CN105953625A - Waste heat utilization system and method for electromagnetic eddy current brake - Google Patents
Waste heat utilization system and method for electromagnetic eddy current brake Download PDFInfo
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- CN105953625A CN105953625A CN201610287088.9A CN201610287088A CN105953625A CN 105953625 A CN105953625 A CN 105953625A CN 201610287088 A CN201610287088 A CN 201610287088A CN 105953625 A CN105953625 A CN 105953625A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
- F25D1/02—Devices using naturally cold air or cold water using naturally cold water, e.g. household tap water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a waste heat utilization system and method for an electromagnetic eddy current brake. The waste heat utilization system comprises the electromagnetic eddy current brake and sea water desalination equipment. A heat exchange constant temperature device is connected between the electromagnetic eddy current brake and the sea water desalination equipment and comprises a heat exchange module, a thermostatic valve and a buffer water tank module. The heat exchange module is internally provided with a first heat exchanger and a second heat exchanger. The thermostatic valve is internally provided with a temperature sensor. The buffer water tank module is internally provided with a buffer water storage tank, a flow sensor and a water level detection sensor. The heat exchange constant temperature device further comprises a controller. The controller controls the water outlet flow and the water level of the buffer water storage tank as well as the water outlet temperature of the thermostatic valve according to collected data of the temperature sensor, collected data of the flow sensor and collected data of the water level detection sensor. According to the waste heat utilization system and method for the electromagnetic eddy current brake, waste heat produced in the working process of the electromagnetic eddy current brake is collected and utilized, the loss caused by energy conversion is avoided, and energy efficient utilization is achieved.
Description
Technical field
The present invention relates to Waste Heat Reuse field, particularly relate to the waste heat utilization system of a kind of electromagnetic eddy current brake
And method.
Background technology
Market survey in 2010 shows, marine oil and gas total output account for the ratio of global Oil Gas total output from
20% in 1997 rises to current more than 40%, and wherein deep-sea oil gas yield accounts for marine oil and gas yield
More than 30%.The yield of marine oil and gas and reserves are always maintained at comparatively fast increasing, and have driven marine drilling platform city
The development of field.Within 2014, You Fu company of U.S. Baker Hughes represents, whole world offshore drilling platform quantity
Being continuously increased, March, platform sum increased to 388, increased compared with the 369 of the same period upper one year
5.2%, offshore drilling platform quickly grows.
Electromagnetic eddy current brake system is that offshore oilfield drilling platforms is stopped in order to the auxiliary regulating drilling tool lowering velocity
Car device, this system works 18～20 hours every day, and during work, eddy current will cause at rotor inner surface in a large number
Heat, need to cool down in time.Directly use water-cooling pattern that it is cooled down on platform, and cool down latter 70 DEG C
The spent hot water of left and right is directly drained into ocean, causes waste and the ocean thermal pollution of spent hot water's resource.
Meanwhile, on platform, fresh water demand is about 800 tons (as a example by the platforms of the South Sea 981) weekly,
On current platform, fresh water supply mode mainly has boats and ships to transport supply and desalinization supply two ways.
Boats and ships shipment and delivery cost is high, is easily affected by weather, and supply not in time, therefore seldom uses this in actual production
The mode of kind；And the low-pressure distillation mode that desalinization is commonly used has, and desalination efficiency is high, device is less, maintenance
Simple advantage, however it is necessary that and use with thermal source collocation, energy consumption is big, and restriction is stronger.Adopt the most at present
Method for desalting seawater cut both ways.
Summary of the invention
The technical problem to be solved in the present invention is for drawbacks described above of the prior art, it is provided that one will
The used heat profit of the electromagnetic eddy current brake that electromagnetic eddy current brake system organically combines with seawater desalination system
Use system.
