CN110360780A - Multi-line system and its degree of supercooling determine method, apparatus and equipment, storage medium - Google Patents
Multi-line system and its degree of supercooling determine method, apparatus and equipment, storage medium Download PDFInfo
- Publication number
- CN110360780A CN110360780A CN201910664516.9A CN201910664516A CN110360780A CN 110360780 A CN110360780 A CN 110360780A CN 201910664516 A CN201910664516 A CN 201910664516A CN 110360780 A CN110360780 A CN 110360780A
- Authority
- CN
- China
- Prior art keywords
- supercooling
- degree
- temperature
- line system
- heat exchanger
- 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
-
- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
-
- 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
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2103—Temperatures near a heat exchanger
Abstract
This disclosure relates to which a kind of multi-line system and its degree of supercooling determine method, apparatus and equipment, storage medium.The multi-line system degree of supercooling determines that method includes: temperature and outdoor heat exchanger temperature after temperature, supercooling apparatus before obtaining supercooling apparatus；Multi-line system degree of supercooling is determined according to temperature after temperature, supercooling apparatus before supercooling apparatus and outdoor heat exchanger temperature.The disclosure can determine multi-line system degree of supercooling according to relevant parameter, thus reduce unit manufacturing cost, simplified multi-line system, be beneficial to the popularization of multi-connected machine in the case where not including pressure sensor.
Description
Technical field
This disclosure relates to which multi-line system field, in particular to a kind of multi-line system and its degree of supercooling determine method, dress
It sets and equipment, storage medium.
Background technique
The big feature of the one of multi-line system is that connecting leg length is longer between inside and outside machine and drop is larger, therefore refrigerant is recycling
The pressure loss as caused by the factors such as friction, gravity just can not be ignored in the process.Also therefore, multi-connected machine is in installation process after sale
It is middle to need according to the additional refrigerant of connection length of tube, this result in user actually use in the coolant quantity of each multi-line system be
It is different, while installing that lack of standardization to also result in coolant quantity addition excessive or very few after sale.
Multi-line system installs subcooler additional after the condenser mostly to improve the degree of supercooling of refrigerant at present, avoid connecting tube compared with
When long or drop is larger, since crushing causes refrigerant to enter two-phase state in advance and then causes interior machine throttling noise problem.
Summary of the invention
Inventors discovered through research that: the relevant technologies judge the method for system degree of supercooling to install temperature sensing package additional after subcooler
Pressure sensor is installed additional in exhaust side simultaneously then to subtract by the conversion pressure of measuring system condensation side at saturation temperature
Temperature after cooler is the degree of supercooling of system.
But since multi-connected machine is at high price, and the relevant technologies determine that degree of supercooling needs to introduce pressure sensor, and pressure passes
The introducing of sensor, and improve multi-line system cost.
In view of at least one in the above technical problem, present disclose provides a kind of multi-line systems and its degree of supercooling to determine
Method, apparatus and equipment, storage medium can determine multi-joint in the case where not including pressure sensor according to relevant parameter
Machine system degree of supercooling.
According to one aspect of the disclosure, a kind of multi-line system degree of supercooling is provided and determines method, comprising:
Obtain before supercooling apparatus temperature and outdoor heat exchanger temperature after temperature, supercooling apparatus；
Determine that multi-line system is subcooled according to temperature after temperature, supercooling apparatus before supercooling apparatus and outdoor heat exchanger temperature
Degree.
It is described to be changed according to temperature after temperature, supercooling apparatus before supercooling apparatus and outdoor in some embodiments of the present disclosure
Hot device temperature determines that multi-line system degree of supercooling includes:
Level-one degree of supercooling is determined according to outdoor heat exchanger temperature；
Second level degree of supercooling is determined according to temperature after temperature before supercooling apparatus and supercooling apparatus；
According to level-one degree of supercooling and second level degree of supercooling and determine multi-line system degree of supercooling.
It is described to determine that level-one degree of supercooling includes: according to outdoor heat exchanger temperature in some embodiments of the present disclosure
Level-one degree of supercooling theoretical value is determined according to unit current operation frequency and unit maximum running frequency；
System refrigerant correction value is determined according to outdoor heat exchanger temperature and outdoor unit heat exchanger environment temperature；
Level-one degree of supercooling is determined according to level-one degree of supercooling theoretical value and system refrigerant correction value.
It is described to be determined according to unit current operation frequency and unit maximum running frequency in some embodiments of the present disclosure
Level-one degree of supercooling theoretical value includes:
Determine that unit exports percentage according to unit current operation frequency and unit maximum running frequency；
Percentage, which is exported, according to unit determines corresponding level-one degree of supercooling theoretical value.
It is described according to outdoor heat exchanger temperature and outdoor unit heat exchanger environment temperature in some embodiments of the present disclosure
Determine that system refrigerant correction value includes:
System refrigerant correction value is determined according to the difference of outdoor heat exchanger temperature and outdoor unit heat exchanger environment temperature.
