CN107401932A - A kind of hydraulic turbine drive type intelligent atomizing cooling tower - Google Patents
A kind of hydraulic turbine drive type intelligent atomizing cooling tower Download PDFInfo
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- CN107401932A CN107401932A CN201710836806.8A CN201710836806A CN107401932A CN 107401932 A CN107401932 A CN 107401932A CN 201710836806 A CN201710836806 A CN 201710836806A CN 107401932 A CN107401932 A CN 107401932A
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- 238000001816 cooling Methods 0.000 title claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 276
- 238000000889 atomisation Methods 0.000 claims abstract description 66
- 239000007921 spray Substances 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 230000000694 effects Effects 0.000 claims description 17
- 239000000523 sample Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 239000003595 mist Substances 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007405 data analysis Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of hydraulic turbine drive type intelligent atomizing cooling tower, including tower body, the atomization unit that is arranged in tower body and intelligence control system, tower body arrange water inlet pipe and outlet pipe；Atomization unit includes drive device and sprayer unit；Drive device includes the hydraulic turbine of driving fan blade rotation and blows the fan blade of water droplets, and the hydraulic turbine is provided with runner shaft, hydroturbine water intake end and hydraulic turbine outlet pipe, and hydroturbine water intake end hydraulic drives runner shaft rotates and drives fan blade to rotate；Hydroturbine water intake end connects water inlet pipe, and hydraulic turbine outlet pipe is connected with sprayer unit；Sprayer unit includes atomization water inlet pipe and atomizer, atomization water inlet pipe one end connection hydraulic turbine outlet pipe, and cocurrent enters to flow through the hydraulic turbine and the water rich in overbottom pressure, other end connection atomizer, and atomizer sprays and generates water droplets upward；Atomization unit connects same water inlet pipe and is distributed in tower body；Intelligence control system is controlled from spraying of the PLC automatic control system to each atomization unit.
Description
Technical field
The present invention relates to field of cooling tower, more particularly to a kind of hydraulic turbine drive type intelligent atomizing cooling tower.
Background technology
Industrial cycle water cooling tower organic tool aerating and cooling tower, cooling stack and spray cooling tower.Misting cooling
Tower uses upper spraying type spraying ventilation atomising device, eliminates the filler part of cooling tower, whole tower is almost turned into " a sky
Tower ", reduce the resistance in tower；And hydro powered is utilized, low pressure water flow produces spray, the work of spray by rotational flow atomized spray injector
Firmly start sealed driving mechanism and fan blade reversely rotates, cold wind enters the water droplets with atomized flow vaporific from air inlet
Under the conditions of carry out heat exchange, to obtain expected cooling-down effect, output investment ratio standard machinery leads to spray cooling tower in theory
Cooling Tower will lack, and particularly the cooling tower with spray propulsion reduces motor driving, be mounted with water collection device, and economize on electricity saves again
Water；But the spray cooling tower in actually using has the following disadvantages：One, due to the unstability of circulation operation, cause
Hydraulic pressure head into cooling tower is too low so that sprayer unit spray effect is undesirable；Two, thrust caused by spraying is not enough to protect
The quick rotation of card device, operation is difficult, can not ensure the rotation ventilation of fan blade；Three, quality problem, easily cause nozzle to block up
Plug, it is inconvenient to safeguard；Four, because the rotating speed of fan blade reduces, air quantity is small do not reach in principle air quantity required for cooling and
Gas-water ratio, cooling are limited；Five, lack the low pressure, big flow, the atomization loading amount of big runner of function admirable, spray effect it is good with not
This contradiction is easily blocked to be difficult to overcome.
In addition, at present most standard machinery aerating and cooling towers using motor driving blower fan make cooling tower forced ventilation with
Low-temperature water heating is cooled by filler heat exchange；Existing atomizing cooling tower drives atomization propulsion plant by recirculated water pressure of return water
Rotating-spray atomized flow cools with cold wind heat exchange；Control gimmick single, essentially by adjustment exit of pump valve or circulation
Water pressure of return water controls, and can not investigate the cooling data inside cooling tower.In actual applications, control accuracy is low, Wu Fajing
Standard controls flow to adjust temperature control, therefore electric power and water still have greater loss waste.
The content of the invention
To solve the above problems, the invention provides a kind of simple in construction, installation, maintenance convenience；When power surplus is inadequate
Pressure charging system can be automatically adjusted and improve atomizing effect, and the cooling tower of energy-saving and water-saving.
