CN108954898A - Evaporative condenser unit and its control method - Google Patents
Evaporative condenser unit and its control method Download PDFInfo
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- CN108954898A CN108954898A CN201811099398.3A CN201811099398A CN108954898A CN 108954898 A CN108954898 A CN 108954898A CN 201811099398 A CN201811099398 A CN 201811099398A CN 108954898 A CN108954898 A CN 108954898A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention relates to a kind of evaporative condenser unit and its control method, evaporative condenser unit includes: indoor heat exchanging pipe, including compressor and the indoor heat exchange unit being connected to compressor by pipeline；First outside heat exchanging pipe, including the first outside heat exchange unit；Heat exchange unit on the outside of heat exchanging pipe, including second Room on the outside of second Room；Wherein, indoor heat exchanging pipe selectively is connected to form refrigerating circuit with the first outside heat exchanging pipe, or is connected to form heating circuit with heat exchanging pipe on the outside of second Room.Above-mentioned evaporative condenser unit, since its refrigeration mode uses the different refrigerating circuit in path from heating mode and heats circuit, and it is different from sharing a circuit in the prior art, therefore the different advantages of the first outside heat exchanging pipe from heat exchanging pipe on the outside of second Room can be utilized respectively, it solves the defect that existing evaporative condenser unit can not have both good refrigeration effect and heating effect, evaporative condenser unit is made to be provided simultaneously with good refrigeration effect and heating effect.
Description
Technical field
The present invention relates to heat-exchange apparatus fields, more particularly to a kind of evaporative condenser unit and its control method.
Background technique
Vaporation-type cooling technology as it is a kind of using fluid boiling when the latent heat of vaporization new refrigeration technologies, in recent years one
It is directly continued to develop, more and more extensive answer is had in every field according to the evaporative condenser unit that evaporation cooling technique manufactures
Use prospect.Since the latent heat of vaporization of fluid is more much larger than the specific heat of fluid, the transpiration-cooled cooling of evaporative condenser unit
Effect highly significant.
In current evaporative condenser unit, outside heat-exchanger rig is condenser in refrigeration mode, in heating mode
For evaporator.When outdoor heat exchanger is condenser, there is the features such as condensation temperature is low, heat transfer effect is significant, to make to steam
Feel cold solidifying unit refrigerating efficiency with higher.However at the same time, outside heat-exchanger rig as evaporator in use, due to
Fault of construction causes evaporation and heat-exchange ineffective, so as to cause evaporative condenser unit heating operation scarce capacity, it is difficult to have
Reach good heating effect while good refrigeration effect.
Summary of the invention
Based on this, it is necessary to asking for good refrigeration effect and heating effect can not be had both simultaneously for evaporative condenser unit
Topic provides evaporative condenser unit and its control method a kind of while that have both good heating effect and refrigeration effect.
A kind of evaporative condenser unit, the evaporative condenser unit include:
Indoor heat exchanging pipe, including compressor and the indoor heat exchange unit being connected to the compressor by pipeline；
First outside heat exchanging pipe, including the first outside heat exchange unit；And
Heat exchange unit on the outside of heat exchanging pipe, including second Room on the outside of second Room；
Wherein, the indoor heat exchanging pipe selectively is connected to be formed and freeze back with first outside heat exchanging pipe
Road, or be connected to form heating circuit with heat exchanging pipe on the outside of the second Room.
Above-mentioned evaporative condenser unit, since its refrigeration mode and heating mode use the different refrigerating circuit and system in path
Hot loop, and be different from sharing a circuit in the prior art, therefore the first outside heat exchanging pipe and second can be utilized respectively
The different advantages of outside heat exchanging pipe, good refrigeration effect and heating effect can not be had both by solving existing evaporative condenser unit
The defect of fruit makes evaporative condenser unit be provided simultaneously with good refrigeration effect and heating effect.
In one embodiment, first outside heat exchanging pipe is parallel to heat exchanging pipe on the outside of the second Room
The indoor heat exchanging pipe.
