CN107621059A - Hospital's combined type wind cabinet automatic fault diagnosis devices, systems, and methods - Google Patents
Hospital's combined type wind cabinet automatic fault diagnosis devices, systems, and methods Download PDFInfo
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- CN107621059A CN107621059A CN201710826173.2A CN201710826173A CN107621059A CN 107621059 A CN107621059 A CN 107621059A CN 201710826173 A CN201710826173 A CN 201710826173A CN 107621059 A CN107621059 A CN 107621059A
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Abstract
The present invention relates to hospital's combined type wind cabinet automatic fault diagnosis devices, systems, and methods, the device includes：Controller and the sensor group being connected with controller, freezing valve, electronic precipitator, roughing efficiency air filter and blower fan, blower fan are used to monitor the operation information of itself in real time, export the 3rd feedback signal；Controller receives the environmental information of sensor group output, the first feedback signal of freezing valve output, the second feedback signal of electronic precipitator output and the 3rd feedback signal of blower fan output, the rate of change of computing environment information, and when judging that environmental information, the rate of change of environmental information, the first feedback signal, the second feedback signal and the 3rd feedback signal meet preparatory condition, produce fault alarm control signal triggering fault alarm and export corresponding fault message.Diagnosed automatically present invention can be implemented in line and trigger alarm, be safe and reliable.
Description
Technical field
It is automatic more specifically to a kind of hospital's combined type wind cabinet failure the present invention relates to hospital's air-conditioning technical field
Diagnostic device, system and method.
Background technology
In hospital's air-conditioning technical field, particularly hospital clinic and combined type wind cabinet (AHU, the Air of inpatient department
Handling Unit) whether normal operation, its regulate and control area of space temperature whether can meet correlation function requirement in regular maintenance
During be particularly important.
It is typically that could find combined type wind cabinet when having onsite user's complaint if traditional combined type wind cabinet breaks down
Break down, and then maintenance and management could be carried out to combined type wind cabinet.Either combined type wind cabinet is carried out in administrative staff
Regular visit could find that combined type wind cabinet breaks down, and then could carry out on-site maintenance and management to combined type wind cabinet.Cause
This, this maintenance management pattern not only lacks efficiency that is ageing, but also leveraging air-conditioning, and due to that can not send out in time
Existing combined type wind cabinet breaks down, and then the area of space that result in air-conditioning system service can not obtain good air ambient,
The comfortableness of air-conditioning is reduced, and may also result in energy waste.
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 combined type
Wind cabinet automatic fault diagnosis devices, systems, and methods.
The technical solution adopted for the present invention to solve the technical problems is：It is automatic to construct a kind of hospital's combined type wind cabinet failure
Diagnostic device, it is characterised in that the sensor group that is connected including controller and with the controller, freezing valve, electronics remove
Dirt device, roughing efficiency air filter and blower fan,
The sensor group is used for the environmental information for gathering combined type wind cabinet in real time；
The freezing valve is used to monitor the operation information of itself in real time, exports the first feedback signal；
The electronic precipitator is used to monitor the operation information of itself in real time, exports the second feedback signal；
The blower fan is used to monitor the operation information of itself in real time, exports the 3rd feedback signal；
The controller receives environmental information, the first feedback signal, the second feedback signal and the 3rd feedback signal,
The rate of change of the environmental information is calculated, and judges the environmental information, the rate of change of environmental information, the first feedback signal,
When two feedback signals and the 3rd feedback signal meet preparatory condition, generation fault alarm control signal triggering fault alarm is simultaneously defeated
Go out corresponding fault message.
Preferably, the sensor group include air temperature sensor, relative humidity sensor, PM10 concentration sensors,
Pressure sensor and cooling-water temperature sensor.
Preferably, the environmental information include indoor and outdoor air temperature, indoor and outdoor relative temperature, roughing efficiency air filter pressure difference and
Chilled water supply and return water temperature and wind pushing temperature.
Preferably, second feedback signal and the 3rd feedback signal are data signal.
The present invention also provides a kind of hospital's combined type wind cabinet automatic fault diagnosis system, including above-mentioned hospital's combined type wind cabinet
Automatic fault diagnosis device and management terminal；
The management terminal is connected with the controller, the fault message that the controller is sent is received, to the failure
Information is shown, and produces fault alarm based on the fault message.
