CN205593208U - Refrigeration or heat pump system , device and compressing and condensing unit - Google Patents
Refrigeration or heat pump system , device and compressing and condensing unit Download PDFInfo
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- CN205593208U CN205593208U CN201620278478.5U CN201620278478U CN205593208U CN 205593208 U CN205593208 U CN 205593208U CN 201620278478 U CN201620278478 U CN 201620278478U CN 205593208 U CN205593208 U CN 205593208U
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Abstract
The utility model provides a refrigeration or heat pump system, device and compressing and condensing unit, relates to refrigeration or heat pump field. Refrigeration or heat pump system contain two at least refrigeration or heat pump unit, and these two refrigeration or heat pump unit are unit no. 1 and unit no. 2 respectively, unit no. 1 contains compressor (group), condenser, throttling arrangement and evaporimeter, unit no. 2 contains compressor (group), condenser, subcooler, throttling arrangement and evaporimeter, an unit draw unit no. 2 has mutually independent refrigerant channel, an unit draw the unit is two through middle heat transfer device coupling, middle heat transfer device is the evaporimeter of unit no. 1 also is the subcooler of unit no. 2, heat transfer fluid in the middle of middle heat transfer device does not contain. Compare current refrigeration or heat pump system, the utility model discloses can obviously improve refrigeration or heat pump cycle's energy efficiency ratio.
Description
Technical field
This utility model relates to refrigeration or art of heat pumps, particularly relate to a kind of refrigeration or heat pump, device and
A kind of Condensing units.
Background technology
At present, China's cold chain entirety energy consumption level is higher, hence it is evident that higher than European and American developed countries.Especially middle-size and small-size cold
Hiding in freezing refrigerating plant, compressor many employings single stage compress, compression ratio is big, and uses capillary tube or expansion valve joint
Stream, restriction loss is big, causes corresponding refrigerant system efficiency relatively low.Although air injection enthalpy-increasing, multi-stage compression, superposition type system
Cooling system all has higher system effectiveness, but, otherwise associated compressors kind is less or price is higher, otherwise make accordingly
Cooling system is relatively costly, or system complex causes reliability decrease.
Summary of the invention
The purpose of this utility model is to provide a kind of refrigeration or heat pump, device and a kind of Condensing units,
There is higher systematic energy efficiency ratio.
For achieving the above object, the invention provides a kind of refrigeration or heat pump, comprise at least two refrigeration or heat
Pump unit, the two refrigeration or heat pump unit are respectively unit one and unit two；
Described unit one comprises compressor (group), condenser, throttling arrangement and vaporizer, and described unit two comprises
Compressor (group), condenser, subcooler, throttling arrangement and vaporizer；
Described unit one and described unit two have separate coolant channel, described unit one and described unit two
Being coupled by intermediate heat transfer device, described intermediate heat transfer device is the vaporizer of described unit one, is also described unit two
Subcooler；
Described intermediate heat transfer device does not comprise intermediate heat transfer fluid (such as water), the cold-producing medium of described unit one and institute
State the cold-producing medium of unit two by intermediate heat transfer device direct heat transfer.
Further, this refrigeration system, in addition to described intermediate heat transfer device, described unit one also has other to steam
Send out device, and the compressor of described unit one (group) can realize energy adjustment.
Further, this refrigeration system, for the refrigerating plant containing two or more warm areas, described
Unit one and described unit two are responsible for different warm areas, and described unit one and described unit two all only have a compressor, institute
The compressor stating unit one can regulate rotating speed or can change stroke.
Further, the compressor (group) of described unit one aims at the setting of described unit one, and described unit one aims at
In described refrigeration or heat pump other refrigeration or heat pump unit arrange, but described unit one can also be with described refrigeration or
Heat pump runs relevant electro-heat equipment (such as electrical part or compressor) and provides cooling.
Further, this refrigeration or heat pump, all refrigeration comprised or the condenser of heat pump unit have phase
The same type of cooling.
Further, this refrigeration or heat pump, only comprise two and freeze or heat pump unit, and the two list
Unit condenser share blower fan or (with) water pump.
For achieving the above object, the invention provides a kind of refrigeration or heat pump assembly, including aforesaid refrigeration or heat pump
System.
For achieving the above object, the invention provides a kind of Condensing units, including at least a refrigeration unit and
One compression condensation unit, described refrigeration unit includes compressor (group), condenser, throttling arrangement and vaporizer, institute
State compression condensation unit and include compressor (group), condenser, subcooler, described refrigeration unit and described compression condensation list
Unit is respectively arranged with separate coolant channel；
Described refrigeration unit and described compression condensation unit are coupled by intermediate heat transfer device, and described intermediate heat transfer fills
Putting is the vaporizer of described refrigeration unit, is also the subcooler of described compression condensation unit；
Described intermediate heat transfer device does not contains intermediate heat transfer fluid (such as water), described refrigeration unit and described compression
Condensing unit passes through intermediate heat transfer device direct heat transfer；
The condenser of described refrigeration unit and the condenser of described compression condensation unit have the identical type of cooling.
