CN106686948A - Refrigerant heat dissipation apparatus and control method therefor - Google Patents
Refrigerant heat dissipation apparatus and control method therefor Download PDFInfo
- Publication number
- CN106686948A CN106686948A CN201611264435.2A CN201611264435A CN106686948A CN 106686948 A CN106686948 A CN 106686948A CN 201611264435 A CN201611264435 A CN 201611264435A CN 106686948 A CN106686948 A CN 106686948A
- Authority
- CN
- China
- Prior art keywords
- temperature
- refrigerant
- radiating subassembly
- dew
- current temperatures
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20354—Refrigerating circuit comprising a compressor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
Abstract
The invention discloses a refrigerant heat dissipation apparatus and a control method therefor. The refrigerant heat dissipation apparatus comprises a compressor, an outdoor heat exchanger, a throttling assembly and a refrigerant heat dissipation assembly, wherein an exhaust port of the compressor is connected with one end of the outdoor heat exchanger; the other end of the outdoor heat exchanger is connected with the inlet of the refrigerant heat dissipation assembly through the throttling assembly; the throttling assembly comprises a throttling element and a bypass element which are connected in parallel; the control method comprises the following steps of controlling the refrigerant heat dissipation apparatus to run in a refrigeration mode, obtaining a dew point temperature around the refrigerant heat dissipation assembly and obtaining a current temperature of the refrigerant heat dissipation assembly; and controlling the throttling assembly according to the dew point temperature and the current temperature of the refrigerant heat dissipation assembly so as to maintain the temperature of the refrigerant heat dissipation assembly to be greater than the dew point temperature. Therefore, damage of the surface of an electric control panel caused by dew formation due to an over-low temperature of the refrigerant heat dissipation assembly can be effectively prevented.
Description
Technical field
The present invention relates to Oil Temperature Controlling Technigue field, the more particularly to a kind of control method and one kind of refrigerant heat abstractor
Refrigerant heat abstractor.
Background technology
Generally, electric-controlled plate can operationally produce substantial amounts of heat, high particularly with the speed of service, or comprising high-power mould
For the electric-controlled plate of block, if radiating may cause electric-controlled plate to damage not in time, the safety in utilization and reliability of electric-controlled plate are influenceed
Property.
In correlation technique, have electric-controlled plate is radiated using fan, fin etc., also have using the refrigerant type of cooling pair
Electric-controlled plate is radiated, wherein, when being radiated using the refrigerant type of cooling, although radiating effect is relatively good, but it is easy to
Appearance causes electric-controlled plate surface sweating because refrigerant temperature is too low, and then causes the problem of electric-controlled plate damage.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of control method of refrigerant heat abstractor, enabling to refrigerant
The temperature of radiating subassembly is remained at more than dew-point temperature, so as to effectively prevent from causing because the temperature of refrigerant radiating subassembly is too low
Electric-controlled plate surface sweating is damaged.
Another object of the present invention is to propose a kind of refrigerant heat abstractor.
To achieve the above object, one aspect of the present invention embodiment proposes a kind of control method of refrigerant heat abstractor, institute
Stating refrigerant heat abstractor includes compressor, outdoor heat exchanger, orifice union and refrigerant radiating subassembly, the exhaust outlet of the compressor
One end with the outdoor heat exchanger is connected, and the other end of the outdoor heat exchanger is dissipated by the orifice union with the refrigerant
The entrance of hot component is connected, and the orifice union includes restricting element and bypass elements in parallel, and methods described includes following step
Suddenly：S1, controls the refrigerant heat abstractor to run in a chiller mode, and obtain the dew point temperature around the refrigerant radiating subassembly
Degree, and obtain the Current Temperatures of the refrigerant radiating subassembly；S2, according to the dew-point temperature and the refrigerant radiating subassembly
Current Temperatures are controlled to the orifice union so that the temperature of the refrigerant radiating subassembly be maintained at the dew-point temperature with
On.
The control method of refrigerant heat abstractor according to embodiments of the present invention, in control refrigerant heat abstractor in a chiller mode
During operation, the dew-point temperature around refrigerant radiating subassembly is obtained, while obtaining the Current Temperatures of refrigerant radiating subassembly, then, root
Orifice union is controlled according to the Current Temperatures of dew-point temperature and refrigerant gallbladder-heat component, so that the temperature of refrigerant radiating subassembly is protected
Hold more than dew-point temperature, so as to effectively prevent from causing electric-controlled plate surface sweating to damage because the temperature of refrigerant radiating subassembly is too low.
According to one embodiment of present invention, when the orifice union includes first throttle element and the first bypass elements
When, the step S2 includes：Whether S21, judge the Current Temperatures less than or equal to the dew-point temperature and the first preset temperature
Between difference and continue the first Preset Time；S22, if it is, controlling the aperture of the first throttle element to tune up first
Default aperture, and after the Preset Time of time delay second, step S21 is repeated, until the aperture of the first throttle element is adjusted
Big extremely default maximum opening；S23, if it is not, then the first throttle element is controlled according to normal control mode, and
First bypass elements are controlled to be closed.
According to one embodiment of present invention, when the aperture of the first throttle element is tuned up to default maximum opening
When, also include：S221, judge the Current Temperatures whether less than or equal to the dew-point temperature and the second preset temperature sum and
Continue first Preset Time；S222, if it is, controlling the first throttle element to keep the default maximum opening
It is constant, and control first bypass elements to be in opening.