The present invention also provides a kind of hospital's combined type wind cabinet automatic fault diagnosis method, applied to above-mentioned hospital's combined type
Wind cabinet automatic fault diagnosis device, comprises the following steps：
S1：Sensor group gathers the environmental information of combined type wind cabinet in real time；The environmental information includes indoor and outdoor air temperature
Degree, indoor and outdoor relative humidity, roughing efficiency air filter pressure difference and chilled water supply and return water temperature and wind pushing temperature；
S2, freezing valve, electronic precipitator and blower fan monitor the operation information of itself in real time, and output first is anti-respectively
Feedback signal, the second feedback signal and the 3rd feedback signal；
S3, controller from the sensor group, freezing valve, electronic precipitator and blower fan obtain the environmental information,
First feedback signal, the second feedback signal and the 3rd feedback signal, calculate the rate of change of the environmental information, and judge the ring
Environment information, the rate of change of environmental information, the first feedback signal, the second feedback signal and the 3rd feedback signal meet preparatory condition
When, produce fault alarm control signal triggering fault alarm and export corresponding fault message；
The rate of change of the environmental information includes：Indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, just
Imitate filter differential pressure rate of change, PM10 change rate of concentration, chilled water supply and return water temperature rate of change.
The fault alarm control signal includes power failure alarm control signal, network failure alarm control signal, wind
Machine fault alarm control signal, freezing valve fault alarm control signal, chilled water send water fault alarm control signal, just imitated
Filter fault alarm control signal and electronic precipitator fault alarm control signal.
Preferably, it is described to judge the environmental information, the rate of change of environmental information, the first feedback letter in the step S3
Number, the second feedback signal and the 3rd feedback signal whether meet preparatory condition, if so, producing the triggering of fault alarm control signal
Fault alarm simultaneously exports corresponding fault message, including：
Judge the indoor and outdoor air temperature, indoor and outdoor relative humidity, roughing efficiency air filter pressure difference, PM10 concentration and freezing
Whether water supply and return water temperature is zero, and whether first feedback signal and the 3rd feedback signal are zero, if so, producing electric power
The triggering power failure alarm of fault alarm control signal；Or
Judge the indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, the change of roughing efficiency air filter pressure difference
Whether rate, PM10 change rate of concentration and chilled water supply and return water temperature rate of change are zero, if so, producing network failure alarm control
Signal triggering network failure alarm processed；Or
Judge whether the indoor and outdoor air rate of temperature change and indoor and outdoor relative humidity variations rate are equal or described
Whether three feedback signals are abnormal, if so, producing the triggering fan trouble alarm of fan trouble alarm control signal；Or
Judge whether the wind pushing temperature is more than preset temperature higher limit in preset time period, or judge the air-supply
Whether temperature is less than preset temperature lower limit in preset time period, if so, it is cold to produce the failure control signal triggering of freezing valve
Freeze failsafe valve alarm.
Preferably, it is described to judge the environmental information, the rate of change of environmental information, the first feedback letter in the step S3
Number, the second feedback signal and the 3rd feedback signal whether meet preparatory condition, if so, producing the triggering of fault alarm control signal
Fault alarm simultaneously exports corresponding fault message, further comprises：
Judge whether the supply water temperature of the chilled water is more than default water temperature higher limit or described in preset time period
Whether the return water temperature of chilled water is less than default return water temperature lower limit in preset time period, if so, producing chilled water send water
Fault alarm control signal triggering chilled water send water fault alarm；Or
Judge whether the roughing efficiency air filter pressure difference is more than setting higher limit, if so, producing roughing efficiency air filter fault alarm
Control signal triggers roughing efficiency air filter fault alarm；Or
Judge whether the PM10 change rate of concentration before and after the electronic precipitator is equal or second feedback signal is
No exception, if so, producing electronic precipitator fault alarm control signal triggering electronic precipitator fault alarm.
Preferably, methods described also includes：
Controller sends the fault message to management terminal, and the fault message is carried out by the management terminal
Display and management, and fault alarm is produced based on the fault message.
