CN106500521B - Energy-saving recirculating cooling water system - Google Patents
Energy-saving recirculating cooling water system Download PDFInfo
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- CN106500521B CN106500521B CN201610915385.3A CN201610915385A CN106500521B CN 106500521 B CN106500521 B CN 106500521B CN 201610915385 A CN201610915385 A CN 201610915385A CN 106500521 B CN106500521 B CN 106500521B
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- water
- electrically operated
- operated valve
- cooling
- power generation
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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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
- F28C2001/006—Systems comprising cooling towers, e.g. for recooling a cooling medium
Abstract
The present invention is energy-saving recirculating cooling water system, solves the problem of that existing cooling circulating water system is wasted using the energy for turning down valve opening control pressure and water valve plate blocking water flow.Increase power generation bypass (20) on the water return pipeline (6) of the hot water flowed out from heat exchanger (5), the power generation bypass stretches tubular turbine and generator and power generation control comprising small-size shaft, electrically operated valve (13) are set on former water return pipeline, setting water inlet electrically operated valve (7) and water outlet electrically operated valve (11) in hydraulic turbine inlet and outlet pipe, the output of PLC control unit connects electronic control unit, and electronic control unit connects electrically operated valve, water inlet electrically operated valve, water outlet electrically operated valve, hydraulic turbine electric controller and power generation control respectively.
Description
Technical field:
The present invention is related with recirculating cooling water system.
Background technique:
The general only gifted scholar when seasonal temperature change or system requirement change very greatly of traditional recirculating cooling water system
Work carries out very thick adjusting to quantity of circulating water manually, and existing cooling circulating water skill system, there are nargin for design needs, chooses water pump
Pumps design lift caused by can only leaning on toward big specification is higher than system actual resistance lift or pumps design flow is greater than system
Flow actually required causes to waste, and position of the cooling water from high-order heat exchanger to hot-tub or into cooling tower can be by effective benefit
With cooling tower filler is destroyed by rush of water some in order to prevent, is reduced hydraulic pressure using upper tower valve opening is turned down, is wasted recirculated cooling water
Energy.Existing cooling circulating water system, designing system must assure that the cooling water amount of the highest temperature, with the decline of temperature
The cooling water inflow needed is reduced, general only in seasonal variations, is used when ambient air temperature changes greatly and is turned down valve opening or reduction
Water pump quantity is run to reduce pump capacity, but valve plate stops the energy of water flow to be wasted, there are also daily environment temperatures
Changing at any time, there is the variation in several years to ten several years or the variation of production yields technique, water actually required reduces, and not
Quantity of circulating water is adjusted, energy dissipation is caused.Existing cooling circulating water system, which must assure that, is sent to highest heat exchanger for cooling water, low
The hydraulic pressure of position heat exchanger is excessive, and general using valve opening control pressure and water is turned down, valve plate stops the energy of water flow unrestrained
Take.
Summary of the invention:
Make recirculated water the object of the present invention is to provide a kind of low energy consumption, the energy-saving recirculating cooling water system of power saving.
The present invention is implemented as follows:
Energy-saving recirculating cooling water system, motor 2 drive water pump 3, the water of water cooling pond 1 are sent by upper jellyfish pipe 4
To heat exchanger 5, the equipment or material of cooling requirement cooling, the hot water flowed out from heat exchanger flows to hot-tub by water return pipeline 6
14, the cooling of cooling tower 12 is extracted by heat-exchanger pump 15, or the hot water flowed out from heat exchanger passes through upper tower water by water return pipeline again
Pipeline 18 flows into cooling tower cooler, water cooling pond is fallen into after hot water is cooling, then pump use by water pump circulation, it is characterised in that from changing
Increase power generation bypass 20 on the water return pipeline of the hot water of hot device outflow, or increases hair in the upper tower water lines for flowing into cooling tower
Electricity bypass 20, the power generation bypass stretch tubular turbine 8 or Francis turbine and generator 9 and power generation comprising small-size shaft
Electrically operated valve 13 is arranged in control device 10 on raw water water return pipeline, the setting water inlet motor-driven valve in hydraulic turbine inlet and outlet pipe
Door 7 and water outlet electrically operated valve 11, the power generation control is by the general generator control panel of common small hydropower station and follows
Ring water intelligent regulating device composition, the quantity of circulating water intelligently adjust dress and acquire circulation by several temperature sensors
The temperature of pipeline and equipment is converted to the readable data-signal of programmable controller PLC, inputs to programmable controller PLC control
Cell processing processed, the output of programmable controller PLC control unit connect electronic control unit, and electronic control unit is separately connected original
Water water return pipeline electrically operated valve, water inlet electrically operated valve, water outlet electrically operated valve, hydraulic turbine electric controller and Generation Control dress
It sets.
The water return pipeline of the hot water flowed out from heat exchanger connects the upper tower water lines for flowing into cooling tower, motor-driven valve through electrically operated valve
The inlet and outlet pipes for connecting the hydraulic turbine with water outlet electrically operated valve into water electrically operated valve are respectively set in door both ends, and the hydraulic turbine and generator pass
Dynamic connection, generator are connect with power generation control.
The water return pipeline of the hot water flowed out from heat exchanger flows into hot-tub 14 through electrically operated valve, is extracted into cooling by heat-exchanger pump 15
The water inlet end of tower cooler, electrically operated valve is connected through the water inlet pipe of water inlet electrically operated valve and the hydraulic turbine, and the outlet pipe of the hydraulic turbine is through going out
Water power movable valve is connect with hot-tub, and the hydraulic turbine is connect with generator drive gear, and generator is connect with power generation control.
One or several power generation bypasses 20 can be increased on water return pipeline.
The present invention increases one or more bypasses on common recirculating cooling water system, and water wheels hair is equipped in bypass
Motor group, a quantity of circulating water intelligent regulating device is also added on recirculating cooling water system, and quantity of circulating water intelligently adjusts dress
It sets, which is converted to programmable controller by the temperature of several temperature sensors acquisition circulation pipeline and equipment
PLC readable data-signal inputs to the processing of programmable controller PLC control unit, is then output to electronic control unit, controls
Make former water return pipeline electrically operated valve 13 and water inlet electrically operated valve 7 and water outlet electrically operated valve 11 and hydraulic turbine electric controller and
Power generation control.The principle of the quantity of circulating water intelligent regulating device is the requirement of equipment and technique of being cooled according to recirculated water,
One economic temperature range of operation is set, and PLC control unit is driven by electric valve in real time according to temperature collecting cell data
The water amount of moving cell and the hydraulic turbine electric motor drive unit control hydraulic turbine, meanwhile, because the variation of hydraulic turbine water makes system pressure
Power variation, changes water pump actual motion lift, changes pump capacity, pump motor power corresponding change, i.e. water pump electricity
Motivation power consumption corresponding change.Electrically operated valve is electric butterfly valve or electric gate valve.Temperature collecting cell in Fig. 3 is temperature signal
The identifiable digital signal of PLC is converted to, the most commonly used is " 485 " signals.
The energy-saving cooling circulating water system can be set one to several power generations bypass 20, each power generation bypass
The 20 a set of electricity generation systems of installation, power generation bypass 20 and water return pipeline 6 are parallel relationships, can be simultaneously by the valve on pipeline
Water is crossed, water can be crossed respectively, mutually switched, guarantees that recirculated cooling water is unimpeded in any case.
The present invention is that the variation of temperature and Process of Water Circulating System variation require when basis is per daily, in real time to hydraulic turbine tune
Amount of restriction adjusts quantity of circulating water using the real-time automatic and accurate of power generation control 10, cooling water is made to save 10-25%, pump motor
Power consumption reduces 10-25%, meanwhile, the hydraulic turbine converts system overbottom pressure, and driven generator electrification feedback power grid reduces 10-15%'s
Alternating current uses, to make that recirculated water energy consumption is lower, amount of electricity saving is higher.Increased small-size shaft stretch tubular turbine electricity generation system and
Quantity of circulating water intelligent regulating system, which can consume energy recirculated water, reduces 20-40%.
Existing cooling circulating water technology, design are needed there are nargin, water caused by choosing water pump and can only leaning on toward big specification
Pump rated lift is higher than system actual resistance lift or pumps design flow is greater than system flow actually required and causes to waste,
Cooling water can not be used effectively from high-order heat exchanger to hot-tub or into the position of cooling tower, and some in order to prevent fill out by cooling tower
Material is destroyed by rush of water, and reduces hydraulic pressure using upper tower valve opening is turned down, the increased small-size shaft of the present invention stretches tubular turbine power generation system
System can make full use of these energy wasted originally.
Existing cooling circulating water technology, designing system must assure that the cooling water amount of the highest temperature, under temperature
The cooling water inflow needed is dropped to reduce, it is general only in seasonal variations, it is used when ambient air temperature changes greatly and turns down valve opening or subtract
Run water pump quantity less to reduce pump capacity, but valve plate stops the energy of water flow to be wasted, there are also daily environment temperature
Degree changes at any time, there is the variation in several years to ten several years or the variation of production yields technique, and water actually required reduces, and
Quantity of circulating water is not adjusted, causes energy dissipation, and the increased small-size shaft of the present invention stretches through-flow kaplan type turbine electricity generation system, can be with
Quantity of circulating water is automatically adjusted at any time, reduces the power consumption of pump motor, meanwhile, through-flow kaplan type turbine, which is stretched, in small-size shaft reduces
When quantity of circulating water, pressure of return water will rise, and the utilizable head of the hydraulic turbine increases, and hydrogenerator can be with multiple electricity.Therefore,
Increased small-size shaft, which stretches through-flow Kaplan formula hydroelectric generating system and quantity of circulating water intelligent regulating system, can make full use of original wave
These energy taken.
Existing cooling circulating water technology, system, which must assure that, is sent to highest heat exchanger, the water of low level heat exchanger for cooling water
It presses through greatly, general using valve opening control pressure and water is turned down, valve plate stops the energy of water flow to be wasted.It exchanges heat in low level
Device water return pipeline increases small-size shaft of the invention and stretches through-flow kaplan type turbine electricity generation system and quantity of circulating water intelligent regulating system,
These energy wasted originally can be made full use of.
Detailed description of the invention:
Fig. 1 is one of structure chart of the invention.
Fig. 2 is the two of structure chart of the invention.
Fig. 3 is control system block diagram of the invention.
Fig. 4 is implementation structure chart of the invention.
Specific embodiment:
Fig. 1 is the common cooling tower circulating water system for having intermediate hot-tub, and usually motor 2 drives water pump 3,
The water of water cooling pond 1 is sent to heat exchanger 5 by upper jellyfish pipe 4, the equipment or material of cooling requirement cooling are flowed out from heat exchanger 5
Hot water hot-tub 14 is flowed to by water return pipeline 6, it is cooling to be extracted into cooling tower 12 by heat-exchanger pump 15, falls into cold water after hot water is cooling
Pond 1, then use is pumped by the circulation of water pump 3.The embodiment of the technology is to increase a power generation bypass 20 on this system, should
Power generation bypass 20 is equipped with the hydraulic turbine 8 and generator 9 and power generation control 10, working principle this be: 7 He of Open valve
11, valve 13 is closed, motor 2 drives water pump 3, the water of water cooling pond 1 is sent to heat exchanger 5, cooling requirement by upper jellyfish pipe 4
The equipment or material of cooling, the hot water flowed out from heat exchanger 5 then flows into hot-tub 14 by the hydraulic turbine 8 of power generation bypass, by heat
Water pump 15 is extracted into the cooling of cooling tower 12, water cooling pond 1 is fallen into after hot water is cooling, then pump use by the circulation of water pump 3.The hydraulic turbine will be
The water energy more than needed of system is converted to the power generation of kinetic energy driven generator 9.
Fig. 2 is a common cooling tower circulating water system without intermediate hot-tub, and usually motor 2 drives water pump
3, the water of water cooling pond 1 is sent to heat exchanger 5 by upper jellyfish pipe 4, the equipment or material of cooling requirement cooling are flowed from heat exchanger 5
Hot water out flows to the cooling of cooling tower 12 by water return pipeline 6, then by upper tower water lines 18, falls into water cooling pond after hot water is cooling
1, then use is pumped by the circulation of water pump 3.The embodiment of the technology is to increase a power generation bypass 20, the hair on this system
Electricity bypass 20 is equipped with the hydraulic turbine 8 and generator 9 and power generation control 10, working principle this be: Open valve 7 and 11,
Valve 13 is closed, motor 2 drives water pump 3, and the water of water cooling pond 1 is sent to heat exchanger 5, cooling requirement drop by upper jellyfish pipe 4
Temperature equipment or material, from heat exchanger 5 flow out hot water by power generation bypass the hydraulic turbine 8 flow into again upper tower water lines 18 again to
It is cooling in cooling tower 12, water cooling pond 1 is fallen into after hot water is cooling, then use is pumped by the circulation of water pump 3.The hydraulic turbine is had more than needed system
Water energy is converted to the power generation of kinetic energy driven generator 9.
Shown in quantity of circulating water intelligent regulating device Fig. 3 in the system, it can be acquired respectively by temperature sensor A, B, C, D
Water temperature, the temperature of the relevant device of heat exchanger 5, the water temperature of water return pipeline 6 of upper jellyfish pipe 4 are converted to the readable data letter of PLC
Number, input to PLC control unit processing, be then output to electronic control unit, control former water return pipeline electrically operated valve 13 and into
Water power movable valve 7 and water outlet electrically operated valve 11 and hydraulic turbine electric controller and power generation control.It is cold according to recirculated water
But an economic temperature range of operation is arranged in the requirement of equipment and technique, when the data of temperature sensor A, B, C, D acquisition become
Change, for example, it is less than normal when, PLC control unit by the hydraulic turbine electric motor drive unit control reduce the hydraulic turbine water amount, thus
So that system pressure is become larger, so that water pump actual motion lift is become larger, pump capacity is made to become smaller, to make the water temperature of jellyfish pipe 4, change
The temperature of the relevant device of hot device 5, the water temperature of water return pipeline 6 are returned in the economical operation temperature range of setting；Conversely, when temperature
When degree sensors A, the data variation of B, C, D acquisition are bigger than normal, PLC control unit is increased by the control of hydraulic turbine motor control unit
The water amount of the big hydraulic turbine makes water pump actual motion lift become smaller, pump capacity is made to become larger so that system pressure be made to become smaller, from
And so that the water temperature of jellyfish pipe 4, the temperature of the relevant device of heat exchanger 5, the water temperature of water return pipeline 6 is returned to the economic of setting and transport
Within the scope of trip temperature；To make pump motor power corresponding change, i.e. pump motor power consumption corresponding change, consume water pump
Electricity is more economical.Temperature sensor can use PT100 or Cu50.
Fig. 4 is the example that a set of power generation bypass is installed in the upper tower tube road 18 of circulating cooling system.Former recirculated water
System, hot water pass through upper cooling into cooling tower 12 after valve 13, and after increasing power generation bypass, normal condition closes valve 13, time
Hot water in water lines 6 enters small-sized tubular turbine 8 by valve 7, and small-sized tubular turbine 8 converts system overbottom pressure
It generates electricity for the kinetic energy driven generator 9 of rotation, is connected to the grid by power generation control 10, has recycled the water of system wastes
Can, reach energy-efficient purpose.Hot water is entered behind upper tower tube road 18 by valve 11 above to cold after small-sized tubular turbine 8
But cooling in tower 12.When ambient air temperature reduce or output reduce, the quantity of circulating water intelligent regulating device of power generation control 10,
The temperature acquisition data acquired by temperature sensor will reduce, and PLC control unit is led to according to temperature collecting cell data operation
It crosses the hydraulic turbine motor control unit control hydraulic turbine and reduces water amount, meanwhile, because the reduction of hydraulic turbine water makes system pressure liter
Height increases water pump actual motion lift, reduces pump capacity, and pump motor power consumption accordingly reduces, i.e. water pump electricity
Motivation power consumption accordingly reduces, thus reduce system power consumption, meanwhile, the pressure more than needed of system has sufficiently been recycled in power generation bypass again
Can, which doubles than conventional recycle water system fractional energy savings, and it is even more, therefore to saving energy, lowering energy consumption and reducing pollutants discharge
With Great significance.In addition, when power generation control 10 breaks down, PLC can be certainly by being configured to PLC
Dynamic control valve 13 is opened, and valve 7 and valve 11 are closed, and the hydraulic turbine 8 and generator 9 shut down, after hot water passes through valve 13
On it is cooling into cooling tower 12, guarantee that recirculated water is unimpeded, on production without influence.It is not only energy-efficient to solve circulation, but also
Safe and reliable problem.
When system overbottom pressure is higher, the small-size shaft in the power generation bypass, which stretches tubular turbine 8, can use mixed-flow
The hydraulic turbine replaces.
Traditional circulation energy conservation frequency converter is to pump motor frequency conversion, although can economize on electricity, the height of frequency converter
Subharmonic is larger to power grid interference, increases service life reduction to electric motor overheating, power consumption itself is unrestrained instead when water-pump excess is little
Power-consuming, return water overbottom pressure cannot recycle.Although hydraulic turbine of cooling tower can recycle overbottom pressure, temperature cannot be recycled and change waste at any time
Overbottom pressure, moreover, winter cooling tower itself cannot recycle overbottom pressure when not needing machine power exhausting.
The present invention increases one or more bypasses on common recirculating cooling water system, and water wheels hair is equipped in bypass
Motor group, a quantity of circulating water intelligent regulating device is also added on recirculating cooling water system, and specific structure is that motor 2 drives
The water of water cooling pond 1 is sent to heat exchanger 5, the equipment or material of cooling requirement cooling, from heat exchanger by upper jellyfish pipe 4 by water pump 3
The hot water of 5 outflows flow to hot-tub 14 by water return pipeline 6, and it is cooling to be extracted into cooling tower 12 by heat-exchanger pump 15, or from heat exchanger 5
The hot water of outflow flows into the cooling of cooling tower 12 by upper tower water lines 18 again by water return pipeline 6, falls into cold water after hot water is cooling
Pond 1, then use is pumped by the circulation of water pump 3.The present invention is to increase power generation on the water return pipeline 6 of the hot water flowed out from heat exchanger 5
Bypass 20, or increase power generation bypass 20 in the upper tower water lines 18 for flowing into cooling tower 12.
The power generation bypass 20 stretches tubular turbine 8 and generator 9 and power generation control 10 comprising small-size shaft,
Electrically operated valve 13 is set on former water return pipeline, setting water inlet electrically operated valve 7 and water outlet motor-driven valve in hydraulic turbine inlet and outlet pipe
Door 11.
Outside the generator control panel that the power generation control 10 can use common small hydropower station general, also increase
Quantity of circulating water intelligent regulating device as shown in Figure 3, the device acquire circulation pipeline by several temperature sensors
It with the temperature of equipment, is linked into temperature collecting cell and is converted to the readable data-signal of PLC, input to PLC control unit processing,
It is then output to electric drive unit, controls former water return pipeline electrically operated valve 13 and water inlet electrically operated valve 7 and water outlet electrically operated valve
11 and hydraulic turbine electric controller and power generation control.The principle of the quantity of circulating water intelligent regulating device is according to circulation
The requirement of water cooled equipment and technique, is arranged an economic temperature range of operation, PLC control unit is according to temperature acquisition list
Metadata passes through the water amount of electric valve driving unit and the hydraulic turbine motor control unit control hydraulic turbine in real time, meanwhile,
Because the variation of hydraulic turbine water changes system pressure, changes water pump actual motion lift, change pump capacity, water pump is electronic
Machine power corresponding change, i.e. pump motor power consumption corresponding change.
Claims (4)
1. energy-saving recirculating cooling water system, motor (2) drives water pump (3), and the water of water cooling pond (1) is passed through upper jellyfish pipe
(4) it is sent to heat exchanger (5), the equipment or material of cooling requirement cooling, the hot water flowed out from heat exchanger are flowed by water return pipeline (6)
To hot-tub (14), cooling tower (12) cooling is extracted by heat-exchanger pump (15), or pass through return pipe from the hot water that heat exchanger flows out
Road flows into cooling tower cooler by upper tower water lines (18) again, and water cooling pond is fallen into after hot water is cooling, then is pumped and make by water pump circulation
With, which is characterized in that increase power generation bypass (20) on the water return pipeline of the hot water flowed out from heat exchanger, or flows into cooling tower
Upper tower water lines on increase power generation bypass (20), the described power generation bypass is controlled comprising the hydraulic turbine (8) and generator (9) and power generation
Device (10) processed, the hydraulic turbine (8) they are that small-size shaft stretches tubular or mixed-flow, and electrically operated valve (13) are arranged on water return pipeline,
In the hydraulic turbine inlet and outlet pipe setting water inlet electrically operated valve (7) and be discharged electrically operated valve (11), the power generation control by
The common general generator control panel of small hydropower station and quantity of circulating water intelligent regulating device composition, the quantity of circulating water are intelligently adjusted
Regulating device acquired respectively by four temperature sensors the water temperature of jellyfish pipe (4), heat exchanger (5) relevant device temperature, return
The water temperature of water lines (6) is converted to the readable data-signal of PLC control unit, inputs to PLC control unit processing, then defeated
Out to electronic control unit, controls electrically operated valve (13) and water inlet electrically operated valve (7) on water return pipeline and be discharged electrically operated valve
(11) and hydraulic turbine electric controller and power generation control it, is cooled the requirement of equipment and technique according to recirculated water, setting
One economic temperature range of operation, when the data variation of four temperature sensors acquisition is less than normal, PLC control unit passes through water
The water amount that the control of turbine electronic control unit reduces the hydraulic turbine makes water pump actual motion lift so that system pressure be made to become larger
Become larger, pump capacity is made to become smaller, to make the water temperature of jellyfish pipe (4), the temperature of the relevant device of heat exchanger (5), return pipe
The water temperature on road (6) is returned in the economical operation temperature range of setting；Conversely, when the data variation of four temperature sensors acquisition
When bigger than normal, PLC control unit increases the water amount of the hydraulic turbine by the control of hydraulic turbine electronic control unit, to make system pressure
Become smaller, so that water pump actual motion lift is become smaller, pump capacity is made to become larger, to make the water temperature of jellyfish pipe (4), heat exchanger (5)
The temperature of relevant device, the water temperature of water return pipeline (6) is returned in the economical operation temperature range of setting；To keep water pump electric
Motivation power corresponding change, i.e. pump motor power consumption corresponding change.
2. energy-saving recirculating cooling water system according to claim 1, which is characterized in that the hot water flowed out from heat exchanger
Water return pipeline flow into the upper tower water lines of cooling tower through electrically operated valve, electrically operated valve both ends be respectively set into water electrically operated valve and
The inlet and outlet pipes of the electrically operated valve connection hydraulic turbine are discharged, the hydraulic turbine is connect with generator drive gear, generator and power generation control
Connection.
3. energy-saving recirculating cooling water system according to claim 1, which is characterized in that the heat flowed out from heat exchanger
The water return pipeline of water flows into hot-tub (14) through electrically operated valve, is extracted into cooling tower cooler by heat-exchanger pump (15), electrically operated valve into
Water end (W.E.) is connected through the water inlet pipe of water inlet electrically operated valve and the hydraulic turbine, and the outlet pipe of the hydraulic turbine connects through water outlet electrically operated valve and hot-tub
It connects, the hydraulic turbine is connect with generator drive gear, and generator is connect with power generation control.
4. energy-saving recirculating cooling water system according to claim 1, which is characterized in that increase by one on water return pipeline
A or several power generation bypasses (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610915385.3A CN106500521B (en) | 2016-10-21 | 2016-10-21 | Energy-saving recirculating cooling water system |
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| CN201610915385.3A CN106500521B (en) | 2016-10-21 | 2016-10-21 | Energy-saving recirculating cooling water system |
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| CN107014220A (en) * | 2017-05-19 | 2017-08-04 | 南京腾图节能科技有限公司 | A kind of energy-conservation cooling circulating water device for automatically adjusting temperature |
| CN107237714A (en) * | 2017-06-12 | 2017-10-10 | 重庆堪文节能科技有限公司 | The electricity generation system reused for recirculated water |
| CN108444184A (en) * | 2018-03-15 | 2018-08-24 | 十九冶成都建设有限公司 | Mixing plant Hot Cement cooling system and cool-down method |
| CN109237960A (en) * | 2018-09-27 | 2019-01-18 | 陈伟 | Energy saving water turbine type circulating water cooling tower |
| CN110130436B (en) * | 2019-06-06 | 2021-06-04 | 杨广平 | Intelligent water energy circulation power-saving system |
| CN110145919A (en) * | 2019-06-20 | 2019-08-20 | 上海宝钢节能环保技术有限公司 | A kind of power-economizing method of recirculating cooling water system |
| WO2021003540A1 (en) * | 2019-07-11 | 2021-01-14 | Santos Luis Carlos Mendes | Hydroelectric microturbine model 3-a |
| CN110528016B (en) * | 2019-09-30 | 2024-04-16 | 长江勘测规划设计研究有限责任公司 | Device for generating electricity and producing hydrogen by utilizing residual pressure of hydropower station cooling water supply system |
| CN111609727A (en) * | 2020-05-25 | 2020-09-01 | 江苏省同远节能科技有限公司 | Energy-saving cooling circulating water system and working method thereof |
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| GB0613088D0 (en) * | 2006-07-01 | 2006-08-09 | Green Donald | Power generation |
| CN101021197A (en) * | 2006-11-22 | 2007-08-22 | 王岗 | Blast furnace cooling water backwater top pressure power generation |
| CN201071782Y (en) * | 2007-03-30 | 2008-06-11 | 银虹科技(深圳)有限公司 | Complementary energy recovery utilization device used for industrial cycle water |
| CN101666283A (en) * | 2009-09-25 | 2010-03-10 | 湖北华强化工集团有限公司 | Cooling tower circulating water excess pressure utilization device |
| CN102654097B (en) * | 2011-03-02 | 2015-10-28 | 上海福思特流体机械有限公司 | Industrial circulating water Intelligent residual pressure recycling device and using method thereof |
| CN203081642U (en) * | 2012-12-24 | 2013-07-24 | 重庆堪文节能科技有限公司 | Water turbine water supply make-up system and cooling tower with same |
| CN203443473U (en) * | 2013-07-17 | 2014-02-19 | 深圳百时得能源环保科技有限公司 | Open type industrial cooling water system energy efficiency control device |
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