CN206683870U - A kind of air cooler performance detecting system - Google Patents
A kind of air cooler performance detecting system Download PDFInfo
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- CN206683870U CN206683870U CN201720324944.3U CN201720324944U CN206683870U CN 206683870 U CN206683870 U CN 206683870U CN 201720324944 U CN201720324944 U CN 201720324944U CN 206683870 U CN206683870 U CN 206683870U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 239000000498 cooling water Substances 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 230000008676 import Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 14
- 238000012360 testing method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
A kind of air cooler performance detecting system, including air cooling system, water-cooling system, detection model and control system；Air cooling system includes the inlet, outlet pipeline connect relatively with the air intake of detection model, outlet, and centrifugal blower, control valve A, nozzle flowmeter and air heater are sequentially provided with admission line；Water-cooling system includes the water circulation system for dock composition by the import and export of water inlet pipe, the outlet pipe cooling water inlet with detection model, outlet and cooler respectively, control valve B is respectively arranged with inlet tube and outlet tube, water inlet pipe is provided with water pump and vortex-shedding meter；Control system includes sensor, data acquisition and procession module, A/D modular converters, processor and touch screen processor and the monitor supervision platform being acquired to the parameters of detection model；The utility model cost is low, simple to operate, detection efficiency is high, realizes quick detection to the air cooler of different size, finds optimal heat transfer coefficient, effectively increases the heat exchange efficiency of air cooler.
Description
Technical field
Automatic Measurement Technique field is the utility model is related to, especially a kind of air cooler performance detecting system.
Background technology
Air cooler is a kind of efficient heat-exchange apparatus for being integrated water cooling and air cooling, heat and mass transfer Process fusion, extensively
It is general to be applied to the industries such as metallurgy, petrochemical industry, electric power, chemical industry, building materials.Air intake, air outlet slit, cooling water are provided with air cooler
Heat-exchange tube inside entrance and coolant outlet, cooling water inlet and coolant outlet docking air cooler, heat-exchange tube is interior to flow
Logical cooling water；The heat-exchange tube is placed in the air channel in air cooler, the both ends docking air intake and air outlet slit in air channel, wind
The air to be circulated in road for heat exchange.
For air cooler, heat transfer coefficient（K values）It is the important parameter for weighing its performance indications.It is former according to heat exchange
Manage, the caloric receptivity of cooling water is equal to the thermal discharge for managing outer hot-air in heat-exchange tube, for the fixed air cooler of heat exchange area
For, the caloric receptivity of cooling water is relevant with the flow of cooling water and the change of cooling water entry and exit temperature respectively in heat-exchange tube,
The thermal discharge of the outer hot-air of pipe is relevant with the flow of hot-air and the change of air entry and exit temperature respectively.However, heat transfer coefficient
（K values）Size with the caloric receptivity of cooling water in the heat exchange area of air cooler, heat-exchange tube and the thermal discharge of the outer hot-air of pipe
And the resistance of fluid has larger correlation in air cooler.Therefore, by being improved to air cooler internal structure, to the greatest extent may be used
Energy ground improves heat transfer coefficient, and the heat exchange efficiency for lifting air cooler is particularly important.
Current each producer is not found suitably lifting the method for the heat exchange efficiency of air cooler.The side being usually taken
Method is that first designed air cooler is made, then its property indices tested again.This test mode behaviour
Make complicated, poor universality, aimed detection can only be carried out to the air cooler being ready for；Due to influenceing air cooler heat transfer coefficient（K
Value）Various parameters it is relatively more, data are acquired to waste time and energy with analysis, and is optimized to air cooler structure
During, it is necessary to repeatedly rectified and improved to air cooler, consume substantial amounts of financial resources and material resources.Therefore, design one kind is applied to
The detecting system of the air cooler of different size, for saving testing cost, improving detection efficiency, realize each seed ginseng to air cooler
Number index optimizes configuration, and finds suitable heat transfer coefficient（K values）It is particularly important.