The technical solution adopted for the present invention to solve the technical problems is:
There is provided the waste heat utilization system of a kind of electromagnetic eddy current brake, including electromagnetic eddy current brake and desalinization
Equipment, connects heat exchange thermostat between the two；
This heat exchange thermostat includes heat exchange module, thermostatic valve, buffer tank module, wherein: described
Being provided with First Heat Exchanger and the second heat exchanger in heat exchange module, described thermostatic valve is built-in with temperature sensing
Device；Buffering storage tank, flow transducer and level detection sensor it is provided with in described buffer tank module；
This heat exchange thermostat also includes controller, and this controller is according to the temperature sensor gathered, flow sensing
Device, the water flow of Data Control buffer tank of level detection sensor and water level, and thermostatic valve
Leaving water temperature；
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger and carries out heat exchange, makes the first heat hand over
Raw material seawater temperature in parallel operation raises, and after heat exchange, spent hot water participates in circulation again, stops for electromagnetic eddy
Car cools down；Meanwhile, the high temperature strong brine that sea water desalting equipment ejects in the second heat exchanger with raw material
Sea water carries out second heat exchange, and the raw material seawater after temperature rises enters thermostatic valve, after reaching design temperature
Enter in sea water desalting equipment and carry out desalinization；The dense salt of high temperature that meanwhile sea water desalting equipment produces
Discharge into sea after water heat exchange.
In system of the present invention, this system also includes that a plurality of pipeline and pretreatment water tank, the first heat are handed over
No. 1 pipeline it is connected between parallel operation with electromagnetic eddy current brake；It is connected 2 between first heat exchanger and thermostatic valve
Number pipeline；No. 6 pipelines are connected between pretreatment water tank and the first heat exchanger；
Being connected No. 3 pipelines between second heat exchanger and thermostatic valve, the second heat exchanger sets with desalinization
No. 4 pipelines are connected between Bei；Water tank, water it is also associated with between electromagnetic eddy current brake and the first heat exchanger
Connected by No. 5 pipelines between case and the first heat exchanger；Second heat exchanger passes through No. 7 pipelines and 6
Number pipeline connects；
Raw material seawater is drawn into pretreatment water tank, and raw material seawater is flowing into 6 through flow divider after pretreatment
Number pipeline and No. 7 pipelines, respectively enter two heat exchangers；
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger through No. 1 pipeline and carries out heat exchange,
Making the raw material seawater temperature in the first heat exchanger raise, after heat exchange, spent hot water flows into No. 5 pipelines continuation ginsengs
Cooling down with being recycling in electromagnetic eddy current brake, raw material seawater enters No. 2 pipelines after heating up；Meanwhile, sea
The high temperature strong brine that water desalting plant ejects flows into No. 4 pipelines, and enters with the raw material seawater in No. 7 pipelines
Row second heat exchanges；Raw material seawater after temperature rises is entered thermostatic valve by No. 3 pipelines and No. 2 pipelines,
Under the control of the controller, thermostatic valve makes the homogeneous temperature of raw material seawater reach design temperature, and enters sea
Water desalting plant carries out desalinization；The high temperature strong brine heat exchange that meanwhile sea water desalting equipment produces
Rear discharge into sea.
In system of the present invention, the first heat exchanger and the second heat exchanger are heat-exchangers of the plate type.
In system of the present invention, described thermostatic valve also includes spool and motor；
The temperature data of Real-time Collection is transferred to controller by described temperature sensor, and controller is to temperature number
According to generating control signal drive stepping motor regulation and control valve core opening degree after processing, when outlet temperature is low
When setting requires, motor drives valve core movement, reduces the aperture of cold water outlet, increases hot water mouth's
Aperture, makes the hot water ratio of mixed water increase, and cold water ratio declines, and reaches setting value.
In system of the present invention, described heat exchange thermostat also includes man-machine numeral method interface,
Being arranged on the casing of described heat exchange thermostat, serial ports and control are passed through in described man-machine numeral method interface
Device processed connects.
In system of the present invention, described man-machine numeral method interface includes the man-machine display being connected
Main frame and color screen.
In system of the present invention, described sea water desalting equipment is vacuum boiling type fresh water generator, and described
Water inlet water pipe, water outlet water pipe and the high temperature of vacuum boiling type fresh water generator external heat exchange thermostat are dense
Brine outlet water pipe.
In system of the present invention, described motor is miniature 57 series motors.
