CN106642852A - Three-level composite type fast defrosting system for refrigerating device - Google Patents
Three-level composite type fast defrosting system for refrigerating device Download PDFInfo
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- CN106642852A CN106642852A CN201611261564.6A CN201611261564A CN106642852A CN 106642852 A CN106642852 A CN 106642852A CN 201611261564 A CN201611261564 A CN 201611261564A CN 106642852 A CN106642852 A CN 106642852A
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- valve
- heat exchanger
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- refrigerating plant
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
Abstract
The invention relates to a three-level composite type fast defrosting system for a refrigerating device. The three-level composite type fast defrosting system is combined by a first-level temperature-increasing heating subsystem of the indoor-side heat exchanger of the refrigerating device, a second-level temperature-increasing heating subsystem of a refrigerating device compressor and a third-level temperature-increasing heating subsystem of the outdoor-side heat exchanger of the refrigerating device. The three-level composite type fast defrosting system has the advantages that fast defrosting of various indoor-side heat exchangers and outdoor-side heat exchangers of refrigerating and air conditioning devices is achieved respectively by combining different functions of the three temperature-increasing heating subsystems, and the technical difficulties that currently the refrigerating device is slow in defrosting and poor in defrosting effect, the defrosting effect cannot be controlled effectively, defrosting is not thorough, strong discomfort is brought to an indoor environment during defrosting, and the like are solved.
Description
Technical field
The present invention relates to a kind of rapid frost melting system, specifically a kind of refrigerating plant three-level combined type rapid frost melting system
System.
Background technology
In the operation of air source heat pump and freezing and refrigeration refrigerating plant, when humid air is flowed through equal to or less than 0 DEG C of evaporation
During device, evaporator surface just occurs frost, and the resistance for causing evaporator air side increases, and has had a strong impact on source pump
Or the operational efficiency of refrigerating plant, therefore, how effective defrosting is into a urgent problem, the tradition commonly used at present
Defrosting method is a variety of：Man-made defrosting, hot gas defrosting, electric heater defrosting, water drenching defrosting, inverted running defrosting, temperature control defrosting
Deng, but when carrying out defrosting using these conventional methods, some defrosting speeds are poor compared with slow, defrosting effect, some defrosting effects without
Method is effectively controlled, defrosting is not thorough, and what is had brings very strong discomfort in defrosting to indoor environment.Therefore it is quick high
The defrosting method direct relation air source heat pump of effect and the popularization and application of associated refrigeration device.
The content of the invention
The purpose of the present invention precisely in order to provide a kind of refrigerating plant three-level combined type rapid frost melting system, to solve at present
Defrosting speed is slow during refrigerating plant defrosting, defrosting effect is poor, defrosting effect cannot be effectively controlled, defrosting thorough, defrosting
When bring the technical barriers such as very strong discomfort to indoor environment.
" the compound temperature raising gain of heat rapid frost melting technology of three-level " proposed by the present invention increases the one-level temperature raising of indoor heat exchanger
Thermal sub-system, two grades of temperature raising gain of heat subsystems of refrigerating plant compressor, the three-level temperature raising of refrigerating plant outside heat exchanger increase
Three temperature raising gain of heat technologies of thermal sub-system synchronize compound.Temperature raising gain of heat technology of indoor heat exchanger：By interior
Side it is preposition PTC electric heater preheating lifted evaporating temperature and heat exchanger caloric receptivity, by the rearmounted PTC electric heater in indoor again
Heat lifts wind pushing temperature and eliminates air-supply cold wind sense；The secondary temperature raising gain of heat technology of compressor side：By inverter compressor and tonifying Qi
Gain of heat technology dramatically increases pressure at expulsion and mass flow, causes being obviously improved for total heat exhaust and condensation temperature；Refrigerating plant
Three temperature raising gain of heat technologies of outdoor heat exchanger：Defrosting heat exchange is adjusted by outside motorized adjustment grid and outdoor adjustable speed fan
The intake of device, causes the further lifting of condensation temperature and condensation thermal discharge.Experiments verify that, " the three-level temperature raising gain of heat is answered for this
Close rapid frost melting technology " compared with conventional single inverse circulation defrosting technology, by the defrosting time of outdoor air conditioner heat exchanger by 8-
10min foreshortens to complete defrosting in 1.5-3min, and can outstanding problem from effectively solving defrosting process to blows cold wind indoors.
