CN106766310A - Refrigeration system, refrigeration control method and refrigeration control device - Google Patents
Refrigeration system, refrigeration control method and refrigeration control device Download PDFInfo
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- CN106766310A CN106766310A CN201611082404.5A CN201611082404A CN106766310A CN 106766310 A CN106766310 A CN 106766310A CN 201611082404 A CN201611082404 A CN 201611082404A CN 106766310 A CN106766310 A CN 106766310A
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- temperature
- refrigeration
- leaving water
- medium pump
- refrigerated medium
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 240
- 238000000034 method Methods 0.000 title claims abstract description 153
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 184
- 230000006835 compression Effects 0.000 claims abstract description 118
- 238000007906 compression Methods 0.000 claims abstract description 118
- 230000007246 mechanism Effects 0.000 claims abstract description 115
- 230000004087 circulation Effects 0.000 claims abstract description 58
- 239000003507 refrigerant Substances 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 abstract 1
- 230000008859 change Effects 0.000 description 9
- 238000001704 evaporation Methods 0.000 description 8
- 238000007710 freezing Methods 0.000 description 7
- 230000008014 freezing Effects 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000009172 bursting Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The invention provides a kind of refrigeration system, refrigeration control method and refrigeration control device, refrigeration system includes：Compressor (10), first condenser (20), second condenser (30), refrigerated medium pump (40) and evaporator (50), evaporator (50) includes separate the first heat exchanging chamber (51) and the second heat exchanging chamber (52), the water circulation pipe of evaporator (50) runs through the first heat exchanging chamber (51) and the second heat exchanging chamber (52), compressor (10), first condenser (20) and the first heat exchanging chamber (51) form compression mechanism SAPMAC method, refrigerated medium pump (40), second heat exchanging chamber (52) and the second condenser (30) form refrigerated medium pump kind of refrigeration cycle.Technical scheme efficiently solves two circulations of refrigerant circulation in the prior art and compression mechanism SAPMAC method and is independently arranged causes part more and baroque problem.
Description
Technical field
The present invention relates to refrigeration technology field, and in particular to a kind of refrigeration system, refrigeration control method and refrigeration control dress
Put.
Background technology
Need whole year operation to freeze for special dimensions such as technique factory building, data center, Nuclear Power Station Factory Buildings, meet annual fortune
Row refrigeration can use cooling by wind.For common cooling by wind, there is environment temperature when freezing in the winter time
It is too low, can not normally start after causing compressor shutdown；Refrigeration system condensation temperature is low, there is that height pressure difference is small, compressor surpasses
The shortcomings of scope is run, when temperature is further reduced, refrigeration compressor cannot just start at all, it is impossible to meet user's refrigeration need
Ask.
At present, the main method of cooling by wind solution winter cooling has following several：
The first is to increase refrigerated medium pump kind of refrigeration cycle, for example, the patent in Application No. 201320461733.6 is said
Bright book【0032】Section is recorded：Natural cold-energy refrigerating circuit and compression refrigeration circuits also can each be used alone condenser and
Evaporator is so as to the separate refrigerating circuit of each self-forming；Now there is the first condenser, second cold in whole refrigeration system
Condenser, the first evaporator and the second evaporator, compressor, the first condenser, choke valve and the first evaporator composition compression system
Cold loop, the composition natural cold-energy refrigerating circuit of the second condenser, refrigerated medium pump and the second evaporator, natural cold-energy refrigerating circuit
Can respective independent operating with compression refrigeration circuits.In the winter time under low ring temperature, compression mechanism SAPMAC method is not turned on, using refrigerated medium pump
Circulating refrigerant, outside refrigerant room after heat release cooling, the chilled water in cooling evaporator package, so as to realize natural cooling (free
cooling).Two circulations of refrigerant circulation and compression mechanism SAPMAC method are independently arranged, and part is more, complex structure.
Second is to increase package anti-icing fluid, can normally be used under low temperature in the winter time.
The content of the invention
It is a primary object of the present invention to provide a kind of refrigeration system, refrigeration control method and refrigeration control device, to solve
Certainly refrigerant circulation and compression mechanism SAPMAC method two are circulated to be independently arranged and cause part more and complex structure in the prior art
Problem.
To achieve these goals, according to an aspect of the invention, there is provided a kind of refrigeration system, including：Compressor,
First condenser, the second condenser, refrigerated medium pump and evaporator, evaporator are changed including the first separate heat exchanging chamber and second
Hot chamber, the water circulation pipe of evaporator runs through the first heat exchanging chamber and the second heat exchanging chamber, compressor, the first condenser and the first heat exchange
Chamber forms compression mechanism SAPMAC method, and refrigerated medium pump, the second heat exchanging chamber and the second condenser form refrigerated medium pump kind of refrigeration cycle.
Further, at least part of pipeline is located in the refrigerant in the second heat exchanging chamber in water circulation pipe.
Further, evaporator includes housing and dividing plate, and housing has heat exchanging chamber, and dividing plate is arranged in heat exchanging chamber to change
Hot chamber is separated into the first heat exchanging chamber and the second heat exchanging chamber, and water circulation pipe runs through dividing plate.
Further, refrigeration system also includes the first blower fan and the second blower fan, and the first blower fan is arranged on the first condenser
Side, the second blower fan is arranged on the side of the second condenser.
Further, the first blower fan and the second blower fan are frequency conversion fan.
According to another aspect of the present invention, there is provided a kind of refrigeration control method for controlling above-mentioned refrigeration system,
Including：Obtain the current state of compression mechanism SAPMAC method and the current state of refrigerated medium pump kind of refrigeration cycle；According to the room for detecting
Current state and the refrigerated medium pump refrigeration of the actual leaving water temperature and compression mechanism SAPMAC method of external environment temperature and evaporator are followed
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle of ring；Judge whether actual leaving water temperature is more than
Equal to standby temperature；When actual leaving water temperature is more than or equal to standby temperature, using the work of compression mechanism SAPMAC method now
Current state and the refrigerated medium pump refrigeration that the working condition of state and refrigerated medium pump kind of refrigeration cycle updates compression mechanism SAPMAC method are followed
The current state of ring.