It is described to determine one according to level-one degree of supercooling theoretical value and system refrigerant correction value in some embodiments of the present disclosure
Grade degree of supercooling include:
Level-one degree of supercooling is determined according to the difference of level-one degree of supercooling theoretical value and system refrigerant correction value.
It is described that second level is determined according to temperature after temperature before supercooling apparatus and supercooling apparatus in some embodiments of the present disclosure
Degree of supercooling includes:
Second level degree of supercooling is determined according to temperature difference after temperature before supercooling apparatus and supercooling apparatus.
In some embodiments of the present disclosure, outdoor heat exchanger temperature is outdoor heat exchanger break-out terminal temperature.
According to another aspect of the present disclosure, a kind of multi-line system degree of supercooling determining device is provided, comprising:
Temperature acquisition module, for obtaining before supercooling apparatus temperature and outdoor heat exchanger temperature after temperature, supercooling apparatus；
Degree of supercooling determining module, for according to temperature after temperature, supercooling apparatus before supercooling apparatus and outdoor heat exchanger temperature
Determine multi-line system degree of supercooling.
In some embodiments of the present disclosure, the multi-line system degree of supercooling determining device is realized for executing as above-mentioned
Multi-line system degree of supercooling described in any embodiment determines the operation of method.
According to another aspect of the present disclosure, a kind of multi-line system degree of supercooling determining device is provided, comprising:
Memory, for storing instruction；
Processor, for executing described instruction, so that described device execution realization is more as described in above-mentioned any embodiment
On-line system degree of supercooling determines the operation of method.
According to another aspect of the present disclosure, a kind of multi-line system degree of supercooling is provided and determines that equipment, including the first temperature pass
Sensor, second temperature sensor, third temperature sensor and multi-line system degree of supercooling determining device, in which:
Temperature before supercooling apparatus for acquiring temperature before supercooling apparatus, and is sent to multi-connected machine by the first temperature sensor
System degree of supercooling determining device；
Temperature after supercooling apparatus for temperature after supercooling apparatus, and is sent to multi-line system by second temperature sensor
Degree of supercooling determining device；
Third temperature sensor is sent to multi-connected machine for acquiring outdoor heat exchanger temperature, and by outdoor heat exchanger temperature
System degree of supercooling determining device；
Multi-line system degree of supercooling determining device determines for the multi-line system degree of supercooling as described in above-mentioned any embodiment
Device.
According to another aspect of the present disclosure, a kind of multi-line system is provided, including more as described in above-mentioned any embodiment
On-line system degree of supercooling determining device；And/or it is set including the multi-line system degree of supercooling determination as described in above-mentioned any embodiment
It is standby.
According to another aspect of the present disclosure, a kind of computer readable storage medium is provided, wherein described computer-readable to deposit
Storage media is stored with computer instruction, and the multi-connected machine as described in above-mentioned any embodiment is realized when described instruction is executed by processor
System degree of supercooling determines method.
The disclosure can determine that multi-line system is subcooled according to relevant parameter in the case where not including pressure sensor
Degree, thus reduces unit manufacturing cost, has simplified multi-line system, be beneficial to the popularization of multi-connected machine.
Detailed description of the invention
In order to illustrate more clearly of the embodiment of the present disclosure or technical solution in the prior art, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Disclosed some embodiments for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of some embodiments of disclosure multi-line system.
Fig. 2 is the schematic diagram that disclosure multi-line system degree of supercooling determines some embodiments of equipment.
Fig. 3 is the schematic diagram that disclosure multi-line system degree of supercooling determines some embodiments of method.
Fig. 4 is the schematic diagram of some embodiments of disclosure multi-line system degree of supercooling determining device.
Fig. 5 is the schematic diagram of other embodiments of disclosure multi-line system degree of supercooling determining device.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out clear, complete
Site preparation description, it is clear that described embodiment is only disclosure a part of the embodiment, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the disclosure and its application or making
Any restrictions.Based on the embodiment in the disclosure, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, belong to the disclosure protection range.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the present disclosure processed of formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 is the schematic diagram of some embodiments of disclosure multi-line system.As shown in Figure 1, disclosure multi-line system packet
It includes outdoor side apparatus (outdoor unit) and is memory device (indoor unit), in which:
There are compressor, gas-liquid separator, subcooler, outdoor heat exchanger and outdoor fan, four-way valve, electronic expansion in outside
Valve EKV1, electric expansion valve EKV2.There are several indoor heat exchangers, indoor fan and electric expansion valve in indoor.
In some embodiments of the disclosure, the multi-line system of Fig. 1 embodiment may include that multi-line system degree of supercooling is true
Locking equipment.
Fig. 2 is the schematic diagram that disclosure multi-line system degree of supercooling determines some embodiments of equipment.As shown in Fig. 2, described
Multi-line system degree of supercooling determines that equipment may include the first temperature sensor 21, second temperature sensor 22, third temperature biography
Sensor 23 and multi-line system degree of supercooling determining device 24, in which:
First temperature sensor 21 for acquiring temperature T1 before supercooling apparatus, and temperature T1 before supercooling apparatus is sent to
Multi-line system degree of supercooling determining device 24.
