CN105509356B - Water installations of freezing and its refrigeration system and refrigerating method - Google Patents
Water installations of freezing and its refrigeration system and refrigerating method Download PDFInfo
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- CN105509356B CN105509356B CN201610037789.7A CN201610037789A CN105509356B CN 105509356 B CN105509356 B CN 105509356B CN 201610037789 A CN201610037789 A CN 201610037789A CN 105509356 B CN105509356 B CN 105509356B
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- 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
- F25B49/022—Compressor control arrangements
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of refrigeration systems for water installations of freezing, the refrigeration system includes compressor, condenser, throttle part, evaporator, the first temperature detector and controller, wherein, the escape pipe of compressor and one end of condenser connect, and the other end of condenser and one end of throttle part connect；Evaporator includes refrigerant inlet, refrigerant exit, inlet and outlet, the other end of refrigerant inlet and throttle part connects, the muffler of refrigerant exit and compressor connects, and water inlet is suitable for being connected with water source, and water outlet is suitable for connecting with the outlet pipe of refrigeration water installations；The muffler of first temperature detector and compressor connects, the suction temperature for detecting compressor；Controller is connect with the first temperature detector and compressor respectively, and controller controls compressor according to suction temperature.The refrigeration system can be to avoid the water freezing in heat exchanger when water installations of freezing produce cold water.The invention also discloses a kind of refrigeration water installations and refrigerating methods.
Description
Technical field
The invention belongs to the technical field of electrical appliances manufacturing more particularly to a kind of refrigeration systems and refrigeration for water installations of freezing
Method, and the refrigeration water installations using the refrigeration system.
Background technology
Usually, when carrying out quickly producing the cold water of lower temperature using heat exchanger such as double pipe heat exchanger, lead to
The outer wall setting temperature sensor for often flowing through the pipeline of water in a heat exchanger, still, since compressor is past from be switched on to shutting down
Toward the time of only a few minutes, and stainless steel heat exchanger, that is, double-tube heat exchanger outer tube wall temperature is detected very by temperature sensor
The difficult temperature for inducing water in double pipe heat exchanger in a short time, that is, temperature detection deviation are big, thus are producing cold water
Shi Changchang can cause refrigeration so that the water in heat exchanger is easy to freeze, and flow is caused not go out, and influences user's use.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention needs
It is proposed that a kind of refrigeration system for water installations of freezing, the refrigeration system can be to avoid heat when water installations of freezing produce cold water
Water freezing in exchanger.
The present invention also proposes a kind of refrigerating method of refrigeration water installations and the water refrigeration system using the refrigeration system.
To solve the above problems, one aspect of the present invention proposes a kind of refrigeration system for water installations of freezing, the refrigeration system
System includes：Compressor, condenser and throttle part, the escape pipe of the compressor is connect with one end of the condenser, described
The other end of condenser is connect with one end of the throttle part；Evaporator, the evaporator include that refrigerant inlet, refrigerant go out
Mouth, inlet and outlet, the refrigerant inlet are connect with the other end of the throttle part, the refrigerant exit and the pressure
The muffler of contracting machine connects, the water inlet is suitable for being connected with water source, and the water outlet is suitable for going out with the water installations of freezing
Water pipe connects；First temperature detector, first temperature detector is connect with the muffler of the compressor, for detecting
State the suction temperature of compressor；Controller, the controller are connect with first temperature detector and the compressor respectively,
The controller controls the compressor according to the suction temperature.
Refrigeration system according to the present invention detects the suction temperature of compressor by the first temperature detector, relative to root
Compressor is controlled according to the temperature of evaporator, controller controls the start and stop of compressor according to suction temperature, can be in evaporator
Compressor is controlled before water freezing to stop, and was avoided the occurrence of refrigeration and was caused the water freezing in evaporator, and met the cold water of user
Use demand.
Further, the muffler of the compressor includes U-tube, and the U-tube connects with first temperature detector
It connects, first temperature detector is for detecting the tube wall temperature of the U-tube to obtain the suction temperature, by detecting U
Type pipe can be to avoid the frequent start-stop of compressor.
