CN105650819A - Control method for high temperature refrigeration of multi-split air conditioner - Google Patents
Control method for high temperature refrigeration of multi-split air conditioner Download PDFInfo
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- CN105650819A CN105650819A CN201610071151.5A CN201610071151A CN105650819A CN 105650819 A CN105650819 A CN 105650819A CN 201610071151 A CN201610071151 A CN 201610071151A CN 105650819 A CN105650819 A CN 105650819A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method for the high temperature refrigeration of a multi-split air conditioner. The control method comprises the following steps: detecting the operation mode and the operation state of the multi-split air conditioner in a real-time manner; when the condition that the multi-split air conditioner refrigerates is detected, detecting whether the operation state of the multi-split air conditioner meets the first system default condition or not; and when the operation state of the multi-split air conditioner meets the first system default condition, adjusting the heat exchange state of external unit modules stopping operation and a system refrigerant, wherein compressors of the external unit modules stopping operation keep the stopping state. In the control method, condensers of the external unit modules stopping operation in an outdoor unit system of the multi-split air conditioner are in heat exchange with the system refrigerant, so that the heat exchange area between the system refrigerant and the outdoor unit system can be increased, the self refrigeration effect of the multi-split air conditioner is improved when the high pressure of the outdoor unit system is effectively reduced, and the applicability is high.
Description
Technical field
The invention belongs to multi-gang air-conditioner technical field, particularly relate to a kind of control method for multi-gang air-conditioner high-temperature refrigeration.
Background technology
Multi-gang air-conditioner is when high-temperature refrigeration; owing to outdoor environment temperature is higher; radiating effect is poor; its outer machine often causes higher high-pressure when running; so that system enters high voltage protective; press can only run under lower frequency, and shutdown of even reporting to the police, seriously reduces the refrigeration of air-conditioning.
For this kind of situation that multi-gang air-conditioner occurs when high-temperature refrigeration, existing method normally carrys out the cold medium flux of regulation system by adjusting the aperture of the electric expansion valve of internal-external machine, thus reduce the high-pressure of system, but these methods also can affect the refrigeration of air-conditioning itself while reducing system high pressure pressure, and refrigerating efficiency is lower.
So, in prior art, about the regulate and control method of the high-temperature refrigeration of multi-gang air-conditioner, the refrigeration of air-conditioning itself cannot be promoted while reducing system high pressure, refrigerating efficiency is lower.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of control method for multi-gang air-conditioner high-temperature refrigeration, to solve in the existing regulate and control method about multi-gang air-conditioner high-temperature refrigeration, the refrigeration of air-conditioning itself cannot be promoted, the problem that refrigerating efficiency is lower while reducing high-pressure. In order to there is a basic understanding some aspects of the embodiment disclosed, shown below is simple summary. This summary part is not comment general, neither determine key/critical component or describe the protection domain of these embodiments. Its sole purpose presents some concepts by simple form, in this, as the preamble of following detailed description.
In some optional embodiments, this control method comprises: operational mode and the running status detecting multi-gang air-conditioner in real time; When multi-gang air-conditioner refrigerating operaton being detected, whether the running status of detection multi-gang air-conditioner meets systemic presupposition first condition; When the running status of multi-gang air-conditioner meets described systemic presupposition first condition, adjusting outer machine module out of service and the heat exchange state of system refrigerant, the compressor of outer machine module wherein out of service keeps stopping state.
Further, systemic presupposition first condition comprises: the value of the outdoor environment temperature of multi-gang air-conditioner is greater than the temperature threshold value of systemic presupposition; And the value of the high-pressure of the outdoor machine system of described multi-gang air-conditioner is greater than the pressure threshold of systemic presupposition; And the outdoor machine system of described multi-gang air-conditioner has outer machine module out of service.
Further, the process of the heat exchange state adjusting outer machine module out of service and system refrigerant comprises: the electric expansion valve of a, the outer machine module opened in described outer machine module out of service, and the blower fan starting this outer machine module operates so that it is condenser and described system refrigerant carry out heat exchange; B, when systemic presupposition the first after length, carry out the quantity of the outer machine module described out of service of heat exchange with described system refrigerant according to the change of the high-pressure of the described outdoor machine system detected adjustment; C, taking length during described systemic presupposition the first as the cycle, repeated execution of steps b until stop the heat exchange state of described outer machine module out of service and system refrigerant is adjusted till.
