CN107676923A - A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device - Google Patents

A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device Download PDF

Info

Publication number
CN107676923A
CN107676923A CN201710826048.1A CN201710826048A CN107676923A CN 107676923 A CN107676923 A CN 107676923A CN 201710826048 A CN201710826048 A CN 201710826048A CN 107676923 A CN107676923 A CN 107676923A
Authority
CN
China
Prior art keywords
cooling
cooling tower
cooling water
water
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710826048.1A
Other languages
Chinese (zh)
Inventor
申利梅
薛雪
缪胜昔
刘忠华
吴兴刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Das Intellitech Co Ltd
Original Assignee
Shenzhen Das Intellitech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Das Intellitech Co Ltd filed Critical Shenzhen Das Intellitech Co Ltd
Priority to CN201710826048.1A priority Critical patent/CN107676923A/en
Publication of CN107676923A publication Critical patent/CN107676923A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to a kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device,This method by monitoring and gathering cooling tower air inlet/outlet dry-bulb temperature in real time,Cooling tower air inlet/outlet relative humidity,Cooling water supply and return water temperature,Cooling water pipeline water-carrying capacity,Cool down supply mains's water-carrying capacity,Cooling water pipeline pressure,Cooling water valve feedback signal and fan operation feedback signal,Analyzed and processed based on these data and feedback signal,And failure automatic detection and judgement are carried out to cooling tower systems according to analysis processing result,Corresponding fault message and control signal are exported according to detection judged result,And the fault alarm according to corresponding to triggering control signal,Effectively solving the problems, such as that cooling tower breaks down can not check and find in time and safeguard,Not only realize that cooling water system saves,Also ensure the normal and Effec-tive Function of cooling water system,Reduce maintenance cost,Improve ageing,Both the thermal comfort of air-conditioning system can have been ensured,Also energy waste can be avoided.