Specifically, the U-tube includes copper U-tube, and copper U-tube outside wall temperature is detected by the first temperature detector
To obtain suction temperature, temperature detection is more accurate.
In some embodiments of the invention, above system further includes：Second temperature detector, the second temperature detection
Device is connect with the evaporator and the controller respectively, and the second temperature detector is used to detect the temperature of the evaporator
Degree, the controller are additionally operable to control the compression according to the temperature that the suction temperature and the second temperature detector detect
Machine.
Above system further includes filter, and the filter is set to the other end of the condenser and the throttle part
One end between.
Based on above-mentioned refrigeration system, another aspect of the present invention proposes a kind of refrigeration water installations, which includes upper
State the refrigeration system.
Refrigeration water installations according to the present invention can be made by using the refrigeration system of above-mentioned aspect embodiment to avoid crossing
It is cold and cause cold water icing cannot flow out, meet the cold water use demand of user.
To solve the above problems, further aspect of the present invention also proposes a kind of refrigerating method based on the refrigeration system,
The refrigerating method includes the following steps：Controller controls the suction temperature of the first temperature detector detection compressor；And it is described
Controller controls the compressor according to the suction temperature.
Refrigerating method according to the present invention detects the suction temperature of compressor by the first temperature detector, relative to root
Compressor is controlled according to the temperature of evaporator, controller controls the start and stop of compressor according to suction temperature, can be in evaporator
Compressor is controlled before water freezing to stop, and was avoided the occurrence of refrigeration and was caused the water freezing in evaporator, and met the cold water of user
Use demand.
Further, the muffler of the compressor includes U-tube, and first temperature detector is for detecting the U
The tube wall temperature of type pipe, can be to avoid the frequent start-stop of compressor by U-tube to obtain the suction temperature.
In some embodiments of the invention, the refrigeration system further includes second temperature detector, the refrigerating method
Further include：The controller controls the temperature of the second temperature detector detection evaporator；The controller is returned according to described
Temperature degree and the temperature of second temperature detector detection control the compressor.
Further, the controller is controlled according to the temperature that the suction temperature and the second temperature detector detect
The compressor specifically includes：The controller calculates the temperature of the suction temperature and second temperature detector detection
Mean temperature；If the mean temperature is more than the first temperature threshold, the controller controls the compressor and opens；If
The mean temperature is less than or equal to second temperature threshold value, then the controller controls the compressor shutdown.
Description of the drawings
Fig. 1 is the schematic diagram of the refrigeration system according to an embodiment of the invention for water installations of freezing；
Fig. 2 is the schematic diagram of the refrigeration system for water installations of freezing according to another embodiment of the invention；
Fig. 3 is the schematic diagram of the refrigeration system for water installations of freezing according to still a further embodiment；
Fig. 4 is the block diagram of refrigeration water installations according to an embodiment of the invention；
Fig. 5 is the flow chart of refrigerating method according to an embodiment of the invention；And
Fig. 6 is the flow chart of refrigerating method according to another embodiment of the invention.
Reference numeral：
Refrigeration water installations 1000,
Refrigeration system 100 includes compressor 10, condenser 20, throttle part 30, evaporator 40, the first temperature detector 50
It (is not indicated in figure) with controller, U-tube 60, second temperature detector 70, filter 80,
Refrigerant inlet 1, refrigerant exit 2.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The refrigeration system for the water installations that are used to freeze for describing to propose according to embodiments of the present invention with reference to the accompanying drawings and use
The refrigerating method of the refrigeration water installations and the refrigeration system of the refrigeration system.
The refrigeration system for water installations of freezing of the embodiment of the present invention is illustrated first.
Fig. 1 is the block diagram of the refrigeration system according to an embodiment of the invention for water installations of freezing, such as Fig. 1 institutes
Show, which includes compressor 10, condenser 20, throttle part 30, evaporator 40,50 and of the first temperature detector
Controller (does not indicate) in figure.
Wherein, the escape pipe of compressor 10 is connect with one end of condenser 20, the other end and throttle part of condenser 20
One end of 30 such as capillaries connects.
