoor heat-exchanger rig H1 heats, simultaneously during the second indoor heat-exchanger rig H2 refrigeration, and control
Method processed is: control to open the second electromagnetic valve 20, the 3rd electromagnetic valve the 30, first Unidirectional solenoid valve 50, the
One expansion valve 130 and the second expansion valve 140, controls to cut out the first electromagnetic valve the 10, the 4th electromagnetism simultaneously
Valve 40 and the second Unidirectional solenoid valve 60, now corresponding operation principle is: the second refrigerant pipeline L2 stream
The gaseous coolant of the High Temperature High Pressure entered is carried out in the second electromagnetic valve 20 flows into the first indoor heat-exchanger rig H1
Heating, it is high that this high pressure gaseous coolant generates high temperature after the heat exchange of the first indoor heat-exchanger rig H1 processes
The liquid refrigerants of pressure, the liquid refrigerants of the High Temperature High Pressure that the first indoor heat-exchanger rig H1 flows out expands through first
The expansion of valve 130 is converted into the liquid refrigerants of low-temp low-pressure, and the liquid refrigerants of low-temp low-pressure is through first
Unidirectional solenoid valve 50 flows in the second heat-exchanger rig H2 and freezes, and the second indoor heat-exchanger rig H2 leads to
Cross heat exchange and process the gaseous coolant that the liquid refrigerants of low-temp low-pressure is converted to High Temperature High Pressure, this High Temperature High Pressure
Gaseous coolant be converted to the liquid refrigerants of low-temp low-pressure, the liquid of low-temp low-pressure through the second expansion valve 140
Coolant is flowed out by the first refrigerant pipeline L1 through the 3rd electromagnetic valve 30；
2) when the first indoor heat-exchanger rig H2 of indoor heat-exchanger rig H1 and second freezes simultaneously, controlling party
Method is: control to open first electromagnetic valve the 10, second electromagnetic valve the 20, the 3rd electromagnetic valve the 30, the 4th electromagnetic valve
40, the first expansion valve 130 and the second expansion valve 140, controls to cut out the first Unidirectional solenoid valve 50 simultaneously
With the second Unidirectional solenoid valve 60；Now the operation principle of air conditioning system is: the first refrigerant pipeline L1 input
The liquid refrigerants of High Temperature High Pressure flows into the first expansion valve 130, the liquid of High Temperature High Pressure through the first electromagnetic valve 10
Coolant is converted to the liquid refrigerants of low-temp low-pressure through the first expansion valve 130 expansion, this low-temp low-pressure
Liquid refrigerants by the first end D1 of the first indoor heat-exchanger rig H1 flow into the first indoor heat-exchanger rig H1 with
Freezing for the first indoor heat-exchanger rig H1, the liquid refrigerants of low-temp low-pressure is through the first indoor heat-exchanger rig
H1 heat exchange generates the gaseous coolant of High Temperature High Pressure after processing, the gaseous coolant of this High Temperature High Pressure is indoor by first
The second end D2 of heat-exchanger rig H1 flows out, and exports by the second refrigerant pipeline L2 through the second electromagnetic valve 20；
The liquid refrigerants of the High Temperature High Pressure that the first refrigerant pipeline L1 flows into flows into second through the 3rd electromagnetic valve 30 simultaneously
Expansion valve 140, it is low that the liquid refrigerants of High Temperature High Pressure is converted to low temperature through the expansion of the second expansion valve 140
The liquid refrigerants of pressure, the liquid refrigerants of this low-temp low-pressure is raw after the second indoor heat-exchanger rig H2 heat exchange processes
Become High Temperature High Pressure gaseous coolant, the gaseous coolant of High Temperature High Pressure through the 4th electromagnetic valve 40 by the second refrigerant pipe
Road L2 exports；
3) when the first indoor heat-exchanger rig H2 of indoor heat-exchanger rig H1 and second heats simultaneously, controlling party
Method is: control to open first electromagnetic valve the 10, second electromagnetic valve the 20, the 3rd electromagnetic valve the 30, the 4th electromagnetic valve
40, the first expansion valve 130 and the second expansion valve 140, controls to cut out the first Unidirectional solenoid valve 50 simultaneously
With the second Unidirectional solenoid valve 60；Now the operation principle of air conditioning system is: the second refrigerant pipeline L2 input