Further, when actual leaving water temperature is less than standby temperature, close compressor kind of refrigeration cycle and refrigerated medium pump system
SAPMAC method.
Further, according to the actual leaving water temperature and compressor cooling of the outdoor environment temperature and evaporator for detecting
The current state of circulation and the current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or refrigerated medium pump refrigeration
Circulation is comprised the following steps：Judge outdoor environment temperature whether more than the first preset temperature and outdoor environment temperature and actual water outlet
Whether temperature difference is less than or equal to the second preset temperature, and the first preset temperature is less than the second preset temperature；Work as outdoor environment temperature
When difference more than the first preset temperature and outdoor environment temperature and actual leaving water temperature is less than or equal to the second preset temperature, compressor
Kind of refrigeration cycle and refrigerated medium pump kind of refrigeration cycle are freezed.
Further, according to the actual leaving water temperature and compressor cooling of the outdoor environment temperature and evaporator for detecting
The current state of circulation and the current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or refrigerated medium pump refrigeration
Circulation is comprised the following steps：When outdoor environment temperature more than the first preset temperature and outdoor environment temperature and actual leaving water temperature it
When difference is more than the second preset temperature, judge whether outdoor environment temperature and the difference of actual leaving water temperature are more than the 3rd preset temperature,
3rd preset temperature is more than the second preset temperature；When the difference of outdoor environment temperature and actual leaving water temperature is more than the 3rd preset temperature
When, compression mechanism SAPMAC method is freezed, and refrigerated medium pump kind of refrigeration cycle stops refrigeration.
Further, according to the actual leaving water temperature and compressor cooling of the outdoor environment temperature and evaporator for detecting
The current state of circulation and the current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or refrigerated medium pump refrigeration
Circulation is comprised the following steps：When the difference of outdoor environment temperature and actual leaving water temperature is more than the second preset temperature and less than or equal to the
During three preset temperatures, compression mechanism SAPMAC method is freezed, and the working condition of refrigerated medium pump kind of refrigeration cycle is refrigeration pump circulation
Current state.
Further, according to the actual leaving water temperature and compressor cooling of the outdoor environment temperature and evaporator for detecting
The current state of circulation and the current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or refrigerated medium pump refrigeration
Circulation is comprised the following steps：When outdoor environment temperature less than or equal to the first preset temperature and outdoor environment temperature with actually go out water temperature
When the difference of degree is less than or equal to the second preset temperature, whether outdoor environment temperature is judged less than or equal to the 4th preset temperature, the 4th is pre-
If temperature is less than the first preset temperature；When outdoor environment temperature is less than or equal to four preset temperatures, compression mechanism SAPMAC method stops
Only freeze, refrigerated medium pump kind of refrigeration cycle is freezed.
Further, according to the actual leaving water temperature and compressor cooling of the outdoor environment temperature and evaporator for detecting
The current state of circulation and the current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or refrigerated medium pump refrigeration
Circulation is comprised the following steps：When outdoor temperature is less than or equal to the first preset temperature and during more than four preset temperatures, compression mechanism
The working condition of SAPMAC method is the current state of compression mechanism SAPMAC method, and refrigerated medium pump kind of refrigeration cycle is freezed.
Further, according to the actual leaving water temperature and compressor cooling of the outdoor environment temperature and evaporator for detecting
The current state of circulation and the current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or refrigerated medium pump refrigeration
Circulation is comprised the following steps：When actual leaving water temperature is more than default leaving water temperature and preset temperature deviation sum, to compressor
Load loaded, or, when actual leaving water temperature is less than or equal to the difference of default leaving water temperature and preset temperature deviation, to pressure
The load of contracting machine is unloaded, or, when actual leaving water temperature is more than the difference of default leaving water temperature and preset temperature deviation and is less than
During equal to default leaving water temperature and preset temperature deviation sum, the load of compressor is constant.
Further, according to the actual leaving water temperature and compressor cooling of the outdoor environment temperature and evaporator for detecting
The current state of circulation and the current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or refrigerated medium pump refrigeration
Circulation is comprised the following steps：When actual leaving water temperature is more than default leaving water temperature and preset temperature deviation sum, to refrigerant
Frequency conversion fan in circulation carries out raising frequency, or, when actual leaving water temperature is less than or equal to default leaving water temperature and preset temperature deviation
Difference when, frequency reducing is carried out to the frequency conversion fan in refrigerant circulation, or, when actual leaving water temperature is more than default leaving water temperature and in advance
If the difference of temperature deviation and during less than or equal to default leaving water temperature and preset temperature deviation sum, the frequency conversion wind in refrigerant circulation
The frequency of machine is constant.
In accordance with a further aspect of the present invention, there is provided a kind of refrigeration control device, including：First acquisition module, for obtaining
Take the current state of compressor cooling circulation and the current state of refrigerated medium pump kind of refrigeration cycle；First control module, for basis
The outdoor environment temperature and the actual leaving water temperature of evaporator and the current state and refrigeration of compression mechanism SAPMAC method for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle of agent pump kind of refrigeration cycle；First judge module, uses
In judging actual leaving water temperature whether more than or equal to standby temperature；First performing module, for actual leaving water temperature more than etc.
When standby temperature, using compression mechanism SAPMAC method now working condition and refrigerated medium pump kind of refrigeration cycle working condition more
The current state of new compression mechanism SAPMAC method and the current state of refrigerated medium pump kind of refrigeration cycle.
Further, also include：Second performing module, for when actual leaving water temperature is less than standby temperature, closing pressure
Contracting mechanism SAPMAC method and refrigerated medium pump kind of refrigeration cycle.
Further, the first control module also includes：First judging unit, for judging whether outdoor environment temperature is more than
Whether the difference of the first preset temperature and outdoor environment temperature and actual leaving water temperature is less than or equal to the second preset temperature, and first presets
Temperature is less than the second preset temperature；First execution unit, for when outdoor environment temperature is more than the first preset temperature and outdoor ring
When the difference of border temperature and actual leaving water temperature is less than or equal to the second preset temperature, compression mechanism SAPMAC method and refrigerated medium pump refrigeration are followed
Ring is freezed.