Evaporator 40 (is not marked including refrigerant inlet 1, refrigerant exit 2, water inlet (not indicated in figure) and water outlet in figure
Show), refrigerant inlet 1 is connect with the other end of throttle part 30, and refrigerant exit 2 is connect with the muffler of compressor 10, water inlet
Suitable for being connected with water source, water outlet is suitable for connecting with the outlet pipe of refrigeration water installations.
The high pressure gas that compressor 10 is discharged is transformed to highly pressurised liquid into the cooling of condenser 20 is crossed, using throttle part 30
Such as the reducing pressure by regulating flow of capillary becomes the liquid of low pressure, becomes the gas of low pressure, and then quilt by the heat exchange of evaporator 40
Compressor 10 sucks, and carries out the gas for being collapsed into high pressure again, recycles repeatedly.In evaporator 40, water is by low pressure
Liquid refrigerants absorbs heat, and the temperature of water constantly reduces, achievees the purpose that produce cold water calmly.
During when user takes cold water, i.e. refrigeration water installations constantly discharge water, water base in evaporator 40 will not tie
Ice.But when energization and user do not take cold water, refrigeration system 100 is when being freezed, if using in the related technology
The mode that temperature sensor is attached to the outer tube wall of evaporator 40 detects the temperature of water to control compressor, is with double pipe heat exchanger
Example, refrigerant are flowed in interior conduit, and water is flowed in external pipe, and water is obtained by detecting the temperature of outer wall of double pipe heat exchanger
Temperature may be caused compressor 10 excessively to freeze, be led to the water freezing in evaporator 40 due to detection temperature lag, inaccuracy,
It cannot be flowed out when user is using cold water, influence user's use.
And the first temperature detector 50 of the refrigeration system 100 of the embodiment of the present invention is connect with the muffler of compressor 10,
First temperature detector 50 is used to detect the suction temperature of compressor 10.Controller respectively with the first temperature detector 50 and compression
Machine 10 connects, and then controller controls compressor 10 according to suction temperature.For example, the return air temperature of the first temperature detector 50 detection
Degree is T, works as T>When T1, controller controls compressor 10 and opens, and as T≤T2, controller controls compressor 10 and shuts down, intelligent
Ground controls compressor 10 and runs, wherein T1 and T2 can be the upper limit detected value and lower limit detected value of the first temperature detector 50.
Wherein, user do not take cold water freeze water installations do not discharge water freeze when, when water temperature drop is near 0 DEG C
When, the suction temperature of compressor 10 is slightly below water temperature, and in other words, controller controls compressor 10 according to suction temperature,
When suction temperature reaches 0 DEG C and the water temperature in evaporator 40 has not yet been reached 0 DEG C, i.e., the water temperature in evaporator 40 reach 0 DEG C it
Before can stop freezing, so as to avoid water freezing in evaporator 40.
As can be seen that the refrigeration system 100 for water installations of freezing of the embodiment of the present invention, passes through the first temperature detector
The suction temperature of 50 detection compressors 10 controls compressor 10 with respect to the temperature of evaporator 40, and controller is according to return-air
Temperature controls the start and stop of compressor 10, and the stopping of compressor 10 can be controlled before the water freezing in evaporator 40, is avoided the occurrence of
It crosses refrigeration and causes the water freezing in evaporator 40, meet the cold water use demand of user.
Further, after the shutdown of compressor 10, suction temperature rises quickly, and then controller control compressor 10 opens
It is dynamic, lead to 10 frequent starting of compressor, 10 service life of compressor can be damaged.In one embodiment of the invention, as shown in Fig. 2,
Increase U-tube 60 in the muffler of compressor 10, U-tube 60 is connect with the first temperature detector 50, the first temperature detector 50
For detecting the tube wall temperature of U-tube 60 to obtain suction temperature.After the shutdown of compressor 10, the bottom of U-tube 60 can deposit
Operative liquid refrigerant is stayed, the speed of suction temperature rising can be slowed down, available machine time interval increases compressor 10 again, Ke Yi
Compressor 10 is protected to a certain extent.It needs to increase refrigerant punching note and needs return line it should be noted that increasing U-tube 60
There are higher insulation levels.