In some embodiments of the disclosure, temperature T1 can be refrigerant temperature before subcooler before supercooling apparatus.
Second temperature sensor 22 for temperature T2 after supercooling apparatus, and temperature T2 after supercooling apparatus is sent to multi-joint
Machine system degree of supercooling determining device 24.
In some embodiments of the disclosure, temperature T2 can be refrigerant temperature after subcooler after supercooling apparatus.
In some embodiments of the disclosure, as shown in Figure 1, the first temperature sensor 21, second temperature sensor 22 are arranged
On the refrigerant main road of subcooler.First temperature sensor 21 is arranged before subcooler and the setting of second temperature sensor 22 exists
After subcooler.
Third temperature sensor 23 is sent to for acquiring outdoor heat exchanger temperature T3, and by outdoor heat exchanger temperature T3
Multi-line system degree of supercooling determining device 24.
In some embodiments of the disclosure, outdoor heat exchanger temperature T3 can be the cold of outdoor heat exchanger break-out end
Matchmaker's temperature.
In some embodiments of the disclosure, outdoor heat exchanger temperature T3 can be outdoor heat exchanger condenser branch end
Refrigerant temperature.
In some embodiments of the disclosure, the first temperature sensor 21, second temperature sensor 22, third temperature sensor
23 can be implemented as temperature sensing package.
In some embodiments of the disclosure, divide as shown in Figure 1, third temperature sensor 23 is arranged among outdoor heat exchanger
Road (condenser branch) end.
In disclosure above-described embodiment, third temperature sensor 23 is arranged in outdoor heat exchanger break-out (condenser
Branch) end is in order to enable condensation is more abundant, so that outdoor heat exchanger refrigerant temperature more connects with outdoor heat exchanger environment temperature
Closely, convenient for determining system refrigerant correction value, Jin Erke according to the difference of outdoor heat exchanger temperature and outdoor unit heat exchanger environment temperature
With determining and degree of supercooling more accurately.
Multi-line system degree of supercooling determining device 24, for according to temperature T2 after temperature T1, supercooling apparatus before supercooling apparatus,
Outdoor heat exchanger temperature T3 determines multi-line system degree of supercooling Tdc.
Equipment and multi-line system, Ke Yi are determined based on disclosure multi-line system degree of supercooling provided by the above embodiment
In the case where not including pressure sensor, multi-line system degree of supercooling is determined according to relevant parameter, it is possible thereby to meet multi-connected machine
System requirements reduce unit manufacturing cost, have simplified multi-line system, are beneficial to the popularization of multi-connected machine.
Below by specific embodiment to disclosure multi-line system degree of supercooling determining device and multi-line system degree of supercooling
Determine how equipment determines that multi-line system degree of supercooling is specifically described.
Fig. 3 is the schematic diagram that disclosure multi-line system degree of supercooling determines some embodiments of method.Preferably, the present embodiment
It can determine that equipment is executed by disclosure multi-line system degree of supercooling determining device or disclosure multi-line system degree of supercooling.This method
The following steps are included:
Step 31, temperature T2, outdoor heat exchanger temperature T3 after temperature T1, supercooling apparatus are obtained before supercooling apparatus.
In some embodiments of the present disclosure, step 31 may include:
Step 311, the first temperature sensor 21 is received to acquire and temperature T1 before the supercooling apparatus that sends.
Step 312, second temperature sensor 22 is received to acquire and temperature T2 after the supercooling apparatus that sends.
Step 313, the outdoor heat exchanger temperature T3 that third temperature sensor 23 is acquired and sent is received.
Step 32, it is determined according to temperature T2, outdoor heat exchanger temperature T3 after temperature T1, supercooling apparatus before supercooling apparatus multi-joint
Machine system degree of supercooling Tdc.
In some embodiments of the present disclosure, the multi-line system of Fig. 1 embodiment is in refrigerating operaton, the flowing side of refrigerant
To as shown by the arrows in Figure 1, electric expansion valve EKV1 holding standard-sized sheet, without throttling；The high pressure gaseous of compressor discharge
For refrigerant through four-way valve to outdoor heat exchanger, the liquid refrigerants for becoming medium temperature high pressure after condensation reaches primary supercooling, then is divided to two
Road enters subcooler, and main road refrigerant directly passes through, and bypass refrigerant becomes the two-phase state of low-temp low-pressure by EKV2 reducing pressure by regulating flow
After pass through, two-way refrigerant exchanges heat in subcooler.Bypass refrigerant enters gas-liquid separator and is then return to compressor after heat exchange,
And (secondary supercooling) is then subcooled in main road refrigerant again, subsequently into indoor by the electric expansion valve before each heat exchanger
The two-phase state for becoming low-temp low-pressure after reducing pressure by regulating flow becomes the gaseous coolant warp of low-temp low-pressure in heat exchanger after evaporation endothermic
Four-way valve returns in gas-liquid separator, eventually passes back to compressor air suction mouth, completes refrigeration cycle.