Further, the first control module also includes：Second judging unit, for when outdoor environment temperature is more than first pre-
If the difference of temperature and outdoor environment temperature and actual leaving water temperature is more than the second preset temperature, outdoor environment temperature and reality are judged
Whether the difference of border leaving water temperature is more than the 3rd preset temperature, and the 3rd preset temperature is more than the second preset temperature；Second execution unit,
For when outdoor environment temperature and actual leaving water temperature difference be more than three preset temperatures when, compression mechanism SAPMAC method system
Cold, refrigerated medium pump kind of refrigeration cycle stops refrigeration.
Further, the first control module also includes：3rd execution unit, for when outdoor environment temperature and actual water outlet
More than the second preset temperature and during less than or equal to three preset temperatures, compression mechanism SAPMAC method is freezed temperature difference, refrigeration
The working condition of agent pump kind of refrigeration cycle is the current state of refrigeration pump circulation.
Further, the first control module also includes：3rd judging unit, for when outdoor environment temperature is less than or equal to the
When the difference of one preset temperature and outdoor environment temperature and actual leaving water temperature is less than or equal to the second preset temperature, outdoor environment is judged
Whether temperature is less than or equal to the 4th preset temperature, and the 4th preset temperature is less than the first preset temperature；4th execution unit, for working as
When outdoor environment temperature is less than or equal to four preset temperatures, compression mechanism SAPMAC method stops refrigeration, and refrigerated medium pump kind of refrigeration cycle is entered
Row refrigeration.
Further, the first control module also includes：5th execution unit, for when outdoor temperature is less than or equal to first pre-
If temperature and during more than four preset temperatures, the working condition of compression mechanism SAPMAC method is the current shape of compression mechanism SAPMAC method
State, refrigerated medium pump kind of refrigeration cycle is freezed.
Technical solution of the present invention, has the following advantages that：First heat exchanging chamber and the second heat exchanging chamber series design in water system,
A water circulation is shared, refrigerated medium pump kind of refrigeration cycle and compressor cooling recycle an evaporator, reduce parts,
Simple structure.Independent refrigerated medium pump kind of refrigeration cycle and compression mechanism SAPMAC method can realize compression mechanism SAPMAC method, naturally cold
But kind of refrigeration cycle independent operating and run when confusing.Meanwhile, at low ambient temperatures, two systems are standby each other, wherein
During any one system failure, another system can normally be run, and lift the operational reliability of whole system.According to detection
The environment temperature for arriving and actual leaving water temperature, automatic control compressor kind of refrigeration cycle, refrigerated medium pump kind of refrigeration cycle and correspondence control
The cold output of pattern, it is ensured that in the case of working conditions change, water temperature does not fluctuate in operational mode handoff procedure, it is ensured that cold is continuous
Output, realizes the energy-conservation of unit whole year operation.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows the structural representation of the embodiment of refrigeration system of the invention；
Fig. 2 shows the structural representation of the evaporator of the refrigeration system of Fig. 1；
Fig. 3 shows the schematic flow sheet of the embodiment of refrigeration control method of the invention；And
Fig. 4 shows the schematic flow sheet of a part for the refrigeration control method of Fig. 3.
Description of reference numerals：
10th, compressor；20th, the first condenser；30th, the second condenser；40th, refrigerated medium pump；50th, evaporator；51st, first change
Hot chamber；52nd, the second heat exchanging chamber；53rd, housing；54th, dividing plate；60th, the first blower fan；70th, the second blower fan；80th, electric expansion valve.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, the refrigeration system of the present embodiment includes：Compressor 10, the first condenser 20, the second condenser 30,
Refrigerated medium pump 40 and evaporator 50, evaporator 50 include separate the first heat exchanging chamber 51 and the second heat exchanging chamber 52, evaporator
50 water circulation pipe runs through the first heat exchanging chamber 51 and the second heat exchanging chamber 52, compressor 10, the first condenser 20 and the first heat exchange
Chamber 51 forms compression mechanism SAPMAC method, and refrigerated medium pump 40, the second heat exchanging chamber 52 and the second condenser 30 form refrigerated medium pump refrigeration
Circulation.
Using the refrigeration system of the present embodiment, the first heat exchanging chamber 51 and the second series design in water system of heat exchanging chamber 52,
A water circulation is shared, refrigerated medium pump kind of refrigeration cycle and compressor cooling recycle an evaporator, reduce parts,
Simple structure.Independent refrigerated medium pump kind of refrigeration cycle and compression mechanism SAPMAC method can realize compression mechanism SAPMAC method, naturally cold
But kind of refrigeration cycle independent operating and run when confusing.Meanwhile, at low ambient temperatures, two systems are standby each other, wherein
During any one system failure, another system can normally be run, and lift the operational reliability of whole system.
Cooling by wind of the prior art, when natural cooling is run and is circulated, the evaporating temperature in evaporator package
Mainly being soaked position in package by refrigerant in package is influenceed, and this liquid level is subject to fan delivery, environment temperature, condensing heat-exchange
State etc. influences, the uncontrollable stabilization of liquid level.Therefore, the evaporating temperature in evaporator package cannot stability contorting.When refrigerant base
This is not immersed in when on heat exchanger tube, does not have the heating of water, and refrigerant can directly evaporate, and the evaporating temperature of evaporator can be close to outdoor
Environment temperature.When outdoor environment temperature is too low, package evaporating temperature is low in the process of running easily there are the feelings of bursting by freezing package
Condition.
