CN107940675A - Central air conditioner system and its subsidiary engine start self-diagnosing method and self-diagnosis system - Google Patents
Central air conditioner system and its subsidiary engine start self-diagnosing method and self-diagnosis system Download PDFInfo
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- CN107940675A CN107940675A CN201711164998.9A CN201711164998A CN107940675A CN 107940675 A CN107940675 A CN 107940675A CN 201711164998 A CN201711164998 A CN 201711164998A CN 107940675 A CN107940675 A CN 107940675A
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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
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- 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
Abstract
The invention discloses a kind of central air conditioner system and its subsidiary engine start self-diagnosing method and self-diagnosis system, the described method comprises the following steps：When central air conditioner system is run with quickly cooling power on mode, control blower fan of cooling tower, cooling pump and refrigerating water pump obtain the current operation power of blower fan of cooling tower, cooling pump and refrigerating water pump with default maximum power frequency operation；Obtain the history maximum power of blower fan of cooling tower, cooling pump and refrigerating water pump；Respective power excursion rate is calculated according to blower fan of cooling tower, cooling pump and the corresponding current operation frequency of refrigerating water pump and history maximum power；Self diagnosis is carried out to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump according to the power bias ratio of the power bias ratio of blower fan of cooling tower, the power bias ratio of cooling pump and refrigerating water pump respectively.Thereby, it is possible in central air-conditioning operational process, effectively detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump, ensure system operation in optimum state, and then play energy-conserving action.
Description
Technical field
The present invention relates to air-conditioning technical field, the subsidiary engine start self-diagnosing method of more particularly to a kind of central air conditioner system,
A kind of subsidiary engine start self-diagnosis system of central air conditioner system and a kind of central air conditioner system with the self-diagnosis system.
Background technology
Central air conditioner system is mainly made of refrigeration host computer, air-conditioner water system and air conditioning duct system three parts, wherein, it is empty
Water transfer system includes chilled water system and cooling water system.Include power-equipment in chilled water system and cooling water system
Such as, refrigerating water pump, blower fan of cooling tower and cooling pump, realize the heat exchange with refrigeration host computer.
Installed successfully in these power-equipments, after completing debugging, first trial operation is in shape, is not in larger
Mechanical loss, still, after equipment runs a period of time, since poor lubrication, or impurity enter bearing, causes plant machinery
Loss increase, influences the mechanical efficiency of equipment.During central air conditioner system is run, if maintenance personal infrequently examines
Look into, it is difficult to which discovering power-equipment occurs mechanical loss.
The content of the invention
It is contemplated that one of technical problem in above-mentioned technology is at least solved to a certain extent.For this reason, the present invention
First purpose is the subsidiary engine start self-diagnosing method for proposing a kind of central air conditioner system, can be in central air-conditioning operational process
In, effectively detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump, ensure system operation in optimum state, and then play
Energy-conserving action.
Second object of the present invention is to propose a kind of non-transitorycomputer readable storage medium.
Third object of the present invention is the subsidiary engine start self-diagnosis system for proposing a kind of central air conditioner system.
Fourth object of the present invention is to propose a kind of central air conditioner system.
To reach above-mentioned purpose, a kind of subsidiary engine start for central air conditioner system that first aspect present invention embodiment proposes is certainly
Diagnostic method, the subsidiary engine include the heat exchange stream of cooling tower, cooling pump and refrigerating water pump, the cooling tower and cooling pump composition
Road exchanges heat with the condenser in host, heat exchange flow path of the refrigerating water pump with end unit composition and the steaming in the host
Hair device exchanges heat, and the described method comprises the following steps：When the central air conditioner system is run with quickly cooling power on mode, control
Blower fan of cooling tower, cooling pump and refrigerating water pump obtain the blower fan of cooling tower, cooling pump and cold with default maximum power frequency operation
Freeze the current operation power of pump；Obtain the history maximum power of the blower fan of cooling tower, cooling pump and refrigerating water pump；According to described cold
But the current operation power of tower wind turbine and the history maximum power of the blower fan of cooling tower calculate the power of the blower fan of cooling tower
Bias ratio, and the cooling pump is calculated according to the current operation power of the cooling pump and the history maximum power of the cooling pump
Power bias ratio, and institute is calculated according to the current operation power of the refrigerating water pump and the history maximum power of the refrigerating water pump
State the power bias ratio of refrigerating water pump；Deviateed respectively according to the power of the power bias ratio of the blower fan of cooling tower, the cooling pump
The power bias ratio of rate and the refrigerating water pump carries out self diagnosis to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump.
