CN113339958B - Multi-air-conditioning system and area control method thereof - Google Patents
Multi-air-conditioning system and area control method thereof Download PDFInfo
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- CN113339958B CN113339958B CN202110649231.5A CN202110649231A CN113339958B CN 113339958 B CN113339958 B CN 113339958B CN 202110649231 A CN202110649231 A CN 202110649231A CN 113339958 B CN113339958 B CN 113339958B
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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
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
Abstract
The invention discloses a region control method of a multi-air-conditioning system and the multi-air-conditioning system, wherein each working region of the multi-air-conditioning system is provided with a corresponding air-conditioning system, and all the air-conditioning systems are connected to a shared air duct; the area control method comprises the following steps: monitoring the starting requirements of all working areas; determining the position of a working area with a starting-up requirement; and selecting and starting at least part of the air conditioning systems according to the position and the demand of the working area with the starting requirement, wherein the at least part of the air conditioning systems can meet the total demand of the working area with the starting requirement, and at most one air conditioning system can provide output load for each working area with the starting requirement. The invention optimizes the output of multiple air-conditioning systems, ensures that the opened air-conditioning system can meet the total demand, avoids energy waste, and avoids the problem of overlarge air volume, pressure bearing and cracking of the shared air duct.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a regional control method of a multi-air-conditioning system and the multi-air-conditioning system.
Background
With the increasing expansion of air conditioner export markets, due to the characteristic that some export countries have sparse population, houses are mostly in the form of villas and the like, and for some office places, office areas can be divided into small areas, and the area control system is derived according to the requirements. The conventional regional control system is realized by adding an air valve controller and a regional control terminal on the basis of one-to-one unit, and the regional control terminal can control the opening and closing of an air valve to realize the independent control of a plurality of small regions. However, when the total area of the region exceeds the area that can be supported by a single set of system, or when there is a control requirement for more small regions, it is necessary to consider the operation of multiple sets of systems in coordination. The independent system can meet the requirements in a natural way, but is not beneficial to comprehensive allocation of energy, and easily causes energy waste.
As shown in fig. 1, in the prior art, intelligent control of all areas has been achieved through output sharing and unified allocation of multiple sets of air conditioning systems. However, since all the air conditioning systems are connected to the same shared air duct, the multi-air conditioning system has certain limitations in practical installation and application, and the limitations are mainly reflected in the shared air duct. The air ducts of multiple systems are shared theoretically, but when the air ducts of the multiple systems are connected together, if the selected pipelines are the same in pipe diameter, the pipelines may be broken due to the long-term excessive air volume. And if the pipe diameter of the selected pipeline is too large, the final output of the multi-air-conditioning system is weakened, and the requirements of users cannot be met.
Therefore, how to achieve the optimized output of the multi-air-conditioning system in the area control is an urgent technical problem to be solved in the industry.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a regional control method of a multi-air-conditioning system and the multi-air-conditioning system.
The technical scheme adopted by the invention is that a regional control method of a multi-air-conditioning system is designed, each working region of the multi-air-conditioning system is provided with the corresponding air-conditioning system, and all the air-conditioning systems are connected to a shared air duct; the area control method comprises the following steps:
monitoring the starting requirements of all working areas;
determining the position of a working area with a starting-up requirement;
and selecting and starting at least part of the air conditioning systems according to the position and the demand of the working area with the starting requirement, wherein the at least part of the air conditioning systems can meet the total demand of the working area with the starting requirement, and at most one air conditioning system can provide output load for each working area with the starting requirement.
Preferably, the selecting and turning on at least part of the air conditioning system according to the position and the demand of the working area with the starting requirement comprises:
when more than two working areas are continuously adjacent and have starting requirements at the same time, dividing all the continuously adjacent working areas into area combinations, cutting off a shared air duct between the area combinations and other working areas, and selecting to start an air conditioning system in the area combinations according to the total demand of the area combinations;
and/or when an independent working area has a starting requirement, cutting off a shared air duct between the working area and other working areas, and starting the air conditioning system of the working area to work independently;
and/or when all the working areas have starting requirements, cutting off the shared air channels among all the working areas, and starting the air conditioning systems of all the working areas to respectively and independently work.