Further, the compressor (group) of described refrigeration unit aims at described refrigeration unit and arranges, described refrigeration
Unit aims at described compression condensation unit and arranges, but described refrigeration unit can also be to run phase with described Condensing units
The electro-heat equipment (such as electrical part or compressor) closed provides cooling.
Further, the condenser of described refrigeration unit and the condenser of described compression condensation unit share blower fan or
Person (and) pump.
Based on technique scheme, this utility model utilizes the kind of refrigeration cycle of a higher energy efficiency, to a relatively mental retardation
The kind of refrigeration cycle of effect provides supercool, thus improves the Energy Efficiency Ratio of whole refrigeration system.Especially, one can be provided specially
The individual highly effective refrigeration with compressor of air conditioner circulates, and gives and provides supercool compared with the middle deepfreeze freezing kind of refrigeration cycle of low-energy-efficiency,
Thus promote the Energy Efficiency Ratio of whole refrigeration system.Meanwhile, the refrigerating capacity that the highly effective refrigeration circulation of band compressor of air conditioner produces,
All (strictly, have least a portion of loss of refrigeration capacity in air) pass to middle deepfreeze freezing kind of refrigeration cycle, and
All it is converted into (strictly, have least a portion of loss of refrigeration capacity in air) refrigerating capacity of middle cold cycle, thus can
To greatly reduce the deployment cost of middle cryogenic system.This utility model is easily achieved, by without intermediate heat transfer fluid (ratio
Such as water, drive with water pump the most again) intermediate heat transfer device (such as double pipe, plate type heat exchanger, double-tube heat exchanger,
Case tube heat exchanger etc.), direct heat transfer between associated refrigeration or heat pump unit, efficiency is high, low cost.Owing to using mutually
Independent refrigeration or heat pump unit, so, different refrigeration or heat pump unit can use different types of compressor, profit
Lubricating oil and cold-producing medium, more flexibly, system reliability is high, and performance is the most superior.
Accompanying drawing explanation
Fig. 1 is the refrigeration system theory of constitution schematic diagram of this utility model first, second embodiment.
Fig. 2 is the refrigeration system theory of constitution schematic diagram of this utility model the 3rd embodiment.
Fig. 3 is the refrigeration system theory of constitution schematic diagram of this utility model the 4th embodiment.
Fig. 4 is the refrigeration system theory of constitution schematic diagram of this utility model the 5th embodiment.
Fig. 5 is the refrigeration system theory of constitution schematic diagram of this utility model sixth embodiment.
Fig. 6 is the refrigeration system theory of constitution schematic diagram of this utility model the 7th embodiment.
Fig. 7 is the refrigeration system theory of constitution schematic diagram of this utility model the 8th embodiment.
Fig. 8 is the Condensing units system theory of constitution schematic diagram of this utility model the 9th embodiment.
Fig. 9 is the Condensing units system theory of constitution schematic diagram of this utility model the ten, the 11st embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
As it is shown in figure 1, be the refrigeration system theory of constitution schematic diagram of this utility model first embodiment.
In the refrigeration unit one of the present embodiment, after high temperature compressed unit 11 compression and low pressure refrigerant gas in parallel,
The refrigerant gas of output High Temperature High Pressure, to condenser 12, becomes highly pressurised liquid after cold-producing medium is condensed, enter reservoir 13
, it is divided into three tunnels from reservoir 13 highly pressurised liquid out: the first via is after electromagnetic valve 111, then through heating power expansion valve 1
12 throttlings, subsequently into the primary side of plate type heat exchanger 01, by absorbing the heat of plate type heat exchanger 01 secondary side cold-producing medium
Become low-pressure gas, finally enter the air entry of high temperature compressed unit 11；Second tunnel is after electromagnetic valve 121, then passes through
Heating power expansion valve 122 throttles, and subsequently into high-temperature evaporator 123, becomes low-pressure gas, finally enter high-temperature high-pressure after heat absorption
The air entry of contracting unit 11；3rd tunnel is after electromagnetic valve 131, then throttles through heating power expansion valve 132, subsequently into height
Temperature vaporizer 133, becomes low-pressure gas, finally enters the air entry of high temperature compressed unit 11 after heat absorption.Thus complete height
Temperature kind of refrigeration cycle.
