CN109341896A - A kind of monitoring system and monitoring method for cast iron heat exchanger - Google Patents
A kind of monitoring system and monitoring method for cast iron heat exchanger Download PDFInfo
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- CN109341896A CN109341896A CN201811208815.3A CN201811208815A CN109341896A CN 109341896 A CN109341896 A CN 109341896A CN 201811208815 A CN201811208815 A CN 201811208815A CN 109341896 A CN109341896 A CN 109341896A
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- temperature
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- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 10
- 239000000779 smoke Substances 0.000 claims abstract description 74
- 239000000428 dust Substances 0.000 claims abstract description 34
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 241000220317 Rosa Species 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims description 35
- 238000001816 cooling Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003500 flue dust Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Nonlinear Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention provides a kind of monitoring systems for cast iron heat exchanger, temperature sensor and smoke sensor device including cast iron heat exchanger smoke outlet is arranged in, smoke outlet is connected to smoke discharging pipe, first valve is set on smoke discharging pipe, pipeline between first valve and smoke outlet is also connected to auxiliary smoke exhaust pipe, blower is set on auxiliary smoke exhaust pipe, in the exit of auxiliary smoke exhaust pipe, dust removing tube is set, dust Rose Box is arranged in the lower section of dust removing tube, and dust Rose Box is connected to the water circulation pipe of cast iron heat exchanger；Temperature sensor is connect with PLC controller respectively with smoke sensor device, and PLC controller is connect with blower.The program can timely monitor the flue-gas temperature of heat exchanger discharge and smog degree is handled in time once being abnormal, and ensure that the normal operation of heat exchanger.
Description
Technical field
The present invention relates to heating field, especially a kind of monitoring system and monitoring method for cast iron heat exchanger.
Background technique
In the prior art, well known technology is that the heating in winter is particularly important for the northern area of China, at present
In Heat supply and heat exchange field, cast iron heat exchanger is used on a large scale due to having the following advantages that, and 1, with its mature casting technique, it makes
With regard to big furnace heating surface, efficient heat radiation heat transfer type is used, heat-transfer effect is enhanced；2, the low nitrogen of high-quality low-sulfur is low
Phosphorus pearlite material has extremely strong heat-resistant impact ability and heat resistive fatigue strength, and the capacity of heat transmission is significantly better than steel boiler, has
Have stronger corrosion resistance and an oxidation resistance, 3, bored using thermal-arrest in heat exchanger, no matter flue gas laterally, parallel baffled, institute
Some thermal-arrest cones are all washed away by the turbulent flow of flue gas and form symmetrical stable state vortex and recirculating zone, thermal boundary layer quilt at its back side
It constantly destroys and re-forms, enhance heat transfer effect.But cast iron heat exchanger used at present, it does not all monitor mostly, in this way
In use, it once temperature changes or has flue gas blocking, can not will normally exchange heat.This is present in the prior art
Shortcoming.
Summary of the invention
The purpose of the present invention is to deficiencies of the prior art, and provide a kind of prison for cast iron heat exchanger
Control system and monitoring method, the program can timely monitor the flue-gas temperature and smog degree of heat exchanger discharge, once occur different
Often, it is handled in time, ensure that the normal operation of heat exchanger.
