CN106121898B - Recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control - Google Patents
Recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control Download PDFInfo
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- CN106121898B CN106121898B CN201610518823.2A CN201610518823A CN106121898B CN 106121898 B CN106121898 B CN 106121898B CN 201610518823 A CN201610518823 A CN 201610518823A CN 106121898 B CN106121898 B CN 106121898B
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- Prior art keywords
- turbine
- generator units
- source control
- electric source
- intelligent electric
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Classifications
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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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- 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
Abstract
The present invention relates to a kind of recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control, including turbine-generator units, cooling tower, power grid, the turbine-generator units connect the blower of cooling tower by intelligent electric source control system, intelligent electric source control system is also connected with power grid, turbine-generator units generate electricity can and power grid institute for electric energy by intelligent electric source control system integration be output to drive blower fan of cooling tower motor, and the electricity preferentially issued using turbine-generator units, insufficient section are then supplemented by power grid.The method have the characteristics that blower power supply economize on electricity intelligent control and its to the optimization design of complete cooling system, get rid of the limitation in season.Its key technology is the integrated monitoring and control energized with power grid of consuming energy to hydraulic turbine production capacity, blower, makes turbine-generator units in different flow and different pressures, and intelligence control system can the required stable power of fan offer.
Description
Technical field
The present invention relates to a kind of recirculated cooling water hydraulic recovery system of cooling tower, especially a kind of intelligent electric source control
Recirculated cooling water hydraulic recovery energy conserving system.
Background technique
Cooling tower be it is main by convection current and evaporation and heat-exchange by the waste heat discharge in recirculated cooling water to general with air
Mechanical equipment is widely used in the industries such as metallurgy, petroleum, chemical industry, power, weaving, and is extended to again from industry civilian, such as answers
For building central air conditioner system etc..Due to the particularity of certain cooling systems, cooling water can have a higher overbottom pressure, and with
Season be more big changes with load difference, generally in 5 ~ 30mH2O, minority can reach 50mH2O or so, belong in low water
Head complementary energy system.Want to meet the condition that sprays in cooling tower, needed pressure is 1 ~ 2mH at spray outlet2O, at runtime usually
It is dissipated using sinker, leads to energy dissipation.
Now, can substantially be summarized as three kinds using technology for industrial circulating cooling water overbottom pressure: hydraulic turbine blower is direct-connected
The surplus energy utility mode of mode, double drive hydraulic turbine of cooling tower mode and the small-sized or miniature outside power transmission of hydroturbine generator[2]。
The direct-connected mode of hydraulic turbine blower be it is with shaft coupling that the hydraulic turbine and blower is direct-connected, cooling water complementary energy pressure is converted to
The mechanical energy of the hydraulic turbine is to drive blower to work.When surplus water head can not meet energy needed for fan electromotor operates, if still
Expected cooling effect can be then not achieved using this mode, motor must be accessed at this time to maintain cooling tower to work normally, and at this time
The hydraulic turbine will become the extra load of motor, so that more power consumption.And the hydraulic turbine is mounted in tower, is increased to a certain extent
The windage of cooling tower.Domestic existing research and application are mostly that there has been no solve good plan so far to drawbacks described above for which.
Double drive hydraulic turbine of cooling tower mode attempts to couple the hydraulic turbine with blower by clutch, to solve more than cooling tower
Problem can be efficiently used.But its shortcomings that, is to be difficult to accomplish that (power that i.e. hydraulic turbine provides provides two kinds of power with motor
Power) can simple superposition, without internal loss.And how to accomplish the effective of the hydraulic turbine, blower, motor and retarder
It connects, the hydraulic turbine and blower are not yet captured so far the problems such as how effectively start and which kind of hydraulic turbine are suitble to double drive condition.
The surplus energy utility mode of the small-sized or miniature outside power transmission of hydroturbine generator has been abandoned can be directly by turbine mechanical
For the idea of fan, but mechanical energy is switched into electric energy by turbine-generator units and resupplies fan electromotor.But it is existing
Such scheme is want to realize with energy storage and grid-connected mode more.However it is grid-connected be not intended to and can and, realization process it is highly difficult, at
This height, can obtain relevant departments allows to be also a big problem.
Summary of the invention
The present invention is to provide for a kind of recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control, this is
System without to turbine-generator units institute generated energy carry out storage with it is grid-connected, when turbine-generator units generate electricity can deficiency blower it is electric
Motivation operating is taken, and insufficient section is then supplemented by dispatch from foreign news agency, advantage of lower cost, when adapting to Various Seasonal and different load
Overbottom pressure variation or changes in flow rate, complementary energy can be fully used.
To achieve the above object, the technical scheme is that a kind of recirculated cooling water based on intelligent electric source control
Hydraulic recovery energy conserving system, including turbine-generator units, cooling tower, power grid, the turbine-generator units pass through intelligent power supply
Control system connects the motor of blower fan of cooling tower, and intelligent electric source control system is also connected with power grid, and turbine-generator units are sent out
Electric energy and power grid the fan electromotor of driving cooling tower is output to by the integration of intelligent electric source control system for electric energy, and it is excellent
The electric energy first issued using turbine-generator units, insufficient section are then supplemented by power grid.
Turbine-generator units inlet and outlet setting pressure detector, controls turbine-generator units by the pressure signal detected
Revolving speed, so that the hydraulic turbine is maintained stable outlet pressure, to make cooling water that can uniformly spray in cooling tower.
The generating set uses permanent magnet synchronous motor, keeps system more energy-efficient.
The intelligent electric source control system includes dsp controller, ipm motor driving plate, and ipm motor driving plate uses
IPM inverter circuit generates the motor of field drives blower with three phase inverter bridge；The circuit of the intelligent electric source control system
Middle setting circuit protection module detects electric current using filter circuit, by dsp controller control, adjusts, avoids water wheels
When generating set generated energy is greater than fan electromotor actual demand, electric current is excessive to burn circuit and intelligent control device.
The beneficial effects of the present invention are:
Difference with the prior art feature of the present invention: the method have the characteristics that blower power supply economize on electricity intelligent control and
Its optimization design to complete cooling system, gets rid of the limitation in season.Its key technology is to hydraulic turbine production capacity, blower consumption
The integrated monitoring and control that can be energized with power grid, make turbine-generator units in different flow and different pressures, intelligence
Control system can the required stable power of fan offer.Compared with the mode direct-connected with blower with the hydraulic turbine, complementary energy is insufficient
When, the invention avoids the hydraulic turbines to become extra load, solves the problems, such as that complementary energy cannot be efficiently used.Meanwhile it is of the invention
The hydraulic turbine is placed in the outer pipeline of cooling tower, without being placed in tower, not will increase the windage of cooling tower.With double drive cooling tower water
Turbine mode is compared, and the present invention makes hydraulic turbine production capacity and external electric energy simple superposition, makes not generate internal loss between the two.With
The other forms hydraulic turbine power generation mode compare, the present invention be not necessarily to hydraulic turbine institute generated energy carry out storage with it is grid-connected, work as water wheels
The operating of generating set production capacity deficiency blower is taken, and insufficient section is then supplemented by dispatch from foreign news agency, advantage of lower cost.
Advantages of the present invention:
1. compensate for the deficiency of conventional method, breach with the surplus energy utility mode of hydraulic turbine driving fan by season and negative
Carry the restriction of variation.
2. energy-saving effect is obvious, cost is relatively low, and payback period is short, cuts down expenses for user.
It, without human intervention can the equilibrium of supply and demand 3. control module is perfect.
4. this programme can be compatible with transformation is convenient to new and old cooling tower systems.
5. contemporary industry system is big to the demand of cooling tower, existing installation amount is big, Yong Huduo, the application prospect of this product
It is wide.
Detailed description of the invention
Fig. 1 is the recirculated cooling water hydraulic recovery energy conserving system schematic diagram of the invention based on intelligent electric source control；
Fig. 2 is the hardware block diagram of control module of the invention；
Fig. 3 is software block diagram of the invention.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
It is illustrated in fig. 1 shown below, a kind of recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control, including water
Turbine generator group 1, cooling tower 2, intelligent electric source control system 3, power grid 4 etc..Generator uses permanent magnet synchronous motor, makes system
It is more energy-efficient.
Turbine-generator units 1 connect the fan electromotor of cooling tower 2, intelligent electric by intelligent electric source control system 3
Source control system 3 is also connected with power grid 4.Cooling water supplies the power generation of turbine-generator units 1, hydrogenerator first after heat user
Group 1 generate electricity can and power grid 4 for electric energy, by being exported by the integration of the intelligent electric source control system 3 of core of IPM and DSP
To the fan electromotor of cooling tower 2, the fan electromotor of the preferential electric energy supply cooling tower 2 issued using turbine-generator units 1
Operating, insufficient section are then supplemented by power grid 4, it is thus achieved that the wide area to overbottom pressure utilizes.In order to meet the need of cooling tower spray
Pressure is sought, pressure detector is provided in the inlet and outlet of turbine-generator units 1, water wheels hair is controlled by the pressure signal detected
The revolving speed of motor group 1 makes the hydraulic turbine maintain stable outlet pressure, to make cooling water that can uniformly spray in cooling tower 2.
As shown in Fig. 2, the control module that intelligent electric source control system 3 uses is divided into two parts, first part is core
Dsp controller, second part are ipm motor driving plate.Ipm motor driving plate uses IPM inverter circuit, is produced with three phase inverter bridge
Magnetisation field driving motor.In addition it is provided with circuit protection module in circuit, electric current is detected using filter circuit, is passed through
Dsp controller control is adjusted, and when water turbine-generator units generated energy being avoided to be greater than fan electromotor actual demand, electric current is excessive
Burn circuit and intelligent control device.Each module can control motor and carry out four quadrant running, used in the motor of blower
Module work in motoring condition, make its constant speed rotary.Module used in generating set works in generating state, makes its moment of resistance
It is constant to always work in generator most the motor implementation closed loop feedback in generating state using pressure as feedback signal
How excellent generating efficiency point, change but regardless of water flow pressure).Wherein software section (shown in Fig. 3) is the exploitation ring in CSS3.3
It is aided with Altium Designer Summer 09 under border to be designed.
Key technology of the invention is the integrated monitoring and control energized to hydraulic turbine production capacity, blower energy consumption with power grid
System, make turbine-generator units in different flow and different pressures, intelligence control system can fan provide needed for
Stable power.
Technical characterstic of the invention:
(1) electric energy and the power grid institute that turbine-generator units issue are for electric energy, by using IPM and DSP as the intelligence of core
Power-supply management system integration is output to fan electromotor, and preferentially supplies blower motor using the electric energy that turbine-generator units issue
Operating, insufficient section are then supplemented by power grid.
(2) in order to meet pressure needed for cooling tower sprays, setting pressure detecting is imported and exported in the hydraulic turbine, passes through what is detected
Pressure signal controls the revolving speed of turbine-generator units, so that the hydraulic turbine is maintained stable outlet pressure, to make cooling water in cooling
It can uniformly be sprayed in tower.Generating set uses permanent magnet synchronous motor, keeps system more energy-efficient.
(3) it is provided with circuit protection module in circuit, electric current is detected using filter circuit, is controlled by DSP
Device control is adjusted, when turbine-generator units generated energy being avoided to be greater than fan electromotor actual demand, electric current is excessive burn circuit and
Intelligent control device.
(4) each module can control motor and carry out four quadrant running, and the work of module used in blower motor is in electricity
Dynamic state, makes its constant speed rotary.Module used in generator works in generating state, keeps its moment of resistance constant using pressure as anti-
Feedback signal implements closed loop feedback to the motor in generating state, generator is made to always work in optimal power generation efficient point, without
How pipe water flow pressure changes.