In the refrigeration unit two of the present embodiment, after middle temperature compressor bank 21 compression and low pressure refrigerant gas in parallel, defeated
Go out the refrigerant gas of High Temperature High Pressure to condenser 22, after cold-producing medium is condensed, become highly pressurised liquid, enter reservoir 23,
Subsequently into the secondary side of plate type heat exchanger 01, after the cold-producing medium absorbing and cooling temperature of plate type heat exchanger 01 primary side, produce relatively
Big degree of supercooling, is then divided into two-way: the first via is after electromagnetic valve 211, then throttles through heating power expansion valve 212, so
Rear entrance middle temperature vaporizer 213, becomes low-pressure gas after heat absorption, finally enter the air entry of middle temperature compressor bank 21；The
Two tunnels are after electromagnetic valve 221, then throttle through heating power expansion valve 222, subsequently into middle temperature vaporizer 223, after heat absorption
Become low-pressure gas, finally enter the air entry of middle temperature compressor bank 21.Thus complete middle temperature kind of refrigeration cycle.
Described refrigeration unit one circulates for high-temperature refrigeration, and system effectiveness is high, and described refrigeration unit two follows for middle temperature refrigeration
Ring, system effectiveness is low, by the coupling of plate type heat exchanger 01, increases with the refrigerating capacity that the circulation of described high-temperature refrigeration produces
The degree of supercooling of described middle temperature kind of refrigeration cycle, thus improve the operational efficiency of whole system.Simultaneously as described middle temperature system
SAPMAC method has bigger degree of supercooling, thus has been obviously improved the refrigerating capacity of described middle temperature kind of refrigeration cycle, therefore, described refrigeration
Unit and deployment cost can be substantially reduced.
As it is shown in figure 1, be the refrigeration system theory of constitution schematic diagram of this utility model the second embodiment.
The present embodiment is similar with first embodiment, and difference is: in the present embodiment, and 11 is middle temperature compressor in parallel
Group, 21 is low temperature compression unit in parallel；Meanwhile, 123 and 133 are middle temperature vaporizer, and 213 and 223 are low-temperature evaporation
Device.
As in figure 2 it is shown, be the refrigeration system theory of constitution schematic diagram of this utility model the 3rd embodiment.
In the refrigeration unit one of the present embodiment, after high temperature compressed unit 11 compression and low pressure refrigerant gas in parallel,
The refrigerant gas of output High Temperature High Pressure, to condenser 12, becomes highly pressurised liquid after cold-producing medium is condensed, enter reservoir 13
, it is divided into four tunnels from reservoir 13 highly pressurised liquid out: the first via is after electromagnetic valve 111, then through heating power expansion valve 1
12 throttlings, subsequently into the primary side of plate type heat exchanger 01, by absorbing the heat of plate type heat exchanger 01 secondary side cold-producing medium
Become low-pressure gas, finally enter the air entry of high temperature compressed unit 11；Second tunnel is after electromagnetic valve 121, then passes through
Heating power expansion valve 122 throttles, and subsequently into high-temperature evaporator 123, becomes low-pressure gas, finally enter high-temperature high-pressure after heat absorption
The air entry of contracting unit 11；3rd tunnel is after electromagnetic valve 131, then throttles through heating power expansion valve 132, subsequently into height
Temperature vaporizer 133, becomes low-pressure gas, finally enters the air entry of high temperature compressed unit 11 after heat absorption；4th tunnel is passed through
After electromagnetic valve 141, then throttle through heating power expansion valve 142, subsequently into the primary side of plate type heat exchanger 02, by absorbing
The heat of plate type heat exchanger 02 secondary side cold-producing medium becomes low-pressure gas, enters back into the air entry of high temperature compressed unit 11.By
This completes high-temperature refrigeration circulation.
In the refrigeration unit two of the present embodiment, after middle temperature compressor bank 21 compression and low pressure refrigerant gas in parallel, defeated
Go out the refrigerant gas of High Temperature High Pressure to condenser 22, after cold-producing medium is condensed, become highly pressurised liquid, enter reservoir 23,
Subsequently into the secondary side of plate type heat exchanger 01, after the cold-producing medium absorbing and cooling temperature of plate type heat exchanger 01 primary side, produce relatively
Big degree of supercooling, is then divided into three tunnels: the first via is after electromagnetic valve 211, then throttles through heating power expansion valve 212, so
Rear entrance middle temperature vaporizer 213, becomes low-pressure gas after heat absorption, finally enter the air entry of middle temperature compressor bank 21；The
Two tunnels are after electromagnetic valve 221, then throttle through heating power expansion valve 222, subsequently into middle temperature vaporizer 223, after heat absorption
Become low-pressure gas, finally enter the air entry of middle temperature compressor bank 21；3rd tunnel is after electromagnetic valve 231, then passes through
Heating power expansion valve 232 throttles, subsequently into the primary side of plate type heat exchanger 03, by absorbing plate type heat exchanger 03 secondary side
The heat of cold-producing medium becomes low-pressure gas, finally enters the air entry of middle temperature compressor bank 21.Thus complete middle temperature refrigeration to follow
Ring.