Preferably, the selecting and turning on the air conditioning system in the zone combination according to the total demand of the zone combination comprises:
judging whether a single air conditioning system in the area combination is started to meet the total demand of the area combination;
if so, switching on a shared air duct between two adjacent working areas in the area combination, and selecting to start one air conditioning system meeting the total demand in the area combination;
if not, the shared air duct between two adjacent working areas in the area combination is cut off, and all the air conditioning systems in the area combination are started to respectively and independently work.
Preferably, each air-conditioning system is provided with a unique corresponding identification code, the air-conditioning systems are subjected to priority ranking according to the identification codes in advance, and when any one air-conditioning system in the regional combination is started to meet the total demand of the regional combination, the air-conditioning system with the high level is selected.
The present invention also provides a multi-air conditioning system comprising: the air conditioner comprises at least two air conditioning systems, a shared air duct and a control unit, wherein a main air duct is arranged between each air conditioning system and a corresponding working area, sub-areas distributed in the working areas are connected to the main air duct, and all the main air ducts are communicated through the shared air duct; the control unit controls the working state of the air conditioning system by adopting the area control method.
Preferably, at least one valve is arranged between two adjacent working areas, the shared air duct between the two working areas is switched on when the valve is opened, and the shared air duct between the two working areas is switched off when the valve is closed; and the control unit controls the on-off states of the air conditioning system and the valve member according to the starting-up requirement of the working area.
Preferably, when more than two working areas are continuously adjacent and have starting requirements at the same time, the control unit divides all the continuously adjacent working areas into area combinations and closes the valve elements between the area combinations and other working areas; when the independent working area has a starting-up requirement, the control unit closes the valve elements between the working area and other working areas.
Preferably, the pipe diameter of the shared air duct is matched with the pipe diameter of the air conditioning system with the largest air volume, and in a preferred embodiment, the pipe diameter of the shared air duct is the same as the pipe diameter of a main air duct of the air conditioning system with the largest air volume.
Preferably, the output load of each air conditioning system meets the sum of the maximum demands of all the sub-areas in the corresponding working area.
Compared with the prior art, at least part of the air conditioning systems are selectively started according to the positions and the demand of the working areas with starting requirements, at most one air conditioning system can provide output load for each working area with starting requirements, the started air conditioning system can meet the total demand, and the problem of overlarge air volume, pressure bearing and breakage of the shared air channel can be avoided. Furthermore, when more than two working areas are continuously adjacent and have starting requirements at the same time, one air-conditioning system meeting the total demand of area combination is selected to be started, the output of multiple air-conditioning systems is optimized, and energy waste is avoided.
Drawings
The invention is described in detail below with reference to examples and figures, in which:
FIG. 1 is a schematic diagram of the connection of a prior art multi-air conditioning system;
FIG. 2 is a schematic diagram of the connection of multiple air conditioning systems according to the present invention;
FIG. 3 is a schematic diagram of two adjacent work areas having a power-on requirement according to the present invention;
FIG. 4 is a schematic view of a combination of two regions of the present invention;
FIG. 5 is a schematic diagram of a single working area with a boot requirement according to the present invention;
FIG. 6 is a schematic diagram of two non-adjacent work areas having power-on requirements according to the present invention;
FIG. 7 is a schematic diagram of the present invention showing all the working areas having boot requirements.
Detailed Description
As shown in fig. 2, the area control method provided by the present invention is applicable to a multi-air-conditioning system, where the multi-air-conditioning system is applied to an application having multiple working areas, each working area is configured with its corresponding air-conditioning system, that is, the working areas and air-conditioning coefficients are in a one-to-one correspondence relationship, multiple sub-areas are distributed in each working area, the output load of each air-conditioning system satisfies the sum of the maximum demands of all sub-areas in its corresponding working area, a main air duct is provided between the air-conditioning system and its corresponding working area, each sub-area is equipped with at least one air valve, all the air valves in the same working area are connected to the main air duct, and all the main air ducts in the multi-air-conditioning system are communicated through one shared air duct.
The above multi-air-conditioning system is the implementation basis of the zone control method, and the specific steps of the zone control method are described in detail below, and the zone control method includes: the method comprises the steps of monitoring the starting requirements of all working areas, determining the positions of the working areas with the starting requirements when the starting requirements exist, and selectively starting at least part of the air conditioning systems according to the positions and the demand quantities of the working areas with the starting requirements, wherein the at least part of the air conditioning systems can meet the total demand quantity of the working areas with the starting requirements, and at most one air conditioning system can provide output load for each working area with the starting requirements, so that the air quantity of a shared air duct is prevented from being too large, the shared air duct is effectively protected, and the service life of the shared air duct is prolonged.
Specifically, the implementation method for selectively starting at least part of the air conditioning systems is as follows, when different working areas in the whole area where the multiple air conditioning systems are located have starting requirements, the air conditioning systems put into operation need to be comprehensively evaluated according to the area of the areas, the area of the areas can be determined according to the position of the working area with the starting requirements, and it needs to be stated that when at least one sub-area in the working area has the starting requirements, the working area is determined to have the starting requirements.
As shown in fig. 3 and 4, when more than two working areas are continuously adjacent and have a starting-up demand at the same time, all the continuously adjacent working areas are divided into area combinations, the shared air duct between the working areas and other working areas is cut off, and the air conditioning system in the area combination is selected to be started up according to the total demand of the area combinations.
It should be understood that when a zone combination occurs in the whole zone where multiple air-conditioning systems are located, there may occur only one zone combination as shown in fig. 3, or there may occur two non-adjacent zone combinations as shown in fig. 4, regardless of the number of zone combinations, the zone combinations are controlled as a whole, the shared channel of the zone combination and the adjacent working zone is cut off, i.e. the two zone combinations are separated, air volume loss caused by too long air supply distance is avoided, and then the air-conditioning systems in the respective zone combinations are selected to be turned on respectively according to the total demand of the zone combinations.
Furthermore, in the practical application process, the regional combinations have a plurality of combination conditions, and when only two working regions are adjacent and have starting requirements at the same time, the regional combinations are formed by the two adjacent working regions; when more than three working areas are continuously adjacent and have starting requirements at the same time, the area combination is composed of all the continuously adjacent working areas.
Specifically, the implementation method for selecting the air conditioning system in the zone combination to be started according to the total demand of the zone combination is as follows:
judging whether a single air conditioning system in the opening area combination meets the total demand of the area combination;
if so, switching on a shared air duct between two adjacent working areas in the area combination, and selecting one air conditioning system meeting the total demand in the opening area combination to ensure that the opened air conditioning system can meet the total demand and avoid energy waste;
if not, the shared air duct between two adjacent working areas in the area combination is cut off, all the air conditioning systems in the area combination are started to respectively and independently work, air supply of the air conditioning systems to the shared air duct is prevented, and pressure bearing breakage of the shared air duct due to overlarge air volume is avoided.
In some cases, the capacity of the air conditioning systems of the respective operating zones within a zone group is different, and if only one large capacity air conditioning system can meet the total demand of the zone group, only that large capacity air conditioning system is turned on. If more than two air-conditioning systems can meet the total demand of the area combination, one air-conditioning system with a high level is selected according to the preset priority logic. In other cases, the capacity of the air conditioning system in each working area in the area combination is the same, and if a single air conditioning system can meet the total demand of the area combination, one air conditioning system with a high turn-on level is selected according to a preset priority logic.
In an optional embodiment, each air-conditioning system is provided with a unique corresponding identification code, and all the air-conditioning systems in the multi-air-conditioning system are prioritized according to the identification codes. The identification code can be an engineering number or an IP address, taking the engineering number as an example, the air conditioning systems are sequentially connected to the shared air duct, the first air conditioning system at one end of the shared air duct is taken as a number 1, the second air conditioning system is taken as a number 2, the priority is determined according to the size arrangement of the numbers until the last air conditioning system at the other end of the shared air duct is taken as a number N, the air conditioning system with the small number is high in priority and the air conditioning system with the large number is low in priority, and when more than two air conditioning systems meet the total demand of regional combination, the air conditioning system with the small number is selected to be started. When the identification code is an IP address, the priority of the air conditioning system is also arranged according to similar logic, and the air conditioning system with high or low selection level can be designed according to actual conditions.
As shown in fig. 5 and 6, when there is a starting requirement in an individual working area, the shared air duct between the working area and other working areas is cut off, and the air conditioning system in the working area is started to work independently, so as to avoid air volume loss caused by too long air supply distance.
As shown in fig. 7, when all the working areas have a starting requirement, the shared air duct between all the working areas is cut off, and the air conditioning systems of all the working areas are started to respectively and independently work, so that air volume loss caused by too long air supply distance is avoided.
The regional control method provided by the invention can effectively solve the engineering installation problem caused by air duct sharing, realizes the optimal management of the air conditioning system energy on the basis of not changing the installation and material selection of the existing system, and avoids energy waste.