Description

A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device
Technical field
The present invention relates to Air conditioning System for Hospitals field of cooling tower, is cooled down more specifically to a kind of Air conditioning System for Hospitals Tower failure automatic judging method and device.
Background technology
The efficiency of the capital equipment of central air conditioner system computer room, particularly refrigeration host computer is horizontal to be monitored and controlled in real time Energy-saving run to central air-conditioning is very necessary.Research shows that the condensation temperature of refrigeration unit condenser often declines 1 DEG C, Central air conditioner system main frame operational energy efficiency just improves 3%~4%, meanwhile, in order to ensure that condensation temperature declines, cooling water temperature Degree is also required to accordingly decline, so as to which the running speed and energy consumption of cooling tower and cooling pump increased.The energy consumption of cold and cooling Shifting relation be present in the energy consumption of tower and cooling pump.
Therefore, if Leng Ji ﹑ cooling towers and operating mode (such as optimal cooling water of refrigerating water pump comprehensive energy consumption minimum can be searched out Supply water temperature), cooling water system energy-conservation can be achieved.The low-temperature receiver efficiency requirement of hospital is directed to, particularly hospital's refrigeration plant cools down Whether the cooling tower (Cooling Tower) of water system can normally and Effec-tive Function seems particularly heavy in routine maintenance procedure Will, if traditional cooling tower breaks down, typically regular visit targetedly could be checked and found, shortage is ageing, The significant wastage of the energy and resource may also be caused simultaneously.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of hospital's air-conditioning system System cooling tower failure automatic judging method and device.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of Air conditioning System for Hospitals cooling tower failure Automatic judging method, comprise the following steps：
S11, monitor in real time and gather cooling tower air inlet/outlet dry-bulb temperature, the confession of cooling tower air inlet/outlet relative humidity, cooling water Return water temperature, cooling water pipeline water-carrying capacity, cooling supply mains water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal And fan operation feedback signal；
S12, the cooling tower air inlet/outlet dry-bulb temperature according to being gathered, cooling tower air inlet/outlet relative humidity, cooling water supply back Coolant-temperature gage, cooling water pipeline water-carrying capacity and cooling water pipeline pressure, calculate cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower Air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water Variations in line pressure rate；
S13, the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, Cooling water pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, disengaging air-dry Ball rate of temperature change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline current When quantitative change rate and cooling water pipeline pressure change rate meet the first preparatory condition, fault message and control signal are produced, and Fault alarm is triggered according to the control signal.
Preferably, the step S12 also includes：
Cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity and cooling water according to being gathered supply backwater Temperature, calculate the difference of cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature, cooling tower air intake relative humidity with it is cold But the difference of tower air-out relative humidity and the difference of cooling water return water temperature and supply water temperature.
Preferably, the fault message includes cooling tower power failure information, cooling tower network failure information, cooling tower wind Machine fault message, cooling water valve fault message, cooling tower open quantity and cross multi information and cooling water pipeline water-carrying capacity letter extremely Breath；Wherein, the cooling water valve fault message includes cooling water valve unlatching fault message and cooling water valve closing fault Information；
The control signal includes cooling tower power failure control signal, cooling tower network failure control signal, cooling tower Fan trouble control signal, cooling water valve failure control signal, cooling tower open the excessive control signal of quantity and cooling water pipe Road water-carrying capacity abnormal control signal；
The cooling water valve failure control signal includes cooling water valve and opens failure control signal and cooling water valve Closing fault control signal.
Preferably, it is the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cold in the step S13 But water supply and return water temperature, cooling water pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation are anti- Feedback signal, air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, the change of cooling water supply and return water temperature Rate, cooling water pipeline water-carrying capacity rate of change and cooling water pipeline pressure change rate meet that the first preparatory condition includes：
The cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water Pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal are zero；Or
The cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply back Coolant-temperature gage rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water pipeline pressure change rate are zero.
Preferably, the step S13 also includes：
In the cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry bulb The difference of temperature and cooling tower air-out dry-bulb temperature, the difference of cooling tower disengaging relative temperature and cooling tower air-out relative humidity, And during the difference of cooling water return water temperature and supply water temperature the second preparatory condition of satisfaction, fault message and control signal are produced, And fault alarm is triggered according to the control signal；
The cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry bulb temperature Degree and the difference of cooling tower air-out dry-bulb temperature, the difference of cooling tower air intake relative humidity and cooling tower air-out relative humidity, with And the difference of cooling water return water temperature and supply water temperature meets that the second preparatory condition includes：
The fan operation feedback signal is 1 and the cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature The absolute value of difference is less than 1 degree Celsius or the cooling tower air intake relative humidity and the difference of cooling tower air-out relative humidity Absolute value is less than 5% or fan operation feedback signal exception；
Or
The cooling water pipeline pressure is more than setting higher limit；Or
The fan operation feedback signal is zero, and the cooling water pipeline water-carrying capacity is more than 0；Or
It is described to cool down supply mains's water-carrying capacity within a preset range, and the cooling water return water temperature and cooling water supply temperature Difference 2 degrees Celsius are remained less than in preset time period；Or
The difference of the cooling water return water temperature and cooling water supply temperature is remained above 8 in the preset time period and taken the photograph Family name's degree.
The present invention also provides a kind of Air conditioning System for Hospitals cooling tower failure automatic-decision device, including：
Acquisition module is monitored, it is relative for monitoring in real time and gathering cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet Humidity, cooling water supply and return water temperature, cooling water pipeline water-carrying capacity, cooling supply mains water-carrying capacity, cooling water pipeline pressure, cooling water Valve feedback signal and fan operation feedback signal；
Computing unit, for according to the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cold gathered But water supply and return water temperature, cooling water pipeline water-carrying capacity and cooling water pipeline pressure, the change of cooling tower air inlet/outlet dry-bulb temperature is calculated Rate, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change with And cooling water pipeline pressure change rate；
Management control unit, in the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling Water supply and return water temperature, cooling water pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback Signal, air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, When cooling water pipeline water-carrying capacity rate of change and cooling water pipeline pressure change rate meet the first preparatory condition, fault message is produced And control signal, and fault alarm is triggered according to the control signal.
Preferably, the computing unit includes：
Computing module, for according to gathered cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity with And cooling water supply and return water temperature, calculate the difference of cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature, cooling tower enters The difference and the difference of cooling water return water temperature and supply water temperature of wind relative humidity and cooling tower air-out relative humidity.
Preferably, the fault message includes cooling tower power failure information, cooling tower network failure information, cooling tower wind Machine fault message, cooling water valve fault message, cooling tower open quantity and cross multi information and cooling water pipeline water-carrying capacity letter extremely Breath；Wherein, the cooling water valve fault message includes cooling water valve unlatching fault message and cooling water valve closing fault Information；
The control signal includes cooling tower power failure control signal, cooling tower network failure control signal, cooling tower Fan trouble control signal, cooling water valve failure control signal, cooling tower open the excessive control signal of quantity and cooling water pipe Road water-carrying capacity abnormal control signal；
The cooling water valve failure control signal includes cooling water valve and opens failure control signal and cooling water valve Closing fault control signal.
Preferably, the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply backwater temperature Degree, cooling water pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, air inlet/outlet Dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline water Flow change rate and cooling water pipeline pressure change rate meet that the first preparatory condition includes：
The cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water Pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal are zero；Or
The cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply back Coolant-temperature gage rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water pipeline pressure change rate are zero.
Preferably, described control unit includes：
Control module, for the cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, The difference, cooling tower disengaging relative temperature and cooling tower of cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature go out wind facies When difference and the difference of cooling water return water temperature and supply water temperature to humidity meet the second preparatory condition, failure letter is produced Breath and control signal, and fault alarm is triggered according to the control signal；
The cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry bulb temperature Degree and the difference of cooling tower air-out dry-bulb temperature, the difference of cooling tower air intake relative humidity and cooling tower air-out relative humidity, with And the difference of cooling water return water temperature and supply water temperature meets that the second preparatory condition includes：
The fan operation feedback signal is 1 and the cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature The absolute value of difference is less than 1 degree Celsius or the cooling tower air intake relative humidity and the difference of cooling tower air-out relative humidity Absolute value is less than 5% or fan operation feedback signal exception；
Or
The cooling water pipeline pressure is more than setting higher limit；Or
The fan operation feedback signal is zero, and the cooling water pipeline water-carrying capacity is more than 0；Or
It is described to cool down supply mains's water-carrying capacity within a preset range, and the cooling water return water temperature and cooling water supply temperature Difference 2 degrees Celsius are remained less than in preset time period；Or
The difference of the cooling water return water temperature and cooling water supply temperature is remained above 8 in the preset time period and taken the photograph Family name's degree.
Implement the Air conditioning System for Hospitals cooling tower failure automatic judging method and device of the present invention, have below beneficial to effect Fruit：The present invention is by the way that to Cooling Tower for Air conditioning System, each ambient parameter and operational factor monitor and count in real time in the process of running Analyzed and processed according to collection, and to data, efficiently solve cooling tower and break down and can not check and find in time and safeguard The problem of, it can not only realize that cooling water system saves, it is also ensured that the normal and Effec-tive Function of cooling water system, reduce maintenance Cost, improves ageing, can both ensure the thermal comfort of air-conditioning system, can also avoid energy waste.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is a kind of flow signal of Air conditioning System for Hospitals cooling tower failure automatic judging method embodiment one of the present invention Figure；
Fig. 2 is a kind of logic diagram of Air conditioning System for Hospitals cooling tower failure automatic-decision device embodiment one of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
The present invention is applied to hospital central air-conditioning field, more particularly to hospital's refrigeration plant cooling tower fault remote automatic decision Method.Lack ageing method compared to conventional failure guarantee and inspection, the present invention is by installed in all kinds of of cooling tower Sensor and execution unit feedback signal, and background application software (such as IBMS, Intelligent Building Management System, intelligent building management system) distant early warning and breakdown judge are carried out, it need to only be fitted in existing cooling tower When position installs dry-bulb temperature sensor and wet bulb temperature sensor additional, and by blower fan of cooling tower start and stop, gear signal, cooling water Valve switch/opening amount signal feeds back to IBMS software platforms by wire/radio network, you can it is effective screen fault pre-alarming or The cooling tower of fault alarm, failure cause is found in time, help property management personnel's timely processing problem, ensure cooling tower and collection The reliable and energy-saving operation of Chinese style air conditioner refrigerating station.
Fig. 1 is a kind of flow signal of Air conditioning System for Hospitals cooling tower failure automatic judging method embodiment one of the present invention Figure, the Air conditioning System for Hospitals cooling tower failure automatic judging method of the present embodiment can realize in IBMS systems, by installed in The signal that the execution unit of each sensor and cooling tower of Air conditioning System for Hospitals cooling tower runtime is fed back, realization pair The real-time monitoring of the operation conditions of cooling tower systems and the data acquisition of relevant parameter, while to each supplemental characteristic and feedback signal Carry out analyzing calculating processing, and realize that automatic detection judges to the failure of cooling tower systems based on analysis processing result, export phase The fault message answered and control signal effectively screen the cold of fault pre-alarming or fault alarm to trigger corresponding fault alarm But tower, failure cause is found in time, help property management personnel's timely processing failure problems and maintenance, ensure cooling tower system and collection The reliable and energy-saving operation of Chinese style air conditioner refrigerating station.
As shown in figure 1, the Air conditioning System for Hospitals cooling tower failure automatic judging method of the present embodiment comprises the following steps：
S11, monitor in real time and gather cooling tower air inlet/outlet dry-bulb temperature, the confession of cooling tower air inlet/outlet relative humidity, cooling water Return water temperature, cooling water pipeline water-carrying capacity, cooling supply mains water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal And fan operation feedback signal.
Cooling tower air inlet/outlet dry-bulb temperature includes cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature.In this reality Apply in example, cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature can use identical air temperature sensor to carry out in fact When monitoring and data acquisition, and by real-time data transmission into IBMS systems.Wherein, for monitoring cooling tower air intake dry-bulb temperature Air temperature sensor can be arranged on cooling tower surrounding side air inlet close to filler position, for monitoring cooling tower air-out dry bulb The air temperature sensor of temperature can then be arranged on cooling tower top fan outlet neighbouring position.
Cooling tower air inlet/outlet relative humidity includes cooling tower air intake relative humidity and cooling tower air-out relative humidity.In this reality Apply in example, cooling tower air intake relative humidity and cooling tower air-out relative humidity can be supervised in real time using identical humidity sensor Survey and data acquisition, and by real-time data transmission into IBMS systems.Wherein, for monitoring the wet of cooling tower air intake relative humidity Cooling tower surrounding side air inlet can be arranged on close to filler position by spending sensor, for monitoring the wet of cooling tower air-out relative humidity Degree sensor can be arranged on cooling tower top fan air outlet neighbouring position.
Cooling water supply and return water temperature includes cooling water supply temperature and cooling water return water temperature.In the present embodiment, cool down Tower supply water temperature and cooling tower return water temperature can use identical cooling-water temperature sensor to carry out monitoring and data acquisition in real time, and by number According to real-time Transmission into IBMS systems.Wherein, cooling-water temperature sensor is separately mounted to cooling tower water supply water pipe straight tube fragment position and cold But tower backwater water pipe straight tube fragment position.
Cooling water pipeline water-carrying capacity can carry out monitoring and data in real time by water ga(u)ge to the water-carrying capacity of cooling water pipeline Collection, wherein, cooling water pipeline water-carrying capacity is the water-carrying capacity of cooling tower water supply water pipe straight length, and water ga(u)ge can be arranged on cooling Tower water supply water pipe straight tube fragment position.
Water-carrying capacity of supply mains's water-carrying capacity for cooling supply mains's pipeline is cooled down, it can be used with measuring cooling water pipeline current The water ga(u)ge identical water ga(u)ge of amount.
Cooling water pipeline pressure can be monitored by pressure sensor and data acquisition, wherein, pressure sensor can be installed After cooling tower water supply water pipe straight tube fragment position, cooling water pump.
Cooling water valve feedback signal includes cooling water valve door switch, opening amount signal, and cooling water valve aperture is by cooling water The feedback device set in valve is monitored to the aperture size of valve, and then is converted to corresponding signal and is fed back to IBMS controls In system processed, wherein, 0% represents that cooling water valve is fully closed, and 100% represents cooling water valve standard-sized sheet.
Fan operation feedback signal, the monitoring running state module that can be carried when cold emission air-conditioning system is run by blower fan It is monitored and feeds back, i.e., be arranged on monitoring modular in the blower fan of the present embodiment, the monitoring modular can monitors the fortune of blower fan in real time Signal corresponding to row state and conversion is fed back in IBMS control systems.Wherein, fan operation feedback signal is data signal, example Such as can be 0 and 1,0 to represent that blower fan stops, 1 represents blower fan standard-sized sheet and normal, when the signal of blower fan feedback be non-zero non-1 numeral letter Number when, then show blower fan feedback is abnormal signal, and in other words, blower fan is abnormal.
It should be noted that in this step, collection of each sensor to data is transmitted as a mistake for continuing, being spaced Journey, wherein, the time interval of data acquisition can be configured in advance, such as 1 minute, 2 minutes, 5 minutes or 15 minutes, the present invention It is not especially limited.