In the refrigeration unit three of the present embodiment, after low temperature compression unit 31 compression and low pressure refrigerant gas in parallel,
The refrigerant gas of output High Temperature High Pressure, to condenser 32, becomes highly pressurised liquid after cold-producing medium is condensed, enter reservoir 33
, subsequently into the secondary side of plate type heat exchanger 02, after the cold-producing medium absorbing and cooling temperature of plate type heat exchanger 02 primary side, produce
Certain degree of supercooling, then enters back into the secondary side of plate type heat exchanger 03, and the cold-producing medium of plate type heat exchanger 03 primary side is inhaled
After heat drop temperature, produce bigger degree of supercooling, be then divided into two-way: the first via is after electromagnetic valve 311, then through heating power
Expansion valve 312 throttles, and subsequently into cryogenic vaporizer 313, becomes low-pressure gas, finally enter cryogenic compressor after heat absorption
The air entry of group 31；Second tunnel is after electromagnetic valve 321, then throttles through heating power expansion valve 322, steams subsequently into low temperature
Send out device 323, become low-pressure gas after heat absorption, finally enter the air entry of low temperature compression unit 31.Thus complete low temperature system
SAPMAC method.
In the present embodiment, described refrigeration unit one circulates for high-temperature refrigeration, and system effectiveness is the highest, described refrigeration
Unit two is middle temperature kind of refrigeration cycle, and system effectiveness is higher, and described refrigeration unit three is cryogenic refrigeration circulation, and system effectiveness is
Low, by the coupling of plate type heat exchanger 01,02,03, increase institute with the refrigerating capacity that the circulation of described refrigeration unit one produces
Stating the degree of supercooling of refrigeration unit two, three circulation, the refrigerating capacity simultaneously produced with the circulation of described refrigeration unit two adds further
The degree of supercooling of big described refrigeration unit three circulation, thus it is greatly improved the operational efficiency of whole system.
As it is shown on figure 3, be the refrigeration system theory of constitution schematic diagram of this utility model the 4th embodiment.
In the refrigeration unit one of the present embodiment, after high temperature compressed unit 11 compression and low pressure refrigerant gas in parallel,
The refrigerant gas of output High Temperature High Pressure, to condenser 12, becomes highly pressurised liquid after cold-producing medium is condensed, enter reservoir 13
, it is divided into three tunnels from reservoir 13 highly pressurised liquid out: the first via is after electromagnetic valve 111, then through heating power expansion valve 1
12 throttlings, subsequently into the primary side of plate type heat exchanger 01, by absorbing the heat of plate type heat exchanger 01 secondary side cold-producing medium
Become low-pressure gas, finally enter the air entry of high temperature compressed unit 11；Second tunnel is after electromagnetic valve 121, then passes through
Heating power expansion valve 122 throttles, and subsequently into high-temperature evaporator 123, becomes low-pressure gas, finally enter high-temperature high-pressure after heat absorption
The air entry of contracting unit 11；3rd tunnel is after electromagnetic valve 141, then throttles through heating power expansion valve 142, subsequently into plate
The primary side of formula heat exchanger 02, becomes low-pressure gas, finally by absorbing the heat of plate type heat exchanger 02 secondary side cold-producing medium
Enter the air entry of high temperature compressed unit 11.Thus complete high-temperature refrigeration circulation.
In the refrigeration unit two of the present embodiment, after middle temperature compressor bank 21 compression and low pressure refrigerant gas in parallel, defeated
Go out the refrigerant gas of High Temperature High Pressure to condenser 22, after cold-producing medium is condensed, become highly pressurised liquid, enter reservoir 23,
Subsequently into the secondary side of plate type heat exchanger 01, after the cold-producing medium absorbing and cooling temperature of plate type heat exchanger 01 primary side, produce relatively
Big degree of supercooling, is then divided into three tunnels: the first via is after electromagnetic valve 211, then throttles through heating power expansion valve 212, so
Rear entrance middle temperature vaporizer 213, becomes low-pressure gas after heat absorption, finally enter the air entry of middle temperature compressor bank 21；The
Two tunnels are after electromagnetic valve 221, then throttle through heating power expansion valve 222, subsequently into middle temperature vaporizer 223, after heat absorption
Become low-pressure gas, finally enter the air entry of middle temperature compressor bank 21；3rd tunnel is after electromagnetic valve 231, then passes through
Heating power expansion valve 232 throttles, subsequently into the primary side of plate type heat exchanger 03, by absorbing plate type heat exchanger 03 secondary side
The heat of cold-producing medium becomes low-pressure gas, finally enters the air entry of middle temperature compressor bank 21.Thus complete middle temperature refrigeration to follow
Ring.