Further, the present invention also provides a multi-air conditioning system using the area control method, as shown in fig. 2, the multi-air conditioning system includes at least two air conditioning systems, a shared air duct, a control unit and other basic structures, and the control unit controls the operating state of each air conditioning system using the area control method. In order to ensure that the size of the shared air duct is proper, the pipe diameter of the shared air duct is matched with the pipe diameter of the air-conditioning system with the largest air volume, and in the best embodiment, the pipe diameter of the shared air duct is the same as the pipe diameter of a main air duct of the air-conditioning system with the largest air volume.
The air conditioning system is sequentially arranged from one end to the other end of the shared air duct, at least one valve is arranged between every two adjacent working areas, the valve is mounted on the shared air duct, the on-off state of the shared air duct is switched by controlling the on-off state of the valve, the shared air duct between the two working areas is connected when the valve is opened, and the shared air duct between the two working areas is cut off when the valve is closed. The valve member may be an air valve with adjustable opening degree, and other devices with opening and closing functions may also be used.
When more than two working areas are continuously adjacent and have starting requirements at the same time, the control unit divides all the continuously adjacent working areas into area combinations and closes the valve elements between the area combinations and other working areas; when the independent working area has a starting-up requirement, the control unit closes the valve elements between the working area and other working areas.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The regional control method of the multi-air-conditioning system, each working region of the multi-air-conditioning system is provided with its corresponding air-conditioning system, and all the air-conditioning systems are connected to a shared air duct, the pipe diameter of the shared air duct is matched with the pipe diameter size of the air-conditioning system with the largest air volume; the area control method is characterized by comprising the following steps:
monitoring the starting requirements of all working areas;
determining the position of a working area with a starting-up requirement;
selecting to start at least part of air conditioning systems according to the position and the demand of a working area with starting requirements, wherein the at least part of air conditioning systems can meet the total demand of the working area with the starting requirements, and at most one air conditioning system can provide output load for each working area with the starting requirements;
when more than two working areas are continuously adjacent and have starting requirements at the same time, dividing all the continuously adjacent working areas into area combinations, cutting off a shared air duct between the area combinations and other working areas, and judging whether a single air conditioning system in the area combinations is started to meet the total demand of the area combinations;
if so, switching on a shared air duct between two adjacent working areas in the area combination, and selecting to start one air conditioning system meeting the total demand in the area combination;
if not, the shared air duct between two adjacent working areas in the area combination is cut off, and all the air conditioning systems in the area combination are started to respectively and independently work.
2. The area control method according to claim 1,
when an independent working area has a starting-up requirement, cutting off a shared air duct between the working area and other working areas, and starting an air conditioning system of the working area to work independently;
and/or when all the working areas have starting requirements, cutting off the shared air channels among all the working areas, and starting the air conditioning systems of all the working areas to respectively and independently work.
3. The zone control method according to claim 1, wherein each air conditioning system is provided with an identification code uniquely corresponding thereto, the air conditioning systems are prioritized in advance according to the identification codes, and when any one of the air conditioning systems in the zone combination is started to meet the total demand of the zone combination, the air conditioning system with the higher level is selected.
4. A multi air conditioning system comprising: the air conditioner comprises at least two air conditioning systems, a shared air channel and a control unit, wherein a main air channel is arranged between each air conditioning system and a corresponding working area, sub-areas distributed in the working areas are connected to the main air channel, and all the main air channels are communicated through the shared air channel; characterized in that the control unit controls the operating state of the air conditioning system using the zone control method of any one of claims 1 to 3.
5. The multi air conditioning system according to claim 4, wherein at least one valve is provided between two adjacent working areas, the shared air duct between the two working areas is switched on when the valve is opened, and the shared air duct between the two working areas is switched off when the valve is closed; and the control unit controls the on-off states of the air conditioning system and the valve member according to the starting-up requirement of the working area.
6. The multi-air conditioning system according to claim 5, wherein when there are more than two working areas that are continuously adjacent and there is a start-up demand at the same time, the control unit divides all the continuously adjacent working areas into area combinations and closes the valve elements between the area combinations and the other working areas.
7. The multi-air conditioning system according to claim 5, wherein when there is a start-up demand for an individual working area, the control unit closes the valve elements between the working area and the other working areas.
8. The multi-air conditioning system as claimed in claim 4, wherein the output load of each of the air conditioning systems meets the sum of the maximum demands of all sub-zones within its corresponding operating zone.
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