To achieve the above object, a kind of hydraulic turbine drive type intelligent atomizing cooling tower of the invention, using following technical side
Case：Including tower body, the atomization unit being arranged in tower body and intelligence control system, the tower body arranges water inlet pipe and outlet pipe；
The atomization unit includes drive device and sprayer unit；The drive device includes the water wheels of driving fan blade rotation
Machine and the fan blade for blowing water droplets, the hydraulic turbine are provided with runner shaft, hydroturbine water intake end and hydraulic turbine outlet pipe, the water
Runner shaft described in turbine water inlet end hydraulic drives rotates and drives fan blade to rotate；The hydroturbine water intake end connects the water inlet
Pipe, the hydraulic turbine outlet pipe are connected with the sprayer unit；
The sprayer unit includes atomization water inlet pipe and atomizer, and described atomization water inlet pipe one end connects the hydraulic turbine
Outlet pipe, cocurrent enter to flow through the hydraulic turbine and the water rich in overbottom pressure, and the other end connects the atomizer, and the atomizer is upward
Spray and generate water droplets；
The atomization unit is provided with several, and some atomization units connect same water inlet pipe and are distributed in tower body；
Intelligence control system is additionally provided with, the intelligence control system selects PLC automatic control system, passes through the sensing of arranging
Device and freq uency conversion supercharging device realize that the spraying to each atomization unit is controlled and then regulates and controls cooling effect.
Preferred scheme is：The jet space of atomizer is reserved in the tower body, the tower body top is equipped with water collection device；
Or, the tower body inwall is surrounded by drip water plate, the drip water plate upper end connects water collection device, and the tower body lower end is set
There is air inlet, the drip water plate is located at the upper limb of the air inlet.
Preferred scheme is：It is additionally provided with the steel bracket and supports the atomization unit；
Or, the tower body lower end connection pond, from the pond pass-out, the steel bracket is installed in described the outlet pipe
On pond；
Or, the air inlet is arranged on tower body lower end；
Or, the air inlet arranges induced-draft plate, the induced-draft plate air inducing towards blowing in tower body upwards.
Preferred scheme is：The water inlet pipe is provided with temperature sensor, and the hydroturbine water intake end is equipped with branch road certainly
Movable valve is used to control the current into hydroturbine water intake end；The outlet pipe is provided with leaving water temperature sensors and is used to detect
Coolant-temperature gage；
Each atomization unit individually arranges flow sensor, pressure sensor, freq uency conversion supercharging device and speed probe, described
Flow sensor, pressure sensor are arranged on the hydroturbine water intake end, and the freq uency conversion supercharging device is arranged on the hydraulic turbine
Water inlet end or water side be used to control the current into the hydraulic turbine, the speed probe coordinates the runner shaft to be provided for
Supervise the rotating speed of fan blade；
The intelligence control system arranges control main frame PLC, the temperature sensor, flow sensor, pressure sensor,
Freq uency conversion supercharging device connects the control main frame PLC with speed probe by real-time Data Transmission, and the control main frame PLC leads to
Cross data analysis and data regulation automatically controls the operation of each atomization unit.
Preferred scheme is：The hydroturbine water intake end connects hydroturbine water intake pipe, and each hydroturbine water intake pipe is entered by branch road
Water pipe connects water inlet pipe, and the branch road automatic valve is arranged on the branch road water inlet pipe.
Preferred scheme is：The hydroturbine water intake end also connects bypass water inlet pipe, and the bypass water inlet pipe is by bypassing certainly
Movable valve connects with water inlet pipe；
Or, the bypass water inlet pipe connects some hydraulic turbine bypass water inlet pipes, the hydraulic turbine bypass water inlet pipe connection institute
State hydroturbine water intake end.
Preferred scheme is：The control main frame PLC and the temperature sensor, flow sensor, pressure sensor, frequency conversion
Supercharging device is connected with the link of speed probe from RS-485 serial bus communications；
Or, the freq uency conversion supercharging device includes booster water pump, the booster water pump is equipped with frequency converter.
Preferred scheme is：The atomization water inlet pipe connects several atomization water-locator pipelines, the atomization water-locator pipeline
It is provided with several atomizers；
Or, the atomization push unit is provided with multiple, each fan blade outer ring setting Inner air duct guide plates.
Preferred scheme is：The tower body from cone or hyperbola or cylinder or polygon or it is square or
Cement tower or steelframe shape or glass steel tower；
Or, the tower body top is provided with outlet air port grid；Or, the tower body top is provided with air duct, the air duct top
Provided with outlet air port grid.