The present invention also provides for a kind of Waste Heat Reuse method of electromagnetic eddy current brake, the method based on said system,
Specifically include following steps:
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger and carries out heat exchange, makes the first heat hand over
Raw material seawater temperature in parallel operation raises, and after heat exchange, spent hot water participates in circulation again, stops for electromagnetic eddy
Car cools down；
The high temperature strong brine that sea water desalting equipment ejects carries out two with raw material seawater in the second heat exchanger
Secondary heat exchange；
Controller collecting temperature sensor, flow transducer and the data of level detection sensor, and according to
The water flow of the Data Control buffer tank gathered and water level, and the leaving water temperature of thermostatic valve；
Raw material seawater after temperature rises enters thermostatic valve, when the water temperature in thermostatic valve reaches design temperature,
Enter in sea water desalting equipment and carry out desalinization；
Discharge into sea after the high temperature strong brine heat exchange that sea water desalting equipment produces.
The beneficial effect comprise that: the waste heat utilization system of electromagnetic eddy current brake of the present invention is to electromagnetism
The used heat produced in vortex brake system work process is collected and utilizes, and automatically controlled is set by a series of
The standby accurate control realized transmission intermediate range and terminal temperature, it is to avoid energy changes the loss caused,
Reach the efficient utilization of the energy.While ensureing seawater desalination system stable operation, improve sea water
The work efficiency of desalination system and aquifer yield, reduce power consumption required during its work, the effectively save energy,
Extend its service life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the waste heat utilization system of embodiment of the present invention electromagnetic eddy current brake；
Fig. 2 is the structural representation of embodiment of the present invention heat exchange thermostat；
Fig. 3 is the control block diagram of the waste heat utilization system of embodiment of the present invention electromagnetic eddy current brake；
Fig. 4 is embodiment of the present invention thermostatic control flow chart.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and
Embodiment, is further elaborated to the present invention.Should be appreciated that described herein being embodied as
Example only in order to explain the present invention, is not intended to limit the present invention.
The waste heat utilization system of the electromagnetic eddy current brake of the present invention is by electromagnetic brake system and sea water desalting equipment
Ingenious combination, is collected the used heat produced in electromagnetic eddy current brake work process and utilizes, it is to avoid
Energy changes the loss caused, and has reached the efficient utilization of the energy.
The waste heat utilization system of the electromagnetic eddy current brake of the embodiment of the present invention, as it is shown in figure 1, include electromagnetism
Vortex brake and sea water desalting equipment, connect heat exchange thermostat between the two；
This heat exchange thermostat includes heat exchange module, thermostatic valve, buffer tank module, wherein: described
Being provided with First Heat Exchanger and the second heat exchanger in heat exchange module, described thermostatic valve is built-in with temperature sensing
Device；Buffering storage tank, flow transducer and level detection sensor it is provided with in described buffer tank module；
This heat exchange thermostat also includes controller, and this controller is according to the temperature sensor gathered, flow sensing
Device, the water flow of Data Control buffer tank of level detection sensor and water level, and thermostatic valve
Leaving water temperature.
In the embodiment of the present invention, the first heat exchanger and the second heat exchanger are heat-exchangers of the plate type.
Described thermostatic valve also includes spool and motor；Described motor is miniature 57 series stepping electricity
Machine.
The temperature data of Real-time Collection is transferred to controller by described temperature sensor, and controller is to temperature number
According to generating control signal drive stepping motor regulation and control valve core opening degree after processing, when outlet temperature is low
When setting requires, motor drives valve core movement, reduces the aperture of cold water outlet, increases hot water mouth's
Aperture, makes the hot water ratio of mixed water increase, and cold water ratio declines, and reaches setting value.
Described heat exchange thermostat also includes man-machine numeral method interface, is arranged on described heat exchange constant temperature dress
On the casing put, described man-machine numeral method interface is connected with controller by serial ports.
Described man-machine numeral method interface includes man-machine display main frame and the color screen being connected.Color screen can be adopted
With ili9325-8pins-bbk 2.4 inch color screen；Described man-machine numeral method interface may be provided at institute
State on the casing of heat exchange thermostat.
Described sea water desalting equipment is vacuum boiling type fresh water generator, and described vacuum boiling type fresh water generator is external
The water inlet water pipe of heat exchange thermostat, water outlet water pipe and high temperature brine outlet water pipe.
