CN107504831A - A kind of intelligent atomizing cooling tower device and its control method - Google Patents
A kind of intelligent atomizing cooling tower device and its control method Download PDFInfo
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- CN107504831A CN107504831A CN201710836795.3A CN201710836795A CN107504831A CN 107504831 A CN107504831 A CN 107504831A CN 201710836795 A CN201710836795 A CN 201710836795A CN 107504831 A CN107504831 A CN 107504831A
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- Prior art keywords
- inlet pipe
- water inlet
- cooling tower
- water
- atomizer
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Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
Abstract
A kind of intelligent atomizing cooling tower device and its control method of the present invention, including tower body, the atomizing module that is arranged in tower body and intelligence control system, tower body arrange water inlet pipe and outlet pipe；Atomizing module includes atomising device and atomization pushing meanss；Atomising device includes atomizer and atomization water inlet pipe, atomization water inlet pipe one end connection atomizer, other end connection water inlet pipe；Atomization pushing meanss are provided with sensing element, supercharging device and fan blade, supercharging device connection atomization water inlet pipe is simultaneously pressurized for atomizer, fan blade is arranged on atomizer lower end, and propulsive thrust drives as caused by spraying atomizer, cold wind is entered Ta Nei and carries out heat exchange with water droplets；It is additionally provided with intelligence control system, using control main frame PLC, automatic control control circuit and each sensing element, cooling tower and the operational factor of atomizing module that each sensing element obtains are transmitted to control main frame PLC by automatic control circuit and cooling tower are controlled by control main frame PLC.
Description
Technical field
The present invention relates to field of cooling tower, and in particular to a kind of intelligent atomizing cooling tower device and its control method.
Background technology
Industrial cycle water cooling tower organic tool aerating and cooling tower, cooling stack and spray cooling tower.Force ventilation
Have filler, water collection device, water-locator etc. inside cooling tower, outside installation blower fan forced ventilation, have cooling is big, spray density is big,
Low cost, shortcoming are that filler easily causes blocking through permanent use, air flow shortcircuit, have a strong impact on cooling tower heat transfer effect, electricity
Machine power consumption is big, and maintenance capacity is big；Cooling stack is the air pair formed by the atmospheric density difference inside and outside tower or natural wind
The cooling tower that stream is acted on and is aerated, because its tower body is high, investment is big, construction maintenance difficulty is big, is generally used for thermal power plant and follows
Ring water system.Spray cooling tower uses upper spraying type spraying ventilation atomising device, eliminates the filler part of cooling tower, makes whole tower
Almost turn into " void tower ", reduce the resistance in tower, and driven using water conservancy, reduce current and mist is produced by rotational flow atomized spray injector
Stream, the active force of spray starts sealed driving mechanism and fan blade reversely rotates, and cold wind enters and atomized flow from air inlet
Water droplets carry out heat exchange under the conditions of vaporific, to obtain expected cooling-down effect.
Spray cooling tower of the prior art has the following disadvantages：One, due to circulation operation it is unstable, cause
Hydraulic pressure head into cooling tower is too low so that cold to go his cooling-down effect poor；Two, due to quality problem, easily cause nozzle to block up
Plug, it is inconvenient to safeguard；Three, by the ejector action exhausting of spray nozzle, do not reach the quantity required for cooling in principle
The gas-water ratio of level, cooling are limited；Four, lack the low pressure of function admirable, the atomising device of the big runner of big flow, spray effect it is good with
It is not easily blocked this contradiction to be difficult to overcome, in consideration of it, spray cooling tower in the market and is not affected by substantial amounts of application, it is seen that existing
These problems demands present in technology solve.
The content of the invention
It is an object of the invention to provide it is a kind of it is simple in construction, make full use of water inlet pipe Shuifu County complementary energy, cooling effect is steady
It is fixed, and the intelligent atomizing cooling tower and its control method of water-saving and electricity-saving.
To achieve the above object, a kind of intelligent atomizing cooling tower device of the invention, including tower body, be arranged in tower body
Atomizing module and intelligence control system, the tower body arrange water inlet pipe and outlet pipe；
The atomizing module includes atomising device and atomization pushing meanss；
The atomising device includes atomizer and atomization water inlet pipe, and described atomization water inlet pipe one end connects atomizer,
The other end connects water inlet pipe, and is passed through the water with pressure and causes atomizer injection generation water droplets；
The atomization pushing meanss are provided with sensing element, supercharging device and fan blade, the supercharging device connection atomization water inlet
Guan Bingwei atomizers are pressurized, and the fan blade is arranged on atomizer lower end, and propulsive thrust drives as caused by spraying atomizer,
Cold wind is entered Ta Nei and carry out heat exchange with water droplets.
