CN2457502Y - High frequency electromagnetic central water heater - Google Patents
High frequency electromagnetic central water heater Download PDFInfo
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- CN2457502Y CN2457502Y CN 00265378 CN00265378U CN2457502Y CN 2457502 Y CN2457502 Y CN 2457502Y CN 00265378 CN00265378 CN 00265378 CN 00265378 U CN00265378 U CN 00265378U CN 2457502 Y CN2457502 Y CN 2457502Y
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- frequency electromagnetic
- water tank
- water heater
- high frequency
- exciting coil
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Abstract
The utility model relates to a high frequency electromagnetic central water heater, which overcomes the shortcomings of the existing electric water heater. The high frequency electromagnetic central water heater is composed of a water tank, an excitation device, a control device, and a protective device. Owning to the adoption of a new high frequency electromagnetic wave inductive eddy current heating technology, the high frequency electromagnetic central water heater not only solves the difficult problem of water-electricity separation of the electric water heater, but also makes heat efficiency reach 85 percents. The heat efficiency of the high frequency electromagnetic central water heater is 29 percents higher than that of the electric water heater. The utility model is not only suitable for hot water supply in the kitchens and the toilets of a home networking, but also is suitable for the hot water requirement of restaurants, barbershops, small groups, etc.
Description
The utility model relates to the manufacturing of water heater.
The water heater of Xiao Shouing has three classes substantially in the market; Gas heater, solar water heater and electric heater.The advantage of gas heater is: volume is little, immersion heater, more convenient with using with burning.Shortcoming is: output is little, be subject to factor affecting such as gaseous-pressure, tap water pressure and gas meter, flow meter capacity, in shower, and may be because gaseous-pressure shakiness or gas meter off-capacity cause phenomenons such as water outlet is not hot, fire extinguishing midway; Owing to be transient heating, can not emit a large amount of hot water in the short time again, multichannel supplies water can't reach promising result.In addition, the straight-line water heater in use requires environment ventilation, and man-machine separation is in order to avoid cause gas poisoning; Forced-ventilated water heater is installed will airduct, and national regulation service life be 8 years, exceed the time limit to use and easily cause danger.The advantage of solar water heater is: compliance with environmental protection requirements, energy savings.Shortcoming is: be subjected to the influence in seasonal climate and place bigger, and installation and maintenance are difficult, so urban market difficulty open.Electric heater has been owing to overcome above-mentioned shortcoming, and again because advantage such as cheap, easy to use, and day also is subjected to people's favor.The electric heater of Xiao Shouing has two classes in the market: a class is an open-type; One class is the closed circulation heat preserving type.The advantage of open-type electric heater is: simple in structure, cheap, reservoir storage is big, need not be incubated, with using with burning: the advantage of closed circulation heat preserving type electric heater is: but health, insulation, the 24 hours heat supply water in pressure cycle water multitube road, and be provided with kinds of protect device (as overheated, overvoltage, electric leakage etc.).Shortcoming is: all kinds of various electric heaters in design, although constantly weed out the old and bring forth the new, you are with the insulation of magnesia microcrystal; He isolates water power with heat-resistant ceramic tube.But all do not solve the difficult problem of electricity separation, and only be at reinforced insulation, write an article on the enhanced protection, final result still is that heat-generating pipe is immersed in the water tank, and the water power one can not reliably guarantee personal safety.Therefore, in case heat-generating pipe corrosion leakage or ceramic body crack breakage, then the user still has the danger of electric shock.Also have some producers (as Haier's electric heater) in order to ensure personal safety, have to take the just mode of outage of water outlet.We can say that the electric heater of Xiao Shouing does not in the market all have really to solve the difficult problem of electricity separation.
The purpose of this utility model is a kind of novel high-frequency electromagnetism central authorities hot water apparatus, can overcome the above-mentioned shortcoming of electric heater, really reaches electricity separation, provides to market that a kind of security performance is good, the thermal efficiency is high, the water heater of economy and durability.
The utility model comprises that shell, heat-insulation layer, water tank, water inlet pipe, unidirectional pressure relief safety valve, outlet pipe, threeway, heat control valve, shower nozzle, snakeskin hose, anodic magnesium rod, magnet exciting coil, magnetic conduction bar, thermistor, power supply indicator, electrical control printed circuit board (PCB), power switch, temperature controller, relay indicating light, bulb,, thermantidote, ventilating opening, power line, latch and earthing pole constitute.
The utility model may be summarized to be cistern device (shell, heat-insulation layer, stainless steel water tank, water inlet pipe, unidirectional pressure relief safety valve, outlet pipe, threeway, heat control valve, shower nozzle, snakeskin hose, anodic magnesium rod); Excitation unit (rectifier, choke coil, filter capacitor, high frequency excitation, resonant capacitance, high-power switch tube, Zener diode); Control device (relatively shaping circuit, control level form circuit, pulse width control circuit, exciting circuit, bulb,, temperature controller, power switch, power supply indicator, relay indicating light, circuit board); Protective device (start transient protection, time-delay trigger protection, overtemperature protection, overvoltage protection, low-voltage protection, overcurrent protection, thermantidote).
