CN103604193A - Multi-outdoor-unit air conditioning pressure balancing device and pressure balancing control method - Google Patents
Multi-outdoor-unit air conditioning pressure balancing device and pressure balancing control method Download PDFInfo
- Publication number
- CN103604193A CN103604193A CN201310597014.1A CN201310597014A CN103604193A CN 103604193 A CN103604193 A CN 103604193A CN 201310597014 A CN201310597014 A CN 201310597014A CN 103604193 A CN103604193 A CN 103604193A
- Authority
- CN
- China
- Prior art keywords
- air
- pressure
- outdoor unit
- conditioner outdoor
- conditioner
- 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
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a multi-outdoor-unit air conditioning pressure balancing device which comprises air conditioning outdoor units used for exchanging of air conditioning energy and at least two air conditioning indoor units. The air conditioning outdoor units at least include a first air conditioning outdoor unit and a second air conditioning outdoor unit, the first air conditioning outdoor unit comprises a first heat exchanger and corresponds to first output pressure, the first heat exchanger has a first heat exchanging area, the second air conditioning outdoor unit comprises a second heat exchanger and corresponds to second output pressure, the second heat exchanger has a second heat exchanging area, the first heat exchanging area and the first output pressure are in proportional relation and the second heat exchanging area and the second output pressure are in proportional relation to guarantee refrigerant pressure difference between first outdoor unit high pressure of the first air conditioning outdoor unit and second outdoor unit high pressure of the second air conditioning outdoor unit to be within a preset threshold range, and the air conditioning indoor units are in matched arrangement and connection with the air conditioning outdoor units and used for exchanging of air conditioning energy.
Description
Technical field
The present invention relates to technical field of heat exchange, particularly the outer air conditioner pressure equaliser of a kind of multicell and control method for pressure balance.
Background technology
Air-conditioning is a kind of for the equipment of processing air temperature variations is provided to closed area, especially room space region, and it can be for regulating parameters such as the air themperature of area of space, humidity, cleanliness factor and air velocitys.
But, when two off-premises stations 11 and 12 couple together operation, if pressure imbalance, operation that just could not normal reliable ground.When all according to the operation of same rotating speed, because the refrigerating capacity of off-premises station 11 is lower than off-premises station 12, the refrigerant high pressure of this off-premises station 11 also will be lower than off-premises station 12, thereby in running, the refrigerant high pressure of this off-premises station 11 can progressively be elevated to the refrigerant high pressure phase of off-premises station 12 same or close, increase the power that chamber off-premises station 11 consumes, reduced the Energy Efficiency Ratio of off-premises station 11.
Summary of the invention
The embodiment of the present invention provides the outer air conditioner pressure equaliser of a kind of multicell and control method for pressure balance, for solving prior art when two off-premises station refrigerating capacities are different, the technical problem that the pressure imbalance of one of them off-premises station and Energy Efficiency Ratio are not high.
Embodiments of the invention 1, for the outer air conditioner pressure equaliser of a kind of multicell, comprising: for air-conditioner outdoor unit and the indoor apparatus of air conditioner of energy exchange; Air-conditioner outdoor unit at least comprises: the first air-conditioner outdoor unit and the second air-conditioner outdoor unit, and the first air-conditioner outdoor unit comprises again: First Heat Exchanger, corresponding the first output pressure of the first air-conditioner outdoor unit and First Heat Exchanger have the first heat exchange area; The second air-conditioner outdoor unit comprises: the second heat exchanger, and corresponding the second output pressure of the second air-conditioner outdoor unit and the second heat exchanger have the second heat exchange area; Wherein, between the first heat exchange area and the first output pressure, the second heat exchange area and the second output pressure, be proportionate relationship, with the refrigerant pressure differential that guarantees the first off-premises station high pressure of the first air-conditioner outdoor unit and the second off-premises station high pressure of the second air-conditioner outdoor unit within the scope of predetermined threshold value; Indoor apparatus of air conditioner at least comprises: in the first indoor apparatus of air conditioner and the second air conditioning chamber, and arrange and be connected with at least two air-conditioner outdoor unit couplings.
