CN106195977A - A kind of electric heating converting system of flow cavitation result electric current - Google Patents
A kind of electric heating converting system of flow cavitation result electric current Download PDFInfo
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- CN106195977A CN106195977A CN201610687528.XA CN201610687528A CN106195977A CN 106195977 A CN106195977 A CN 106195977A CN 201610687528 A CN201610687528 A CN 201610687528A CN 106195977 A CN106195977 A CN 106195977A
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Abstract
The invention discloses the electric heating converting system of a kind of flow cavitation result electric current, including container, bottom is located in the import of container, top is located in its outlet, it is provided with at least electrode at the top of container, electrode penetrates the inside of container, the terminals of electrode are in external container, and be connected with alternating current power supply, fixed by insulator seal between electrode and container, the import of container is connected with water inlet pipe, water inlet pipe is provided with water pump, check valve it is provided with between water pump and vessel inlet, the outlet of container is connected with steam output pipe, steam output pipe is provided with regulation valve, horizontal plane in container exports less than it.The present invention utilizes the flow velocity of water to control container water level, changes resistance value with the change of water level, thus realizes the control to electric heating steam generator thermal power, therefore voltage adjusting device can be saved, avoid electromagnetic interference, moreover it is possible to realize continuously adjusting, improve temperature controlled precision.
Description
Technical field
The invention belongs to electric heating equipment field, the electric heating converting system of a kind of flow cavitation result electric current.
Background technology
In the occasion not having pipeline or boiler to provide steam, often electric heating steam generator is used to provide steam.Existing electricity
Hot steam generator typically uses electrothermal tube to heat, electrothermal tube by the resistance wire in pipe by current heating, through insulant and
Tube wall transfers thermal energy to water, makes water become steam.
When using electrothermal tube to heat, having a following weak point: 1) conduction of heat of electrothermal tube requires time for, thus electric
Hot steam generator needs certain preheating time, it is impossible to plug and play；2) electrothermal tube operating temperature is high, thus fragile, and
And electrothermal tube can not leave water, leave water and then damage at once；3) electrothermal tube resistance is immutable, so adjusting power must become with pressure regulation
Depressor or controllable silicon so that cost increases；4) and adjustable transformer is difficult to realization and automatically controls, controllable silicon produce electromagnetism do
Disturb；5) electrothermal tube operating temperature is high, so easy fouling and knot are stuck with paste during work.It is big that electrothermal tube steam generator has volume, heat waste
Losing big, power is difficult to adjust, and is difficult to realize automatic control, and pressure oscillation is big, and preheating time is long, it is impossible to the shortcomings such as plug and play.Electrothermal tube
Steam generator generally as a platform independent equipment for need use steam equipment provide steam.
Current electrothermal tube steam generator and all electric heating systems generally control power by control voltage, and then
Control temperature.When using electrical heating, square being directly proportional of electrical power and voltage, it is inversely proportional to resistance.That is: W=V/R.Control electricity
The method of pressure has the most several:
1, on-off control: cut off the electricity supply time i.e. higher than temperature upper limit, switch on power during less than lowest temperature.Which temperature fluctuation
Greatly, the occasion that required precision is the highest it is only used for；
2, pulse-width controlled: the i.e. on-off time ratio by controlling power supply controls average voltage.The method needs to use high-power height
Speed electronic device, not only cost is high, and produces electromagnetic interference；
3, the angle of flow controls: i.e. control voltage by the control silicon controlled angle of flow.Which not only produces electromagnetic interference, and
And reduction power factor；
4, transformator controls: i.e. change heating voltage by transformator, and which not only cost is high, and is difficult to realize automatically
Control.
Summary of the invention
The technical problem to be solved in the present invention is to provide the electric heating converting system of a kind of flow cavitation result electric current, utilizes water
Flow velocity controls the water level in container, changes resistance value with the change of water level, thus realizes the control to power, the most permissible
Save voltage adjusting device, it is to avoid electromagnetic interference, moreover it is possible to realize continuously adjusting, improve temperature controlled precision.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the electric heating of a kind of flow cavitation result electric current
Converting system, it is characterised in that: including a container sealed, bottom is located in the import of described container, and its outlet is located at
Portion, is provided with at least electrode at the top of container, and electrode penetrates the inside of container, and the terminals of electrode are in external container,
And be connected with alternating current power supply, to be fixed by insulator seal between electrode and container, the import of container is connected with water inlet pipe, enters
Water pipe is provided with water pump, is provided with check valve between water pump and vessel inlet, and the outlet of container is connected with steam output pipe, is steaming
Vapour outlet tube is provided with regulation valve, and the horizontal plane in container exports less than it.
Make said structure to supplement further, also include controller, described controller and the heat being located at container exit
Resistance connects, vapor (steam) temperature in collection container, and controller is also connected with water pump, controls the rotating speed of water pump.