Beneficial effects of the present invention are：
One, a kind of intelligent atomizing cooling tower of water turbine equipment of the invention, cooling is removed in mechanical-draft cooling tower
Inner-tower filling material part, whole tower is almost turned into one " void tower ", reduce the resistance in tower；And utilize the hydro powered hydraulic turbine
Drive fan blade to rotate at a high speed, produce upward air quantity, and be provided with what is be atomized water-locator branch pipe and be atomized upwards in fan blade upper end
Atomizer so that Wind Volume and the abundant contact heat-exchanging of water droplets, increase gas-water ratio；
Two, supercharging equipment is installed on sprayer unit water inlet pipe or hydroturbine water intake end and arranged by cooling tower
Intelligent monitor system, make recirculated water under any production status and any low-head run when, the normal of the hydraulic turbine can be ensured
Pressure head needed for operation, especially, when the hypotony of the recirculated water, it can cause that rotational speed of water turbine is too low, and ventilation subtracts
Less and atomizer can not be atomized, and can not produce vaporific atomized flow, can more cause cooling tower can not cool or cool it is undesirable；Intelligence
Energy control system gives control main frame PLC by the data feedback of pressure sensor and temperature sensor, and through data analysis and is
The low pressure hot water of pipeline is pressurized by freq uency conversion supercharging device after balance adjustment of uniting, to meet each hydraulic turbine in any production status
Under can by normal operation under design situation, and ensure nozzle produce atomization atomized flow service requirement so that cooling tower reaches
To the requirement normally to cool；The intelligence control system is thoroughly solved when circulation is in drive device or sprayer unit
Water pressure it is ultralow when, the cooling down requirement of cooling tower can be met, and by analyze data, can be from according to the water temperature of cooling tower
Dynamic regulation pressure charging system, reasonable adjusting circulating head, reduces power consumption；It is serially total from RS-485 by intelligent monitor system
Line communicates, reasonable analysis atomization push unit whether normal operation, whether faulty, the problems such as blocking, reduce to cooling tower
The difficulty of maintenance, improve the efficiency of maintenance, in actual use the maintenance of cooling tower be more convenient.
Three, the low pressure hot water flows into hydraulic turbine acting by water inlet pipe and drives fan blade to rotate, and produces upward air quantity, water
Turbine can leave the overbottom pressure of a part after water potential energy changes into mechanical energy, and low pressure hot water is by hydraulic turbine outlet pipe, through atomization
Water inlet pipe and atomization water-locator branch pipe eject upward atomized flow from atomizer and carry out heat exchange with mist and cold wind,
The heat of hot water is taken away in the cold wind humidification gain of heat；And eject upward a part of water smoke by atomizer and promoted in cold wind and rose
Cheng Zhong, form large water drop by water collection device and drip water plate and down fall, and with air inlet enter cold wind it is secondary contact, increase
Time of contact and the contact area of recirculated water and cold wind, the secondary heat exchange cooling of recirculated water is realized, can further improve and follow
The cooling effect of ring water；And another part atomized water passes through with damp and hot air after the water collection device that tower body top is set receives water
Outside the grid discharge tower of gas outlet, part the heat of hot water is taken away.
Four, the recirculated water flows into hydraulic turbine acting by water inlet pipe in the form of low pressure hot water and drives fan blade to rotate, and produces
Upward air quantity, reach the effect of cooling, and atomization unit is arranged in tower body in the present invention, and atomization is reserved with tower body
The jet space of shower nozzle so that water droplets realize heat exchange cooling in tower body, and are recovered to by water collection device and drip water plate
In pond, on the one hand reduce standard machinery aerating and cooling tower blower fan because of strong drawing and caused by cooling tower float water, it is another
Aspect cancels the blower motor of standard machinery aerating and cooling tower using hydraulic turbine driving fan, has reached the purpose of water-saving and electricity-saving.
Five, auxiliary water inlet pipe of the water pipe as hydroturbine water intake is bypassed in of the invention, when the pressure of return water of recirculated water is enough
When meeting hydraulic turbine high-speed cruising and nozzle atomization, intelligence control system is passed by pressure sensor, temperature sensor and flow
The data of sensor feed back to control main frame PLC by the transmission of RS-485 universal serial bus, and controlling brancher automatic valve is closed automatically,
Bypass automatic valve is opened, is supplied water to the hydraulic turbine and ensures the normal operation of the hydraulic turbine and the atomization demand of atomizer, is met
The cooling requirement of cooling tower, rationally make use of the power surplus of recirculated water, so as to reach the purpose of 100% economize on electricity and water saving；
Six, cooling tower structure of the invention is simple, and installation, repacking are convenient, suitable for from new foundation and installation, being also applied for existing
There is the repacking of cooling tower, to the adaptable of various tower bodies, use easy to spread.