According to one embodiment of present invention, after step S222, also include：S223, judges that the Current Temperatures are
It is no more than or equal to the dew-point temperature and the 3rd preset temperature sum and to continue first Preset Time, wherein, the described 3rd
Preset temperature is more than second preset temperature；S224, if it is, controlling the first throttle element to keep described default
Whether maximum opening is constant, and controls first bypass elements to be closed, and determines whether the Current Temperatures
More than or equal to the dew-point temperature and the 4th preset temperature sum and lasting first Preset Time, wherein, the described 4th is pre-
If temperature is more than the 3rd preset temperature；S225, if it is, entering to the first throttle element according to normal control mode
Row control, and control first bypass elements to be closed.
According to one embodiment of present invention, the Current Temperatures are inlet temperature or the institute of the refrigerant radiating subassembly
The outlet temperature of refrigerant radiating subassembly is stated, wherein, when the inlet temperature that the Current Temperatures are the refrigerant radiating subassembly, institute
The second preset temperature is stated less than zero；When the outlet temperature that the Current Temperatures are the refrigerant radiating subassembly, described second is pre-
If temperature is more than zero.
To achieve the above object, another aspect of the present invention embodiment proposes a kind of refrigerant heat abstractor, including：Compression
Machine；Outdoor heat exchanger；Orifice union, the orifice union includes restricting element and bypass elements in parallel；Refrigerant radiating subassembly,
The exhaust outlet of the compressor is connected with one end of the outdoor heat exchanger, and the other end of the outdoor heat exchanger passes through the section
Stream component is connected with the entrance of the refrigerant radiating subassembly；Control module, the control module is used to control the refrigerant to radiate
Device runs in a chiller mode, and obtains the dew-point temperature around the refrigerant radiating subassembly, and obtains the refrigerant radiating
The Current Temperatures of component, and the orifice union is entered according to the Current Temperatures of the dew-point temperature and the refrigerant radiating subassembly
Row control, so that the temperature of the refrigerant radiating subassembly is maintained at more than the dew-point temperature.
Refrigerant heat abstractor according to embodiments of the present invention, control module control refrigerant heat abstractor is transported in a chiller mode
OK, and the dew-point temperature around refrigerant radiating subassembly is obtained, while the Current Temperatures of refrigerant radiating subassembly are obtained, and according to dew point
The Current Temperatures of temperature and refrigerant radiating subassembly are controlled to orifice union, so that the temperature of refrigerant radiating subassembly is maintained at dew
More than point temperature, so as to effectively prevent from causing electric-controlled plate surface sweating to damage because the temperature of refrigerant radiating subassembly is too low.
According to one embodiment of present invention, when the orifice union includes first throttle element and the first bypass elements
When, the control module is carried out according to the Current Temperatures of the dew-point temperature and the refrigerant radiating subassembly to the orifice union
During control, wherein, whether the control module judges the Current Temperatures less than or equal to the dew-point temperature and the first default temperature
Difference between degree and continue the first Preset Time；If it is, the control module then controls opening for the first throttle element
Whether degree tunes up the first default aperture, and after the Preset Time of time delay second, judge the Current Temperatures less than or equal to institute again
State the difference between dew-point temperature and the first preset temperature and continue the first Preset Time, until the first throttle element
Aperture is tuned up to default maximum opening；If not, the control module is then according to normal control mode to the first throttle
Element is controlled, and controls first bypass elements to be closed.
According to one embodiment of present invention, when the aperture of the first throttle element is tuned up to default maximum opening
When, the control module also judge the Current Temperatures whether less than or equal to the dew-point temperature and the second preset temperature sum,
And continue first Preset Time；If it is, the control module then controls the first throttle element to keep described default
Maximum opening it is constant, and control first bypass elements be in opening.
According to one embodiment of present invention, the first throttle element is being controlled to keep the default maximum opening not
Become, and control first bypass elements to be in after opening, whether the control module also judges the Current Temperatures
More than or equal to the dew-point temperature and the 3rd preset temperature sum and lasting first Preset Time, wherein, the described 3rd is pre-
If temperature is more than second preset temperature；If it is, the control module then controls the first throttle element to keep described
Default maximum opening is constant, and controls first bypass elements to be closed, and determines whether the current temperature
Whether degree is more than or equal to the dew-point temperature and the 4th preset temperature sum and lasting first Preset Time, wherein, it is described
4th preset temperature is more than the 3rd preset temperature；If it is, the control module is then according to normal control mode to described
First throttle element is controlled, and controls first bypass elements to be closed.
According to one embodiment of present invention, the Current Temperatures are inlet temperature or the institute of the refrigerant radiating subassembly
The outlet temperature of refrigerant radiating subassembly is stated, wherein, when the inlet temperature that the Current Temperatures are the refrigerant radiating subassembly, institute
The second preset temperature is stated less than zero；When the outlet temperature that the Current Temperatures are the refrigerant radiating subassembly, described second is pre-
If temperature is more than zero.
Brief description of the drawings
Fig. 1 is the flow chart of the control method of refrigerant heat abstractor according to embodiments of the present invention；
Fig. 2 is the structural representation of refrigerant heat abstractor according to an embodiment of the invention；
Fig. 3 is the structural representation of refrigerant heat abstractor in accordance with another embodiment of the present invention；
Fig. 4 is according to a flow chart for the control method of the refrigerant heat abstractor of specific example of the invention；And
Fig. 5 is the flow chart of the control method of the refrigerant heat abstractor according to another specific example of the invention.