Implement hospital's combined type wind cabinet automatic fault diagnosis device of the present invention, have the advantages that：The present invention is logical
The sensor group crossed installed in combined type wind cabinet is gathered in real time to the environmental information that combined type wind cabinet is run, and by holding
The feedback that row part is carried out to the running status of itself, it can be achieved to carry out failure anticipation to combined type wind cabinet and trigger failure report
It is alert, and then can in time grasp and solve combined type wind cabinet failure, ensure that combined type wind cabinet is safe and reliable and efficient operation, most
The purpose for timely responding to user's air-conditioning thermal comfort demand and energy-conservation is realized eventually, while can also carry out data with remote administration terminal
Communication, realizes remote monitoring.
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 logic diagram of hospital's combined type wind cabinet automatic fault diagnosis device provided by the invention；
Fig. 2 is a kind of logic diagram of hospital's combined type wind cabinet automatic fault diagnosis system provided by the invention；
Fig. 3 is that a kind of flow of hospital's combined type wind cabinet automatic fault diagnosis method first embodiment provided by the invention is shown
It is intended to；
Fig. 4 is that a kind of flow of hospital's combined type wind cabinet automatic fault diagnosis method second embodiment provided by the invention is shown
It is intended to.
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 clinic and inpatient department's combined type wind cabinet failure
The method of remote auto diagnosis.Lack side that is ageing and sacrificing user's thermal comfort compared to conventional failure guarantee and inspection
Method, the present invention is by each sensor and execution unit feedback signal installed in combined type wind cabinet, and background application software is (such as
IBMS, Intelligent Building Management System) distant early warning and breakdown judge are carried out, by existing
Combined type wind cabinet electronic dust-removing device is front and rear to install PM10 granule density sensors additional, and by combined type wind cabinet blower fan start and stop, it is cold
Freeze water valve switch/opening amount signal and IBMS software platforms are fed back to by wire/radio network, you can effective examination failure is pre-
Alert or fault alarm combined type wind cabinet, finds failure cause in time, helps property management personnel's timely processing problem, guarantee group
Box-like wind cabinet system reliable and energy-saving operation and user's thermal comfort.
Specifically, as shown in figure 1, Fig. 1 is a kind of hospital's combined type wind cabinet automatic fault diagnosis device provided by the invention
Logic diagram, in this embodiment, hospital's combined type wind cabinet automatic fault diagnosis device of the invention include：Controller and with
Sensor group, freezing valve, electronic precipitator, roughing efficiency air filter and the blower fan of controller connection.
In this embodiment, sensor group for example may include air temperature sensor, relative humidity sensor, PM10 concentration
Sensor, pressure sensor and cooling-water temperature sensor.
Specifically, air temperature sensor may include room air temperature sensor, outdoor temperature sensor and air-supply
Temperature sensor, wherein, room air temperature sensor is used to gather indoor air temperature (i.e. combined type wind cabinet air-supply end in real time
The temperature of the corresponding area of space in end), and the room air temperature sensor can be arranged on the return air duct near indoor return air mouth
It is interior.Outside air temperature sensor is used for the temperature for gathering combined type wind cabinet air inlet in real time, and the outside air temperature passes
Sensor can be arranged on intake stack close to air inlet.Similarly, relative humidity sensor includes indoor and outdoor relative humidity sensor,
For gathering the relative humidity of indoor and outdoors in real time, its installation site can be same as indoor and outdoor air temperature sensor.Air-supply temperature
Degree sensor is used to gather the air themperature after combined type wind cabinet fan and surface cooler, wherein, wind pushing temperature sensor can pacify
Plug into and combined at wind cabinet mounted in air supply duct.
Pressure sensor is used to gather the pressure differential of roughing efficiency air filter in real time and by real-time data transmission to controller.
PM10 concentration sensors are arranged at electronic precipitator, for the PM10 particles before and after collection electronic precipitator in real time
Concentration and by real-time data transmission to controller.
Cooling-water temperature sensor may include water supply cooling-water temperature sensor and backwater cooling-water temperature sensor, wherein, water supply cooling-water temperature sensor is set
Put in chilled water feed pipe, for monitoring the water temperature in chilled water feed pipe in real time and by real-time data transmission to controller.
Backwater cooling-water temperature sensor is arranged in chilled water return pipe, for the real-time water temperature monitored in chilled water return pipe and data are real
When transmit to controller.