Brief description of the drawings
Fig. 1 is the cut away view of the cooling tower of embodiment 1；
Fig. 2 is the top view of the cooling tower of embodiment 1；
Fig. 3 is the partial cross sectional views of the drive device of embodiment 1；
Fig. 4 is the partial cross sectional views of the hydraulic turbine of embodiment 1；
Fig. 5 is the partial cross sectional views of the hydraulic turbine outlet pipe of embodiment 1；
Fig. 6 is the atomising device top view of embodiment 1；
Fig. 7 is the intelligence control system control method flow chart of embodiment 1
Embodiment
Embodiment 1:
Hydraulic turbine drive type intelligent atomizing cooling tower as shown in figs 1 to 6, including tower body 1, the mist that is arranged in tower body 1
Change unit and intelligence control system, the tower body 1 are passed through water inlet pipe 4 and are equipped with outlet pipe 5；The atomization unit includes driving
Device and sprayer unit；The drive device includes blowing the hydraulic turbine 28 that the fan blade 7 of water droplets and driving fan blade 7 rotate,
The hydraulic turbine 28 is provided with runner shaft 29, hydroturbine water intake end and hydraulic turbine outlet pipe 23, and the hydroturbine water intake end driving turns
Wheel shaft 29 rotates and drives fan blade 7 to rotate, and the hydroturbine water intake end connects the water inlet pipe 4, the hydraulic turbine outlet pipe 23
It is connected with the sprayer unit；The atomising device includes atomization water inlet pipe 19 and atomizer 9, the atomization water inlet pipe 19 1
End connects the hydraulic turbine outlet pipe 23, and cocurrent enters to flow through the hydraulic turbine and the water rich in overbottom pressure, the other end connection atomization spray
First 9, the atomizer 9 sprays generation water droplets using overbottom pressure upward.
The atomization water inlet pipe 19 connects several atomization water-locator pipelines 25, and the atomization water-locator pipeline 25 is provided with
Several atomizers 9.
The atomization unit quantity optionally designs according to the number of cooling-tower circulating water amount, in the present embodiment, the mist
Change unit and be provided with several (being cloth 36 actually in case, divide 4 areas, each 9, area), this several atomization unit is set
Put in tower body 1, the jet space 110 of atomizer 9 is reserved in the tower body 1, and the outer ring of each fan blade 7 sets Inner air ducts to be oriented to
Plate 10 is described to guide the wind of fan blade 7 water droplets to be blowed into jet space 110 and realize cold and hot exchange to the atomizer 9
The top of tower body 1 is equipped with water collection device 2, and the water collection device 2 is double-deck water collection device；The inwall surrounding of tower body 1 is furnished with drip water plate
21, the drip water plate upper end connects water collection device 2, and the lower end of tower body 1, which is provided with, coordinates the air inlet 6 of drip water plate 21, the drip water plate
21 are located at the upper limb of the air inlet 6.
It is additionally provided with the steel bracket 18 to be used to support the tower body 1 and the atomization unit, the lower end of tower body 1 connects water
Pond 20, water droplets are changed with the cold wind through entering from air inlet 6 exchange after and collect through the water collection device 2 and the drip water plate 21
The pond 20 is fallen into, the outlet pipe 5 is installed on the pond 20 from the pass-out of pond 20, the steel bracket 18.
The lower end side of tower body 1, which is provided with, coordinates the air inlet 6 of drip water plate 21, and the air inlet 6 is centered around the steel bracket
18 periphery, the air inlet arrange induced-draft plate 22, the cold wind that the induced-draft plate 22 introduces and towards in tower body 1 obliquely upward
Blow, reduce air intake resistance, increase the air quantity of fan blade 7.
Intelligence control system is additionally provided with, the intelligence control system selects PLC automatic control system, passes through the sensing of arranging
Device and freq uency conversion supercharging device realize the spraying control to each atomization unit, and then optimal cooling effect.
The water inlet pipe is provided with temperature sensor 121, and the hydroturbine water intake end is equipped with branch road automatic valve 131 and used
Water in control into hydroturbine water intake end；The outlet pipe is provided with leaving water temperature sensors 122 and is used to detect through cooling
The water temperature of tower cooler, to detect the cooling effect of cooling tower；
The hydroturbine water intake end connection hydroturbine water intake pipe 24, several hydraulic turbines 28 are each via hydroturbine water intake pipe
24 connection branch road water inlet pipe 14-1 connection water inlet pipes 4, and the branch road water inlet pipe 14-1 is provided with the branch road automatic valve 13-
1。
The hydroturbine water intake end also connects bypass water inlet pipe 14-2, several 28 respective water inlet ends of hydraulic turbine connection water
Turbine bypasses water inlet pipe 27, and several hydraulic turbines bypass water inlet pipe 27 is all connected with the bypass water inlet pipe 14-2, bypassed
The bypass automatic valve 132 set on water inlet pipe 14-2 connects with the water inlet pipe 4；
The bypass water inlet pipe 14-2 and branch road water inlet pipe 14-1 is arranged on the top of steel bracket 18.