In the present embodiment, at least part of pipeline is located in the refrigerant in the second heat exchanging chamber 52 in water circulation pipe.It is above-mentioned
Structure can be divided into two kinds of situations, and one kind is that at least part of pipeline (is completely soaked) under refrigerant liquid level, another situation
It is that the top of the contact of pipeline refrigerant liquid level but pipeline all the way does not have and soaked.Water circulation pipe is heat exchanger tube, and refrigeration system is just
Often during operation, in order to prevent water freezing, on the premise of without anti-icing fluid, refrigeration system runs minimum leaving water temperature and will not be less than 3
℃.(leak water in heat exchanger tube) after refrigerant is dipped into a few road heat exchanger tubes, due to the heat effect of water, refrigerant temperature can be approached substantially
Water temperature, therefore evaporating temperature is substantially close to water temperature, so as to realize that the evaporating temperature of the refrigerant in package under any operating mode is all higher than 0
DEG C, it is ensured that winter operation package occurs without the situation of bursting by freezing.
Specifically, in refrigerated medium pump kind of refrigeration cycle, the cooling medium charging amount of design, it is ensured that in fin condenser and system pipes
After being completely filled with liquid refrigerants, a few road pipelines of bottommost soak liquid refrigerants in package, it is ensured that temperature is evaporated in running
Both greater than 0 DEG C of degree.Preferably, general package bottom Liang Zhi No. tri- packages immersed with refrigerant it is ensured that evaporating temperature.
As shown in Fig. 2 in the present embodiment, evaporator 50 includes housing 53 and dividing plate 54, housing 53 has heat exchanging chamber, every
Plate 54 is arranged in heat exchanging chamber and is separated into the first heat exchanging chamber 51 and the second heat exchanging chamber 52 with by heat exchanging chamber, water circulation pipe run through every
Plate 54.The simple structure of evaporator 50, it is easy to process, it is with low cost.
Refrigeration system also includes the first blower fan 60 and the second blower fan 70, and the first blower fan 60 is arranged on the one of the first condenser 20
Side, the second blower fan 70 is arranged on the side of the second condenser 30.Blower fan can accelerate heat exchange efficiency, improve heat exchange efficiency.First
Blower fan and the second blower fan may each be multigroup.
In the present embodiment, the first blower fan 60 and the second blower fan 70 are frequency conversion fan.During refrigerated medium pump kind of refrigeration cycle, lead to
Cross and control is adjusted to the frequency conversion fan in refrigerated medium pump kind of refrigeration cycle, realize the electrodeless tune of ability of refrigerated medium pump kind of refrigeration cycle
Section, realizes energy-saving run of the unit when natural cooling is circulated, the safe and reliable operation of each device.
Under ultralow outdoor environment temperature, because outdoor environment temperature is low, refrigerant temperature in outdoor fin substantially and
Outdoor environment temperature is consistent, after being again started up in ultralow temperature shutdown, because the refrigerant temperature in fin is very low, ultralow temperature
Refrigerant is entered in package by refrigerated medium pump pump, the possibility that there is bursting by freezing package.In order to ensure in the case of shutting down refrigerant temperature in fin
Degree is less low, in the present embodiment, in refrigerated medium pump kind of refrigeration cycle, is not provided with valve, i.e. stream and leads directly to, and can so realize
In the case of standby, shutdown, the water in package is heated to refrigerant in system, realizes that the refrigerant in whole system is higher at one
At a temperature of, after ensureing to be shut down at a temperature of ultralow environment, refrigeration system start-up course package inlet pipe refrigerant temperature compares
It is high, it is ensured that to occur without the situation of start-up course bursting by freezing package.It is of course also possible to increase controlling stream in refrigerated medium pump kind of refrigeration cycle
The motor-driven valve of amount, it is also possible to which by-passing valve is set.
Electric expansion valve 80 is provided between the first condenser and the first heat exchanging chamber.Compression mechanism SAPMAC method is：Compression
Machine → finned heat exchanger → electric expansion valve → case tube heat exchanger → compressor.Refrigerated medium pump kind of refrigeration cycle：Refrigerated medium pump → shell
Heat exchange of heat pipe → finned heat exchanger → refrigerated medium pump.
Present invention also provides a kind of refrigeration control method for controlling above-mentioned refrigeration system, as shown in figure 3, according to
The embodiment of the refrigeration control method of the application includes：
Obtain the current state of compression mechanism SAPMAC method and the current state of refrigerated medium pump kind of refrigeration cycle；
Actual leaving water temperature and compression mechanism SAPMAC method according to the outdoor environment temperature and evaporator 50 for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle of current state and refrigerated medium pump kind of refrigeration cycle；
Judge actual leaving water temperature whether more than or equal to standby temperature；
Actual leaving water temperature be more than or equal to standby temperature when, using compression mechanism SAPMAC method now working condition and
The working condition of refrigerated medium pump kind of refrigeration cycle updates the current state of compression mechanism SAPMAC method and working as refrigerated medium pump kind of refrigeration cycle
Preceding state.
Using the refrigeration control method of the present embodiment, according to the environment temperature and actual leaving water temperature that detect, automatic control
The cold output of compression mechanism SAPMAC method processed, refrigerated medium pump kind of refrigeration cycle and correspondence control model, it is ensured that in working conditions change situation
Under, water temperature is not fluctuated in operational mode handoff procedure, it is ensured that cold is continuously exported, and realizes the energy-conservation of unit whole year operation.
When actual leaving water temperature is less than standby temperature, close compressor kind of refrigeration cycle and refrigerated medium pump kind of refrigeration cycle.Treat
Machine temperature be the actual leaving water temperature of whole machine exceed user require default leaving water temperature after, and enter stopped status under a temperature
Angle value.Standby purpose is after actual leaving water temperature reaches user's request, in order to prevent causing because actual leaving water temperature is too low
Antifreeze and poor user experience and the shutdown action that performs.Standby temperature is less than default leaving water temperature, and standby temperature is more than 0 DEG C.It is excellent
Selection of land, standby temperature is generally smaller than default leaving water temperature 1~2 DEG C.