The gaseous coolant of High Temperature High Pressure flows into the first indoor heat-exchanger rig H1 through the second electromagnetic valve 20 and heats,
The gaseous coolant of High Temperature High Pressure generates High Temperature High Pressure liquid after the first indoor heat-exchanger rig H1 heat exchange processes
Coolant, the liquid refrigerants of this High Temperature High Pressure generates low-temp low-pressure through the expansion of the first expansion valve 130
Liquid refrigerants, the liquid refrigerants of this low-temp low-pressure is exported by the first refrigerant pipeline L1 through the first electromagnetic valve 10,
The gaseous coolant of the High Temperature High Pressure of the second refrigerant pipeline L2 input flows into second through the 4th electromagnetic valve 40 simultaneously
Indoor heat-exchanger rig H2 heats, and the gaseous coolant of High Temperature High Pressure changes through the second indoor heat-exchanger rig H2
Generating the liquid refrigerants of High Temperature High Pressure after heat treatment, the liquid refrigerants of this High Temperature High Pressure is through the second expansion valve 140
Expansion formed low-temp low-pressure liquid refrigerants, the liquid refrigerants of low-temp low-pressure is through the 3rd electromagnetic valve 30
By the first refrigerant pipeline L1 output；
4) the first indoor heat-exchanger rig H2 of indoor heat-exchanger rig H1 or second individually heats or freezes, with
As a example by first indoor heat-exchanger rig H1 individually heats, control method is: control closedown the 3rd electromagnetic valve 30,
4th electromagnetic valve 40 and the first Unidirectional solenoid valve the 50, second Unidirectional solenoid valve 60 and the second expansion valve
140, control to open the first electromagnetic valve the 10, second electromagnetic valve 20 and the first expansion valve 130 simultaneously；This
Time air conditioning system operation principle be: the gaseous coolant of the High Temperature High Pressure of the second refrigerant pipeline L2 input is through the
Two electromagnetic valves 20 flow into the first indoor heat-exchanger rig H1 and heat, and the gaseous coolant of High Temperature High Pressure is through the
One indoor heat-exchanger rig H1 heat exchange generates the liquid refrigerants of High Temperature High Pressure, the liquid of this High Temperature High Pressure after processing
Coolant is through the liquid refrigerants of the expansion generation low-temp low-pressure of the second expansion valve 140, the liquid of low-temp low-pressure
State coolant is exported by the first refrigerant pipeline L1 through the first electromagnetic valve 10；
5), when while of the first indoor heat-exchanger rig H1 refrigeration, the second indoor heat-exchanger rig H2 heats, control
Method is: control to open first electromagnetic valve the 10, the 4th electromagnetic valve the 40, second Unidirectional solenoid valve 60 first
Expansion valve 130 and the second expansion valve 140, control to close the second electromagnetic valve the 20, the 3rd electromagnetic valve simultaneously
30 and first Unidirectional solenoid valve 50；The operation principle that now air conditioning system is corresponding is: the gas of High Temperature High Pressure
State coolant enters in the second refrigerant pipeline L2 and the 4th electromagnetic valve 40 flow into the second indoor heat-exchanger rig H2
Row heats, and the gaseous coolant of this High Temperature High Pressure is raw after carrying out heat exchange process in the second indoor heat-exchanger rig H2
Becoming the liquid refrigerants of High Temperature High Pressure, the liquid refrigerants of High Temperature High Pressure is through the expansion of the second expansion valve 140
Generating the liquid refrigerants of low-temp low-pressure, the liquid refrigerants of this low-temp low-pressure flows into through the second Unidirectional solenoid valve 60
First indoor heat-exchanger rig H1 freezes, and the liquid refrigerants of low-temp low-pressure is through the first indoor heat-exchanger rig
H1 heat exchange processes the gaseous coolant being converted to High Temperature High Pressure, and the gaseous coolant that High Temperature High Pressure obtains expands through first
The expansion of valve 130 is converted to the liquid refrigerants of High Temperature High Pressure, and the liquid refrigerants of High Temperature High Pressure is through first
Electromagnetic valve 10 is flowed out by the first refrigerant pipeline L1, so that the coolant flowing into the first refrigerant pipeline L1 is high temperature
The liquid refrigerants of high pressure.