Further, in stepb, the process of quantity of the outer machine module described out of service that the change adjustment of the high-pressure according to the described outdoor machine system detected carries out heat exchange with described system refrigerant comprises: when the value of the high-pressure described outdoor machine system being detected is greater than the pressure threshold of described systemic presupposition, the electric expansion valve of an outer machine module in the outer machine module do not open electric expansion valve in described outer machine module out of service is opened, and the blower fan starting this outer machine module operates.
Further, in stepb, the process of the quantity that the change adjustment of the high-pressure according to the described outdoor machine system detected carries out the outer machine module described out of service of heat exchange with described system refrigerant comprises: when the value of the high-pressure described outdoor machine system being detected is more than or equal to systemic presupposition first force value, when being less than or equal to the pressure threshold of described systemic presupposition, the running status that described multi-gang air-conditioner remains current is constant.
Further, in stepb, the process of the quantity that the change adjustment of the high-pressure according to the described outdoor machine system detected carries out the outer machine module described out of service of heat exchange with described system refrigerant comprises: when the value of the high-pressure described outdoor machine system being detected is less than systemic presupposition the first force value, the electric expansion valve of an outer machine module in the outer machine module open electric expansion valve in described outer machine module out of service is closed, and stops the blower fan running of this outer machine module.
Further, in step c, the process stopping the heat exchange state of described outer machine module out of service and system refrigerant being adjusted comprises: when operational mode and running status that multi-gang air-conditioner detected meet systemic presupposition second condition, stops the heat exchange state of described outer machine module out of service and system refrigerant being adjusted.
Further, systemic presupposition second condition comprises one of the following: the value of the high-pressure of outdoor machine system, continues to be less than systemic presupposition first force value in length when the systemic presupposition the 2nd; The value of the high-pressure of described outdoor machine system, continues to be less than systemic presupposition the 2nd force value in length when the systemic presupposition the 3rd; Multi-gang air-conditioner heating operation; Described multi-gang air-conditioner is shut down.
Further, the temperature threshold value of systemic presupposition is 34-37 DEG C; The pressure threshold of systemic presupposition is 3-3.5MPa; Systemic presupposition first force value is 2.4-2.8MPa; Systemic presupposition the 2nd force value is 1.8-2.2MPa.
Further, during systemic presupposition the first, length is 2-4 minute; When the systemic presupposition the 2nd, length is 8-12 minute; When the systemic presupposition the 3rd, length is 0.8-1.2 minute.
Compared with prior art, the useful effect of the present invention is:
The present invention provides a kind of control method for multi-gang air-conditioner high-temperature refrigeration, in this control method, condenser and the system refrigerant of outer machine module out of service in the outdoor machine system of multi-gang air-conditioner is adopted to carry out heat exchange, thus add system refrigerant and outdoor machine system carries out the area of heat exchange, while effectively reducing the high-pressure of outdoor machine system, improve the refrigeration of multi-gang air-conditioner itself, suitability is better.
In order to above-mentioned and relevant object, one or more embodiment comprise after will illustrate in detail and the feature that particularly points out in the claims. Explanation and accompanying drawing below illustrate some illustrative aspects in detail, and its instruction is only some modes in the various modes that can utilize of the principle of each embodiment. Other benefit and novel features are considered and become obvious by reference to the accompanying drawings by along with detailed explanation below, and the disclosed embodiments to be comprised all these aspects and theirs is equivalent.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the control method for multi-gang air-conditioner high-temperature refrigeration of the embodiment of the present invention.
Embodiment
The following description and drawings fully show specific embodiment of the invention scheme, put into practice them to enable those skilled in the art to. Embodiment only represents possible change. Unless explicitly requested, otherwise independent parts and function are optional, and the order operated can change. The part of some embodiments and feature can be included in or replace part and the feature of other embodiments. The scope of embodiment of the present invention comprises the whole scope of claim book, and the jljl such as all obtainable of claim book. Herein, these embodiments of the present invention can be represented individually or always with term " invention ", this is only used to conveniently, and if in fact disclosing the invention more than, is not that the scope automatically being limited this application is any single invention or invents design.