The subsidiary engine start self-diagnosing method of central air conditioner system according to embodiments of the present invention, when central air conditioner system is with speed
During cold boot mode operation, control blower fan of cooling tower, cooling pump and refrigerating water pump obtain cooling with default maximum power frequency operation
The current operation power of tower wind turbine, cooling pump and refrigerating water pump, and obtain the history of blower fan of cooling tower, cooling pump and refrigerating water pump most
It is high-power.Blower fan of cooling tower is calculated according to the history maximum power of current the operation power and blower fan of cooling tower of blower fan of cooling tower
Power bias ratio, and it is inclined according to the power of the current history maximum power calculating cooling pump for running power and cooling pump of cooling pump
Deviate from rate, and according to the power of the history maximum power calculating refrigerating water pump of current the operation power and refrigerating water pump of refrigerating water pump
Rate.Respectively according to the power bias ratio of the power bias ratio of blower fan of cooling tower, the power bias ratio of cooling pump and refrigerating water pump to phase
Blower fan of cooling tower, cooling pump and the refrigerating water pump answered carry out self diagnosis.Thus, this method can in central air-conditioning operational process,
Effectively detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump, ensure system operation in optimum state, and then play energy saving
Effect.
In addition, the subsidiary engine start self-diagnosing method for the central air conditioner system that above-described embodiment proposes can be with according to the present invention
With technical characteristic additional as follows：
According to one embodiment of present invention, respectively according to the power bias ratio of the blower fan of cooling tower, the cooling pump
Power bias ratio and the refrigerating water pump power bias ratio to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump carry out autodiagnosis
It is disconnected, including：Power bias ratio to the blower fan of cooling tower, the power bias ratio of the cooling pump and the refrigerating water pump respectively
Power bias ratio is judged；If power bias ratio and the institute of the power bias ratio of the blower fan of cooling tower, the cooling pump
The power bias ratio for stating refrigerating water pump is respectively greater than equal to 0 and the first preset value is less than, then judges blower fan of cooling tower, cooling pump and cold
Freeze pump and be respectively at normal operation range；If the power of the power bias ratio of the blower fan of cooling tower, the cooling pump deviates
The power bias ratio of rate and the refrigerating water pump is respectively greater than equal to the first preset value and is less than or equal to the second preset value, then judges cold
But tower wind turbine, cooling pump and refrigerating water pump are respectively necessary for maintaining；If the power bias ratio of the blower fan of cooling tower, the cooling pump
Power bias ratio and the power bias ratio of the refrigerating water pump be respectively greater than the second preset value, then judge blower fan of cooling tower, cooling
Pump and refrigerating water pump are respectively necessary for maintenance and inspection.
According to one embodiment of present invention, the power bias ratio is calculated according to the following formula：
X=Y1/Y2-1,
Wherein, X is the power bias ratio, and Y1 is the current operation power, and Y2 is the history maximum power.
According to one embodiment of present invention, in the operational process of the central air conditioner system, by recording institute in real time
The operation power of blower fan of cooling tower, cooling pump and refrigerating water pump is stated to generate the blower fan of cooling tower, cooling pump and refrigerating water pump respectively
Historical power data and curves.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of non-transitory computer-readable storage medium
Matter, is stored thereon with computer program, which realizes the subsidiary engine start of above-mentioned central air conditioner system when being executed by processor
Self-diagnosing method.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, by performing above-mentioned central air conditioner system
Subsidiary engine start self-diagnosing method, can effectively detect blower fan of cooling tower, cooling pump and freezing in central air-conditioning operational process
The state of pump, ensures system operation in optimum state, and then plays energy-conserving action.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of subsidiary engine start of central air conditioner system certainly
Diagnostic device, the subsidiary engine include the heat exchange stream of cooling tower, cooling pump and refrigerating water pump, the cooling tower and cooling pump composition
Road exchanges heat with the condenser in host, heat exchange flow path of the refrigerating water pump with end unit composition and the steaming in the host
Hair device exchanges heat, and described device includes power acquisition module, computing module, self diagnosis module, wherein, the self diagnosis mould
Block, for when the central air conditioner system is run with quickly cooling power on mode, control blower fan of cooling tower, cooling pump and refrigerating water pump with
Default maximum power frequency operation；The power acquisition module, for the blower fan of cooling tower, cooling pump and refrigerating water pump respectively with
Default maximum power frequency operation, obtains the current operation power of the blower fan of cooling tower, cooling pump and refrigerating water pump, and described in acquisition
The history maximum power of blower fan of cooling tower, cooling pump and refrigerating water pump；The computing module, for according to the blower fan of cooling tower
The history maximum power of current operation power and the blower fan of cooling tower calculates the power bias ratio of the blower fan of cooling tower, and root
The power that the cooling pump is calculated according to the current operation power of the cooling pump and the history maximum power of the cooling pump deviates
Rate, and the refrigerating water pump is calculated according to the current operation power of the refrigerating water pump and the history maximum power of the refrigerating water pump
Power bias ratio；The self diagnosis module, is additionally operable to respectively according to the power bias ratio of the blower fan of cooling tower, the cooling pump
Power bias ratio and the refrigerating water pump power bias ratio to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump carry out autodiagnosis
It is disconnected.