As in figure 2 it is shown, this heat exchange thermostat includes a plurality of pipeline and pretreatment water tank, the first heat exchange
No. 1 pipeline it is connected between device with electromagnetic eddy current brake；No. 2 it are connected between first heat exchanger and thermostatic valve
Pipeline；No. 6 pipelines are connected between pretreatment water tank and the first heat exchanger；
No. 3 pipelines, the second heat exchanger and vacuum boiling type it is connected between second heat exchanger and thermostatic valve
No. 4 pipelines are connected between fresh water generator；It is also associated with water tank between electromagnetic eddy current brake and the first heat exchanger,
Connected by No. 5 pipelines between water tank and the first heat exchanger；Second heat exchanger passes through No. 7 pipelines and 6
Number pipeline connects；
Water supply pump by raw material seawater suction pretreatment water tank, raw material seawater after pretreatment through shunting
Valve flows into No. 6 pipelines and No. 7 pipelines, respectively enters two heat exchangers；
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger through No. 1 pipeline and carries out heat exchange,
Making raw material seawater temperature raise, after heat exchange, spent hot water flows into No. 5 pipelines and continues to participate in and be recycling in electromagnetism
Vortex brake cools down, and raw material seawater enters No. 2 pipelines after heating up；Meanwhile, vacuum boiling type fresh water generator row
High temperature strong brine out flows into No. 4 pipelines, and carries out second heat exchange with the raw material seawater in No. 7 pipelines；
Raw material seawater after temperature rises is entered thermostatic valve, in the control of controller by No. 3 pipelines and No. 2 pipelines
Under, thermostatic valve makes the homogeneous temperature of raw material seawater reach design temperature, and enters in sea water desalting equipment
Row desalinization；Discharge into sea after the high temperature strong brine heat exchange that meanwhile sea water desalting equipment produces.
The spent hot water that electromagnetic eddy current brake produces enters A plate type heat exchanger through No. 1 pipe, and water pump will simultaneously
Raw material seawater suction pretreatment water tank, raw material seawater is flowing into No. 6 pipes through flow divider after pretreatment
Road and No. 7 pipelines also respectively enter two plate type heat exchangers.
Electromagnetic eddy current brake spent hot water and raw material seawater carry out heat exchange, make raw material seawater temperature raise, change
After heat spent hot water flow into No. 5 pipelines continue to participate in be recycling in electromagnetic eddy current brake cooling, raw material seawater
No. 2 pipelines are entered after intensification.Meanwhile, the high temperature strong brine that vacuum boiling type fresh water generator ejects flows into 4
Number pipeline, and carry out second heat exchange with the raw material seawater in No. 7 pipelines.Raw material seawater after temperature rising
Entered constant-temperature water mixing valve by No. 3 pipelines and No. 2 pipelines, pass through constant-temperature water mixing valve so that it is homogeneous temperature reaches
To design temperature, enter in vacuum boiling type fresh water generator and carry out desalinization.Simultaneously high temperature strong brine
Discharge into sea is got final product after heat exchange.
Wherein, heat exchange thermostat have collected electromagnetic eddy current brake cooling system and fresh water maker system water outlet
Used heat, is the basic module of system, and it is mainly by least 2 heat exchanger devices (in the embodiment of the present invention
Use A plate type heat exchanger and B plate type heat exchanger) and respective line composition.Heat-exchangers of the plate type is
A kind of new type high efficient heat exchanger by a series of sheet metal closed assemblies with certain bellows-shaped.
The spent hot water that electromagnetic eddy current brake produces enters A plate type heat exchanger, simultaneously cold water through No. 1 pipeline
Raw material seawater is pressed into No. 6 pipelines by pump.After heat exchange, raw material seawater will heat up to T1, and by No. 2
Pipeline flows into constant-temperature water mixing valve.The high temperature strong brine simultaneously discharged after desalinization flows into No. 4 and manages and No. 7
Raw material seawater in pipe carries out second heat exchange at B plate type heat exchanger；After heat exchange, raw material seawater
Will heat up to T2, and flowed into constant-temperature water mixing valve by No. 3 pipelines.Schematic diagram is as shown in Figure 3.
Thermostatic valve take two-step evolution to improve constant-temperature effluent response speed, mainly include sensor, spool,
Motor, controller can use 51 single-chip microcomputers.