Before this clearly demarcated embodiment of concrete introduction, first an explanation is done in some technical terms of the present invention. Herein, the outdoor machine system of multi-gang air-conditioner is made up of multiple outer machine module, and wherein, each outer machine module all as an independent outer machine operational system, can all configure independent compressor, the equipment such as blower fan, condenser and electric expansion valve. When in all interior machine of multi-gang air-conditioner, only in part when machine startup optimization, the outer machine module of the part of this multi-gang air-conditioner can be in state out of service, and accordingly, the compressor of this part outer machine module out of service and blower fan are all in state out of service.
Now in conjunction with the accompanying drawings, it is the schema of control method for multi-gang air-conditioner high-temperature refrigeration in some optional embodiments shown in Fig. 1.
As shown in Figure 1, in some optional embodiments, disclosing a kind of control method for multi-gang air-conditioner high-temperature refrigeration, this control method comprises:
The operational mode of S11, in real time detection multi-gang air-conditioner and running status;
S12, when multi-gang air-conditioner refrigerating operaton being detected, detection multi-gang air-conditioner running status whether meet systemic presupposition first condition;
Wherein, systemic presupposition first condition comprises: the value of the outdoor environment temperature of multi-gang air-conditioner is greater than the temperature threshold value of systemic presupposition; And the value of the high-pressure of the outdoor machine system of described multi-gang air-conditioner is greater than the pressure threshold of systemic presupposition; And the outdoor machine system of described multi-gang air-conditioner has outer machine module out of service. In the specific implementation, the temperature threshold value of systemic presupposition and the pressure threshold of systemic presupposition can arbitrarily be set by user as required, such as, it is possible to the temperature threshold value of systemic presupposition is set as 34-37 DEG C, preferably, the temperature threshold value of this systemic presupposition is set as 35 DEG C; The pressure threshold of systemic presupposition can be set as 3-3.5MPa, it is preferable that, the pressure threshold of this systemic presupposition is set as 3.2MPa.
S13, when the running status of multi-gang air-conditioner meets described systemic presupposition first condition, adjusting outer machine module out of service and the heat exchange state of system refrigerant, the compressor of outer machine module wherein out of service keeps stopping state. In this process, by adjusting outer machine module out of service and the heat exchange state of system refrigerant, have adjusted system refrigerant and outdoor machine system in this multi-gang air-conditioner and carry out the area of heat exchange, thus realize simultaneously to the adjustment of the high-pressure of outdoor machine system and the refrigeration of multi-gang air-conditioner self.
Further, the process of the heat exchange state adjusting outer machine module out of service and system refrigerant comprises: a, open the electric expansion valve of an outer machine module in described outer machine module out of service, and the blower fan starting this outer machine module operates, its condenser and described system refrigerant is made to carry out heat exchange, preferably, in the process, the electric expansion valve of outer machine module is opened to maximum opening, and by the adjustment of rotational speed of its blower fan to maximum speed of revolution, like this, can ensure that the adjustment of the high-pressure of the outdoor machine system to multi-gang air-conditioner and the refrigerating efficiency of multi-gang air-conditioner self all reaches best effect, b, when systemic presupposition the first after length, carry out the quantity of the outer machine module described out of service of heat exchange with described system refrigerant according to the change of the high-pressure of the described outdoor machine system detected adjustment, c, taking length during described systemic presupposition the first as the cycle, repeated execution of steps b until stop the heat exchange state of described outer machine module out of service and system refrigerant is adjusted till.