The content of the invention
The purpose of this utility model seeks to solve currently employed traditional test air cooler property indices
When testing cost is high, waste time and energy, detection efficiency is low, it is difficult to rapid realize optimizes to the various parameters index of air cooler
The problem of configuring, and finding suitable heat transfer coefficient, a kind of air cooler performance detecting system is provided for this.
Concrete scheme of the present utility model is：A kind of air cooler performance detecting system, it is characterized in that：Including air cooling system,
Water-cooling system and the detection model to air cooler progress equal proportion scaling and corresponding control system；
The air cooling system includes the air intake with detection model, the relative admission line and escape pipe connect in outlet respectively
Road, centrifugal blower, control valve A, nozzle flowmeter and air heater are sequentially provided with admission line；
The water-cooling system is included by the cooling water inlet with detection model, the outlet and cold respectively of water inlet pipe, outlet pipe
But the water circulation system that the import and export docking of device is formed, is respectively arranged with control valve B, on water inlet pipe on water inlet pipe and outlet pipe
It is additionally provided with water pump and vortex-shedding meter；
The control system include several sensors, data acquisition and procession module, A/D modular converters, processor and
Touch screen processor and monitor supervision platform, each sensor include the temperature sensor of the air inlet end installed in detection model
t1, pressure sensor p1, the temperature sensor t installed in the air outlet slit end of detection model2, pressure sensor p2With installed in
The temperature sensor T at the cooling water inlet end of detection model1, pressure sensor P1, installed in the air outlet slit end of detection model
Temperature sensor T2, pressure sensor P2；The number that each sensor and nozzle flowmeter and vortex-shedding meter will collect respectively
According to transmitting to data acquisition and procession module, the collection of electric signal is completed by data acquisition and procession module, and electric signal is put
The scope that can be sampled to A/D modular converters greatly；A/D modular converters are transferred to after carrying out analog-to-digital conversion to the electric signal received
Processor；Processor to data is handled to obtain the air intake of detection model, outlet side and cooling water inlet, outlet side
Real-time parameters, and these parameters are transmitted to touch screen processor and monitor supervision platform；Touch screen processor passes through configuration
Interface shows the current state of detection model in the form of chart and word, and is entered by the configuration input domain on interface
Row related quantitative and the setting of variable and the setting of relevant parameter, to form good man-machine interaction；Processor is according to touch-screen
The parameter of processor setting, controls the work of centrifugal blower, air heater and cooler, water pump and control valve A, B in real time
Dynamically.
Control valve A described in the utility model selects the automatically controlled butterfly valve of wafer type, between centrifugal blower and nozzle flowmeter
Admission line on three-way pipe is housed, the automatically controlled butterfly valve of wafer type is installed on the main line of the three-way pipe, on the side of three-way pipe
To being connected to evacuated tube on the pipeline of road, electric butterfly valve A is housed, electric butterfly valve A on off state is carried out in fact by processor in evacuated tube
When control.
Water inlet pipe described in the utility model is made up of water inlet pipe a and water inlet pipe b；It is provided between water inlet pipe a and water inlet pipe b
Water tank, water inlet pipe a is installed on the port of export of cooler, and cooling water caused by cooler is inputted into water tank；B pairs of water inlet pipe
The cooling water inlet end of water receiving case and detection model, bypass branch is provided with the water inlet pipe b between water pump and vortex-shedding meter,
Electric butterfly valve B is housed in bypass branch, electric butterfly valve B on off state is controlled in real time by processor, and bypass branch is used
Voltage division processing is carried out when the hydraulic pressure in water inlet pipe is too high, a part of cooling water is back in water tank.
Centrifugal blower described in the utility model provided with fourth gear flow configure, flow increase ratio be 0% when, there is provided stream
Measure as 2300kg/h, the pipeline pressure difference of matching is 3100Pa, when it is 33% that flow, which increases ratio, there is provided flow be 3100kg/h,
The pipeline pressure difference of matching is 5000Pa, when it is 67% that flow, which increases ratio, there is provided flow be 3850kg/h, the pipeline pressure of matching
Difference is 7500Pa, flow increase ratio be 100% when, there is provided flow be 4600kg/h, the pipeline pressure difference of matching is 10500Pa；
For the air mass flow passed through on the nozzle flowmeter in 4600kg/h, pressure drop is less than 3200Pa；The volume of the air heater
It is 150KW to determine power, and is respectively used to realize the power adjusting of this fourth gear of 25KW, 50KW, 100KW and 150KW, air heater
On the air mass flow that passes through in 4600kg/h, pressure drop is less than 1000Pa.
The utility model cost is cheap, simple to operate, detection efficiency is high, by designing air cooling system and water-cooling system
In-site modeling is carried out to the working environment of air cooler, and using the detection model to air cooler progress equal proportion scaling to air cooler
Air intake, outlet side and cooling water inlet, the parameters of outlet side monitored in real time, while the parameter to detecting
Analyzed and handled, realized and the various parameters index of the air cooler of different size is rapidly distributed rationally, and look for
To suitable heat transfer coefficient（K values）, so as to substantially increase the heat exchange efficiency of lifting air cooler.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is control structure block diagram of the present utility model.
In figure：1-detection model, 2-admission line, 3-outlet pipe, 4-centrifugal blower, 5-control valve A, 6-spray
Mouth flowmeter, 7-air heater, 8-water inlet pipe, 9-outlet pipe, 10-cooler, 11-control valve B, 12-water pump,
13-vortex-shedding meter, 14-temperature sensor t1, 15-pressure sensor p1, 16-temperature sensor t2, 17-pressure sensing
Device p2, 18-temperature sensor T1, 19-pressure sensor P1, 20-temperature sensor T2, 21-pressure sensor P2, 22-number
According to collection and processing module, 23-A/D modular converters, 24-processor, 25-touch screen processor, 26-monitor supervision platform,
27-three-way pipe, 28-evacuated tube, 29-electric butterfly valve A, 30-water inlet pipe a, 31-water inlet pipe b, 32-water tank, 33-bypass
Branch pipe, 34-electric butterfly valve B.
Embodiment
Referring to Fig. 1-2, a kind of air cooler performance detecting system, including air cooling system, water-cooling system and to air cooler carry out
The detection model 1 of equal proportion scaling and corresponding control system.The principle of the detecting system is：By design air cooling system and
Water-cooling system carries out in-site modeling to the working environment of air cooler, and in the working environment of simulation, realizes to detection model 1
Heat transfer coefficient（K values）And the test of relevant parameter, and then come to the detection of air cooler performance, and with this to air cooler inside
Structure is targetedly optimized, to obtain the higher coefficient of heat conduction；
The air cooling system includes the air intake with detection model 1, the relative admission line 2 and outlet connect in outlet respectively
Pipeline 3, centrifugal blower 4, control valve A5, nozzle flowmeter 6 and air heater 7, control valve are sequentially provided with admission line 2
A5 selects the automatically controlled butterfly valve of wafer type；
The water-cooling system include by water inlet pipe 8, outlet pipe 9 respectively the cooling water inlet with detection model 1, outlet and
The water circulation system that the import and export docking of cooler 10 is formed；Control valve B11 is respectively arranged with water inlet pipe 8 and outlet pipe 9, is controlled
Valve B11 processed selects ball valve；Water pump 12 and vortex-shedding meter 13 are additionally provided with water inlet pipe 8, water pump 12 selects vertical centrifugal pump；
The control system includes several sensors, data acquisition and procession module 22, A/D modular converters 23, processing
Device 24 and touch screen processor 25 and monitor supervision platform 26, each sensor include the air inlet end installed in detection model 1
Temperature sensor t114th, pressure sensor p115, the temperature sensor t installed in the air outlet slit end of detection model 1216th, press
Force snesor p2The 17 and temperature sensor T installed in the cooling water inlet end of detection model 1118th, pressure sensor P119, peace
Temperature sensor T mounted in the air outlet slit end of detection model220th, pressure sensor P221；Each sensor and nozzle flowmeter
6 and vortex-shedding meter 13 respectively by the data transfer collected to data acquisition and procession module 22, by data acquisition with
The collection that module 22 completes electric signal is managed, and electric signal is amplified to the scope that A/D modular converters 23 can sample；A/D is changed
Module 23 is transferred to processor 24 after carrying out analog-to-digital conversion to the electric signal received；Processor 24 is handled to obtain to data
Air intake, outlet side and the cooling water inlet of detection model 1, the real-time parameters of outlet side, and these parameters are passed
Transport to touch screen processor and monitor supervision platform；Touch screen processor 25 by configuration interface by the current state of detection model 1 with
The form of chart and word is shown, and carries out related quantitative and variable setting and phase by the configuration input domain on interface
The setting of parameter is answered, to form good man-machine interaction；The parameter that processor 24 is set according to touch screen processor 25, in real time control
Centrifugal blower 4, air heater 7 and cooler 10 processed, water pump 12 and control valve A5, control valve B11 trend of work.
Three-way pipe 27 is housed on the admission line in the present embodiment between centrifugal blower 4 and nozzle flowmeter 6, it is described right
The automatically controlled butterfly valve of clip is installed on the main line of the three-way pipe 27, to being connected to evacuated tube in the bypass conduit of three-way pipe 27
28, electric butterfly valve A29 is housed in evacuated tube 28, electric butterfly valve A29 on off state is controlled in real time by processor.The row
Blank pipe 28 to detecting system complete test experience after, discharge admission line 2 in gas.
Water inlet pipe 8 described in the present embodiment is made up of water inlet pipe a30 and water inlet pipe b31；Water inlet pipe a30 and water inlet pipe b31
Between be provided with water tank 32, water inlet pipe a30 is installed on the port of export of cooler 10, and by cooling water caused by cooler 10 input to
In water tank 32；Water inlet pipe b31 docks the cooling water inlet end of water tank 32 and detection model 1, in water pump 12 and vortex-shedding meter 13
Between water inlet pipe b be provided with bypass branch 33, electric butterfly valve B34, electric butterfly valve B34 switch are housed in bypass branch 33
State is controlled in real time by processor 24, and the hydraulic pressure that bypass branch 33 is used in water inlet pipe 8 carries out voltage division processing when too high,
A part of cooling water is back in water tank 32.
Centrifugal blower 4 described in the present embodiment provided with fourth gear flow configure, flow increase ratio be 0% when, there is provided flow
For 2300kg/h, the pipeline pressure difference of matching is 3100Pa, flow increase ratio be 33% when, there is provided flow be 3100kg/h,
The pipeline pressure difference matched somebody with somebody is 5000Pa, when it is 67% that flow, which increases ratio, there is provided flow be 3850kg/h, the pipeline pressure difference of matching
For 7500Pa, when it is 100% that flow, which increases ratio, there is provided flow be 4600kg/h, the pipeline pressure difference of matching is 10500Pa；Institute
The air mass flow passed through on nozzle flowmeter 6 is stated in 4600kg/h, pressure drop is less than 3200Pa；The volume of the air heater 7
It is 150KW to determine power, and is respectively used to realize the power adjusting of this fourth gear of 25KW, 50KW, 100KW and 150KW, air heater
For the air mass flow passed through on 7 in 4600kg/h, pressure drop is less than 1000Pa.
Design temperature sensor t in the present embodiment114th, pressure sensor p115th, temperature sensor t216th, pressure sensor
p217th, temperature sensor T118th, pressure sensor P119th, temperature sensor T220th, pressure sensor P221 numbers collected in real time
According to using t successively1、p1、t2、p2、T1、P1、T2And P2Represent；The number that setting nozzle flowmeter 6 and vortex-shedding meter 13 collect in real time
According to using W successively1And W2Represent；The heat exchange area of setting air cooler is represented with A；Set the heat transfer mean temperature difference t of air coolerm
Represent；Setting uses C successively by the cooling water in air cooler and the specific heat capacity of hot-air in real timeCooling waterAnd CHot-airRepresent；Setting is empty
The heat transfer coefficient of cooler is represented with K.
According to the above-mentioned data collected, three fundamental equations of air cooler heat exchange can be obtained, it is as follows：
Heat transfer basic equation Q=KA tm（1-1）
Equation of heat balance, to the caloric receptivity of cooling water in air cooler heat-exchange tube
QInhale=W2CCooling water（T2-T1）（1-2）
To the thermal discharge of hot-air outside air cooler heat-exchange tube
QPut=W1CHot-air（t2-t1）（1-3）
It can be seen from heat exchange principle, Q=QInhale=QPut, can be logical when so actually looking for the optimum k value to detection model 1
Cross in detection model 1 in the case that hot air flowrate and air pressure are certain, pass through the caloric receptivity of cooling water in air cooler heat-exchange tube
Equation（1-2）To draw the K value curves of detection model 1；Correspondingly, also can in by detection model 1 flow of cooling water and
In the case that hydraulic pressure is certain, pass through the thermal discharge of hot-air outside air cooler heat-exchange tube（1-3）To draw the K values of detection model 1
Curve；The corresponding K values curve of detection model 1 can also be drawn in the case of different blast and air pressure.Eventually through to K
Value curve is analyzed and handled, and is found the optimal coefficient of heat conduction of detection model 1, has correspondingly been reached to each of air cooler
Kind parameter index optimizes configuration, reaches the purpose detected to its performance.
Claims (4)
1. a kind of air cooler performance detecting system, it is characterized in that：Grade ratio is carried out including air cooling system, water-cooling system and to air cooler
The detection model of example scaling and corresponding control system；
The air cooling system includes the air intake with detection model, the relative admission line and outlet pipe connect in outlet respectively,
Centrifugal blower, control valve A, nozzle flowmeter and air heater are sequentially provided with admission line；
The water-cooling system includes passing through water inlet pipe, the outlet pipe cooling water inlet, outlet and cooler with detection model respectively
Import and export docking form water circulation system, control valve B is respectively arranged with water inlet pipe and outlet pipe, is also set on water inlet pipe
There are water pump and vortex-shedding meter；
The control system includes several sensors, data acquisition and procession module, A/D modular converters, processor and touch
Shield processor and monitor supervision platform, each sensor includes the temperature sensor t of the air inlet end installed in detection model1、
Pressure sensor p1, the temperature sensor t installed in the air outlet slit end of detection model2, pressure sensor p2With installed in detection
The temperature sensor T at the cooling water inlet end of model1, pressure sensor P1, the temperature installed in the air outlet slit end of detection model
Sensor T2, pressure sensor P2；Each sensor and nozzle flowmeter and vortex-shedding meter respectively pass the data collected
Data acquisition and procession module is transported to, the collection of electric signal is completed by data acquisition and procession module, and electric signal is amplified to
The scope that A/D modular converters can sample；A/D modular converters are transferred to processing after carrying out analog-to-digital conversion to the electric signal received
Device；Processor data are handled to obtain the air intake of detection model, outlet side and cooling water inlet, outlet side it is real-time
Parameters, and these parameters are transmitted to touch screen processor and monitor supervision platform；Touch screen processor passes through configuration interface
The current state of detection model is shown in the form of chart and word, and phase is carried out by the configuration input domain on interface
Quantitative and the setting of variable and the setting of relevant parameter are closed, to form good man-machine interaction；Processor is handled according to touch-screen
The parameter of device setting, the trend of work of centrifugal blower, air heater and cooler, water pump and control valve A, B is controlled in real time.
2. a kind of air cooler performance detecting system according to claim 1, it is characterized in that：The control valve A is selected to folder
The automatically controlled butterfly valve of formula, three-way pipe, the automatically controlled butterfly valve peace of wafer type are housed on the admission line between centrifugal blower and nozzle flowmeter
On main line loaded on the three-way pipe, to being connected to evacuated tube in the bypass conduit of three-way pipe, electronic butterfly is housed in evacuated tube
Valve A, electric butterfly valve A on off state are controlled in real time by processor.
3. a kind of air cooler performance detecting system according to claim 1, it is characterized in that：The water inlet pipe is by water inlet pipe a
Formed with water inlet pipe b；Water tank is provided between water inlet pipe a and water inlet pipe b, water inlet pipe a is installed on the port of export of cooler, and will be cold
But cooling water caused by device is inputted into water tank；Water inlet pipe b docks the cooling water inlet end of water tank and detection model, water pump with
Water inlet pipe b between vortex-shedding meter is provided with bypass branch, electric butterfly valve B is housed in bypass branch, electric butterfly valve B's opens
Off status is controlled in real time by processor, and the hydraulic pressure that bypass branch is used in water inlet pipe carries out voltage division processing when too high, will
A part of cooling water is back in water tank.
4. a kind of air cooler performance detecting system according to claim 1 or 2 or 3, it is characterized in that：The centrifugal blower is set
Have fourth gear flow configuration, flow increase ratio be 0% when, there is provided flow be 2300kg/h, the pipeline pressure difference of matching is
3100Pa, flow increase ratio be 33% when, there is provided flow be 3100kg/h, the pipeline pressure difference of matching is 5000Pa, in flow
Increase ratio be 67% when, there is provided flow be 3850kg/h, the pipeline pressure difference of matching be 7500Pa, flow increasing ratio be 100%
When, there is provided flow be 4600kg/h, the pipeline pressure difference of matching is 10500Pa；The air stream passed through on the nozzle flowmeter
For amount in 4600kg/h, pressure drop is less than 3200Pa；The rated power of the air heater is 150KW, and is respectively used to realize
The power adjusting of this fourth gear of 25kW, 50kW, 100kW and 150kW, the air mass flow passed through on air heater is in 4600kg/h
When, pressure drop is less than 1000Pa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720324944.3U CN206683870U (en) | 2017-03-30 | 2017-03-30 | A kind of air cooler performance detecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720324944.3U CN206683870U (en) | 2017-03-30 | 2017-03-30 | A kind of air cooler performance detecting system |
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| CN201720324944.3U Expired - Fee Related CN206683870U (en) | 2017-03-30 | 2017-03-30 | A kind of air cooler performance detecting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769159A (en) * | 2017-03-30 | 2017-05-31 | 湖北大冶中海换热器有限公司 | A kind of air cooler performance detecting system |
| CN111337287A (en) * | 2020-04-23 | 2020-06-26 | 陕西安得电力设备制造有限公司 | Transformer cooler cooling efficiency monitoring system |
| CN114964516A (en) * | 2022-04-20 | 2022-08-30 | 合肥通用机械研究院有限公司 | Temperature abnormity early warning system of oil refining device air cooler tube bundle |
| CN114964516B (en) * | 2022-04-20 | 2024-09-24 | 合肥通用机械研究院有限公司 | Abnormal temperature early warning system of oil refining device air cooler tube bank |
-
2017
- 2017-03-30 CN CN201720324944.3U patent/CN206683870U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769159A (en) * | 2017-03-30 | 2017-05-31 | 湖北大冶中海换热器有限公司 | A kind of air cooler performance detecting system |
| CN111337287A (en) * | 2020-04-23 | 2020-06-26 | 陕西安得电力设备制造有限公司 | Transformer cooler cooling efficiency monitoring system |
| CN114964516A (en) * | 2022-04-20 | 2022-08-30 | 合肥通用机械研究院有限公司 | Temperature abnormity early warning system of oil refining device air cooler tube bundle |
| CN114964516B (en) * | 2022-04-20 | 2024-09-24 | 合肥通用机械研究院有限公司 | Abnormal temperature early warning system of oil refining device air cooler tube bank |
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Granted publication date: 20171128 |