Further, by the running frequency to air-conditioner outdoor unit, control, reach air conditioner coolant and press equilibrium of forces, the outer air conditioner pressure equaliser of multicell described in this, also comprise: control module, for controlling the running frequency of described the first air-conditioner outdoor unit, and control the running frequency of described the second air-conditioner outdoor unit, by the control of frequency is reached to refrigerant pressure differential within the scope of predetermined threshold value.
More preferably, for accurately controlling the pressure of refrigerant, above-mentioned control module is for controlling the first air quantity of the first off-premises station and the second air quantity of the second off-premises station, by the control of air quantity is reached to refrigerant pressure differential within the scope of predetermined threshold value.
Further, by controlling the rotating speed of the compressor of off-premises station, control the pressure of the refrigerant of air-conditioner outdoor unit, be specially above-mentioned control module, for detection of described the first off-premises station high pressure and described the second off-premises station high pressure; And when definite described the first off-premises station high pressure is less than described the second off-premises station high pressure, adjust the first rotating speed of described the first air-conditioner outdoor unit and/or the second rotating speed of described the second air-conditioner outdoor unit, so that the described refrigerant pressure differential of described the first off-premises station high pressure and described the second off-premises station high pressure is within the scope of described predetermined threshold value.
Further, its pressure differential of described adjusting, in the threshold range allowing, specifically comprises following step: by negative feedback control, adjust the operating frequency of described compressor, to keep described pressure differential in the threshold range of described permission.
Further, described method also comprises following step: detect the air-conditioning high pressure of described air-conditioner outdoor unit, and control described air-conditioning high pressure in described safe threshold range; Or detect the air-conditioning low-pressure of described air-conditioner outdoor unit, and control described air-conditioning low-pressure in described safe threshold range.
Beneficial effect of the present invention is as follows:
Because the first air-conditioner outdoor unit in air conditioner pressure equaliser outside the disclosed multicell of the embodiment of the present invention comprises First Heat Exchanger, and First Heat Exchanger has the first heat exchange area, the second air-conditioner outdoor unit comprises the second heat exchanger, and the second heat exchanger has the second heat exchange area, and the first output pressure of the first heat exchange area and the first air-conditioner outdoor unit, the second output pressure of the second heat exchange area and the second air-conditioner outdoor unit is proportionate relationship, so can guarantee that the refrigerant pressure differential of the first off-premises station high pressure of the first air-conditioner outdoor unit and the second off-premises station high pressure of described the second air-conditioner outdoor unit is within the scope of predetermined threshold value.If the rotating speed of off-premises station is reduced, not only can not increase the power that off-premises station consumes, can reduce on the contrary the power that off-premises station consumes, if the rotating speed of off-premises station is raise, although can increase the power that off-premises station consumes, but can not reduce the Energy Efficiency Ratio of chamber off-premises station, obviously than prior art, save energy, and improved efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the outer air conditioner pressure equaliser of multicell in the embodiment of the present invention;
Fig. 2 is the flow chart of pressure balance method in the embodiment of the present invention.