The atomizing module is provided with several, and some atomizing modules connect same water inlet pipe and are distributed in tower body；
Intelligence control system is additionally provided with, the intelligence control system utilizes control main frame PLC, automatic control control circuit and each biography
Sensing unit, the cooling tower and the operational factor of atomizing module that each sensing element obtains are transmitted to control by automatic control circuit to be led
Machine PLC is simultaneously automatically controlled by control main frame PLC to cooling tower.
Further, the atomization pushing meanss are additionally provided with branch road water inlet pipe, branch road water inlet pipe one end connection water inlet
Pipe, the other end connect the atomization water inlet pipe, and the branch road water inlet pipe sets branch road automatic valve.
The sensing element comprises at least：
The water inlet pipe is provided with inflow temperature sensor and is used to detect inflow temperature；
The outlet pipe is provided with leaving water temperature sensors and is used to detect leaving water temperature；
The atomizing module individually arranges flow sensor, pressure sensor, supercharging device and speed probe, the pressure
Force snesor and the flow sensor are arranged on the branch road water inlet pipe, and the speed probe coordinates the fan blade to set
Put；And/or the supercharging device selects the booster water pump equipped with frequency converter, the supercharging device is intake installed in the branch road
Guan Shang；
Or, the fan blade is enclosed provided with interior air duct guide collar；
Or, the control main frame PLC and each sensing element and supercharging device link select RS-485 universal serial bus
Communication connection.
Bypass water pipe, bypass water inlet pipe one end connection water inlet pipe are additionally provided with, the other end connects the atomization water inlet pipe,
The bypass water inlet pipe is provided with bypass automatic valve.
It is described atomization water inlet pipe be vertically arranged, the atomizer lower end by rotational coupling mechanism connect it is described be atomized into
Water pipe upper end；
The rotational coupling mechanism includes bearing holder (housing, cover) and rolling bearing, and the bearing holder (housing, cover) is fixed on the atomization water inlet pipe
End, the rolling bearing is provided with cavity connection atomization water inlet pipe and atomizer, the rolling bearing are rotatably connected on the axle
On bearing sleeve；
Or, the fan blade is fixedly connected on the rolling bearing, and the lower end of the atomizer is arranged on, described turn
Fast sensor is equipped with the atomization water inlet pipe；
Or, the atomizer is provided with several, the atomizer uniformly installs the upper end of the rolling bearing；
Or, there is angle, the injection direction of the atomizer in the axis of the atomizer with the atomization water inlet pipe
For perpendicular to the oblique upper of shower nozzle axis.
Further, 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 to be used to be passed through cold wind in tower, the drip water plate is located at the upper limb of the air inlet；
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.
Further, 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.
A kind of control system of intelligent atomizing cooling tower, it is applied to the cooling tower for possessing described in any of the above-described claim
One or with existing for parallel way and share same control main frame PLC cooling tower device, wherein, the control method
Including：
Prestore cooling tower identity information in control main frame PLC, and according to the default operation ginseng of the cooling tower identity information to prestore
The scope of the scope of number information and the trip information of each atomizing module；
Sensing element obtains the trip information of cooling tower, while records the operational factor letter of each atomizing module respectively
Breath；
The identity information and trip information of cooling tower are transmitted to control main frame PLC, control by automatic control circuit
Main frame PLC is stored and monitored to each trip information；When the trip information of sensing element transmission is in default ginseng
In the range of number information, the cooling tower is continued to run with, when the trip information of sensing element transmission is believed in default parameter
Outside the scope of breath, cooling tower operation cooling tower service data is regulated and controled by control main frame PLC and falls into preset range.
Further, the cooling tower trip information of the sensing element transmission shows cooling-down effect difference or fan blade rotating speed
It is small, after control main frame PLC is adjusted by data analysis and data, adjust automatically supercharging device supercharging, to cause cooling tower and each
The operational factor of atomizing module meets preset range.
Further, the cooling tower of the sensing element transmission and each atomizing module trip information show water inlet pipe
Hydraulic pressure disclosure satisfy that the operation of each atomizing module or disengaging water temperature reach setting range, closes branch road automatic valve 132, opens other
Road automatic valve 131, control water inlet pipe are passed through atomizer realization atomization cooling by bypassing water pipe.