This programme is achieved by the following technical measures: a kind of monitoring system for cast iron heat exchanger, including is set
The temperature sensor and smoke sensor device in cast iron heat exchanger smoke outlet are set, smoke outlet is connected to smoke discharging pipe, in smoke discharging pipe
The first valve of upper setting, the pipeline between the first valve and smoke outlet are also connected to auxiliary smoke exhaust pipe, set on auxiliary smoke exhaust pipe
Set blower, dust removing tube be set in the exit of auxiliary smoke exhaust pipe, the lower section of dust removing tube is arranged dust Rose Box, dust Rose Box with
The water circulation pipe of cast iron heat exchanger is connected to；Temperature sensor is connect with PLC controller respectively with smoke sensor device, PLC control
Device is connect with blower.There is temperature sensor that can timely monitor the temperature of heat exchanger smoke outlet, smoke sensor device can be timely
Monitoring heat exchanger smoke outlet smoke condition, in this way convenient for PLC controller control fan switch.There is auxiliary smoke exhaust pipe, in this way
It can be used for carrying out auxiliary smoke evacuation, dust removing tube can will assist the flue dust of smoke exhaust pipe to filter out, and dust collecting box is for collecting
Flue dust, but also shower water can be collected, after the shower water being collected into filtering, it is sent into the water circulation pipe of heat exchanger, this
The thermal energy in flue gas is further utilized in sample.
The dust removing tube includes collecting region, mixed zone and dedusting cooling area, and collecting region is arranged in the lower section of mixed zone, removes
The top of mixed zone is arranged in dirt cooling area, and collecting region is cone, and dust Rose Box is arranged below the collecting region of cone,
Mixed zone is connected to auxiliary smoke exhaust pipe.The dedusting cooling area includes multiple inclined plates arranged in a crossed manner, and inclined plate tilts down, and
The front end of each inclined plate is more than the middle line of dedusting cooling area, and spray thrower, spray thrower is arranged in the center of top in dedusting cooling area
It is connected to water supplying pipe, solenoid valve is set on water supplying pipe, the solenoid valve is connect with PLC controller, and such flue gas enters mixing
Qu Hou rises to dedusting cooling area, heavy due to there is the baffle of intersection that can play blocking to soot dust granule in flue dust cooling area
The effect of drop, there is spray thrower, can the particle excessively high to some temperature play the role of cooling, and spray thrower sprays out
Water, can adsorb the particle in flue dust, and water, to flowing down, during flowing, plays further purification to flue dust by baffle
Effect.Setting is used for the filter screen of impurity screening in the dust Rose Box.Impurity can be filtered out in this way, avoid flowing into heat exchange
The water circulation pipe of device.
The spray thrower includes multiple round spray tubes with water outlet, and the diameter of each circle spray tube is different, and
The round spray tube is concentric circles.The spray field that different-diameter can be formed in this way, increases the effect of spray.
Thermistor is set at the top of dust removing tube, thermistor is connect with warning circuit, and the warning circuit includes
The collector of triode VT1, triode VT1 are connect by thermistor RT with power cathode, and the collector of triode VT1 is logical
Cross slide rheostat RB, resistance R1 is connect with positive pole, the emitter of triode VT1 is connect with power cathode, triode VT1
Collector connect with positive pole by resistance R2, the collector of triode VT1 is connected with the input terminal of NOT gate IC1, NOT gate
The output end of IC1 is connected with the input terminal of NOT gate IC2, and the output end of NOT gate IC2 is connected with the input terminal of NOT gate IC3, NOT gate IC2
Output end connect with power cathode by indicator light L1, resistance R3, the output end of NOT gate IC3 passes through indicator light L2, resistance R4
It is connect with power cathode, the output end of NOT gate IC3 is connect with the base stage of triode VT2, and the emitter and power supply of triode VT2 is negative
Pole connection, the collector of triode VT2 are connect by relay J with positive pole, there is that diode D is in parallel with relay J, relay
The normally opened contact J-1 of device J connects with alarm B.Last temperature monitoring can be carried out to the flue gas of discharge in this way, once discharge
Flue-gas temperature it is excessively high, then issue warning reminding staff, avoid that accident occurs.
A kind of monitoring method for cast iron heat exchanger includes the following steps: 1) to carry out the smoke outlet of cast iron heat exchanger
Temperature and Smoke Detection；2) if temperature is failure to actuate between the ceiling temperature and lower limit temperature of setting, if temperature is more than
Ceiling temperature then issues alarm, simultaneously closes off the first valve of smoke discharging pipe, makes flue gas from auxiliary smoke exhaust pipe discharge, and beat
It opens spray thrower and cooling dedusting is carried out to flue gas；If temperature is lower than lower limit temperature, blower and spray thrower are opened, is assisted out
Wind；3) if smog is more than the threshold value of setting, alarm is issued, and close the first valve of smoke discharging pipe, starts blower, be cigarette
Gas opens spray thrower and cools down to flue gas ash removal from auxiliary smoke exhaust pipe discharge.
In step 2, when temperature is more than the ceiling temperature of setting, the flue gas temperature being discharged from auxiliary smoke exhaust pipe is also monitored
Degree stops the work of cast iron heat exchanger if temperature is still more than the ceiling temperature of setting.
It can be seen that compared with prior art, the present invention implementing with substantive distinguishing features outstanding and significant progress
Beneficial effect be also obvious.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the specific embodiment of the invention.
Fig. 2 is the structural schematic diagram of dust removing tube.
Fig. 3 is the structural schematic diagram of spray thrower.
Fig. 4 is the circuit diagram of warning circuit.
In figure, 1 is cast iron heat exchanger, and 2 be smoke discharging pipe, and 3 be the first valve, and 4 be auxiliary smoke exhaust pipe, and 5 be dust removing tube, 6
It is blower for dust Rose Box, 7,8 be thermistor, and 9 be mixed zone, and 10 be dedusting cooling area, and 11 be collecting region, and 12 be oblique
Plate, 13 be spray thrower, and 14 be round spray tube, and 15 be water outlet, and 16 be temperature sensor, and 17 be smoke sensor device, and 18 be electricity
Magnet valve.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by a specific embodiment, and its attached drawing is combined, it is right
This programme is illustrated.
By attached drawing as can be seen that the monitoring system for cast iron heat exchanger of this programme, including setting exchange heat in cast iron
The temperature sensor 16 and smoke sensor device 17 of 1 smoke outlet of device, smoke outlet is connected to smoke discharging pipe, is arranged on smoke discharging pipe 2
First valve 3, the pipeline between the first valve 3 and smoke outlet are also connected to auxiliary smoke exhaust pipe 4, are arranged on auxiliary smoke exhaust pipe 4
Dust removing tube 10 is arranged in the exit of auxiliary smoke exhaust pipe 4 in blower 7, and dust Rose Box 6 is arranged in the lower section of dust removing tube 10, described
Setting is used for the filter screen of impurity screening in dust Rose Box 6.The water circulation pipe of dust Rose Box 6 and cast iron heat exchanger 1 connects
It is logical；Temperature sensor 16 is connect with PLC controller respectively with smoke sensor device 17, and PLC controller uses PLC commonly used in the art
Controller, temperature sensor and smoke sensor device are using sensor well known in the art, and PLC controller is connect with blower 7.
The dust removing tube 5 includes collecting region 11, mixed zone 9 and dedusting cooling area 10, and collecting region 11 is arranged in mixed zone 9
Lower section, dedusting cooling area 10 is arranged in the top of mixed zone 9, and collecting region 11 is cone, under the collecting region 11 of cone
Side's setting dust Rose Box 6, mixed zone 9 is connected to auxiliary smoke exhaust pipe 4.The dedusting cooling area 10 includes multiple arranged in a crossed manner
Inclined plate 12, inclined plate 12 tilts down, and the front end of each inclined plate 12 is more than the middle line of dedusting cooling area 10, dedusting cool down
Spray thrower 13 is arranged in the center of top in area 10, and spray thrower 13 is connected to water supplying pipe, and solenoid valve 18, the electricity are arranged on water supplying pipe
Magnet valve 18 is connect with PLC controller, and the spray thrower 13 includes multiple round spray tubes 14 with water outlet 15, each circle
The diameter of spray tube 14 is different, and the round spray tube 14 is concentric circles.
Thermistor 8 is set at the top of dust removing tube 5, thermistor is connect with warning circuit, and thermistor is in circuit diagram
Middle to be identified with RT, the warning circuit includes triode VT1, and the collector of triode VT1 passes through thermistor RT and power supply
The collector of cathode connection, triode VT1 is connect by slide rheostat RB, resistance R1 with positive pole, the hair of triode VT1
Emitter-base bandgap grading is connect with power cathode, and the collector of triode VT1 is connect by resistance R2 with positive pole, the current collection of triode VT1
Pole is connected with the input terminal of NOT gate IC1, and the output end of NOT gate IC1 is connected with the input terminal of NOT gate IC2, the output end of NOT gate IC2
It is connected with the input terminal of NOT gate IC3, the output end of NOT gate IC2 is connect by indicator light L1, resistance R3 with power cathode, NOT gate
The output end of IC3 is connect by indicator light L2, resistance R4 with power cathode, the output end of NOT gate IC3 and the base stage of triode VT2
Connection, the emitter of triode VT2 are connect with power cathode, and the collector of triode VT2 is connected by relay J and positive pole
It connects, there is that diode D is in parallel with relay J, the normally opened contact J-1 of relay J connects with alarm B.
A kind of monitoring method of the cast iron heat exchanger using above system, it is characterized in that including the following steps: 1) to cast iron
The smoke outlet of heat exchanger carries out temperature and Smoke Detection；If 2) temperature is between the ceiling temperature and lower limit temperature of setting,
It is failure to actuate, if temperature is more than ceiling temperature, issues alarm, simultaneously close off the first valve of smoke discharging pipe, make flue gas from auxiliary
It helps smoke exhaust pipe to be discharged, and opens spray thrower and cooling dedusting is carried out to flue gas；If temperature is lower than lower limit temperature, blower is opened
And spray thrower, carry out auxiliary outlet air；When temperature is more than the ceiling temperature of setting, the flue gas being discharged from auxiliary smoke exhaust pipe is also monitored
Temperature stops the work of cast iron heat exchanger if temperature is still more than the ceiling temperature of setting.3) if smog is more than the threshold of setting
Value, then issue alarm, and close the first valve of smoke discharging pipe, starts blower, is flue gas from auxiliary smoke exhaust pipe discharge, and open
Spray thrower cools down to flue gas ash removal.
The present invention is not limited in above-mentioned specific embodiment, and those of ordinary skill in the art are in essential scope of the invention
The variations, modifications, additions or substitutions inside made, also should belong to protection scope of the present invention.
Claims (8)
1. a kind of monitoring system for cast iron heat exchanger, it is characterized in that: including the temperature that cast iron heat exchanger smoke outlet is arranged in
Sensor and smoke sensor device, smoke outlet are connected to smoke discharging pipe, and the first valve, the first valve and row are arranged on smoke discharging pipe
Pipeline between mouth is also connected to auxiliary smoke exhaust pipe, blower is arranged on auxiliary smoke exhaust pipe, in the exit of auxiliary smoke exhaust pipe
Dust removing tube is set, and dust Rose Box is arranged in the lower section of dust removing tube, and dust Rose Box is connected to the water circulation pipe of cast iron heat exchanger；
Temperature sensor is connect with PLC controller respectively with smoke sensor device, and PLC controller is connect with blower.
2. the monitoring system according to claim 1 for cast iron heat exchanger, it is characterized in that: the dust removing tube includes receiving
The lower section of mixed zone is arranged in Ji Qu, mixed zone and dedusting cooling area, collecting region, and the upper of mixed zone is arranged in dedusting cooling area
Side, collecting region are cone, and dust Rose Box is arranged below the collecting region of cone, and mixed zone is connected to auxiliary smoke exhaust pipe.
3. the monitoring system according to claim 2 for cast iron heat exchanger, it is characterized in that: the dedusting cooling area is wrapped
Multiple inclined plates arranged in a crossed manner are included, inclined plate tilts down, and the front end of each inclined plate is more than the middle line of dedusting cooling area, is being removed
Spray thrower is arranged in the center of top of dirt cooling area, and spray thrower is connected to water supplying pipe, and solenoid valve, the electromagnetism are arranged on water supplying pipe
Valve is connect with PLC controller.
4. the monitoring system according to claim 3 for cast iron heat exchanger, it is characterized in that: the spray thrower includes multiple
The diameter of round spray tube with water outlet, each circle spray tube is different, and the round spray tube is concentric circles.
5. the monitoring system according to claim 1 for cast iron heat exchanger, it is characterized in that: being set at the top of dust removing tube
Thermistor is set, thermistor is connect with warning circuit, and the warning circuit includes triode VT1, the collection of triode VT1
Electrode is connect by thermistor RT with power cathode, and the collector of triode VT1 passes through slide rheostat RB, resistance R1 and electricity
The connection of source anode, the emitter of triode VT1 are connect with power cathode, and the collector of triode VT1 passes through resistance R2 and power supply
Anode connection, the collector of triode VT1 connects with the input terminal of NOT gate IC1, and the output end of NOT gate IC1 and NOT gate IC2's is defeated
Enter end connection, the output end of NOT gate IC2 is connected with the input terminal of NOT gate IC3, and the output end of NOT gate IC2 passes through indicator light L1, electricity
Resistance R3 is connect with power cathode, and the output end of NOT gate IC3 is connect by indicator light L2, resistance R4 with power cathode, NOT gate IC3's
Output end is connect with the base stage of triode VT2, and the emitter of triode VT2 is connect with power cathode, the collector of triode VT2
It is connect by relay J with positive pole, there is that diode D is in parallel with relay J, the normally opened contact J-1 and alarm of relay J
B series connection.
6. the monitoring system according to claim 1 for cast iron heat exchanger, it is characterized in that: in the dust Rose Box
Filter screen for impurity screening is set.
7. a kind of monitoring method for cast iron heat exchanger, it is characterized in that including the following steps:
1) temperature and Smoke Detection are carried out to the smoke outlet of cast iron heat exchanger；
If 2) temperature is failure to actuate between the ceiling temperature and lower limit temperature of setting, if temperature is more than ceiling temperature,
Alarm is issued, the first valve of smoke discharging pipe is simultaneously closed off, makes flue gas from auxiliary smoke exhaust pipe discharge, and open spray thrower to cigarette
Gas carries out cooling dedusting；If temperature is lower than lower limit temperature, blower and spray thrower are opened, auxiliary outlet air is carried out；
3) if smog is more than the threshold value of setting, alarm is issued, and close the first valve of smoke discharging pipe, starts blower, be
Flue gas opens spray thrower and cools down to flue gas ash removal from auxiliary smoke exhaust pipe discharge.
8. the monitoring method according to claim 7 for cast iron heat exchanger, it is characterized in that: working as temperature in step 2
More than setting ceiling temperature when, also monitor from auxiliary smoke exhaust pipe be discharged flue-gas temperature, if temperature is still more than setting
Ceiling temperature stops the work of cast iron heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208815.3A CN109341896A (en) | 2018-10-17 | 2018-10-17 | A kind of monitoring system and monitoring method for cast iron heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208815.3A CN109341896A (en) | 2018-10-17 | 2018-10-17 | A kind of monitoring system and monitoring method for cast iron heat exchanger |
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| CN109341896A true CN109341896A (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811208815.3A Pending CN109341896A (en) | 2018-10-17 | 2018-10-17 | A kind of monitoring system and monitoring method for cast iron heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982753A (en) * | 2020-07-28 | 2020-11-24 | 青岛海尔空调器有限总公司 | Method and system for detecting water drainage capacity of heat exchanger fin |
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