In one particular embodiment of the present invention, U-tube 60 includes copper U-tube.Usually, evaporator 40 is stainless
Steel material, copper pipe heat transfer ratio stainless steel faster, and relative to passing through the outer of the evaporator 40 for detecting stainless steel in the related technology
The temperature that wall temperature obtains water is compared, and the temperature of the tube wall of copper U-tube is detected by the first temperature detector 50 to be returned
Temperature degree, detection temperature is more accurate, and then controller controls compressor 10 according to suction temperature, therefore can be in evaporator 40
Water freezing before control compressor 10 be stopped.
In addition, in one embodiment of the invention, as shown in figure 3, above-mentioned refrigeration system 100 further includes second temperature inspection
Device 70 is surveyed, second temperature detector 70 is connect with evaporator 40 and controller respectively, and second temperature detector 70 is steamed for detecting
The temperature of device 40 is sent out, usually, second temperature detector 70 detects the temperature of 40 outer wall of evaporator to obtain the temperature of water, controls
Device is additionally operable to control compressor 10 according to the temperature that suction temperature and second temperature detector 70 detect.For example, the first temperature is examined
It is T01 to survey the suction temperature that device 50 detects, and the temperature for the evaporator 40 that second temperature detector 70 detects is T02, as (T01+
T02)/2>When T3, controller controls compressor 10 and opens, and as (T01+T02)/2≤T4, controller control compressor 10 stops
Machine realizes that intelligently control compressor 10 is run, wherein T3 and T4 can be set as the case may be.
Specifically, it is being made using the temperature for detecting suction temperature and evaporator 40 simultaneously to control the start and stop of compressor 10
In the process of refrigerastion that water-cooling device constantly discharges water, water base in evaporator 40 will not freeze.Cold water is not taken in user and
When refrigeration system 100 is freezed, when actual water temperature drops to 0 DEG C nearby, suction temperature is more slightly lower than actual water temperature, so logical
It crosses detection suction temperature and for example detects the temperature of 60 outer wall of U-tube and the temperature such as stainless steel sleeve tubular type heat exchanger of evaporator 40
Outside wall temperature is feasible come the start and stop for controlling compressor 10.After the shutdown of compressor 10, the bottom on U-tube road can retention portion
Point liquid refrigerants, can slow down the rate of climb of suction temperature, since cold water stores a large amount of cold, in 40 temperature of evaporator
The mean temperature for also rising and slowly taking the two is risen, the rising of temperature, compressor 10 can be delayed to be unlikely to frequent starting.
As shown in Fig. 1 or 2 or 3, which further includes filter 80, and filter 80 is set to condenser 20
Between the other end and one end of throttle part 30.
It in practice, can be by compressor 10, condenser 20, filter 80, throttle part 30 such as capillary and evaporation
Such as double pipe heat exchanger of device 40 is welded into a closed system by copper pipe.
In conclusion the refrigeration system 100 for water installations of freezing of the embodiment of the present invention, for directly measurement cold water temperature
Degree is had any problem, then measure U-tube 60 suction temperature or using at the same measure the suction temperature and evaporator 40 of U-tube
Temperature controls the start and stop of compressor 10, can cause water freezing in evaporator 40 to avoid refrigeration is crossed, to meet user's cold water make
With demand, and the frequent starting of compressor 10 is avoided, protects compressor 10.The refrigeration system 100 of the embodiment of the present invention is being produced
Effect is preferable when such as 7 DEG C of low temperature and the cold water of following temperature.
Based on the refrigeration system of above-mentioned aspect embodiment, another aspect of the present invention embodiment proposes a kind of refrigeration water installations.
Fig. 4 is according to the block diagram of the refrigeration water installations of one embodiment of the present of invention, as shown in figure 4, the refrigeration water installations
1000 include the refrigeration system 100 of above-mentioned aspect embodiment.
The refrigeration water installations 1000 of the embodiment of the present invention can be with by using the refrigeration system 100 of above-mentioned aspect embodiment
It avoided freezing and causing cold water icing that cannot flow out, and met the cold water use demand of user.