The purpose of the present invention can be realized by following technique measures：
The refrigerating plant three-level combined type rapid frost melting system of the present invention is increased by the one-level temperature raising of refrigerating plant indoor heat exchanger
Thermal sub-system, two grades of temperature raising gain of heat subsystems of refrigerating plant compressor, the three-level temperature raising of refrigerating plant outside heat exchanger increase
Thermal sub-system is combined；The one-level temperature raising gain of heat subsystem of refrigerating plant indoor heat exchanger by indoor heat exchanger,
Indoor adjustable speed fan, electric room adjust grid, the preposition electric heater in indoor, the rearmounted electric heater in indoor and accordingly connect
Adapter road and valve are constituted；Two grades of temperature raising gain of heat subsystems of the refrigerating plant compressor are changed by inverter compressor, four-way
To valve, outdoor heat exchanger, the first check valve, the second check valve, the 3rd check valve, the 4th check valve, the 5th check valve, interior
Side heat exchanger, liquid storage dryer, the first control valve, the second control valve, the 3rd control valve, bypass expansion valve, economizer, main road are swollen
Swollen valve, gas-liquid separator and pipeline composition；The three-level temperature raising gain of heat subsystem of refrigerating plant outside heat exchanger is by room
Outside heat exchanger, outdoor adjustable speed fan, outdoor motorized adjustment grid, the preposition electric heater in outside and connecting pipe and valve
Composition；Wherein described room air is adjusted after air quantity, successively by the preposition electricity in indoor by indoor motorized adjustment grid
Heater, indoor heat exchanger, the rearmounted electric heater in indoor, indoor adjustable speed fan are re-fed into interior, for meeting interior
Rapid frost melting without creeping chill；Wherein described inverter compressor exhaust outlet is by four-way change-over valve and corresponding connecting line point
It is not connected with outdoor heat exchanger, indoor heat exchanger, gas-liquid separator the corresponding interface；The gas-liquid separator outlet is accessed and become
Frequency formula compressor air suction mouth；Another interface of the outdoor heat exchanger and the first one-way valved outlet and the second one-way valve inlet phase
Connection, the second one-way valved outlet is connected with liquid storage dryer and the 4th one-way valved outlet, and liquid storage dryer is exported respectively with the
The entrance of one control valve, the entrance of the second control valve, the entrance of the 3rd control valve are connected, and first controls the outlet of valve and bypass
The entrance of expansion valve is connected, and the outlet of bypass expansion valve is connected with the second entrance of economizer, the first entrance of economizer
It is connected with the outlet of the 3rd control valve, the first outlet of economizer outlet respectively with the second control valve, main road expansion valve
Entrance is connected, and the second outlet of economizer is connected by the 5th check valve with the mixed gas port of inverter compressor, main road expansion
The outlet of valve connects entrance and the room of the first one-way valve inlet and the 3rd one-way valve inlet, the 3rd one-way valved outlet and the 4th check valve
Heat exchanger another interface in inner side is connected；The outdoor air successively passes through Jing after outside motorized adjustment grid adjusts air quantity
The preposition electric heater in outside, outdoor heat exchanger, outdoor adjustable speed fan are discharged to outdoor again, for meeting outdoor heat exchanger
Rapid frost melting.
Outdoor adjustable speed fan of the present invention and indoor adjustable speed fan are any one in frequency conversion fan or gear shift blower fan
Kind；The preposition electric heater in described outside, the preposition electric heater in indoor, the rearmounted electric heater in indoor are PTC electrical heating
Any one in device, electromagnetic heater, ceramic fiber heater or heat by infrared ceramics device；Described outdoor heat exchanger,
Indoor heat exchanger is any one in fin-tube type, stacked or parallel flow heat exchanger；Described outdoor heat exchanger, room
When inner side heat exchanger is multiple heat exchangers in parallel, up and down in parallel, left and right can be adopted in parallel or any one in parallel connection in front and back；Institute
Bypass expansion valve and main road expansion valve are stated for any one in capillary, heating power expansion valve or electric expansion valve；The economy
Device is any one version of plate type heat exchanger or double-tube heat exchanger；It is described to control valve for motor-driven valve, magnetic valve or manual
Any one of stop valve.
