CN206944526U - Suitable for three pressure high-efficiency air cooling source pumps of the big temperature difference - Google Patents
Suitable for three pressure high-efficiency air cooling source pumps of the big temperature difference Download PDFInfo
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- CN206944526U CN206944526U CN201720640112.2U CN201720640112U CN206944526U CN 206944526 U CN206944526 U CN 206944526U CN 201720640112 U CN201720640112 U CN 201720640112U CN 206944526 U CN206944526 U CN 206944526U
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Abstract
Technical field of air-conditioning heat pumps is the utility model is related to, particularly relates to the three pressure high-efficiency air cooling source pumps suitable for the big temperature difference.Including main road compressor, main road oil eliminator, four-way reversing valve, outdoor heat exchanger, outside blower fan, the first check valve, the second check valve, the 3rd check valve, the 4th check valve, the 5th check valve, the 6th check valve, recooler, device for drying and filtering, peephole, the first expansion valve, in calm the anger liquid/gas separator, the second expansion valve, indoor heat exchanger, low-pressure gas-liquid separator, evaporator pressure regulator, bypass compressor, bypass oil eliminator and connecting pipe；Solves the outstanding problem of summer high temperature refrigeration work pattern and winter low temperature heating mode of operation；Have the characteristics that energy-conditioning range is wider, defrosting fast energy-saving, has widened the application field of air-cooled heat pump again simultaneously.
Description
Technical field
Technical field of air-conditioning heat pumps is the utility model is related to, particularly relates to the three pressure high efficiency airs suitable for the big temperature difference
Cold and hot pump assembly.
Background technology
In face of becoming increasingly conspicuous for energy shortage and problem of environmental pollution, exploitation is energy-efficient, comfortableness is good, safe and reliable
Air-conditioning heat pump device turns into the sustainable fast-developing key of air conditioner industry.Regular air source heat pump device is using air as cold
Thermal source, it is simple in construction, it is easy to install, the energy in air can be made full use of, is that a kind of efficient, energy-conservation air-conditioning is set
It is standby.But when summer, outside air temperature was too high, the condensing pressure of heat pump apparatus of air source is too high, compressor pressure ratios are excessive, exhaust
Temperature is too high, and its refrigerating capacity and Energy Efficiency Ratio drastically decline, in some instances it may even be possible to causes the frequent protectiveness of compressor to be shut down；Equally in the winter
Season outside air temperature it is too low when, the evaporating temperature of heat pump apparatus of air source is too low, evaporator surface frosting is serious, compressor pressure ratios
Excessive, excessive discharge temperature, its heating capacity and Energy Efficiency Ratio drastically decline, and during according to traditional reverse defrosting mode, have
The shortcomings of defrosting time is longer, effect is poor, in some instances it may even be possible to cause device to be not normally functioning.In a word, when outdoor temperature is too high
Or when too low, above-mentioned outstanding problem existing for the heat pump of regular air source, the popularization and application of air source heat pump are had a strong impact on.
For insufficient existing for regular air source heat pump device, currently used solution has three kinds：One kind is using biography
The electrical auxiliary heater mode of system, but it is less efficient, and operating cost is higher, almost superseded.Other two scheme is respectively adopted
Two stages of compression formula refrigerating/heating endless form and cascade refrigeration/heating endless form, solve air source heat pump to a certain degree
The problem of compressor pressure ratios are excessive, excessive discharge temperature when worst hot case freezes or worst cold case heats, improves unit system
Cold energy power or heating capacity and Energy Efficiency Ratio, but there is also following problem in the two schemes：It is refrigerant flow direction first
Summer in winter can not typically switch, and can only solve refrigeration performance or single low-temperature heating mode of operation under single high-temperature refrigeration mode of operation
Lower heating performance, it is impossible to solve the systematic function under two kinds of mode of operations of summer in air source heat pump winter；Next to that two stages of compression formula is followed
Energy-conditioning range is smaller when ring and cascade cycle change with customer charge, when load reduction, system capacity regulation process
The decrement of middle energy expenditure is smaller, and systematic energy efficiency ratio declines substantially；It is finally the circulation of two stages of compression formula and cascade cycle
Evaporator surface when there is serious frosting, how efficient defrosting is into a urgent problem to be solved.
The content of the invention
The utility model provides the three pressure high-efficiency air cooling source pumps suitable for the big temperature difference, to solve existing air-source
Heat pump compressor pressure ratios in worst hot case refrigeration and worst cold case heating are excessive, excessive discharge temperature, cooling system amount/system
Heat and Energy Efficiency Ratio such as drastically decline at the prominent technical problem.