As shown in figure 4, in the present embodiment, water temperature is actually gone out according to the outdoor environment temperature and evaporator 50 for detecting
The current state control compression mechanism SAPMAC method of the current state and refrigerated medium pump kind of refrigeration cycle of degree and compression mechanism SAPMAC method
And/or refrigerated medium pump kind of refrigeration cycle is comprised the following steps：
Judge outdoor environment temperature whether more than the first preset temperature and the difference of outdoor environment temperature and actual leaving water temperature
Whether second preset temperature is less than or equal to, and the first preset temperature is less than the second preset temperature；
When outdoor environment temperature is less than etc. more than the difference of the first preset temperature and outdoor environment temperature and actual leaving water temperature
When the second preset temperature, compression mechanism SAPMAC method and refrigerated medium pump kind of refrigeration cycle are freezed.
Actual leaving water temperature and compression mechanism SAPMAC method according to the outdoor environment temperature and evaporator 50 for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle bag of current state and refrigerated medium pump kind of refrigeration cycle
Include following steps：
When outdoor environment temperature is more than the more than the difference of the first preset temperature and outdoor environment temperature and actual leaving water temperature
During two preset temperatures, judge whether outdoor environment temperature and the difference of actual leaving water temperature are more than the 3rd preset temperature, the 3rd presets
Temperature is more than the second preset temperature；
When the difference of outdoor environment temperature and actual leaving water temperature is more than three preset temperatures, compression mechanism SAPMAC method is carried out
Refrigeration, refrigerated medium pump kind of refrigeration cycle stops refrigeration.
Actual leaving water temperature and compression mechanism SAPMAC method according to the outdoor environment temperature and evaporator 50 for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle bag of current state and refrigerated medium pump kind of refrigeration cycle
Include following steps：
When the difference of outdoor environment temperature and actual leaving water temperature is more than the second preset temperature and less than or equal to the 3rd default temperature
When spending, compression mechanism SAPMAC method is freezed, and the working condition of refrigerated medium pump kind of refrigeration cycle is the current state of refrigeration pump circulation.
Actual leaving water temperature and compression mechanism SAPMAC method according to the outdoor environment temperature and evaporator 50 for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle bag of current state and refrigerated medium pump kind of refrigeration cycle
Include following steps：
When outdoor environment temperature is small less than or equal to the difference of the first preset temperature and outdoor environment temperature and actual leaving water temperature
When equal to the second preset temperature, whether outdoor environment temperature is judged less than or equal to the 4th preset temperature, the 4th preset temperature is small
In the first preset temperature；
When outdoor environment temperature is less than or equal to four preset temperatures, compression mechanism SAPMAC method stops refrigeration, refrigerated medium pump
Kind of refrigeration cycle is freezed.
Actual leaving water temperature and compression mechanism SAPMAC method according to the outdoor environment temperature and evaporator 50 for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle bag of current state and refrigerated medium pump kind of refrigeration cycle
Include following steps：
When outdoor temperature is less than or equal to the first preset temperature and during more than four preset temperatures, the work of compression mechanism SAPMAC method
Make the current state that state is compression mechanism SAPMAC method, refrigerated medium pump kind of refrigeration cycle is freezed.
Actual leaving water temperature and compression mechanism SAPMAC method according to the outdoor environment temperature and evaporator 50 for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle bag of current state and refrigerated medium pump kind of refrigeration cycle
Include following steps：
When actual leaving water temperature is more than default leaving water temperature and preset temperature deviation sum, the load to compressor 10 is entered
Row loading, or,
When actual leaving water temperature is less than or equal to the difference of default leaving water temperature and preset temperature deviation, to the negative of compressor 10
It is loaded into going unloading, or,
It is more than the difference of default leaving water temperature and preset temperature deviation and less than or equal to presetting out water temperature when actual leaving water temperature
When degree and preset temperature deviation sum, the load of compressor 10 is constant.
Actual leaving water temperature and compression mechanism SAPMAC method according to the outdoor environment temperature and evaporator 50 for detecting
Current state control compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle bag of current state and refrigerated medium pump kind of refrigeration cycle
Include following steps：
When actual leaving water temperature is more than default leaving water temperature and preset temperature deviation sum, to the change in refrigerant circulation
Frequency blower fan carries out raising frequency, or,
When actual leaving water temperature is less than or equal to the difference of default leaving water temperature and preset temperature deviation, in refrigerant circulation
Frequency conversion fan carry out frequency reducing, or,
It is more than the difference of default leaving water temperature and preset temperature deviation and less than or equal to presetting out water temperature when actual leaving water temperature
When degree and preset temperature deviation sum, the frequency of the frequency conversion fan in refrigerant circulation is constant.
In the present embodiment, the second preset temperature and the 3rd preset temperature are in the range of -10 DEG C~0 DEG C.Preferably,
Second preset temperature is -5 DEG C, and the 3rd preset temperature is -2 DEG C.
In the present embodiment, in the range of -20 DEG C~-15 DEG C, the 4th preset temperature is at -30 DEG C for the first preset temperature
~-20 DEG C.Preferably, the first preset temperature is -18 DEG C, and the 4th preset temperature is -22 DEG C.
In the present embodiment, preset temperature deviation is in the range of 0.2 DEG C~1 DEG C.Default leaving water temperature is at 3 DEG C~15 DEG C
In the range of.
Specifically, the control process of refrigeration control method is as follows：
(1) compression mechanism SAPMAC method
1. ＞ -18 DEG C of outdoor environment temperature, compression mechanism SAPMAC method is freezed.
2. outdoor environment temperature≤- 22 DEG C, compression mechanism SAPMAC method stops refrigeration.
3. -22 DEG C of ＜ outdoor environment temperature≤- 18 DEG C, the state that compressor is remembered before keeping.
(2) refrigerated medium pump kind of refrigeration cycle
1. outdoor environment temperature-actual leaving water temperature≤- 5 DEG C, refrigerant pump kind of refrigeration cycle is freezed.
2. outdoor environment temperature-＞ -2 DEG C of actual leaving water temperature, refrigerant pump kind of refrigeration cycle stops refrigeration.
3. -5 DEG C of ＜ outdoor environment temperatures-actual leaving water temperature≤- 2 DEG C, refrigerant pump keep before memory state.