Beneficial effects of the present invention are：
One, a kind of intelligent atomizing cooling tower device of the invention, cooling inner-tower filling material is removed in mechanical-draft cooling tower
Part, whole tower is almost turned into one " void tower ", reduce the resistance in tower；It is atomized when low pressure hot water is flowed into by water inlet pipe
Pushing meanss, rotated atomizer are sprayed in the form of spray, in the presence of the reaction force of spray flow, atomizer and
Fan blade rotates, and centrifugal force caused by atomizer rotation makes to be pressurized outside current direction so that atomizer rotates at a high speed, so as to drive
Fan blade is rotated, and a large amount of cold wind are pumped into from air inlet, and the spray flow that cold wind is formed with water droplets carries out heat exchange with mist,
The heat of hot water is taken away in the cold wind humidification gain of heat, and damp and hot air is discharged outside tower by air duct after the water collection device of tower top receives water, reached
To the effect of cooling, present invention eliminates the motor fan of standard machinery aerating and cooling tower, and the water that floats of cooling tower is reduced, reached
To the effect of water saving, economize on electricity；
Two, when the hypotony of recirculated water, atomization pushing meanss spray effect difference and its reaction can be caused small, produced
Not vaporific atomized flow, it can not produce and rotate at a high speed, cause that cooling tower cooling is undesirable, and in the present invention, there is provided intelligent control
System processed, data feedback is given to control main frame PLC by sensing element, after data analysis and system balancing regulation, utilized
Booster water pump supercharging equipped with frequency converter, enables the atomizer in each atomizing module and fan blade to rotate at a high speed and spray atomization stream
Disclosure satisfy that service requirement, make cooling tower reach cooling require, solve circulation pressure of return water it is too low when, cooling tower
Cooling-down effect difference the problem of；
Three, the sensing element arranged in the cooling tower and in each atomizing module can be in real time by each road atomizer, each
The running situation of atomization pushing meanss feeds back to PLC control main frames, can in real time understand and adjust each road atomising device and atomization
The running situation of pushing meanss, know which atomising device and atomization pushing meanss are out of order, blocked in time, reduce dimension
Difficulty is repaiied, reduces the repair time, improves the operational efficiency of cooling tower；
Four, while cooling using atomization pushing meanss, the second cooling structure is additionally provided with, the second cooling structure is water drenching
Plate, drip water plate top connection water collection device, drip water plate are arranged on the upper limb of air inlet, when the spray flow that water droplets are formed is with vaporific
After form carries out heat exchange with cold wind, partly atomized water droplet is flowed down after encountering water collection device upwards by drip water plate, and through water drenching
The water drenching hole of plate carries out cold and hot exchange, realizes reducing temperature twice, adds film-cooled heat and cool time, adds cooling effect
Fruit；
Five, atomizing module is arranged in tower body in the present invention, and the jet space of atomizer is reserved with tower body, made
Obtain water droplets realizes heat exchange cooling in tower body, and has been recovered to by water collection device and drip water plate in pond, reduces general
Logical mechanical-draft cooling tower blower fan because strong drawing and caused by the water that floats to outside cooling tower, further reached the mesh of water saving
's；
Six, auxiliary water inlet pipe of the water pipe as branch road water inlet pipe is bypassed in of the invention, when the pressure of return water of recirculated water is enough
Meet atomising device and be atomized pushing meanss high-speed cruising and atomization cooling when, intelligence control system by pressure sensor,
The data that temperature sensor and flow sensor are sensed feed back to control master by the transmission means of RS-485 universal serial bus
Machine PLC, controlling brancher automatic valve are closed automatically, are opened bypass automatic valve, are supplied water to atomizing module and ensure atomizing module
Normal operation and demand, meet the cooling requirement of cooling tower, rationally make use of the power surplus of recirculated water, so as to reach economize on electricity
Purpose；
Seven, cooling tower structure of the invention is simple, and installation, repacking are convenient, suitable for grassroot project, are also applied for existing cooling
The repacking of tower, to the adaptable of various tower bodies, use easy to spread.
Brief description of the drawings
The cut away view of the cooling tower of Fig. 1 embodiments 1；
Fig. 2 is the top view of the cooling tower of embodiment 1；
Fig. 3 is the partial cross sectional views of embodiment 1；
Fig. 4 is the partial cross sectional views of embodiment 1；
Fig. 5 is the partial cross sectional views of embodiment 1；
Fig. 6 intelligence control system control method flow charts.
Embodiment
As shown in figs 1 to 6, a kind of intelligent atomizing cooling tower device of the invention, including tower body 1, be arranged in tower body 1
Atomizing module and intelligence control system, the tower body arrange water inlet pipe 4 and outlet pipe 5.
The atomizing module includes atomising device and atomization pushing meanss；The atomising device includes atomizer 20 and mist
Change water inlet pipe 21, atomization water inlet pipe 21 one end connection atomizer 20, other end connection water inlet pipe 4, and be passed through with pressure
The water of power causes the injection generation water droplets of atomizer 20.
The atomization pushing meanss include sensing element, supercharging device and fan blade 7, the supercharging device connection atomization water inlet
Pipe 21, and supercharging is provided for atomization water inlet pipe 21, the fan blade 7 is arranged on the lower end of atomizer 20, is sprayed and produced by atomizer
Raw propulsive thrust driving, cold wind is entered Ta Nei and carry out heat exchange with water droplets.