It is to be appreciated that each sensor and the signal of execution unit feedback are transmitted into IBMS control systems, specially pass Transport in IBMS control systems in the processor (or controller) with data operation processing function, by the processor (or control Device) data and signal are analyzed and processed, judged.Wherein, processor referred herein (or controller) includes but unlimited In microprocessor, microcontroller, digital signal processor, micro calculator or central processing unit etc..
S12, the air inlet/outlet dry-bulb temperature according to being gathered, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, Cooling water pipeline water-carrying capacity and cooling water pipeline pressure, it is relatively wet to calculate air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet Spend rate of change, cooling water supply and return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water pipeline pressure change Rate.
In this step, it is necessary to which explanation, cooling tower air inlet/outlet dry-bulb temperature rate of change include cooling tower air intake dry bulb Rate of temperature change and cooling tower air-out dry-bulb temperature rate of change.It is relatively wet that cooling tower air inlet/outlet relative humidity includes cooling tower air intake Degree and cooling tower air-out relative humidity.Cooling water supply and return water temperature rate of change includes cooling water supply temperature rate of change and cooling water Return water temperature rate of change.
Further, cooling tower air intake dry-bulb temperature rate of change can by current time cooling tower air intake dry-bulb temperature with it is upper The cooling tower air intake dry-bulb temperature at one moment make after difference operation again divided by prefixed time interval, that is, obtain cooling tower enter it is air-dried Ball rate of temperature change.For example, it is assumed that the cooling tower air intake dry-bulb temperature of last moment is Tt-1, the cooling tower air intake at current time Dry-bulb temperature is Tt, prefixed time interval is △ t, then the rate of change of cooling tower air intake dry-bulb temperature is (Tt-1-Tt)/△t.Together Reason, the rate of change of other specification can carry out calculating acquisition by the computational methods.
Preferably, step S12 also includes：According to cooling tower air inlet/outlet dry-bulb temperature, the cooling tower disengaging wind facies gathered To humidity and cooling water supply and return water temperature, the difference of calculating cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature, The difference and the difference of cooling water return water temperature and supply water temperature of cooling tower air intake relative humidity and cooling tower air-out relative humidity Value.
S13, cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling Water lines water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, air inlet/outlet dry bulb temperature Spend rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline current quantitative change When rate and cooling water pipeline pressure change rate meet the first preparatory condition, generation fault message and control signal, and according to Control signal triggers fault alarm.
Fault message for example may include cooling tower power failure information, cooling tower network failure information, blower fan of cooling tower event Barrier information, cooling water valve fault message, cooling tower open quantity and cross multi information and cooling water pipeline water-carrying capacity abnormal information；Its In, cooling water valve fault message includes cooling water valve and opens fault message and cooling water valve closing fault information.
Control signal for example may include cooling tower power failure control signal, cooling tower network failure control signal, cooling Tower fan trouble control signal, cooling water valve failure control signal, cooling tower open the excessive control signal of quantity and cooling water Pipeline water-carrying capacity abnormal control signal.Wherein, cooling water valve failure control signal includes cooling water valve unlatching Fault Control Signal and cooling water valve closing fault control signal.
Preferably, in the present embodiment, step S13 also includes：
In cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry-bulb temperature Difference with cooling tower air-out dry-bulb temperature, the difference of cooling tower disengaging relative temperature and cooling tower air-out relative humidity and When the difference of cooling water return water temperature and supply water temperature meets the second preparatory condition, fault message and control signal, and root are produced Fault alarm is triggered according to control signal.
Specifically, in step s 13, can be by administrative staff in air-conditioning on the first preparatory condition and the second preparatory condition Acquisition is pre-set before system boot operation.For example, administrative staff can set first in advance when air-conditioning system first powers on Preparatory condition and the second preparatory condition, or can also be in central air conditioner system running, by inputting a certain preset mouth After order carry out preparatory condition setting, operationally export a certain trigger condition in a manner of triggering preset password also can, this hair Bright embodiment is not specifically limited.It can be stored for the first preparatory condition and the second preparatory condition by various memory devices, Each memory device can be made up of one or more storage assemblies.
Wherein, cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling Water lines water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, air inlet/outlet dry bulb temperature Spend rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline current quantitative change Rate and cooling water pipeline pressure change rate meet that the first preparatory condition includes：
Cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water pipeline Water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal are zero；Or
Cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply backwater temperature It is zero to spend rate of change, cooling water pipeline water-carrying capacity rate of change, cooling water pipeline pressure change rate.
Cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry-bulb temperature with The difference of cooling tower air-out dry-bulb temperature, the difference of cooling tower air intake relative humidity and cooling tower air-out relative humidity, Yi Jileng But the difference of water return water temperature and supply water temperature meets that the second preparatory condition includes：
Fan operation feedback signal be 1 and cooling tower air intake dry-bulb temperature and the difference of cooling tower air-out dry-bulb temperature it is exhausted The absolute value for being worth the difference less than 1 degree Celsius, cooling tower air intake relative humidity and cooling tower air-out relative humidity is less than 5% or Person's fan operation feedback signal is abnormal；
Or cooling water pipeline pressure is more than setting higher limit；Or
Fan operation feedback signal is zero, and cooling water pipeline water-carrying capacity is more than 0；Or
Cool down supply mains's water-carrying capacity within a preset range, and the difference of cooling water return water temperature and cooling water supply temperature exists 2 degrees Celsius are remained less than in preset time period；Or
The difference of cooling water return water temperature and cooling water supply temperature is remained above 8 degrees Celsius in preset time period.
In order that the method for the present embodiment is more clearly understood, below to the present embodiment step S13 specific control process It is described in detail.
If the cooling tower air intake dry-bulb temperature at the current time that IBMS systems are gathered, cooling tower air-out dry-bulb temperature, cold But tower air intake relative humidity, cooling tower air-out relative humidity, cooling water supply temperature, cooling water return water temperature, cooling water pipeline Water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal are zero, then can determine whether cold But there is power failure, and then output power fault message and power failure control signal in tower, and according to the event of caused electric power Hinder control signal triggering power failure alarm, realize that power failure occur in real-time informing administrative staff, and by power failure information Inform administrative staff.
Or if IBMS systems are computed judging：Cooling tower air intake dry-bulb temperature rate of change, cooling tower air-out dry-bulb temperature Rate of change, cooling tower air intake relative humidity variations rate, cooling tower air-out relative humidity variations rate, cooling water supply temperature change Rate, cooling water return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change, cooling water pipeline pressure change rate are zero, then It can determine whether that network failure occurs in cooling tower, and then export cooling tower network failure information and cooling tower network failure control signal, And network failure alarm is triggered according to caused network failure control signal, there is network failure in real-time informing administrative staff, And network failure information is informed into administrative staff.
Or if IBMS systems are computed judging：Feedback signal of running according to circumstances corresponding with cooling tower is entered for 1 and cooling tower Wind dry-bulb temperature and the absolute value of the difference of cooling tower air-out dry-bulb temperature are less than 1 degree Celsius, then can determine whether out that cooling tower occurs Fan trouble, and then blower fan of cooling tower fault message and blower fan of cooling tower failure control signal are exported, and according to caused wind There is fan trouble in the triggering fan trouble alarm of machine failure control signal, real-time informing administrative staff's cooling tower, and blower fan is former Barrier information informs administrative staff.If the or absolute value of cooling tower air intake relative humidity and the difference of cooling tower air-out relative humidity Less than 5%；Or (i.e. fan operation feedback signal is non-zero non-1 signal to fan operation feedback signal exception, be can determine whether cold But there is fan trouble in tower.