Based on the embodiment above, when described electrode is one, its alternating current power supply is single-phase alternating current, and wherein electrode connects
The live wire end of single-phase alternating current, the zero line side of single-phase alternating current is connected with container.
Based on the embodiment above, when described electrode is two, its alternating current power supply is single-phase alternating current, wherein two electricity
Pole connects live wire end and the zero line side of single-phase alternating current respectively.
Based on the embodiment above, described electrode be three and above time, its alternating current power supply is three-phase alternating current, wherein
Each of three electrodes connects three live wire ends of three-phase alternating current respectively.
Making said structure to supplement further, described insulator is polytetrafluoro pad, and polytetrafluoro pad is made up of upper and lower plain cushion,
One of them plain cushion is with electrode sleeve pipe, it is ensured that electrode and the insulation of container, and polytetrafluoro pad is connected with container by hold-down bolt.
Making said structure to supplement further, described container is one section of stainless steel tube, stainless steel tube closed at both ends.
Make said structure to supplement further, between described electrode and alternating current power supply, be provided with A.C. contactor, described
A.C. contactor is by Control, and wherein relay coil electric current is less than human-body safety electric current, and using earth lead as line
One end of circle power supply, forms supply module.
Use and have the beneficial effects that produced by technique scheme:
(1) present invention is used for steam generator, utilizes the electric current in the container closed to heat, produces steam, and its control is former
Reason is: by the comparison of detection temperature with design temperature, controls the rotating speed of water pump, controls controlling water level with pump rotary speed, use water
Position controls electric current, with current-control power, it is achieved to electric heating steam generator temperature or the control of pressure, therefore can save tune
Pressure equipment, it is to avoid electromagnetic interference, moreover it is possible to realize continuously adjusting, improve temperature controlled precision；
(2) present invention uses controller to be controlled steam generation, and power is automatically adjusted with steam consumption, not only pressure stability,
And achieve steam with product, need not produce, be not required to steamdrum and store steam；
(3) present invention energising can directly heat, and volume is little, and water storage is few, does not has steamdrum, thus preheating time is relative to tradition
Equipment is greatly shortened, and is usually no more than 5 seconds, substantially can realize plug and play；
(4) present invention is compared with the steam generator with the electrothermal tube of power, and its volume is little, lightweight, can be as a portion
Part is arranged in the equipment using steam.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structured flowchart that electrode of the present invention connects alternating current；
In figure: 1, water pump, 2, check valve, 3, container, 4, electrode, 5, insulator, 6, regulation valve, 7, thermal resistance, 8, controller, 9,
Water inlet pipe, 10, steam output pipe.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
1 understand with reference to the accompanying drawings, present invention relates particularly to the electric heating converting system of a kind of flow cavitation result electric current, including one
The container 3 sealed, container 3 is one section of stainless steel tube.Stainless steel tube closed at both ends, wherein upper end is removed to electrode installation,
Container can bear required vapor (steam) temperature and pressure.Container 3 is provided with inlet and outlet, and wherein container 3 bottom is located in import, its outlet
Being located at top, import is for supplying water for container 3, and outlet is used for exporting steam.Require that the horizontal plane in container 3 goes out less than it
Mouthful.
It is to utilize electrical heating that steam produces, and is provided with at least electrode 4 at the top of container 3, and electrode 4 penetrates container 3
Inside, it is outside that the terminals of electrode 4 are in container 3, and is connected with alternating current power supply.Insulator is passed through between electrode 4 and container 3
5 sealings are fixing, to ensure insulation and the sealing of container 3.Insulator 5 is polytetrafluoro pad, and polytetrafluoro pad is made up of upper and lower plain cushion, its
In a plain cushion with electrode sleeve pipe, it is ensured that the insulation of electrode and container, be connected with container 3 by hold-down bolt.
The water supply part of container 3 is, the import of container 3 is connected with water inlet pipe 9, and water inlet pipe 9 is provided with water pump 1, at water pump 1
And it is provided with check valve 2 between container 3 import；The steam output part of container 3 is, the outlet of container 3 is with steam output pipe 10 even
Connect, steam output pipe 10 is provided with regulation valve 6.
In said structure, it specifically utilizes electrode 4 to connect alternating current to heat the water in container 3, produces and steams
Vapour, is exported by steam output pipe 10.The degree of depth that resistance in the present invention inserts in water with electrode 4 is inversely proportional to, so controlling water level
It is exactly to control resistance.Again because of electric current=voltage/resistance, so controlling resistance to control electric current exactly.And water level is by water injection manifold
Amount controls, so substantially using flow cavitation result electric current.When needs quantity of steam is bigger, feed pump 1 accelerates, in making container 3
Liquid level rise, improve water level, water and electrode 4 contact area increase, and add thermocurrent and flow through electrode 4 and water.Water level is the highest, electrode
The biggest with the contact area of water, add thermocurrent the biggest, electricity vapour conversion power is the biggest.