In one embodiment, the evaporative condenser unit further include can be in the first connected state and the second connected state
Between the four-way valve that switches；
When the four-way valve is in first connected state, the indoor heat exchanging pipe and first outside
Heat exchanging pipe connection；
When the four-way valve is in second connected state, on the outside of the indoor heat exchanging pipe and the second Room
Heat exchanging pipe connection.
In one embodiment, first outside heat exchanging pipe includes the first valve and the second valve, and described the
One valve is connected to the input end of first outside heat exchange unit by pipeline, and second valve passes through described in pipeline connection
The outlet end of first outside heat exchange unit.
In one embodiment, heat exchanging pipe includes third valve and the 4th valve on the outside of the second Room, and described
Three valves are connected to the input end of heat exchange unit on the outside of the second Room by pipeline, and the 4th valve passes through described in pipeline connection
The outlet end of heat exchange unit on the outside of second Room.
In one embodiment, the indoor heat exchanging pipe further includes that first pressure sensor and second pressure sense
Device；The first pressure sensor is connected to the exhaust end of the compressor by pipeline to obtain the pressure value of the exhaust end,
The second pressure sensor is connected to the suction end of the compressor by pipeline to obtain the pressure value of the suction end.
In one embodiment, the indoor heat exchange unit is case tube heat exchanger, and the first outside heat exchange is single
Member is evaporative condenser, and heat exchange unit is evaporator fin or case tube heat exchanger on the outside of the second Room.
A kind of control method of evaporative condenser unit, the control method of the evaporative condenser unit the following steps are included:
Obtain control signal；
When the control signal is refrigeration mode signal, the indoor heat exchanging pipe and first outside exchange heat
Pipeline connection；
When the control signal is heating mode signal, exchange heat on the outside of the indoor heat exchanging pipe and the second Room
Pipeline connection.
In one embodiment, the evaporative condenser unit further includes four-way valve, and the four-way valve can be in the first connection
Switch between state and the second connected state；When the control signal is heating mode signal, the indoor heat exchanging pipe
With the step of heat exchanging pipe is connected on the outside of the second Room specifically includes the following steps:
When the control signal is heating mode signal, the four-way valve is in first connected state, the room
Inside heat exchanging pipe is connected to first outside heat exchanging pipe by the four-way valve, and obtains the air-breathing of the compressor
The pressure difference value at end and exhaust end；
When the suction end of the compressor and the pressure difference value of the exhaust end are greater than or equal to the four-way valve
It commutates after pressure difference value, the four-way valve is in second connected state, the indoor heat exchanging pipe and the second Room
Outside heat exchanging pipe is connected to by the four-way valve.
In one embodiment, first outside heat exchanging pipe includes the first valve and the second valve, and described the
Two outside heat exchanging pipes include third valve and the 4th valve；
When the indoor heat exchanging pipe is connected to first outside heat exchanging pipe, first valve with it is described
Second valve is in the open state, and the third valve is in an off state with the 4th valve；
When the indoor heat exchanging pipe is connected to heat exchanging pipe on the outside of the second Room, first valve with it is described
Second valve is in an off state, and the third valve and the 4th valve are in the open state.
Detailed description of the invention
Fig. 1 is the structural schematic diagram when evaporative condenser unit of the embodiment of the present invention is in refrigeration mode；
Fig. 2 is structural schematic diagram when evaporative condenser unit shown in FIG. 1 is in heating mode；
Fig. 3 is the flow chart of the control method of evaporative condenser unit shown in FIG. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figures 1 and 2, a kind of evaporative condenser unit 100 of the embodiment of the present invention, the evaporative condenser unit 100
With refrigeration mode and heating mode, to realize refrigeration and heat-production functions.
Specifically, evaporative condenser unit 100 includes indoor heat exchanging pipe 20, the first outside heat exchanging pipe 40 and the
Two outside heat exchanging pipes 60.When evaporative condenser unit 100 is in refrigeration mode, indoor heat exchanging pipe 20 and the first outdoor
The connection of side heat exchanging pipe 40 forms refrigerating circuit, and refrigerant constantly recycles in refrigerating circuit to carry out heat exchange.Work as evaporation
When condensation unit 100 is in heating mode, indoor heat exchanging pipe 20 is connected to formation heating with heat exchanging pipe 60 on the outside of second Room
Circuit, refrigerant constantly recycle in heating circuit to carry out heat exchange.