Claims (2)
1. a kind of recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control, including turbine-generator units (1),
Cooling tower (2), power grid (4), it is characterised in that: the turbine-generator units (1) are connected by intelligent electric source control system (3)
The motor of cooling tower (2) blower, intelligent electric source control system (3) are also connected with power grid (4), and turbine-generator units (1) are sent out
Electric energy and power grid the motor of driving blower fan of cooling tower is output to by intelligent electric source control system (3) integration for electric energy,
And the electricity preferentially issued using turbine-generator units (1), insufficient section are then supplemented by power grid；Realize hydraulic turbine production capacity, blower consumption
The integrated monitoring and control that can be energized with power grid, make turbine-generator units in different flow and different pressures, by intelligence
The stable power needed for power control system (3) fan provides can be changed；Turbine-generator units (1) the inlet and outlet setting pressure
Force detector makes the hydraulic turbine maintain stable outlet by the revolving speed of pressure signal control turbine-generator units (1) detected
Pressure, to make cooling water that can uniformly spray in cooling tower；The intelligent electric source control system (3) include dsp controller,
Ipm motor driving plate, ipm motor driving plate use IPM inverter circuit, generate the electronic of field drives blower with three phase inverter bridge
Machine；Circuit protection module is set in the circuit of the intelligent electric source control system (3), electric current is examined using filter circuit
It surveys, by dsp controller control, adjusts, when turbine-generator units generated energy being avoided to be greater than fan electromotor actual demand, electric current
It is excessive to burn circuit and intelligent control device.
2. the recirculated cooling water hydraulic recovery energy conserving system according to claim 1 based on intelligent electric source control, special
Sign is: the generating set (1) uses permanent magnet synchronous motor, keeps system more energy-efficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518823.2A CN106121898B (en) | 2016-07-04 | 2016-07-04 | Recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518823.2A CN106121898B (en) | 2016-07-04 | 2016-07-04 | Recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121898A CN106121898A (en) | 2016-11-16 |
| CN106121898B true CN106121898B (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610518823.2A Active CN106121898B (en) | 2016-07-04 | 2016-07-04 | Recirculated cooling water hydraulic recovery energy conserving system based on intelligent electric source control |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202014219U (en) * | 2010-12-30 | 2011-10-19 | 海信（山东）空调有限公司 | Direct-current brushless fan motor driver and air conditioner adopting driver |
| CN103453783A (en) * | 2013-08-19 | 2013-12-18 | 河海大学 | Cooling tower driven and operated by stored energy power source |
| EP2772645A1 (en) * | 2011-10-29 | 2014-09-03 | Yunhe Deng | Energy-storing and power-generating system and method for vertical-axis wind generator |
| CN104729316A (en) * | 2015-03-16 | 2015-06-24 | 芜湖凯博实业股份有限公司 | Condensing tower with generator and control method thereof |
| CN205066496U (en) * | 2015-09-07 | 2016-03-02 | 深圳万城节能股份有限公司 | Energy saving cooling tower |
-
2016
- 2016-07-04 CN CN201610518823.2A patent/CN106121898B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202014219U (en) * | 2010-12-30 | 2011-10-19 | 海信（山东）空调有限公司 | Direct-current brushless fan motor driver and air conditioner adopting driver |
| EP2772645A1 (en) * | 2011-10-29 | 2014-09-03 | Yunhe Deng | Energy-storing and power-generating system and method for vertical-axis wind generator |
| CN103453783A (en) * | 2013-08-19 | 2013-12-18 | 河海大学 | Cooling tower driven and operated by stored energy power source |
| CN104729316A (en) * | 2015-03-16 | 2015-06-24 | 芜湖凯博实业股份有限公司 | Condensing tower with generator and control method thereof |
| CN205066496U (en) * | 2015-09-07 | 2016-03-02 | 深圳万城节能股份有限公司 | Energy saving cooling tower |
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| Publication number | Publication date |
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| CN106121898A (en) | 2016-11-16 |
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