In some embodiments of the present disclosure, step 32 may include step 321- step 323, in which:
Step 321, level-one degree of supercooling Tdc1 is determined according to outdoor heat exchanger temperature T3.
In some embodiments of the present disclosure, refrigerant obtains level-one degree of supercooling by primary supercooling in outdoor heat exchanger
Tdc1, the size of the first degree of supercooling is main related with condensation temperature, system coolant quantity at this time.
In some embodiments of the present disclosure, step 321 may include step 3211- step 3213, in which:
Step 3211, level-one degree of supercooling theoretical value α is determined according to unit current operation frequency and unit maximum running frequency.
In some embodiments of the present disclosure, step 3211 may include: according to unit current operation frequency and unit most
High running frequency determines that unit exports percentage；It is tabled look-up according to unit output percentage and determines corresponding level-one supercooling topology degree
Value.
In some embodiments of the present disclosure, step 3211 may include:
When environment temperature and constant outer rotation speed of fan, compressor frequency is higher, and condensing pressure is higher, and degree of supercooling is relatively
It is bigger.Unit current operation frequency is f, and unit maximum running frequency is F.The reason of level-one degree of supercooling can be then obtained by table 1
By value α are as follows:
Table 1
Wherein, percentage Ccf=f/F*100% is exported；a,b,c,d,e∈(0,20)
In some embodiments of the present disclosure, the value table of α, can root not necessarily according to 5 value intervals outlined above
Suitably increase and decrease according to the specific range of operation size of unit, and the discontinuous point of Ccf is also not necessarily according to illustrated above, it can be according to machine
The group appropriate value of actual conditions.
Step 3212, according to outdoor heat exchanger temperature T3 and outdoor unit heat exchanger environment temperature TOuter ringThe system refrigerant of determination is repaired
Positive value β.
In some embodiments of the present disclosure, under refrigeration mode, system liquid refrigerants is mainly stored in outdoor unit heat exchanger,
If system coolant quantity is more, liquid refrigerants is more in outdoor heat exchanger, gets in heat exchanger back segment and waste air heat exchange
Sufficiently, level-one degree of supercooling is also bigger, while being located at the temperature sensing package T3 of heat exchanger break-out end also just closer to even equal to
TOuter ring., whereas if system coolant quantity is on the low side, condenser, degree of supercooling are not out by sufficiently heat exchange in heat exchanger back segment
It is smaller, while T3 and TOuter ringDifference it is also bigger.Here system refrigerant correction value β=T3-T can be definedOuter ring；β≥0
In some embodiments of the present disclosure, step 3212 may include: according to outdoor heat exchanger temperature T3 and outdoor unit
Heat exchanger environment temperature TOuter ringDifference determine system refrigerant correction value β.
Step 3213, level-one degree of supercooling Tdc1 is determined according to level-one degree of supercooling theoretical value α and system refrigerant correction value β.
In some embodiments of the present disclosure, step 3213 may include: cold according to level-one degree of supercooling theoretical value α and system
The difference of matchmaker's correction value β determines level-one degree of supercooling Tdc1.
In some embodiments of the present disclosure, step 3213 may include: to determine level-one degree of supercooling according to formula (1)
Tdc1。
Tdc1=alpha-beta=α+TOuter ring-T3 (1)
Step 322, second level degree of supercooling Tdc2 is determined according to temperature T2 after temperature T1 before supercooling apparatus and supercooling apparatus.
In some embodiments of the present disclosure, refrigerant passes through secondary supercooling in subcooler, at this time the size master of degree of supercooling
Related with the aperture of EKV2, aperture is bigger, and main and side road refrigerant heat exchange amount is also bigger, and degree of supercooling is also bigger, and in subcooler
After front and back installs the first temperature sensor 21, second temperature sensor 22 additional, it can directly indicate that second level is subcooled with the difference of T2 and T1
Spend Tdc2.
In some embodiments of the present disclosure, step 322 may include: according to temperature T1 and supercooling apparatus before supercooling apparatus
The difference of temperature T2 determines second level degree of supercooling Tdc2 afterwards.
In some embodiments of the present disclosure, step 322 may include: to determine second level degree of supercooling Tdc2 according to formula (2).
Tdc2=T1-T2 (2)
Step 323, according to level-one degree of supercooling Tdc1 and second level degree of supercooling Tdc2 and determine multi-line system degree of supercooling
Tdc。
In some embodiments of the present disclosure, step 323 may include: after multi-line system does not include pressure sensor,
System degree of supercooling can be judged by formula (3):
Tdc=Tdc1+Tdc2=(alpha-beta)+(T1-T2)=α+TOuter ring+T1-T2-T3 (3)
Method is determined based on disclosure multi-line system degree of supercooling provided by the above embodiment, can be passed in system no pressure
In the case where sensor, pass through temperature, external environment temperature, condenser (outdoor unit heat exchanger) branch terminal temperature, pressure before and after cooler
The parameters such as contracting machine running frequency, slitting part extrapolate system degree of supercooling.Thus disclosure above-described embodiment can satisfy multi-connected machine
System requirements have simplified multi-line system to reduce unit manufacturing cost, are beneficial to the popularization of multi-connected machine.