In this way, the different characteristics of the first outside heat exchanging pipe 40 and heat exchanging pipe 60 on the outside of second Room can be utilized respectively,
Solving existing evaporative condenser unit 100 can not have both good because of heating circuit and refrigerating circuit is formed using identical pipeline
Refrigeration effect and heating effect defect, so that evaporative condenser unit 100 is provided simultaneously with good refrigeration effect and heating effect.
Please continue to refer to Fig. 1 and Fig. 2, indoor heat exchanging pipe 20 includes compressor 21, indoor hot side changes unit, throttle list
Member 23 and four-way valve 24.
Wherein, compressor 21 is used for compressed gaseous refrigerant, including interconnected suction end and exhaust end.Indoor is changed
Hot cell 22 is case tube heat exchanger, and refrigerant can exchange in side heat exchange unit 22 with indoor air progress heat indoors, from
And is freezed to indoor air or heated.Throttling unit 23 is connected to 22 one end of indoor heat exchange unit by pipeline, section
Flowing unit 23 can be electric expansion valve or heating power expansion valve, for carrying out reducing pressure by regulating flow to refrigerant.Four-way valve 24 has
The first connected state and the second connected state that can be arbitrarily switched are exchanged heat with heat exchanging pipe 20 on the inside of communication chamber and the first indoor
Heat exchanging pipe 20 is on the inside of pipeline 20 or communication chamber with heat exchange unit 61 on the outside of second Room, to control the flow direction of refrigerant.
Specifically in one embodiment, four-way valve 24 includes the first selectively interconnected valve port, the second valve port, third
Valve port and the 4th valve port.The exhaust end of compressor 21 is connected to the first valve port by pipeline, the first outside heat exchanging pipe 40
And heat exchanging pipe 60 by pipeline is parallel to the second valve port on the outside of second Room, the suction end of third valve port and compressor 21 passes through pipe
Road connection, the 4th valve port are connected to indoor heat exchange unit 22 by pipeline.When four-way valve 24 is in the first connected state, the
One valve port is connected to the second valve port, and third valve port is connected to the 4th valve port.When four-way valve 24 is in the second connected state, first
Valve port is connected to the 4th valve port, and the second valve port is connected to third valve port.
Since the primary condition of the commutation (i.e. the first connected state and the second connected state switch) of four-way valve 24 is compression
The exhaust end of machine 21 and the pressure difference value of inspiratory limb are equal to or more than the commutation pressure difference value of four-way valve 24, and (i.e. four-way valve 24 is interior
Commutate frictional resistance in portion), therefore in some embodiments, evaporative condenser unit 100 further includes first pressure sensor 25 and the
Two pressure sensors 26, first pressure sensor 25 are connected to the exhaust end of compressor 21 by pipeline to obtain the pressure of exhaust end
Value, second pressure sensor 26 are connected to the suction end of compressor 21 by pipeline to obtain the pressure value of suction end, then calculate
The exhaust end of compressor 21 and the pressure difference value of suction end.
When the pressure difference value of the exhaust end of compressor 21 and suction end is less than the commutation pressure difference value of four-way valve 24, four-way
Valve 24 powers off and is in the first connected state.When the exhaust end of compressor 21 and the pressure difference value of suction end are equal to or more than four-way
When the commutation pressure difference value of valve 24, four-way valve 24 obtains electric and switches to second by the first connected state under the action of commutating pressure
Connected state.
First outside heat exchanging pipe 40 includes the first outside heat exchange unit 41, the first valve 43 and the second valve
45.Wherein, the first valve 43 is connected to the input end of the first outside heat exchange unit 41 by pipeline, and the second valve 45 passes through pipeline
It is connected to the outlet end of the first outside heat exchange unit 41.First outside heat exchange unit 41 is used as condenser in refrigeration mode,
Refrigerant can in the first outside heat exchange unit 41 exothermic condensation.First valve 43 and the second valve 45 then play control first
The effect of the on-off of outside heat exchanging pipe 40.