The present embodiment propose air conditioning system, by by the gaseous coolant of High Temperature High Pressure through the second refrigerant pipeline
L2 is delivered to the indoor heat-exchanger rig of correspondence, and now condenser use made by this indoor heat-exchanger rig, makes
Heat, and the expanded valve of liquid refrigerants of the High Temperature High Pressure formed after indoor heat-exchanger rig heat exchange is converted to low
The liquid refrigerants of temperature low pressure, the liquid refrigerants of low-temp low-pressure is delivered to simultaneously other one or more indoor
Heat-exchanger rig, does coolant to other indoor heat-exchanger rigs and uses, and now other indoor heat-exchanger rigs evaporate
Device uses, and freezes, the last and high pressure gaseous coolant that will be formed after indoor heat-exchanger rig heat exchange
Expanded valve is converted to the liquid refrigerants of High Temperature High Pressure, and the liquid refrigerants of this High Temperature High Pressure is cold through first
Matchmaker pipeline L1 exports, it is achieved thereby that a part of indoor in the heat-exchanger rig of interconnective multiple stage indoor are changed
Thermal is while heating, and the indoor heat-exchanger rig of a part can also freeze, and then improves
The utilization rate of indoor heat-exchanger rig.
With reference to the structural representation that Fig. 2, Fig. 2 are air conditioning system the second embodiment of the present invention.
Based on first embodiment, air conditioning system the second embodiment of the present invention is proposed, in described air conditioning system second
In embodiment, this air conditioning system also includes floor heating heat exchanger device H3, described floor heating heat exchanger device H3
The second end D6 be connected with described second refrigerant pipeline L2 through the 5th electromagnetic valve 100, described floor heating
The first end D5 of heat exchanger H3 is divided into two-way through the 3rd expansion valve 150, road the 3rd Unidirectional solenoid valve
110 are connected with described first refrigerant pipeline L1, and another Lu Jing tetra-Unidirectional solenoid valve 120 and first changes room
The second end D4 of the indoor heat-exchanger rig H2 of the second end D2 of interior heat-exchanger rig H1 and second connects.If
Putting floor heating heat exchanger device H3 makes the function of this air-conditioner abundanter, improves Consumer's Experience.Due to ground
Plate heating heat exchanger H3 has only to heat, thus floor heating heat exchanger device the first end D5 with
The 3rd Unidirectional solenoid valve 110 is connected, to prevent the liquid refrigerants of High Temperature High Pressure between first refrigerant pipeline L1
Flow in floor heating heat exchanger device H3.
When while the first indoor heat-exchanger rig H1 refrigeration, floor heating heat exchanger device H3 heats, coolant
The flow direction is: the second refrigerant pipeline L2 → the 5th electromagnetic valve 100 → floor heating heat exchanger device H3 → 3rd expands
Indoor heat-exchanger rig H1 → the first expansion valve 130 → the first of valve the 150 → the 4th Unidirectional solenoid valve 120 → the first
Electromagnetic valve 10 → the first refrigerant pipeline L1；Corresponding operation principle is: the second refrigerant pipeline L2 flows into
The gaseous coolant of High Temperature High Pressure flows into floor heating heat exchanger device H3 through the 5th electromagnetic valve 100 to carry out heating with right
Heating in indoor, floor heating heat exchanger device H3 is raw after the gaseous coolant of High Temperature High Pressure carries out heat exchange process
Becoming the liquid refrigerants of High Temperature High Pressure, the liquid refrigerants of this High Temperature High Pressure is made through the expansion of the 3rd expansion valve 150
With being converted to the liquid refrigerants of low-temp low-pressure, the liquid refrigerants of low-temp low-pressure is through the 4th Unidirectional solenoid valve 120
Flowing into the gaseous coolant generating High Temperature High Pressure after the first indoor heat-exchanger rig H1 carries out heat exchange process, high temperature is high
The gaseous coolant of pressure is through the gaseous coolant of the expansion generation High Temperature High Pressure of the first expansion valve 130, this height
The liquid refrigerants of temperature high pressure is flowed out by the first refrigerant pipeline L1 through the first electromagnetic valve 10.
When while the second indoor heat-exchanger rig H2 refrigeration, floor heating heat exchanger device H3 heats, coolant
The flow direction is: the second refrigerant pipeline L2 → the 5th electromagnetic valve 100 → floor heating heat exchanger device H3 → 3rd expands
Indoor heat-exchanger rig H2 → the second expansion valve the 140 → the 3rd of valve the 150 → the 4th Unidirectional solenoid valve 120 → the second
Electromagnetic valve 30 → the first refrigerant pipeline L1；Corresponding specific works principle and the first indoor heat-exchanger rig H1
Operation principle when floor heating heat exchanger device H3 heats while refrigeration is similar not to be repeated them here.
Further, described first expansion valve the 130, second expansion valve 140 and the 3rd expansion valve 150 are
Electric expansion valve, electric expansion valve has and is swift in response, regulates advantage accurately.Certainly, become at other
In shape embodiment, first expansion valve the 130, second expansion valve 140 and the 3rd expansion valve 150 are used as
Other type of expansion valve such as heating power expansion valve.
In the first embodiment and the second embodiment, described air conditioning system also includes compressor 70, condenser
80 and the cross valve 90 that connects with compressor 70；First end 91 of described cross valve 90 and described pressure
The outlet of contracting machine 70 connects, and the second end 92 is connected with the entrance of described compressor 70, the 3rd end 93 warp
Condenser 80 is connected with the first refrigerant pipeline L1, and the 4th end 94 is connected with the second refrigerant pipeline L2, with
By controlling being turned on and off of cross valve, to the first indoor heat-exchanger rig H1, the second indoor heat-exchanger rig
The gaseous coolant of H2 and base plate heating heat exchanger H3 offer High Temperature High Pressure or the liquid of High Temperature High Pressure are cold
Matchmaker, concrete control process is as follows:
When the first indoor heat-exchanger rig H2 of indoor heat-exchanger rig H1 and second all freezes, control four-way
Valve 90 cuts out, and the high pressure gaseous coolant of now compressor 70 output is through the first end 91 of cross valve 90
Flow in cross valve 90, and flow in condenser 80 through the 3rd end 93 of cross valve 90 and carry out at condensation
Reason obtains the liquid refrigerants of High Temperature High Pressure, and the liquid refrigerants of this High Temperature High Pressure flows in the first refrigerant pipeline L1,
The High Temperature High Pressure that the first indoor heat-exchanger rig H2 of indoor heat-exchanger rig H1 and second generates after freezing
Gaseous coolant flows in cross valve 90 through the 4th end 94 of the second refrigerant pipeline L2 and cross valve 90,
And flow in compressor 70 through the second end 92 of cross valve 90；At the first indoor heat-exchanger rig H1 and the
When two indoor heat-exchanger rig H2 all heat, controlling to open cross valve 90, now compressor 70 exports
The gaseous coolant of High Temperature High Pressure flow in cross valve 90 through the second end 92 of cross valve 90, and through four-way
4th end 94 of valve 90 flows out and flows in the second refrigerant pipeline L2, the first indoor heat-exchanger rig H1 and
The liquid refrigerants of the High Temperature High Pressure that the second indoor heat-exchanger rig H2 generates after heating is through the first refrigerant pipe
Road L1 flows in condenser 80, is converted to the gaseous coolant of High Temperature High Pressure and through four-way in condenser 80
3rd end 93 of valve 40 flows in cross valve 90, flows into compressor 70 through the first end 91 of cross valve 90
In；The while that first indoor heat-exchanger rig H1 heating during the second indoor heat-exchanger rig H2 refrigeration, control to open
Cross valve 90, the high pressure gaseous coolant of now compressor 70 output is through the second end 91 of cross valve 90
Flow in cross valve 90, and flow out through the 4th end 94 of cross valve 90 and flow into the second refrigerant pipeline L2
In, the gaseous coolant of High Temperature High Pressure is provided to the first indoor heat-exchanger rig H1 by the second refrigerant pipeline L2,
The gaseous coolant of the High Temperature High Pressure that the second indoor heat-exchanger rig H2 heat exchange is formed after processing is through the second expansion valve
The expansion of 140 is converted to the liquid refrigerants of High Temperature High Pressure, and the liquid refrigerants of this High Temperature High Pressure is cold through first
Matchmaker pipeline L1 flows into and carries out in condenser 80 processing the gaseous coolant generating High Temperature High Pressure, this High Temperature High Pressure
Gaseous coolant flow in cross valve 90 through the 3rd end 93 of cross valve 90, and by cross valve 90
First end 91 flows in compressor 70；First indoor heat-exchanger rig H1 refrigeration the second indoor heat exchange dress simultaneously
Put H2 to heat, heat what the second indoor heat-exchanger rig H2 simultaneously freezed with the first indoor heat-exchanger rig H1
Principle is identical, does not repeats them here.
