CN207455816U - Air-conditioner set - Google Patents
Air-conditioner set Download PDFInfo
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- CN207455816U CN207455816U CN201721551887.9U CN201721551887U CN207455816U CN 207455816 U CN207455816 U CN 207455816U CN 201721551887 U CN201721551887 U CN 201721551887U CN 207455816 U CN207455816 U CN 207455816U
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- conditioner set
- compressor
- pressure balance
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Abstract
The utility model is related to a kind of air-conditioner set, including：The compressor (1) of formation system refrigerant circulation circuit, indoor heat exchanger (4), outdoor heat exchanger (2) and main throttling unit (3), the air-conditioner set further includes the pressure balance in parallel with the throttling pipeline where the main throttling unit (3) and bypasses, the throttling pipeline is configured as closing when the air-conditioner set is shut down, the pressure balance bypass is configured as opening when the air-conditioner set is shut down, so that the refrigerant in the system refrigerant circulation circuit is bypassed by the pressure balance and carries out pressure balance, and it is closed when refrigerant pressure difference is less than predetermined threshold value in the system refrigerant circulation circuit.The utility model is bypassed by closing pressure balance after pressure balance; the phenomenon that limiting refrigerant migration when being shut down under low-temperature condition, avoiding the compressor end that unit refrigerant in normal boot-strap is gathered in large quantities caused by outside that from can not establishing normal pressure of inspiration(Pi).
Description
Technical field
The utility model is related to field of air conditioning more particularly to a kind of air-conditioner sets.
Background technology
Refrigerant migration is the common problem that refrigeration air-conditioning unit faces.For example, after compressor emergency shutdown, because balance height
Pressure so it is not completely to shut that electric expansion valve is closed after a shutdown, can still retain few step number for balancing pressure.
Since outside temperature is relatively low, after system high-low pressure balance, refrigerant moves to low temperature side by high temperature side.When unit normal boot-strap
When, since refrigerant is largely gathered in the components such as the heat exchanger of outside, causes compressor end coolant quantity very few, cause compressor end
Normal pressure of inspiration(Pi) can not be established, unit can not normally start due to low-voltage variation.
In addition, if the components such as compressor are disposed in the outdoor machine, and outdoor environment is in low-temperature condition, then in unit
Refrigerant can also migrate into compressor after shutdown.The heating inside compressor after unit is opened compresses the refrigerant boiling of motor spindle, very
It is easy to cause compressor imbibition and generates liquid hammer.
Utility model content
The purpose of this utility model is to propose a kind of air-conditioner set, air-conditioner set can be overcome to shut down at low ambient temperatures
Afterwards, because of caused by refrigerant migration the problem of air-conditioner set start low-voltage variation.
To achieve the above object, the utility model provides a kind of air-conditioner set, including：Formation system refrigerant circulation circuit
Compressor, indoor heat exchanger, outdoor heat exchanger and main throttling unit, the air-conditioner set further includes and the main throttling unit
The pressure balance bypass of the throttling pipeline parallel connection at place, the throttling pipeline are configured as closing when the air-conditioner set is shut down
It closes, the pressure balance bypass is configured as opening when the air-conditioner set is shut down, so that the system refrigerant circulation circuit
Interior refrigerant is bypassed by the pressure balance and carries out pressure balance, and refrigerant pressure difference is low in the system refrigerant circulation circuit
It is closed when predetermined threshold value.
Further, the check valve and shut-off valve being connected in series, the check valve are equipped in pressure balance bypass
It can unidirectionally be opened when import reaches predetermined threshold value with the pressure difference exported, the shut-off valve is configured as in the air-conditioner set
Opened during shutdown, and in the system refrigerant circulation circuit refrigerant pressure difference be less than predetermined threshold value when close.
Further, pressure balance bypass includes at least two, and the pressure balance bypass of a part with it is another
The setting direction of check valve in the pressure balance bypass of a part is opposite.
Further, the throttling pipeline is additionally configured to open when the air-conditioner set is started shooting, the pressure balance
Bypass is additionally configured to remain off state when the air-conditioner set is started shooting.
Further, gas-liquid separator is further included, the gas-liquid separator is arranged in the suction line of the compressor,
The compressor is configured as running the first preset duration according to predeterminated frequency when the air-conditioner set is started shooting, with described in reduction
The coolant quantity that compressor is drawn in start from the gas-liquid separator, and according to the compression after first preset duration
The normal operating frequency operation of machine, the predeterminated frequency are less than the normal operating frequency of the compressor.