In this embodiment, valve is freezed when air-conditioning system is run, and monitors the operation information of itself in real time and based on certainly
The operation information of body exports the first feedback signal to controller.It is to be appreciated that the first feedback signal includes opening for freezing valve
OFF signal or opening amount signal.
In this embodiment, electronic precipitator monitors the operation information of itself, and be based in real time when air-conditioning system is run
The operation information of itself exports the second feedback signal to controller.
In this embodiment, blower fan is when air-conditioning system is run, and monitors the operation information of itself in real time, and based on itself
Operation information exports the 3rd feedback signal to controller.Preferably, the blower fan of the present embodiment can be single blower fan or two fans.
In this embodiment, controller receives environmental information, the first feedback signal, the second feedback signal and the 3rd feedback
Signal, the rate of change of computing environment information, and judge the environmental information, rate of change of environmental information, the first feedback signal, second anti-
When feedback signal and the 3rd feedback signal meet preparatory condition, produce fault alarm control signal triggering fault alarm and export phase
The fault message answered.
Preferably, the second feedback signal and the 3rd feedback signal are data signal, for example, can be 0 and 1 feedback letter
Number.
Specifically, the environmental information that controller real-time reception sensor group is sent, i.e. real-time reception indoor and outdoor air respectively
Indoor and outdoor air temperature (including indoor air temperature and outside air temperature), the indoor and outdoor relative humidity of temperature sensor transmission
It is indoor and outdoor relative humidity (including indoor relative humidity and outside relative humidity) that sensor is sent, roughing efficiency air filter pressure difference, cold
Freeze water supplies water back temperature sensor transmission chilled water supply and return water temperature (including supply water temperature and return water temperature) and blow warm
Spend the wind pushing temperature that sensor is sent.Measured in real time at different moments it is to be appreciated that aforesaid environmental information is sensor group
Data, therefore, controller are first cached these data groups, follow-up after above-mentioned environmental information is received at different moments
Data handling procedure in extract related data again.
In this embodiment, after controller receives the environmental information of sensor group, also need to calculate the change of environmental information
Rate, i.e., indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, the change of roughing efficiency air filter pressure difference are calculated respectively
Rate, PM10 change rate of concentration, chilled water supply and return water temperature rate of change.Wherein, the computational methods of the rate of change of environmental information are：Will
The data at adjacent time moment make difference again divided by time interval.In other words, environmental information and the last moment at current time be can use
Environmental information make difference again divided by time interval.For example, by taking primarily efficient filter pressure difference as an example, it is assumed that primarily efficient filter at a time
Pressure difference is Pt, the primarily efficient filter pressure difference of last moment is Pt-1, the time interval of collection can be set to 2min, then primarily efficient filter pressure difference
Rate of change be：(Pt-Pt-1)/2.Similarly, the rate of change of other ambient parameters also can carry out calculating acquisition by a little modes.
It should be noted that to receive environmental information, the first feedback signal, the second feedback signal and the 3rd anti-for controller
Feedback signal, and after the rate of change of computing environment information, judge environmental information, the rate of change of environmental information, the first feedback signal,
When two feedback signals and the 3rd feedback signal meet preparatory condition, it is defeated to produce fault alarm control signal triggering fault alarm pass
Go out corresponding fault message.Preferably, fault alarm control signal includes：Power failure alarm control signal, network failure report
Alert control signal, fan trouble alarm control signal, freezing valve fault alarm control signal, chilled water send water fault alarm control
Signal, roughing efficiency air filter fault alarm control signal and electronic precipitator fault alarm control signal processed.
Wherein, environmental information, the rate of change of environmental information, the first feedback signal, the second feedback signal and the 3rd are judged
When feedback signal meets preparatory condition, produce fault alarm control signal triggering fault alarm and close the corresponding failure information package of output
Include：
Judge that indoor and outdoor air temperature, indoor and outdoor relative humidity, roughing efficiency air filter pressure difference, PM10 concentration and chilled water supply
Whether return water temperature is zero, and whether the first feedback signal and the 3rd feedback signal are zero, if so, producing power failure alarm
Control signal triggering power failure alarm.
Or judge indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, the change of roughing efficiency air filter pressure difference
Whether rate, PM10 change rate of concentration and chilled water supply and return water temperature rate of change are zero, if so, producing network failure alarm control
Signal triggering network failure alarm processed.
Either judge whether indoor and outdoor air rate of temperature change and indoor and outdoor relative humidity variations rate are equal or the 3rd is anti-
Whether feedback signal is abnormal, if so, producing the triggering fan trouble alarm of fan trouble alarm control signal.
Either judge whether wind pushing temperature is more than preset temperature higher limit in preset time period or judges wind pushing temperature
Whether it is less than preset temperature lower limit in preset time period, if so, producing freezing valve failure control signal triggering freezing valve
Door fault alarm.
Either judge whether the supply water temperature of chilled water is more than default water temperature higher limit or freezing in preset time period
Whether the return water temperature of water is less than default return water temperature lower limit in preset time period, if so, producing chilled water send water failure
Alarm control signal triggering chilled water send water fault alarm.
Or judge whether roughing efficiency air filter pressure difference is more than setting higher limit, if so, producing roughing efficiency air filter fault alarm
Control signal triggers roughing efficiency air filter fault alarm.
Either judge whether PM10 change rate of concentration before and after electronic precipitator is equal or whether the second feedback signal is different
Often, if so, producing electronic precipitator fault alarm control signal triggering electronic precipitator fault alarm.
It is appreciated that above-mentioned judgement can be performed by corresponding judge module in controller.
As shown in Fig. 2 the present invention also provides a kind of hospital's combined type wind cabinet automatic fault diagnosis system, including above-mentioned hospital
Combined type wind cabinet automatic fault diagnosis device and management terminal；Management terminal is connected with controller, receives what controller was sent
Fault message, fault message is shown, and fault alarm is produced based on fault message.It is to be appreciated that pass through controller
Being communicated with the data of management terminal so that back-stage management personnel can easily and fast monitor the operation conditions of combined type wind cabinet in time,
When combined type wind cabinet breaks down, troubleshooting and maintenance are carried out to combined type wind cabinet in time.
As shown in figure 3, the present invention also provides a kind of hospital's combined type wind cabinet automatic fault diagnosis method, this method can be applied
In above-mentioned hospital's combined type wind cabinet automatic fault diagnosis device, following steps are specifically included：
S1：Sensor group gathers the environmental information of combined type wind cabinet in real time；Environmental information includes indoor and outdoor air temperature, room
Inside and outside relative humidity, roughing efficiency air filter pressure difference and chilled water supply and return water temperature and wind pushing temperature.
Specifically, in step sl, environmental information is gathered more for the period at interval of a setting by sensor group
Group data, and by sensor group real-time Transmission to controller.Wherein, in this embodiment, the period of setting can be 1 point
Clock, 2 minutes, 5 minutes or 15 minutes etc., the present invention is not especially limited.
In this embodiment, sensor group for example may include air temperature sensor, relative humidity sensor, PM10 concentration
Sensor, pressure sensor and cooling-water temperature sensor.
Specifically, air temperature sensor may include room air temperature sensor, outdoor temperature sensor and air-supply
Temperature sensor, wherein, room air temperature sensor is used to gather indoor air temperature (i.e. combined type wind cabinet air-supply end in real time
The temperature of the corresponding area of space in end), and the room air temperature sensor can be arranged on the return air duct near indoor return air mouth
It is interior.Outside air temperature sensor is used for the temperature for gathering combined type wind cabinet air inlet in real time, and the outside air temperature passes
Sensor can be arranged on intake stack close to air inlet.Similarly, relative humidity sensor includes indoor and outdoor relative humidity sensor,
For gathering the relative humidity of indoor and outdoors in real time, its installation site can be same as indoor and outdoor air temperature sensor.Air-supply temperature
Degree sensor is used to gather the air themperature after combined type wind cabinet fan and surface cooler, wherein, wind pushing temperature sensor can pacify
Plug into and combined at wind cabinet mounted in air supply duct.
Pressure sensor is used to gather the pressure differential of roughing efficiency air filter in real time and by real-time data transmission to controller.
PM10 concentration sensors are arranged at electronic precipitator, for the PM10 particles before and after collection electronic precipitator in real time
Concentration and by real-time data transmission to controller.
Cooling-water temperature sensor may include water supply cooling-water temperature sensor and backwater cooling-water temperature sensor, wherein, water supply cooling-water temperature sensor is set
Put in chilled water feed pipe, for monitoring the water temperature in chilled water feed pipe in real time and by real-time data transmission to controller.
Backwater cooling-water temperature sensor is arranged in chilled water return pipe, for the real-time water temperature monitored in chilled water return pipe and data are real
When transmit to controller.
S2, freezing valve, electronic precipitator and blower fan monitor the operation information of itself in real time, and output first is anti-respectively
Feedback signal, the second feedback signal and the 3rd feedback signal.
In this step, the first feedback signal can monitor the fortune of itself in real time by freezing valve when air-conditioning system is run
Row information simultaneously exports the first feedback signal to controller based on the operation information of itself.It is to be appreciated that the first feedback signal bag
Include the switching signal or opening amount signal of freezing valve.
Electronic precipitator monitors the operation information of itself, and believe based on the operation of itself in real time when air-conditioning system is run
Breath exports the second feedback signal to controller.
Blower fan monitors the operation information of itself, and export based on the operation information of itself in real time when air-conditioning system is run
3rd feedback signal is to controller.Preferably, the blower fan of the present embodiment can be single blower fan or two fans.
Preferably, the second feedback signal and the 3rd feedback signal are data signal, for example, can be 0 and 1 feedback letter
Number.
S3, controller obtain environmental information, the first feedback from sensor group, freezing valve, electronic precipitator and blower fan
Signal, the second feedback signal and the 3rd feedback signal, the rate of change of computing environment information, and judge environmental information, environmental information
Rate of change, the first feedback signal, the second feedback signal and the 3rd feedback signal when meeting preparatory condition, produce fault alarm
Control signal triggers fault alarm and exports corresponding fault message.
The rate of change of environmental information includes：Indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, just imitated
Filter pressure difference rate of change, PM10 change rate of concentration, chilled water supply and return water temperature rate of change.
Fault alarm control signal includes power failure alarm control signal, network failure alarm control signal, blower fan event
Barrier alarm control signal, freezing valve fault alarm control signal, chilled water send water fault alarm control signal, roughing efficiency air filter
Fault alarm control signal and electronic precipitator fault alarm control signal.
Preferably, in step S3, environmental information, the rate of change of environmental information, the first feedback signal, the second feedback letter are judged
Number and the 3rd feedback signal whether meet preparatory condition, if so, producing fault alarm control signal triggering fault alarm and defeated
Go out corresponding fault message, including：
Judge that indoor and outdoor air temperature, indoor and outdoor relative humidity, roughing efficiency air filter pressure difference, PM10 concentration and chilled water supply
Whether return water temperature is zero, and whether the first feedback signal and the 3rd feedback signal are zero, if so, producing power failure alarm
Control signal triggering power failure alarm；Or
Judge indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, roughing efficiency air filter pressure difference rate of change,
Whether PM10 change rate of concentration and chilled water supply and return water temperature rate of change are zero, if so, producing network failure controlling alarm
Signal triggering network failure alarm；Or
Judge whether indoor and outdoor air rate of temperature change and indoor and outdoor relative humidity variations rate equal or the 3rd feedback letter
It is number whether abnormal, if so, producing the triggering fan trouble alarm of fan trouble alarm control signal.It is to be appreciated that in the judgement
In step, the 3rd feedback signal of blower fan output is that the 3rd feedback signal is non-zero non-1 data signal extremely, now, can be sentenced
Disconnected blower fan breaks down.
Either judge whether wind pushing temperature is more than preset temperature higher limit in preset time period or judges wind pushing temperature
Whether it is less than preset temperature lower limit in preset time period, if so, producing freezing valve failure control signal triggering freezing valve
Door fault alarm.In this step, it is assumed that preset temperature higher limit is 20 degrees Celsius, and preset temperature lower limit is 12 degrees Celsius,
Preset time period is 5 minutes.Therefore, if in default 5 minutes section, the wind pushing temperature received by controller is all higher than
20 degrees Celsius, then it can determine whether that freezing valve breaks down；Or more than 5 minutes after, the wind pushing temperature received by controller is still
It is lasting to rise, then it can determine whether that freezing valve breaks down.Or if in default 5 minutes section, received by controller
Wind pushing temperature be respectively less than 12 degrees Celsius, then can determine whether freeze valve break down；Or more than 5 minutes after, controller is connect
The wind pushing temperature received still continuous decrease, then it can determine whether that freezing valve breaks down.
Preferably, in step S3, environmental information, the rate of change of environmental information, the first feedback signal, the second feedback letter are judged
Number and the 3rd feedback signal whether meet preparatory condition, if so, producing fault alarm control signal triggering fault alarm and defeated
Go out corresponding fault message, further comprise：
Judge whether the supply water temperature of chilled water is more than default water temperature higher limit or chilled water in preset time period
Whether return water temperature is less than default return water temperature lower limit in preset time period, if so, producing chilled water send water fault alarm
Control signal triggering chilled water send water fault alarm.For example, it is assumed that it is 15 Celsius that chilled water supply water temperature, which presets water temperature higher limit,
Degree, it is 20 degrees Celsius to preset return water temperature lower limit, and preset time period is 5 minutes.Therefore, it is cold in preset time period 5 minutes
Freeze water supply water temperature be all higher than 15 degrees Celsius or more than 5 minutes after chilled water supply water temperature still persistently rise, then can determine whether cold
Freezing water send water to break down.Or in preset time period 5 minutes, chilled water return water temperature is respectively less than 20 degrees Celsius or exceeded
Chilled water return water temperature still continuous decrease after 5 minutes, then it can determine whether that chilled water send water to break down.
Or judge whether roughing efficiency air filter pressure difference is more than setting higher limit, if so, producing roughing efficiency air filter fault alarm
Control signal triggers roughing efficiency air filter fault alarm.
Either judge whether PM10 change rate of concentration before and after electronic precipitator is equal or whether the second feedback signal is different
Often (i.e. non-zero non-1 signal), if so, producing electronic precipitator fault alarm control signal triggering electronic precipitator fault alarm.
As shown in figure 4, it is a kind of stream of hospital's combined type wind cabinet automatic diagnosis method second embodiment provided by the invention
Journey schematic diagram.Hospital's combined type wind cabinet automatic diagnosis method of the embodiment it is different from the automatic diagnosis method shown in Fig. 3 it
Be in, controller also sends fault message to management terminal, and fault message is shown and managed by management terminal,
And fault alarm is produced based on fault message.
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)
- A kind of 1. hospital's combined type wind cabinet automatic fault diagnosis device, it is characterised in that including controller and with the control Sensor group, freezing valve, electronic precipitator, roughing efficiency air filter and the blower fan of device connection,The sensor group is used for the environmental information for gathering combined type wind cabinet in real time；The freezing valve is used to monitor the operation information of itself in real time, exports the first feedback signal；The electronic precipitator is used to monitor the operation information of itself in real time, exports the second feedback signal；The blower fan is used to monitor the operation information of itself in real time, exports the 3rd feedback signal；The controller receives environmental information, the first feedback signal, the second feedback signal and the 3rd feedback signal, calculates The rate of change of the environmental information, and judge the environmental information, rate of change of environmental information, the first feedback signal, second anti- When feedback signal and the 3rd feedback signal meet preparatory condition, produce fault alarm control signal triggering fault alarm and export phase The fault message answered.
- 2. hospital's combined type wind cabinet automatic fault diagnosis device according to claim 1, it is characterised in that the sensor Group includes air temperature sensor, relative humidity sensor, PM10 concentration sensors, pressure sensor and cooling-water temperature sensor.
- 3. hospital's combined type wind cabinet automatic fault diagnosis device according to claim 2, it is characterised in that the environment letter Breath includes indoor and outdoor air temperature, indoor and outdoor relative temperature, roughing efficiency air filter pressure difference and chilled water supply and return water temperature and air-supply Temperature.
- 4. hospital's combined type wind cabinet automatic fault diagnosis device according to claim 1, it is characterised in that described second is anti- Feedback signal and the 3rd feedback signal are data signal.
- 5. a kind of hospital's combined type wind cabinet automatic fault diagnosis system, it is characterised in that including any one of Claims 1-4 institute State hospital's combined type wind cabinet automatic fault diagnosis device and management terminal；The management terminal is connected with the controller, the fault message that the controller is sent is received, to the fault message It has been shown that, and fault alarm is produced based on the fault message.
- A kind of 6. hospital's combined type wind cabinet automatic fault diagnosis method, applied to hospital's group described in any one of Claims 1-4 Box-like wind cabinet automatic fault diagnosis device, it is characterised in that comprise the following steps：S1：Sensor group gathers the environmental information of combined type wind cabinet in real time；The environmental information includes indoor and outdoor air temperature, room Inside and outside relative humidity, roughing efficiency air filter pressure difference and chilled water supply and return water temperature and wind pushing temperature；S2, freezing valve, electronic precipitator and blower fan monitor the operation information of itself in real time, and export the first feedback letter respectively Number, the second feedback signal and the 3rd feedback signal；S3, controller obtain the environmental information, first from the sensor group, freezing valve, electronic precipitator and blower fan Feedback signal, the second feedback signal and the 3rd feedback signal, calculate the rate of change of the environmental information, and judge the environment letter When breath, the rate of change of environmental information, the first feedback signal, the second feedback signal and the 3rd feedback signal meet preparatory condition, Produce fault alarm control signal triggering fault alarm and export corresponding fault message；The rate of change of the environmental information includes：Indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, just imitated Filter pressure difference rate of change, PM10 change rate of concentration, chilled water supply and return water temperature rate of change.
- 7. hospital's combined type wind cabinet automatic fault diagnosis method according to claim 6, it is characterised in that the failure report Alert control signal include power failure alarm control signal, network failure alarm control signal, fan trouble alarm control signal, Freezing valve fault alarm control signal, chilled water send water fault alarm control signal, roughing efficiency air filter fault alarm control letter Number and electronic precipitator fault alarm control signal.
- 8. hospital's combined type wind cabinet automatic fault diagnosis method according to claim 7, it is characterised in that the step S3 In, it is described to judge that the environmental information, the rate of change of environmental information, the first feedback signal, the second feedback signal and the 3rd are anti- Whether feedback signal meets preparatory condition, if so, producing fault alarm control signal triggering fault alarm and exporting corresponding failure Information, including：Judge that the indoor and outdoor air temperature, indoor and outdoor relative humidity, roughing efficiency air filter pressure difference, PM10 concentration and chilled water supply Whether return water temperature is zero, and whether first feedback signal and the 3rd feedback signal are zero, if so, producing power failure Alarm control signal triggering power failure alarm；OrJudge the indoor and outdoor air rate of temperature change, indoor and outdoor relative humidity variations rate, roughing efficiency air filter pressure difference rate of change, Whether PM10 change rate of concentration and chilled water supply and return water temperature rate of change are zero, if so, producing network failure controlling alarm Signal triggering network failure alarm；OrJudge whether the indoor and outdoor air rate of temperature change and indoor and outdoor relative humidity variations rate are equal or described 3rd anti- Whether feedback signal is abnormal, if so, producing the triggering fan trouble alarm of fan trouble alarm control signal；OrJudge whether the wind pushing temperature is more than preset temperature higher limit in preset time period, or judge the wind pushing temperature Whether it is less than preset temperature lower limit in preset time period, if so, producing freezing valve failure control signal triggering freezing valve Door fault alarm.
- 9. hospital's combined type wind cabinet automatic fault diagnosis method according to claim 7, it is characterised in that the step S3 In, it is described to judge that the environmental information, the rate of change of environmental information, the first feedback signal, the second feedback signal and the 3rd are anti- Whether feedback signal meets preparatory condition, if so, producing fault alarm control signal triggering fault alarm and exporting corresponding failure Information, further comprise：Judge whether the supply water temperature of the chilled water is more than default water temperature higher limit or the freezing in preset time period Whether the return water temperature of water is less than default return water temperature lower limit in preset time period, if so, producing chilled water send water failure Alarm control signal triggering chilled water send water fault alarm；OrJudge whether the roughing efficiency air filter pressure difference is more than setting higher limit, if so, producing the control of roughing efficiency air filter fault alarm Signal triggers roughing efficiency air filter fault alarm；OrJudge whether PM10 change rate of concentration before and after the electronic precipitator is equal or whether second feedback signal is different Often, if so, producing electronic precipitator fault alarm control signal triggering electronic precipitator fault alarm.
- 10. hospital's combined type wind cabinet automatic fault diagnosis method according to claim any one of 6-9, it is characterised in that Methods described also includes：Controller sends the fault message to management terminal, and the fault message is shown by the management terminal And management, and fault alarm is produced based on the fault message.
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