Specifically in one embodiment, the first outside heat exchange unit 41 is evaporative condenser, when evaporative condenser unit 100
When in refrigeration mode, evaporative condenser is used as condenser, there is that condensation temperature is low, heat transfer effect is significant and other effects,
Therefore refrigerating circuit refrigerating efficiency with higher.And since if evaporative condenser makes in heating circuit as evaporator
With, be limited to the compact modularized design of evaporative condenser and its use open circulation water system influence, circulating water temperature
It is difficult to be effectively controlled, it is unobvious to will lead to heat transfer effect of the evaporating heat exchanger as evaporator when, therefore in the present invention
In, the first outside heat exchange unit 41 only uses in cooling mode.
First valve 43 is electric butterfly valve, so as to four-way valve 24 and the separated of the first outside heat exchanging pipe 40 or pass through
It is logical, and the flow of the adjustable refrigerant into the first outside heat exchange unit 41.Second valve 45 is solenoid valve, so that first
The separated or perforation of outside heat exchange unit 41 and throttling unit 23.
In this way, first valve 43 and the second valve 45 are in opening state when evaporative condenser unit 100 is in refrigeration mode
State, therefore refrigerant can be flowed through from the first outside heat exchange unit 41.When evaporative condenser unit 100 is in heating mode, the
One valve 43 and the second valve 45 are in closed state, therefore refrigerant cannot be introduced into the first outside heat exchange unit 41.
Heat exchanging pipe 60 includes heat exchange unit 61, third valve 63 and the 4th valve on the outside of second Room on the outside of second Room
65.Wherein, third valve 63 is connected to the input end of heat exchange unit 61 on the outside of second Room by pipeline, and the 4th valve 65 passes through pipeline
It is connected to the outlet end of heat exchange unit 61 on the outside of second Room.Heat exchange unit 61 is used as evaporator in refrigeration mode on the outside of second Room,
Refrigerant can be in evaporation of absorbing heat in heat exchange unit 61 on the outside of second Room.Third valve 63 and the 4th valve 65 then play control second
The effect of the on-off of outside heat exchanging pipe 60.
When evaporative condenser unit 100 is in refrigeration mode, third valve 63 and the 4th valve 65 are in open state, therefore
Refrigerant heat exchange unit 61 can flow through on the outside of second Room.When evaporative condenser unit 100 is in heating mode, third valve 63
It is in closed state with the 4th valve 65, therefore refrigerant cannot be introduced into heat exchange unit 61 on the outside of second Room.
Specifically in some embodiments, heat exchange unit 61 is evaporator fin or case tube heat exchanger on the outside of second Room.Therefore
When evaporative condenser unit 100 is in heating mode, heat exchange unit 61 is as steaming on the outside of the second Room that formed by evaporator fin
It sends out device to use, effectively increases heat exchange efficiency, and reinforce exchanging heat using blower, heating effect is caused to dramatically increase.
In conclusion first valve 43 and the second valve 45 are in opening when evaporative condenser unit 100 is in refrigeration mode
State, third valve 63 and the 4th valve 65 are in off-state, and four-way valve 24 is in the first connected state, and the first of four-way valve 24
Valve port is connected to the second valve port, and third valve port is connected to the 4th valve port.In this way, the of the exhaust end of compressor 21, four-way valve 24
One valve port, the second valve port of four-way valve 24, the first valve 43, the first outside heat exchange unit 41, the second valve 45, indoor are changed
Hot cell 22, throttling unit 23, the 4th valve port of four-way valve 24, the third valve port of four-way valve 24, compressor 21 suction end according to
Secondary connection forms refrigerating circuit.
When evaporative condenser unit 100 is in heating mode, third valve 63 and the 4th valve 65 are in open state, and first
Valve 43 and the second valve 45 are in off-state, and four-way valve 24 is in the second connected state, the first valve port of four-way valve 24 and the
The connection of four valve ports, the second valve port are connected to third valve port.In this way, the first valve port of the exhaust end of compressor 21, four-way valve 24, four
4th valve port of port valve 24, indoor heat exchange unit 22, throttling unit 23, third valve 63, heat exchange unit 61 on the outside of second Room,
4th valve 65, the second valve port of four-way valve 24, the third valve port of four-way valve 24, compressor 21 suction end be sequentially communicated to be formed
Heat circuit.