Further, the throttle for the upstream for being arranged on the gas-liquid separator is further included, the throttle is opened
It spends adjustable, and is configured as being adjusted to default aperture after when the air-conditioner set is started shooting, and maintain the second preset duration, to subtract
Enter the coolant quantity of the gas-liquid separator less and be adjusted to the throttle after second preset duration
Maximum opening, the default aperture are less than the maximum opening of the throttle.
Further, first preset duration is 3~10min, and second preset duration is 3~10min.
Further, the throttle is additionally configured to close when the air-conditioner set is shut down.
Further, the throttle includes electric expansion valve.
Further, the compressor is located outside side, and outside temperature is less than indoor temperature, in the compressor
Bottom is equipped with heating tape.
Further, the compressor is located at indoor, and outside temperature is less than indoor temperature.
Further, the predetermined threshold value is more than 0KPa.
Based on above-mentioned technical proposal, the utility model is on the throttle pipe road where main throttling unit by pressure balance in parallel
Road, and throttle pipe road and pressure balance is made to bypass and close and open respectively in compressor shutdown, it is bypassed by pressure balance
Pressure balance bypass is closed after the pressure balance of refrigerant in carry out system refrigerant circulation circuit.By being closed after pressure balance
Pressure balance bypasses, and limits refrigerant when being shut down under low-temperature condition between existing outdoor heat exchanger and indoor heat exchanger and moves
It moves, avoids the compressor end that unit refrigerant in normal boot-strap is gathered in large quantities caused by outside that from can not establishing normal suction
The phenomenon that atmospheric pressure, it is ensured that air-conditioner set can normally start without being absorbed in low-voltage variation.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms the part of the application,
The schematic description and description of the utility model is not formed for explaining the utility model to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the schematic block diagram of an embodiment of the utility model air-conditioner set.
Specific embodiment
Below by drawings and examples, the technical solution of the utility model is described in further detail.
As shown in Figure 1, the schematic block diagram of the embodiment for the utility model air-conditioner set.In the present embodiment,
Air-conditioner set includes：Compressor 1, indoor heat exchanger 4, outdoor heat exchanger 2 and the main throttling list of formation system refrigerant circulation circuit
Member 3.For supporting different air conditioning mode, indoor heat exchanger 4 and outdoor heat exchanger 2 played the role of it is different, such as
Indoor heat exchanger 4 carries out refrigerant condensation heat release in a heating mode, and outdoor heat exchanger 2 is evaporated refrigerant heat absorption, and
Indoor heat exchanger 4 is evaporated refrigerant heat absorption under refrigeration mode, and outdoor heat exchanger 2 carries out condensation heat release to refrigerant.And it compresses
Machine 1 and main throttling unit 3 then realize the compression process of refrigerant and decompression temperature-fall period respectively.
For main throttling unit 3, where throttle circuit be arranged between indoor heat exchanger 4 and outdoor heat exchanger 2,
The throttle circuit will not be completely closed when air-conditioner set is shut down in relevant programme, and need to retain a small number of apertures come for putting down
Weigh pressure.And in the present embodiment, air-conditioner set further includes the pressure in parallel with the throttling pipeline where the main throttling unit 3
Balance bypass, and the pipeline that throttles is configured as closing when the compressor 1 is shut down, and system is realized by pressure balance bypass
The pressure balance effect of refrigerant in refrigerant circulation circuit, i.e. pressure balance bypass are configured as when the compressor 1 is shut down
It opens, so that the refrigerant in the system refrigerant circulation circuit is bypassed by the pressure balance carries out pressure balance.In pressure
When (refrigerant pressure difference is less than predetermined threshold value i.e. in system refrigerant circulation circuit) in a basic balance, pressure balance bypass is closed.