Fig. 4 is the schematic diagram of some embodiments of disclosure multi-line system degree of supercooling determining device.As shown in figure 4, this public affairs
Opening multi-line system degree of supercooling determining device (such as multi-line system degree of supercooling determining device 24 of Fig. 2 embodiment) may include
Temperature acquisition module 41 and degree of supercooling determining module 42, in which:
Temperature acquisition module 41, for obtaining before supercooling apparatus temperature T2, outdoor heat exchanger temperature after temperature T1, supercooling apparatus
Spend T3.
Degree of supercooling determining module 42, for according to temperature T2, outdoor heat exchanger after temperature T1, supercooling apparatus before supercooling apparatus
Temperature T3 determines multi-line system degree of supercooling Tdc.
In some embodiments of the present disclosure, degree of supercooling determining module 42 can be used for being determined according to outdoor heat exchanger temperature
Level-one degree of supercooling；Second level degree of supercooling is determined according to temperature after temperature before supercooling apparatus and supercooling apparatus；According to level-one degree of supercooling and
Second level degree of supercooling and determining multi-line system degree of supercooling.
In some embodiments of the present disclosure, degree of supercooling determining module 42 is determining level-one mistake according to outdoor heat exchanger temperature
In the case where cold degree, it can be used for determining that topology degree is subcooled in level-one according to unit current operation frequency and unit maximum running frequency
Value；System refrigerant correction value is determined according to outdoor heat exchanger temperature and outdoor unit heat exchanger environment temperature；According to level-one degree of supercooling
Theoretical value and system refrigerant correction value determine level-one degree of supercooling.
In some embodiments of the present disclosure, degree of supercooling determining module 42 according to unit current operation frequency and unit most
In the case that high running frequency determines level-one degree of supercooling theoretical value, it can be used for according to unit current operation frequency and unit highest
Running frequency determines that unit exports percentage；Percentage, which is exported, according to unit determines corresponding level-one degree of supercooling theoretical value.
In some embodiments of the present disclosure, degree of supercooling determining module 42 is according to outdoor heat exchanger temperature and outdoor unit
In the case that heat exchanger environment temperature determines system refrigerant correction value, it can be used for being changed according to outdoor heat exchanger temperature and outdoor unit
The difference of hot device environment temperature determines system refrigerant correction value.
In some embodiments of the present disclosure, degree of supercooling determining module 42 is cold according to level-one degree of supercooling theoretical value and system
In the case that matchmaker's correction value determines level-one degree of supercooling, can be used for according to level-one degree of supercooling theoretical value and system refrigerant correction value it
Difference determines level-one degree of supercooling.
In some embodiments of the present disclosure, degree of supercooling determining module 42 temperature and supercooling apparatus before according to supercooling apparatus
In the case that temperature determines second level degree of supercooling afterwards, it can be used for true according to temperature difference after temperature before supercooling apparatus and supercooling apparatus
Determine second level degree of supercooling.
In some embodiments of the present disclosure, the multi-line system degree of supercooling determining device 24 is realized as above for executing
State the operation that multi-line system degree of supercooling described in any embodiment (such as Fig. 3 embodiment) determines method.
Fig. 5 is the schematic diagram of other embodiments of disclosure multi-line system degree of supercooling determining device.As shown in figure 5, this
Open multi-line system degree of supercooling determining device (such as multi-line system degree of supercooling determining device 24 of Fig. 2 embodiment) can wrap
Include memory 51 and processor 52, in which:
Memory 51, for storing instruction.
Processor 52, for executing described instruction, so that described device execution realization such as above-mentioned any embodiment (such as scheme
3 embodiments) described in multi-line system degree of supercooling determine the operation of method.
Based on disclosure multi-line system degree of supercooling determining device provided by the above embodiment, can be passed in system no pressure
In the case where sensor, pass through temperature, external environment temperature, condenser (outdoor unit heat exchanger) branch terminal temperature, pressure before and after cooler
The parameters such as contracting machine running frequency, slitting part extrapolate system degree of supercooling.Thus disclosure above-described embodiment can satisfy multi-connected machine
System requirements have simplified multi-line system to reduce unit manufacturing cost, are beneficial to the popularization of multi-connected machine.
According to another aspect of the present disclosure, a kind of multi-line system (such as multi-line system of Fig. 1 embodiment) is provided, is wrapped
Include the multi-line system degree of supercooling determining device as described in above-mentioned any embodiment (such as Fig. 4 or Fig. 5 embodiment)；And/or packet
It includes the multi-line system degree of supercooling as described in above-mentioned any embodiment (such as Fig. 2 embodiment) and determines equipment.