Reference：
Compressor 10, outdoor heat exchanger 20, orifice union 30, refrigerant radiating subassembly 40, the radiating of refrigerant radiating tube 41, refrigerant
Module 42, control module 50, oil eliminator 60, four-way valve 70, first throttle element EXV and the first bypass elements SV.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The control method and refrigerant of the refrigerant heat abstractor of proposition according to embodiments of the present invention described with reference to the accompanying drawings
Heat abstractor.
Fig. 1 is the flow chart of the control method of refrigerant heat abstractor according to embodiments of the present invention.
In an embodiment of the present invention, refrigerant heat abstractor may include compressor, outdoor heat exchanger, orifice union and refrigerant
Radiating subassembly, the exhaust outlet of compressor is connected with one end of outdoor heat exchanger, and the other end of outdoor heat exchanger passes through orifice union
Entrance with refrigerant radiating subassembly is connected, and orifice union may include the restricting element and bypass elements of parallel connection.
As shown in figure 1, the control method of the refrigerant heat abstractor may include following steps：
S1, control refrigerant heat abstractor runs in a chiller mode, and obtains the dew-point temperature around refrigerant radiating subassembly, with
And obtain the Current Temperatures of refrigerant radiating subassembly.
Specifically, can by Temperature Humidity Sensor detect refrigerant radiating subassembly around environment temperature and ambient humidity, so
Afterwards according to the environment temperature and ambient humidity of detection, the dew-point temperature around refrigerant radiating subassembly is obtained by computation of table lookup；Or
Person, detects the environment temperature around refrigerant radiating subassembly, then according to refrigerant heat abstractor region by temperature sensor
General environment humidity and detection environment temperature, by computation of table lookup obtain refrigerant radiating subassembly around dew-point temperature.
For example, being by the maximum that experiment test obtains the long-term general environment humidity in refrigerant heat abstractor region
75%, then the ambient humidity of refrigerant heat abstractor region (can be typically chosen somewhat severe feelings with value as 80%
Condition), also, when detection refrigerant radiating subassembly around environment temperature be 10 DEG C when, by look-up table 1 can obtain refrigerant dissipate
Dew-point temperature around hot component is 6.7 DEG C.
Table 1
In addition, in actual applications, refrigerant radiating subassembly may include refrigerant radiating tube and refrigerant radiating module, refrigerant radiating
Module is arranged on refrigerant radiating tube, and one end of refrigerant radiating tube is connected as the entrance of refrigerant radiating subassembly with orifice union,
Wherein, the Current Temperatures of refrigerant radiating subassembly can be the Guan Wen of refrigerant radiating tube.More specifically, as shown in Fig. 2 refrigerant radiates
The Current Temperatures of component can be the inlet temperature TL1, i.e. the inlet temperature TL1 of refrigerant radiating subassembly of refrigerant radiating tube；Or,
As shown in figure 3, the Current Temperatures of refrigerant radiating subassembly can be the outlet temperature TL2 of refrigerant radiating tube, i.e. refrigerant radiating subassembly
Outlet temperature TL2.
S2, the Current Temperatures according to dew-point temperature and refrigerant radiating subassembly are controlled to orifice union.
According to one embodiment of present invention, when orifice union includes first throttle element and the first bypass elements, step
Rapid S2 may include：S21, judges whether Current Temperatures are less than or equal to the difference between dew-point temperature and the first preset temperature and hold
Continuous first Preset Time；S22, if it is, the aperture of control first throttle element tunes up the first default aperture, and in time delay the
After two Preset Times, step S21 is repeated, until the aperture of first throttle element is tuned up to default maximum opening；S23,
If it is not, then being controlled to first throttle element according to normal control mode, and the first bypass elements are controlled to be in closing shape
State.Wherein, the first preset temperature, the first Preset Time, the second Preset Time, the first default aperture and default maximum opening can
Demarcated according to actual conditions, for example, the first default aperture can be 24 steps, default maximum opening can be 480 steps.
Specifically, by taking the refrigerant heat abstractor shown in Fig. 2 as an example, first throttle element is used as main restricting element, Ke Yiwei
Electric expansion valve, the first bypass elements are assistant throttle component, can be magnetic valve.
When needing to use refrigerant heat abstractor to radiate electric-controlled plate etc., by switching over control to four-way valve,
So that refrigerant heat abstractor runs in a chiller mode, meanwhile, according to actual radiating requirements, according to normal control mode to first segment
Fluid element is controlled, and controls the first bypass elements to be closed.Now, from the exhaust outlet of compressor out cold
Matchmaker, passes sequentially through oil eliminator and four-way valve enters outdoor heat exchanger, after heat release in outdoor heat exchanger, by first throttle unit
Enter refrigerant radiating subassembly after part throttling, absorb the heat that electric-controlled plate is distributed, electric-controlled plate is radiated.