(3) compressor cooling circulation ability regulation
1. actual leaving water temperature ＞ presets leaving water temperature+preset temperature deviation, the frequency conversion wind in refrigerated medium pump kind of refrigeration cycle
Unit frequency at full capacity after, compressor load loading regulation.
2. actual leaving water temperature≤default leaving water temperature-preset temperature deviation, compressor load load out control.
3. leaving water temperature-actual leaving water temperatures of preset temperature deviation ＜≤default leaving water temperature+preset temperature deviation is preset,
Compressor load keeps.
(4) refrigerated medium pump kind of refrigeration cycle capacity adjustment
1. actual leaving water temperature ＞ presets leaving water temperature+preset temperature deviation, the frequency conversion wind in refrigerated medium pump kind of refrigeration cycle
Machine raising frequency is adjusted.
2. actual leaving water temperature≤default leaving water temperature-preset temperature deviation, and compressor load is minimum, refrigerated medium pump system
Frequency conversion fan frequency reducing regulation in SAPMAC method.
3. leaving water temperature-actual leaving water temperatures of preset temperature deviation ＜≤default leaving water temperature+preset temperature deviation is preset,
Frequency conversion fan frequency in refrigerated medium pump kind of refrigeration cycle keeps.
(5) standby regulation
Actual leaving water temperature less than after standby temperature, close compressor kind of refrigeration cycle and refrigerated medium pump kind of refrigeration cycle.
Present invention also provides a kind of refrigeration control device, the embodiment of the refrigeration control device according to the application includes：
First acquisition module, for obtain compression mechanism SAPMAC method current state and refrigerated medium pump kind of refrigeration cycle it is current
State；
First control module, for the actual leaving water temperature according to the outdoor environment temperature that detects and evaporator 50 and
The current state of compression mechanism SAPMAC method and current state control compression mechanism SAPMAC method and/or the system of refrigerated medium pump kind of refrigeration cycle
Cryogenic fluid pump kind of refrigeration cycle；
First judge module, for judging actual leaving water temperature whether more than or equal to standby temperature；
First performing module, for when actual leaving water temperature is more than or equal to standby temperature, using compression mechanism now
The working condition of SAPMAC method and the working condition of refrigerated medium pump kind of refrigeration cycle update the current state and system of compression mechanism SAPMAC method
The current state of cryogenic fluid pump kind of refrigeration cycle.
Using the refrigeration control device of the present embodiment, according to the environment temperature and actual leaving water temperature that detect, automatic control
The cold output of compression mechanism SAPMAC method processed, refrigerated medium pump kind of refrigeration cycle and correspondence control model, it is ensured that in working conditions change situation
Under, water temperature is not fluctuated in operational mode handoff procedure, it is ensured that cold is continuously exported, and realizes the energy-conservation of unit whole year operation.
Refrigeration control device also includes：Second performing module, for when actual leaving water temperature is less than standby temperature, closing
Compression mechanism SAPMAC method and refrigerated medium pump kind of refrigeration cycle.
First control module also includes：First judging unit, for judging whether outdoor environment temperature is preset more than first
Whether the difference of temperature and outdoor environment temperature and actual leaving water temperature is less than or equal to the second preset temperature, and the first preset temperature is less than
Second preset temperature；First execution unit, for when outdoor environment temperature more than the first preset temperature and outdoor environment temperature with
When the difference of actual leaving water temperature is less than or equal to the second preset temperature, compression mechanism SAPMAC method and refrigerated medium pump kind of refrigeration cycle are carried out
Refrigeration.
First control module also includes：Second judging unit, for when outdoor environment temperature more than the first preset temperature and
When the difference of outdoor environment temperature and actual leaving water temperature is more than the second preset temperature, judges outdoor environment temperature and actually go out water temperature
Whether the difference of degree is more than the 3rd preset temperature, and the 3rd preset temperature is more than the second preset temperature；Second execution unit, for working as room
When the difference of external environment temperature and actual leaving water temperature is more than three preset temperatures, compression mechanism SAPMAC method is freezed, refrigerant
Pump kind of refrigeration cycle stops refrigeration.
First control module also includes：3rd execution unit, for when the difference of outdoor environment temperature and actual leaving water temperature
During more than the second preset temperature and less than or equal to three preset temperatures, compression mechanism SAPMAC method is freezed, refrigerated medium pump refrigeration
The working condition of circulation is the current state of refrigeration pump circulation.
First control module also includes：3rd judging unit, for when outdoor environment temperature is less than or equal to the first default temperature
When the difference of degree and outdoor environment temperature and actual leaving water temperature is less than or equal to the second preset temperature, whether outdoor environment temperature is judged
Less than or equal to the 4th preset temperature, the 4th preset temperature is less than the first preset temperature；4th execution unit, for working as outdoor environment
When temperature is less than or equal to four preset temperatures, compression mechanism SAPMAC method stops refrigeration, and refrigerated medium pump kind of refrigeration cycle is freezed.
First control module also includes：5th execution unit, for when outdoor temperature less than or equal to the first preset temperature and
During more than four preset temperatures, the working condition of compression mechanism SAPMAC method is the current state of compression mechanism SAPMAC method, refrigerant
Pump kind of refrigeration cycle is freezed.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
1st, solve cooling by wind run natural cooling circulate when ability cannot regulation problem, synchronously realize machine
The electrodeless energy adjustment of group.
2nd, when natural cooling circulation is run, the regulation to shell-tube evaporator evaporating temperature can be realized, so as to avoid steaming
Temperature is too low causes the phenomenon of freezing package for hair.
3rd, outdoor environment temperature less than actual leaving water temperature transition season, while run compression mechanism SAPMAC method and oneself
So cool down circularly cooling, it is ensured that while service ability, lift the operational reliability and operational energy efficiency of transition season.
4th, unit realizes the standby each other of two systems in transition season.