Based on disclosure multi-line system provided by the above embodiment, can in the case where system no pressure sensor,
Pass through temperature, external environment temperature, condenser (outdoor unit heat exchanger) branch terminal temperature, compressor operating frequency etc. before and after cooler
Parameter, slitting part extrapolate system degree of supercooling.Thus disclosure above-described embodiment can satisfy multi-line system demand, to subtract
Small unit manufacturing cost, has simplified multi-line system, has been beneficial to the popularization of multi-connected machine.
According to another aspect of the present disclosure, a kind of computer readable storage medium is provided, wherein described computer-readable to deposit
Storage media is stored with computer instruction, when described instruction is executed by processor realize as above-mentioned any embodiment (such as Fig. 3 implement
Example) described in multi-line system degree of supercooling determine method.
It, can be in system no pressure sensor based on disclosure computer readable storage medium provided by the above embodiment
In the case of, it is transported by temperature, external environment temperature, condenser (outdoor unit heat exchanger) branch terminal temperature, compressor before and after cooler
The parameters such as line frequency, slitting part extrapolate system degree of supercooling.Thus disclosure above-described embodiment can satisfy multi-line system and need
It asks, to reduce unit manufacturing cost, has simplified multi-line system, be beneficial to the popularization of multi-connected machine.
Multi-line system degree of supercooling determining device described above can be implemented as described herein for executing
General processor, programmable logic controller (PLC) (PLC), the digital signal processor (DSP), specific integrated circuit of function
(ASIC), field programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components or it is any appropriately combined.
So far, the disclosure is described in detail.In order to avoid covering the design of the disclosure, it is public that this field institute is not described
The some details known.Those skilled in the art as described above, completely it can be appreciated how implementing technology disclosed herein
Scheme.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, can also indicate that relevant hardware is completed by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The description of the disclosure is given for the purpose of illustration and description, and is not exhaustively or by the disclosure
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
Embodiment is stated and be the principle and practical application in order to more preferably illustrate the disclosure, and those skilled in the art is enable to manage
The solution disclosure is to design various embodiments suitable for specific applications with various modifications.
Claims (14)
1. a kind of multi-line system degree of supercooling determines method characterized by comprising
Obtain before supercooling apparatus temperature and outdoor heat exchanger temperature after temperature, supercooling apparatus；
Multi-line system degree of supercooling is determined according to temperature after temperature, supercooling apparatus before supercooling apparatus and outdoor heat exchanger temperature.
2. multi-line system degree of supercooling according to claim 1 determines method, which is characterized in that described according to supercooling apparatus
Temperature and outdoor heat exchanger temperature determine that multi-line system degree of supercooling includes: after preceding temperature, supercooling apparatus
Level-one degree of supercooling is determined according to outdoor heat exchanger temperature；
Second level degree of supercooling is determined according to temperature after temperature before supercooling apparatus and supercooling apparatus；
According to level-one degree of supercooling and second level degree of supercooling and determine multi-line system degree of supercooling.
3. multi-line system degree of supercooling according to claim 2 determines method, which is characterized in that described according to outdoor heat exchange
Device temperature determines that level-one degree of supercooling includes:
Level-one degree of supercooling theoretical value is determined according to unit current operation frequency and unit maximum running frequency；
System refrigerant correction value is determined according to outdoor heat exchanger temperature and outdoor unit heat exchanger environment temperature；
Level-one degree of supercooling is determined according to level-one degree of supercooling theoretical value and system refrigerant correction value.
4. multi-line system degree of supercooling according to claim 3 determines method, which is characterized in that described current according to unit
Running frequency and unit maximum running frequency determine that level-one degree of supercooling theoretical value includes:
Determine that unit exports percentage according to unit current operation frequency and unit maximum running frequency；
Percentage, which is exported, according to unit determines corresponding level-one degree of supercooling theoretical value.
5. multi-line system degree of supercooling according to claim 3 determines method, which is characterized in that described according to outdoor heat exchange
Device temperature and outdoor unit heat exchanger environment temperature determine that system refrigerant correction value includes:
System refrigerant correction value is determined according to the difference of outdoor heat exchanger temperature and outdoor unit heat exchanger environment temperature.
6. multi-line system degree of supercooling according to claim 3 determines method, which is characterized in that described to be subcooled according to level-one
Topology degree value and system refrigerant correction value determine that level-one degree of supercooling includes:
Level-one degree of supercooling is determined according to the difference of level-one degree of supercooling theoretical value and system refrigerant correction value.
7. the multi-line system degree of supercooling according to any one of claim 2-6 determines method, which is characterized in that described
Determine that second level degree of supercooling includes: according to temperature after temperature before supercooling apparatus and supercooling apparatus
Second level degree of supercooling is determined according to temperature difference after temperature before supercooling apparatus and supercooling apparatus.
8. multi-line system degree of supercooling according to claim 1 to 6 determines method, which is characterized in that
Outdoor heat exchanger temperature is outdoor heat exchanger break-out terminal temperature.