The atomization pushing meanss also include branch road water inlet pipe 19, and described one end of branch road water inlet pipe 19 connects water inlet pipe 4, separately
One end connection is described to be atomized water inlet pipe 21, and branch road automatic valve 132 is set on the branch road water inlet pipe 19.
The atomizing module is provided with several, and some atomizing modules connect same water inlet pipe 4 and are distributed in tower body,
The jet space of atomizer 20 is reserved in the tower body 1, the top of tower body 1 is equipped with water collection device 2；The inwall of tower body 1
Drip water plate 23 is surrounded by, the upper end of drip water plate 23 connects water collection device 2, and the lower end of tower body 1 is provided with air inlet 6 and is used in tower
Cold wind is passed through, the air inlet 6 arranges induced-draft plate 22, and the induced-draft plate 22 leads into the wind in tower body 1 towards court in tower body
On blow, the drip water plate 23 is located at the upper limb of the air inlet 6.
The intelligent atomizing cooling tower device is additionally provided with the steel bracket 18, and the upper end of steel bracket 18 supports the tower body
1 with the atomization unit, lower end is installed on the pond 25；The lower end of tower body 1 communicates with the pond 25, the water outlet
For pipe 5 from the pass-out of pond 25, the water droplet that the drip water plate 23 flows down flows into the pond 25.The air inlet is arranged on described
The periphery of steel bracket 18.
The sensing element includes：What is set on water inlet pipe is used for the water inlet pipe provided with inflow temperature sensor 121
Detect inflow temperature；
The outlet pipe is provided with leaving water temperature sensors 122 and is used to detect leaving water temperature；
The atomizing module individually arranges flow sensor 17, pressure sensor 15, supercharging device and speed probe 8,
The pressure sensor 15 and the flow sensor 7 are arranged on the branch road water inlet pipe 19, and the speed probe 8 coordinates
The fan blade 7 is set；And/or the supercharging device selects the booster water pump 16 equipped with frequency converter, the supercharging device is arranged on
On the branch road water inlet pipe 19；
Or, the control main frame PLC and each sensing element and supercharging device link select RS-485 universal serial bus
Communication connection.
Be additionally provided with bypass water pipe 14, bypass water inlet pipe 14 one end connection water inlet pipe 4, other end connection is described be atomized into
Water pipe 21, the bypass water inlet pipe 14 are provided with bypass automatic valve 131.The bypass water pipe 14 and the branch road water inlet pipe 13
It is set up in parallel, one end connects with water inlet pipe 4, and the other end connects with atomization water inlet pipe 21.
The atomization water inlet pipe 21 pass-out and connects atomizer 20 vertically upward, and the lower end of atomizer 20 is by turning
Dynamic bindiny mechanism 22 connects atomization water inlet pipe 21 upper end；The rotational coupling mechanism 22 includes bearing holder (housing, cover) 26 and rolling bearing
24, the bearing holder (housing, cover) 26 is fixed on atomization water inlet pipe 21 upper end, and the rolling bearing 24 is provided with cavity connection atomization water inlet
Pipe 21 and atomizer 20, the rolling bearing 24 are rotatably connected on the bearing holder (housing, cover) 26；The fan blade is fixedly connected on institute
State on rolling bearing 24, and be arranged on the lower end of the atomizer 20, the speed probe 8 is equipped with the atomization
On water inlet pipe 21；Wherein, the atomizer 20 is provided with multiple, and the atomizer 20 uniformly installs the rolling bearing 24
Angle, the injection direction of the atomizer 20 be present with the atomization water inlet pipe 21 in upper end, the axis of the atomizer 20
To be provided with interior air duct guide collar 10 perpendicular to the oblique upper of shower nozzle axis, the 7 outer corral of fan blade.
The intelligent atomizing cooling tower device also arranges intelligence control system, and the intelligence control system includes control main frame
PLC, automatic control control circuit and each sensing element, the cooling tower and the operational factor of atomizing module that each sensing element obtains pass through certainly
Dynamic control circuit is transmitted to control main frame PLC and cooling tower is automatically controlled by control main frame PLC.It is described to automatically control
Circuit selects RS-485 circuits.
As an alternative solution：
One, the top of the tower body 1 in the present embodiment is provided with air duct, and the air duct top is provided with outlet air port grid 3；
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, atomizing module multi-tier arrangement in the cooling tower in the present embodiment.
The intelligent atomizing cooling tower device can be an intelligent atomizing cooling tower for possessing above-mentioned configuration or
Existing for parallel way and to share same control main frame PLC multiple cooling tower devices, selected by its intelligence control system
Control method includes：
Prestore cooling tower identity information in control main frame PLC, and according to the default operation ginseng of the cooling tower identity information to prestore
Number information scope and each atomizing module trip information scope, set when, also by each atomizing module for the ease of
Management to each atomizing module, prestore cooling tower identity information when, also each atomizing module is named.
Sensing element obtains the trip information of cooling tower, while records the operational factor letter of each atomizing module respectively
Breath；
The identity information and trip information of cooling tower and each atomizing module pass through RS-485 serial bus transmissions to control
Main frame PLC processed, control main frame PLC are stored and monitored to each trip information；When the operational factor of sensing element transmission
Information continues to run with the cooling tower in the range of default parameter information, when the trip information of sensing element transmission
Outside the scope of default parameter information, cooling tower operation cooling tower service data is regulated and controled by control main frame PLC and fallen into
Preset range.
The cooling tower trip information of the sensing element transmission shows that cooling-down effect difference or fan blade rotating speed are small, control master
After machine PLC is by data analysis and data regulation, adjust automatically supercharging device supercharging, to cause cooling tower and each atomizing module
Operational factor meets preset range.
The cooling tower and each atomizing module trip information of the sensing element transmission show that the hydraulic pressure of water inlet pipe can
The operation or disengaging water temperature for meeting each atomizing module reach setting range, close branch road automatic valve 132, open bypass automatic valve
Door 131, control water inlet pipe are passed through atomizer realization atomization cooling by bypassing water pipe.
It is an object of the invention to provide a kind of smart spraying cooling tower, because of the circulation each entered from water inlet pipe 4
Backwater power surplus differ, to ensure making full use of for system return power surplus, based on atomizing cooling tower, installation increases
Pressure device and intelligence control system, make recirculated water under any production status, any pressure head operation, the cold of cooling tower can be ensured
But cooling-down effect, and automatically analyzed and controlled by control main frame PLC, atomization dress is promoted with which specific apparent spraying
Put and be out of order, block, pressure charging system is automatically adjusted according to the temperature difference of cooling tower and pressure head, on the premise of cooling effect is ensured
Make spray-propelling atomizer water inlet pressure head be under optimum state to run, reduce power consumption, drift ice.
The present invention is also provided with the second cooling structure to strengthen on the basis of cooling effect is realized using atomizing module
Cool effect.Second cooling structure is drip water plate 23, air-inlet window 6, and drip water plate 23 is located at the upper limb of air-inlet window 6,
And it is connected with the water collection device 2 of the upper end of drip water plate 23；For hot water after the cooling down of propeller system 9 of spraying, part water smoke is upward
Flowed down after encountering water collection device by drip water plate 23, and the cold and hot exchange in water drenching hole through drip water plate 23, reach reducing temperature twice cooling
Effect.
The cooling tower tower body 1 can use cone, hyperbola, cylinder, polygon, square, cement tower, steelframe
The newly-built or transformation of type, fiberglass etc..
When multiple atomizing modules are set in the cooling tower, it can be put with cloth as Unit layers or multilayer.
Operation principle：The low pressure hot water flows into atomization pushing meanss, the mist connected through rolling bearing 24 by water inlet pipe 4
Change shower nozzle 20 to spray in the form of spray, in the presence of the reaction force of spray flow, atomizer 20 and installed in rolling bearing
Fan blade 7 on 24 rotates.Atomizer 20, which rotates caused centrifugal force, to be made to be pressurized outside current direction, so as to realize atomizer and wind
The high speed rotation of leaf, substantial amounts of cold wind is pumped into from air inlet 6.Cold wind carries out heat exchange with hot water atomized stream with mist, cold
The heat of hot water is taken away in the wind humidification gain of heat, and damp and hot air is arranged after the water collection device of tower top receives water by air duct (gas outlet grid)
Go out outside tower, reach the effect of cooling.Due to eliminating the motor fan of standard machinery aerating and cooling tower, and reduce cooling tower
Float water, has reached the purpose of water-saving and electricity-saving.
During the hypotony of the recirculated water, spraying propeller system spray effect can be caused poor, and reaction force is small, production
Vaporific atomized flow is not given birth to, can not produce and rotate at a high speed, can more cause cooling tower cooling undesirable；Intelligence control system passes through
The pressure sensor and inflow temperature sensor 121 that are set on atomizing module, the data feedback of leaving water temperature sensors 122 are to control
Main frame PLC processed, and be pressurized after data analysis and system balancing regulation by the supercharging device 16 equipped with frequency converter, meet branch
Each atomizer 20 and the high speed rotation of fan blade 7 and the service requirement of spray atomization stream that road water inlet pipe 19 connects, so that cold
But tower reaches the requirement normally to cool；The intelligent control method thoroughly solves backwater pressure of the circulation under any situation
When power is ultralow, meet the cooling requirement of cooling tower.
The setting of the bypass water pipe 14 is act as, when the circulating hot water that water inlet pipe 4 flows into is passed directly into bypass water pipe
14, when hydraulic pressure meet enough atomizer 20 and fan blade 7 high-speed cruising and it is hot water atomized when, intelligence control system passes through pressure
Sensor 15, inflow temperature sensor 121 and the data feedback of leaving water temperature sensors 122 and flow sensor 17 are led to control
Machine PLC, control main frame PLC controlling branchers automatic valve 132 are closed, and are opened bypass automatic valve 131 and are supplied straight to atomizing module
Water, so as to reach the purpose of economize on electricity；When the circulating hot water flowed into when water inlet pipe 4 flow through it is described bypass water pipe 14, into atomization
The hydraulic pressure of module be not enough to for atomizer 20 and the high-speed cruising of the fan blade 7 and it is hot water atomized when, intelligence control system passes through
Pressure sensor 15, inflow temperature sensor 121 and the data feedback of leaving water temperature sensors 122 and flow sensor 17 are to control
Main frame PLC processed, control main frame PLC controlling branchers automatic valve 132 are opened, and are enabled branch road water inlet pipe 19 and are intake to atomizing module,
Automatic bypass automatic valve 131 of closing supplies water to atomizing module, so as to realize the atomization of atomizing module and refrigerating function.
Case：Certain circulation has the cooling tower that specified water process amount is 4000m3/h, and cooling tower water inlet height is 10
Rice, cooling tower air inlet top is high 5 meters, and backwater pressure head is 17 meters before cooling tower valve, and blower fan of cooling tower necessary electromotor power is
185kW, air quantity 315 × 104m3/ h, density of moist air 1.1358kg/m3.Blower fan of cooling tower actual motion power is 149kW,
Cooling tower actual motion flow is 3800m3/h.System water supplement amount is 80m3/h。
System power surplus is calculated by formula P=ρ × g × Q × H ÷ 3600, calculated by 11 meters of pressure heads more than needed
When, gross energy more than needed is 113.9kW, and power surplus can not use pure water turbine to drive much smaller than the power needed for blower fan of cooling tower
It is dynamic, water-electric combination drive need to be used, but cooling tower floats that water is too high can not still to be solved.
Reduced using the intelligent atomizing cooling tower device of the present invention while solving the problems, such as cooling tower invisible waste electricity cold
But tower floats water.Given and supplemented using Intelligent pressure unit while power surplus deficiency, system power surplus is obtained fully
Utilization.Implementation process is as follows：
Intelligent atomizing cooling tower device is arranged in cooling tower using multiple atomizing module combinations.Single atomizing module
Design can be combined according to different flows, the single atomizing module of this project is according to 106m3/ h is designed.
Intelligent atomizing cooling tower device can pass through propulsive thrust calculation formula F=ρ Qv (F under design discharge:Propulsive thrust, it is single
Position N；ρ：The density of water, units/kg/m3；Q：Flow, unit m3/s；v：Flow velocity, unit m/s) calculate pushing away under metered flow
Power, then pass through torque arithmetic formula：T=FL (T：Moment of torsion, unit Nm；F:Propulsive thrust, unit N；L：Moment length, unit m) and
Rotating speed calculation formula：N=v ÷ C × 60s (n：Rotating speed, unit r/min；v：Flow velocity, unit m/s；C：Circumference, unit m) are calculated
The moment of torsion and rotating speed gone out under metered flow.Then (the P of formula P=T × n ÷ 9550 are passed through：Power, unit kW；T：Moment of torsion, unit
Nm；n：Rotating speed, unit r/min；9550:Constant) calculate spray module work done rate under metered flow and pressure head.Finally from
Formula P=ρ gQH (P：Power, unit kW；ρ：The density of water, units/kg/m3；g：Acceleration of gravity, unit m/s2；Q：Flow, it is single
Position m3/s；H：Pressure head or lift, unit m) inverses go out the atomizing module pressure head required when reaching metered flow.As system is had more than needed
Pressure head is less than the value, then starts the supercharging device 16 equipped with frequency converter；Such as indivedual atomizing modules failure blocks, then can lead to
Cross and improve the water inlet pressure head of single atomizing module to reach cooling effect.
Calculated by above formula, unit atomizing module presses 106m3When/h is designed, pressure head needed for system is 12.32
Rice.As system pressure head of having more than needed need to increase less than the value or flow system flow or when atomizing module blocks by the supercharging equipped with frequency converter
The Automatic-boosting of device 16, as system have more than needed pressure head be higher than the value when, then enter atomizing module by bypassing water pipe 14, equipped with frequency conversion
Branch road water inlet pipe 19 where the supercharging device 16 of device is closed automatically.
This project hydraulic turbine is had more than needed -6 meters of pressure head=17 meter=11 meter
17 meters：For backwater pressure head；
6 meters：Atomizing module setting height(from bottom), it is installed on air inlet 6 and pushes up 1 meter of right position；
The pressure head deficiency it can be seen from the above calculation that system is had more than needed, need to use and supply 12.32 meters using Intelligent pressure unit, and
The pressure head and flowmeter mended on demand calculate 16 power consumption of supercharging device equipped with frequency converter.
(3) to make intelligent atomizing cooling tower play preferable cooling-down effect, hydraulic turbine smart spraying cooling tower gas-water ratio is pressed
1.3 are designed, and the air quantity and blast of blower fan are driven by the gas-water ratio design hydraulic turbine, according to air quantity, blast and the rotating speed of reality
Design alternative blower fan.It can specifically be calculated by below equation：
Gas-water ratio=enter the mass flow Q water that tower MAF Q gas m ÷ enter tower water
Enter tower air mass flow Q gas=enter tower MAF Q gas m ÷ density of moist air ρ mm
Q gas m：Enter tower MAF (kg/s)
Q water：Enter the mass flow (kg/s) of tower water
Q gas：Enter tower air mass flow, i.e. air quantity (m3/h)
ρm：Density of moist air (kg/m3)
Because blower fan is directly driven by the propulsive thrust of sprayer unit, the propulsive thrust of sprayer unit is the input work of blower fan
Rate, so fan pressure can be drawn by power of fan formula inverse, i.e.,：
Fan pressure=hydraulic turbine acting × 3600 × 1000 × η blower fan ÷ air quantity Q gas
Blast unit:Pa
The hydraulic turbine does the unit of work：kW
Air quantity Q gas units：m3/h
By the calculating to system capacity, and cloud computing intelligent sprayer unit designed according to calculated case (including spraying fills
Put, blower fan, control system etc.).By the test to actual operating data before and after Revamping Cooling Tower, this intelligent atomizing cooling tower changes
Economized on electricity after making up to 84.6%, water saving also has more than 20%.Refer to following table:
Cooling tower service data contrasts before and after transformation
The present invention compared with prior art, has advantages below and effect：Simple in construction, installation, maintenance is convenient；Energy more than needed
Startup supercharging can be automatically adjusted when measuring inadequate and improves thrust, it is ensured that production safety；The power surplus of factory is fully utilized, no
Cause to waste.
As a result of intelligence control system and the automatic pressure regulation of the supercharging device equipped with frequency converter 16, circulation is realized
The low pressure occurred under the system call interception and production status of water under any circumstance can meet to run；And by cooling down tower cooler
Air capacity and the gas-water ratio of cooling water inflow, using forward arranging, water has two cooling procedures of following current and adverse current, part in tower
Mist droplet is in suspended state on tower top, so as to extend residence time of the water in tower, sufficiently ensure that heat exchange
Time, as a result of interior air duct guide collar, sieve plate (net) drip water plate, water collection device, economize on electricity, water saving, noise reduction are realized, is reduced
The operating cost of process recycled water, positive effect, therefore a kind of cloud computing intelligent spray cooling tower should be existing cooling tower
Regeneration 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 (10)
- A kind of 1. intelligent atomizing cooling tower device, it is characterised in that：Including tower body, the atomizing module being arranged in tower body and intelligence Control system, the tower body arrange water inlet pipe and outlet pipe；The atomizing module includes atomising device and atomization pushing meanss；The atomising device includes atomizer and atomization water inlet pipe, and atomization water inlet pipe one end connection atomizer is another End connection water inlet pipe, and be passed through the water with pressure and cause atomizer injection generation water droplets；The atomization pushing meanss are provided with sensing element, supercharging device and fan blade, and the supercharging device connection atomization water inlet pipe is simultaneously It is pressurized for atomizer, the fan blade is arranged on atomizer lower end, and propulsive thrust drives as caused by spraying atomizer, makes cold Wind enters Ta Nei and carries out heat exchange with water droplets；The atomizing module is provided with several, and some atomizing modules connect same water inlet pipe and are distributed in tower body；Intelligence control system is additionally provided with, the intelligence control system utilizes control main frame PLC, automatic control control circuit and each sensing element Part, the cooling tower and the operational factor of atomizing module that each sensing element obtains are transmitted to control main frame by automatic control circuit PLC is simultaneously automatically controlled by control main frame PLC to cooling tower.