In the refrigeration unit three of the present embodiment, after low temperature compression unit 31 compression and low pressure refrigerant gas in parallel, defeated
Go out the refrigerant gas of High Temperature High Pressure to condenser 32, after cold-producing medium is condensed, become highly pressurised liquid, enter reservoir 33,
Subsequently into the secondary side of plate type heat exchanger 02, after the cold-producing medium absorbing and cooling temperature of plate type heat exchanger 02 primary side, produce one
Fixed degree of supercooling, then enters back into the secondary side of plate type heat exchanger 03, the cold-producing medium heat absorption of plate type heat exchanger 03 primary side
After cooling, produce bigger degree of supercooling, be then divided into two-way: the first via is after electromagnetic valve 311 more swollen through heating power
Swollen valve 312 throttles, and subsequently into cryogenic vaporizer 313, becomes low-pressure gas, finally enter cryogenic compressor after heat absorption
The air entry of group 31；Second tunnel is after electromagnetic valve 321, then throttles through heating power expansion valve 322, steams subsequently into low temperature
Send out device 323, become low-pressure gas after heat absorption, finally enter the air entry of low temperature compression unit 31.Thus complete low temperature system
SAPMAC method.
In the present embodiment, high-temperature evaporator 123 aims at compressor or the associated appliance absorbing whole refrigeration system
Heat that part distributes and set.Specifically, compressor or electrical part are placed in an airtight casing, described compression
The heat that machine or electrical part distribute is delivered in the air in described casing, air-cooled by arranging one in described casing
Vaporizer 123, cool down to the air in described casing, thus control the air themperature in described casing, it is simple to protection
Described compressor and electrical part.
In the present embodiment, described refrigeration unit one aim at described refrigeration unit two and described refrigeration unit three and
If meanwhile, described refrigeration unit one provides cooling also to the compressor of whole refrigeration system or electrical part.The present embodiment
The most whole refrigerant system efficiency is high, meanwhile, by plate type heat exchanger 01,02, the refrigerating capacity of described refrigeration unit one
It is delivered separately to described refrigeration unit two and described refrigeration unit three, thus adds described refrigeration unit two and described refrigeration
The refrigerating capacity of unit three, therefore, the deployment cost of described refrigeration unit two and described refrigeration unit three can be substantially reduced.
As shown in Figure 4, for the refrigeration system theory of constitution schematic diagram of this utility model the 5th embodiment.
The present embodiment and the 4th embodiment are similar to, and difference is:
1. in the present embodiment, the refrigeration unit one that high-temperature refrigeration circulation is formed, has lacked one by electromagnetic valve 121, heat
What power expansion valve 122, vaporizer 123 formed aims at whole system compressor or the refrigeration branch of electrical part cooling；
2. in the present embodiment, the refrigeration unit two that middle temperature kind of refrigeration cycle is formed, has lacked one by electromagnetic valve 231, heat
The refrigeration of the refrigeration unit Acanthopanan trifoliatus (L.) Merr. high undercooling formed to cryogenic refrigeration circulation of power expansion valve 232, plate type heat exchanger 03 composition
Branch road；
3., in the present embodiment, eliminate plate type heat exchanger 03, therefore, the refrigeration unit that cryogenic refrigeration circulation is formed
Three, only provided supercool by described refrigeration unit one by plate type heat exchanger 02.
As it is shown in figure 5, be the refrigeration system theory of constitution schematic diagram of this utility model sixth embodiment.
In the present embodiment refrigeration unit one, middle high temperature air injection enthalpy-increasing compressor 11 compression and low pressure, middle compression refrigerant
After gas, the refrigerant gas of output High Temperature High Pressure, to condenser 12, becomes highly pressurised liquid after cold-producing medium is condensed, then
It is divided into two-way: the first via throttles through heating power expansion valve 10, subsequently into the primary side of plate type heat exchanger 00, by absorbing
The heat of plate type heat exchanger 00 secondary side cold-producing medium becomes medium pressure gas, finally enters the middle pressure air entry of compressor 11；The
Two tunnels enter the secondary side of plate type heat exchanger 00, after the cold-producing medium cooling of plate type heat exchanger 00 primary side, produce bigger
Degree of supercooling, then throttle through heating power expansion valve 112, subsequently into the primary side of plate type heat exchanger 02, board-like by absorbing
The heat of heat exchanger 02 secondary side cold-producing medium becomes low-pressure gas, finally enters the low pressure air suction mouth of compressor 11.Thus shape
Become the air injection enthalpy-increasing kind of refrigeration cycle of high energy efficiency.
In the present embodiment refrigeration unit two, after cryogenic compressor 31 compression and low pressure refrigerant gas, export high temperature
The refrigerant gas of high pressure, to condenser 32, becomes highly pressurised liquid after cold-producing medium is condensed, enter reservoir 33, then enter
Enter the secondary side of plate type heat exchanger 02, after the cold-producing medium absorbing and cooling temperature of plate type heat exchanger 02 primary side, produce bigger mistake
Cold degree, is then passed through heating power expansion valve 34 and throttles, enter back into cryogenic vaporizer 35, become low-pressure gas, finally after heat absorption
Enter the air entry of cryogenic compressor 31, be consequently formed cryogenic refrigeration circulation.
In the present embodiment, by the air injection enthalpy-increasing kind of refrigeration cycle of high energy efficiency, it is greatly improved whole refrigeration system
Efficiency.Meanwhile, described refrigeration unit one aims at set by described refrigeration unit two, causes the refrigerating capacity of described refrigeration unit two
Substantially increase, therefore can greatly reduce the deployment cost of described refrigeration unit two.
As shown in Figure 6, for the refrigeration system theory of constitution schematic diagram of this utility model the 7th embodiment.
In the refrigeration unit one of the present embodiment, after compressor of air conditioner 11 compression and low pressure refrigerant gas, output height
The refrigerant gas of temperature high pressure, to condenser 12, becomes highly pressurised liquid, then saves through capillary tube 112 after cold-producing medium is condensed
Stream, subsequently into the primary side of plate type heat exchanger 01, becomes by absorbing the heat of plate type heat exchanger 01 secondary side cold-producing medium
Low-pressure gas, finally enters the air entry of compressor of air conditioner 11, is consequently formed high-temperature refrigeration circulation.
In the refrigeration unit two of the present embodiment, after middle temperature compressor 21 compression and low pressure refrigerant gas, output height
The refrigerant gas of temperature high pressure, to condenser 22, becomes highly pressurised liquid after cold-producing medium is condensed, enter reservoir 23, then
Enter the secondary side of plate type heat exchanger 01, after the cold-producing medium absorbing and cooling temperature of plate type heat exchanger 01 primary side, produce bigger
Degree of supercooling, is then passed through heating power expansion valve 24 and throttles, and enters back into middle temperature vaporizer 25, becomes low-pressure gas after heat absorption,
The air entry of rear entrance middle temperature compressor 21, is consequently formed middle temperature kind of refrigeration cycle.
In the present embodiment, circulated by the high-temperature refrigeration of described refrigeration unit one, improve the system of whole refrigeration system
Cold efficiency.Meanwhile, described refrigeration unit one aims at set by described refrigeration unit two, causes the refrigeration of described refrigeration unit two
Amount substantially increases, and therefore can reduce the deployment cost of described refrigeration unit two.For small refrigerator, generally use wind
Cold, now, refrigeration unit one and refrigeration unit two can also share condensation fan, cost-effective, the apparatus structure made
Compact.
As it is shown in fig. 7, be the refrigeration system theory of constitution schematic diagram of this utility model the 8th embodiment.
The present embodiment is used for the refrigerator with two compressors or refrigerator.
In the present embodiment refrigeration unit one, after middle temperature frequency-changeable compressor 21 compression and low pressure refrigerant gas, output height
The refrigerant gas of temperature high pressure, to condenser 22, becomes highly pressurised liquid after cold-producing medium is condensed, is then divided into two-way: first
Road first passes through electromagnetic valve 211, then throttles through capillary tube 212, subsequently into the inner side of double pipe 03, double by absorbing
Outside pipe 03, the heat of cold-producing medium becomes low-pressure gas, finally enters the air entry of middle temperature frequency-changeable compressor 21；Second road is first
Through electromagnetic valve 221, then after capillary tube 222 throttles, enter refrigerator evaporator 223, absorb the heat of cold room
After, become low-pressure gas, finally enter the air entry of compressor 21.Thus complete middle temperature kind of refrigeration cycle.
In the present embodiment refrigeration unit two, after cryogenic compressor 31 compression and low pressure refrigerant gas, output high temperature is high
Pressure refrigerant gas to condenser 32, become highly pressurised liquid after cold-producing medium is condensed, subsequently into double pipe 03 outside
Side, after the cold-producing medium absorbing and cooling temperature inside double pipe 03, produces bigger degree of supercooling, is then passed through capillary tube 34 and saves
Stream, enters back into freezer evaporator 35, becomes low-pressure gas after heat absorption, finally enter the air entry of cryogenic compressor 31,
It is consequently formed cryogenic refrigeration circulation.
The present embodiment, by described middle temperature kind of refrigeration cycle, provides supercool to cryogenic refrigeration circulation, thus improves whole
Individual refrigerator or the efficiency of refrigeration system of refrigerator, can make refrigerator or refrigerator more energy-conservation.Meanwhile, described cold cycle because
There is higher degree of supercooling to cause cold cycle refrigerating capacity substantially to increase, therefore can reduce the deployment cost of refrigeration unit two.
As shown in Figure 8, for the theory of constitution schematic diagram of ninth embodiment of the invention Condensing units.
In the unit one of the present embodiment, middle temperature parallel compressor unit 21 air vent connects the import of condenser 22,
The outlet of condenser 22 connects the import of reservoir 23, and the outlet of reservoir 23 connects liquid feeding pipeline 201, the most also with electricity
The import of magnet valve 231 is connected, and the outlet of electromagnetic valve 231 connects the import of heating power expansion valve 232, going out of heating power expansion valve 232
The import of mouth connecting plate type heat exchanger 03 primary side, the outlet of plate type heat exchanger 03 primary side connects middle temperature parallel connection compressor
The air entry of group 21, also communicates with suction line 202 simultaneously.
In the unit two of the present embodiment, low temperature parallel compressor unit 31 air vent connects the import of condenser 32, cold
The outlet of condenser 32 connects the import of reservoir 33, the import of outlet connecting plate type heat exchanger 03 secondary side of reservoir 33,
The outlet of plate type heat exchanger 03 secondary side connects liquid feeding pipeline 301, and suction line 302 connects low temperature parallel compressor unit 31
Air entry.
The Condensing units of the present embodiment, liquid feeding pipeline 201 and suction line 202 are in order to connect the joint of middle temperature refrigeration
Stream device and vaporizer, liquid feeding pipeline 301 and suction line 302 are in order to connect throttling arrangement and the vaporizer of cryogenic refrigeration.
Unit one provides highly pressurised liquid supercool required cold to unit two by plate type heat exchanger 03, thus improves
The efficiency of whole device, simultaneously as the refrigerating capacity of unit two substantially increases, it is also possible to reduce being configured to of unit two
This.
As it is shown in figure 9, be the Condensing units system theory of constitution schematic diagram of this utility model the tenth embodiment.
In the unit one of the present embodiment, compressor of air conditioner 1 air vent connects the import of condenser 12, condensation
The outlet of device 12 connects the import of capillary tube 112, the import of outlet connecting plate type heat exchanger 01 primary side of capillary tube 112,
The outlet of plate type heat exchanger 01 primary side connects the air entry of compressor of air conditioner 11, thus forms a complete loop.
In the unit two of the present embodiment, middle temperature compressor 21 air vent connects the import of condenser 22, condensation
The outlet of device 22 connects the import of reservoir 23, the import of outlet connecting plate type heat exchanger 01 secondary side of reservoir 23, plate
The outlet of formula heat exchanger 01 secondary side connects liquid feeding pipeline 201, and suction line 202 connects the suction of warming middle-JIAO temperature compressor 21
QI KOU.
In the present embodiment, liquid feeding pipeline 201 and suction line 202 are used for connecting throttling arrangement and the steaming of middle temperature refrigeration
Send out device.
In the present embodiment, unit one provides highly pressurised liquid supercool required cold to unit two by plate type heat exchanger 01
Amount, thus improve the efficiency of whole device, simultaneously as the refrigerating capacity of unit two substantially increases, it is also possible to reduce single
The deployment cost of unit two.
In the present embodiment, unit one aims at set by unit two.Unit is condensed for compact, generally uses
Air-cooled, at this moment, unit one and unit two can share condensation fan, cost-effective, compact conformation.
As it is shown in figure 9, be the Condensing units system theory of constitution schematic diagram of eleventh embodiment of the invention.
The present embodiment and the tenth embodiment are similar to, and difference is: in the present embodiment, and 21 is cryogenic compressor,
Therefore, liquid feeding pipeline 201 and suction line 202 are used for connecting throttling arrangement and the vaporizer of cryogenic refrigeration.
Same, in the present embodiment, unit one aims at set by unit two.Unit is condensed for compact,
Generally using air-cooled, at this moment, unit one and unit two can share condensation fan, cost-effective, compact conformation.