Beneficial effects of the present invention are as follows：
A kind of refrigerating plant three-level combined type rapid frost melting system that the present invention is provided, by arranging room in air-conditioning duct indoors
Inner side front preheating process device, rearmounted reheater and indoor adjustable speed fan, increase within air-conditioning systems the secondary gain of heat system of power-equipment
Tonifying Qi energization mechanism, outdoor heat exchanger install outside motorized adjustment grid, heat pump type air conditioning system outdoor heat exchanger and
The equipment such as outdoor adjustable speed fan, are remarkably improved comfortableness of the air-conditioning system when defrosting mode of operation is performed in room, improve
System is to indoor heat capacity and heating efficiency.To contract significantly when outdoor heat exchanger rapid frost melting pattern is carried out simultaneously
The short defrosting time, can preferably solve outdoor heat exchanger defrosting time length, defrosting effect under ultralow-temperature operation conditions poor so that empty
The problem that adjusting system cannot run.
Description of the drawings
Fig. 1 is the structure principle chart of the present invention.
Fig. 2 is outside rapid frost melting+interior without creeping chill mode of operation flow chart.
Fig. 3 is inverted running rapid frost melting+interior without creeping chill mode of operation flow chart.
Fig. 4 is inverted running rapid frost melting+tonifying Qi+interior without creeping chill mode of operation flow chart.
In figure：1 be inverter compressor, 2 be four-way change-over valve, 3-1 be outdoor heat exchanger, 3-2 be outdoor speed-regulating wind
Machine, 3-3 be outdoor motorized adjustment grid, 3-4 be the preposition electric heater in outside, 4-1 be the first check valve, 4-2 be second single
To valve, 4-3 be the 3rd check valve, 4-4 be the 4th check valve, 5-1 be indoor heat exchanger, 5-2 be indoor adjustable speed fan, 5-3
It is that to adjust grid, 5-4 be that the preposition electric heater in indoor, 5-5 are the rearmounted electric heaters in indoor, 6 are that liquid storage is done to electric room
Dry device, 7-1 be the first control valve, 7-2 be the second control valve, 7-3 be the 3rd control valve, 8 be bypass expansion valve, 9 be economizer,
10 it is main road expansion valve, 11 is gas-liquid separator.
Specific embodiment
The present invention is below with reference to embodiment（Accompanying drawing）It is described further.
As shown in figure 1, the refrigerating plant three-level combined type rapid frost melting system of the present invention is exchanged heat by refrigerating plant indoor
The one-level temperature raising gain of heat subsystem of device, two grades of temperature raising gain of heat subsystems of refrigerating plant compressor, the heat exchange of refrigerating plant outside
The three-level temperature raising gain of heat subsystem of device is combined.The one-level temperature raising gain of heat subsystem of refrigerating plant indoor heat exchanger by
Indoor heat exchanger 5-1, indoor adjustable speed fan 5-2, electric room adjust grid 5-3, the preposition electric heater 5-4 in indoor, room
The composition such as the rearmounted electric heater 5-5 in inner side and connecting pipe and valve；Two grades of temperature raising gain of heat of the refrigerating plant compressor
Subsystem is by inverter compressor 1, four-way change-over valve 2, outdoor heat exchanger 3-1, the first check valve 4-1, the second check valve 4-
2nd, the 3rd check valve 4-3, the 4th check valve 4-4, the 5th check valve 4-5, indoor heat exchanger 5-1, liquid storage dryer 6, first
Control valve 7-1, the second control valve 7-2, the 3rd control valve 7-3, bypass expansion valve 8, economizer 9, main road expansion valve 10, gas-liquid point
Constitute from device 11 and pipeline；The three-level temperature raising gain of heat subsystem of refrigerating plant outside heat exchanger is by outdoor heat exchanger
3-1, outdoor adjustable speed fan 3-2, outdoor motorized adjustment grid 3-3, the preposition electric heater 3-4 in outside and connecting pipe and valve