Based on the refrigeration system of above-mentioned aspect embodiment, further aspect of the present invention embodiment proposes a kind of above-mentioned refrigeration system
Refrigerating method.
Fig. 5 is according to the flow chart of the refrigerating method of one embodiment of the present of invention, as shown in figure 5, the refrigerating method packet
Include following steps：
S1, controller control the suction temperature of the first temperature detector detection compressor.
S2, controller control compressor according to suction temperature.
For example, the suction temperature of the first temperature detector detection is T, work as T>When T1, controller controls compressor and opens, when
When T≤T2, controller controls compressor shutdown, intelligently controls compressor operating, wherein T1 and T2 can be the first temperature
The upper limit detected value and lower limit detected value of detector.
Wherein, user do not take cold water freeze water installations do not discharge water freeze when, when water temperature drop is near 0 DEG C
When, the suction temperature of compressor is slightly below water temperature, and in other words, controller controls compressor according to suction temperature, in return-air
When temperature reaches 0 DEG C and the water temperature in evaporator has not yet been reached 0 DEG C, i.e., the water temperature in evaporator can stop before reaching 0 DEG C
Only freeze, so as to avoid water freezing in evaporator.
As can be seen that the refrigerating method of the embodiment of the present invention, the return air temperature of compressor is detected by the first temperature detector
Degree controls compressor with respect to the temperature of evaporator, and controller controls the start and stop of compressor, Ke Yi according to suction temperature
Compressor is controlled before water freezing in evaporator to stop, and was avoided the occurrence of refrigeration and was caused the water freezing in evaporator, and met
The cold water use demand of user.
Further, after compressor shutdown, suction temperature rises quickly, and then controller controls compressor start,
Cause high frequent to start, the compressor service life can be damaged.In one embodiment of the invention, the muffler of compressor includes
U-tube, the first temperature detector is for detecting the tube wall temperature of U-tube to obtain suction temperature.After compressor shutdown, U
The bottom of type pipe can retain operative liquid refrigerant, can slow down the speed of suction temperature rising, compressor is again between the available machine time
Every increase, compressor can be protected to a certain extent.It needs to increase refrigerant punching note and need it should be noted that increasing U-tube
Return line is wanted there are higher insulation levels.
In addition, in one embodiment of the invention, refrigeration system further includes second temperature detector, as shown in fig. 6, on
Stating refrigerating method further includes：
S3, controller control the temperature of second temperature detector detection evaporator.
S4, controller control compressor according to the temperature that suction temperature and second temperature detector detect.
Specifically, controller calculates the mean temperature of the temperature of suction temperature and the detection of second temperature detector；If flat
Equal temperature is more than the first temperature threshold, then controller control compressor is opened；If mean temperature is less than or equal to second temperature
Threshold value, then controller control compressor shutdown.For example, not taking cold water in user and when refrigeration system is freezed, work as reality
Border water temperature drop to 0 DEG C nearby when, suction temperature is more slightly lower than actual water temperature, thus by detect suction temperature for example detect it is U-shaped
The temperature of pipe outer wall and the temperature of evaporator such as stainless steel sleeve tubular type heat exchanger outside wall temperature are come the start and stop for controlling compressor
It is feasible.After compressor shutdown, the bottom on U-tube road can retain operative liquid refrigerant, can slow down the upper of suction temperature
Lifting speed, since cold water stores a large amount of cold, evaporator temperature rises the mean temperature for also rising and slowly taking the two, can
To delay the rising of temperature, compressor to be unlikely to frequent starting.
The refrigerating method of embodiment of the present invention effect when producing the cold water of such as 7 DEG C of low temperature and following temperature is preferable.
In the description of this explanation, any process described otherwise above or method description can be in flow chart or herein
It is understood to, expression includes the steps that one or more generations for realizing specific logical function or the executable instruction of process
Module, segment or the part of code, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press
Sequence that is shown or discussing, include according to involved function by it is basic and meanwhile in the way of or in the opposite order, to execute
Function, this should be understood by the embodiment of the present invention person of ordinary skill in the field.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system of such as computer based system including processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicating, propagating or passing
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (8)
1. a kind of refrigeration system for water installations of freezing, which is characterized in that including：
Compressor, condenser and throttle part, the escape pipe of the compressor are connect with one end of the condenser, the condensation
The other end of device is connect with one end of the throttle part；
Evaporator, the evaporator include refrigerant inlet, refrigerant exit, inlet and outlet, the refrigerant inlet with it is described
The other end of throttle part connects, and the refrigerant exit is connect with the muffler of the compressor, and the water inlet is suitable for and water
Source is connected, and the water outlet is suitable for connecting with the outlet pipe of the refrigeration water installations；
First temperature detector, first temperature detector is connect with the muffler of the compressor, for detecting the pressure
The suction temperature of contracting machine, wherein the muffler of the compressor includes U-tube, the U-tube and first temperature detector
Connection, first temperature detector is for detecting the tube wall temperature of the U-tube to obtain the suction temperature；And control
Device, the controller are connect with first temperature detector and the compressor respectively, and the controller is according to the return-air
Temperature controls the compressor.
2. the refrigeration system as described in claim 1 for water installations of freezing, which is characterized in that the U-tube includes copper U
Type pipe.
3. the refrigeration system as claimed in claim 1 or 2 for water installations of freezing, which is characterized in that further include：
Second temperature detector, the second temperature detector are connect with the evaporator and the controller respectively, and described
Two temperature detectors are used to detect the temperature of the evaporator, and the controller is additionally operable to according to the suction temperature and described the
The temperature of two temperature detectors detection controls the compressor.
4. the refrigeration system as described in claim 1 for water installations of freezing, which is characterized in that further include：
Filter, the filter are set between the other end of the condenser and one end of the throttle part.
5. a kind of refrigeration water installations, which is characterized in that including refrigeration system according to any one of claims 1-4.
6. a kind of refrigerating method based on refrigeration system described in claim 1, which is characterized in that include the following steps：
Controller controls the suction temperature of the first temperature detector detection compressor, wherein the muffler of the compressor includes U
Type pipe, first temperature detector is for detecting the tube wall temperature of the U-tube to obtain the suction temperature；And
The controller controls the compressor according to the suction temperature.
7. the refrigerating method of refrigeration system as claimed in claim 6, feature is for fear of the refrigeration system further includes second
Temperature detector, the refrigerating method further include：
The controller controls the temperature of the second temperature detector detection evaporator；And
The controller controls the compressor according to the temperature that the suction temperature and the second temperature detector detect.
8. the refrigerating method of refrigeration system as claimed in claim 7, which is characterized in that the controller is according to the return air temperature
Degree and the temperature of second temperature detector detection control the compressor and specifically include：
The controller calculates the mean temperature of the temperature of the suction temperature and second temperature detector detection；
If the mean temperature is more than the first temperature threshold, the controller controls the compressor and opens；And if
The mean temperature is less than or equal to second temperature threshold value, then the controller controls the compressor shutdown.
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| CN201610037789.7A CN105509356B (en) | 2016-01-20 | 2016-01-20 | Water installations of freezing and its refrigeration system and refrigerating method |
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| CN201610037789.7A CN105509356B (en) | 2016-01-20 | 2016-01-20 | Water installations of freezing and its refrigeration system and refrigerating method |
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| CN105509356B true CN105509356B (en) | 2018-07-13 |
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| CN106288205A (en) * | 2016-08-19 | 2017-01-04 | 芜湖美智空调设备有限公司 | Air-conditioner and control method thereof |
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| CN205536636U (en) * | 2016-01-20 | 2016-08-31 | 佛山市顺德区美的饮水机制造有限公司 | Refrigeration water installation and refrigerating system thereof |
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| CN104949376A (en) * | 2015-06-02 | 2015-09-30 | 广东美的暖通设备有限公司 | Multi-split system and control method |
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| CN105091387A (en) * | 2015-09-30 | 2015-11-25 | 黄石东贝制冷有限公司 | Efficient refrigerating system |
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