First electromagnetic valve the 10, second electromagnetic valve the 20, the 3rd electromagnetic valve the 30, the 4th electromagnetic valve 40, first
Unidirectional solenoid valve the 50, second Unidirectional solenoid valve 60 and cross valve 90 are respectively by the control being connected electrically
Device (not shown) processed described first electromagnetic valve the 10, second electromagnetic valve the 20, the 3rd electromagnetic valve 30 of control,
4th electromagnetic valve the 40, first Unidirectional solenoid valve the 50, second Unidirectional solenoid valve 60 and the valve of cross valve 90
Door action.This controller can pass through chip microcontroller, by controller realize indoor heat-exchanger rig heat with
And the switching of refrigeration mode.
Further, the first end D1 of the described first indoor heat-exchanger rig H1 and the heat exchanger of inside thereof (are schemed
Not shown in), and the heat exchanger of the first end D3 of the second indoor heat-exchanger rig H2 and inside thereof is (in figure
Not shown) it is provided with temperature-detecting device.
By arranging temperature-detecting device, the first end D1 of the indoor heat-exchanger rig H1 of first can detect that
And the heat exchanger (not shown) of inside, and the first end D3 of the second indoor heat-exchanger rig H2
And the temperature of the heat exchanger (not shown) of inside, to control the first expansion valve 130 the most neatly
With the aperture of the second expansion valve 140, improve Energy Efficiency Ratio.Concrete control process is as follows:
When the first indoor heat-exchanger rig H1 heat-exchanger rig refrigeration the second indoor heat-exchanger rig H2 simultaneously heats
Time, the High Temperature High Pressure liquid coolant that the second indoor heat-exchanger rig H2 flows out is through the expansion of the second expansion valve 140
Effect generates the liquid refrigerants of low-temp low-pressure, and the liquid refrigerants of low-temp low-pressure is through the second Unidirectional solenoid valve simultaneously
60 flow into the first indoor heat-exchanger rig H1, and the aperture of the second expansion valve 140 is by the first indoor heat-exchanger rig
The middle portion temperature of the heat exchanger of the inside of the temperature of first end of H1 and the first indoor heat-exchanger rig H1
Difference determines, when the temperature of the first end and the first indoor heat exchange dress of the first indoor heat-exchanger rig H1
When the difference of the middle portion temperature putting the heat exchanger of the inside of H1 is more than or equal to threshold values (preferably 2 DEG C), control
Device (not shown) processed controls expansion valve and turns down a preset value, as the of the first indoor heat-exchanger rig H1
The difference of the middle portion temperature of the heat exchanger of the inside of the temperature of one end and the first indoor heat-exchanger rig H1 is little
When threshold values, controller (not shown) controls expansion valve and opens a big preset value, the liquid of low-temp low-pressure
State coolant generates high pressure gaseous coolant after the first indoor heat exchange dress heat exchange processes, and this high-temperature gas is cold
Matchmaker is through the liquid refrigerants of the expansion generation High Temperature High Pressure of the first expansion valve 130, this High Temperature High Pressure simultaneously
Liquid refrigerants flow out to condenser 80 time, the first expansion valve 130 standard-sized sheet (480 step)；In like manner the first Room
When the while that interior heat-exchanger rig H1 being in heating mode, the second indoor heat-exchanger rig H2 is in refrigeration mode, with
Above-mentioned principle is identical not to be repeated them here.