Or if the cooling water pipeline pressure acquired in IBMS systems is more than setting higher limit, it can determine whether cooling water water Pipe pipe valve opens failure, and then exports cooling water water pipe line valve opening fault message and cooling water valve unlatching failure Control signal.Or if the fan operation feedback signal that IBMS systems are gathered is zero, and corresponding cooling water pipeline water-carrying capacity More than 0, then cooling water water pipe line valve closing fault is can determine whether, and then export cooling water water pipe line valve closing fault letter Breath and cooling water valve closing fault control signal.
Or if the cooling supply mains water-carrying capacity that is gathered of IBMS systems within a preset range (for example, preset range can be set It is set to：Cooling supply mains's water-carrying capacity is less than setting value more than 0), and the difference of cooling water return water temperature and cooling water supply temperature 2 degrees Celsius are remained less than in preset time period, then can determine whether that cooling tower occurs that unlatching quantity crosses multi information and cooling tower is opened Open the excessive control signal of quantity.
Or if the cooling water return water temperature and the difference of cooling water supply temperature that IBMS systems are gathered in preset time 8 degrees Celsius are remained above in section, then can determine whether that cooling water pipeline water-carrying capacity abnormal information and cooling water pipeline water occurs in cooling tower Traffic Anomaly control signal, cooling water pipeline water-carrying capacity is triggered according to caused cooling water pipeline water-carrying capacity abnormal control signal Abnormal alarm, to prompt administrative staff accordingly overhaul and safeguard.
Fig. 2 is the logic diagram of Air conditioning System for Hospitals cooling tower failure automatic-decision device embodiment one of the present invention.At this Embodiment, Air conditioning System for Hospitals cooling tower failure automatic-decision device include：
Acquisition module 11 is monitored, for monitoring in real time and gathering cooling tower air inlet/outlet dry-bulb temperature, cooling tower disengaging wind facies To humidity, cooling water supply and return water temperature, cooling water pipeline water-carrying capacity, cooling supply mains water-carrying capacity, cooling water pipeline pressure, cooling Penstock feedback signal and fan operation feedback signal.
Wherein, the data that monitoring acquisition module 11 is monitored and gathered are by various kinds of sensors and cooling tower execution unit biography It is defeated or feedback.Various kinds of sensors may include：Air temperature sensor, humidity sensor, cooling-water temperature sensor, water ga(u)ge, pressure Any one or more combination in force snesor, cooling water valve and blower fan.
Further, cooling tower air inlet/outlet dry-bulb temperature includes cooling tower air intake dry-bulb temperature and cooling tower air-out dry bulb temperature Degree.In the present embodiment, cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature can use identical air themperature to pass Sensor carries out monitoring and data acquisition, and by real-time data transmission into IBMS systems in real time.Wherein, enter for monitoring cooling tower The air temperature sensor of wind dry-bulb temperature can be arranged on cooling tower surrounding side air inlet close to filler position, be cooled down for monitoring The air temperature sensor of tower air-out dry-bulb temperature can then be arranged on cooling tower top fan outlet neighbouring position.
Cooling tower air inlet/outlet relative humidity includes cooling tower air intake relative humidity and cooling tower air-out relative humidity.In this reality Apply in example, cooling tower air intake relative humidity and cooling tower air-out relative humidity can be supervised in real time using identical humidity sensor Survey and data acquisition, and by real-time data transmission into IBMS systems.Wherein, for monitoring the wet of cooling tower air intake relative humidity Cooling tower surrounding side air inlet can be arranged on close to filler position by spending sensor, for monitoring the wet of cooling tower air-out relative humidity Degree sensor can be arranged on cooling tower top fan air outlet neighbouring position.
Cooling water supply and return water temperature includes cooling water supply temperature and cooling water return water temperature.In the present embodiment, cool down Tower supply water temperature and cooling tower return water temperature can use identical cooling-water temperature sensor to carry out monitoring and data acquisition in real time, and by number According to real-time Transmission into IBMS systems.Wherein, cooling-water temperature sensor is separately mounted to cooling tower water supply water pipe straight tube fragment position and cold But tower backwater water pipe straight tube fragment position.
Cooling water pipeline water-carrying capacity can carry out monitoring and data in real time by water ga(u)ge to the water-carrying capacity of cooling water pipeline Collection, wherein, cooling water pipeline water-carrying capacity is the water-carrying capacity of cooling tower water supply water pipe straight length, and water ga(u)ge can be arranged on cooling Tower water supply water pipe straight tube fragment position.
Water-carrying capacity of supply mains's water-carrying capacity for cooling supply mains's pipeline is cooled down, it can be used with measuring cooling water pipeline current The water ga(u)ge identical water ga(u)ge of amount.
Cooling water pipeline pressure can be monitored by pressure sensor and data acquisition, wherein, pressure sensor can be installed After cooling tower water supply water pipe straight tube fragment position, cooling water pump.
Cooling water valve feedback signal includes cooling water valve door switch, opening amount signal, and cooling water valve aperture is by cooling water The feedback device set in valve is monitored to the aperture size of valve, and then is converted to corresponding signal and is fed back to IBMS controls In system processed, wherein, 0% represents that cooling water valve is fully closed, and 100% represents cooling water valve standard-sized sheet.
Fan operation feedback signal, the monitoring running state module that can be carried when cold emission air-conditioning system is run by blower fan It is monitored and feeds back, i.e., be arranged on monitoring modular in the blower fan of the present embodiment, the monitoring modular can monitors the fortune of blower fan in real time Signal corresponding to row state and conversion is fed back in IBMS control systems.Wherein, fan operation feedback signal is data signal, example Such as can be 0 and 1,0 to represent that blower fan stops, 1 represents blower fan standard-sized sheet and normal, when the signal of blower fan feedback be non-zero non-1 numeral letter Number when, then show blower fan feedback is abnormal signal, and in other words, blower fan is abnormal.
It should be noted that in this step, collection of each sensor to data is transmitted as a mistake for continuing, being spaced Journey, wherein, the time interval of data acquisition can be configured in advance, such as 1 minute, 2 minutes, 5 minutes or 15 minutes, the present invention It is not especially limited.
It is to be appreciated that each sensor and the signal of execution unit feedback are transmitted into IBMS control systems, specially pass Transport in IBMS control systems in the processor (or controller) with data operation processing function, by the processor (or control Device) data and signal are analyzed and processed, judged.Wherein, processor referred herein (or controller) includes but unlimited In microprocessor, microcontroller, digital signal processor, micro calculator or central processing unit etc..
Computing unit 12, for according to air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, the cooling water gathered Supply and return water temperature, cooling water pipeline water-carrying capacity and cooling water pipeline pressure, calculate air inlet/outlet dry-bulb temperature rate of change, cooling tower enters Air-out relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water pipe Road pressure change rate.
It should be noted that cooling tower air inlet/outlet dry-bulb temperature rate of change include cooling tower air intake dry-bulb temperature rate of change and Cooling tower air-out dry-bulb temperature rate of change.Cooling tower air inlet/outlet relative humidity includes cooling tower air intake relative humidity and cooling tower goes out Wind relative humidity.Cooling water supply and return water temperature rate of change includes cooling water supply temperature rate of change and cooling water return water temperature changes Rate.
Further, cooling tower air intake dry-bulb temperature rate of change can by current time cooling tower air intake dry-bulb temperature with it is upper The cooling tower air intake dry-bulb temperature at one moment make after difference operation again divided by prefixed time interval, that is, obtain cooling tower enter it is air-dried Ball rate of temperature change.For example, it is assumed that the cooling tower air intake dry-bulb temperature of last moment is Tt-1, the cooling tower air intake at current time Dry-bulb temperature is Tt, prefixed time interval is △ t, then the rate of change of cooling tower air intake dry-bulb temperature is (Tt-1-Tt)/△t.Together Reason, the rate of change of other specification can carry out calculating acquisition by the computational methods.
Preferably, in the present embodiment, computing unit 12 includes：
Computing module 1201, for relatively wet according to the cooling tower air inlet/outlet dry-bulb temperature, the cooling tower air inlet/outlet that are gathered Degree and cooling water supply and return water temperature, calculate difference, the cooling of cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature The difference and the difference of cooling water return water temperature and supply water temperature of tower air intake relative humidity and cooling tower air-out relative humidity.
Management control unit 13, in cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water Supply and return water temperature, cooling water pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback letter Number, it is air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cold But when water lines water-carrying capacity rate of change and cooling water pipeline pressure change rate meet the first preparatory condition, produce fault message and Control signal, and fault alarm is triggered according to control signal.
Fault message include cooling tower power failure information, cooling tower network failure information, blower fan of cooling tower fault message, Cooling water valve fault message, cooling tower open quantity and cross multi information and cooling water pipeline water-carrying capacity abnormal information；Wherein, cool down Penstock fault message includes cooling water valve and opens fault message and cooling water valve closing fault information.
Control signal includes cooling tower power failure control signal, cooling tower network failure control signal, blower fan of cooling tower Failure control signal, cooling water valve failure control signal, cooling tower open the excessive control signal of quantity and cooling water pipeline water Traffic Anomaly control signal.Wherein, cooling water valve failure control signal include cooling water valve open failure control signal and Cooling water valve closing fault control signal.
Control unit includes：
Control module 1301, for cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, The difference, cooling tower disengaging relative temperature and cooling tower of cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature go out wind facies When difference and the difference of cooling water return water temperature and supply water temperature to humidity meet the second preparatory condition, failure letter is produced Breath and control signal, and fault alarm is triggered according to control signal；
Cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry-bulb temperature with The difference of cooling tower air-out dry-bulb temperature, the difference of cooling tower air intake relative humidity and cooling tower air-out relative humidity, Yi Jileng But the difference of water return water temperature and supply water temperature meets that the second preparatory condition includes：
Fan operation feedback signal be 1 and cooling tower air intake dry-bulb temperature and the difference of cooling tower air-out dry-bulb temperature it is exhausted The absolute value for being worth the difference less than 1 degree Celsius, cooling tower air intake relative humidity and cooling tower air-out relative humidity is less than 5% or Person's fan operation feedback signal is abnormal；
Or cooling water pipeline pressure is more than setting higher limit；Or
Fan operation feedback signal is zero, and cooling water pipeline water-carrying capacity is more than 0；Or
Cool down supply mains's water-carrying capacity within a preset range, and the difference of cooling water return water temperature and cooling water supply temperature exists 2 degrees Celsius are remained less than in preset time period；Or
The difference of cooling water return water temperature and cooling water supply temperature is remained above 8 degrees Celsius in preset time period.
Specifically, it can be started shooting and run in air-conditioning system by administrative staff on the first preparatory condition and the second preparatory condition Before pre-set acquisition.For example, administrative staff can set the first preparatory condition and in advance when air-conditioning system first powers on Two preparatory conditions, or can also be in central air conditioner system running, by being preset after inputting a certain preset password The setting of condition, operationally export a certain trigger condition in a manner of triggering preset password also can, embodiments of the invention are not It is specifically limited.It can be stored for the first preparatory condition and the second preparatory condition by various memory devices, each memory device can It is made up of one or more storage assemblies.
Wherein, cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling Water lines water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, air inlet/outlet dry bulb temperature Spend rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline current quantitative change Rate and cooling water pipeline pressure change rate meet that the first preparatory condition includes：
Cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water pipeline Water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal are zero；Or
Cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply backwater temperature It is zero to spend rate of change, cooling water pipeline water-carrying capacity rate of change, cooling water pipeline pressure change rate.
Cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry-bulb temperature with The difference of cooling tower air-out dry-bulb temperature, the difference of cooling tower air intake relative humidity and cooling tower air-out relative humidity, Yi Jileng But the difference of water return water temperature and supply water temperature meets that the second preparatory condition includes：
Fan operation feedback signal be 1 and cooling tower air intake dry-bulb temperature and the difference of cooling tower air-out dry-bulb temperature it is exhausted The absolute value for being worth the difference less than 1 degree Celsius, cooling tower air intake relative humidity and cooling tower air-out relative humidity is less than 5% or Person's fan operation feedback signal is abnormal；
Or cooling water pipeline pressure is more than setting higher limit；Or
Fan operation feedback signal is zero, and cooling water pipeline water-carrying capacity is more than 0；Or
Cool down supply mains's water-carrying capacity within a preset range, and the difference of cooling water return water temperature and cooling water supply temperature exists 2 degrees Celsius are remained less than in preset time period；Or
The difference of cooling water return water temperature and cooling water supply temperature is remained above 8 degrees Celsius in preset time period.
In order that the method for the present embodiment is more clearly understood, below to the specific control of the present embodiment management control unit 13 Process processed is described in detail.
If the cooling tower air intake dry-bulb temperature at the current time that the management control unit 13 in IBMS systems is gathered, cooling Tower air-out dry-bulb temperature, cooling tower air intake relative humidity, cooling tower air-out relative humidity, cooling water supply temperature, cooling water return Coolant-temperature gage, cooling water pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal It is zero, then can determine whether that power failure, and then output power fault message and power failure control signal, and root occurs in cooling tower According to the triggering power failure alarm of caused power failure control signal, realize that power failure occur in real-time informing administrative staff, And power failure information is informed into administrative staff.
Or if the management control unit 13 in IBMS systems is computed judging：Cooling tower air intake dry-bulb temperature rate of change, It is cooling tower air-out dry-bulb temperature rate of change, cooling tower air intake relative humidity variations rate, cooling tower air-out relative humidity variations rate, cold But water supply water temperature rate of change, cooling water return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change, cooling water pipeline pressure Rate of change is zero, then can determine whether that network failure occurs in cooling tower, and then export cooling tower network failure information and cooling tower net Network failure control signal, and network failure alarm, real-time informing custodian are triggered according to caused network failure control signal There is network failure in member, and network failure information is informed into administrative staff.
Or if the control module 1301 in the management control unit 13 of IBMS systems is computed judging：With cooling tower pair That answers runs feedback signal as 1 and cooling tower air intake dry-bulb temperature and the absolute value of the difference of cooling tower air-out dry-bulb temperature according to circumstances Less than 1 degree Celsius, then it can determine whether out that fan trouble occurs in cooling tower, and then export blower fan of cooling tower fault message and cooling tower wind Machine failure control signal, and fan trouble alarm, real-time informing custodian are triggered according to caused fan trouble control signal There is fan trouble in member's cooling tower, and fan trouble information is informed into administrative staff.If or cooling tower air intake relative humidity with The absolute value of the difference of cooling tower air-out relative humidity is less than 5%；Or (i.e. fan operation is anti-for fan operation feedback signal exception Feedback signal is non-zero non-1 signal, can determine whether that fan trouble occurs in cooling tower.
Or if cooling water pipeline pressure acquired in control module 1301 in the management control unit 13 of IBMS systems More than setting higher limit, then cooling water water pipe line valve opening failure is can determine whether, and then export cooling water water pipe line valve Open fault message and cooling water valve opens failure control signal.If the or fan operation feedback letter that IBMS systems are gathered Number it is zero, and corresponding cooling water pipeline water-carrying capacity is more than 0, then can determine whether cooling water water pipe line valve closing fault, and then Export cooling water water pipe line valve closing fault information and cooling water valve closing fault control signal.
Or if cooling supply mains's current that the control module 1301 in the management control unit 13 of IBMS systems is gathered Amount is within a preset range (for example, preset range may be set to：Cooling supply mains's water-carrying capacity is less than setting value more than 0), and cool down The difference of water return water temperature and cooling water supply temperature remains less than 2 degrees Celsius in preset time period, then can determine whether cooling tower Occur opening quantity and cross multi information and cooling tower and open the excessive control signal of quantity.
Or the if cooling water return water temperature that the control module 1301 in the management control unit 13 of IBMS systems is gathered 8 degrees Celsius are remained above in preset time period with the difference of cooling water supply temperature, then can determine whether that cooling water occurs in cooling tower Pipeline water-carrying capacity abnormal information and cooling water pipeline water-carrying capacity abnormal control signal, according to caused cooling water pipeline water-carrying capacity Abnormal control signal triggers cooling water pipeline water-carrying capacity abnormal alarm, to prompt administrative staff accordingly overhaul and safeguard.
Above example only technical concepts and features to illustrate the invention, its object is to allow person skilled in the art Scholar can understand present disclosure and implement accordingly, can not limit the scope of the invention.It is all to be wanted with right of the present invention The equivalent changes and modifications that scope is done are sought, the covering scope of the claims in the present invention all should be belonged to.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted, And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.