In radiation processes, the dew-point temperature TOL around refrigerant radiating subassembly is obtained in real time, and obtain refrigerant radiating subassembly
Inlet temperature TL1, then, judge inlet temperature TL1 whether be less than or equal between dew-point temperature TOL and the first preset temperature
Difference and continue the first Preset Time.If it is, easily there is condensation existing than relatively low in the temperature of explanation refrigerant radiating subassembly
As, now the aperture of first throttle element can be tuned up the first default aperture (such as 24 steps), imitated with the throttling for reducing restricting element
Should, the temperature of refrigerant radiating subassembly is improved, and after the Preset Time of stable operation second, inlet temperature TL1 is judged again whether
Less than or equal to the difference between dew-point temperature TOL and the first preset temperature and continue the first Preset Time.If still less than etc.
In, then continue for the aperture of first throttle element to tune up the first default aperture (such as 24 steps), and after the Preset Time of time delay second,
Judge again ..., repeat, until the aperture of first throttle element is tuned up to default maximum opening.In the process, such as
Fruit inlet temperature TL1 is more than dew-point temperature TOL, or duration of the inlet temperature TL1 less than or equal to dew-point temperature TOL is less than
First Preset Time, then illustrate it is adjusted after, the temperature of refrigerant radiating subassembly has built up, and is not in dew condensation phenomenon, now
Stop that the aperture of first throttle element is carried out tuning up control, and first throttle element is controlled according to normal control mode
System, while controlling the first bypass elements to be closed.
The control method of refrigerant heat abstractor according to embodiments of the present invention, when the temperature of refrigerant radiating subassembly is too low,
Control is tuned up by carrying out aperture to first throttle element, to reduce the restriction effect of first throttle element, so as to improve refrigerant
The inlet temperature of radiating subassembly, it is ensured that the temperature of refrigerant radiating subassembly is maintained more than dew-point temperature, prevents from being led because temperature is too low
Control panel condensation is caused, and then is short-circuited and is burnt out control panel.
Further, according to one embodiment of present invention, when the aperture of first throttle element is tuned up to default maximum
During aperture, also include：S221, judges whether Current Temperatures are less than or equal to dew-point temperature and the second preset temperature sum and continue
First Preset Time；S222, if it is, control first throttle element keeps default maximum opening constant, and controls first
Bypass elements are in opening.Wherein, the second preset temperature can be demarcated according to actual conditions.
That is, when refrigerant radiating subassembly temperature than it is relatively low when, aperture first is carried out to first throttle element and tunes up control
System, to improve the temperature of refrigerant radiating subassembly, but if the aperture of first throttle element has reached default maximum opening, still
Cannot cause that the temperature of refrigerant radiating subassembly, higher than dew-point temperature, now can control first throttle element and be maintained at default maximum
Aperture, while controlling the first bypass elements to be in fully open state, to bypass more high temperature refrigerants to refrigerant radiating subassembly, carries
The inlet temperature of refrigerant radiating subassembly high, it is ensured that the temperature of refrigerant radiating subassembly is maintained more than dew-point temperature, is prevented because of temperature
It is too low to cause control panel to condense, and then be short-circuited and burn out control panel.
It should be noted that in an embodiment of the present invention, because the Current Temperatures of refrigerant radiating subassembly are refrigerant radiating
The inlet temperature or outlet temperature of component, therefore, calculate the difference between the Current Temperatures and dew-point temperature of refrigerant radiating subassembly
Value has a numerical difference, and temperature obtains position difference, and the numerical difference is also different, i.e., the second preset temperature is also different.
According to one embodiment of present invention, when inlet temperature of the Current Temperatures for refrigerant radiating subassembly, second presets
Temperature is less than zero, for example, the second preset temperature can be -2 DEG C；When outlet temperature of the Current Temperatures for refrigerant radiating subassembly,
Second preset temperature is more than zero, for example, the second preset temperature can be 3 DEG C.
The control method of refrigerant heat abstractor according to embodiments of the present invention, when the temperature of refrigerant radiating subassembly is too low,
If first throttle element has been switched on to default maximum opening still causing that the temperature of refrigerant radiating subassembly is higher than dew point
Temperature, then control the first bypass elements to be in opening, further to improve the inlet temperature of refrigerant radiating subassembly, it is ensured that cold
The temperature of matchmaker's radiating subassembly is maintained more than dew-point temperature, prevents from causing control panel to condense because temperature is too low, and then be short-circuited
Burn out control panel.
Further, according to one embodiment of present invention, after step S222, also include：S223, judges current temperature
Whether degree is more than or equal to dew-point temperature and the 3rd preset temperature sum and continues the first Preset Time；S224, if it is, control
First throttle element processed keeps default maximum opening constant, and controls the first bypass elements to be closed, and further
Judge whether Current Temperatures are more than or equal to dew-point temperature and the 4th preset temperature sum and continue the first Preset Time；S225, such as
Fruit is that first throttle element is controlled according to normal control mode then, and controls the first bypass elements to be closed.
Wherein, the 3rd preset temperature and the 4th preset temperature can be demarcated according to actual conditions, and the 3rd preset temperature
More than the second preset temperature, the 4th preset temperature is more than the 3rd preset temperature, for example, the 3rd preset temperature can be second default
Temperature adds the 5th preset temperature, wherein, the 5th preset temperature is the value between 2 DEG C -10 DEG C, and the 4th preset temperature can be the
Two preset temperatures add the 6th preset temperature, wherein, the 6th preset temperature can be the value between 2 DEG C -10 DEG C.