The composition such as door.The one-level temperature raising gain of heat subsystem of wherein described refrigerating plant indoor heat exchanger it is characterized in that：Interior Space
Gas is adjusted after air quantity by indoor motorized adjustment grid 5-3, is successively changed by the preposition electric heater 5-4 in indoor, indoor
Hot device 5-1, the rearmounted electric heater 5-5 in indoor, interior adjustable speed fan 5-2 are re-fed into interior, for meeting interior without creeping chill
Rapid frost melting.Two grades of temperature raising gain of heat subsystems of wherein described refrigerating plant compressor it is characterized in that：The frequency conversion type
The exhaust outlet of compressor 1 is exchanged heat respectively by four-way change-over valve 2 and corresponding connecting line with outdoor heat exchanger 3-1, indoor
Device 5-1, the connection of the corresponding interface of gas-liquid separator 11；The outlet of the gas-liquid separator 11 accesses the air entry of inverter compressor 1；Institute
Another interface for stating outdoor heat exchanger 3-1 is exported and the second check valve 4-2 entrances are connected with the first check valve 4-1, and second
Check valve 4-2 is exported to be exported with the check valve 4-4 of liquid storage dryer 6 and the 4th and is connected, and liquid storage dryer 6 is exported respectively with first
The entrance of control valve 7-1, the entrance of the second control valve 7-2, the entrance of the 3rd control valve 7-3 are connected, the first control valve 7-1's
Outlet is connected with the entrance of bypass expansion valve 8, and the outlet of bypass expansion valve 8 is connected with the second entrance of economizer 9, economical
The first entrance of device 9 is connected with the outlet of the 3rd control valve 7-3, and the first outlet of economizer 9 controls valve 7-2 with second respectively
Outlet, the entrance of main road expansion valve 10 be connected, the second outlet of economizer 9 is by the 5th check valve 4-5 and frequency conversion type pressure
The mixed gas port of contracting machine 1 connects, and the outlet of main road expansion valve 10 connects the first check valve 4-1 entrances and the 3rd check valve 4-3 entrances, the
Three check valve 4-3 are exported and the entrance of the 4th check valve 4-4 is connected with another interfaces of indoor heat exchanger 5-1.It is wherein described
The three-level temperature raising gain of heat subsystem of refrigerating plant outside heat exchanger it is characterized in that：Outdoor air Jing outsides motorized adjustment lattice
Grid 3-3 is adjusted after air quantity, successively by the preposition electric heater 3-4 in outside, outdoor heat exchanger 3-1, outdoor adjustable speed fan 3-2
Again outdoor is discharged to, for meeting the rapid frost melting of outdoor heat exchanger.
Outdoor adjustable speed fan 3-2 of the present invention is in frequency conversion fan or gear shift blower fan with indoor adjustable speed fan 5-2
Any one form.The preposition electric heater 3-4 in described outside, the preposition electric heater 5-4 in indoor, the rearmounted electricity in indoor add
Hot device 5-5 is any one form of PTC electric heater, electromagnetic heater, ceramic fiber heater or heat by infrared ceramics device.
Described outdoor heat exchanger 3-1, indoor heat exchanger 5-1 is any in fin-tube type, stacked or parallel flow heat exchanger
A kind of version.When described outdoor heat exchanger 3-1, indoor heat exchanger 5-1 is multiple heat exchangers in parallel, can adopt upper
Lower in parallel, left and right is in parallel, any one form in parallel connection in front and back.The bypass expansion valve 8 and main road expansion valve 10 are capillary
Any one form of pipe, heating power expansion valve or electric expansion valve；The economizer 9 is plate type heat exchanger or double-tube heat exchanger
Any one version.It is described to control any one knot that valve 7-1,7-2,7-3 are motor-driven valve, magnetic valve or hand stop valve
Configuration formula.