- 2. intelligent atomizing cooling tower device as claimed in claim 1, it is characterised in that：The atomization pushing meanss are additionally provided with branch Road water inlet pipe, described branch road water inlet pipe one end connect water inlet pipe, and the other end connects the atomization water inlet pipe, the branch road water inlet pipe Branch road automatic valve is set.
- 3. intelligent atomizing cooling tower device as claimed in claim 2, it is characterised in that：The sensing element comprises at least：The water inlet pipe is provided with inflow temperature sensor and is used to detect inflow temperature；The outlet pipe is provided with leaving water temperature sensors and is used to detect leaving water temperature；The atomizing module individually arranges flow sensor, pressure sensor, supercharging device and speed probe, and the pressure passes Sensor and the flow sensor are arranged on the branch road water inlet pipe, and the speed probe coordinates the fan blade to set；With/ Or, the supercharging device selects the booster water pump equipped with frequency converter, the supercharging device is arranged on the branch road water inlet pipe；Or, the fan blade is enclosed provided with interior air duct guide collar；Or, the control main frame PLC and each sensing element and supercharging device link select RS-485 serial bus communications Connection.
- 4. intelligent atomizing cooling tower device as claimed in claim 3, it is characterised in that：It is additionally provided with bypass water pipe, the bypass Water inlet pipe one end connects water inlet pipe, and the other end connects the atomization water inlet pipe, and the bypass water inlet pipe is provided with bypass automatic valve Door.
- 5. the intelligent atomizing cooling tower device as described in claim 1-4 any claims, it is characterised in that：It is described be atomized into Water pipe is vertically arranged, and the atomizer lower end connects the atomization water inlet pipe upper end by rotational coupling mechanism；The rotational coupling mechanism includes bearing holder (housing, cover) and rolling bearing, and the bearing holder (housing, cover) is fixed on the atomization water inlet pipe upper end, The rolling bearing is provided with cavity connection atomization water inlet pipe and atomizer, the rolling bearing are rotatably connected on the bearing holder (housing, cover) On；Or, the fan blade is fixedly connected on the rolling bearing, and the lower end of the atomizer is arranged on, the rotating speed passes Sensor is equipped with the atomization water inlet pipe；Or, the atomizer is provided with several, the atomizer uniformly installs the upper end of the rolling bearing；Or, the axis of the atomizer has angle with the atomization water inlet pipe, the injection direction of the atomizer is vertical Directly in the oblique upper of shower nozzle axis.
- A kind of 6. intelligent atomizing cooling tower device as claimed in claim 5, it is characterised in that：Atomization spray is reserved in the tower body The jet space of head, 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 is used to be passed through cold wind in tower, and the drip water plate is located at the upper limb of the air inlet；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.
- A kind of 7. intelligent atomizing cooling tower device as claimed in claim 6, it is characterised in that：It is additionally provided with the steel bracket support 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.
- 8. a kind of control system of intelligent atomizing cooling tower, it is applied to the cooling tower for possessing described in any of the above-described claim One or with existing for parallel way and share same control main frame PLC cooling tower device, wherein, the control method bag Include：Prestore cooling tower identity information in control main frame PLC, and is believed according to the cooling tower identity information default operational factor to prestore The scope of the trip information of the scope of breath and each atomizing module；Sensing element obtains the trip information of cooling tower, while records the trip information of each atomizing module respectively；The identity information and trip information of cooling tower are transmitted to control main frame PLC, control main frame by automatic control circuit PLC is stored and monitored to each trip information；When the trip information of sensing element transmission is believed in default parameter In the range of breath, the cooling tower is continued to run with, when the trip information of sensing element transmission is in default parameter information Outside scope, cooling tower operation cooling tower service data is regulated and controled by control main frame PLC and falls into preset range.
- 9. control method as claimed in claim 8, also comprises the following steps：The cooling tower operation ginseng of the sensing element transmission Number presentation of information cooling-down effect difference or fan blade rotating speed are small, after control main frame PLC is adjusted by data analysis and data, adjust automatically Supercharging device is pressurized, to cause cooling tower and the operational factor of each atomizing module to meet preset range.
- 10. control method as claimed in claim 8 or 9, also comprises the following steps：The cooling tower of sensing element transmission and Each atomizing module trip information shows that the hydraulic pressure of water inlet pipe disclosure satisfy that the operation of each atomizing module or disengaging water temperature reach Setting range, branch road automatic valve is closed, open bypass automatic valve, control water inlet pipe is passed through atomizer by bypassing water pipe Realize atomization cooling.
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| CN201710836795.3A CN107504831A (en) | 2017-09-17 | 2017-09-17 | A kind of intelligent atomizing cooling tower device and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631407A (en) * | 2019-10-14 | 2019-12-31 | 上海诺佛尔生态科技有限公司 | Intelligent cooling tower device, system and working method |
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