Specifically, default maximum opening is opened into control first throttle element, and is controlled at the first bypass elements
In after fully open state, if inlet temperature TL1 is more than or equal to dew-point temperature TOL and the 3rd preset temperature sum and continues
First Preset Time, then illustrate the temperature of adjusted rear refrigerant radiating subassembly higher than dew-point temperature certain value, now can control the
One bypass elements are closed.After time delay for a period of time, judge inlet temperature TL1 whether more than or equal to dew-point temperature TOL
With the 4th preset temperature sum and continue the first Preset Time.If it is, illustrating that the temperature of current refrigerant radiating subassembly compares
Height, is not in dew condensation phenomenon, can now recover the normal control to first throttle element, while controlling the first bypass elements to protect
Hold in off position, to meet the actual radiating requirements of control panel.
To make those skilled in the art be better understood upon the present invention.Fig. 4 is according to the cold of one specific example of the present invention
The flow chart of the control method of matchmaker's heat abstractor.As shown in figure 4, the control method of the refrigerant heat abstractor may include following step
Suddenly：
S101, control refrigerant heat abstractor runs in a chiller mode.
S102, obtains the inlet temperature TL1 of the dew-point temperature TOL and refrigerant radiating subassembly around refrigerant radiating subassembly.
S103, judge TL1 whether less than or equal to the difference between T0L and the first preset temperature A and continue first it is default when
Between t1.If it is, performing step S105；If not, performing step S104.
S104, first throttle element EXV is normally controlled, and the first bypass elements SV is closed.
S105, the first default aperture P1 is tuned up by the aperture of EXV, and after the second preset time t of time delay 2, return to step
S103, continues to judge.
S106, when the aperture of EXV reaches default maximum opening, after time delay for a period of time, judges whether TL1 is less than
Difference and lasting t1 times in T0L and the second preset temperature A0 (such as 2 DEG C).If it is, performing step S107；If not, performing
Step S108.
S107, EXV keep current maximum opening, SV to open.
S108, after time delay for a period of time, judge TL1 whether more than or equal to T0L and the 3rd preset temperature (A1-A0) sum,
And continue the t1 times.If it is, performing step S109；If not, return to step S106.
S109, EXV keep current maximum opening, SV to close.
S110, after time delay for a period of time, judge TL1 whether more than or equal to T0L and the 4th preset temperature (A2-A0) sum,
And continue the t1 times.If it is, performing step S111；If not, return to step S106.
S111, EXV enter normal control, and SV is closed.
Fig. 5 is the flow chart of the control method of the refrigerant heat abstractor according to another specific example of the invention.Such as Fig. 5 institutes
Show, the control method of the refrigerant heat abstractor may include following steps：
S201, control refrigerant heat abstractor runs in a chiller mode.
S202, obtains the outlet temperature TL2 of the dew-point temperature TOL and refrigerant radiating subassembly around refrigerant radiating subassembly.
S203, judge TL2 whether less than or equal to the difference between T0L and the first preset temperature A and continue first it is default when
Between t1.If it is, performing step S205；If not, performing step S204.
S204, first throttle element EXV is normally controlled, and the first bypass elements SV is closed.
S205, the first default aperture P1 is tuned up by the aperture of EXV, and after the second preset time t of time delay 2, return to step
S203, continues to judge.
S206, when the aperture of EXV reaches default maximum opening, after time delay for a period of time, judges whether TL2 is less than
In T0L and the second preset temperature A0 (such as 3 DEG C) sums and lasting t1 times.If it is, performing step S207；If not, performing
Step S208.
S207, EXV keep current maximum opening, SV to open.
S208, after time delay for a period of time, judge TL2 whether more than or equal to T0L and the 3rd preset temperature (A1+A0) sum,
And continue the t1 times.If it is, performing step S209；If not, return to step S206.
S209, EXV keep current maximum opening, SV to close.
S210, after time delay for a period of time, judge TL2 whether more than or equal to T0L and the 4th preset temperature (A2+A0) sum,
And continue the t1 times.If it is, performing step S211；If not, return to step S206.
S212, EXV enter normal control, and SV is closed.
In sum, the control method of refrigerant heat abstractor according to embodiments of the present invention, in control refrigerant heat abstractor
When running in a chiller mode, the dew-point temperature around refrigerant radiating subassembly is obtained, while obtaining the current temperature of refrigerant radiating subassembly
Degree, then, the Current Temperatures according to dew-point temperature and refrigerant gallbladder-heat component are controlled to orifice union, so that refrigerant radiating group
The temperature of part is maintained at more than dew-point temperature, so as to effectively prevent from causing automatically controlled plate surface because the temperature of refrigerant radiating subassembly is too low
Condensation is damaged.
Fig. 2 is the block diagram of refrigerant heat abstractor according to an embodiment of the invention, and Fig. 3 is according to of the invention another
The block diagram of the refrigerant heat abstractor of one embodiment.As shown in Figure 2 or Figure 3, the refrigerant heat abstractor may include：Compression
Machine 10, outdoor heat exchanger 20, orifice union 30, refrigerant radiating subassembly 40 and control module 50.
Wherein, orifice union 30 includes restricting element and bypass elements in parallel.The exhaust outlet of compressor 10 is changed with outdoor
One end of hot device 20 is connected, and the other end of outdoor heat exchanger 20 passes through the entrance phase of orifice union 30 and refrigerant radiating subassembly 40
Even.Control module 50 is used to control refrigerant heat abstractor to run in a chiller mode, and obtains the dew around refrigerant radiating subassembly 40
Point temperature, and obtain the Current Temperatures of refrigerant radiating subassembly 40, and according to the current of dew-point temperature and refrigerant radiating subassembly 40
Temperature is controlled to orifice union, so that the temperature of refrigerant radiating subassembly 40 is maintained at more than dew-point temperature.