The pressure difference for embodying pressure of inspiration(Pi) and pressure at expulsion of the refrigerant in unit operation depends primarily upon refrigerant type and fortune
Row operating mode.By taking R410A refrigerants as an example, pressure of inspiration(Pi) is generally 600KPa under nominal condition, and pressure at expulsion can reach 3.9MPa,
Pressure difference of the unit after just starting to shut down has the pressure difference close to 2MPa.Suction of the refrigerant after pressure balance bypasses final balance
Draught head close to 0KPa, actually unit there are small pressure difference in the case of still can normally start, such as the quick startup-shutdown of unit
Process still can normally start.Therefore the predetermined threshold value of foregoing refrigerant pressure difference, which can illustrate, is arranged to 30KPa, corresponding shut-off valve pressure
Power is set in 30Kpa, so as pressure difference≤30KPa of pressure balance bypass shut-off valve both sides, closes pressure balance bypass.
The predetermined threshold value may be set to be 0KPa, and to reach the time that 0KPa is consumed relatively long for pressure difference, therefore sets and be more than
One benefit of the predetermined threshold value of 0KPa is can to reduce the time spent by pressure balance to block refrigerant migration in the short time,
The reserved certain pressure difference surplus of another aspect is also prevented from pressure oscillation and reaches non-zero KPa, and pressure balance is caused to bypass shut-off valve
The problem of being unable to normal switching-off.
For the situation shut down under low temperature environment, since indoor and outdoor is there are the larger temperature difference, system refrigerant circulation circuit exists
After pressure balance there are still refrigerant to the outside of lower temperature migrate the phenomenon that, refrigerant is caused to gather in outdoor side apparatus
Collection, when air-conditioner set is started shooting, the refrigerant of indoor is very few to cause compressor that can not establish enough pressures of inspiration(Pi) in suction side,
Can not normally it start because of low-voltage variation so as to cause compressor.And the present embodiment is closed pressure after pressure is in a basic balance and is put down
Weighing apparatus bypass, either throttles pipeline at this time or pressure balance bypass is in closed state so that indoor and outside it
Between the passage of refrigerant migration be in off-state so that refrigerant will not migrate due to the temperature difference to low temperature one side, avoid
The compressor end that air-conditioner set refrigerant in normal boot-strap is gathered in large quantities caused by outside can not establish normal air-breathing
The phenomenon that pressure, it is ensured that air-conditioner set can normally start without being absorbed in low-voltage variation.
Until when air-conditioner set is started shooting, throttling pipeline can be opened, and the closed state that pressure balance is maintained to bypass, so as to
The decrease temperature and pressure that refrigerant is carried out using the main throttling unit 3 in throttling pipeline is acted on.The closing and unlatching of throttling pipeline can lead to
Cross main throttling unit 3 itself opening and closing realize, can also by connect on throttle pipe road with main throttling unit 3 its
He realizes element (such as shut-off valve etc.).The restricting element that can realize throttling action, such as electricity may be employed in main throttling unit 3
Sub- expansion valve or capillary etc..
With reference to figure 1, check valve b1, b2 for being connected in series and shut-off valve a1, a2 can be equipped in pressure balance bypass.Unidirectionally
Valve b1, b2 can unidirectionally be opened when import reaches predetermined threshold value with the pressure difference exported, and described shut-off valve a1, a2 are configured as
The compressor 1 is opened when shutting down, and when refrigerant pressure difference is less than predetermined threshold value in the system refrigerant circulation circuit closes.When
When shut-off valve a1, a2 are opened, the pressure differential at throttling pipeline both ends can be such that check valve b1, b2 unidirectionally opens, and realize indoor heat exchange
The pressure balance effect of system refrigerant between device 4 and outdoor heat exchanger 2, and after the two pressure is in a basic balance, it changes indoors
The temperature difference of hot device 4 and the refrigerant in outdoor heat exchanger 2 still can cause refrigerant to be migrated from one lateral low temperature one side of high temperature, at this time
By closing shut-off valve a1, a2, then migration of the refrigerant under temperature difference effect can be limited.
In Fig. 1, four-way valve 5 in air-conditioner set can be set, select to discharge on compressor 1 using the switching of four-way valve 5
Refrigerant flow into outdoor heat exchanger 2 or indoor heat exchanger 4, to realize different air conditioning modes, such as refrigeration mode and heating
Pattern.Since the refrigerant type of flow of system refrigerant circulation circuit under refrigeration mode and heating mode has differences, especially room
The flow direction of throttling pipeline between external heat exchanger 2 and indoor heat exchanger 4 is different, therefore in an air-conditioner set embodiment, pressure
Dynamic balance bypass includes at least two.A part pressure balance bypass in check valve b1 and another part pressure balance by
The setting direction of check valve b2 in road is opposite.In this way, when air-conditioner set is switched to heating mode, put due to playing condensation at this time
The pressure of the indoor heat exchanger 4 of heat effect has been higher than the outdoor heat exchanger 2 of evaporation endothermic effect, therefore the pressure differential can make list
It is opened to valve b1, refrigerant is made to flow to outdoor heat exchanger 2 to realize pressure balance.And when air-conditioner set is switched to refrigeration mode,
Since the pressure for the outdoor heat exchanger 2 for playing condensation exothermic effects at this time has been higher than the indoor heat exchanger 4 of evaporation endothermic,
The pressure differential can open check valve b2, and refrigerant is made to flow to indoor heat exchanger 4 to realize pressure balance.
In another embodiment, air-conditioner set can also only support a kind of mould in refrigeration mode or heating mode etc.
Formula, the pressure balance for the check valve that can have identical setting direction only with one or more accordingly bypass.In addition, in sky
Oil eliminator 9 can also be included by adjusting in unit, be arranged on the gas exhaust piping of compressor 1, with reference to figure 1, can be located at pressure
Between the exhaust outlet of contracting machine 1 and four-way valve 5.It can be set on the pipeline being sequentially communicated in compressor 1, oil eliminator 9, four-way valve 5
Check valve is put, is back to avoid refrigerant and lubricating oil in compressor 1.
For split type air-conditioner set, compressor 1 can select to set according to realization principle or application scenarios
Put side indoors or outside.Under the relatively low situation of outdoor environment temperature, compressor 1 is disposed in the outdoor side and indoor
There are certain differences for refrigerant migration.For example, side is located outside for compressor, and outside temperature is less than indoor temperature
The air conditioner with air-source heat pump group of degree when refrigerant is migrated to outdoor unit, flows mostly to gas-liquid separator 6, the compression of outside
Machine 1 and outdoor heat exchanger 2, if compressor, which is moved to the interior, moves past more refrigerants, and these refrigerants can be when air-conditioner set be started shooting because of compression
Machine generates heat and seethes with excitement, and be easy to cause compressor imbibition and generates liquid hammer.Therefore can heating tape be set in 1 bottom of compressor, with
Compressor 1 is made to maintain certain internal temperature, reduces coolant quantity of the refrigerant to 1 internal migration of compressor.
For example, it is located at indoor, such as air conditioner in machine room for compressor, due to special workability
Matter, it is desirable that no matter how low outside temperature have, and indoor a large amount of computers and server still need to freeze.It is needed when overhaul of the equipments
Air-conditioner set is wanted to shut down, then since outdoor temperature is relatively low, refrigerant can be migrated to outside, and such outside can not be kept away
That exempts from has more refrigerant.And side is easy to inhale and less than enough refrigerants causes pressure of inspiration(Pi) too low compressor indoors,
Cause low-voltage variation.
In order to solve the problems, such as this, in another embodiment of the utility model air-conditioner set, air-conditioner set can also wrap
Include gas-liquid separator 6.The gas-liquid separator 6 is arranged in the suction line of the compressor 1, and effect is to reduce compressor 1 to inhale
Enter the possibility of liquid refrigerants.In a period of time after air-conditioner set start, the refrigerant that compressor 1 sucks at first is gas-liquid point
From the refrigerant in device 6, the internal pressure of gas-liquid separator 6 can rapid decrease at this time.If the refrigerant at this time in air-conditioner set is big
Part has moved to outdoor heat exchanger 2, then refrigerant can flow into gas-liquid separator 6 by outdoor heat exchanger 2 in a heating mode, then
Compressor 1 is flowed into from gas-liquid separator 6.The refrigerant in outdoor heat exchanger 2 can pour in gas-liquid separator 6 at this time, in gas-liquid
It separates liquid refrigerants under incomplete situation to be easy to be inhaled into compressor 1, so as to cause compressor liquid hammer.
In order to control the coolant quantity for entering gas-liquid separator 6, compressor 1 can be configured as starts shooting in the compressor 1
When according to predeterminated frequency run the first preset duration, with reduce the compressor 1 start when drawn from the gas-liquid separator 6
Coolant quantity, and after first preset duration according to the compressor 1 normal operating frequency run, the predeterminated frequency
Less than the normal operating frequency of the compressor 1.For example, by compressor 1 after powering 3~10min be arranged to it is relatively low
Running frequency, according to such as 30~50% predeterminated frequency run, with reduce compressor 1 sucked from gas-liquid separator 6 it is cold
Matchmaker measures, and reduces the decrease speed of the internal pressure of gas-liquid separator 6 so that pressure difference foundation is gentler, and then makes gas-liquid separation
Device 6 is not easy to suck excessive refrigerant from outdoor heat exchanger 2, so as to reduce the probability of compressor liquid hammer generation.Until system is cold
When the pressure difference established in matchmaker's circulation loop is normal, then the running frequency of compressor 1 can be reverted to normal operating frequency, so as to
It is improved the ability of air-conditioner set.
In order to further control the coolant quantity into gas-liquid separator 6, in another embodiment, air-conditioner set can be with
Further comprise the throttle 7 for being arranged on the upstream of gas-liquid separator 6.The aperture of the throttle 7 is adjustable, and is configured as
Default aperture is adjusted to after when the compressor 1 is started shooting, and maintains the second preset duration, enters the gas-liquid separation to reduce
The coolant quantity of device 6 and the maximum opening of the throttle 7 is being adjusted to after second preset duration, it is described pre-
If aperture is less than the maximum opening of the throttle 7.For example, throttle 7 is adjusted to after air-conditioner set start
Relatively low aperture, such as 30%, then maintain 3~10min of this aperture.During this section, since the throttling of throttle 7 is made
With the refrigerant in outdoor heat exchanger 2 can only enter gas-liquid separator 6 with smaller flow, this enables gas-liquid separator 6
Complete the gas-liquid separation of refrigerant, it is ensured that liquid refrigerants will not be entered in compressor 1 as far as possible, reduce the generation machine of compressor liquid hammer
Rate.In addition, the aperture control of throttle 7 can also coordinate the adjustment of the running frequency of compressor, to realize into gas-liquid point
The more effective control of coolant quantity from device 6 reduces the Probability of compressor liquid hammer to a greater degree.
In order to control the refrigerant migration between outdoor heat exchanger 2 or indoor heat exchanger 4 and gas-liquid separator 6, preferably envoy
Stream valve 7 is closed when the compressor 1 is shut down.The aperture of throttle is adjustable, preferably includes the electronic expansion convenient for control
Valve.
In the above-described embodiments, the default aperture of the predeterminated frequency of compressor 1, the first preset duration and throttle 7,
Two preset durations can make choice and determine according to factors such as hydraulic test, the model of element, unit capacity, refrigerant types.
It is preferred that the first preset duration is 3~10min, the second preset duration is 3~10min, can either so make the system of air-conditioner set
Refrigerant circulation circuit has enough time to establish stable pressure difference relation, and air-conditioner set long-time capabilities can be avoided to run.
In addition, above-described embodiment the control of compressor frequency and throttle aperture is applicable not only to when unit is started shooting it is foregoing
The example of heating mode is readily applicable to the situation that refrigeration mode and compressor are disposed in the outdoor, can reduce compression
The Probability of machine liquid hammer, just repeats no more here.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
Among scope.
Claims (12)
1. a kind of air-conditioner set, which is characterized in that including：Compressor (1), the indoor heat exchanger of formation system refrigerant circulation circuit
(4), outdoor heat exchanger (2) and main throttling unit (3), the air-conditioner set further include with where the main throttling unit (3)
The pressure balance bypass of throttling pipeline parallel connection, the throttling pipeline is configured as closing when the air-conditioner set is shut down, described
Pressure balance bypass is configured as opening when the air-conditioner set is shut down, so that the refrigerant in the system refrigerant circulation circuit
It is bypassed by the pressure balance and carries out pressure balance, and refrigerant pressure difference is less than default threshold in the system refrigerant circulation circuit
It is closed during value.
2. air-conditioner set according to claim 1, which is characterized in that be equipped with and be connected in series in pressure balance bypass
Check valve (b1, b2) and shut-off valve (a1, a2), the check valve (b1, b2) can import and outlet pressure difference reach pre-
If unidirectionally being opened during threshold value, the shut-off valve (a1, a2) is configured as opening when the air-conditioner set is shut down, and in the system
It is closed when refrigerant pressure difference is less than predetermined threshold value in system refrigerant circulation circuit.