In order to solve the above technical problems, the utility model uses following technical scheme：
Suitable for three pressure high-efficiency air cooling source pumps of the big temperature difference, including main road compressor, main road oil eliminator, four-way
Reversal valve, outdoor heat exchanger, outside blower fan, the first check valve, the second check valve, the 3rd check valve, the 4th check valve,
Five check valves, the 6th check valve, recooler, device for drying and filtering, peephole, the first expansion valve, in calm the anger liquid/gas separator, second swollen
Swollen valve, indoor heat exchanger, low-pressure gas-liquid separator, evaporator pressure regulator, bypass compressor, bypass oil eliminator and company
Adapter road；The exhaust outlet of the main road compressor is connected by main road oil eliminator with the import of the 5th check valve, and the 5th is single
The outlet of outlet and the 6th check valve to valve is connected after being converged by pipeline with four-way reversing valve, and four-way reversing valve passes through connection
Interface of the pipeline respectively with outdoor heat exchanger, indoor heat exchanger, low-pressure gas-liquid separator is connected, low-pressure gas-liquid separator
Another interface be connected with the air entry of main road compressor, the import of another interface and the first check valve of outdoor heat exchanger
Outlet with the second check valve is connected, after outlet and the outlet of the 4th check valve of the first check valve converge, then with recooler
Main road import be connected, the outlet of the main road of recooler calmed the anger with liquid/gas separator import be connected, connection therebetween
Device for drying and filtering, peephole and the first expansion valve are sequentially provided with pipeline；Two outlet difference of medium pressure gas-liquid separator
The import of bypass import, the second expansion valve with recooler is connected；The outlet of second expansion valve and the second check valve
Import and the import of the 3rd check valve are connected, the connecting pipe between three forms a T font three-way pipeline, and the 3rd is unidirectional
The outlet of valve and the import of the 4th check valve are converged by connecting pipe to be connected with another interface of indoor heat exchanger afterwards；Institute
The bypass outlet for stating recooler is connected by the air entry after evaporator pressure regulator with bypass compressor, bypass compressor
Exhaust outlet after bypass oil eliminator with the import of the 6th check valve by being connected；Pass through connecting pipe phase between each part
Even.
Main road compressor and bypass compressor described in the utility model are to determine frequency scroll compressor, determine frequency rolling-rotor
Any one form in formula compressor, inverter scroll compressor, frequency conversion rolling rotor compressor.Described indoor is changed
Hot device is any one structure type in air-cooled heat exchanger, water-cooled heat exchanger.Described outdoor heat exchanger is fin
Any one structure type in pipe heat exchanger, stacked heat exchanger, parallel flow heat exchanger.Described outside blower fan is
Frequency conversion fan, determine any one form in frequency blower fan, gear shift blower fan.Described the first expansion valve and the second expansion valve is manual
Any one throttle mechanism shape in expansion valve, choke type expansion valve, float-ball type expansion valve, heating power expansion valve, electric expansion valve
Formula.Described evaporator pressure regulator is one kind by upstream pressure（That is evaporating pressure）Proportional controller, the proportional integration of control
Any one adjuster form in adjuster, proportion differential adjuster, proportional integral derivative controller.The recooler is plate
Any one structure type in formula heat exchanger, double-tube heat exchanger, flash evaporation.
The beneficial effects of the utility model are as follows：
The utility model provides a kind of three pressure high-efficiency air cooling source pumps suitable for the big temperature difference, and its is novel, machine
Group design optimization is ingenious, has following major advantage：
（1）By the ingenious switching combining of a four-way reversing valve and six check valves, the Air-Cooled Heat Pump Unit can solve
Certainly condensing pressure is too high under summer high temperature refrigeration work pattern, compressor pressure ratios are excessive, excessive discharge temperature, refrigerating capacity and
The outstanding problem that Energy Efficiency Ratio drastically declines, and can solve under winter low temperature heating mode of operation that evaporating temperature is too low, evaporator table
The outstanding problem that face frosting is serious, compressor pressure ratios are excessive, excessive discharge temperature, heating capacity and Energy Efficiency Ratio drastically decline,
The application field of air-cooled heat pump is widened.
（2）By the auxiliary adjustment of bypass compressor and evaporator pressure regulator, the refrigerating capacity of the Air-Cooled Heat Pump Unit or
Heating capacity can change rapidly with the change of customer charge, and energy-conditioning range is wider, while can also realize efficiently fast
Fast defrosting, improve air-cooled heat pump whole year reliability of operation, stability and economy.
A kind of three pressure high-efficiency air cooling source pumps suitable for the big temperature difference of the present utility model can be widely applied to the people
With all places that can use air source heat pump such as building, public building, villa buildings.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
Fig. 2 is single stage compress refrigeration work model process figure.
Fig. 3 is three pressure refrigerant mode of operation flow charts.
Fig. 4 is that single stage compress heats mode of operation flow chart.
Fig. 5 is that three pressure heat mode of operation flow chart.
Fig. 6 is interior without creeping chill rapid frost melting mode of operation flow chart.
Fig. 7 is three pressure rapid frost melting mode of operation flow charts.