The subsidiary engine start self-diagnosis system of central air conditioner system according to embodiments of the present invention, in central air conditioner system with speed
During cold boot mode operation, self diagnosis module control blower fan of cooling tower, cooling pump and refrigerating water pump with default maximum power frequency operation,
And obtained in blower fan of cooling tower, cooling pump and refrigerating water pump respectively with default maximum power frequency operation by power acquisition module cold
But the current operation power of tower wind turbine, cooling pump and refrigerating water pump, and obtain the history of blower fan of cooling tower, cooling pump and refrigerating water pump most
It is high-power, the then history maximum power by computing module according to current the operation power and blower fan of cooling tower of blower fan of cooling tower
The power bias ratio of blower fan of cooling tower is calculated, and according to the current operation power of cooling pump and the history maximum power meter of cooling pump
The power bias ratio of cooling pump is calculated, and it is cold according to the history maximum power calculating of current the operation power and refrigerating water pump of refrigerating water pump
Freeze the power bias ratio of pump, self diagnosis module is respectively according to the power bias ratio of blower fan of cooling tower, the power bias ratio of cooling pump
Self diagnosis is carried out to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump with the power bias ratio of refrigerating water pump.Thus, the device energy
It is enough effectively to detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump in central air-conditioning operational process, ensure system operation
In optimum state, and then play energy-conserving action.
In addition, the subsidiary engine start self-diagnosis system for the central air conditioner system that above-described embodiment proposes can be with according to the present invention
With technical characteristic additional as follows：
According to one embodiment of present invention, the self diagnosis module deviates according to the power of the blower fan of cooling tower respectively
The power bias ratio of rate, the power bias ratio of the cooling pump and the refrigerating water pump to corresponding blower fan of cooling tower, cooling pump and
When refrigerating water pump carries out self diagnosis, it is further used for, respectively the power bias ratio to the blower fan of cooling tower, the work(of the cooling pump
The power bias ratio of rate bias ratio and the refrigerating water pump is judged；If the power bias ratio of the blower fan of cooling tower, described
The power bias ratio of cooling pump and the power bias ratio of the refrigerating water pump are respectively greater than equal to 0 and are less than the first preset value, then sentence
Disconnected blower fan of cooling tower, cooling pump and refrigerating water pump are respectively at normal operation range；If the power of the blower fan of cooling tower deviates
The power bias ratio of rate, the power bias ratio of the cooling pump and the refrigerating water pump is respectively greater than equal to the first preset value and is less than
Equal to the second preset value, then judge that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively necessary for maintaining；If the blower fan of cooling tower
Power bias ratio, the power bias ratio of the cooling pump and the power bias ratio of the refrigerating water pump to be respectively greater than second default
Value, then judge that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively necessary for maintenance and inspection.
According to one embodiment of present invention, the computing module calculates the power bias ratio according to the following formula：
X=Y1/Y2-1,
Wherein, X is the power bias ratio, and Y1 is the current operation power, and Y2 is the history maximum power.
According to one embodiment of present invention, the subsidiary engine start self-diagnosis system of above-mentioned central air conditioner system, further includes
Logging modle, wherein, in the operational process of the central air conditioner system, the logging modle by recording the cooling in real time
The operation power of tower wind turbine, cooling pump and refrigerating water pump to generate the blower fan of cooling tower, cooling pump and the history of refrigerating water pump respectively
Power data curve.
To reach above-mentioned purpose, fourth aspect present invention embodiment proposes a kind of central air conditioner system, it includes above-mentioned
Central air conditioner system subsidiary engine start self-diagnosis system.
The central air conditioner system of the embodiment of the present invention, is filled by the subsidiary engine start self diagnosis of above-mentioned central air conditioner system
Put, in central air-conditioning operational process, can effectively detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump, ensure system
System operates in optimum state, and then plays energy-conserving action.
Brief description of the drawings
Fig. 1 is the structure diagram of central air conditioner system according to an embodiment of the invention；
Fig. 2 is the flow chart of the subsidiary engine start self-diagnosing method of central air conditioner system according to an embodiment of the invention；
Fig. 3 is the block diagram of the subsidiary engine start self-diagnosis system of central air conditioner system according to embodiments of the present invention；
Fig. 4 is the square frame signal of the subsidiary engine start self-diagnosis system of central air conditioner system according to an embodiment of the invention
Figure.
Reference numeral：
Compressor 10, evaporator 20, condenser 30, throttle valve 40, cooling tower 50, cooling pump 60, refrigerating water pump 70, end machine
Group 80 and blower fan of cooling tower 90.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Start shooting self diagnosis to describe the subsidiary engine of central air conditioner system proposed according to embodiments of the present invention below in conjunction with the accompanying drawings
Method, the subsidiary engine start self-diagnosis system of central air conditioner system and the central air conditioner system with the self-diagnosis system.
In an embodiment of the present invention, subsidiary engine may include cooling tower, cooling pump and refrigerating water pump, cooling tower and cooling pump composition
Heat exchange flow path exchange heat with the condenser in host, heat exchange flow path of the refrigerating water pump with end unit composition and the steaming in host
Hair device exchanges heat.