5th, realize cooling by wind can whole year operation refrigeration, particularly provided the user under ultra-low temperature surroundings in the winter time
Cold water, and operational reliability is high in the winter time, and user safeguards simple without additionally mounted other equipment.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (21)
1. a kind of refrigeration system, it is characterised in that including：Compressor (10), the first condenser (20), the second condenser (30),
Refrigerated medium pump (40) and evaporator (50), the evaporator (50) exchange heat including separate the first heat exchanging chamber (51) and second
Chamber (52), the water circulation pipe of the evaporator (50) runs through first heat exchanging chamber (51) and the second heat exchanging chamber (52), described
Compressor (10), first condenser (20) and first heat exchanging chamber (51) form compression mechanism SAPMAC method, the refrigeration
Agent pump (40), second heat exchanging chamber (52) and second condenser (30) form refrigerated medium pump kind of refrigeration cycle.
2. refrigeration system according to claim 1, it is characterised in that at least part of pipeline is located in the water circulation pipe
In refrigerant in second heat exchanging chamber (52).
3. refrigeration system according to claim 1 and 2, it is characterised in that the evaporator (50) including housing (53) and
Dividing plate (54), with heat exchanging chamber, the dividing plate (54) is arranged in the heat exchanging chamber with by the heat exchanging chamber housing (53)
First heat exchanging chamber (51) and second heat exchanging chamber (52) are separated into, the water circulation pipe runs through the dividing plate (54).
4. refrigeration system according to claim 1 and 2, it is characterised in that the refrigeration system also includes the first blower fan
(60) and the second blower fan (70), first blower fan (60) is arranged on the side of first condenser (20), second wind
Machine (70) is arranged on the side of second condenser (30).
5. refrigeration system according to claim 4, it is characterised in that first blower fan (60) and second blower fan
(70) it is frequency conversion fan.
6. a kind of refrigeration control method for controlling the refrigeration system any one of claim 1 to 5, its feature exists
In, including：
Obtain the current state of the compression mechanism SAPMAC method and the current state of the refrigerated medium pump kind of refrigeration cycle；
According to the outdoor environment temperature for detecting and the actual leaving water temperature and the compressor cooling of the evaporator (50)
The current state of the current state of circulation and the refrigerated medium pump kind of refrigeration cycle controls the compression mechanism SAPMAC method and/or described
Refrigerated medium pump kind of refrigeration cycle；
Judge the actual leaving water temperature whether more than or equal to standby temperature；
When the actual leaving water temperature is more than or equal to the standby temperature, using the work of the compression mechanism SAPMAC method now
The working condition for making state and the refrigerated medium pump kind of refrigeration cycle updates the current state of the compression mechanism SAPMAC method and described
The current state of refrigerated medium pump kind of refrigeration cycle.
7. refrigeration control method according to claim 6, it is characterised in that treated less than described in the actual leaving water temperature
During machine temperature, the compression mechanism SAPMAC method and the refrigerated medium pump kind of refrigeration cycle are closed.
8. refrigeration control method according to claim 6, it is characterised in that according to the outdoor environment temperature and institute that detect
State the actual leaving water temperature of evaporator (50) and the current state of the compression mechanism SAPMAC method and refrigerated medium pump refrigeration
The current state of circulation controls the compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle to comprise the following steps：
Judge the outdoor environment temperature whether more than the first preset temperature and the outdoor environment temperature and the actual water outlet
Whether temperature difference is less than or equal to the second preset temperature, and first preset temperature is less than second preset temperature；
When the outdoor environment temperature is more than first preset temperature and the outdoor environment temperature actually goes out water temperature with described
When the difference of degree is less than or equal to second preset temperature, the compression mechanism SAPMAC method and the refrigerated medium pump kind of refrigeration cycle are entered
Row refrigeration.
9. refrigeration control method according to claim 8, it is characterised in that according to the outdoor environment temperature and institute that detect
State the actual leaving water temperature of evaporator (50) and the current state of the compression mechanism SAPMAC method and refrigerated medium pump refrigeration
The current state of circulation controls the compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle to comprise the following steps：
When the outdoor environment temperature is more than first preset temperature and the outdoor environment temperature actually goes out water temperature with described
When the difference of degree is more than second preset temperature, judge whether the difference of the outdoor environment temperature and the actual leaving water temperature is big
In the 3rd preset temperature, the 3rd preset temperature is more than second preset temperature；
When the difference of the outdoor environment temperature and the actual leaving water temperature is more than three preset temperature, the compressor
Kind of refrigeration cycle is freezed, and the refrigerated medium pump kind of refrigeration cycle stops refrigeration.
10. refrigeration control method according to claim 9, it is characterised in that according to the outdoor environment temperature for detecting and
The actual leaving water temperature of the evaporator (50) and the current state and the refrigerated medium pump system of the compression mechanism SAPMAC method
The current state of SAPMAC method controls the compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle to comprise the following steps：
When the difference of the outdoor environment temperature and the actual leaving water temperature is more than second preset temperature and less than or equal to institute
When stating three preset temperatures, the compression mechanism SAPMAC method is freezed, and the working condition of the refrigerated medium pump kind of refrigeration cycle is
The current state of the refrigeration pump circulation.
11. refrigeration control methods according to claim 8, it is characterised in that according to the outdoor environment temperature that detects and
The actual leaving water temperature of the evaporator (50) and the current state and the refrigerated medium pump system of the compression mechanism SAPMAC method
The current state of SAPMAC method controls the compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle to comprise the following steps：
When the outdoor environment temperature actually goes out less than or equal to first preset temperature and the outdoor environment temperature with described
When the difference of coolant-temperature gage is less than or equal to second preset temperature, judge whether the outdoor environment temperature is preset less than or equal to the 4th
Temperature, the 4th preset temperature is less than first preset temperature；
When the outdoor environment temperature is less than or equal to four preset temperature, the compression mechanism SAPMAC method stops refrigeration,
The refrigerated medium pump kind of refrigeration cycle is freezed.
12. refrigeration control methods according to claim 11, it is characterised in that according to the outdoor environment temperature that detects and
The actual leaving water temperature of the evaporator (50) and the current state and the refrigerated medium pump system of the compression mechanism SAPMAC method
The current state of SAPMAC method controls the compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle to comprise the following steps：
When the outdoor temperature is less than or equal to first preset temperature and during more than four preset temperature, the compressor
The working condition of kind of refrigeration cycle is the current state of the compression mechanism SAPMAC method, the refrigerated medium pump kind of refrigeration cycle system
It is cold.
13. refrigeration control method according to claim 8 or 9 or 10 or 12, it is characterised in that according to the outdoor for detecting
The current state of the actual leaving water temperature and the compression mechanism SAPMAC method of environment temperature and the evaporator (50) and described
The current state control compression mechanism SAPMAC method of refrigerated medium pump kind of refrigeration cycle and/or the refrigerated medium pump kind of refrigeration cycle include
Following steps：
When the actual leaving water temperature is more than default leaving water temperature and preset temperature deviation sum, to the compressor (10)
Load is loaded, or,
When difference of the actual leaving water temperature less than or equal to the default leaving water temperature and the preset temperature deviation, to described
The load of compressor (10) is unloaded, or,
When the actual leaving water temperature is more than the difference of the default leaving water temperature and the preset temperature deviation and less than or equal to institute
When stating default leaving water temperature and the preset temperature deviation sum, the load of the compressor (10) is constant.
14. refrigeration control method according to claim 8 or 10 or 11 or 12, it is characterised in that according to the room for detecting
Current state and the institute of the actual leaving water temperature and the compression mechanism SAPMAC method of external environment temperature and the evaporator (50)
State current state control the compression mechanism SAPMAC method and/or the refrigerated medium pump kind of refrigeration cycle bag of refrigerated medium pump kind of refrigeration cycle
Include following steps：
When the actual leaving water temperature is more than default leaving water temperature and preset temperature deviation sum, in the refrigerant circulation
Frequency conversion fan carry out raising frequency, or,
When difference of the actual leaving water temperature less than or equal to the default leaving water temperature and the preset temperature deviation, to described
Frequency conversion fan in refrigerant circulation carries out frequency reducing, or,
When the actual leaving water temperature is more than the difference of the default leaving water temperature and the preset temperature deviation and less than or equal to institute
When stating default leaving water temperature and the preset temperature deviation sum, the frequency of the frequency conversion fan in the refrigerant circulation is constant.
A kind of 15. refrigeration control devices, it is characterised in that including：
First acquisition module, for obtaining the current state of compression mechanism SAPMAC method and the current shape of refrigerated medium pump kind of refrigeration cycle
State；
First control module, for according to the outdoor environment temperature for detecting and actual leaving water temperature and the institute of evaporator (50)
The current state of the current state and the refrigerated medium pump kind of refrigeration cycle of stating compression mechanism SAPMAC method controls the compressor cooling
Circulation and/or the refrigerated medium pump kind of refrigeration cycle；
First judge module, for judging the actual leaving water temperature whether more than or equal to standby temperature；
First performing module, for when the actual leaving water temperature is more than or equal to the standby temperature, described in now
The working condition of the working condition of compression mechanism SAPMAC method and the refrigerated medium pump kind of refrigeration cycle updates the compressor cooling and follows
The current state of the current state of ring and the refrigerated medium pump kind of refrigeration cycle.
16. refrigeration control devices according to claim 15, it is characterised in that also include：
Second performing module, for when the actual leaving water temperature is less than the standby temperature, closing the compressor cooling
Circulation and the refrigerated medium pump kind of refrigeration cycle.
17. refrigeration control devices according to claim 15, it is characterised in that first control module also includes：
First judging unit, for judging the outdoor environment temperature whether more than the first preset temperature and the outdoor environment temperature
Whether the difference of degree and the actual leaving water temperature is less than or equal to the second preset temperature, and first preset temperature is less than described second
Preset temperature；
First execution unit, for being more than first preset temperature and the outdoor environment temperature when the outdoor environment temperature
And when the difference of the actual leaving water temperature is less than or equal to second preset temperature, the compression mechanism SAPMAC method and the refrigeration
Agent pump kind of refrigeration cycle is freezed.
18. refrigeration control devices according to claim 17, it is characterised in that first control module also includes：
Second judging unit, for being more than first preset temperature and the outdoor environment temperature when the outdoor environment temperature
And when the difference of the actual leaving water temperature is more than second preset temperature, judge that the outdoor environment temperature actually goes out with described
Whether the difference of coolant-temperature gage is more than the 3rd preset temperature, and the 3rd preset temperature is more than second preset temperature；
Second execution unit, presets for the difference when the outdoor environment temperature and the actual leaving water temperature more than the described 3rd
During temperature, the compression mechanism SAPMAC method is freezed, and the refrigerated medium pump kind of refrigeration cycle stops refrigeration.
19. refrigeration control devices according to claim 18, it is characterised in that first control module also includes：
3rd execution unit, presets for the difference when the outdoor environment temperature and the actual leaving water temperature more than described second
Temperature and during less than or equal to three preset temperature, the compression mechanism SAPMAC method is freezed, the refrigerated medium pump refrigeration
The working condition of circulation is the current state of the refrigeration pump circulation.
20. refrigeration control devices according to claim 17, it is characterised in that first control module also includes：
3rd judging unit, for being less than or equal to first preset temperature and the outdoor environment when the outdoor environment temperature
When the difference of temperature and the actual leaving water temperature is less than or equal to second preset temperature, whether the outdoor environment temperature is judged
Less than or equal to the 4th preset temperature, the 4th preset temperature is less than first preset temperature；
4th execution unit, for when the outdoor environment temperature be less than or equal to four preset temperature when, the compressor
Kind of refrigeration cycle stops refrigeration, and the refrigerated medium pump kind of refrigeration cycle is freezed.
21. refrigeration control devices according to claim 20, it is characterised in that first control module also includes：
5th execution unit, for being preset less than or equal to first preset temperature and more than the described 4th when the outdoor temperature
During temperature, the working condition of the compression mechanism SAPMAC method is the current state of the compression mechanism SAPMAC method, the refrigerant
Pump kind of refrigeration cycle is freezed.
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