Finally should be noted that: above example is merely to illustrate the technical solution of the utility model rather than to it
Limiting, person of an ordinary skill in the technical field is it is understood that still can enter detailed description of the invention of the present utility model
Row is revised or portion of techniques feature carries out equivalence replacement.So, without departing from the essence of technical solutions of the utility model
God, all should contain in the middle of the technical scheme scope that this utility model is claimed.
Claims (10)
1. a refrigeration or heat pump, it is characterised in that: comprising at least two refrigeration or heat pump unit, the two refrigeration or heat pump unit are respectively unit one and unit two；
Described unit one comprises compressor (group), condenser, throttling arrangement and vaporizer, and described unit two comprises compressor (group), condenser, subcooler, throttling arrangement and vaporizer；
Described unit one and described unit two have separate coolant channel, described unit one and described unit two to be coupled by intermediate heat transfer device, and described intermediate heat transfer device is the vaporizer of described unit one, are also the subcoolers of described unit two；
Described intermediate heat transfer device does not comprise intermediate heat transfer fluid, the cold-producing medium of described unit one and the cold-producing medium of described unit two by intermediate heat transfer device direct heat transfer.
A kind of refrigeration the most according to claim 1 or heat pump, it is characterised in that: in addition to described intermediate heat transfer device, described unit one also has other vaporizers, and the compressor of described unit one (group) can realize energy adjustment.
A kind of refrigeration the most according to claim 2 or heat pump, it is characterized in that: it is for the refrigerating plant containing two or more warm areas, described unit one and described unit two are responsible for different warm areas, described unit one and described unit two all only have a compressor, the compressor of described unit one can regulate rotating speed or can change stroke.
A kind of refrigeration the most according to claim 1 or heat pump, it is characterized in that: the compressor (group) of described unit one aims at the setting of described unit one, described unit one aims at other refrigeration or heat pump unit in described refrigeration or heat pump and arranges, but described unit one can also provide cooling for running relevant electro-heat equipment to described refrigeration or heat pump.
A kind of refrigeration the most according to claim 4 or heat pump, it is characterised in that: all refrigeration comprised or the condenser of heat pump unit have the identical type of cooling.
A kind of refrigeration the most according to claim 5 or heat pump, it is characterised in that: only comprise two refrigeration or heat pump unit, and the condenser of the two unit share blower fan or (with) water pump.
7. a refrigeration or heat pump assembly, it is characterised in that: include the refrigeration described in any one of the claims 1 to 6 or heat pump.
8. a Condensing units, it is characterized in that: including at least a refrigeration unit and a compression condensation unit, described refrigeration unit includes compressor (group), condenser, throttling arrangement and vaporizer, described compression condensation unit includes that compressor (group), condenser, subcooler, described refrigeration unit and described compression condensation unit are respectively arranged with separate coolant channel；
Described refrigeration unit and described compression condensation unit are coupled by intermediate heat transfer device, and described intermediate heat transfer device is the vaporizer of described refrigeration unit, are also the subcoolers of described compression condensation unit；
Described intermediate heat transfer device does not contains intermediate heat transfer fluid, described refrigeration unit and described compression condensation unit by intermediate heat transfer device direct heat transfer；
The condenser of described refrigeration unit and the condenser of described compression condensation unit have the identical type of cooling.
A kind of Condensing units the most according to claim 8, it is characterized in that: the compressor (group) of described refrigeration unit aims at described refrigeration unit and arranges, described refrigeration unit aims at described compression condensation unit and arranges, but described refrigeration unit can also provide cooling for running relevant electro-heat equipment to described Condensing units.
A kind of Condensing units the most according to claim 9, it is characterised in that: the condenser of described refrigeration unit and the condenser of described compression condensation unit share blower fan or (with) pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620278478.5U CN205593208U (en) | 2016-04-01 | 2016-04-01 | Refrigeration or heat pump system , device and compressing and condensing unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620278478.5U CN205593208U (en) | 2016-04-01 | 2016-04-01 | Refrigeration or heat pump system , device and compressing and condensing unit |
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| CN205593208U true CN205593208U (en) | 2016-09-21 |
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| CN201620278478.5U Expired - Fee Related CN205593208U (en) | 2016-04-01 | 2016-04-01 | Refrigeration or heat pump system , device and compressing and condensing unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855385A (en) * | 2019-02-12 | 2019-06-07 | 常州大学 | A kind of cold and hot locker of solar energy multi-temperature zone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855385A (en) * | 2019-02-12 | 2019-06-07 | 常州大学 | A kind of cold and hot locker of solar energy multi-temperature zone |
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