Specifically, as shown in Figure 1, central air conditioner system can be mainly big by host, air-conditioner water system and air conditioning duct system three
Part forms, and air-conditioner water system includes chilled water system and cooling water system, and subsidiary engine may include cooling tower 50, cooling pump 60 and cold
Freeze pump 70.Wherein, host is the core of whole system, and when central air conditioner system is run in a chiller mode, refrigeration host computer is whole
A system provides cold, its refrigeration principle is：Low-temp low-pressure gaseous coolant is compressed into high pressure gaseous refrigerant by compressor 10,
Reduce the volume of refrigerant, pressure rise, then send high pressure gaseous refrigerant into condenser 30, condensed in condenser 30
Become cryogenic high pressure liquid refrigerants after heat dissipation, after 40 reducing pressure by regulating flow of throttle valve, become low-temp low-pressure gas-liquid mixed state, Ran Houjin
Enter evaporator 20, evaporator 20 is evaporated refrigerant heat absorption, and then low-temp low-pressure gaseous coolant returns to compressor 10, so that complete
Into kind of refrigeration cycle.
Wherein, it is terminated with chilled water system in 20 liang of evaporator, refrigerating water pump 70 and end unit 80 in chilled water system
Evaporator 20 in composition heat exchange flow path, with refrigeration host computer carries out heat exchange, it is, chilled water system is responsible for refrigeration host computer
Chilled water out is transported to user terminal, then carries out heat exchange through fan coil, cold wind is blown out, by the chilled water of heat exchange
Refrigeration host computer is returned to freeze.Cooling water system is terminated with 30 liang of condenser, 50 He of cooling tower in cooling water system
Condenser 30 in cooling pump 60 composition heat exchange flow path, with refrigeration host computer carries out heat exchange, and cooling tower 50 discharges heat, also
It is that cooling water system cools down the heat absorption of chilled water one end and input to cooling tower 50 by refrigeration host computer, then returns
To the heat of refrigeration host computer absorption refrigerating water one end.
Cooling water system includes chilled(cooling) water return (CWR) and cooling tower circuit two parts, chilled(cooling) water return (CWR)：The water supply of condenser 30
Transmitted by cooling pump 60, realize the heat exchange of cooling backwater and refrigerant.Cooling tower circuit：The cooling water band come out from condenser 30
There is amount of heat, exchange heat in cooling tower 50 with surrounding environment, realize cooling.
Installed in central air-conditioning, after completing debugging, the original state of equipment is relatively good, does not have larger machinery damage
Lose, but because poor lubrication after equipment runs a period of time, impurity enters bearing, causes mechanical loss to increase, influence equipment
Mechanical efficiency.In the operational process of central air-conditioning, user is difficult the mechanical loss for finding these power-equipments.
Reduced to solve effectively to detect the mechanical efficiency of three big power-equipment of refrigerating water pump, cooling pump and blower fan of cooling tower
The problem of, the present invention proposes a kind of subsidiary engine start self-diagnosing method of central air conditioner system, in central air conditioner system start one
In section time (such as 30min), each power-equipment is allowed with maximum power frequency operation, by the current maximum power and history of corresponding device
The power bias ratio of maximum power comparative apparatus, so that detection device state.
Fig. 2 is the flow chart of the subsidiary engine start self-diagnosing method of central air conditioner system according to embodiments of the present invention.
As shown in Fig. 2, the subsidiary engine start self-diagnosing method of the central air conditioner system of the embodiment of the present invention may include following step
Suddenly：
S1, when central air conditioner system is run with quickly cooling power on mode, control blower fan of cooling tower, cooling pump and refrigerating water pump with
Default maximum power frequency operation, and obtain the current operation power of blower fan of cooling tower, cooling pump and refrigerating water pump.
Quickly cooling power on mode refers to the refrigerating capacity needed for the quick computing system of central air conditioner system, and by the ability calculated
Start operation.
The peak frequency of blower fan of cooling tower, cooling pump and refrigerating water pump is all power frequency, can all there is the limitation of maximum power, and
The working medium flowed through of cooling tower and cooling pump is all water, and density is basically unchanged, and flow and power all have direct relation with frequency, its
In, flow is directly proportional to the first power of rotating speed, and power is directly proportional to the cube of rotating speed.
S2, obtains the history maximum power of blower fan of cooling tower, cooling pump and refrigerating water pump.Wherein, history maximum power is general
After the completion of equipment installation, debugging, initially with default maximum power frequency operation when operation power.
S3, cooling tower wind is calculated according to the history maximum power of current the operation power and blower fan of cooling tower of blower fan of cooling tower
The power bias ratio of machine, and the work(of the current history maximum power calculating cooling pump for running power and cooling pump according to cooling pump
Rate bias ratio, and it is inclined according to the power of the history maximum power calculating refrigerating water pump of current the operation power and refrigerating water pump of refrigerating water pump
From rate.
According to one embodiment of present invention, power bias ratio can be calculated according to following formula (1)：
X=Y1/Y2-1 (1)
Wherein, X is power bias ratio, and Y1 is current operation power, and Y2 is history maximum power.
That is, the operation when obtaining blower fan of cooling tower, cooling pump and refrigerating water pump with default maximum power frequency operation
After power and history maximum power, the power of blower fan of cooling tower, cooling pump and refrigerating water pump is calculated respectively according to above-mentioned formula (1)
Deviation ratio.
S4, it is inclined according to the power of the power bias ratio of blower fan of cooling tower, the power bias ratio of cooling pump and refrigerating water pump respectively
Self diagnosis is carried out to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump from rate.
According to one embodiment of present invention, it is inclined according to the power of the power bias ratio of blower fan of cooling tower, cooling pump respectively
Self diagnosis is carried out to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump from the power bias ratio of rate and refrigerating water pump, including：Respectively
The power bias ratio of power bias ratio, cooling pump and the power bias ratio of refrigerating water pump to blower fan of cooling tower judge, if
The power bias ratio of the power bias ratio of blower fan of cooling tower, the power bias ratio of cooling pump and refrigerating water pump be respectively greater than equal to 0 and
Less than the first preset value, then judge that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively at normal operation range；If cooling tower
The power bias ratio of the power bias ratio of wind turbine, the power bias ratio of cooling pump and refrigerating water pump is respectively greater than and is equal to the first preset value
And be less than or equal to the second preset value, then judge that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively necessary for maintaining；If cooling tower wind
The power bias ratio of the power bias ratio of machine, the power bias ratio of cooling pump and refrigerating water pump is respectively greater than the second preset value, then sentences
Disconnected blower fan of cooling tower, cooling pump and refrigerating water pump are respectively necessary for maintenance and inspection.Wherein, the first preset value and the second preset value can bases
Actual conditions are demarcated.
In one embodiment of the invention, in the operational process of central air conditioner system, by recording cooling tower in real time
The operation power of wind turbine, cooling pump and refrigerating water pump to generate the historical power number of blower fan of cooling tower, cooling pump and refrigerating water pump respectively
According to curve.That is, user can obtain current loads and work according to the historical data recorded in historical power data and curves
Host start number of units under condition during central air conditioner system stable operation, can intuitively find out from historical power data and curves and often move
The state of power equipment and its state variation tendency of prediction, are taken appropriate measures with the state in time according to equipment.
Specifically, when central air conditioner system meets compressor start up condition (e.g., setting time or design temperature), and there is system in interior
During cold demand, central air conditioner system is run with quickly cooling power on mode, the refrigerating capacity needed is obtained according to load prediction, and combine
The historical data of storage, obtains the start number in the load and stable conditions operation, determines the start number of host.Then
Control blower fan of cooling tower, cooling pump and refrigerating water pump to be run by peak frequency, and gather each power-equipment (cooling tower wind respectively
Machine, cooling pump and refrigerating water pump) current operation power Y1, and it is corresponding to obtain from historical power database each power-equipment
History maximum power Y2.According to formula X=Y1/Y2-1, the power excursion rate of each power-equipment is calculated respectively, then basis
The power excursion rate of each power-equipment carries out self diagnosis to corresponding power-equipment, for example, when the power of 0≤blower fan of cooling tower
During deviation ratio X ＜ the first preset value A, judge blower fan of cooling tower in normal operation range；As A≤X≤second preset value B,
Judge that blower fan of cooling tower needs to maintain；As X ＞ B, judge that blower fan of cooling tower needs maintenance and inspection.Oneself of cooling pump and refrigerating water pump
Diagnostic method is identical with the self-diagnosing method of blower fan of cooling tower, tediously long to avoid, and is no longer described in detail.
In above process, by working as during stable operation under the current loads of each power-equipment obtained in real time and operating mode
Preceding operation power trace simultaneously stores, in order to which each power-equipment next time boots up self diagnosis.
Because the subsidiary engine start self-diagnosing method of the central air conditioner system of the embodiment of the present invention, can be in central air-conditioning system
In system start operation a period of time, each power-equipment is controlled with maximum power frequency operation, and it is current during by maximum power frequency operation
Power is run compared with history maximum power, to obtain the power excursion rate of each power-equipment, so that detection device shape
State, on the basis of the parameter under standard state, allows the state of the more intelligent detection device of system, ensures system in optimum state
Operation, and then play energy saving effect.
In conclusion the subsidiary engine start self-diagnosing method of central air conditioner system according to embodiments of the present invention, works as central hollow
When adjusting system is run with quickly cooling power on mode, control blower fan of cooling tower, cooling pump and refrigerating water pump with default maximum power frequency operation,
And the current operation power of blower fan of cooling tower, cooling pump and refrigerating water pump is obtained, and obtain blower fan of cooling tower, cooling pump and freezing
The history maximum power of pump.Calculated according to the history maximum power of current the operation power and blower fan of cooling tower of blower fan of cooling tower cold
But the power bias ratio of tower wind turbine, and cooling is calculated according to the current operation power of cooling pump and the history maximum power of cooling pump
The power bias ratio of pump, and refrigerating water pump is calculated according to the history maximum power of current the operation power and refrigerating water pump of refrigerating water pump
Power bias ratio.It is inclined according to the power of the power bias ratio of blower fan of cooling tower, the power bias ratio of cooling pump and refrigerating water pump respectively
Self diagnosis is carried out to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump from rate.Thus, this method can be run in central air-conditioning
During, effectively detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump, ensure system operation in optimum state, and then
Play energy-conserving action.
Fig. 3 is the block diagram of the subsidiary engine start self-diagnosis system of central air conditioner system according to embodiments of the present invention.
In an embodiment of the present invention, it is cold as shown in Figure 1, subsidiary engine may include cooling tower 50, cooling pump 60 and refrigerating water pump 70
But the heat exchange flow path that tower 50 and cooling pump 60 form exchanges heat with the condenser 30 in host, refrigerating water pump 70 and end unit 80
The heat exchange flow path of composition exchanges heat with the evaporator 20 in host.
As shown in figure 3, the subsidiary engine start self-diagnosis system of the central air conditioner system of the embodiment of the present invention may include：Power obtains
Modulus block 100, computing module 200 and self diagnosis module 300.
Wherein, self diagnosis module 300 is used for when central air conditioner system is run with quickly cooling power on mode, controls cooling tower wind
Machine 90, cooling pump 60 and refrigerating water pump 70 are with default maximum power frequency operation.Power acquisition module 100 is used in blower fan of cooling tower
90th, cooling pump 60 and refrigerating water pump 70 obtain blower fan of cooling tower 90, cooling pump 60 and freezing respectively with default maximum power frequency operation
The current operation power of pump 70, and obtain the history maximum power of blower fan of cooling tower 90, cooling pump 60 and refrigerating water pump 70.Calculate mould
Block 200 is used to calculate cooling tower according to the history maximum power of current the operation power and blower fan of cooling tower 90 of blower fan of cooling tower 90
The power bias ratio of wind turbine 90, and it is cold according to the current operation power of cooling pump 60 and the history maximum power calculating of cooling pump 60
But the power bias ratio of pump 60, and calculated according to the history maximum power of current the operation power and refrigerating water pump 70 of refrigerating water pump 70
The power bias ratio of refrigerating water pump 70.Self diagnosis module 300 is additionally operable to respectively according to the power bias ratio of blower fan of cooling tower 90, cooling
The power bias ratio of pump 60 and the power bias ratio of refrigerating water pump 70 are to corresponding blower fan of cooling tower 90, cooling pump 60 and refrigerating water pump 70
Carry out self diagnosis.
According to one embodiment of present invention, self diagnosis module 300 respectively according to the power bias ratio of blower fan of cooling tower 90,
The power bias ratio of cooling pump 60 and the power bias ratio of refrigerating water pump 70 are to corresponding blower fan of cooling tower 90, cooling pump 60 and freezing
When pump 70 carries out self diagnosis, it is further used for, the power bias ratio to blower fan of cooling tower 90, the power of cooling pump 60 deviate respectively
The power bias ratio of rate and refrigerating water pump 70 is judged, if the power bias ratio of blower fan of cooling tower 90, the power of cooling pump 60
The power bias ratio of bias ratio and refrigerating water pump 70 is respectively greater than equal to 0 and the first preset value is less than, then judge blower fan of cooling tower 90,
Cooling pump 60 and refrigerating water pump 70 are respectively at normal operation range；If the power bias ratio of blower fan of cooling tower 90, cooling pump 60
Power bias ratio and the power bias ratio of refrigerating water pump 70 be respectively greater than equal to the first preset value and be less than or equal to the second preset value,
Then judge that blower fan of cooling tower 90, cooling pump 60 and refrigerating water pump 70 are respectively necessary for maintaining；If the power of blower fan of cooling tower 90 deviates
The power bias ratio of rate, the power bias ratio of cooling pump 60 and refrigerating water pump 70 is respectively greater than the second preset value, then judges cooling tower
Wind turbine 90, cooling pump 60 and refrigerating water pump 70 are respectively necessary for maintenance and inspection.
According to one embodiment of present invention, computing module 200 calculates power bias ratio according to above-mentioned formula (1).
According to one embodiment of present invention, the subsidiary engine start self-diagnosis system of above-mentioned central air conditioner system, further includes
Logging modle 400, wherein, in the operational process of central air conditioner system, logging modle 400 by recording blower fan of cooling tower in real time
90th, the operation power of cooling pump 60 and refrigerating water pump 70 to generate going through for blower fan of cooling tower 90, cooling pump 60 and refrigerating water pump 70 respectively
History power data curve.
It should be noted that do not disclosed in the subsidiary engine start self-diagnosis system of the central air conditioner system of the embodiment of the present invention
Details, the details disclosed in the subsidiary engine start self-diagnosing method for the central air conditioner system that refer to the embodiment of the present invention, specifically
Which is not described herein again.
The subsidiary engine start self-diagnosis system of central air conditioner system according to embodiments of the present invention, in central air conditioner system with speed
During cold boot mode operation, self diagnosis module control blower fan of cooling tower, cooling pump and refrigerating water pump with default maximum power frequency operation,
And obtained in blower fan of cooling tower, cooling pump and refrigerating water pump respectively with default maximum power frequency operation by power acquisition module cold
But the current operation power of tower wind turbine, cooling pump and refrigerating water pump, and obtain the history of blower fan of cooling tower, cooling pump and refrigerating water pump most
It is high-power, the then history maximum power by computing module according to current the operation power and blower fan of cooling tower of blower fan of cooling tower
The power bias ratio of blower fan of cooling tower is calculated, and according to the current operation power of cooling pump and the history maximum power meter of cooling pump
The power bias ratio of cooling pump is calculated, and it is cold according to the history maximum power calculating of current the operation power and refrigerating water pump of refrigerating water pump
Freeze the power bias ratio of pump, self diagnosis module is respectively according to the power bias ratio of blower fan of cooling tower, the power bias ratio of cooling pump
Self diagnosis is carried out to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump with the power bias ratio of refrigerating water pump.Thus, the device energy
It is enough effectively to detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump in central air-conditioning operational process, ensure system operation
In optimum state, and then play energy-conserving action.
In addition, the embodiment of the present invention also proposed a kind of non-transitorycomputer readable storage medium, it is stored thereon with
Computer program, the program realize the subsidiary engine start self-diagnosing method of above-mentioned central air conditioner system when being executed by processor.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, by performing above-mentioned central air conditioner system
Subsidiary engine start self-diagnosing method, can effectively detect blower fan of cooling tower, cooling pump and freezing in central air-conditioning operational process
The state of pump, ensures system operation in optimum state, and then plays energy-conserving action.
In addition, the embodiment of the present invention also proposed a kind of central air conditioner system, it includes above-mentioned central air conditioner system
Subsidiary engine start self-diagnosis system.
The central air conditioner system of the embodiment of the present invention, is filled by the subsidiary engine start self diagnosis of above-mentioned central air conditioner system
Put, in central air-conditioning operational process, can effectively detect the state of blower fan of cooling tower, cooling pump and refrigerating water pump, ensure system
System operates in optimum state, and then plays energy-conserving action.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used for realization custom logic function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic at the same time in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or if necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware with another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized：With the logic gates for realizing logic function to data-signal from
Logic circuit is dissipated, the application-specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although have been shown and retouch above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, those of ordinary skill in the art can be changed above-described embodiment, change, replace and become within the scope of the invention
Type.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. the subsidiary engine start self-diagnosing method of a kind of central air conditioner system, it is characterised in that the subsidiary engine includes cooling tower, cooling
The heat exchange flow path of pump and refrigerating water pump, the cooling tower and cooling pump composition exchanges heat with the condenser in host, described
Refrigerating water pump exchanges heat with the heat exchange flow path that end unit forms with the evaporator in the host, and the described method includes following step
Suddenly：
When the central air conditioner system is run with quickly cooling power on mode, control blower fan of cooling tower, cooling pump and refrigerating water pump are with pre-
If maximum power frequency operation, and obtain the current operation power of the blower fan of cooling tower, cooling pump and refrigerating water pump；
Obtain the history maximum power of the blower fan of cooling tower, cooling pump and refrigerating water pump；
Calculated according to the history maximum power of the current operation power of the blower fan of cooling tower and the blower fan of cooling tower described cold
But the power bias ratio of tower wind turbine, and according to the current operation power of the cooling pump and the history maximum power of the cooling pump
The power bias ratio of the cooling pump is calculated, and according to the current operation power of the refrigerating water pump and the history of the refrigerating water pump
Maximum power calculates the power bias ratio of the refrigerating water pump；
Respectively according to the work(of the power bias ratio of the blower fan of cooling tower, the power bias ratio of the cooling pump and the refrigerating water pump
Rate bias ratio carries out self diagnosis to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump.
2. the subsidiary engine start self-diagnosing method of central air conditioner system as claimed in claim 1, it is characterised in that respectively according to institute
The power bias ratio of the power bias ratio of blower fan of cooling tower, the power bias ratio of the cooling pump and the refrigerating water pump is stated to corresponding
Blower fan of cooling tower, cooling pump and refrigerating water pump carry out self diagnosis, including：
The power of power bias ratio to the blower fan of cooling tower, the power bias ratio of the cooling pump and the refrigerating water pump respectively
Bias ratio is judged；
If the power bias ratio of the power bias ratio of the blower fan of cooling tower, the cooling pump and the power of the refrigerating water pump are inclined
It is respectively greater than from rate equal to 0 and is less than the first preset value, then judges that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively at normally
Range of operation；
If the power bias ratio of the power bias ratio of the blower fan of cooling tower, the cooling pump and the power of the refrigerating water pump are inclined
It is respectively greater than from rate equal to the first preset value and is less than or equal to the second preset value, then judges blower fan of cooling tower, cooling pump and freezing
Pump is respectively necessary for maintaining；
If the power bias ratio of the power bias ratio of the blower fan of cooling tower, the cooling pump and the power of the refrigerating water pump are inclined
It is respectively greater than the second preset value from rate, then judges that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively necessary for maintenance and inspection.
3. central air conditioner system as claimed in claim 1 or 2 subsidiary engine start self-diagnosing method, it is characterised in that according to
Lower formula calculates the power bias ratio：
X=Y1/Y2-1,
Wherein, X is the power bias ratio, and Y1 is the current operation power, and Y2 is the history maximum power.
4. the subsidiary engine start self-diagnosing method of the central air conditioner system as any one of claim 1-3, it is characterised in that
In the operational process of the central air conditioner system, by recording the blower fan of cooling tower, cooling pump and the fortune of refrigerating water pump in real time
Row power to generate the historical power data and curves of the blower fan of cooling tower, cooling pump and refrigerating water pump respectively.
5. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, it is characterised in that the program quilt
The subsidiary engine start self-diagnosing method of the central air conditioner system as any one of claim 1-4 is realized when processor performs.
6. the subsidiary engine start self-diagnosis system of a kind of central air conditioner system, it is characterised in that the subsidiary engine includes cooling tower, cooling
The heat exchange flow path of pump and refrigerating water pump, the cooling tower and cooling pump composition exchanges heat with the condenser in host, described
Refrigerating water pump exchanges heat with the heat exchange flow path that end unit forms with the evaporator in the host, and described device is obtained including power
Modulus block, computing module, self diagnosis module, wherein,
The self diagnosis module, for when the central air conditioner system is run with quickly cooling power on mode, control blower fan of cooling tower,
Cooling pump and refrigerating water pump are with default maximum power frequency operation；
The power acquisition module, in the blower fan of cooling tower, cooling pump and refrigerating water pump respectively with default maximum power frequency
Operation, obtains the current operation power of the blower fan of cooling tower, cooling pump and refrigerating water pump, and obtains the blower fan of cooling tower, cold
But the history maximum power of pump and refrigerating water pump；
The computing module, for the current operation power according to the blower fan of cooling tower and the history of the blower fan of cooling tower most
The power bias ratio of the high-power calculating blower fan of cooling tower, and according to the current operation power of the cooling pump and the cooling
The history maximum power of pump calculates the power bias ratio of the cooling pump, and according to the current operation power of the refrigerating water pump and
The history maximum power of the refrigerating water pump calculates the power bias ratio of the refrigerating water pump；
The self diagnosis module, is additionally operable to respectively according to the power bias ratio of the blower fan of cooling tower, the power of the cooling pump
The power bias ratio of bias ratio and the refrigerating water pump carries out self diagnosis to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump.
7. the subsidiary engine start self-diagnosis system of central air conditioner system as claimed in claim 6, it is characterised in that the self diagnosis
Module is respectively according to the work(of the power bias ratio of the blower fan of cooling tower, the power bias ratio of the cooling pump and the refrigerating water pump
When rate bias ratio carries out self diagnosis to corresponding blower fan of cooling tower, cooling pump and refrigerating water pump, it is further used for,
The power of power bias ratio to the blower fan of cooling tower, the power bias ratio of the cooling pump and the refrigerating water pump respectively
Bias ratio is judged；
If the power bias ratio of the power bias ratio of the blower fan of cooling tower, the cooling pump and the power of the refrigerating water pump are inclined
It is respectively greater than from rate equal to 0 and is less than the first preset value, then judges that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively at normally
Range of operation；
If the power bias ratio of the power bias ratio of the blower fan of cooling tower, the cooling pump and the power of the refrigerating water pump are inclined
It is respectively greater than from rate equal to the first preset value and is less than or equal to the second preset value, then judges blower fan of cooling tower, cooling pump and freezing
Pump is respectively necessary for maintaining；
If the power bias ratio of the power bias ratio of the blower fan of cooling tower, the cooling pump and the power of the refrigerating water pump are inclined
It is respectively greater than the second preset value from rate, then judges that blower fan of cooling tower, cooling pump and refrigerating water pump are respectively necessary for maintenance and inspection.
8. the subsidiary engine start self-diagnosis system of central air conditioner system as claimed in claims 6 or 7, it is characterised in that the meter
Calculate module and the power bias ratio is calculated according to the following formula：
X=Y1/Y2-1,
Wherein, X is the power bias ratio, and Y1 is the current operation power, and Y2 is the history maximum power.
9. the subsidiary engine start self-diagnosis system of the central air conditioner system as any one of claim 6-8, it is characterised in that
Logging modle is further included, wherein, in the operational process of the central air conditioner system, the logging modle by recording institute in real time
The operation power of blower fan of cooling tower, cooling pump and refrigerating water pump is stated to generate the blower fan of cooling tower, cooling pump and refrigerating water pump respectively
Historical power data and curves.
10. a kind of central air conditioner system, it is characterised in that including the central air-conditioning system as any one of claim 6-9
The subsidiary engine start self-diagnosis system of system.
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| CN201711164998.9A CN107940675B (en) | 2017-11-21 | 2017-11-21 | Central air conditioning system, auxiliary machine starting self-diagnosis method and self-diagnosis device thereof |
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| CN114427742A (en) * | 2022-01-27 | 2022-05-03 | 广州施杰节能科技有限公司 | Central air-conditioning cold station energy efficiency control method, device, equipment and storage medium |
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