Several atomization units are all individually equipped with pressure sensor 15, flow sensor 17, the and of freq uency conversion supercharging device 16
Speed probe 8, the flow sensor 17 and pressure sensor 15 are arranged on the hydroturbine water intake pipe 24, the frequency conversion
Supercharging device 16, which is arranged on, is used for the current for controlling hydroturbine water intake end, the speed probe on the hydraulic turbine outlet pipe 23
The 8 cooperation runner shafts 29 are provided for supervising the rotating speed of fan blade 7.
The intelligence control system arranges control main frame PLC, is increased by pressure sensor 15, flow sensor 17, frequency conversion
Pressure device 16, speed probe 8, water inlet pipe temperature sensor 1 and outlet pipe temperature sensor 122, obtain the data of current, institute
State pressure sensor 15, flow sensor 17, freq uency conversion supercharging device 16, speed probe 8, water inlet pipe temperature sensor 1 and go out
Water pipe temperature sensor 122 is connected with the link of the control main frame PLC from RS-485 serial bus communications, the control master
Machine PLC is connected by real-time communication, then the operation of each atomization unit is automatically controlled by data analysis and data regulation, so as to real
The optimal cooling effect of existing cooling tower.
Tower body 1 described in the present embodiment selects square steelframe shape tower, and the top of tower body 1 is provided with outlet air port grid 3.
9 hydroturbine water intake pipes 24 are connected with described in the present embodiment on branch road water inlet pipe 141；The hydroturbine water intake pipe 24
On freq uency conversion supercharging device 16, pressure sensor 15, flow sensor 17 are installed and are connected with the hydraulic turbine 28, the hydraulic turbine 28 turns
Fan blade 7 and speed probe 8 are installed on wheel shaft 29；Be connected with the bypass water pipe bypass automatic valve 131 and with it is several
The hydraulic turbine 28 is connected；Each hydraulic turbine outlet pipe 23 is connected with being respectively connected with atomization water inlet pipe 19；It is atomized water inlet pipe
19 each comfortable exits arrange several atomization water-locator pipelines 25, and each bar atomization water-locator pipeline 25 is separately installed with several
Atomizer 9, the outer ring of water wheels machine blade 7 are provided with interior air duct guide plate 10 and guided for the wind direction of fan blade 7.
The present invention using atomizer 9 realize cooling down on the basis of, be also provided with the second cooling structure to increase
The strong effect that cools.Second cooling structure is drip water plate 21, air-inlet window 6, and drip water plate 21 is located at the upper of air inlet 6
Edge, and be connected with top water collection device 2；Hot water is after atomizer 9 is atomized and carries out heat exchange cooling down with cold wind, part
Water smoke is flowed down after encountering water collection device upwards by drip water plate 21, and the cold and hot exchange in water drenching hole through drip water plate 21, reaches secondary drop
The effect of temperature cooling.
Current most standard machinery aerating and cooling towers make cooling tower forced ventilation and low temperature using motor driving blower fan
Hot water is cooled by filler heat exchange；Existing atomizing cooling tower drives atomization propulsion plant to rotate by recirculated water pressure of return water
Jet atomization stream cools with cold wind heat exchange；Control gimmick single, returned essentially by adjustment exit of pump valve or recirculated water
Water pressure controls, and can not investigate the cooling data inside cooling tower.In actual applications, control accuracy is low, can not precisely flow
Amount regulation temperature control, therefore still have greater loss waste.And single main pipeline of the prior art divide into the system some
Individual atomization unit is controlled, and control core is using control main frame PLC and is equipped with the pressure sensor 15, flow sensor
17th, speed probe 8, water inlet pipe temperature sensor 1 and outlet pipe temperature sensor 122 and freq uency conversion supercharging device 16, each mist
Change unit and be individually provided with drive device, each drive device is separately provided supercharging device, flow sensor, pressure sensor and turned
Fast sensor, the choosing of freq uency conversion supercharging device 16 include booster water pump, and each booster water pump is individually equipped with frequency converter.In order to avoid
The a large amount of wiring constructions in classical control system scene it is cumbersome, the system is from control main frame PLC to the pressure sensor, the stream
Quantity sensor, the link for addressing temperature sensor and the freq uency conversion supercharging device are serial using the RS-485 of current technology maturation
Bus mode, in-site installation efficiency, easy to maintenance in actual applications is not only increased, and also save substantial amounts of scene and apply
Work spool material.
As an alternative solution：
One, the top of the tower body 1 in the present embodiment is provided with air duct 3, and the top of air duct 3 is provided with outlet air port grid
31；
Two, the tower body 1 in the present embodiment can use cone, hyperbola, polygon, square, cement tower, steel frame type,
The newly-built or transformation of glass steel tower etc.；
Three, aerosolizable unit multi-layer arrangement in the cooling tower in the present embodiment.
The present embodiment collects, and the low pressure hot water flows into the acting of the hydraulic turbine 28 by water inlet pipe 4 and drives fan blade 7 to rotate, and produces
Raw upward air quantity；The design hydraulic turbine 28 can leave the overbottom pressure of a part after water potential energy converts mechanical energy, and low pressure hot water passes through
Hydraulic turbine outlet pipe 24, through be atomized water distributor branch pipe 25 and atomizer 9 eject upward atomized flow with mist with it is cold
Wind carries out heat exchange；The heat of hot water is taken away in the cold wind humidification gain of heat, and a part of water smoke forms big in cold wind promotes uphill process
The globule down falls, and contact heat-exchanging secondary with cold wind cools, and another part atomized water passes through the receipts of tower top with damp and hot air
Hydrophone is discharged outside tower after receiving water by gas outlet grid, reaches the effect of cooling.Due to eliminating standard machinery aerating and cooling tower
Motor fan, and reduce the water that floats of cooling tower, reached the purpose of water-saving and electricity-saving.
During the hypotony of the recirculated water, rotational speed of water turbine can be caused too low, ventilation is reduced and atomizer 9 can not
Atomization, can not produce vaporific atomized flow, can more cause cooling tower can not cool or cool it is undesirable；Intelligence control system passes through
The data feedback of RS-485 serial bus transmissions pressure sensor and temperature sensor gives control main frame PLC, and through data analysis
And the low pressure hot water of pipeline is pressurized by frequency-conversionbooster booster water pump after system balancing regulation, to meet each hydraulic turbine in any production
Can be by normal operation under design situation under operating mode, and ensure that atomizer produces the service requirement of atomized flow, so that cooling
Tower reaches the requirement normally to cool；The intelligent control method thoroughly solves pressure of return water of the circulation under any situation
When ultralow, meet the cooling requirement of cooling tower.
When the pressure of return water of circulating hot water meets hydraulic turbine high-speed cruising enough and atomizer is atomized, intelligent control system
System is led the data feedback of pressure sensor, temperature sensor and flow sensor to control by RS-485 serial bus communications
Machine PLC, controlling brancher automatic valve are closed automatically, are opened bypass automatic valve, are supplied water to the hydraulic turbine and ensure the hydraulic turbine just
Often operation and atomizer atomization, meet the cooling requirement of cooling tower, rationally make use of the power surplus of recirculated water, so as to reach
100% economize on electricity and the purpose of water saving.
Case：Certain circulation has the cooling tower that specified water process amount is 3500m3/h, and cooling tower water inlet height is 10
Rice, cooling tower air inlet top is high 5 meters, and backwater pressure head is 19 meters before cooling tower valve, the matched with blower motor work(of cooling tower fan blade
Rate is 160kW, air quantity 273 × 104m3/ h, density of moist air 1.1358kg/m3.Blower fan of cooling tower actual motion power is
140.7kW, cooling tower actual motion flow are 3600m3/h.System water supplement amount is 70m3/h。
1st, system power surplus is calculated by formula P=ρ × g × 3600 × η of Q × H ÷, the power surplus of system
Much smaller than the power needed for blower fan of cooling tower, pure water turbine can not be used to drive, water-electric combination drive, but cooling tower need to be used
Water of floaing is too high can not still to be solved.
2nd, solving the problems, such as cooling tower invisible waste electricity using the hydraulic turbine drive type intelligent atomizing cooling tower in the present invention
Reduce cooling tower simultaneously to float water.Given and supplemented using Intelligent pressure unit while power surplus deficiency, system is had more than needed
Energy is fully utilized.Implementation process is as follows：
(1) hydraulic turbine drive type intelligent atomizing cooling tower is arranged in cooling tower using modular combination mode.Recirculated water
Pressure head needed for atomising device is 5 meters, and the water wheels compressing head needed for hydraulic turbine drive type intelligent atomizing cooling tower is actual rich by system
Overbottom pressure head situation subtracts the pressure head needed for atomising device, and the minimum design head of the hydraulic turbine is based on 10 meters, such as hydraulic turbine actual ram
Less than 10 meters, then supplied using freq uency conversion supercharging device, the hydraulic turbine, freq uency conversion supercharging device place are then bypassed to higher than 10 meters
Branch road water inlet pipe close.The single atomization push unit of this project presses 100m3/ h is designed, and specific flow can increase according to actual conditions
Subtract.
Hydraulic turbine actual design pressure head=system return pressure head-hydraulic turbine drive type intelligent atomizing cooling tower-atomising device
Required pressure head, such as hydraulic turbine actual design pressure head >=10 meter, then designed by actual ram；Such as hydraulic turbine actual design pressure head ＜ 10
Rice, then supplied by supercharging device, by 10 meters of designs.