It addition, the present invention includes that controller 8, controller 8 are connected with the thermal resistance 7 being located at container 3 import department, collection container
Vapor (steam) temperature in 3, usable temp reduced pressure, or directly measure pressure.Controller 8 is also connected with water pump 1, controls water pump 1
Rotating speed.
In specific implementation process, robot control system(RCS) controls the rotating speed of water injecting pump according to temperature, and can convert according to table 1
Pressure.
Table 1 saturated-steam temperature pressure synopsis
The work process of this robot control system(RCS) is as follows:
1) when design temperature improves: robot control system(RCS) makes water pump accelerate, injection flow rises, and water level rises, and electric current increases, power
Increasing, temperature, pressure rise；
2) when temperature or pressure reach setting value, robot control system(RCS) makes water pump stop accelerating, and water level stops rising, and electric current stops increasing
Adding, temperature, pressure stop rising；
3) when design temperature reduces: robot control system(RCS) makes water pump slow down, injection flow declines, water level decreasing, and electric current increases and declines,
Power drop, temperature, pressure decline；
4) when steam output increases or voltage reduction makes temperature decline: robot control system(RCS) makes water pump accelerate, water level rises, and electric current increases
Adding, power increases, and temperature, pressure rise；
5) reduce when steam output or voltage raises when making temperature increase: robot control system(RCS) makes water pump slow down, water level decreasing, and electric current subtracts
Little, temperature, pressure decline.
According to principles above, robot control system(RCS) can not only make temperature tracking fixed valure, moreover it is possible to automatically compensates steam output pulsation
The temperature fluctuation caused with mains fluctuations.
In the present invention, the number of electrode 4 sets as required, and when electrode 4 is one, its alternating current power supply is single phase ac
Electricity, wherein electrode 4 connects the live wire end of single-phase alternating current, and the zero line side of single-phase alternating current is connected with container 1.When electrode 4 is two,
Its alternating current power supply is single-phase alternating current, and wherein two electrodes 4 connect live wire end and the zero line side of single-phase alternating current respectively.Electrode 4 is
Three and above time, its alternating current power supply is three-phase alternating current, and wherein each of three electrodes 4 connects three live wires of three-phase alternating current respectively
End.
Accompanying drawing 2 is the supply module of the present invention, is wherein provided with A.C. contactor between electrode 4 and alternating current power supply, exchange
Catalyst is by Control, and wherein relay coil electric current is less than human-body safety electric current, and using earth lead as coil electricity
The one end in source, forms supply module.When earth lead disconnects, electrode 4 automatically disengages power supply, to guarantee safety.
Above-mentioned A.C. contactor utilizes main contact to carry out opening and closing circuit, performs control instruction with auxiliary contact.Relay
It is the one " switch automatically " going to control larger current with less electric current, plays the effect of safeguard protection, coil in the present invention
Electric current is less than human-body safety electric current.
The present invention, by the comparison of detection temperature with design temperature, controls the rotating speed of water pump, controls with pump rotary speed
Water level, uses water lev el control electric current, with current-control power, and then controls temperature or pressure.Owing to the output of steam determines water
Consuming, the depletion rate of water keeps balancing with the rotating speed of water pump, and determines the height of water level, and therefore steam output is the most, water level
The highest, power is the biggest, otherwise steam output is the fewest, and water level is the lowest, and power is the least.Power can be adjusted automatically with steam consumption
Whole.Power is regulated by water level, the most safe and reliable, it is also possible to save controllable silicon, reduce cost, do not produce electromagnetic interference.
The present invention the most also has a safety assurance: 1) using ground wire as the one of supply module repeat circuit coil power
Pole, which kind of reason causes imperfect earth all can automatically power off.And supply relay coil current is less than human-body safety electricity
Stream, to ensure safety.2) using water as the only way which must be passed adding thermocurrent, no matter which kind of reason causes hydropenia or cuts off the water supply, and only can make
Electric current reduces or is zero, and dry combustion method phenomenon will not occur.
The present invention is compared with tradition electrothermal tube steam generator, and it has the advantage that
1, volume is little, lightweight, can be arranged in the equipment using steam as parts
As a example by the electric heating steam generator of 10 kilowatts: use the steam generator of electrothermal tube: be about 50 centimetres, wide about 60 lis
Rice, high about 120 centimetres, weigh about 300 kilograms.The present invention is similarly 10 kilowatts: diameter is less than 10 centimetres, high less than 30 centimetres, weight
Less than 2 kilograms.