The control method of above-mentioned evaporative condenser unit 100 the following steps are included:
S110: control signal is obtained.
Specifically, control signal includes refrigeration mode signal and heating mode signal, to control evaporative condenser unit 100
In refrigeration mode or heating mode.
S120: when controlling signal is refrigeration mode signal, indoor heat exchanging pipe 20 and the first outside heat exchanging pipe
40 connections.
Specifically, when the acquisition refrigeration mode signal of evaporative condenser unit 100 is in refrigeration mode, four-way valve 24 is powered off
And it is in the first connected state, the first valve 43 and the second valve 45 of the first outside heat exchanging pipe 40 are in the open state,
The third valve 63 of heat exchanging pipe 60 is in an off state with the 4th valve 65 on the outside of second Room, therefore indoor heat exchanging pipe 20
It is connected to form refrigerating circuit with the first outside heat exchanging pipe 40.
Compressor 21 is by the gaseous refrigerant of the gaseous refrigerant boil down to high temperature and pressure of low-temp low-pressure, the gas of high temperature and pressure
State refrigerant enters the first outside heat exchange unit 41 by the first valve 43 in open state, exchanges heat in the first outside single
Heat release forms liquid refrigerant in member 41, and liquid refrigerant is single by throttling after the second valve 45 outflow in open state
Member 23 reducing pressure by regulating flow after enter indoor heat exchange unit 22, indoors in side heat exchange unit 22 absorb room air heat and
Evaporation gasification, to realize the refrigerating function to room air.Gaseous refrigerant finally pass through the 4th valve port of four-way valve 24 with
Third valve port returns to the suction end of compressor 21.It is appreciated that the above process can constantly recycle progress, to make evaporative condenser
Unit 100 is continuously in refrigeration work.
S130: when controlling signal is heating mode signal, heat exchanging pipe on the outside of indoor heat exchanging pipe 20 and second Room
60 connections.
Since the primary condition of the commutation of four-way valve 24 is that the exhaust end of compressor 21 and the pressure difference value of inspiratory limb are equal to
Or the commutation pressure difference value (i.e. commutate frictional resistance for the inside of four-way valve 24) greater than four-way valve 24, therefore work as evaporative condenser unit
100 obtain after controlling signal is heating mode starting-up signal, and evaporative condenser unit 100 is run in a chiller mode first, thus
The pressure difference value of the exhaust end and inspiratory limb that make compressor 21 constantly increases, and is then run again with heating mode.Therefore, above-mentioned step
Rapid S130 specifically includes the following steps:
S131: when controlling signal is heating mode signal, four-way valve 24 is in the first connected state, indoor heat exchanger tube
Road 20 is connected to the first outside heat exchanging pipe 40 by four-way valve 24, and obtains the suction end of compressor 21 and the pressure of exhaust end
Power difference.
Specifically, when controlling signal is heating mode signal, evaporative condenser unit 100 is still transported in a chiller mode first
Row passes through first pressure sensor 25 and second pressure to improve the suction end of compressor 21 and the pressure difference value of exhaust end
Sensor 26 obtains the suction end of compressor 21 and the pressure value of exhaust end in real time, and the suction end of compressor 21 is then calculated
With the pressure difference value of exhaust end.
S133: when the suction end of compressor 21 and the pressure difference value of exhaust end are greater than or equal to the commutation pressure of four-way valve 24
After difference, four-way valve 24 is in the second connected state, and heat exchanging pipe 60 passes through four on the outside of indoor heat exchanging pipe 20 and second Room
Port valve 24 is connected to.
In one embodiment, after evaporative condenser unit 100 switches to heating mode by refrigeration mode, evaporative condenser unit
100 also keep in refrigeration mode, until the pressure difference value of the suction end of compressor 21 and exhaust end is greater than or equal to four-way
After the commutation pressure difference value of valve 24, four-way valve 24 be in electricity condition and commutation pressure effect under switch to the second connected state
State, the first valve 43 is in the open state, and the second valve 45 is in an off state, compressor 21, indoor heat exchange unit 22 with
First outside heat exchange unit 41 passes sequentially through pipeline connection.And if the suction end of compressor 21 and the pressure difference value of exhaust end
Less than the commutation pressure difference value of four-way valve 24, even if then four-way valve 24 is in obtain electricity condition, but due to lacking enough commutation pressures
Push it is dynamic, can not normal commutation.
When evaporative condenser unit 100 is in heating mode, the first valve port of four-way valve 24 is connected to the 4th valve port, and second
Valve port is connected to third valve port.Compressor 21 by the gaseous refrigerant of the gaseous refrigerant boil down to high temperature and pressure of low-temp low-pressure,
The gaseous refrigerant of high temperature and pressure enters the room side heat exchange unit 22 by third valve 63 in open state, and side is changed indoors
Heat release forms the refrigerant of liquid and realizes heat-production functions in hot cell 22, and liquid refrigerant passes through the 4th valve in open state
Door 65 flows out, and heat exchange unit 61 on the outside of second Room is entered after the reducing pressure by regulating flow of throttling unit 23, is exchanged heat on the outside of second Room
It absorbs heat in unit 61 and evaporates gasification.Gaseous refrigerant finally passes through the second valve port and third valve port of four-way valve 24, finally returns
To the suction end of compressor 21.
Above-mentioned evaporative condenser unit 100 and its control method, it is single due to using different the first outside heat exchange of structure
Member 41 forms different refrigerating circuits and heating circuit from heat exchange unit 61 on the outside of second Room, and there is no need to the heat exchange of the first outside
Heat exchange unit 61 uses in different mode as evaporator or condenser on the outside of unit 41 or second Room, incorporates the first outdoor
The respective advantage of heat exchange unit 61 on the outside of side heat exchange unit 41 and second Room, guarantees the evaporative condenser unit 100 in refrigeration mode
With higher heat exchange efficiency is all had in heating mode, reach good refrigeration or heating effect, and compressor 21 is closing always
The service life of compressor 21 is run and extended in reason range.Moreover, by pressure sensor detect compressor 21 exhaust end with
The pressure difference value of suction end switches refrigerating circuit flexibly accurately with heating circuit, functional reliability with higher.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of evaporative condenser unit (100), which is characterized in that the evaporative condenser unit (100) includes:
Indoor heat exchanging pipe (20) is changed including compressor (21) and with the compressor (21) by the indoor that pipeline is connected to
Hot cell (22)；
First outside heat exchanging pipe (40), including the first outside heat exchange unit (41)；And
Heat exchanging pipe (60) on the outside of second Room, including heat exchange unit (61) on the outside of second Room；
Wherein, the indoor heat exchanging pipe (20) is selectively connected to formation system with first outside heat exchanging pipe (40)
Cold loop, or formation heating circuit is connected to heat exchanging pipe (60) on the outside of the second Room.
2. evaporative condenser unit (100) according to claim 1, which is characterized in that first outside heat exchanging pipe
(40) the indoor heat exchanging pipe (20) is parallel to heat exchanging pipe (60) on the outside of the second Room.
3. evaporative condenser unit (100) according to claim 1, which is characterized in that the evaporative condenser unit (100) is also
Including the four-way valve (24) that can switch between the first connected state and the second connected state；
When the four-way valve (24) is in first connected state, the indoor heat exchanging pipe (20) and first Room
Outside heat exchanging pipe (40) connection；
When the four-way valve (24) is in second connected state, the indoor heat exchanging pipe (20) and the second Room
Outside heat exchanging pipe (60) connection.
4. evaporative condenser unit (100) according to claim 1, which is characterized in that first outside heat exchanging pipe
It (40) include the first valve (43) and the second valve (45) that first valve (43) is connected to first outside by pipeline
The input end of heat exchange unit (41), second valve (45) are connected to first outside heat exchange unit (41) by pipeline
Outlet end.
5. evaporative condenser unit (100) according to claim 1, which is characterized in that heat exchanging pipe on the outside of the second Room
It (60) include third valve (63) and the 4th valve (65), the third valve (63) is connected on the outside of the second Room by pipeline
The input end of heat exchange unit (61), the 4th valve (65) are connected to heat exchange unit (61) on the outside of the second Room by pipeline
Outlet end.
6. evaporative condenser unit (100) according to claim 1, which is characterized in that the indoor heat exchanging pipe (20)
It further include first pressure sensor (25) and second pressure sensor (26)；The first pressure sensor (25) is connected by pipeline
Lead to the exhaust end of the compressor (21) to obtain the pressure value of the exhaust end, the second pressure sensor (26) passes through pipe
Road is connected to the suction end of the compressor (21) to obtain the pressure value of the suction end.
7. evaporative condenser unit (100) according to claim 1, which is characterized in that the indoor heat exchange unit (22)
For case tube heat exchanger, first outside heat exchange unit (41) is evaporative condenser, heat exchange unit on the outside of the second Room
It (61) is evaporator fin or case tube heat exchanger.
8. a kind of control method of evaporative condenser unit (100), which is characterized in that the control of the evaporative condenser unit (100)
Method the following steps are included:
Obtain control signal；
When the control signal is refrigeration mode signal, the indoor heat exchanging pipe (20) and first outside exchange heat
Pipeline (40) connection；
When the control signal is heating mode signal, exchange heat on the outside of the indoor heat exchanging pipe (20) and the second Room
Pipeline (60) connection.
9. the control method of evaporative condenser unit (100) according to claim 8, which is characterized in that the evaporative condenser
Unit (100) further includes four-way valve (24), and the four-way valve (24) can cut between the first connected state and the second connected state
It changes；When the control signal is heating mode signal, exchange heat on the outside of the indoor heat exchanging pipe (20) and the second Room
Pipeline (60) be connected to the step of specifically includes the following steps:
When the control signal is heating mode signal, the four-way valve (24) is in first connected state, the room
Inside heat exchanging pipe (20) is connected to first outside heat exchanging pipe (40) by the four-way valve (24), and described in acquisition
The suction end of compressor (21) and the pressure difference value of exhaust end；
When the suction end of the compressor (21) and the pressure difference value of the exhaust end are greater than or equal to the four-way valve
(24) after commutation pressure difference value, the four-way valve (24) is in second connected state, the indoor heat exchanging pipe
(20) it is connected to heat exchanging pipe (60) on the outside of the second Room by the four-way valve (24).
10. the control method of evaporative condenser unit (100) according to claim 8, which is characterized in that described first is outdoor
Side heat exchanging pipe (40) includes the first valve (43) and the second valve (45), and heat exchanging pipe (60) includes the on the outside of the second Room
Three valves (63) and the 4th valve (65)；
When the indoor heat exchanging pipe (20) is connected to first outside heat exchanging pipe (40), first valve
(43) in the open state with second valve (45), the third valve (63) and the 4th valve (65) are in and disconnect
State；
When the indoor heat exchanging pipe (20) with heat exchanging pipe (60) is connected on the outside of the second Room when, first valve
(43) it is in an off state with second valve (45), the third valve (63) and the 4th valve (65) are in and open
State.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099398.3A CN108954898A (en) | 2018-09-20 | 2018-09-20 | Evaporative condenser unit and its control method |
| PCT/CN2018/121023 WO2020056943A1 (en) | 2018-09-20 | 2018-12-14 | Evaporative condensing unit and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099398.3A CN108954898A (en) | 2018-09-20 | 2018-09-20 | Evaporative condenser unit and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108954898A true CN108954898A (en) | 2018-12-07 |
Family
ID=64471794
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811099398.3A Pending CN108954898A (en) | 2018-09-20 | 2018-09-20 | Evaporative condenser unit and its control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108954898A (en) |
| WO (1) | WO2020056943A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056943A1 (en) * | 2018-09-20 | 2020-03-26 | 珠海格力电器股份有限公司 | Evaporative condensing unit and control method therefor |
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| WO2020056943A1 (en) | 2020-03-26 |
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