9. a kind of multi-line system degree of supercooling determining device characterized by comprising
Temperature acquisition module, for obtaining before supercooling apparatus temperature and outdoor heat exchanger temperature after temperature, supercooling apparatus；
Degree of supercooling determining module, for being determined according to temperature after temperature, supercooling apparatus before supercooling apparatus and outdoor heat exchanger temperature
Multi-line system degree of supercooling.
10. multi-line system degree of supercooling determining device according to claim 9, which is characterized in that the multi-line system
Degree of supercooling determining device is realized for executing as multi-line system degree of supercooling of any of claims 1-8 determines method
Operation.
11. a kind of multi-line system degree of supercooling determining device characterized by comprising
Memory, for storing instruction；
Processor is realized so that described device executes as of any of claims 1-8 more for executing described instruction
On-line system degree of supercooling determines the operation of method.
12. a kind of multi-line system degree of supercooling determines equipment, which is characterized in that passed including the first temperature sensor, second temperature
Sensor, third temperature sensor and multi-line system degree of supercooling determining device, in which:
Temperature before supercooling apparatus for acquiring temperature before supercooling apparatus, and is sent to multi-line system by the first temperature sensor
Degree of supercooling determining device；
Second temperature sensor is sent to multi-line system supercooling for temperature after supercooling apparatus, and by temperature after supercooling apparatus
Spend determining device；
Third temperature sensor is sent to multi-line system for acquiring outdoor heat exchanger temperature, and by outdoor heat exchanger temperature
Degree of supercooling determining device；
Multi-line system degree of supercooling determining device, it is true for the multi-line system degree of supercooling as described in any one of claim 9-11
Determine device.
13. a kind of multi-line system, which is characterized in that including the multi-line system mistake as described in any one of claim 9-11
Cold degree determining device；And/or including multi-line system degree of supercooling as claimed in claim 12 determine equipment.
14. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, realizes that multi-line system degree of supercooling of any of claims 1-8 such as determines when described instruction is executed by processor
Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664516.9A CN110360780B (en) | 2019-07-23 | 2019-07-23 | Multi-split air conditioning system, supercooling degree determination method, device and equipment thereof and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664516.9A CN110360780B (en) | 2019-07-23 | 2019-07-23 | Multi-split air conditioning system, supercooling degree determination method, device and equipment thereof and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110360780A true CN110360780A (en) | 2019-10-22 |
| CN110360780B CN110360780B (en) | 2020-11-24 |
Family
ID=68221445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910664516.9A Active CN110360780B (en) | 2019-07-23 | 2019-07-23 | Multi-split air conditioning system, supercooling degree determination method, device and equipment thereof and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360780B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000314573A (en) * | 1999-05-06 | 2000-11-14 | Hitachi Ltd | Heat exchanger for air conditioner |
| JP3260681B2 (en) * | 1997-12-26 | 2002-02-25 | 三菱電機株式会社 | Air conditioner using non-azeotropic mixed refrigerant and operation control method of the air conditioner |
| WO2008153669A2 (en) * | 2007-06-08 | 2008-12-18 | Trane International Inc. | Refrigerant reheat circuit and charge control |
| CN101839580A (en) * | 2009-03-20 | 2010-09-22 | 珠海格力电器股份有限公司 | Air-conditioning system and method for judging whether refrigerant perfused amount is proper |
| CN203116203U (en) * | 2013-02-21 | 2013-08-07 | 浙江商业职业技术学院 | Air cooling air-conditioning system provided with condenser cooling supercooling device |
| CN106152633A (en) * | 2016-06-28 | 2016-11-23 | 广东美的暖通设备有限公司 | multiple on-line system and control method thereof |
| EP3098531A1 (en) * | 2014-01-21 | 2016-11-30 | Mitsubishi Electric Corporation | Air conditioner |
| CN106839294A (en) * | 2017-01-17 | 2017-06-13 | 广东美的暖通设备有限公司 | Control method and device when multiple on-line system and its cryogenic refrigeration |
| CN107843037A (en) * | 2017-10-31 | 2018-03-27 | 广东美的暖通设备有限公司 | Multiple on-line system and its supercooling control device and method |
| CN108397942A (en) * | 2018-01-22 | 2018-08-14 | 宋静贤 | A kind of operation method of refrigeration system |
| CN208059150U (en) * | 2017-11-17 | 2018-11-06 | 深圳麦克维尔空调有限公司 | A kind of frequency-conversion air-conditioning system |