(2) this project hydraulic turbine -5 meters of pressure head=19 meter -6 meter=8 meter more than needed
19 meters：For backwater pressure head；
6 meters：Hydraulic turbine atomising device setting height(from bottom), it is installed on 1 meter of air inlet top right position；
5 meters：Pressure head needed for hydraulic turbine atomising device；
Because hydraulic turbine pressure head of having more than needed only has 8 meters, 10 meters are supplied using freq uency conversion supercharging device,
The actual acting P=ρ × g of the hydraulic turbine × 3600 × η of Q × H ÷The hydraulic turbine
=1.0 × 103× 9.81 × 100 × 10 ÷ 3600 × 88%
=2.398kW
ρ：For the density (1.0 × 10 of water3kg/m3)；
g：For acceleration of gravity (9.81m2/s)；
H：For pressure head (m) more than needed can be used in system；
η：Turbine efficiency (%)
(3) to make cooling tower play preferable cooling-down effect, hydraulic turbine drive type intelligent atomizing cooling tower gas-water ratio presses 1.3
Design, and the air quantity and blast of fan blade are rotated by the gas-water ratio design hydraulic turbine, according to air quantity, blast and the Design of Rotation of reality
Select the blower fan needed for fan blade.It can specifically be calculated by below equation：
Gas-water ratio=enter tower MAF QGas m÷ enters the mass flow Q of tower waterWater
Enter tower air mass flow QGas=enter tower MAF QGas m÷ density of moist air ρ mm
QGas m：Enter tower MAF (kg/s)
QWater：Enter the mass flow (kg/s) of tower water
QGas：Enter tower air mass flow, i.e. air quantity (m3/h)
ρm：Density of moist air (kg/m3)
Because the blower fan of fan blade is directly driven by the hydraulic turbine, rotation speed of fan is identical with rotational speed of water turbine, the hydraulic turbine it is defeated
Go out the input power that power is blower fan, so the fan pressure of fan blade can be drawn by power of fan formula inverse, i.e.,：
The fan pressure of fan blade=× 3600 × 1000 × η of hydraulic turbine actingBlower fan÷ air quantity QGas
Blast unit:Pa
The hydraulic turbine does the unit of work：kW
Air quantity QGasUnit：m3/h
Hydraulic turbine drive type intelligent atomizing cooling tower gas is designed by the calculating to system capacity, and according to calculated case
Water, including the blower fan of the hydraulic turbine, fan blade, atomising device, control system etc..By to actual operating data before and after Revamping Cooling Tower
Test, economize on electricity after Revamping Cooling Tower up to 76.7%, water saving also has more than 20%.Refer to following table:
Cooling tower service data contrasts before and after transformation
The techno-economic effect of the present invention is as follows：
The present invention compared with prior art, has advantages below and effect：Simple in construction, installation, maintenance is convenient；Energy more than needed
Pressure charging system thrust can be automatically adjusted when measuring inadequate；The power surplus of factory is fully utilized, does not cause to waste.
As a result of intelligence control system and freq uency conversion supercharging device regulation pressure, recirculated water is realized under any circumstance
System call interception and production status under the low pressure that is occurred can meet to run；And pass through cooling tower cooling air volume and cooling water
The gas-water ratio of amount, using forward arranging, water has two cooling procedures of following current and adverse current in tower, and part mist droplet is on tower
Portion is in suspended state, so as to extend residence time of the water in tower, sufficiently ensure that the time of heat exchange, as a result of
Interior air duct guide plate, sieve plate (net) water drenching, double-deck water collection device, realizes economize on electricity, water saving, noise reduction, reduces process recycled water
The intelligent atomizing cooling tower of operating cost, positive effect, therefore a kind of water turbine equipment should be the replacement production of existing cooling tower
Product.
The above described in this specification is only illustration made for the present invention.Affiliated skill in the present invention
The technical staff in art field can make various modifications or supplement or using similar to described specific implementation case
Mode substitutes, and content without departing from specification in the present invention or surmounts scope defined in the claims, all should
The protection domain belonged in the present invention.