Hot sea water after thermoregulation knob sets arbitrary temp in prescribed limit, after heat exchange module heats up
Thermostat is entered respectively by No. 2 and No. 3 pipelines.Now the data of Real-time Collection are transmitted by thermostat
After being controlled processing to 51 single-chip microcomputers, drive stepping motor regulation and control valve core opening degree.Work as outlet temperature
When requiring less than setting, motor drives valve core movement, reduces the aperture of cold water outlet, increases hot water mouth
Aperture, make the hot water ratio of mixed water increase, cold water ratio declines, and reaches setting value；Otherwise in like manner.
Buffering storage tank is mainly by buffering storage tank, flow transducer, level detection sensor and monolithic
Machine forms.Wherein single-chip microcomputer can be selected for 51 single-chip microcomputers, and can share a piece of single-chip microcomputer with thermostatic valve.
Flow out the hot water of design temperature from thermostatic valve, be directly entered in buffering storage tank.Now examined by water level
Survey sensor and the flow transducer water level and water flow respectively to storage tank to be monitored, to reach real
Time detect and control to enter the purpose of discharge of vacuum boiling type fresh water generator, it is simple to coupling final stage vacuum boiling
Rise the normal mode of operation of formula fresh water generator.
The present invention is using 51 single-chip microcomputers as control system core, and its Main Function is: (1) receives temperature and adopts
The temperature signal that collection module gathers；(2) control signal of pump rotary speed is regulated；(3) discharge is monitored
Pulse signal.The temperature that single-chip microcomputer sets according to user, controls motor and adjusts cold and hot mouth of a river water inlet ratio
Example, reaches the purpose that output water temperature is constant.Meanwhile, temperature parameter, water flow, water storage tank water level etc.
Data are by numeral method, it is achieved man machine interface, facilitate user's moment to understand the ruuning situation of system.Its
Control module schematic diagram is as shown in Figure 3.
Temperature collect module
This module is mainly made up of DS18B20 sensor and signal processing circuit, it is achieved leaving water temperature controls.
Sea water through heat exchange carries out temperature detection, the cold and hot water inlet of real-time Transmission and the temperature of outlet
Carry out data process to 51 single-chip computer control systems, and by numeral method temperature, facilitate user real-time
Understand native system temperature conditions.
Thermostatic control module
This module takes two-step evolution, it is simple to improve constant-temperature effluent response speed.Mainly by temperature sensor,
Motor, spool and 51 single-chip microcomputers composition.
The first order, encapsulates two high accuracy DS18B20 sensors, the water temperature of Real-time Collection warm-cold inleting pipe.
Use two flow transducers to gather the flow of inlet water of warm-cold inleting pipe simultaneously, data are passed in real time 51
Single-chip microcomputer.Design discharge according to practical situation, set up math equation, then cold needed for program calculation
The ratio of hot water.By the rotation of 51 Single-chip Controlling motor regulation spools, reach to set leaving water temperature.
Again by Theoretical Calculation and experiment test, draw between hot and cold water water inlet ratio and motor angle of rotation
Relation, it is simple to the control to valve folding ratio of the programming realization motor.
The second level, Real-time Collection outlet temperature also judges whether to reach design temperature.If temperature is on the low side or
Person is higher, then error signal is transferred to 51 single-chip microcomputers, goes out the water inlet ratio of hot and cold water through program calculation,
Drive stepping motor regulates two mouth of pipe water inlet ratios.By the most repeatedly regulating, leaving water temperature is made to reach to set
Fixed temperature.Understand leaving water temperature in real time whether to meet set requirement for ease of user, by set water temperature with go out
Coolant-temperature gage shows and compares on three Digital sum pipes.
This device uses single-chip microcomputer closed loop control to improve control accuracy and system response time.Output water temperature
For master control signal, in order to determine final outflow water water temperature；Hot and cold water flow and water temperature are feedforward letter
Number, in order to carry out cold-hot water proportion preconditioning, two-step evolution improves response speed and the dynamic property of system.
Through experiment test, this device can reach the design requirement of output water temperature ± 1 DEG C.Its control flow such as Fig. 4 institute
Show.
Water level monitoring and system switching module
Water level detecting module is mainly by buffering storage tank, flow transducer, level detection sensor and letter
Number process circuit composition.By experiment selected thermostatted water flow, i.e. buffer tank flow of inlet water, the most real
Time detection enter vacuum boiling type fresh water generator discharge, i.e. buffer tank water flow.Owing to going out current
Amount can change with fresh water maker system duty, for ensureing that waste heat utilization system and vacuum boiling type make water
Machine system stable operation, the volume of appropriate design buffering storage tank, and the upper lower threshold value of water level is set,
By the water level of level detection sensor monitoring buffering storage tank the most in the reasonable scope.
Consider from secure context, devise system switching module, if higher than upper limit threshold in buffer tank,
Then 51 Single-chip Controlling centers control Mare Frigoris water suction pumps quit work, until water level is down to normal level；
If water level is less than secure threshold, then independent water supply pump is driven directly to extract Mare Frigoris water to ensure fresh water generator
Normal work；If abnormal conditions occurs in system hydraulic pressure, then it is judged to the system failure.Now total system is deposited
In potential safety hazard, 51 Single-chip Controlling total systeies quit work and drive buzzer warning.
Display module
This module utilizes 51 single-chip microcomputers, ili9325-8pins-bbk 2.4 inch color screen, to system constant temperature
The water level of the flow of water out, temperature and buffer tank shows in real time, and pressure is passed by control system
The detection data etc. of sensor carry out judgement can obtain system the most normally, and the duty of display system.
Based on said system, the Waste Heat Reuse method of the electromagnetic eddy current brake of the present invention specifically includes following step
Rapid:
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger and carries out heat exchange, makes the first heat hand over
Raw material seawater temperature in parallel operation raises, and after heat exchange, spent hot water participates in circulation again, stops for electromagnetic eddy
Car cools down；
The high temperature strong brine that sea water desalting equipment ejects carries out two with raw material seawater in the second heat exchanger
Secondary heat exchange；
Controller collecting temperature sensor, flow transducer and the data of level detection sensor, and according to
The water flow of the Data Control buffer tank gathered and water level, and the leaving water temperature of thermostatic valve；
Raw material seawater after temperature rises enters thermostatic valve, when the water temperature in thermostatic valve reaches design temperature,
Enter in sea water desalting equipment and carry out desalinization；
Discharge into sea after the high temperature strong brine heat exchange that sea water desalting equipment produces.
The present invention utilizes the spent hot water of electromagnetic eddy current brake to provide auxiliary thermal source for vacuum boiling type fresh water generator,
Improve efficiency and the yield making water.Spent hot water is directly utilized, it is to avoid energy by the way of heat exchange
The loss that conversion causes, accelerates the cooling of spent hot water, it is simple to it recycles simultaneously.
The present invention is applied not only to various offshore drilling platform, it may also be used for foreign-going ship, solves water supply
Problem and ocean thermal pollution.Having applied range, volume is little, the feature of low cost, it is believed that this dress
Put in input actual production and can be with a wide range of applications and good economic benefit.
It should be appreciated that for those of ordinary skills, can be changed according to the above description
Enter or convert, and all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (9)
1. the waste heat utilization system of an electromagnetic eddy current brake, it is characterised in that include electromagnetic eddy current brake and sea water desalting equipment, connect heat exchange thermostat between the two；
This heat exchange thermostat includes heat exchange module, thermostatic valve, buffer tank module, wherein: be provided with First Heat Exchanger and the second heat exchanger in described heat exchange module, and described thermostatic valve is built-in with temperature sensor；Buffering storage tank, flow transducer and level detection sensor it is provided with in described buffer tank module；This heat exchange thermostat also includes controller, and this controller is according to the temperature sensor gathered, flow transducer, the water flow of Data Control buffer tank of level detection sensor and water level, and the leaving water temperature of thermostatic valve；
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger and carries out heat exchange, makes the raw material seawater temperature in the first heat exchanger raise, and after heat exchange, spent hot water participates in circulation again, cools down for electromagnetic eddy current brake；Meanwhile, the high temperature strong brine that sea water desalting equipment ejects carries out second heat exchange in the second heat exchanger with raw material seawater, and the raw material seawater after temperature rises enters thermostatic valve, enters in sea water desalting equipment and carry out desalinization after reaching design temperature；Discharge into sea after the high temperature strong brine heat exchange that meanwhile sea water desalting equipment produces.