3. air-conditioner set according to claim 2, which is characterized in that the pressure balance is bypassed including at least two, and
The pressure balance bypass of a part is opposite with the setting direction of the check valve in the pressure balance bypass of another part.
4. air-conditioner set according to claim 1, which is characterized in that the throttling pipeline is additionally configured in the air-conditioning
Unit is opened when starting shooting, and the pressure balance bypass is additionally configured to remain off state when the air-conditioner set is started shooting.
5. air-conditioner set according to claim 1, which is characterized in that further include gas-liquid separator (6), the gas-liquid separation
Device (6) is arranged in the suction line of the compressor (1), and the compressor (1) is configured as starting shooting in the air-conditioner set
When according to predeterminated frequency run the first preset duration, to reduce the compressor (1) in start from the gas-liquid separator (6)
The coolant quantity of absorption, and run after first preset duration according to the normal operating frequency of the compressor (1), it is described pre-
If frequency is less than the normal operating frequency of the compressor (1).
6. air-conditioner set according to claim 5, which is characterized in that further include and be arranged on the gas-liquid separator (6)
The throttle (7) of upstream, the aperture of the throttle (7) is adjustable, and after being configured as when the air-conditioner set is started shooting
Default aperture is adjusted to, and maintains the second preset duration, to reduce the coolant quantity into the gas-liquid separator (6), Yi Ji
The maximum opening of the throttle (7) is adjusted to after second preset duration, the default aperture is less than the section
Flow the maximum opening of valve (7).
7. air-conditioner set according to claim 6, which is characterized in that first preset duration is 3~10min, described
Second preset duration is 3~10min.
8. air-conditioner set according to claim 6, which is characterized in that the throttle (7) is additionally configured to described
Air-conditioner set is closed when shutting down.
9. air-conditioner set according to claim 6, which is characterized in that the throttle (7) includes electric expansion valve.
10. air-conditioner set according to claim 1, which is characterized in that the compressor (1) is located outside side, and outdoor
Side temperature is less than indoor temperature, and heating tape is equipped in the compressor (1) bottom.
11. air-conditioner set according to claim 5, which is characterized in that the compressor (1) is located at indoor, and outdoor
Side temperature is less than indoor temperature.
12. air-conditioner set according to claim 1, which is characterized in that the predetermined threshold value is more than 0KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551887.9U CN207455816U (en) | 2017-11-20 | 2017-11-20 | Air-conditioner set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551887.9U CN207455816U (en) | 2017-11-20 | 2017-11-20 | Air-conditioner set |
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| Publication Number | Publication Date |
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| CN207455816U true CN207455816U (en) | 2018-06-05 |
Family
ID=62280503
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721551887.9U Active CN207455816U (en) | 2017-11-20 | 2017-11-20 | Air-conditioner set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763776A (en) * | 2017-11-20 | 2018-03-06 | 珠海格力电器股份有限公司 | Air-conditioner set and refrigerant migration control method |
| CN109282516A (en) * | 2018-09-05 | 2019-01-29 | 珠海格力电器股份有限公司 | Air-cooled screw unit and its control method |
| CN115167558A (en) * | 2022-06-23 | 2022-10-11 | 北京京仪自动化装备技术股份有限公司 | Control method and control system of temperature control system and temperature control system |
-
2017
- 2017-11-20 CN CN201721551887.9U patent/CN207455816U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763776A (en) * | 2017-11-20 | 2018-03-06 | 珠海格力电器股份有限公司 | Air-conditioner set and refrigerant migration control method |
| CN109282516A (en) * | 2018-09-05 | 2019-01-29 | 珠海格力电器股份有限公司 | Air-cooled screw unit and its control method |
| CN109282516B (en) * | 2018-09-05 | 2020-06-26 | 珠海格力电器股份有限公司 | Air-cooled screw unit and control method thereof |
| CN115167558A (en) * | 2022-06-23 | 2022-10-11 | 北京京仪自动化装备技术股份有限公司 | Control method and control system of temperature control system and temperature control system |
| CN115167558B (en) * | 2022-06-23 | 2023-11-17 | 北京京仪自动化装备技术股份有限公司 | Control method and control system of temperature control system and temperature control system |
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