Claims (9)
- A kind of 1. hydraulic turbine drive type intelligent atomizing cooling tower, it is characterised in that：Including tower body, the atomization list being arranged in tower body Member and intelligence control system, the tower body arrange water inlet pipe and outlet pipe；The atomization unit includes drive device and sprayer unit；The drive device include driving fan blade rotation the hydraulic turbine and The fan blade of water droplets is blowed, the hydraulic turbine is provided with runner shaft, hydroturbine water intake end and hydraulic turbine outlet pipe, the hydraulic turbine Runner shaft described in water inlet end hydraulic drives rotates and drives fan blade to rotate；The hydroturbine water intake end connects the water inlet pipe, institute Hydraulic turbine outlet pipe is stated with the sprayer unit to be connected；The sprayer unit includes atomization water inlet pipe and atomizer, and described atomization water inlet pipe one end connects the hydraulic turbine water outlet Pipe, cocurrent enter to flow through the hydraulic turbine and the water rich in overbottom pressure, and the other end connects the atomizer, and the atomizer sprays upward And generate water droplets；The atomization unit is provided with several, and some atomization units connect same water inlet pipe and are distributed in tower body；Be additionally provided with intelligence control system, the intelligence control system selects PLC automatic control system, by the sensor of arranging and Freq uency conversion supercharging device realizes that the spraying to each atomization unit is controlled and then regulates and controls cooling effect.
- A kind of 2. hydraulic turbine drive type intelligent atomizing cooling tower as claimed in claim 1, it is characterised in that：It is pre- in the tower body The jet space of atomizer is stayed, the tower body top is equipped with water collection device；Or, the tower body inwall is surrounded by drip water plate, the drip water plate upper end connects water collection device, the tower body lower end be provided with into Air port, the drip water plate are located at the upper limb of the air inlet.
- A kind of 3. hydraulic turbine drive type intelligent atomizing cooling tower as claimed in claim 2, it is characterised in that：It is additionally provided with the steel Support supports the atomization unit；Or, the tower body lower end connection pond, the outlet pipe are installed in the pond from the pond pass-out, the steel bracket On；Or, the air inlet is arranged on tower body lower end；Or, the air inlet arranges induced-draft plate, the induced-draft plate air inducing towards blowing in tower body upwards.
- A kind of 4. hydraulic turbine drive type intelligent atomizing cooling tower as claimed in claim 1, it is characterised in that：The water inlet pipe is set Have a temperature sensor, the hydroturbine water intake end be equipped with branch road automatic valve be used for control enter hydroturbine water intake end Current；The outlet pipe is provided with leaving water temperature sensors and is used to detect leaving water temperature；Each atomization unit individually arranges flow sensor, pressure sensor, freq uency conversion supercharging device and speed probe, the flow Sensor, pressure sensor are arranged on the hydroturbine water intake end, and the freq uency conversion supercharging device is arranged on entering for the hydraulic turbine Water end (W.E.) or water side are used for the current for controlling hydroturbine water intake end, and the speed probe coordinates the runner shaft to be provided for supervising The rotating speed of manage-style leaf；The intelligence control system arranges control main frame PLC, the temperature sensor, flow sensor, pressure sensor, frequency conversion Supercharging device connects the control main frame PLC with speed probe by real-time Data Transmission, and the control main frame PLC passes through number The operation of each atomization unit is automatically controlled according to analysis and data regulation.
- A kind of 5. hydraulic turbine drive type intelligent atomizing cooling tower as claimed in claim 4, it is characterised in that：The hydraulic turbine enters Water end (W.E.) connects hydroturbine water intake pipe, and each hydroturbine water intake pipe connects water inlet pipe, the branch road automatic valve by branch road water inlet pipe It is arranged on the branch road water inlet pipe.
- A kind of 6. hydraulic turbine drive type intelligent atomizing cooling tower as claimed in claim 5, it is characterised in that：The hydraulic turbine enters Water end (W.E.) also connects bypass water inlet pipe, and the bypass water inlet pipe is connected by bypassing automatic valve with the water inlet pipe；Or, the bypass water inlet pipe connects some hydraulic turbine bypass water inlet pipes, the hydraulic turbine bypass water inlet pipe connects the water Turbine water inlet end.
- A kind of 7. hydraulic turbine drive type intelligent atomizing cooling tower as described in claim 4 or 5, it is characterised in that：The control Main frame PLC and the link of the temperature sensor, flow sensor, pressure sensor, freq uency conversion supercharging device and speed probe Connected from RS-485 serial bus communications；Or, the freq uency conversion supercharging device includes booster water pump, the booster water pump is equipped with frequency converter.
- 8. a kind of hydraulic turbine drive type intelligent atomizing cooling tower as described in claim 1-6 any claims, its feature exist In：The atomization water inlet pipe connects several atomization water-locator pipelines, and the atomization water-locator pipeline is atomized provided with several Shower nozzle；Or, the atomization push unit is provided with multiple, each fan blade outer ring setting Inner air duct guide plates.
- 9. a kind of hydraulic turbine drive type intelligent atomizing cooling tower as described in claim 1-6 any claims, its feature exist In：The tower body from cone or hyperbola or cylinder or polygon or square or cement tower or steelframe shape, Or glass steel tower；Or, the tower body top is provided with outlet air port grid；Or, the tower body top is provided with air duct, the air duct top is provided with Outlet air port grid.
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Application publication date: 20171128 |