System the most according to claim 1, it is characterised in that this system also includes a plurality of pipeline and pretreatment water tank, is connected No. 1 pipeline between the first heat exchanger and electromagnetic eddy current brake；No. 2 pipelines it are connected between first heat exchanger and thermostatic valve；No. 6 pipelines are connected between pretreatment water tank and the first heat exchanger；
It is connected No. 3 pipelines between second heat exchanger and thermostatic valve, between the second heat exchanger and sea water desalting equipment, is connected No. 4 pipelines；It is also associated with water tank between electromagnetic eddy current brake and the first heat exchanger, is connected by No. 5 pipelines between water tank and the first heat exchanger；Second heat exchanger is connected by No. 7 pipelines and No. 6 pipelines；
Raw material seawater is drawn into pretreatment water tank, and raw material seawater is flowing into No. 6 pipelines and No. 7 pipelines through flow divider after pretreatment, respectively enters two heat exchangers；
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger through No. 1 pipeline and carries out heat exchange, the raw material seawater temperature in the first heat exchanger is made to raise, after heat exchange spent hot water flow into No. 5 pipelines continue to participate in be recycling in electromagnetic eddy current brake cooling, raw material seawater heat up after enter No. 2 pipelines；Meanwhile, the high temperature strong brine that sea water desalting equipment ejects flows into No. 4 pipelines, and carries out second heat exchange with the raw material seawater in No. 7 pipelines；Temperature rise after raw material seawater by No. 3 pipelines and No. 2 pipelines entrance thermostatic valves, under the control of the controller, thermostatic valve makes the homogeneous temperature of raw material seawater reach design temperature, and enters and carry out desalinization in sea water desalting equipment；Discharge into sea after the high temperature strong brine heat exchange that meanwhile sea water desalting equipment produces.
System the most according to claim 1, it is characterised in that the first heat exchanger and the second heat exchanger are heat-exchangers of the plate type.
System the most according to claim 1, it is characterised in that described thermostatic valve also includes spool and motor；
The temperature data of Real-time Collection is transferred to controller by described temperature sensor, controller generates control signal drive stepping motor regulation and control valve core opening degree after processing temperature data, when outlet temperature requires less than setting, motor drives valve core movement, reduce the aperture of cold water outlet, increase the aperture of hot water mouth, make the hot water ratio of mixed water increase, cold water ratio declines, and reaches setting value.
System the most according to claim 1, it is characterised in that described heat exchange thermostat also includes man-machine numeral method interface, is arranged on the casing of described heat exchange thermostat, and described man-machine numeral method interface is connected with controller by serial ports.
System the most according to claim 1, it is characterised in that described man-machine numeral method interface includes man-machine display main frame and the color screen being connected.
System the most according to claim 1, it is characterised in that described sea water desalting equipment is vacuum boiling type fresh water generator, and the water inlet water pipe of described vacuum boiling type fresh water generator external heat exchange thermostat, water outlet water pipe and high temperature brine outlet water pipe.
8. system as claimed in claim 4, it is characterised in that described motor is miniature 57 series motors.
9. the Waste Heat Reuse method of an electromagnetic eddy current brake, it is characterised in that the method, based on the system according to any one of claim 1-8, specifically includes following steps:
The spent hot water that electromagnetic eddy current brake produces enters the first heat exchanger and carries out heat exchange, makes the raw material seawater temperature in the first heat exchanger raise, and after heat exchange, spent hot water participates in circulation again, cools down for electromagnetic eddy current brake；
The high temperature strong brine that sea water desalting equipment ejects carries out second heat exchange with raw material seawater in the second heat exchanger；
Controller collecting temperature sensor, flow transducer and the data of level detection sensor, and according to the water flow of Data Control buffer tank gathered and water level, and the leaving water temperature of thermostatic valve；
Raw material seawater after temperature rises enters thermostatic valve, when the water temperature in thermostatic valve reaches design temperature, enters in sea water desalting equipment and carries out desalinization；
Discharge into sea after the high temperature strong brine heat exchange that sea water desalting equipment produces.
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| CN201610287088.9A CN105953625A (en) | 2016-05-03 | 2016-05-03 | Waste heat utilization system and method for electromagnetic eddy current brake |
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| CN201610287088.9A CN105953625A (en) | 2016-05-03 | 2016-05-03 | Waste heat utilization system and method for electromagnetic eddy current brake |
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Application publication date: 20160921 |