Further, in stepb, the process of quantity of the outer machine module described out of service that the change adjustment of the high-pressure according to the described outdoor machine system detected carries out heat exchange with described system refrigerant comprises: when the value of the high-pressure described outdoor machine system being detected is greater than the pressure threshold of described systemic presupposition, the electric expansion valve of an outer machine module in the outer machine module do not open electric expansion valve in described outer machine module out of service is opened, and the blower fan starting this outer machine module operates, preferably, the electric expansion valve of this outer machine module is opened to maximum opening, and by the adjustment of rotational speed of its blower fan to maximum speed of revolution, like this, can ensure that the adjustment of the high-pressure of the outdoor machine system to multi-gang air-conditioner and the refrigerating efficiency of multi-gang air-conditioner self all reaches best effect, in the process, when the value of the high-pressure described outdoor machine system being detected is greater than the pressure threshold of described systemic presupposition, if the electric expansion valve all outer machine modules out of service being detected is opened all, the running status then remaining current is constant, or, when the value of the high-pressure described outdoor machine system being detected is more than or equal to systemic presupposition first force value, when being less than or equal to the pressure threshold of described systemic presupposition, the running status that described multi-gang air-conditioner remains current is constant, or, when the value of the high-pressure described outdoor machine system being detected is less than systemic presupposition the first force value, the electric expansion valve of an outer machine module in the outer machine module open electric expansion valve in described outer machine module out of service is closed, and stop the blower fan running of this outer machine module, in the process, when the value of the high-pressure described outdoor machine system being detected is less than systemic presupposition the first force value, if the electric expansion valve all outer machine modules out of service being detected is closed all, then the running status remaining current is constant.
Wherein, length during systemic presupposition the first and systemic presupposition first force value can arbitrarily be set by user as required, such as, it is possible to length during systemic presupposition the first is set as 2-4 minute, it is preferable that, length during this systemic presupposition the first is set as 3 minutes; Can be 2.4-2.8MPa by systemic presupposition first design of pressure, it is preferable that, it is 2.5MPa by this systemic presupposition first design of pressure.
Further, in step c, the process stopping the heat exchange state of described outer machine module out of service and system refrigerant being adjusted comprises: when operational mode and running status that multi-gang air-conditioner detected meet systemic presupposition second condition, stops the heat exchange state of described outer machine module out of service and system refrigerant being adjusted.
Further, systemic presupposition second condition comprises one of the following: the value of the high-pressure of described outdoor machine system, continues to be less than systemic presupposition first force value in length when the systemic presupposition the 2nd; The value of the high-pressure of described outdoor machine system, continues to be less than systemic presupposition the 2nd force value in length when the systemic presupposition the 3rd; Described multi-gang air-conditioner heating operation; Described multi-gang air-conditioner is shut down.
Wherein, user can as required arbitrarily to length when the systemic presupposition the 2nd, the systemic presupposition the 3rd time length and systemic presupposition the 2nd force value set, such as, it is possible to length when the systemic presupposition the 2nd is set as 8-12 minute, preferably, length when this systemic presupposition the 2nd is set as 10 minutes; Length when the systemic presupposition the 3rd can be set as 0.8-1.2 minute, it is preferable that, length when this systemic presupposition the 3rd is set as 1 minute; Can be 1.8-2.2MPa by systemic presupposition the 2nd design of pressure, it is preferable that, it is 2MPa by this systemic presupposition the 2nd design of pressure.
In the control method of the present invention, condenser and the system refrigerant of outer machine module out of service in the outdoor machine system of multi-gang air-conditioner is adopted to carry out heat exchange, thus add system refrigerant and outdoor machine system carries out the area of heat exchange, while effectively reducing the high-pressure of outdoor machine system, improve the refrigeration of multi-gang air-conditioner itself, suitability is better.
In a word, the foregoing is only embodiments of the invention, only for illustration of the principle of the present invention, it is not intended to limit protection scope of the present invention. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the control method for multi-gang air-conditioner high-temperature refrigeration, it is characterised in that, comprising:
Detect operational mode and the running status of multi-gang air-conditioner in real time;
When multi-gang air-conditioner refrigerating operaton being detected, whether the running status of detection multi-gang air-conditioner meets systemic presupposition first condition;
When the running status of multi-gang air-conditioner meets described systemic presupposition first condition, adjusting outer machine module out of service and the heat exchange state of system refrigerant, the compressor of outer machine module wherein out of service keeps stopping state.