According to the switching combining of above-mentioned 3 subsystems, the present invention's is capable of achieving three kinds of mode of operations：
（1）Outside rapid frost melting+interior is without creeping chill mode of operation
Outside rapid frost melting+interior is illustrated in figure 2 without creeping chill mode of operation flow chart.When winter outdoor heat exchanger frosting
When not serious, this mode of operation can be adopted.The preposition electric heater 5-4 in indoor, the rearmounted electric heater 5-5 in indoor, the first control
Valve 7-1 processed, the 3rd control valve 7-3 are closed, and outdoor adjustable speed fan 3-2, outdoor motorized adjustment grid 3-3, the preposition electricity in outside add
Hot device 3-4, indoor adjustable speed fan 5-2, electric room adjust grid 5-3, the second control valve 7-2 and open.Two grades of compressor side is carried
Warm gain of heat subsystem flow process：The high-temperature high-pressure gas refrigerant that inverter compressor 1 is discharged is switched by four-way change-over valve 2, is entered
Enter to get in and be changed into supercooling or saturation liquid refrigerant after the heat exchanger 5-1 condensation heat releases of side, entered by the 4th check valve 4-4
Liquid storage dryer 6, then enters main road expansion valve 10 by second controller 7-2, and throttling is changed into the gas-liquid two-phase of low-temp low-pressure
After cold-producing medium, overheated or saturation gaseous refrigerant is changed into outdoor heat exchanger 3-1 heat absorption evaporations by the first check valve 4-1
Agent, then gas-liquid separator 11 is switched into by four-way change-over valve 2, subsequently under the air entry entrance of inverter compressor 1
One circulation.The one-level temperature raising gain of heat subsystem flow process of refrigerating plant indoor heat exchanger：Electric room is passed through by indoor air
Grid 5-3, the preposition electric heater 5-4 in indoor are adjusted, side heat exchanger 5-1 is got in and is absorbed thermal temperature rising, Ran Houzai
After the rearmounted electric heater 5-5 in indoor, adjustable speed fan 5-2 sends into interior in Jing rooms, meets the comfortableness of indoor human body.System
The three-level temperature raising gain of heat subsystem flow process of device for cooling outdoor heat exchanger：By outdoor air by outdoor motorized adjustment grid 3-
3, absorb after heat intensification into the preposition electric heater 3-4 in outside, enter back into outdoor heat exchanger 3-1 and release heat for changing
The defrosting on hot device surface, most after Jing outdoors adjustable speed fan 3-2 be discharged to outdoor again.
（2）Inverted running rapid frost melting+interior is without creeping chill mode of operation
Outside rapid frost melting+interior is illustrated in figure 3 without creeping chill mode of operation flow chart.When winter outdoor heat exchanger frosting
When serious, this mode of operation can be adopted.Outdoor adjustable speed fan 3-2, outdoor motorized adjustment grid 3-3, the preposition electrical heating in outside
Device 3-4, the first control valve 7-1, the 3rd control valve 7-3 are closed, and indoor adjustable speed fan 5-2, electric room adjust grid 5-3, room
The preposition electric heater 5-4 in inner side, the rearmounted electric heater 5-5 in indoor, the second control valve 7-2 are opened.Two grades of temperature raisings of compressor side
Gain of heat subsystem flow process：The high-temperature high-pressure gas refrigerant that inverter compressor 1 is discharged is switched by four-way change-over valve 2, is entered
Outdoor heat exchanger 3-1 condensation heat releases are used for the defrosting of heat exchanger surface, subsequently become supercooling or saturation liquid refrigerant, pass through
Second check valve 4-2 enters liquid storage dryer 6, then enters main road expansion valve 10 by second controller 7-2, and throttling is changed into low
After the gas-liquid two-phase cold-producing medium of warm low pressure, side heat exchanger 5-1 heat absorption evaporations are got in by the 3rd check valve 4-3 and is changed into overheated
Or saturation gaseous refrigerant, then gas-liquid separator 11 is switched into by four-way change-over valve 2, subsequently into inverter compressor 1
Air entry enter subsequent cycle.The one-level temperature raising gain of heat subsystem flow process of refrigerating plant indoor heat exchanger：It is empty by indoor
Gas is adjusted grid 5-3, is got in after the preposition electric heater 5-4 absorptions heat intensification in side by electric room, gets in side
Heat exchanger 5-1 release thermal temperature reduce, then again by the rearmounted electric heater 5-5 in indoor reuptake heat intensification after,
Adjustable speed fan 5-2 sends into interior in Jing rooms, meets the comfortableness of indoor human body.