The specific embodiment
In order to solve the technical problem of the outer air conditioner pressure equaliser pressure imbalance of multicell in prior art, the embodiment of the invention discloses the outer air conditioner pressure equaliser of a kind of multicell, comprising: for air-conditioner outdoor unit and the indoor apparatus of air conditioner of energy exchange; Air-conditioner outdoor unit at least comprises: the first air-conditioner outdoor unit and the second air-conditioner outdoor unit, and the first air-conditioner outdoor unit comprises again: First Heat Exchanger, corresponding the first output pressure of the first air-conditioner outdoor unit and First Heat Exchanger have the first heat exchange area; The second air-conditioner outdoor unit comprises: the second heat exchanger, and corresponding the second output pressure of the second air-conditioner outdoor unit and the second heat exchanger have the second heat exchange area; Wherein, between the first heat exchange area and the first output pressure, the second heat exchange area and the second output pressure, be proportionate relationship, with the refrigerant pressure differential that guarantees the first off-premises station high pressure of the first air-conditioner outdoor unit and the second off-premises station high pressure of the second air-conditioner outdoor unit within the scope of predetermined threshold value; Indoor apparatus of air conditioner at least comprises: in the first indoor apparatus of air conditioner and the second air conditioning chamber, and arrange and be connected with at least two air-conditioner outdoor unit couplings.
Due in such scheme, the first output pressure of the first heat exchange area and the first air-conditioner outdoor unit, the proportional routine relation of the second output pressure of the second heat exchange area and the second air-conditioner outdoor unit, so can guarantee that the refrigerant pressure differential of the first off-premises station high pressure of the first air-conditioner outdoor unit and the second off-premises station high pressure of described the second air-conditioner outdoor unit is within the scope of predetermined threshold value, if the rotating speed of off-premises station is reduced, not only can not increase the power that chamber off-premises station consumes, can reduce on the contrary the power that chamber off-premises station consumes, if the rotating speed of off-premises station is raise, although can increase the power that chamber off-premises station consumes, but can not reduce the Energy Efficiency Ratio of chamber off-premises station, obviously than prior art, save energy, and improved efficiency.
On the one hand, the embodiment of the present invention provides a kind of multicell outer air conditioner pressure equaliser, please refer to Fig. 1, specifically comprises:
At least two air-conditioner outdoor units 11 and 12, for exchange heat; In described at least two air-conditioner outdoor units, at least comprise: the first air-conditioner outdoor unit 11 and the second air-conditioner outdoor unit 12, described the first air-conditioner outdoor unit 11 comprises: First Heat Exchanger 11a, and corresponding the first output pressure of described the first air-conditioner outdoor unit 11 and described First Heat Exchanger 11a have the first heat exchange area; Described the second air-conditioner outdoor unit 12 comprises: the second heat exchanger 12a, corresponding the second output pressure of described the second air-conditioner outdoor unit 12 and corresponding the second output pressure of described the second heat exchanger 12a; Wherein, between described the first heat exchange area and described the first output pressure, described the second heat exchange area and described the second output pressure, be proportionate relationship, with the refrigerant pressure differential that guarantees the first off-premises station high pressure of described the first air-conditioner outdoor unit 11 and the second off-premises station high pressure of described the second air-conditioner outdoor unit 12 within the scope of predetermined threshold value;
At least two indoor apparatus of air conditioner 21 and 22, arrange and are connected with described at least two air-conditioner outdoor units coupling, for exchange heat.
In specific implementation process, the outer air conditioner pressure equaliser of described multicell, also comprises:
Control chip, the frequency that is less than predeterminated frequency value for controlling the difference of described the first air-conditioner outdoor unit 11 and described the second air-conditioner outdoor unit 12 proportions is moved.
In specific implementation process, the difference of the first air-conditioner outdoor unit 11 and the second air-conditioner outdoor unit 12 proportions be less than predeterminated frequency frequency while moving, if power output is higher in the first air-conditioner outdoor unit 11 and the second air-conditioner outdoor unit 12, to cause so its refrigerant high pressure for high, so for the difference that guarantees the refrigerant high pressure between the first air-conditioner outdoor unit 11 and the second air-conditioner outdoor unit 12 is within the scope of predetermined threshold value, can increase the heat exchange area of the air-conditioner outdoor unit that power output is high so, that is to say: when design air-conditioner outdoor unit, described the first heat exchange area and described the first output pressure, between described the second heat exchange area and described the second output pressure, be proportionate relationship, for example: suppose that the first output pressure is less than the second output pressure, so outside design multicell during air conditioner pressure equaliser, by second heat exchange area that is less than of the first heat exchange area design.
As a preferred embodiment, between described the first output pressure, described the second heat exchange area and described the second output pressure, be following corresponding relation:
The first power output/the first area of dissipation=the second power output/the second area of dissipation
Described control chip, also for: control described the first air quantity and described the first output pressure, described the second air quantity and the proportional relation of described the second output pressure.
In specific implementation process, the outer air conditioner pressure equaliser of described multicell, also comprises:
Control chip, for detection of described the first off-premises station high pressure and described the second off-premises station high pressure; And
When definite described the first off-premises station high pressure is less than described the second off-premises station high pressure, adjust the first rotating speed of described the first air-conditioner outdoor unit and/or the second rotating speed of described the second air-conditioner outdoor unit, so that the difference of described the first off-premises station high pressure and described the second off-premises station high pressure is within the scope of described predetermined threshold value.
On the other hand, the embodiment of the present invention provides a kind of pressure balance method, and a kind of control method for pressure balance of the outer air conditioner pressure equaliser of multicell that the arbitrary embodiment of the method use the present invention introduces, please refer to Fig. 2, and the method comprises the following steps:
Step S201: detect the high-pressure of air-conditioner outdoor unit, calculating pressure is poor;
Step S202: take pressure differential as Variable Control, the rotating speed of the compressor that pressure is higher;
Step S203: regulate its pressure differential in the threshold range allowing.
As further preferred embodiment, in step S203, its pressure differential of described adjusting, in the threshold range allowing, specifically comprises following step:
By negative feedback control, adjust the operating frequency of described compressor, to keep described pressure differential in the threshold range of described permission.
In further preferred embodiment, described method also comprises following step:
Detect the air-conditioning high pressure of described air-conditioner outdoor unit, and control described air-conditioning high pressure in described safe threshold range; Or
Detect the air-conditioning low-pressure of described air-conditioner outdoor unit, and control described air-conditioning low-pressure in described safe threshold range.
One or more technical schemes that the application provides, at least have following technique effect or advantage:
Because the first air-conditioner outdoor unit in air conditioner pressure equaliser outside the multicell providing in the embodiment of the present invention comprises First Heat Exchanger and compressor, and First Heat Exchanger has the first heat exchange area, the second air-conditioner outdoor unit comprises the second heat exchanger and compressor, and the second heat exchanger has the second heat exchange area, and the first output pressure of the first heat exchange area and the first air-conditioner outdoor unit, the second output pressure of the second heat exchange area and the second air-conditioner outdoor unit is proportionate relationship, so can guarantee that the refrigerant pressure differential of the first off-premises station high pressure of the first air-conditioner outdoor unit and the second off-premises station high pressure of described the second air-conditioner outdoor unit is within the scope of predetermined threshold value, guarantee the normal operation of air-conditioning.
Claims (7)
1. the outer air conditioner pressure equaliser of multicell, is characterized in that, comprising: for air-conditioner outdoor unit and the indoor apparatus of air conditioner of energy exchange; Air-conditioner outdoor unit at least comprises: the first air-conditioner outdoor unit and the second air-conditioner outdoor unit, and the first air-conditioner outdoor unit comprises again: First Heat Exchanger, corresponding the first output pressure of the first air-conditioner outdoor unit and First Heat Exchanger have the first heat exchange area; The second air-conditioner outdoor unit comprises: the second heat exchanger, and corresponding the second output pressure of the second air-conditioner outdoor unit and the second heat exchanger have the second heat exchange area; Wherein, between the first heat exchange area and the first output pressure, the second heat exchange area and the second output pressure, be proportionate relationship, with the refrigerant pressure differential that guarantees the first off-premises station high pressure of the first air-conditioner outdoor unit and the second off-premises station high pressure of the second air-conditioner outdoor unit within the scope of predetermined threshold value; Indoor apparatus of air conditioner at least comprises: the first indoor apparatus of air conditioner and the second indoor apparatus of air conditioner, and arrange and be connected with at least two air-conditioner outdoor unit couplings.
2. the outer air conditioner pressure equaliser of multicell as claimed in claim 1, is characterized in that, the outer air conditioner pressure equaliser of described multicell, also comprises:
Control module, for controlling the running frequency of described the first air-conditioner outdoor unit, and controls the running frequency of described the second air-conditioner outdoor unit, by the control of frequency is reached to refrigerant pressure differential within the scope of predetermined threshold value.
3. the outer air conditioner pressure equaliser of multicell as claimed in claim 2, it is characterized in that: described control module, also for controlling the first air quantity of the first off-premises station and the second air quantity of the second off-premises station, by the control of air quantity is reached to refrigerant pressure differential within the scope of predetermined threshold value.
4. the outer air conditioner pressure equaliser of multicell as claimed in claim 1, is characterized in that, the outer air conditioner pressure equaliser of described multicell, also comprises:
Control module, for detection of described the first off-premises station high pressure and described the second off-premises station high pressure; And
When definite described the first off-premises station high pressure is less than described the second off-premises station high pressure, adjust the first rotating speed of described the first air-conditioner outdoor unit and/or the second rotating speed of described the second air-conditioner outdoor unit, so that the described refrigerant pressure differential of described the first off-premises station high pressure and described the second off-premises station high pressure is within the scope of described predetermined threshold value.
5. a kind of control method for pressure balance of the outer air conditioner pressure equaliser of right to use 1,2,3 or 4 arbitrary multicells, is characterized in that: comprise following step:
The high-pressure that detects air-conditioner outdoor unit, calculating pressure is poor;
Take pressure differential as Variable Control, the rotating speed of the compressor that pressure is higher;
Regulate its pressure differential in the threshold range allowing.
6. a kind of control method for pressure balance of the outer air conditioner pressure equaliser of a kind of multicell as claimed in claim 5, is characterized in that: its pressure differential of described adjusting, in the threshold range allowing, specifically comprises following step:
By negative feedback control, adjust the operating frequency of described compressor, to keep described pressure differential in the threshold range of described permission.
7. a kind of control method for pressure balance of the outer air conditioner pressure equaliser of a kind of multicell as described in claim 5 or 6, is characterized in that: described method also comprises following step:
Detect the air-conditioning high pressure of described air-conditioner outdoor unit, and control described air-conditioning high pressure in described safe threshold range; Or
Detect the air-conditioning low-pressure of described air-conditioner outdoor unit, and control described air-conditioning low-pressure in described safe threshold range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597014.1A CN103604193B (en) | 2013-11-22 | 2013-11-22 | The outer air conditioner pressure equaliser of a kind of multicell and control method for pressure balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597014.1A CN103604193B (en) | 2013-11-22 | 2013-11-22 | The outer air conditioner pressure equaliser of a kind of multicell and control method for pressure balance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103604193A true CN103604193A (en) | 2014-02-26 |
| CN103604193B CN103604193B (en) | 2016-03-30 |
Family
ID=50122440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310597014.1A Active CN103604193B (en) | 2013-11-22 | 2013-11-22 | The outer air conditioner pressure equaliser of a kind of multicell and control method for pressure balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103604193B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121249A (en) * | 2019-12-26 | 2020-05-08 | 宁波奥克斯电气股份有限公司 | Control method and control device of multi-split system and multi-split system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113854A (en) * | 2006-07-26 | 2008-01-30 | 海尔集团公司 | Oil equalizing and coolant counterbalancing system of multiple air-conditioning unit and controlling method thereof |