2. control method according to claim 1, it is characterised in that, described systemic presupposition first condition comprises: the value of the outdoor environment temperature of described multi-gang air-conditioner is greater than the temperature threshold value of systemic presupposition; And the value of the high-pressure of the outdoor machine system of described multi-gang air-conditioner is greater than the pressure threshold of systemic presupposition; And the outdoor machine system of described multi-gang air-conditioner has outer machine module out of service.
3. control method according to claim 2, it is characterised in that, the process of the heat exchange state of the outer machine module that described adjustment is out of service and system refrigerant comprises:
The electric expansion valve of a, the outer machine module opened in described outer machine module out of service, and the blower fan starting this outer machine module operates so that it is condenser and described system refrigerant carry out heat exchange;
B, when systemic presupposition the first after length, carry out the quantity of the outer machine module described out of service of heat exchange with described system refrigerant according to the change of the high-pressure of the described outdoor machine system detected adjustment;
C, taking length during described systemic presupposition the first as the cycle, repeated execution of steps b until stop the heat exchange state of described outer machine module out of service and system refrigerant is adjusted till.
4. control method according to claim 3, it is characterized in that, in stepb, the process of quantity of the outer machine module described out of service that the change adjustment of the high-pressure of the described outdoor machine system that described basis detects carries out heat exchange with described system refrigerant comprises: when the value of the high-pressure described outdoor machine system being detected is greater than the pressure threshold of described systemic presupposition, the electric expansion valve of an outer machine module in the outer machine module do not open electric expansion valve in described outer machine module out of service is opened, and the blower fan starting this outer machine module operates.
5. control method according to claim 3, it is characterized in that, in stepb, the process of the quantity that the change adjustment of the high-pressure of the described outdoor machine system that described basis detects carries out the outer machine module described out of service of heat exchange with described system refrigerant comprises: when the value of the high-pressure described outdoor machine system being detected is more than or equal to systemic presupposition first force value, when being less than or equal to the pressure threshold of described systemic presupposition, the running status that described multi-gang air-conditioner remains current is constant.
6. control method according to claim 3, it is characterized in that, in stepb, the process of the quantity that the change adjustment of the high-pressure of the described outdoor machine system that described basis detects carries out the outer machine module described out of service of heat exchange with described system refrigerant comprises: when the value of the high-pressure described outdoor machine system being detected is less than systemic presupposition the first force value, the electric expansion valve of an outer machine module in the outer machine module open electric expansion valve in described outer machine module out of service is closed, and stops the blower fan running of this outer machine module.
7. control method according to claim 4-6 any one, it is characterized in that, in step c, the process that the heat exchange state of described outer machine module out of service and system refrigerant is adjusted by described stopping comprises: when operational mode and running status that multi-gang air-conditioner detected meet systemic presupposition second condition, stops the heat exchange state of described outer machine module out of service and system refrigerant being adjusted.
8. control method according to claim 7, it is characterised in that, described systemic presupposition second condition comprises one of the following:
The value of the high-pressure of described outdoor machine system, continues to be less than systemic presupposition first force value in length when the systemic presupposition the 2nd;
The value of the high-pressure of described outdoor machine system, continues to be less than systemic presupposition the 2nd force value in length when the systemic presupposition the 3rd;
Described multi-gang air-conditioner heating operation;
Described multi-gang air-conditioner is shut down.
9. control method according to claim 8, it is characterised in that, the temperature threshold value of described systemic presupposition is 34-37 DEG C; The pressure threshold of described systemic presupposition is 3-3.5MPa; Described systemic presupposition first force value is 2.4-2.8MPa; Described systemic presupposition the 2nd force value is 1.8-2.2MPa.
10. control method according to claim 9, it is characterised in that, during described systemic presupposition the first, length is 2-4 minute; When the described systemic presupposition the 2nd, length is 8-12 minute; When the described systemic presupposition the 3rd, length is 0.8-1.2 minute.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440443A (en) * | 2016-11-25 | 2017-02-22 | 广州华凌制冷设备有限公司 | Air conditioner system suitable for high-temperature refrigerating and control method |
| CN109682021A (en) * | 2018-12-13 | 2019-04-26 | 青岛海信日立空调系统有限公司 | A kind of outdoor unit guard method and device, air-conditioning system |
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| CN105650819B (en) | 2019-11-15 |
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