According to one embodiment of present invention, when orifice union 30 includes first throttle element EXV and the first bypass elements
During SV, when control module 50 is controlled according to the Current Temperatures of dew-point temperature and refrigerant radiating subassembly 40 to orifice union 30,
Wherein, control module 50 judges whether Current Temperatures are less than or equal to the difference between dew-point temperature and the first preset temperature and hold
Continuous first Preset Time；If it is, control module 50 then controls the aperture of first throttle element EXV to tune up the first default aperture,
And after the Preset Time of time delay second, judge whether Current Temperatures are less than or equal between dew-point temperature and the first preset temperature again
Difference and continue the first Preset Time, until the aperture of first throttle element EXV is tuned up to default maximum opening；If
No, control module 50 is then controlled according to normal control mode to first throttle element EXV, and controls the first bypass elements SV
It is closed.
Further, according to one embodiment of present invention, when the aperture of first throttle element EXV tune up to it is default most
During big aperture, control module 50 also judges whether Current Temperatures are less than or equal to dew-point temperature and the second preset temperature sum and hold
Continuous first Preset Time；If it is, control module 50 then controls first throttle element EXV to keep default maximum opening constant,
And control the first bypass elements SV to be in opening.
According to one embodiment of present invention, keep default maximum opening constant in control first throttle element EXV, and
The first bypass elements SV is controlled to be in after opening, whether control module 50 also judges Current Temperatures more than or equal to dew point temperature
Degree with the 3rd preset temperature sum and continue the first Preset Time, wherein, the 3rd preset temperature is more than the second preset temperature；Such as
Fruit is that control module 50 then controls first throttle element EXV to keep default maximum opening constant, and controls the first bypass elements
SV is closed, and determine whether Current Temperatures whether more than or equal to dew-point temperature and the 4th preset temperature sum and
Continue the first Preset Time, wherein, the 4th preset temperature is more than the 3rd preset temperature；If it is, control module 50 is then according to just
Normal control mode is controlled to first throttle element EXV, and controls the first bypass elements SV to be closed.
According to one embodiment of present invention, Current Temperatures are inlet temperature or the refrigerant radiating of refrigerant radiating subassembly 40
The outlet temperature of component 40, wherein, when inlet temperature of the Current Temperatures for refrigerant radiating subassembly 40, the second preset temperature is less than
Zero；When outlet temperature of the Current Temperatures for refrigerant radiating subassembly 40, the second preset temperature is more than zero.
It should be noted that the details not disclosed in the refrigerant heat abstractor of the embodiment of the present invention, refer to of the invention real
Details disclosed in the control method of the refrigerant heat abstractor for applying example, specifically repeats no more here.
Refrigerant heat abstractor according to embodiments of the present invention, control module control refrigerant heat abstractor is transported in a chiller mode
OK, and the dew-point temperature around refrigerant radiating subassembly is obtained, while the Current Temperatures of refrigerant radiating subassembly are obtained, and according to dew point
The Current Temperatures of temperature and refrigerant radiating subassembly are controlled to orifice union, so that the temperature of refrigerant radiating subassembly is maintained at dew
More than point temperature, so as to effectively prevent from causing electric-controlled plate surface sweating to damage because the temperature of refrigerant radiating subassembly is too low.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art
For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of control method of refrigerant heat abstractor, it is characterised in that the refrigerant heat abstractor includes that compressor, outdoor are changed
Hot device, orifice union and refrigerant radiating subassembly, the exhaust outlet of the compressor is connected with one end of the outdoor heat exchanger, described
The other end of outdoor heat exchanger is connected by the orifice union with the entrance of the refrigerant radiating subassembly, the orifice union bag
The restricting element and bypass elements of parallel connection are included, be the described method comprises the following steps：
S1, controls the refrigerant heat abstractor to run in a chiller mode, and obtain the dew point temperature around the refrigerant radiating subassembly
Degree, and obtain the Current Temperatures of the refrigerant radiating subassembly；
S2, the Current Temperatures according to the dew-point temperature and the refrigerant radiating subassembly are controlled to the orifice union, with
The temperature of the refrigerant radiating subassembly is set to be maintained at more than the dew-point temperature.
2. the control method of refrigerant heat abstractor as claimed in claim 1, it is characterised in that when the orifice union includes the
When one restricting element and the first bypass elements, the step S2 includes：
S21, judges whether the Current Temperatures are less than or equal to the difference between the dew-point temperature and the first preset temperature and hold
Continuous first Preset Time；
S22, if it is, control the aperture of the first throttle element to tune up the first default aperture, and it is default in time delay second
After time, step S21 is repeated, until the aperture of the first throttle element is tuned up to default maximum opening；
S23, if it is not, then being controlled to the first throttle element according to normal control mode, and controls by the of described first
Logical element is closed.
3. the control method of refrigerant heat abstractor as claimed in claim 2, it is characterised in that when the first throttle element
Aperture is tuned up during to default maximum opening, is also included：
Whether S221, judge the Current Temperatures less than or equal to the dew-point temperature and the second preset temperature sum and lasting institute
State the first Preset Time；
S222, if it is, control the first throttle element to keep the default maximum opening constant, and controls described the
One bypass elements are in opening.
4. the control method of refrigerant heat abstractor as claimed in claim 3, it is characterised in that after step S222, also wrap
Include：
Whether S223, judge the Current Temperatures more than or equal to the dew-point temperature and the 3rd preset temperature sum and lasting institute
The first Preset Time is stated, wherein, the 3rd preset temperature is more than second preset temperature；
S224, if it is, control the first throttle element to keep the default maximum opening constant, and controls described the
Whether one bypass elements are closed, and determine whether the Current Temperatures more than or equal to the dew-point temperature and the 4th
Preset temperature sum and lasting first Preset Time, wherein, the 4th preset temperature is more than the described 3rd default temperature
Degree；
S225, if it is, being controlled to the first throttle element according to normal control mode, and controls by the of described first
Logical element is closed.
5. the control method of refrigerant heat abstractor as claimed in claim 3, it is characterised in that the Current Temperatures are described cold
The outlet temperature of the inlet temperature of matchmaker's radiating subassembly or the refrigerant radiating subassembly, wherein,
When the inlet temperature that the Current Temperatures are the refrigerant radiating subassembly, second preset temperature is less than zero；
When the outlet temperature that the Current Temperatures are the refrigerant radiating subassembly, second preset temperature is more than zero.
6. a kind of refrigerant heat abstractor, it is characterised in that including：
Compressor；
Outdoor heat exchanger；
Orifice union, the orifice union includes restricting element and bypass elements in parallel；
Refrigerant radiating subassembly, the exhaust outlet of the compressor is connected with one end of the outdoor heat exchanger, the outdoor heat exchanger
The other end be connected with the entrance of the refrigerant radiating subassembly by the orifice union；
Control module, the control module is used to control the refrigerant heat abstractor to run in a chiller mode, and obtains described cold
Dew-point temperature around matchmaker's radiating subassembly, and the Current Temperatures of the refrigerant radiating subassembly are obtained, and according to the dew point temperature
The Current Temperatures of degree and the refrigerant radiating subassembly are controlled to the orifice union, so that the temperature of the refrigerant radiating subassembly
Degree is maintained at more than the dew-point temperature.
7. refrigerant heat abstractor as claimed in claim 6, it is characterised in that when the orifice union includes first throttle element
During with the first bypass elements, the control module is according to the Current Temperatures of the dew-point temperature and the refrigerant radiating subassembly to institute
When stating orifice union and being controlled, wherein,
The control module judges whether the Current Temperatures are less than or equal between the dew-point temperature and the first preset temperature
Difference and continue the first Preset Time；
If it is, the control module then controls the aperture of the first throttle element to tune up the first default aperture, and in time delay
After second Preset Time, judge whether the Current Temperatures are less than or equal between the dew-point temperature and the first preset temperature again
Difference and continue the first Preset Time, until the aperture of the first throttle element is tuned up to default maximum opening；
If not, the control module is then controlled according to normal control mode to the first throttle element, and control institute
The first bypass elements are stated to be closed.
8. refrigerant heat abstractor as claimed in claim 7, it is characterised in that when the aperture of the first throttle element tune up to
During default maximum opening,
The control module also judge the Current Temperatures whether less than or equal to the dew-point temperature and the second preset temperature sum,
And continue first Preset Time；
If it is, the control module then controls the first throttle element to keep the default maximum opening constant, and control
Make first bypass elements and be in opening.
9. refrigerant heat abstractor as claimed in claim 8, it is characterised in that keep described the first throttle element is controlled
Default maximum opening is constant, and controls first bypass elements to be in after opening,
The control module also judge the Current Temperatures whether more than or equal to the dew-point temperature and the 3rd preset temperature sum,
And continue first Preset Time, wherein, the 3rd preset temperature is more than second preset temperature；
If it is, the control module then controls the first throttle element to keep the default maximum opening constant, and control
Make first bypass elements to be closed, and determine whether the Current Temperatures whether more than or equal to the dew point temperature
Degree and the 4th preset temperature sum and lasting first Preset Time, wherein, the 4th preset temperature is more than the described 3rd
Preset temperature；
If it is, the control module is then controlled according to normal control mode to the first throttle element, and control institute
The first bypass elements are stated to be closed.
10. refrigerant heat abstractor as claimed in claim 8, it is characterised in that the Current Temperatures are the refrigerant radiating group
The outlet temperature of the inlet temperature of part or the refrigerant radiating subassembly, wherein,
When the inlet temperature that the Current Temperatures are the refrigerant radiating subassembly, second preset temperature is less than zero；
When the outlet temperature that the Current Temperatures are the refrigerant radiating subassembly, second preset temperature is more than zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264435.2A CN106686948B (en) | 2016-12-30 | 2016-12-30 | Refrigerant radiator and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264435.2A CN106686948B (en) | 2016-12-30 | 2016-12-30 | Refrigerant radiator and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106686948A true CN106686948A (en) | 2017-05-17 |
| CN106686948B CN106686948B (en) | 2019-04-30 |
Family
ID=58850506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611264435.2A Active CN106686948B (en) | 2016-12-30 | 2016-12-30 | Refrigerant radiator and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106686948B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270487A (en) * | 2017-07-10 | 2017-10-20 | 珠海格力电器股份有限公司 | Control the methods, devices and systems of air-conditioning driving plate radiating |
| CN108731206A (en) * | 2018-06-20 | 2018-11-02 | 广东美的暖通设备有限公司 | Refrigerant cooling device and its control method and air-conditioning system |
| CN110677014A (en) * | 2019-09-30 | 2020-01-10 | 珠海格力电器股份有限公司 | Cooling system and method of frequency converter capable of uniformly cooling frequency converter and air conditioning equipment |
| CN113606821A (en) * | 2021-08-31 | 2021-11-05 | 美的集团武汉暖通设备有限公司 | Air source heat pump device, control method and storage medium |
| CN113993361A (en) * | 2021-12-31 | 2022-01-28 | 天津飞旋科技股份有限公司 | Cooling water unit frequency converter refrigerant cooling system |
| CN114353412A (en) * | 2022-01-12 | 2022-04-15 | 广东美的暖通设备有限公司 | Control method and device of liquid cooling unit, readable storage medium and liquid cooling unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2518422A1 (en) * | 2009-12-22 | 2012-10-31 | Daikin Industries, Ltd. | Refrigeration device |
| CN204630203U (en) * | 2015-05-12 | 2015-09-09 | 广东美的制冷设备有限公司 | Air-conditioner |
| CN105240996A (en) * | 2015-09-24 | 2016-01-13 | 芜湖美智空调设备有限公司 | Method for controlling air conditioner |
-
2016
- 2016-12-30 CN CN201611264435.2A patent/CN106686948B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2518422A1 (en) * | 2009-12-22 | 2012-10-31 | Daikin Industries, Ltd. | Refrigeration device |
| CN204630203U (en) * | 2015-05-12 | 2015-09-09 | 广东美的制冷设备有限公司 | Air-conditioner |
| CN105240996A (en) * | 2015-09-24 | 2016-01-13 | 芜湖美智空调设备有限公司 | Method for controlling air conditioner |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270487A (en) * | 2017-07-10 | 2017-10-20 | 珠海格力电器股份有限公司 | Control the methods, devices and systems of air-conditioning driving plate radiating |
| CN108731206A (en) * | 2018-06-20 | 2018-11-02 | 广东美的暖通设备有限公司 | Refrigerant cooling device and its control method and air-conditioning system |
| CN110677014A (en) * | 2019-09-30 | 2020-01-10 | 珠海格力电器股份有限公司 | Cooling system and method of frequency converter capable of uniformly cooling frequency converter and air conditioning equipment |
| CN110677014B (en) * | 2019-09-30 | 2021-09-07 | 珠海格力电器股份有限公司 | Cooling system and method of frequency converter capable of uniformly cooling frequency converter and air conditioning equipment |
| CN113606821A (en) * | 2021-08-31 | 2021-11-05 | 美的集团武汉暖通设备有限公司 | Air source heat pump device, control method and storage medium |
| CN113993361A (en) * | 2021-12-31 | 2022-01-28 | 天津飞旋科技股份有限公司 | Cooling water unit frequency converter refrigerant cooling system |
| CN113993361B (en) * | 2021-12-31 | 2022-04-22 | 天津飞旋科技股份有限公司 | Cooling water unit frequency converter refrigerant cooling system |
| CN114353412A (en) * | 2022-01-12 | 2022-04-15 | 广东美的暖通设备有限公司 | Control method and device of liquid cooling unit, readable storage medium and liquid cooling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106686948B (en) | 2019-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106686948A (en) | Refrigerant heat dissipation apparatus and control method therefor | |
| CN105115199B (en) | The coolant distribution control method and device of multiple on-line system | |
| JP4365378B2 (en) | Defrosting operation control device and defrosting operation control method | |
| CN105091258B (en) | Air conditioner and its cooling control method | |
| JP5210626B2 (en) | Refrigeration equipment for land transportation and operation control method for refrigeration equipment for land transportation | |
| US7028494B2 (en) | Defrosting methodology for heat pump water heating system | |
| JP2010532462A (en) | High temperature gas defrosting method and apparatus | |
| JPH05223357A (en) | Air conditioning device | |
| CN106686945A (en) | Radiating device with refrigerants and method for controlling radiating device | |
| US11549734B2 (en) | Method for terminating defrosting of an evaporator by use of air temperature measurements | |
| CN107559955A (en) | Multiple on-line system and its low temperature control method | |
| US20090120113A1 (en) | Refrigeration system | |
| CN105135772B (en) | Water refrigerating plant and its control method for preventing cold water from freezing | |
| CN107257905A (en) | Cooling device | |
| CN110677014B (en) | Cooling system and method of frequency converter capable of uniformly cooling frequency converter and air conditioning equipment | |
| CN110542175A (en) | air conditioner defrosting method | |
| GB2317682A (en) | A valve for a heat pump | |
| CN104848578B (en) | The control method of air conditioner and air conditioner | |
| JPS61101660A (en) | Fuel cooling device for motorcar | |
| EP0928933B1 (en) | Refrigeration system with improved heat exchanger efficiency | |
| JP3735338B2 (en) | Refrigeration apparatus for vehicle and control method thereof | |
| JP2001263912A (en) | Refrigerator | |
| CN111023692A (en) | Multi-temperature-zone refrigeration system with switchable operation states and control method thereof | |
| CN113719967B (en) | Air conditioner defrosting method and device, air conditioner and storage medium | |
| KR20190046058A (en) | Airconditioning apparatus for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |