The content of the invention
The present invention provides a kind of frequency converter water-cooling control system, is easy to diagnosis and the failure row of whole systemRemove, and cost can be greatly reduced.
The technical scheme is as follows：
The embodiments of the invention provide a kind of frequency converter water-cooling control system, it includes water cooling unit, changeFrequency device controller, display device, the water cooling unit are connected with the frequency converter controller, are used forThe status signal of real-time detector part, and the status signal of the device of detection is supplied to the frequency converterController, and the control command that the frequency converter controller is sent is received, according to the control command controlThe flow and flow velocity of cooling water processed, to meet every temperature requirement of device work；The frequency converter controlDevice processed, is connected with the water cooling unit, the display device, for being provided according to the water cooling unitThe status signal of device judge whether water cooling unit device work normal, and judging device workFault alarm order is sent when making abnormal to the display device, is obtained always according to the status signal of deviceTo dew-point temperature, and water cooling unit in-cabinet temperature is judged whether in dew-point temperature threshold range, ifIn dew-point temperature threshold range, then send control command to the water cooling unit to control the water-cooled listThe flow and flow velocity of first cooling water diminish；The display device, for according to the frequency converter controllerThe fault alarm order of transmission is alarmed.
In preferred embodiments of the present invention, the status signal of the device includes water inlet pressure, enteredMouth of a river temperature, delivery port pressure, outlet temperature, water pump state, valve state, in-cabinet temperature,At least one in cabinet in humidity.
In preferred embodiments of the present invention, the water cooling unit includes water inlet pressure sensor, enteredIntake temperature sensor, delivery port pressure sensor, outlet temperature sensor, valve, water pump,Radiator, valve state detector, water pump state detector, Temperature and Humidity device in cabinet；Wherein,The water inlet pressure sensor is used to detect water inlet pressure in real time；The water inlet temperature sensorFor detecting water inlet temperature in real time；The delivery port pressure sensor is used to detect delivery port pressure in real timePower；The outlet temperature sensor is used to detect outlet temperature in real time；The radiator is used to dissipateSend out the heat produced by device work；The valve state detector is used to detect valve state in real time；The water pump state detector is used to detect water pump state in real time；Temperature and Humidity device is used in the cabinetTemperature and humidity in real-time detecting box.
In preferred embodiments of the present invention, the frequency converter controller is additionally operable to prestore humitureRelation table between dew-point temperature, and by the in-cabinet temperature in the status signal of device, humidity and passIt is that table is compared, obtains dew-point temperature, obtained dew-point temperature and in-cabinet temperature is compared,If in-cabinet temperature is in dew-point temperature threshold range, the control command for reducing valve opening is sent to water-cooledThe valve of unit, being reduced with the aperture of control valve makes the flow and flow velocity of cooling water diminish.
In preferred embodiments of the present invention, the frequency converter controller is additionally operable to the state letter of deviceWater inlet pressure in number is compared with the first pressure value prestored, if water inlet pressure is more thanFirst pressure value, then send the high fault alarm order of water inlet pressure to the display device.
In preferred embodiments of the present invention, the frequency converter controller is additionally operable to the state letter of deviceWater inlet temperature in number is compared with the temperature value prestored, if water inlet temperature be more than it is advanceThe temperature value of storage, then send the high fault alarm order of water inlet temperature to the display device.
In preferred embodiments of the present invention, the frequency converter controller is additionally operable to the state letter of deviceWater inlet pressure in number is compared with the second pressure value prestored, if water inlet pressure is more thanSecond pressure value, then send the high fault alarm order of the pressure loss to the display device.
In preferred embodiments of the present invention, the frequency converter controller is additionally operable to the state letter of deviceWater inlet pressure in number is compared with the 3rd pressure value prestored, if water inlet pressure is more than3rd pressure value, then send the fault alarm order of pressure loss superelevation to the display device.
In preferred embodiments of the present invention, the frequency converter controller is additionally operable to judge the state of deviceWater pump state in signal, if water pump state has exception, is judged as water pump event with the presence or absence of abnormalBarrier, sends the fault alarm order of fault of water pump to the display device.
In preferred embodiments of the present invention, if the frequency converter controller is additionally operable to not receive whereinThe status signal that respective sensor or detector are sent, then be judged as that respective sensor or detector occurFailure, sends the fault alarm order of respective sensor or detector failure to the display device.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
By the status signal of water cooling unit real-time detector part, and by the status signal of the device of detectionFrequency converter controller is supplied to, and receives the control command of frequency converter controller transmission, is ordered according to controlThe flow and flow velocity of order control cooling water, to meet every temperature requirement of device work；Frequency converter controlWhether just the status signal for the device that device processed is provided according to water cooling unit judges the work of water cooling unit deviceOften, and when judging that device work is abnormal fault alarm order is sent to display device, always according to deviceWhether the status signal of part obtains dew-point temperature, and judge water cooling unit in-cabinet temperature in dew-point temperature thresholdIn the range of value, if in dew-point temperature threshold range, sending control command to water cooling unit to controlThe flow and flow velocity of water cooling unit cooling water diminish；The event that display device is sent according to frequency converter controllerBarrier alarm command is alarmed.The frequency converter water-cooling control system uses Integration Design, simple in construction,The devices such as the independent control unit in existing outside are reduced, cost is significantly reduced；Its other frequency conversionThe high reliability of device controller ensure that the validity of water-cool control, security, convenient to carry out big dataExploitation design in terms of record, environmental data record, also has on system fault diagnosis and maintenance processingHave a clear superiority.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the present invention'sTechnological means, and being practiced according to the content of specification, and in order to allow the above-mentioned of the present invention andOther purposes, feature and advantage can become apparent, below especially exemplified by preferred embodiment, and coordinate attachedFigure, is described in detail as follows.
Embodiment
Further to illustrate the present invention to reach technological means and the work(that predetermined goal of the invention is takenEffect, below in conjunction with accompanying drawing and preferred embodiment, to according to frequency converter water-cool control system proposed by the present inventionUnite its embodiment, structure, feature and effect, describe in detail as after.
For the present invention foregoing and other technology contents, feature and effect, in following cooperation with reference to figureThe preferred embodiment of formula can be clearly presented in describing in detail.By the explanation of embodiment,It is able to more deeply and tool when the technological means and effect that predetermined purpose taken can be reached to the present inventionThe understanding of body, however institute's accompanying drawings be only to provide reference and purposes of discussion, not for the present invention plusTo limit.
Fig. 1 is the main frame block diagram of frequency converter water-cooling control system provided in an embodiment of the present invention.Fig. 2It is the main frame block diagram of Fig. 1 water cooling unit.The frequency converter water-cooling control system is easy to whole systemThe diagnosis of system and failture evacuation, and cost can be greatly reduced, refer to Fig. 1 and Fig. 2, the changeFrequency device water-cooling control system includes water cooling unit 101, frequency converter controller 102, display device 103.
More specifically, water cooling unit 101, is connected with frequency converter controller 102, for real-time detectorThe status signal of part, and the status signal of the device of detection is supplied to frequency converter controller 102, and connectReceive frequency converter controller 102 send control command, according to control command control cooling water flow andFlow velocity, to meet every temperature requirement of device work.
Wherein, the device of water cooling unit 101 can include water inlet, delivery port, water pump, valve,Cabinet etc..The status signal of device can include water inlet pressure, water inlet temperature, delivery port pressure,Outlet temperature, water pump state, valve state, in-cabinet temperature, at least one in cabinet in humidity etc..Wherein, water pump state includes open and close state, and valve state includes open and close state, percent travelDeng.The control command that the frequency converter controller 102 that water cooling unit is received is sent can include pump switchControl command, Valve controlling aperture control command etc., wherein, pump switch control command can be controlledWater pump open and close, Valve controlling aperture control command can reach corresponding percentage with control valve aperture,Percentage is bigger, then the flow and flow velocity of cooling water are bigger, conversely, the then flow and flow velocity of cooling waterIt is smaller.
Preferably, as shown in Fig. 2 water cooling unit 101 can include：Water inlet pressure sensor P1,Water inlet temperature sensor T1, delivery port pressure sensor P2, outlet temperature sensor T2, valveDoor F, water pump D, radiator 201, valve state detector (not shown), the inspection of water pump stateThe device such as Temperature and Humidity device (not shown) in survey device (not shown), cabinet.Wherein, enterMouth of a river pressure sensor P1 is used to detect water inlet pressure in real time.Water inlet temperature sensor T1 is used forWater inlet temperature is detected in real time, and delivery port pressure sensor P2 is used to detect delivery port pressure in real time, gone outIntake temperature sensor T2 is used to detect outlet temperature in real time, and radiator 201 is used for delivery device workHeat produced by making, valve state detector is used to detect valve F states in real time, the inspection of water pump stateSurveying device is used to detect that Temperature and Humidity device is used to detect in-cabinet temperature in real time in water pump D-state, cabinet in real timeAnd humidity.
Frequency converter controller 102, is connected with water cooling unit 101, display device 103, for according to waterThe status signal for the device that cold unit 101 is provided judges whether the work of the device of water cooling unit 101 is normal,And fault alarm order is sent to display device 103 when judging that device work is abnormal, always according to deviceStatus signal obtain dew-point temperature, and judge the in-cabinet temperature of water cooling unit 101 whether in dew-point temperatureIn threshold range, if in dew-point temperature threshold range, sending control command to water cooling unit 101Diminished with the flow and flow velocity that control the cooling water of water cooling unit 101.Wherein, fault alarm order can be withIncluding intake pressure height, inflow temperature height, temperature sensor fault, pressure sensor failure, water pumpFailure, pressure loss height, pressure loss superelevation etc..Dew-point temperature is under fixed air pressure, in airContained vaporous water reaches saturation and condenses into the temperature being down to required for aqueous water.When temperature is less than dewPoint temperature, then occur dew condensation phenomenon, dew condensation phenomenon be vapor to the cold after, be directly changed liquidA kind of form, it is very unfavorable that dew condensation phenomenon is run to charging equipment.Dew-point temperature threshold range can be setPut and be more than a preset temperature than dew-point temperature, be greater than 3 degrees Celsius.
Preferably, frequency converter controller 102 is additionally operable to prestore between humiture and dew-point temperatureRelation table, and the in-cabinet temperature in the status signal of device, humidity and relation table are compared, obtainTo dew-point temperature, obtained dew-point temperature and in-cabinet temperature are compared, if in-cabinet temperature is in dew pointIn the range of temperature threshold, be determined as in-cabinet temperature close to dew-point temperature and send reduce valve opening controlValve of the system order to water cooling unit 101, is reduced with the aperture of control valve, for example, is decreased to presetPercentage, so that the flow and flow velocity of cooling water diminish.Table one be humiture and dew-point temperature (mostLow cooling water temperature) between relation table, wherein, table one lists limited data by way of example only,The relation table more refined can be set up according to actual needs in practice.
Relation table between the humiture of table one and dew-point temperature
Preferably, frequency converter controller 102 is additionally operable to the water inlet pressure in the status signal by deviceIt is compared, if water inlet pressure is more than first pressure value, sends out with the first pressure value that prestoresThe high fault alarm order of mouth of a river pressure is sent into display device 103.
Preferably, frequency converter controller 102 is additionally operable to the water inlet temperature in the status signal by deviceIt is compared with the temperature value that prestores, if water inlet temperature is more than the temperature value prestored,The high fault alarm order of water inlet temperature is sent to display device 103.
Preferably, frequency converter controller 102 is additionally operable to the water inlet pressure in the status signal by deviceIt is compared, if water inlet pressure is more than second pressure value, sends out with the second pressure value that prestoresPressurization pressure loses high fault alarm order to display device 103.
Preferably, frequency converter controller 102 is additionally operable to the water inlet pressure in the status signal by deviceIt is compared, if water inlet pressure is more than the 3rd pressure value, sends out with the 3rd pressure value that prestoresThe fault alarm order of pressurization pressure loss superelevation is to display device 103.Wherein, pressure loss height and pressureLoss superelevation can be as caused by the reasons such as blocking.
Preferably, frequency converter controller 102 is additionally operable to the delivery port pressure in the status signal by deviceIt is compared, if delivery port pressure is more than second pressure value, sends out with the second pressure value that prestoresPressurization pressure loses high fault alarm order to display device 103.
Preferably, frequency converter controller 102 is additionally operable to the delivery port pressure in the status signal by deviceIt is compared, if delivery port pressure is more than the 3rd pressure value, sends out with the 3rd pressure value that prestoresThe fault alarm order of pressurization pressure loss superelevation is to display device 103.
Preferably, frequency converter controller 102 is additionally operable to judge the water pump state in the status signal of deviceWith the presence or absence of exception, if water pump state has exception, it is judged as fault of water pump, sends fault of water pumpFault alarm order to display device 103.If for example water pump state includes on off state, if receivingWater pump state be not the state that opens or closes, then be judged as that water pump state is present abnormal.
Preferably, if frequency converter controller 102 is additionally operable to not receive wherein respective sensor or detectionThe status signal that device is sent, then be judged as that respective sensor or detector break down, send corresponding passThe fault alarm order that sensor or detector break down is to display device 103.
Display device 103, is connected with water cooling unit 101, frequency converter controller 102, for according to changeThe fault alarm order that frequency device controller 102 is sent is alarmed.Wherein, being alarmed for example can be withShow corresponding failure and advise being handled accordingly.
In the embodiment of the present invention, all related signals of water cooling unit 101 are all directly entered frequency converter controlHandled in device 102 processed, i.e. the control function of water cooling unit 101 is integrated into frequency converter controller 102In, therefore Signal sampling and processing is without third party, significantly reduces cost, can be furtherData record and system diagnostics function are realized, systematic difference maintenance difficulties are reduced.Display device 103It is external man-machine interaction unit, all can be by this in the regular maintenance of water cooling unit 101 or operationDevice carries out starting/shutting down test, the status information and data of water cooling unit 101 to water cooling unit 101It can all show on the apparatus, it is convenient and swift.
In summary, frequency converter water-cooling control system provided in an embodiment of the present invention is real by water cooling unitWhen detect the status signal of device, and the status signal of the device of detection is supplied to frequency converter controller,And receive frequency converter controller transmission control command, according to control command control cooling water flow andFlow velocity, to meet every temperature requirement of device work；Frequency converter controller is provided according to water cooling unitThe status signal of device judge whether the work of water cooling unit device normal, and judging that device works notFault alarm order is sent when normal to display device, dew point temperature is obtained always according to the status signal of deviceDegree, and water cooling unit in-cabinet temperature is judged whether in dew-point temperature threshold range, if in dew-point temperatureIn threshold range, then send control command to water cooling unit with control water cooling unit cooling water flow andFlow velocity diminishes；The fault alarm order that display device is sent according to frequency converter controller is alarmed.ShouldFrequency converter water-cooling control system uses Integration Design, simple in construction, reduces existing outside independentThe devices such as control unit, significantly reduce cost；The high reliability of its other frequency converter controller is protectedValidity, the security of water-cool control have been demonstrate,proved, it is convenient to carry out big data record, environmental data record sideThe exploitation design in face, also has a clear superiority on system fault diagnosis and maintenance processing.
The above, is only presently preferred embodiments of the present invention, not makees any form to the present inventionOn limitation, although the present invention is disclosed above with preferred embodiment, but is not limited to this hairIt is bright, any those skilled in the art, without departing from the scope of the present invention, when canA little change is made using the technology contents of the disclosure above or is modified to the Equivalent embodiments of equivalent variations,In every case it is that the technical spirit according to the present invention is to above example without departing from technical solution of the present invention contentAny simple modification, equivalent variations and the modification made, still fall within the scope of technical solution of the present inventionIt is interior.