| CN108800634A (en) * | 2018-06-29 | 2018-11-13 | 重庆美的通用制冷设备有限公司 | Two stage centrifugal handpiece Water Chilling Units and its control method of level-one throttling, device |
| CN109357429A (en) * | 2018-09-21 | 2019-02-19 | 青岛海尔空调电子有限公司 | A kind of heat-reclamation multi-compressors cool-warm switching device, multi-connected machine and control method |
| CN109798627A (en) * | 2019-01-15 | 2019-05-24 | 广东美的暖通设备有限公司 | The control method and device of multi-line system |
| CN109915992A (en) * | 2019-02-28 | 2019-06-21 | 广东美的暖通设备有限公司 | The method and apparatus that multi-line system blowout prevention enthalpy pipeline returns liquid |
-
2019
- 2019-07-23 CN CN201910664516.9A patent/CN110360780B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3260681B2 (en) * | 1997-12-26 | 2002-02-25 | 三菱電機株式会社 | Air conditioner using non-azeotropic mixed refrigerant and operation control method of the air conditioner |
| JP2000314573A (en) * | 1999-05-06 | 2000-11-14 | Hitachi Ltd | Heat exchanger for air conditioner |
| WO2008153669A2 (en) * | 2007-06-08 | 2008-12-18 | Trane International Inc. | Refrigerant reheat circuit and charge control |
| CN101839580A (en) * | 2009-03-20 | 2010-09-22 | 珠海格力电器股份有限公司 | Air-conditioning system and method for judging whether refrigerant perfused amount is proper |
| CN203116203U (en) * | 2013-02-21 | 2013-08-07 | 浙江商业职业技术学院 | Air cooling air-conditioning system provided with condenser cooling supercooling device |
| EP3098531A1 (en) * | 2014-01-21 | 2016-11-30 | Mitsubishi Electric Corporation | Air conditioner |
| CN106152633A (en) * | 2016-06-28 | 2016-11-23 | 广东美的暖通设备有限公司 | multiple on-line system and control method thereof |
| CN106839294A (en) * | 2017-01-17 | 2017-06-13 | 广东美的暖通设备有限公司 | Control method and device when multiple on-line system and its cryogenic refrigeration |
| CN107843037A (en) * | 2017-10-31 | 2018-03-27 | 广东美的暖通设备有限公司 | Multiple on-line system and its supercooling control device and method |
| CN208059150U (en) * | 2017-11-17 | 2018-11-06 | 深圳麦克维尔空调有限公司 | A kind of frequency-conversion air-conditioning system |
| CN108397942A (en) * | 2018-01-22 | 2018-08-14 | 宋静贤 | A kind of operation method of refrigeration system |
| CN108800634A (en) * | 2018-06-29 | 2018-11-13 | 重庆美的通用制冷设备有限公司 | Two stage centrifugal handpiece Water Chilling Units and its control method of level-one throttling, device |
| CN109357429A (en) * | 2018-09-21 | 2019-02-19 | 青岛海尔空调电子有限公司 | A kind of heat-reclamation multi-compressors cool-warm switching device, multi-connected machine and control method |
| CN109798627A (en) * | 2019-01-15 | 2019-05-24 | 广东美的暖通设备有限公司 | The control method and device of multi-line system |
| CN109915992A (en) * | 2019-02-28 | 2019-06-21 | 广东美的暖通设备有限公司 | The method and apparatus that multi-line system blowout prevention enthalpy pipeline returns liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110360780B (en) | 2020-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2008310483B2 (en) | Air conditioner | |
| CN109798701A (en) | Air-conditioner control system, air conditioning control method and air-conditioning for continuous heating | |
| EP2375188A1 (en) | Air conditioner | |
| WO2022193529A1 (en) | Multi-split air conditioning system | |
| CN101979938A (en) | Backheating method and backheating structure for heat pump air conditioner | |
| CN111442510B (en) | Multi-split air conditioning system, control method and control device thereof, and storage medium | |
| EP1526345B1 (en) | Refrigeration equipment | |
| JP2004044883A (en) | Air conditioner | |
| CN107388514A (en) | Air conditioner and its efficiency computational methods | |
| JP2012141098A (en) | Heat source system and its control method | |
| CN111189245A (en) | Special air conditioning device of frequency conversion constant temperature and humidity granary | |
| WO2020070793A1 (en) | Refrigeration cycle apparatus | |
| CN111503854B (en) | Air conditioning system, anti-condensation control method and device thereof, and storage medium | |
| JP5369953B2 (en) | Multi-room air conditioner performance calculator | |
| GB2557837A (en) | Refrigerant quantity management device and refrigerant quantity management system | |
| CN111486613B (en) | Air conditioning system, control method and device thereof and storage medium | |
| CN105571076B (en) | A kind of control method of water-cooled multi-connected mechanism cold | |
| CN110360780A (en) | Multi-line system and its degree of supercooling determine method, apparatus and equipment, storage medium | |
| CN107367032A (en) | Air conditioner and its efficiency computational methods | |
| CN209415615U (en) | Multi-line system | |
| Kang et al. | Experimental study on the performance of a simultaneous heating and cooling multi-heat pump with the variation of operation mode | |
| CN114909725A (en) | High-efficiency energy-saving multi-split system | |
| CN111473498B (en) | Air conditioning system, anti-condensation control method and device thereof, and storage medium | |
| CN210832348U (en) | Multi-connected refrigerating system | |
| CN114279101A (en) | Four-pipe system, control method and device and air conditioner |
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 |