Sequence number in figure：1 it is main road compressor, 2 be main road oil eliminator, 3 is that four-way reversing valve, 4-1 are outside heat exchange
Device, 4-2 are that outside blower fan, 5-1 are that the first check valve, 5-2 are that the second check valve, 5-3 are that the 3rd check valve, 5-4 are the 4th
Check valve, 5-5 are that the 5th check valve, 5-6 are the 6th check valves, 6 are recoolers, 7 are devices for drying and filtering, 8 are peepholes, 9 are
First expansion valve, 10 calmed the anger in being liquid/gas separator, 11 be the second expansion valve, 12 be indoor heat exchanger, 13 be low-pressure gas-liquid point
It is evaporator pressure regulator from device, 14,15 be bypass compressor, 16 is bypass oil eliminator.
Embodiment
The utility model once will in conjunction with the embodiments（Accompanying drawing）It is described further, but is not intended to limit the utility model.
Embodiment 1
As shown in figure 1, the utility model provides a kind of three pressure high-efficiency air cooling source pumps suitable for the big temperature difference, it is special
Sign is：The device is by main road compressor 1, main road oil eliminator 2, four-way reversing valve 3, outdoor heat exchanger 4-1, outdoor crosswind
Machine 4-2, the first check valve 5-1, the second check valve 5-2, the 3rd check valve 5-3, the 4th check valve 5-4, the 5th check valve 5-5,
6th check valve 5-6, recooler 6, device for drying and filtering 7, peephole 8, the first expansion valve 9, in liquid/gas separator 10, second of calming the anger it is swollen
Swollen valve 11, indoor heat exchanger 12, low-pressure gas-liquid separator 13, evaporator pressure regulator 14, bypass compressor 15, bypass oil
Formed from device 16 and connecting pipe.The exhaust outlet of wherein described main road compressor 1 is unidirectional by main road oil eliminator 2 and the 5th
Valve 5-5 import is connected, and the 5th check valve 5-5 outlet is connected with the 6th check valve 5-6 outlet, and the two is mixed
Gas outlet by four-way reversing valve 3 and corresponding connecting line respectively with outdoor heat exchanger 4-1, indoor heat exchanger 12, low
The corresponding interface of liquid/gas separator 13 of calming the anger is connected；Another interface of the low-pressure gas-liquid separator 13 and the suction of main road compressor 1
Gas port is connected；Another interface of the outdoor heat exchanger 4-1 and the first check valve 5-1 import and the second check valve 5-2
Outlet be connected, the first check valve 5-1 outlet is connected with the 4th check valve 5-4 outlet and the main road import of recooler 6
Connect, the outlet of the main road of recooler 6 is calmed the anger the entering of liquid/gas separator 10 by device for drying and filtering 7, peephole 8, the first expansion valve 9 with
Mouth is connected；Two of medium pressure gas-liquid separator 10 outlets the bypass import with recooler 6, the second expansion valve 11 respectively
Import is connected；Outlet and the second check valve 5-2 import and the 3rd check valve 5-3 import phase of second expansion valve 11
Connection, the 3rd check valve 5-3 outlet and the 4th check valve 5-4 import are connected with another interface of indoor heat exchanger 12
Connect；The bypass outlet of the recooler 6 is connected by evaporator pressure regulator 14 with the air entry of bypass compressor 15, bypass
The exhaust outlet of compressor 15 is connected by bypass oil eliminator 16 with the 6th check valve 5-6 import.
Main road compressor 1 and bypass compressor 15 described in the utility model are to determine frequency scroll compressor；Described room
Inner side heat exchanger 12 is air-cooled heat exchanger；Described outdoor heat exchanger 4-1 is fin-tube heat exchanger；Described outside
Blower fan 4-2 is frequency conversion fan, determines any one form in frequency blower fan, gear shift blower fan.The first described expansion valve 9 and second is swollen
Swollen valve 11 is any one in hand expansion valve, choke type expansion valve, float-ball type expansion valve, heating power expansion valve, electric expansion valve
Kind throttle mechanism form.Described evaporator pressure regulator 14 is one kind by upstream pressure（That is evaporating pressure）The ratio of control is adjusted
Save any one adjuster form in device, proportional and integral controller, proportion differential adjuster, proportional integral derivative controller.
The recooler 6 is any one structure type in plate type heat exchanger, double-tube heat exchanger, flash evaporation.Other structures are with implementing
Example 1 is identical.
Embodiment 2
To determine frequency scroll compressor, bypass compressor 15 rolls main road compressor 1 described in the utility model for fixed frequency
Rotor-type compressor；Described indoor heat exchanger 12 is air-cooled heat exchanger；Described outdoor heat exchanger 4-1 is finned tube
Formula heat exchanger；Described outside blower fan 4-2 is frequency conversion fan；The first described expansion valve 9 is hand expansion valve, and second expands
Valve 11 is choke type expansion valve；Described evaporator pressure regulator 14 is one kind by upstream pressure（That is evaporating pressure）The ratio of control
Example adjuster；The recooler 6 is plate type heat exchanger.Other structures are same as Example 1.
Embodiment 3
For main road compressor 1 described in the utility model to determine frequency rolling rotor compressor, bypass compressor 15 is fixed frequency
Scroll compressor；Described indoor heat exchanger 12 is air-cooled heat exchanger；Described outdoor heat exchanger 4-1 is stacked
Heat exchanger；Described outside blower fan 4-2 is frequency conversion fan；The first described expansion valve 9 is float-ball type expansion valve, and second expands
Valve 11 is choke type expansion valve；Described evaporator pressure regulator 14 is one kind by upstream pressure（That is evaporating pressure）The ratio of control
Example integral controller；The recooler 6 is double-tube heat exchanger.Other structures are same as Example 1.
Embodiment 4
Main road compressor 1 and bypass compressor 15 described in the utility model are inverter scroll compressor；Described room
Inner side heat exchanger 12 is water-cooled heat exchanger；Described outdoor heat exchanger 4-1 is stacked heat exchanger；Described outdoor crosswind
Machine 4-2 is gear shift blower fan；The first described expansion valve 9 is heating power expansion valve, and the second expansion valve 11 is electric expansion valve；Described
Evaporator pressure regulator 14 is one kind by upstream pressure（That is evaporating pressure）The proportion differential adjuster of control；The recooler 6
For plate type heat exchanger.Other structures are same as Example 1.
Embodiment 5
Main road compressor 1 described in the utility model is inverter scroll compressor, and bypass compressor 15 rolls for frequency conversion
Rotor-type compressor；Described indoor heat exchanger 12 is air-cooled heat exchanger；Described outdoor heat exchanger 4-1 is stacked
Heat exchanger；Described outside blower fan 4-2 is frequency conversion fan；The first described expansion valve 9 is hand expansion valve, the second expansion valve
11 be float-ball type expansion valve；Described evaporator pressure regulator 14 is one kind by upstream pressure（That is evaporating pressure）The ratio of control
Differential regulator；The recooler 6 is flash evaporation.Other structures are same as Example 1.
Embodiment 6
Main road compressor 1 described in the utility model is frequency conversion rolling rotor compressor, and bypass compressor 15 is fixed frequency
Rolling rotor compressor；Described indoor heat exchanger 12 is air-cooled heat exchanger；Described outdoor heat exchanger 4-1 is wing
Flat-tube type heat-exchanger；Described outside blower fan 4-2 is frequency conversion fan；The first described expansion valve 9 is hand expansion valve, second
Expansion valve 11 is heating power expansion valve；Described evaporator pressure regulator 14 is one kind by upstream pressure（That is evaporating pressure）Control
In proportional integral derivative controller；The recooler 6 is double-tube heat exchanger.Other structures are same as Example 1.
The utility model passes through the ingenious switching combining of a four-way reversing valve and six check valves, and bypass compressor
With the auxiliary optimizing regulation of evaporator pressure regulator, the Air-Cooled Heat Pump Unit can realize six kinds of mode of operations：
（1）Single stage compress refrigeration work pattern
Fig. 2 is single stage compress refrigeration work model process figure, when outdoor air summer temperature be approximately at 30 DEG C ~ 45 DEG C it
Between when, this mode of operation can be used.Now main road compressor 1, outside blower fan 4-2, indoor heat exchanger 12 Matching installation
Pump or fan starts, and bypass compressor 15 is closed.The workflow of system：The high pressure gaseous system that main road compressor 1 is discharged
Cryogen passes sequentially through main road oil eliminator 2, the 5th check valve 5-5 enters the exhaust gas intake port of four-way reversing valve 3, through four-way reversing valve
After 3 switchings, into the outdoor air that is introduced through outside blower fan 4-2 of outdoor heat exchanger 4-1 release heats, it was condensed into
Cold or saturated liquid refrigerant, then pass sequentially through the first check valve 5-1, recooler 6, device for drying and filtering 7, peephole 8 and enter
First expansion valve 9, it is changed into the gas-liquid two-phase cold-producing medium of medium temperature and medium pressure after the flow restriction control of the first expansion valve 9, is pressed in
Gas-liquid separator 10 carries out gas-liquid separation, then in the calm the anger liquid refrigerant of the bottom of liquid/gas separator 10 pass through the second expansion valve again
It is changed into the gas-liquid two-phase cold-producing medium of low-temp low-pressure after 11 flow restriction control, side heat exchanger is got in by the 3rd check valve 5-3
12 absorb the refrigerating medium heat that pump or fan introduces, and evaporation is changed into the superheated refrigerant steam of low pressure, then through four-way reversing valve 3
Switching after, carry out gas-liquid separation into low-pressure gas-liquid separator 13, low-pressure gaseous refrigerant after separation enters main road compression
The air entry of machine 1, after the compression of main road compressor 1, high temperature and high pressure gaseous refrigerant is discharged, initially enters subsequent cycle.
（2）Three pressure refrigerant mode of operations
Fig. 3 is three pressure refrigerant mode of operation flow charts, when outdoor air summer temperature is approximately between 46 DEG C ~ 55 DEG C
When, this mode of operation can be used.Now main road compressor 1, bypass compressor 15, outside blower fan 4-2, indoor heat exchanger 12
The pump or fan of Matching installation starts.The workflow of system：Main road compressor 1 discharge high temperature and high pressure gaseous refrigerant according to
It is secondary by main road oil eliminator 2, the 5th check valve 5-5, with being mixed by the 6th check valve 5-6 high temperature and high pressure gaseous refrigerant
Close, subsequently into the exhaust gas intake port of four-way reversing valve 3, after the switching of four-way reversing valve 3, discharged into outdoor heat exchanger 4-1
The outdoor air that heat introduces through outside blower fan 4-2, supercooling or saturated liquid refrigerant are condensed into, then passes through first
Check valve 5-1 enters the saturation gaseous state system of main road side release middle pressure medium temperature of the heat through the bypass side of recooler 6 of recooler 6
Cryogen, further supercooling are changed into the larger liquid refrigerant of degree of supercooling, then pass sequentially through device for drying and filtering 7, peephole 8 enters the
One expansion valve 9, it is changed into the gas-liquid two-phase cold-producing medium of medium temperature and medium pressure after the flow restriction control of the first expansion valve 9, is calmed the anger in
Liquid/gas separator 10 is divided into two-way after carrying out gas-liquid separation, wherein be all the way the saturated liquid refrigerant for the middle pressure medium temperature isolated,
Calmed the anger in the discharge of the bottom of liquid/gas separator 10, be then changed into the gas of low-temp low-pressure after the flow restriction control of the second expansion valve 11 again
Liquid two phase refrigerant, the refrigerating medium heat of the absorption pump or fan introducing of side heat exchanger 12 is got in by the 3rd check valve 5-3,
Evaporation is changed into the superheated refrigerant steam of low pressure, then after the switching of four-way reversing valve 3, enters into low-pressure gas-liquid separator 13
Row gas-liquid separation, the low-pressure gaseous refrigerant after separation enters the air entry of main road compressor 1, by the pressure of main road compressor 1
After contracting, high temperature and high pressure gaseous refrigerant is discharged, initially enters subsequent cycle；Another way is the saturated air for the middle pressure medium temperature isolated
State refrigerant, the top of liquid/gas separator 10 discharge of being calmed the anger in, absorbs through the main road side of recooler 6 into the bypass side of recooler 6
Supercooling or saturated liquid refrigerant heat, press through the gaseous refrigerant of heat in being changed into, then are throttled by evaporator pressure regulator 14
Pressure regulation is changed into the gas refrigerant of low area overheat, subsequently into the air entry of bypass compressor 15, finally by bypass compressor
15 compression discharge high temperature and high pressure gaseous refrigerants, then bypass oil eliminator 16, the 6th check valve 5-6 are passed sequentially through, initially enter
Subsequent cycle.
（3）Single stage compress heats mode of operation
Fig. 4 be single stage compress heat mode of operation flow chart, when winter outside air temperature be approximately at -5 DEG C ~ 15 DEG C it
Between when, this mode of operation can be used.Now main road compressor 1, outside blower fan 4-2, indoor heat exchanger 12 Matching installation
Pump or fan starts, and bypass compressor 15 is closed.The workflow of system：The high pressure gaseous system that main road compressor 1 is discharged
Cryogen enters the exhaust gas intake port of four-way reversing valve 3 by main road oil eliminator 2, the 5th check valve 5-5, is cut through four-way reversing valve 3
After changing, get in side heat exchanger 12 and discharge the refrigerating medium that heat introduces through pump or fan, be condensed into supercooling or saturated solution
State refrigerant, then pass sequentially through the 4th check valve 5-4, recooler 6, device for drying and filtering 7, peephole 8 and enter the first expansion valve
9, it is changed into the gas-liquid two-phase cold-producing medium of medium temperature and medium pressure, liquid/gas separator of being calmed the anger in after the flow restriction control of the first expansion valve 9
10 carry out gas-liquid separations, then in calm the anger the bottom of liquid/gas separator 10 liquid refrigerant again by the second expansion valve 11 throttling adjust
It is changed into the gas-liquid two-phase cold-producing medium of low-temp low-pressure after section, entering outdoor heat exchanger 4-1 by the second check valve 5-2 absorbs through room
The outdoor air heat that outside blower fan 4-2 is introduced, evaporation is changed into the superheated refrigerant steam of low pressure, then through four-way reversing valve 3
Switching after, carry out gas-liquid separation into low-pressure gas-liquid separator 13, low-pressure gaseous refrigerant after separation enters main road compression
The air entry of machine 1, after the compression of main road compressor 1, high temperature and high pressure gaseous refrigerant is discharged, initially enters subsequent cycle.
（4）Three pressure heat mode of operation
Fig. 5 be three pressure heat mode of operation flow chart, when winter outside air temperature be approximately at -20 DEG C ~ -6 DEG C it
Between when, this mode of operation can be used.Now main road compressor 1, bypass compressor 15, outside blower fan 4-2, indoor heat exchanger
The pump or fan of 12 Matching installations starts.The workflow of system：The high temperature and high pressure gaseous refrigerant that main road compressor 1 is discharged
Main road oil eliminator 2, the 5th check valve 5-5 are passed sequentially through, with being mixed by the 6th check valve 5-6 high temperature and high pressure gaseous refrigerant
Close, subsequently into the exhaust gas intake port of four-way reversing valve 3, after the switching of four-way reversing valve 3, get in side heat exchanger 12 and discharge heat
The refrigerating medium that amount heating introduces through pump or fan, is condensed into supercooling or saturated liquid refrigerant, then passes through the 4th check valve 5-4
The saturation gaseous refrigerant of middle pressure medium temperature of the heat through the bypass side of recooler 6 is discharged into the main road side of recooler 6, enters one
Step supercooling is changed into the larger liquid refrigerant of degree of supercooling, then passes sequentially through device for drying and filtering 7, the first expansion valve of entrance of peephole 8
9, it is changed into the gas-liquid two-phase cold-producing medium of medium temperature and medium pressure, liquid/gas separator of being calmed the anger in after the flow restriction control of the first expansion valve 9
It is divided into two-way after 10 progress gas-liquid separations, wherein being all the way the saturated liquid refrigerant for the middle pressure medium temperature isolated, is calmed the anger in
The bottom of liquid/gas separator 10 is discharged, and is then changed into the gas-liquid two-phase system of low-temp low-pressure after the flow restriction control of the second expansion valve 11 again
Cryogen, outdoor heat exchanger 4-1 is entered by the second check valve 5-2 and absorbs the outdoor air introduced through outside blower fan 4-2 heat
Amount, evaporation is changed into the superheated refrigerant steam of low pressure, then after the switching of four-way reversing valve 3, into low-pressure gas-liquid separator
13 carry out gas-liquid separation, and the low-pressure gaseous refrigerant after separation enters the air entry of main road compressor 1, by main road compressor 1
Compression after, discharge high temperature and high pressure gaseous refrigerant, initially enter subsequent cycle；Another way is the full of the middle pressure medium temperature isolated
And gaseous refrigerant, the top of liquid/gas separator 10 discharge of being calmed the anger in, absorbed into the bypass side of recooler 6 through the main road of recooler 6
The supercooling of side or saturated liquid refrigerant heat, the gaseous refrigerant of heat is pressed through in being changed into, then by evaporator pressure regulator 14
It is changed into the gas refrigerant of low area overheat after throttling pressure regulation, subsequently into the air entry of bypass compressor 15, finally by bypass
The compression discharge high temperature and high pressure gaseous refrigerant of compressor 15, then bypass oil eliminator 16, the 6th check valve 5-6 are passed sequentially through, open
Beginning enters subsequent cycle.
（5）Interior is without creeping chill rapid frost melting mode of operation
Fig. 6 is indoor without creeping chill rapid frost melting mode of operation flow chart, when winter outside air humidity is bigger, outside
Heat exchanger 4-1 frostings than it is more serious when, this mode of operation can be used.Now bypass compressor 15 starts, main road compressor 1, room
Outside blower fan 4-2, the pump or fan of the Matching installation of indoor heat exchanger 12 are closed.The workflow of system：Bypass compressor 15
The high temperature and high pressure gaseous refrigerant of discharge passes sequentially through bypass oil eliminator 2, the 6th check valve 5-6 enters four-way reversing valve 3
Exhaust gas intake port, after the switching of four-way reversing valve 3, into the ice of outdoor heat exchanger 4-1 release heat heat exchangers outer surface
Frost, supercooling or saturated liquid refrigerant are condensed into, the main road side that recooler 6 is then entered by the first check valve 5-1 discharges heat
The saturation gaseous refrigerant of middle pressure medium temperature of the amount heating through the bypass side of recooler 6, further supercooling are changed into the larger liquid of degree of supercooling
State refrigerant, then device for drying and filtering 7, peephole 8 are passed sequentially through into the first expansion valve 9, adjusted by the throttling of the first expansion valve 9
It is changed into the gas-liquid two-phase cold-producing medium of medium temperature and medium pressure after section, liquid/gas separator 10 of being calmed the anger in carries out gas-liquid separation, in isolating
The saturation gaseous refrigerant of medium temperature is pressed, the top of liquid/gas separator 10 discharge of being calmed the anger in, is absorbed into the bypass side of recooler 6 through again
The supercooling of the main road side of cooler 6 or saturated liquid refrigerant heat, it is changed into overheating gaseous refrigerant, then by evaporator pressure regulator
14 throttling pressure regulation are changed into the gas refrigerant of low area overheat, subsequently into the air entry of bypass compressor 15, finally by bypass
The compression discharge high temperature and high pressure gaseous refrigerant of compressor 15, then bypass oil eliminator 16, the 6th check valve 5-6 are passed sequentially through, open
Beginning enters subsequent cycle.
（6）Three pressure rapid frost melting mode of operations
Fig. 7 is three pressure rapid frost melting mode of operation flow charts, when winter outside air humidity is very big, outside heat exchange
When device 4-1 frostings are very serious, this mode of operation can be used.Now main road compressor 1, bypass compressor 15 start, outside
Blower fan 4-2, the pump or fan of the Matching installation of indoor heat exchanger 12 are closed.The workflow of system：What main road compressor 1 was discharged
High temperature and high pressure gaseous refrigerant passes sequentially through main road oil eliminator 2, the 5th check valve 5-5, with the height by the 6th check valve 5-6
Warm high-pressure gaseous refrigerant mixing, subsequently into the exhaust gas intake port of four-way reversing valve 3, after the switching of four-way reversing valve 3, enter to enter the room
The frost of outside heat exchanger 4-1 release heat heat exchangers outer surface, is condensed into supercooling or saturated liquid refrigerant, Ran Houtong
The first check valve 5-1 is crossed into the saturation of main road side release middle pressure medium temperature of the heat through the bypass side of recooler 6 of recooler 6
Gaseous refrigerant, further supercooling is changed into the larger liquid refrigerant of degree of supercooling, then passes sequentially through device for drying and filtering 7, peephole 8
Into the first expansion valve 9, it is changed into the gas-liquid two-phase cold-producing medium of medium temperature and medium pressure after the flow restriction control of the first expansion valve 9, enters
In calm the anger after liquid/gas separator 10 carries out gas-liquid separation and be divided into two-way, wherein the saturated liquid system of middle pressure medium temperature to isolate all the way
Cryogen, the bottom of liquid/gas separator 10 discharge of being calmed the anger in, it is low then after the flow restriction control of the second expansion valve 11 to be changed into low temperature again
The gas-liquid two-phase cold-producing medium of pressure, refrigerating medium heat on the inside of the absorption chamber of side heat exchanger 12 is got in by the 3rd check valve 5-3, steamed
Hair is changed into the superheated refrigerant steam of low pressure, then after the switching of four-way reversing valve 3, is carried out into low-pressure gas-liquid separator 13
Gas-liquid separation, the low-pressure gaseous refrigerant after separation enters the air entry of main road compressor 1, by the compression of main road compressor 1
Afterwards, high temperature and high pressure gaseous refrigerant is discharged, initially enters subsequent cycle；Another way is the saturation gaseous state for the middle pressure medium temperature isolated
Refrigerant, the top of liquid/gas separator 10 discharge of being calmed the anger in, absorbs the mistake through the main road side of recooler 6 into the bypass side of recooler 6
Cold or saturated liquid refrigerant heat, it is changed into overheating gaseous refrigerant, then becomes after evaporator pressure regulator 14 throttles pressure regulation
For the gas refrigerant of low area overheat, subsequently into the air entry of bypass compressor 15, finally compressed by bypass compressor 15
High temperature and high pressure gaseous refrigerant is discharged, then passes sequentially through bypass oil eliminator 16, the 6th check valve 5-6, initially enters next follow
Ring.
Claims (10)
1. suitable for three pressure high-efficiency air cooling source pumps of the big temperature difference, it is characterised in that：Including main road compressor（1）, main road
Oil eliminator（2）, four-way reversing valve（3）, outdoor heat exchanger（4-1）, the first check valve（5-1）, the second check valve（5-2）、
3rd check valve（5-3）, the 4th check valve（5-4）, recooler（6）, in calm the anger liquid/gas separator（10）, the second expansion valve（11）、
Indoor heat exchanger（12）, low-pressure gas-liquid separator（13）, evaporator pressure regulator（14）, bypass compressor（15）, bypass oil
Separator（16）And connecting pipe；The main road compressor（1）Exhaust outlet pass through main road oil eliminator（2）Commutated with four-way
Valve（3）It is connected, four-way reversing valve（3）By connecting line respectively with outdoor heat exchanger（4-1）, indoor heat exchanger（12）、
Low-pressure gas-liquid separator（13）Interface be connected, low-pressure gas-liquid separator（13）Another interface and main road compressor（1）'s
Air entry is connected, outdoor heat exchanger（4-1）Another interface and the first check valve（5-1）Import and the second check valve
（5-2）Outlet be connected, the first check valve（5-1）Outlet and the 4th check valve（5-4）Outlet converge after again with it is cold again
Device（6）Main road import be connected, recooler（6）Main road outlet calmed the anger liquid/gas separator with（10）Import be connected；Institute
Calmed the anger in stating liquid/gas separator（10）Two outlet respectively with recooler（6）Bypass import, the second expansion valve（11）Import
It is connected；Second expansion valve（11）Outlet and the second check valve（5-2）Import and the 3rd check valve（5-3）Import
It is connected, the 3rd check valve（5-3）Outlet and the 4th check valve（5-4）Import by connecting pipe converge after and indoor
Heat exchanger（12）Another interface be connected；The recooler（6）Bypass outlet pass through evaporator pressure regulator（14）Afterwards with
Bypass compressor（15）Air entry be connected, bypass compressor（15）Exhaust outlet and bypass oil eliminator（16）It is connected.
2. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：Also wrap
Include outside blower fan（4-2）, the 5th check valve（5-5）, the 6th check valve（5-6）, device for drying and filtering（7）, peephole（8）,
One expansion valve（9）；The outside blower fan（4-2）It is located outside side heat exchanger（4-1）Outside, main road oil eliminator（2）Pass through
5th check valve（5-5）With four-way reversing valve（3）Connection, bypass oil eliminator（16）Pass through the 6th check valve（5-6）With four-way
Reversal valve（3）Connection；It is connected between each part by connecting pipe；Recooler（6）Calmed the anger with liquid/gas separator（10）Between
Connecting pipe on be sequentially provided with device for drying and filtering（7）, peephole（8）With the first expansion valve（9）.
3. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：It is described
Second expansion valve（11）, the second check valve（5-2）And the 3rd check valve（5-3）Between connecting pipe formed a T font
Three-way pipeline.
4. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：It is described
Main road compressor（1）With bypass compressor（15）Respectively determine frequency scroll compressor, determine frequency rolling rotor compressor, become
Any one form in frequency scroll compressor, frequency conversion rolling rotor compressor.
5. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：It is described
Indoor heat exchanger（12）For any one structure type in air-cooled heat exchanger, water-cooled heat exchanger.
6. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：It is described
Outdoor heat exchanger（4-1）For any one structure type in fin tube type, stacked, parallel flow heat exchanger.
7. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：It is described
Outside blower fan（4-2）For frequency conversion fan, determine any one form in frequency blower fan, gear shift blower fan.
8. the three pressure high-efficiency air cooling source pumps according to claim 2 suitable for the big temperature difference, it is characterised in that：It is described
The first expansion valve（9）With the second expansion valve（11）Respectively hand expansion valve, choke type expansion valve, float-ball type expansion valve, heat
Any one throttle mechanism form in power expansion valve, electric expansion valve.
9. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：It is described
Evaporator pressure regulator（14）For a kind of proportional controller, proportional and integral controller, proportion differential by upstream pressure control
Any one adjuster form in adjuster, proportional integral derivative controller.
10. the three pressure high-efficiency air cooling source pumps according to claim 1 suitable for the big temperature difference, it is characterised in that：Institute
State recooler（6）For any one structure type in plate type heat exchanger, double-tube heat exchanger, flash evaporation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640112.2U CN206944526U (en) | 2017-05-27 | 2017-05-27 | Suitable for three pressure high-efficiency air cooling source pumps of the big temperature difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640112.2U CN206944526U (en) | 2017-05-27 | 2017-05-27 | Suitable for three pressure high-efficiency air cooling source pumps of the big temperature difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206944526U true CN206944526U (en) | 2018-01-30 |
Family
ID=61362737
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720640112.2U Withdrawn - After Issue CN206944526U (en) | 2017-05-27 | 2017-05-27 | Suitable for three pressure high-efficiency air cooling source pumps of the big temperature difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206944526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024031A (en) * | 2017-05-27 | 2017-08-08 | 中原工学院 | A kind of three pressure high-efficiency air cooling source pumps suitable for the big temperature difference |
| CN110073983A (en) * | 2019-03-01 | 2019-08-02 | 青岛沃润达新能源科技有限公司 | The meat chicken cultivation humidity control system and its control method constituted based on air-heater |
-
2017
- 2017-05-27 CN CN201720640112.2U patent/CN206944526U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024031A (en) * | 2017-05-27 | 2017-08-08 | 中原工学院 | A kind of three pressure high-efficiency air cooling source pumps suitable for the big temperature difference |
| CN107024031B (en) * | 2017-05-27 | 2022-08-02 | 中原工学院 | Three-pressure high-efficiency air-cooled heat pump unit suitable for large temperature difference |
| CN110073983A (en) * | 2019-03-01 | 2019-08-02 | 青岛沃润达新能源科技有限公司 | The meat chicken cultivation humidity control system and its control method constituted based on air-heater |
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Address after: 451191 No. 1 Huaihe Road, Shuang Hu Economic and Technological Development Zone, Xinzheng, Zhengzhou, Henan Patentee after: ZHONGYUAN University OF TECHNOLOGY Address before: 451191 No. 1 Huaihe Road, Shuanghu Town Economic and Technological Development Zone, Zhengzhou City, Henan Province Patentee before: Zhongyuan University of Technology |
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