Also temperature can be set in the middle part of one end that condenser 80 is connected with indoor heat-exchanger rig and condenser 80
Degree detection device, is simultaneously in heats mould at the first indoor heat-exchanger rig H1 and floor heating heat exchanger device H3
During formula, throttle now by the first expansion valve 130 and the 3rd expansion valve 150, the first expansion valve 130
Determine by the difference of the temperature in the middle part of condenser 80 and condenser 80 with the aperture of the 3rd expansion valve 150,
The difference of the temperature in the middle part of the suction temperature and condenser 80 of condenser 80 is more than or equal to threshold values (preferably
It is 2 DEG C) time, control the first expansion valve 130 and the 3rd expansion valve 150 turns down, when condenser 80 and cold
The difference of the temperature in the middle part of condenser 80 is less than threshold values, then control the first expansion valve 130 and the 3rd expansion valve 150
Open big.When indoor floor heating temperature is less than 25 DEG C, air conditioning system can be by the indoor heat exchange of same indoor
Device and floor heating heat exchanger device H3 switch to heating mode, to improve the comfort level in room.
When one end that condenser 80 is connected with indoor heat-exchanger rig (such as the first indoor heat-exchanger rig H1)
Temperature is continuously less than the second threshold values (such as-3 DEG C) and outdoor in the default very first time is spaced (such as 3min)
When temperature is less than the 3rd threshold values (such as 0 DEG C) in the second time interval (such as 45min) continuously, control sky
Adjusting system enters defrosting mode, now at the first indoor heat-exchanger rig H2 of indoor heat-exchanger rig H1 and second
In refrigeration mode.
Air conditioning system is debugged and is overhauled and improve the service life of valve the most for convenience,
Described first electromagnetic valve 10 is through the first expansion valve 130 and the first high-pressure stop valve 160 and described first Room
The first end D1 connection of interior heat-exchanger rig H1, described second electromagnetic valve 20 is through the first low-pressure shutoff valve 170
Connect with the second end D2 of the described first indoor heat-exchanger rig H1；Described 3rd electromagnetic valve 30 is through second
High-pressure stop valve 180 connects with the first end D3 of the described first indoor heat-exchanger rig H2, described 4th electricity
Magnet valve 40 connects through the second end D2 of the second low-pressure shutoff valve 190 with the described first indoor heat-exchanger rig H1
Logical；Described 3rd Unidirectional solenoid valve 110 is through the 3rd high-pressure stop valve 190 and described floor heating heat exchanger device
The first end connection of H3, described 5th electromagnetic valve 100 is adopted with described floor through the 3rd low-pressure shutoff valve 210
The second end D6 connection of warm heat exchanger H3.In the present embodiment the first indoor heat-exchanger rig H1, second
Indoor heat-exchanger rig H2 and floor heating heat exchanger device H3 can individually be respectively provided with high-pressure stop valve and low pressure
Stop valve, arranges high-pressure stop valve simultaneously and low-pressure shutoff valve is only the preferred version of the present embodiment, such as
The first end D1 of the first indoor heat-exchanger rig H1 arranges the first high-pressure stop valve 160, and the second end D2 sets
Put the first low-pressure shutoff valve 170, and the second indoor heat-exchanger rig H2 and floor heating heat exchanger device H3 is equal
It is not provided with high-pressure stop valve and low-pressure shutoff valve.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention,
Every equivalent structure transformation utilizing description of the invention and accompanying drawing content to be made, or directly or indirectly use
In the technical field that other are relevant, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (7)
1. an air conditioning system, including the first refrigerant pipeline and the second refrigerant pipeline for transmitting coolant,
It is characterized in that, this air conditioning system also includes the first indoor heat-exchanger rig and the second indoor heat-exchanger rig, institute
The first end stating the first indoor heat-exchanger rig is connected with described first refrigerant pipeline by the first electromagnetic valve, the
Second end of one indoor heat-exchanger rig is connected with described second refrigerant pipeline by the second electromagnetic valve；Described
First end of two indoor heat-exchanger rigs is connected with described first refrigerant pipeline by the 3rd electromagnetic valve, the second Room
Second end of interior heat-exchanger rig is connected with described second refrigerant pipeline by the 4th electromagnetic valve；Described first electricity
The first expansion valve, described 3rd electricity it is provided with between first end of magnet valve and the described first indoor heat-exchanger rig
The second expansion valve it is provided with between magnet valve and the first end of the second heat-exchanger rig；Described first indoor heat exchange dress
The first end put is filled with the described second indoor heat exchange by described first expansion valve and the first Unidirectional solenoid valve
The the second end connection put, described first Unidirectional solenoid valve is unidirectionally controlled coolant from the described first indoor heat exchange dress
The first end put flows to the second end of the described second indoor heat-exchanger rig.