2, plug and play, is not required to preheating
The steam generator using electrothermal tube needs to preheat more than two hours, can be only achieved the steam pressure of use.The present invention is pre-
The heat time, can be with plug and play less than 5 seconds.
3, power is automatically adjusted with steam consumption, pressure stability
The steam generator using electrothermal tube typically uses on-off control, stops heating when pressure is big, starts heating when pressure is low,
Pressure oscillation is big, needs steamdrum to store steam.The steam of the present invention, with product, need not produce, Power auto-adjustment, and pressure is steady
Fixed, it is not required to steamdrum and stores steam.
4, without controllable silicon, without pressure regulator, cost is reduced.
Claims (8)
1. one kind by the electric heating converting system of flow cavitation result electric current, it is characterised in that: include a container sealed (3), described
The import of container (3) be located at bottom, top is located in its outlet, is provided with at least electrode (4) at the top of container (3), electricity
Pole (4) penetrates the inside of container (3), and it is outside that the terminals of electrode (4) are in container (3), and is connected with alternating current power supply, at electrode
(4) and sealing between container (3) by insulator (5) and fix, the import of container (3) is connected with water inlet pipe (9), water inlet pipe (9)
Being provided with water pump (1), be provided with check valve (2) between water pump (1) and container (3) import, the outlet of container (3) exports with steam
Pipe (10) connects, and is provided with regulation valve (6) on steam output pipe (10), and the horizontal plane in container (3) exports less than it.
The electric heating converting system of a kind of flow cavitation result electric current the most according to claim 1, it is characterised in that: also include control
Device processed (8), described controller (8) is connected with the thermal resistance (7) being located at container (3) exit, collection container (3) interior steam temperature
Degree, controller (8) is also connected with water pump (1), controls the rotating speed of water pump (1).
The electric heating converting system of a kind of flow cavitation result electric current the most according to claim 1, it is characterised in that: described electricity
When pole (4) is one, its alternating current power supply is single-phase alternating current, and wherein electrode (4) connects the live wire end of single-phase alternating current, single phase ac
The zero line side of electricity is connected with container (1).
The electric heating converting system of a kind of flow cavitation result electric current the most according to claim 1, it is characterised in that: described electricity
When pole (4) is two, its alternating current power supply is single-phase alternating current, and wherein two electrodes (4) connect the live wire end of single-phase alternating current respectively
And zero line side.
The electric heating converting system of a kind of flow cavitation result electric current the most according to claim 1, it is characterised in that: described electricity
Pole (4) be three and above time, its alternating current power supply is three-phase alternating current, and wherein each of three electrodes (4) connects three-phase alternating current respectively
Three live wire ends.
The electric heating converting system of a kind of flow cavitation result electric current the most according to claim 1, it is characterised in that: described is exhausted
Edge body (5) is polytetrafluoro pad, and polytetrafluoro pad is made up of upper and lower plain cushion, and one of them plain cushion is with electrode sleeve pipe, it is ensured that electrode with
The insulation of container, polytetrafluoro pad is connected with container (3) by hold-down bolt.
7. according to the electric heating converting system of a kind of flow cavitation result electric current described in any one in claim 1-6, its feature
It is: described container (3) is one section of stainless steel tube, stainless steel tube closed at both ends.
8. according to the electric heating converting system of a kind of flow cavitation result electric current described in claim 3 or 4 or 5, it is characterised in that: institute
Be provided with A.C. contactor between electrode (4) and the alternating current power supply stated, described A.C. contactor by Control, wherein relay
Device coil current is less than human-body safety electric current, and using earth lead as one end of coil power, forms supply module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610687528.XA CN106195977A (en) | 2016-08-19 | 2016-08-19 | A kind of electric heating converting system of flow cavitation result electric current |
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| CN201610687528.XA CN106195977A (en) | 2016-08-19 | 2016-08-19 | A kind of electric heating converting system of flow cavitation result electric current |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314538A (en) * | 2017-08-04 | 2017-11-03 | 石家庄吉瑞节能技术有限公司 | A kind of electric heating system of air pressure control electric current |
| CN110280568A (en) * | 2019-07-03 | 2019-09-27 | 中国科学院力学研究所 | A kind of danger solid waste method of plasma processing and device |
| CN110319427A (en) * | 2019-06-24 | 2019-10-11 | 石家庄吉瑞节能技术有限公司 | The control method and pipeline type directly-heated type steam generation facility of steam production process |
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| CN110319427A (en) * | 2019-06-24 | 2019-10-11 | 石家庄吉瑞节能技术有限公司 | The control method and pipeline type directly-heated type steam generation facility of steam production process |
| CN110280568A (en) * | 2019-07-03 | 2019-09-27 | 中国科学院力学研究所 | A kind of danger solid waste method of plasma processing and device |
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