（3）Inverted running rapid frost melting+tonifying Qi+interior is without creeping chill mode of operation
Outside rapid frost melting+interior is illustrated in figure 4 without creeping chill mode of operation flow chart.When winter outdoor heat exchanger frosting
When very serious, this mode of operation can be adopted.Outdoor adjustable speed fan 3-2, outdoor motorized adjustment grid 3-3, the preposition electricity in outside
Heater 3-4, the second control valve 7-2 are closed, and indoor adjustable speed fan 5-2, electric room adjust grid 5-3, the preposition electricity in indoor
Heater 5-4, the rearmounted electric heater 5-5 in indoor, the first control valve 7-1, the 3rd control valve 7-3 are opened.Two grades of compressor side
Temperature raising gain of heat subsystem flow process：The high-temperature high-pressure gas refrigerant that inverter compressor 1 is discharged is switched by four-way change-over valve 2,
Condensing heat release into outdoor heat exchanger 3-1 is used for the defrosting of heat exchanger surface, subsequently becomes supercooling or saturation liquid refrigerant,
It is two-way to enter 6 points of liquid storage dryer by the second check valve 4-2, and all the way cold-producing medium enters economical by the 3rd control valve 7-3
Device 9 is released after heat supercooling, is entered back into the throttling of main road expansion valve 10 and is changed into after the gas-liquid two-phase cold-producing medium of low-temp low-pressure, by the
Three check valve 4-3 get in side heat exchanger 5-1 heat absorption evaporations and are changed into overheated or saturation gaseous refrigerant, then are commutated by four-way
Valve 2 switches into gas-liquid separator 11, and subsequently into the air entry of inverter compressor 1 subsequent cycle is entered；Another road refrigeration
Agent is changed into after the gas-liquid two-phase cold-producing medium of low-temp low-pressure by the first control valve 7-1 into the throttling of bypass expansion valve 6, enters back into Jing
Ji device 7 absorbs heat and is changed into saturation or overheated gas refrigerant, and the check valve 4-5 of Jing the 5th enter the mixed of inverter compressor 1
Gas port enters subsequent cycle.The one-level temperature raising gain of heat subsystem flow process of refrigerating plant indoor heat exchanger：Led to by indoor air
Cross electric room to adjust grid 5-3, get in after the preposition electric heater 5-4 absorptions heat intensification in side, get in side heat exchange
Device 5-1 release thermal temperature reduce, then again by the rearmounted electric heater 5-5 in indoor reuptake heat intensification after, Jing rooms
Interior adjustable speed fan 5-2 sends into interior, meets the comfortableness of indoor human body.
Claims (7)
1. a kind of refrigerating plant three-level combined type rapid frost melting system, it is characterised in that：The system is changed by refrigerating plant indoor
The one-level temperature raising gain of heat subsystem of hot device, two grades of temperature raising gain of heat subsystems, refrigerating plant outsides of refrigerating plant compressor are changed
The three-level temperature raising gain of heat subsystem of hot device is combined；The one-level temperature raising gain of heat subsystem of refrigerating plant indoor heat exchanger
By indoor heat exchanger（5-1）, indoor adjustable speed fan（5-2）, electric room adjust grid（5-3）, the preposition electrical heating in indoor
Device（5-4）, the rearmounted electric heater in indoor（5-5）And corresponding connecting pipe and valve composition；The refrigerating plant compressor
Two grades of temperature raising gain of heat subsystems by inverter compressor（1）, four-way change-over valve（2）, outdoor heat exchanger（3-1）, it is first single
To valve（4-1）, the second check valve（4-2）, the 3rd check valve（4-3）, the 4th check valve（4-4）, the 5th check valve（4-5）, room
Inner side heat exchanger（5-1）, liquid storage dryer（6）, first control valve（7-1）, second control valve（7-2）, the 3rd control valve（7-
3）, bypass expansion valve（8）, economizer（9）, main road expansion valve（10）, gas-liquid separator（11）And pipeline composition；The refrigeration
The three-level temperature raising gain of heat subsystem of device outdoor heat exchanger is by outdoor heat exchanger（3-1）, outdoor adjustable speed fan（3-2）, room
Outer motorized adjustment grid（3-3）, the preposition electric heater in outside（3-4）And the composition such as connecting pipe and valve；It is wherein described
Inverter compressor（1）Exhaust outlet passes through four-way change-over valve（2）And corresponding connecting line respectively with outdoor heat exchanger（3-
1）, indoor heat exchanger（5-1）, gas-liquid separator（11）The corresponding interface connects；The gas-liquid separator（11）Outlet is accessed and become
Frequency formula compressor（1）Air entry；The outdoor heat exchanger（3-1）Another interface and the first check valve（4-1）Outlet and the
Two check valves（4-2）Entrance is connected, the second check valve（4-2）Outlet and liquid storage dryer（6）With the 4th check valve（4-4）Go out
Mouth is connected, liquid storage dryer（6）Outlet controls valve with first respectively（7-1）Entrance, second control valve（7-2）Entrance,
3rd control valve（7-3）Entrance be connected, first control valve（7-1）Outlet and bypass expansion valve（8）Entrance be connected,
Bypass expansion valve（8）Outlet and economizer（9）Second entrance be connected, economizer（9）First entrance with the 3rd control
Valve（7-3）Outlet be connected, economizer（9）First outlet respectively with second control valve（7-2）Outlet, main road expansion valve
（10）Entrance be connected, economizer（9）Second outlet pass through the 5th check valve（4-5）With inverter compressor（1）It is mixed
Gas port connects, main road expansion valve（10）Outlet connect the first check valve（4-1）Entrance and the 3rd check valve（4-3）Entrance, the 3rd
Check valve（4-3）Outlet and the 4th check valve（4-4）Entrance and indoor heat exchanger（5-1）Another interface is connected.
2. refrigerating plant three-level combined type rapid frost melting system according to claim 1, it is characterised in that：Described outdoor
Adjustable speed fan（3-2）With indoor adjustable speed fan（5-2）For any one in frequency conversion fan or gear shift blower fan.
3. refrigerating plant three-level combined type rapid frost melting system according to claim 1, it is characterised in that：Described outdoor
The preposition electric heater in side（3-4）, the preposition electric heater in indoor（5-4）, the rearmounted electric heater in indoor（5-5）Add for PTC electricity
Any one in hot device, electromagnetic heater, ceramic fiber heater or heat by infrared ceramics device.
4. refrigerating plant three-level combined type rapid frost melting system according to claim 1, it is characterised in that：Described outdoor
Side heat exchanger（3-1）, indoor heat exchanger（5-1）For any one in fin-tube type, stacked or parallel flow heat exchanger.
5. refrigerating plant three-level combined type rapid frost melting system according to claim 1, it is characterised in that：Described outdoor
Side heat exchanger（3-1）, indoor heat exchanger（5-1）For multiple heat exchangers in parallel when, can be in parallel, front using up and down in parallel, left and right
Afterwards parallel connection in any one form.
6. refrigerating plant three-level combined type rapid frost melting system according to claim 1, it is characterised in that：The bypass is swollen
Swollen valve（8）With main road expansion valve（10）For any one form of capillary, heating power expansion valve, electric expansion valve；The economy
Device（9）For any one version of plate type heat exchanger, double-tube heat exchanger.
7. refrigerating plant three-level combined type rapid frost melting system according to claim 1, it is characterised in that：The control valve
（7-1）、（7-2）、（7-3）For any one version of motor-driven valve, magnetic valve, hand stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261564.6A CN106642852A (en) | 2016-12-30 | 2016-12-30 | Three-level composite type fast defrosting system for refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261564.6A CN106642852A (en) | 2016-12-30 | 2016-12-30 | Three-level composite type fast defrosting system for refrigerating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254171A (en) * | 2019-06-28 | 2019-09-20 | 中原工学院 | A kind of air conditioning system for automotive vehicles with fast cooling dehumidifying defrosting function |
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Application publication date: 20170510 |