Air conditioning system the most according to claim 1, it is characterised in that the described first indoor heat exchange dress
The second end put is through the of the indoor heat-exchanger rig of the second Unidirectional solenoid valve and described second expansion valve and second
One end connects, and described second Unidirectional solenoid valve is unidirectionally controlled coolant from described second indoor heat-exchanger rig the
One end flows to the second end of the described first indoor heat-exchanger rig.
Air conditioning system the most according to claim 1, it is characterised in that described first electromagnetic valve is through
One high-pressure stop valve connects with the first end of described first indoor heat-exchanger rig, and described second electromagnetic valve is through the
One low-pressure shutoff valve connects with the second end of the described first indoor heat-exchanger rig；Described 3rd electromagnetic valve is through
Two high-pressure stop valves connect with the first end of described second indoor heat-exchanger rig, and described 4th electromagnetic valve is through the
Two low-pressure shutoff valves connect with the second end of the described first indoor heat-exchanger rig.
4. according to the air conditioning system described in right 1, it is characterised in that described air conditioning system also includes floor
Heating heat exchanger, the second end of described floor heating heat exchanger device is through the 5th electromagnetic valve and described second refrigerant pipe
Road connects, and the first end of described floor heating heat exchanger device divides two-way through the 3rd expansion valve, and a road the 3rd is single
Being connected with described first refrigerant pipeline to electromagnetic valve, another Lu Jing tetra-Unidirectional solenoid valve and first changes indoor
Second end of the second end of heat-exchanger rig and the second indoor heat-exchanger rig connects.
Air conditioning system the most according to claim 4, it is characterised in that described 3rd Unidirectional solenoid valve
Connect through the first end of the 3rd high-pressure stop valve with described floor heating heat exchanger device, described 5th electromagnetic valve warp
3rd low-pressure shutoff valve connects with the second end of described floor heating heat exchanger device.
Air conditioning system the most according to claim 4, it is characterised in that described first expansion valve,
Two expansion valves and the 3rd expansion valve are electric expansion valve.
Air conditioning system the most according to claim 1, it is characterised in that the described first indoor heat exchange dress
The first end put and the heat exchanger of inside thereof, and the first end of the second indoor heat-exchanger rig and inside thereof
Heat exchanger is provided with temperature-detecting device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310505029.0A CN103591732B (en) | 2013-10-23 | 2013-10-23 | Air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310505029.0A CN103591732B (en) | 2013-10-23 | 2013-10-23 | Air conditioning system |
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| CN103591732B true CN103591732B (en) | 2016-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106052212A (en) * | 2016-07-20 | 2016-10-26 | 珠海格力电器股份有限公司 | Multi-split system |
| CN109855191B (en) * | 2018-12-14 | 2020-07-17 | 青岛海信日立空调系统有限公司 | Multi-split air conditioner and control method thereof |
| CN113614457A (en) * | 2020-03-05 | 2021-11-05 | 日立江森自控空调有限公司 | Air conditioner |
| CN113669864A (en) * | 2021-08-12 | 2021-11-19 | 珠海市金品创业共享平台科技有限公司 | Heat pump type four-tube air conditioning system and control method of air conditioner with same |
| CN113669791A (en) * | 2021-08-12 | 2021-11-19 | 珠海市金品创业共享平台科技有限公司 | Three-pipe type single-cooling air conditioning system and control method of air conditioner with same |
| CN113834140B (en) * | 2021-08-31 | 2023-03-31 | 青岛海尔空调电子有限公司 | Control method and system of air conditioner |
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| CN103591732A (en) | 2014-02-19 |
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