| EP2369270A1 (en) * | 2010-03-10 | 2011-09-28 | LG Electronics | Air conditioning system and method for calculating amount of filling refrigerants of the same |
| CN102914026A (en) * | 2012-09-20 | 2013-02-06 | 宁波奥克斯电气有限公司 | Control method for preventing refrigerant of outdoor unit of multi-linkage air conditioning unit from deflecting during heating |
| CN102997381A (en) * | 2013-01-07 | 2013-03-27 | 四川长虹电器股份有限公司 | Air-conditioning control system |
-
2013
- 2013-11-22 CN CN201310597014.1A patent/CN103604193B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113854A (en) * | 2006-07-26 | 2008-01-30 | 海尔集团公司 | Oil equalizing and coolant counterbalancing system of multiple air-conditioning unit and controlling method thereof |
| EP2369270A1 (en) * | 2010-03-10 | 2011-09-28 | LG Electronics | Air conditioning system and method for calculating amount of filling refrigerants of the same |
| CN102914026A (en) * | 2012-09-20 | 2013-02-06 | 宁波奥克斯电气有限公司 | Control method for preventing refrigerant of outdoor unit of multi-linkage air conditioning unit from deflecting during heating |
| CN102997381A (en) * | 2013-01-07 | 2013-03-27 | 四川长虹电器股份有限公司 | Air-conditioning control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121249A (en) * | 2019-12-26 | 2020-05-08 | 宁波奥克斯电气股份有限公司 | Control method and control device of multi-split system and multi-split system |
| CN111121249B (en) * | 2019-12-26 | 2021-12-10 | 宁波奥克斯电气股份有限公司 | Control method and control device of multi-split system and multi-split system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103604193B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107238174B (en) | Method and device for controlling frequency of compressor | |
| US10006649B2 (en) | Air-conditioning system | |
| CN105674472B (en) | The refrigeration control method and device of computer room | |
| CN102914025B (en) | Method for controlling direct current frequency conversion air-conditioner while operating in refrigeration mode | |
| CN104019528B (en) | The energy-efficient operating control algolithm of convertible frequency air-conditioner | |
| CN105509245B (en) | Air conditioning system and standby control method and device for air conditioning outdoor unit of air conditioning system | |
| CN203231423U (en) | Air conditioner with function of automatically adjusting quantity of refrigerants of system | |
| US10753664B2 (en) | Method and apparatus for reheat dehumidification with variable speed outdoor fan | |
| CN104006497B (en) | The control method and device of the cold medium flux of multi-split air conditioner | |
| CN105953369B (en) | Variable frequency air conditioner control method and device | |
| CN103884140A (en) | Method and system for controlling discharge superheat degree of air conditioning compressor | |
| CN104807139A (en) | Control method of air conditioner and control device | |
| CN204128064U (en) | A kind of energy-saving precision air-conditioning | |
| CN107664339B (en) | Control method and device for cooling water pump of central air conditioner and central air conditioner | |
| CN104006489A (en) | Air conditioning system as well as air conditioner control device and refrigerating method thereof | |
| CN103925668A (en) | Direct-current frequency conversion constant-temperature and humidity set achieving condensation heat recovery and heat and humidity separation control method | |
| CN103822303A (en) | Energy-saving variable working condition air-conditioning system with precisely adjustable whole range and control method thereof | |
| CN205208841U (en) | Air conditioner | |
| CN106403143B (en) | Temperature and humidity independent processing air conditioning system and control method thereof | |
| US20200200452A1 (en) | Method and apparatus for common manifold charge compensator | |
| CN210900104U (en) | Miniature data center | |
| CN106225171B (en) | Fan control method for shutdown of air conditioner and air conditioner | |
| CN203928138U (en) | A kind of full weather air cooling air conditioner device peculiar to vessel | |
| CN203883668U (en) | Self-cooling frequency conversion control cabinet | |
| CN103604193B (en) | The outer air conditioner pressure equaliser of a kind of multicell and control method for pressure balance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |