CN107152876A - A kind of roller shutter type cooling tower air intake self-checking device - Google Patents

A kind of roller shutter type cooling tower air intake self-checking device Download PDF

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Publication number
CN107152876A
CN107152876A CN201710339202.2A CN201710339202A CN107152876A CN 107152876 A CN107152876 A CN 107152876A CN 201710339202 A CN201710339202 A CN 201710339202A CN 107152876 A CN107152876 A CN 107152876A
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CN
China
Prior art keywords
water temperature
cooling tower
roller shutter
circulating water
wind
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710339202.2A
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Chinese (zh)
Inventor
郑圣杰
丁韧涛
李玉超
李相辰
范伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIAONING LONGDIAN WEIYE NEW ENERGY TECHNOLOGY Co Ltd
Original Assignee
LIAONING LONGDIAN WEIYE NEW ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by LIAONING LONGDIAN WEIYE NEW ENERGY TECHNOLOGY Co Ltd filed Critical LIAONING LONGDIAN WEIYE NEW ENERGY TECHNOLOGY Co Ltd
Priority to CN201710339202.2A priority Critical patent/CN107152876A/en
Publication of CN107152876A publication Critical patent/CN107152876A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00Component parts of trickle coolers
    • F28F25/10Component parts of trickle coolers for feeding gas or vapour
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/003Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers

Abstract

The present invention is to provide a kind of roller shutter type cooling tower air intake self-checking device.Upright of frame is provided with foundation of civil work, on upright of frame top provided with sealing ceiling, electric adjustable air curtain is housed on upright of frame, the oblique column of cooling tower is provided between cooling tower on foundation of civil work;Electric adjustable air curtain is provided with cooling tower bottom, tower circulating water temperature sensor is provided with out in a side lower part of electric adjustable air curtain, and provided with wind direction sensor, go out tower circulating water temperature sensor and wind direction sensor to be connected with PLC circuit respectively, PLC is connected with remote controller circuit.Using apparatus of the present invention can whatsoever season, no matter night on daytime can realize accurate control in time to deep bead.Suitably used as the device of cooling tower temperature adjustment.

Description

A kind of roller shutter type cooling tower air intake self-checking device
Technical field
Equipment is automatically adjusted the present invention is to provide the generating set boiler circulating water temperature of thermal power plant's field of cooling tower, specifically It is a kind of roller shutter type cooling tower air intake self-checking device that ground, which is said,.
Background technology
1. with country《Energy law》Issuing and implementation and world energy sources worsening shortages, the energy conservation of enterprise seems more Come more important, improve plant thermal efficiency, reach that energy-conservation is taped the latent power, reduced the purpose of maintenance cost, the problem of be current anxious to be resolved.
2. the operation level of condenser vacuum system directly affects the economy of Steam Turbine, safe operation.Analyze water temperature pair Influence of the influence and condenser vacuum of condenser vacuum to unit economy, discloses cold in-water temperature and unit is imitated The rule of rate influence.The influence to condenser vacuum is changed by quantitative calculating water temperature simultaneously, provided for cooling tower optimization operation Quantitative analysis means and theoretical foundation, in the energy increasingly today in short supply, have reality to the economy for improving Steam Turbine Meaning.
3. the antifreezing measures that existing cooling tower is used are mainly the method using artificial suspension deep bead.Cooling tower air inlet Height, deep bead weight, volume is big, and suspension, excision workload are big, and manually operate dangerous, fragile.During suspension, Artificial control suspension area makes cooling tower cause serious extension ice phenomenon not in time, causes packing in cooling tower, bracket to be dragged Fall and part water drenching Structure Beam-column causes serious freeze-thaw dew muscle, cooling tower is controlled cooling water from normal safe operation and effectively Temperature.
4. circulating water temperature directly affects the operation level of condenser vacuum system, power plant hyperbolic natural-draft cooling tower master If manually demolition, installation water tower wind board adjusts circulating water temperature, because the Northeast's Temperature Difference Ratio is larger, especially daytime and night The temperature difference differs more than 15 °C, and night dress deep bead is very unsafe, because water temperature adjustment makes circulating water temperature frequent not in time Run in the case of higher or relatively low, this economy to vacuum and unit makes a big impact.
5. water tower maintenance is big, the deep bead now used needs winter all to hang up, and summer all removes, and dismounting is once broken Damage very serious, usually also often remove, install during regulation circulating water temperature so that part deep bead causes to damage, it is so i.e. unrestrained Substantial amounts of maintenance cost occurs again for expense material.
6. the demolition, installation of existing deep bead are entirely manually to complete, night due to illuminate it is insufficient in the case of tear open, Fill deep bead and there is very big personal safety hidden danger, deficiency is especially illuminated in the winter time, the thicker action of the clothes worn is inconvenient, especially It is on ground, ice is all knotted on beam column, dismounts deep bead special hazard.
The content of the invention
The problem of existing for prior art, the invention provides a kind of roller shutter type cooling tower air intake self-checking device. The device adjusts the ventilation of cooling tower by roller shutter unlatching, solves the technical problem of cooling tower temperature adjustment.
The present invention solves the scheme that is used of technical problem:
Upright of frame is provided with foundation of civil work, on upright of frame top provided with sealing ceiling, equipped with electronic on upright of frame Air curtain is adjusted, the oblique column of cooling tower is provided between cooling tower on foundation of civil work;
Electric adjustable air curtain is provided with cooling tower bottom, tower circulating water temperature sensing is provided with out in a side lower part of electric adjustable air curtain Device, and provided with wind direction sensor, go out tower circulating water temperature sensor and wind direction sensor electric with PLC respectively Road is connected, and PLC is connected with remote controller circuit.
Rolling curtain formula system installs one in the peripheral air inlet of cooling tower using steel construction and encloses portal frame each two framework volume Curtain installs a motor driving, realizes the electronic closing of roller shutter and unlatching, by adjusting the tune air curtain of intake, system is monitored in real time Recirculated water condenser inlet water temperature.
Measured by wind speed and direction, regulation windward side and the actual incoming air area of lee face air inlet, make up side in time in real time Influence of the wind to cooling tower radiating effect, keeps water tower flow field symmetrically.By the measurement to water tower interior circulation coolant-temperature gage, The feedforward control that air curtain is adjusted to roller shutter is realized, circulating water temperature variation tendency is intervened in time, and then reach that cold-proof and control is followed Purpose of the ring coolant-temperature gage in optimum temperature range.
When water temperature drop, according to trend analysis, appropriate close adjusts air curtain, reduces air-admitting surface, when water temperature rises, fits Air curtain is adjusted when opening, increases air-admitting surface, so as to automatically adjust intake, cooling tower antifreezing effect is not only acted as, it is more important Be that control circulating water temperature is stable in setting range, improve turbine efficiency, unit is maintained at optimum condition economical operation. Through inspection information, and further investigate the flow behavior of recirculated water etc., with reference to the design feature of double-curve cooling column, analysis wind and water Wind-warm syndrome, wind direction, water temperature, the flow direction of the characteristics of motion and calculating physics each other in tower, what is occurred to cooling scene is various Phenomenon is analyzed, and finds out former control mode reason of problems, is targetedly developed a kind of control accurately, can be reached again Deep bead zero is damaged and personal zero accident, and can realize manual/auto control.
1. power drives motor, is slowed down by motor reducer, the sprocket wheel on output shaft drives chain to move and transmitted Onto main shaft, sprocket wheel drives main shaft rotation.Because deep bead, connection belt position are relatively fixed, main shaft rotates, transmission Connection belt drive deep bead makees follow-up motion, realizes that the deep bead in unit completes unlatching, closing motion.Motor is installed simultaneously Bottle gouard moved by hands, has a power failure also able to turn on or off, realizes operation flexibly, individually controllable.
2. in order to reach accurate Board position control of keeping out the wind, when every time mode of operation need to be changed because of change of the wind, all First make sheet reset zero of keeping out the wind.
Then the control of relevant work pattern is carried out.Avoid and occur controlling entanglement problem because of multiple change of the wind.
3. in order to realize 360 ° of controls of circumference, circumference is divided into 8 parts, i.e. south, north, east, west, the southeast, northwest, west Real-time wind direction signals are introduced PLC by south, northeast, wind direction, wind sensor, and the control sent after calculating to the direction is analyzed by PLC System instruction, makes deep bead formation air channel, and realization is automatically adjusted to circulating water temperature.
4. rationally circulating water temperature is added in systems and is monitored in order that control is more accurate, will by temperature sensor Water temperature signal introduces PLC, and when water temperature increases or reduces, PLC sends increase or reduces the instruction of deep bead opening angle, so that It ensure that circulating water temperature changes in the range of 20 °C of 0.5 °C of plus-minuss.
5. in order that operating personnel carry out micro adjustment, system according to wind direction and the change of water temperature and outdoor temperature to deep bead In add artificial parameter setting link, can significantly be carried to there is related parameter to carry out any adjustment by touch screen operation personnel The reliability of high system and the flexibility of control.
6. control operation system:
The unlatching of rolling curtain, close using three kinds of modes of operation, on the spot manually operated slide fastener, on the spot by starting, stop button behaviour Work, remote operation or Automatic Control.
Manually operated slide fastener on the spot:Slide fastener is turned on and off rolling curtain on the spot.
Push-botton operation on the spot:It is turned on and off on the spot provided with start button regulation rolling curtain.
Remote operation:
Operation can be accessed by DCS by cable, the aperture of rolling curtain can be adjusted in control room.Automatically adjusting to follow Ring coolant-temperature gage measuring point signal accesses PLC or DCS and realizes automatic regulation function according to the change of circulating water temperature, and regulating gradient is to follow 0.5 °C of regulation is raised and lowered once in ring coolant-temperature gage, fully achieves automatic water temperature tracking regulatory function.
Full-automatic regulation:The wind speed and environment temperature and circulating water temperature provided according to anemobiagraph is by PLC according to wind Fast signal determines that rolling curtain is opened, closes size, and whole process is entirely to be needed to realize automatic regulation function according to circulating water temperature.Together When by wind speed, wind direction, water temperature signal introduce touch-screen, operating personnel from screen on can monitor relevant parameter at a glance, enter The timely and effective control of row.
Good effect, using apparatus of the present invention can whatsoever season, no matter night on daytime can be realized to deep bead Accurate control in time.Suitably used as the device of cooling tower temperature adjustment.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is state of a control figure of the present invention;
Fig. 3 is shutter composition of the present invention.
In figure, 0. foundation of civil work, 1. sealing ceilings, 2. electric adjustable air curtains, 3. upright of frame, the oblique column of 4. water towers, 5. is cold But tower, 6. remote controllers, 7.PLC controllers, 8. wind direction sensors, 9. go out tower circulating water temperature sensor.
Embodiment
According to the figure, upright of frame 3 is provided with foundation of civil work 0, on upright of frame top provided with sealing ceiling 1, in frame Erect and electric adjustable air curtain 2 is housed on post, be provided with the oblique column 4 of cooling tower between cooling tower 5 on foundation of civil work;
Electric adjustable air curtain is provided with cooling tower bottom, tower circulating water temperature sensor is provided with out in a side lower part of electric adjustable air curtain 9, and provided with wind direction sensor 8, go out tower circulating water temperature sensor and wind direction sensor respectively with PLC 7 Circuit is connected, and PLC is connected with the circuit of remote controller 6.
The electric adjustable air curtain is roller shutter.
Operation principle:
Rolling curtain formula system installs one in the peripheral air inlet of cooling tower using steel construction and encloses portal frame each two framework roller shutter peace A motor driving is filled, the electronic closing of roller shutter and unlatching is realized, by adjusting the tune air curtain of intake, system monitors circulation in real time Water condenser inlet water temperature.
Measured by wind speed and direction, regulation windward side and the actual incoming air area of lee face air inlet, make up side in time in real time Influence of the wind to cooling tower radiating effect, keeps water tower flow field symmetrically.By the measurement to water tower interior circulation coolant-temperature gage, The feedforward control that air curtain is adjusted to roller shutter is realized, circulating water temperature variation tendency is intervened in time, and then reach that cold-proof and control is followed Purpose of the ring coolant-temperature gage in optimum temperature range.
When water temperature drop, according to trend analysis, appropriate close adjusts air curtain, reduces air-admitting surface, when water temperature rises, fits Air curtain is adjusted when opening, increases air-admitting surface, so as to automatically adjust intake, cooling tower antifreezing effect is not only acted as, it is more important Be that control circulating water temperature is stable in setting range, improve turbine efficiency, unit is maintained at optimum condition economical operation. Through inspection information, and further investigate the flow behavior of recirculated water etc., with reference to the design feature of double-curve cooling column, analysis wind and water Wind-warm syndrome, wind direction, water temperature, the flow direction of the characteristics of motion and calculating physics each other in tower, what is occurred to cooling scene is various Phenomenon is analyzed, and finds out former control mode reason of problems, is targetedly developed a kind of control accurately, can be reached again Deep bead zero is damaged and personal zero accident, and can realize manual/auto control.
1. power drives motor, is slowed down by motor reducer, the sprocket wheel on output shaft drives chain to move and transmitted Onto main shaft, sprocket wheel drives main shaft rotation.Because deep bead, connection belt position are relatively fixed, main shaft rotates, transmission Connection belt drive deep bead makees follow-up motion, realizes that the deep bead in unit completes unlatching, closing motion.Motor is installed simultaneously Bottle gouard moved by hands, has a power failure also able to turn on or off, realizes operation flexibly, individually controllable.
2. in order to reach accurate Board position control of keeping out the wind, when every time mode of operation need to be changed because of change of the wind, all First make sheet reset zero of keeping out the wind.
Then the control of relevant work pattern is carried out.Avoid and occur controlling entanglement problem because of multiple change of the wind.
3. in order to realize 360 ° of controls of circumference, circumference is divided into 8 parts, i.e. south, north, east, west, the southeast, northwest, west Real-time wind direction signals are introduced PLC by south, northeast, wind direction, wind sensor, and the control sent after calculating to the direction is analyzed by PLC System instruction, makes deep bead formation air channel, and realization is automatically adjusted to circulating water temperature.
4. rationally circulating water temperature is added in systems and is monitored in order that control is more accurate, will by temperature sensor Water temperature signal introduces PLC, and when water temperature increases or reduces, PLC sends increase or reduces the instruction of deep bead opening angle, so that It ensure that circulating water temperature changes in the range of 20 °C of 0.5 °C of plus-minuss.
5. in order that operating personnel carry out micro adjustment, system according to wind direction and the change of water temperature and outdoor temperature to deep bead In add artificial parameter setting link, can significantly be carried to there is related parameter to carry out any adjustment by touch screen operation personnel The reliability of high system and the flexibility of control.
6. control operation system:
The unlatching of rolling curtain, close using three kinds of modes of operation, on the spot manually operated slide fastener, on the spot by starting, stop button behaviour Work, remote operation or Automatic Control.
Manually operated slide fastener on the spot:Slide fastener is turned on and off rolling curtain on the spot.
Push-botton operation on the spot:It is turned on and off on the spot provided with start button regulation rolling curtain.
Remote operation:
Operation can be accessed by DCS by cable, the aperture of rolling curtain can be adjusted in control room.Automatically adjusting to follow Ring coolant-temperature gage measuring point signal accesses PLC or DCS and realizes automatic regulation function according to the change of circulating water temperature, and regulating gradient is to follow 0.5 °C of regulation is raised and lowered once in ring coolant-temperature gage, fully achieves automatic water temperature tracking regulatory function.
Full-automatic regulation:The wind speed and environment temperature and circulating water temperature provided according to anemobiagraph is by PLC according to wind Fast signal determines that rolling curtain is opened, closes size, and whole process is entirely to be needed to realize automatic regulation function according to circulating water temperature.Together When by wind speed, wind direction, water temperature signal introduce touch-screen, operating personnel from screen on can monitor relevant parameter at a glance, enter The timely and effective control of row.

Claims (6)

1. a kind of roller shutter type cooling tower air intake self-checking device, it is characterized in that:In foundation of civil work(0)It is provided with upright of frame (3), on upright of frame top provided with sealing ceiling(1), electric adjustable air curtain is housed on upright of frame(2), foundation of civil work with Cooling tower(5)Between ring week be provided with the oblique column of cooling tower(4);
Electric adjustable air curtain is provided with cooling tower bottom, tower circulating water temperature sensor is provided with out in a side lower part of electric adjustable air curtain (9), and provided with wind direction sensor(8), go out tower circulating water temperature sensor and wind direction sensor respectively with PLC controls Device(7)Circuit is connected, PLC and remote controller(6)Circuit is connected;
The electric adjustable air curtain is roller shutter;
Operating method:
Rolling curtain formula system installs one in the peripheral air inlet of cooling tower using steel construction and encloses portal frame each two framework roller shutter peace A motor driving is filled, the electronic closing of roller shutter and unlatching is realized, by adjusting the tune air curtain of intake, system monitors circulation in real time Water condenser inlet water temperature;
Measured by wind speed and direction, regulation windward side and the actual incoming air area of lee face air inlet, make up crosswind pair in time in real time The influence of cooling tower radiating effect, keeps water tower flow field symmetrically, by the measurement to water tower interior circulation coolant-temperature gage, realizes The feedforward control of air curtain is adjusted to roller shutter, circulating water temperature variation tendency is intervened in time, and then reach cold-proof and control recirculated water Purpose of the temperature in optimum temperature range;
When water temperature drop, according to trend analysis, appropriate close adjusts air curtain, reduces air-admitting surface, when water temperature rises, suitably opens Tune air curtain is opened, increases air-admitting surface, so as to automatically adjust intake, cooling tower antifreezing effect is not only acted as, it is often more important that Control circulating water temperature stable in setting range, improve turbine efficiency, unit is maintained at optimum condition economical operation;
1), power drives motor, slowed down by motor reducer, sprocket wheel on output shaft drives chain to transmit motion to master On axle, sprocket wheel drives main shaft rotation;Because deep bead, connection belt position are relatively fixed, main shaft rotates, drive connection Belt drive deep bead makees follow-up motion, realizes that the deep bead in unit completes unlatching, closing motion, while motor installs manual Cucurbit, has a power failure also able to turn on or off, realizes operation flexibly, individually controllable;
2), in order to reach accurate Board position control of keeping out the wind, when every time mode of operation need to be changed because of change of the wind, all first make The sheet reset that keeps out the wind is zeroed;
3), in order to realize the control of 360 ° of circumference, circumference is divided into 8 parts, i.e. south, north, east, west, the southeast, northwest, southwest, east Real-time wind direction signals are introduced PLC by north, wind direction, wind sensor, and the control sent after calculating to the direction is analyzed by PLC and is referred to Order, makes deep bead formation air channel, and realization is automatically adjusted to circulating water temperature;
4), in order that control is more accurate rationally to add circulating water temperature monitoring in systems, by temperature sensor by water temperature Signal introduces PLC, and when water temperature increases or reduces, PLC sends increase or reduces the instruction of deep bead opening angle, so as to ensure Circulating water temperature changes in the range of 20 °C of plus-minuss 0.5 °C;
5), in order that operating personnel are carried out in micro adjustment, system according to wind direction and the change of water temperature and outdoor temperature to deep bead Artificial parameter setting link is added, can be to there is related parameter to carry out any adjustment by touch screen operation personnel;
6), control operation system.
2. a kind of roller shutter type cooling tower air intake self-checking device according to claim 1, it is characterized in that:Rolling curtain is opened Open, close using three kinds of modes of operation, on the spot manually operated slide fastener, on the spot by starting, stop button operation, remote operation or complete Automatically control.
3. a kind of roller shutter type cooling tower air intake self-checking device according to claim 1, it is characterized in that:Grasp manually on the spot Make slide fastener:Slide fastener is turned on and off rolling curtain on the spot.
4. a kind of roller shutter type cooling tower air intake self-checking device according to claim 1, it is characterized in that:Button is grasped on the spot Make:It is turned on and off on the spot provided with start button regulation rolling curtain.
5. a kind of roller shutter type cooling tower air intake self-checking device according to claim 1, it is characterized in that:Remote operation: Operation can be accessed by DCS by cable, the aperture of rolling curtain can be adjusted in control room;Automatically adjusting can be with recirculated water Temperature point signal access PLC or DCS realizes automatic regulation function according to the change of circulating water temperature, and regulating gradient is recirculated water 0.5 °C of regulation is raised and lowered once in temperature, fully achieves automatic water temperature tracking regulatory function.
6. a kind of roller shutter type cooling tower air intake self-checking device according to claim 1, it is characterized in that:It is full-automatic to adjust Section:The wind speed and environment temperature and circulating water temperature provided according to anemobiagraph determines rolling curtain by PLC according to wind velocity signal Open, close size, whole process is entirely to be needed to realize automatic regulation function according to circulating water temperature, while by wind speed, wind direction, water Warm signal introduces touch-screen, and operating personnel monitor relevant parameter from screen, carry out timely and effective control.
CN201710339202.2A 2017-05-15 2017-05-15 A kind of roller shutter type cooling tower air intake self-checking device Pending CN107152876A (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109163599A (en) * 2018-10-31 2019-01-08 上海大众祥源动力供应有限公司 A kind of cooling tower monitoring system and its application
CN110260678A (en) * 2019-05-29 2019-09-20 江苏意塔冷却技术有限公司 A kind of anti-white cigarette method of cooling tower and cooling tower with ventilation door
CN111457755A (en) * 2020-02-28 2020-07-28 河南信安工程技术有限公司 Comprehensive optimization energy-saving device for cold source of steam turbine
CN112212712A (en) * 2020-09-22 2021-01-12 东南大学 Temperature control method of wet cooling tower preheating type anti-freezing system
CN113503765A (en) * 2021-07-13 2021-10-15 张家港盈鼎气体有限公司 Automatic control method for water temperature of circulating water in winter
CN114111372A (en) * 2021-10-16 2022-03-01 沈阳工程学院 Anti-freezing and heat exchange optimization structure for natural ventilation cooling tower of thermal power plant

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CN102047822A (en) * 2010-10-14 2011-05-11 中农先飞(北京)农业工程技术有限公司 Greenhouse quilt rolling machine and operating method thereof
CN202442605U (en) * 2012-02-09 2012-09-19 辽宁赛沃斯节能技术有限公司 Energy-saving cold-proof system for follow-up soft rolling curtain of cooling tower
CN203432455U (en) * 2013-09-10 2014-02-12 辽宁龙电伟业新能科技有限公司 Automatic circulating water temperature regulation device
CN104615034A (en) * 2014-12-10 2015-05-13 绵阳青山森腾信息科技有限公司 Remote control system convenient for automatic control of greenhouse roller shutter

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Publication number Priority date Publication date Assignee Title
US6092582A (en) * 1999-03-10 2000-07-25 Liu; Kuei-Chang Motor drive for an electric rolling steel door
CN102047822A (en) * 2010-10-14 2011-05-11 中农先飞(北京)农业工程技术有限公司 Greenhouse quilt rolling machine and operating method thereof
CN202442605U (en) * 2012-02-09 2012-09-19 辽宁赛沃斯节能技术有限公司 Energy-saving cold-proof system for follow-up soft rolling curtain of cooling tower
CN203432455U (en) * 2013-09-10 2014-02-12 辽宁龙电伟业新能科技有限公司 Automatic circulating water temperature regulation device
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109163599A (en) * 2018-10-31 2019-01-08 上海大众祥源动力供应有限公司 A kind of cooling tower monitoring system and its application
CN110260678A (en) * 2019-05-29 2019-09-20 江苏意塔冷却技术有限公司 A kind of anti-white cigarette method of cooling tower and cooling tower with ventilation door
CN111457755A (en) * 2020-02-28 2020-07-28 河南信安工程技术有限公司 Comprehensive optimization energy-saving device for cold source of steam turbine
CN112212712A (en) * 2020-09-22 2021-01-12 东南大学 Temperature control method of wet cooling tower preheating type anti-freezing system
CN112212712B (en) * 2020-09-22 2022-03-04 东南大学 Temperature control method of wet cooling tower preheating type anti-freezing system
CN113503765A (en) * 2021-07-13 2021-10-15 张家港盈鼎气体有限公司 Automatic control method for water temperature of circulating water in winter
CN114111372A (en) * 2021-10-16 2022-03-01 沈阳工程学院 Anti-freezing and heat exchange optimization structure for natural ventilation cooling tower of thermal power plant
CN114111372B (en) * 2021-10-16 2023-09-22 沈阳工程学院 Thermal power plant's natural draft cooling tower prevents frostbite and heat transfer optimization structure

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