Claims (10)

1. a kind of Air conditioning System for Hospitals cooling tower failure automatic judging method, it is characterised in that comprise the following steps：
S11, monitor in real time and gather cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply backwater Temperature, cooling water pipeline water-carrying capacity, cooling supply mains water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and Fan operation feedback signal；
S12, the cooling tower air inlet/outlet dry-bulb temperature according to being gathered, cooling tower air inlet/outlet relative humidity, cooling water supply backwater temperature Degree, cooling water pipeline water-carrying capacity and cooling water pipeline pressure, calculate cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower disengaging Wind relative humidity rate of change, cooling water supply and return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water pipeline Pressure change rate；
S13, the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling Water lines water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, air inlet/outlet dry bulb temperature Spend rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline current quantitative change When rate and cooling water pipeline pressure change rate meet the first preparatory condition, generation fault message and control signal, and according to The control signal triggers fault alarm.
2. Air conditioning System for Hospitals cooling tower failure automatic judging method according to claim 1, it is characterised in that the step Rapid S12 also includes：
Backwater temperature is supplied according to cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity and the cooling water gathered Degree, calculate the difference, cooling tower air intake relative humidity and cooling of cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature The difference and the difference of cooling water return water temperature and supply water temperature of tower air-out relative humidity.
3. Air conditioning System for Hospitals cooling tower failure automatic judging method according to claim 1, it is characterised in that the event Hindering information includes cooling tower power failure information, cooling tower network failure information, blower fan of cooling tower fault message, cooling water valve Fault message, cooling tower open quantity and cross multi information and cooling water pipeline water-carrying capacity abnormal information；Wherein, the cooling water valve Fault message includes cooling water valve and opens fault message and cooling water valve closing fault information；
The control signal includes cooling tower power failure control signal, cooling tower network failure control signal, blower fan of cooling tower Failure control signal, cooling water valve failure control signal, cooling tower open the excessive control signal of quantity and cooling water pipeline water Traffic Anomaly control signal；
The cooling water valve failure control signal includes cooling water valve and opens failure control signal and cooling water valve closing Failure control signal.
4. Air conditioning System for Hospitals cooling tower failure automatic judging method according to claim 3, it is characterised in that the step In rapid S13, the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water Pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, air inlet/outlet dry-bulb temperature Rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, the change of cooling water pipeline water-carrying capacity Rate and cooling water pipeline pressure change rate meet that the first preparatory condition includes：
The cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water pipeline Water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal are zero；Or
The cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply backwater temperature It is zero to spend rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water pipeline pressure change rate.
5. Air conditioning System for Hospitals cooling tower failure automatic judging method according to claim 2, it is characterised in that the step Rapid S13 also includes：
In the cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry-bulb temperature Difference with cooling tower air-out dry-bulb temperature, the difference of cooling tower disengaging relative temperature and cooling tower air-out relative humidity and When the difference of cooling water return water temperature and supply water temperature meets the second preparatory condition, fault message and control signal, and root are produced Fault alarm is triggered according to the control signal；
The cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry-bulb temperature with The difference of cooling tower air-out dry-bulb temperature, the difference of cooling tower air intake relative humidity and cooling tower air-out relative humidity, Yi Jileng But the difference of water return water temperature and supply water temperature meets that the second preparatory condition includes：
The fan operation feedback signal is the difference of 1 and the cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature Absolute value be less than the absolute of 1 degree Celsius or the cooling tower air intake relative humidity and the difference of cooling tower air-out relative humidity Value is less than 5% or the fan operation feedback signal is abnormal；
Or
The cooling water pipeline pressure is more than setting higher limit；Or
The fan operation feedback signal is zero, and the cooling water pipeline water-carrying capacity is more than 0；Or
It is described to cool down supply mains's water-carrying capacity within a preset range, and the difference of the cooling water return water temperature and cooling water supply temperature Value remains less than 2 degrees Celsius in preset time period；Or
It is Celsius that the difference of the cooling water return water temperature and cooling water supply temperature is remained above 8 in the preset time period Degree.
A kind of 6. Air conditioning System for Hospitals cooling tower failure automatic-decision device, it is characterised in that including：
Monitor acquisition module, in real time monitor and gather cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, Cooling water supply and return water temperature, cooling water pipeline water-carrying capacity, cooling supply mains water-carrying capacity, cooling water pipeline pressure, cooling water valve Feedback signal and fan operation feedback signal；
Computing unit, for according to cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, the cooling water gathered Supply and return water temperature, cooling water pipeline water-carrying capacity and cooling water pipeline pressure, calculate cooling tower air inlet/outlet dry-bulb temperature rate of change, cold But tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change and cold But water lines pressure change rate；
Management control unit, for being supplied in the cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water Return water temperature, cooling water pipeline water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal, fan operation feedback signal, Air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water When pipeline water-carrying capacity rate of change and cooling water pipeline pressure change rate meet the first preparatory condition, fault message and control are produced Signal, and fault alarm is triggered according to the control signal.
7. Air conditioning System for Hospitals cooling tower failure automatic-decision device according to claim 6, it is characterised in that the meter Calculating unit includes：
Computing module, for according to gathered cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity and cold But water supply and return water temperature, the difference of cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature is calculated, cooling tower enters wind facies To humidity and the difference and the difference of cooling water return water temperature and supply water temperature of cooling tower air-out relative humidity.
8. Air conditioning System for Hospitals cooling tower failure automatic-decision device according to claim 6, it is characterised in that the event Hindering information includes cooling tower power failure information, cooling tower network failure information, blower fan of cooling tower fault message, cooling water valve Fault message, cooling tower open quantity and cross multi information and cooling water pipeline water-carrying capacity abnormal information；Wherein, the cooling water valve Fault message includes cooling water valve and opens fault message and cooling water valve closing fault information；
The control signal includes cooling tower power failure control signal, cooling tower network failure control signal, blower fan of cooling tower Failure control signal, cooling water valve failure control signal, cooling tower open the excessive control signal of quantity and cooling water pipeline water Traffic Anomaly control signal；
The cooling water valve failure control signal includes cooling water valve and opens failure control signal and cooling water valve closing Failure control signal.
9. Air conditioning System for Hospitals cooling tower failure automatic-decision device according to claim 6, it is characterised in that described cold But tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water pipeline water-carrying capacity, cold But water lines pressure, cooling water valve feedback signal, fan operation feedback signal, air inlet/outlet dry-bulb temperature rate of change, cooling tower Air inlet/outlet relative humidity variations rate, cooling water supply and return water temperature rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water Variations in line pressure rate meets that the first preparatory condition includes：
The cooling tower air inlet/outlet dry-bulb temperature, cooling tower air inlet/outlet relative humidity, cooling water supply and return water temperature, cooling water pipeline Water-carrying capacity, cooling water pipeline pressure, cooling water valve feedback signal and fan operation feedback signal are zero；Or
The cooling tower air inlet/outlet dry-bulb temperature rate of change, cooling tower air inlet/outlet relative humidity variations rate, cooling water supply backwater temperature It is zero to spend rate of change, cooling water pipeline water-carrying capacity rate of change and cooling water pipeline pressure change rate.
10. Air conditioning System for Hospitals cooling tower failure automatic-decision device according to claim 7, it is characterised in that described Control unit includes：
Control module, in the cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling Tower air intake dry-bulb temperature and the difference, cooling tower disengaging relative temperature and cooling tower air-out of cooling tower air-out dry-bulb temperature are relative wet When the difference and the difference of cooling water return water temperature and supply water temperature of degree meet the second preparatory condition, produce fault message and Control signal, and fault alarm is triggered according to the control signal；
The cooling water pipeline pressure, fan operation feedback signal, cooling water pipeline water-carrying capacity, cooling tower air intake dry-bulb temperature with The difference of cooling tower air-out dry-bulb temperature, the difference of cooling tower air intake relative humidity and cooling tower air-out relative humidity, Yi Jileng But the difference of water return water temperature and supply water temperature meets that the second preparatory condition includes：
The fan operation feedback signal is the difference of 1 and the cooling tower air intake dry-bulb temperature and cooling tower air-out dry-bulb temperature Absolute value be less than the absolute of 1 degree Celsius or the cooling tower air intake relative humidity and the difference of cooling tower air-out relative humidity Value is less than 5% or the fan operation feedback signal is abnormal；
Or
The cooling water pipeline pressure is more than setting higher limit；Or
The fan operation feedback signal is zero, and the cooling water pipeline water-carrying capacity is more than 0；Or
It is described to cool down supply mains's water-carrying capacity within a preset range, and the difference of the cooling water return water temperature and cooling water supply temperature Value remains less than 2 degrees Celsius in preset time period；Or
It is Celsius that the difference of the cooling water return water temperature and cooling water supply temperature is remained above 8 in the preset time period Degree.
CN201710826048.1A 2017-09-14 2017-09-14 A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device Pending CN107676923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710826048.1A CN107676923A (en) 2017-09-14 2017-09-14 A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710826048.1A CN107676923A (en) 2017-09-14 2017-09-14 A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device

Publications (1)

Publication Number Publication Date
CN107676923A true CN107676923A (en) 2018-02-09

Family

ID=61136477

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710826048.1A Pending CN107676923A (en) 2017-09-14 2017-09-14 A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device

Country Status (1)

Country Link
CN (1) CN107676923A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109282546A (en) * 2018-09-27 2019-01-29 珠海格力电器股份有限公司 Detection method and detection system for heat pump dryer
CN109612015A (en) * 2018-12-24 2019-04-12 珠海格力电器股份有限公司 Control protection method for air conditioner and air conditioner
CN109900130A (en) * 2019-04-17 2019-06-18 山西宏明空调科技有限公司 A kind of anti-white cigarette type cross flow cooling tower
CN109945394A (en) * 2019-01-22 2019-06-28 中山大学 A kind of small temperature difference syndrome Precise Diagnosis method of freezing water system of central air conditioner
CN110207321A (en) * 2019-06-10 2019-09-06 珠海格力电器股份有限公司 Self-adjusting fault processing method and equipment and air conditioning system
CN110703016A (en) * 2019-09-29 2020-01-17 江苏华复保利环保科技有限公司 Online comprehensive diagnosis integrated device for open cooling tower
CN110715814A (en) * 2019-09-29 2020-01-21 江苏华复保利环保科技有限公司 Online comprehensive diagnosis system and method for open cooling tower
CN112710059A (en) * 2020-12-28 2021-04-27 椭圆方程（深圳）信息技术有限公司 Automatic fault diagnosis method and device for building air conditioning cabinet
CN113154897A (en) * 2021-04-13 2021-07-23 上海电气斯必克工程技术有限公司 Long-range fortune dimension system of thermal power plant air cooling system
CN114322634A (en) * 2021-12-29 2022-04-12 博锐尚格科技股份有限公司 Data screening method and device for refrigerating system strategy model
CN115013734A (en) * 2022-06-17 2022-09-06 邯郸钢铁集团有限责任公司 Finishing mill working roll cooling water regulating valve opening feedback control method
CN115544736A (en) * 2022-09-15 2022-12-30 宏明科技集团有限公司 Cooling tower control system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120185728A1 (en) * 2010-12-24 2012-07-19 Commonwealth Scientific And Industrial Research Organisation System and method for detecting and/or diagnosing faults in multi-variable systems
CN203810653U (en) * 2014-05-06 2014-09-03 苏州工业园区通益电气有限公司 Intelligent fan coiler state monitoring system
CN104949271A (en) * 2015-06-15 2015-09-30 小米科技有限责任公司 Method and device for monitoring temperature adjusting device
US20160215996A1 (en) * 2015-01-26 2016-07-28 Trane International Inc. Diagnostic data bus for acquiring and communicating diagnostic information from hvac systems
US20160370799A1 (en) * 2015-06-19 2016-12-22 Trane International Inc. Self-learning fault detection for hvac systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120185728A1 (en) * 2010-12-24 2012-07-19 Commonwealth Scientific And Industrial Research Organisation System and method for detecting and/or diagnosing faults in multi-variable systems
CN203810653U (en) * 2014-05-06 2014-09-03 苏州工业园区通益电气有限公司 Intelligent fan coiler state monitoring system
US20160215996A1 (en) * 2015-01-26 2016-07-28 Trane International Inc. Diagnostic data bus for acquiring and communicating diagnostic information from hvac systems
CN104949271A (en) * 2015-06-15 2015-09-30 小米科技有限责任公司 Method and device for monitoring temperature adjusting device
US20160370799A1 (en) * 2015-06-19 2016-12-22 Trane International Inc. Self-learning fault detection for hvac systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王海涛: "变风量空调***在线故障检测与诊断方法与应用研究", 《中国博士学位论文全文数据库（电子期刊）工程科技Ⅱ辑》 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109282546A (en) * 2018-09-27 2019-01-29 珠海格力电器股份有限公司 Detection method and detection system for heat pump dryer
CN109612015A (en) * 2018-12-24 2019-04-12 珠海格力电器股份有限公司 Control protection method for air conditioner and air conditioner
CN109612015B (en) * 2018-12-24 2019-12-10 珠海格力电器股份有限公司 Control protection method for air conditioner and air conditioner
CN109945394B (en) * 2019-01-22 2020-04-07 中山大学 Accurate diagnosis method for small temperature difference syndrome of chilled water system of central air conditioner
CN109945394A (en) * 2019-01-22 2019-06-28 中山大学 A kind of small temperature difference syndrome Precise Diagnosis method of freezing water system of central air conditioner
CN109900130A (en) * 2019-04-17 2019-06-18 山西宏明空调科技有限公司 A kind of anti-white cigarette type cross flow cooling tower
CN110207321A (en) * 2019-06-10 2019-09-06 珠海格力电器股份有限公司 Self-adjusting fault processing method and equipment and air conditioning system
CN110207321B (en) * 2019-06-10 2020-10-02 珠海格力电器股份有限公司 Self-adjusting fault processing method and equipment and air conditioning system
CN110715814A (en) * 2019-09-29 2020-01-21 江苏华复保利环保科技有限公司 Online comprehensive diagnosis system and method for open cooling tower
CN110703016A (en) * 2019-09-29 2020-01-17 江苏华复保利环保科技有限公司 Online comprehensive diagnosis integrated device for open cooling tower
CN110715814B (en) * 2019-09-29 2021-05-11 江苏华复保利环保科技有限公司 Online comprehensive diagnosis system and method for open cooling tower
CN112710059A (en) * 2020-12-28 2021-04-27 椭圆方程（深圳）信息技术有限公司 Automatic fault diagnosis method and device for building air conditioning cabinet
CN113154897A (en) * 2021-04-13 2021-07-23 上海电气斯必克工程技术有限公司 Long-range fortune dimension system of thermal power plant air cooling system
CN114322634A (en) * 2021-12-29 2022-04-12 博锐尚格科技股份有限公司 Data screening method and device for refrigerating system strategy model
CN115013734A (en) * 2022-06-17 2022-09-06 邯郸钢铁集团有限责任公司 Finishing mill working roll cooling water regulating valve opening feedback control method
CN115544736A (en) * 2022-09-15 2022-12-30 宏明科技集团有限公司 Cooling tower control system and method
CN115544736B (en) * 2022-09-15 2023-08-15 宏明科技集团有限公司 Cooling tower control system and method

Similar Documents

Publication Publication Date Title
CN107676923A (en) A kind of Air conditioning System for Hospitals cooling tower failure automatic judging method and device
CN105910247B (en) The monitoring and diagnosis of the HVAC of house solution
CN107449102A (en) Hospital's fan coil self-diagnosis of trouble method, apparatus and readable storage medium storing program for executing
CN107975907A (en) Hospital's pre-cooled air-conditioning box autodiagnosis method, apparatus, computer installation and storage medium
CN104748327B (en) A kind of public building air-conditioning efficiency diagnostic system based on power consumption data
CN104048390B (en) Method for diagnosing energy efficiency of air-cooled heat-pump central air-conditioning unit
CN109028481A (en) Unattended machine room control system and method of air conditioning system
CN104765354B (en) A kind of method for diagnosing faults, the apparatus and system of sensor and executive component
KR102364621B1 (en) Air-conditioner System and Method thereof
CN107575996A (en) Hospital's air conditioner in machine room unit self checking method and device
CN106288568B (en) High-voltage protection control method and device for central air-conditioning compressor
JP2008232531A (en) Remote performance monitoring device and method
CN109631237B (en) Data center group control system and method
CN107143981B (en) A kind of controlling system of central air conditioner and method
CN103383130A (en) Intelligent fresh air and air conditioning linkage control management method
CN107576519A (en) A kind of hospital's variable air volume system automatic testing method and device
US20220344932A1 (en) Apparatus and method for parameter comprehensive monitoring and troubleshooting of power transformation and distribution
CN104950685A (en) Information processing method and device, information processing method, household electrical appliance and system
CN107726573A (en) A kind of central air conditioning system
WO2022222812A1 (en) Device and method for comprehensive monitoring and troubleshooting of power transformation and distribution parameters
CN107621059A (en) Hospital's combined type wind cabinet automatic fault diagnosis devices, systems, and methods
CN207196828U (en) Hospital's fan coil system fault monitoring device and system
CN106123235A (en) A kind of central air-conditioning energy management control system
CN109443812A (en) Hvac equipment fault diagnosis method and system based on view data
CN112202241A (en) Distribution network equipment state monitoring and fault judgment system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180209