The utility model is described with reference to the accompanying drawings as follows:
Fig. 1 is the overall structure schematic diagram of high-frequency electromagnetic central authorities hot water apparatus.
Fig. 2 is the electric control theory figure of high-frequency electromagnetic central authorities hot water apparatus.
As shown in the figure, the 1st, shell, the 2nd, heat-insulation layer, the 3rd, water tank, the 4th, water inlet pipe, the 5th, unidirectional pressure relief safety valve, the 6th, outlet pipe, the 7th, threeway, the 8th, heat control valve, the 9th, shower nozzle, the 10th, flexible metal conduit, the 11st, anodic magnesium rod, the 12nd, inspection cover, the 13rd, asbestos layer, the 14th, magnet exciting coil, the 15th, magnetic conduction bar, the 16th, thermistor, the 17th, power supply indicator, the 18th, electrical control printed circuit board (PCB), the 19th, power switch, the 20th, temperature controller, the 21st, relay indicating light, the 22nd, bulb,, the 23rd, thermantidote, the 24th, ventilating opening, the 25th, power line, the 26th, latch, the 27th, earthing pole.
Operation principle of the present utility model: after electric heater installs, open the valve of water inlet pipe and outlet pipe, running water injects water tank through heat control valve cold water inlet, unidirectional pressure relief safety valve, water inlet pipe.When water after outlet pipe, threeway, heat control valve, flexible metal conduit, shower nozzle flow out, close the outlet pipe valve.The line that plugs in is transferred to 80 degree Celsius, power turn-on K switch 1 with temperature controller.At this moment relay indicating light is bright, after the filter network filtering that 220V AC power frequency civil power constitutes through bridge full wave rectifier D27 with by choke coil RFC and capacitor C 31, alternating current is become direct current, deliver to again on the inverter circuit of forming by magnet exciting coil L1, resonant capacitance C30, high-power switch tube VT, zener diode D25,26.High-power switch tube VT does conducting, ends work under the rectangular pulse F control that control circuit sends.When high-power switch tube VT conducting, DC circuit is to magnet exciting coil L1 charging, and electric current rises and reaches maximum.When high-power switch tube VT ended: magnet exciting coil L1 and resonant capacitance C1 series resonance, the G point produced the high pressure positive pulse.When this pulse reduced to zero, the control circuit rectangular pulse was added on the high-power switch tube VT once more, makes it conducting.
Because the conducting of high-power switch tube, the speed of ending are very fast, thus very high by the voltage and current frequency in the magnet exciting coil, about 20-35 kilohertz.According to electromagnetic induction principle, around the magnet exciting coil of energising, will produce high-frequency alternating magnetic field.The magnetic line of force passes stainless steel water tank will produce eddy current, make the water tank heating, reach the purpose of heating the inside water.
Entire circuit of the present utility model is made up of excitation unit, control device, protective device three parts.Wherein excitation unit is made up of rectification circuit, filter circuit, resonance circuit, phase inverter.Control circuit forms circuit, pulse width control circuit, exciting circuit, temperature controller by relatively shaping circuit, control level and forms.Protective device is made up of start transient protection, time-delay trigger protection, overtemperature protection, overvoltage protection, low-voltage protection, current foldback circuit.
1, excitation unit operation principle: after civil power was connected, frequency was after the alternating current of 50 He Zhi reaches the filter network filtering that is made of choke coil RFC and electrochemical capacitor C31 through the D27 full-wave rectification, to become direct current.This direct current is added on the high-power switch tube VT by magnet exciting coil L1.High-power switch tube VT will play the electric current on-off action according to the pulsewidth size of the pumping signal F that sends in the control circuit in main circuit.It is controlling the time of size of current and break-make in the magnet exciting coil.When high-power switch tube VT conducting, electric current passes through; When switching tube by the time, serial resonant takes place in L1, C30, in the circuit and produce high-voltage pulse, L1 charges to C30.When this pulse reduced to zero, control impuls F made it conducting in the inferior base stage that is added to high-power switch tube VT.Because the frequency that the high-power switch tube conducting ends is quite fast, so the power frequency that flows through among the magnet exciting coil L1 is very high, about 20-35 kilohertz sesame.According to electromagnetic induction principle, will produce high-frequency alternating magnetic field around the magnet exciting coil this moment.This high-frequency alternating magnetic field will produce eddy current on stainless steel water tank, water tank is heated and thermal energy transfer is fed water.
2, control device operation principle: as shown in Figure 2, control circuit by shaping circuit (JC2c, JC3a) control level relatively form circuit JC3b, pulse width modulation circuit JC2d, drive(r) stage (BG7-BG11), temperature controller WK1 forms.The signal G feedback that resonance circuit produces, after R33, R34 dividing potential drop become the 6th pin that signal A is input to comparison shaping circuit JC2c, formerly with rectification circuit deliver to comparison shaping circuit JC2c the 7th pin signal B relatively after, obtain square-wave pulse C through shaping.After passing through the JC3a shaping again, by 2 pin output signals.This signal forms sawtooth signal D through C13, R43 differential circuit.Sawtooth signal is input to positive input the 11st pin of pulse width modulation circuit JC2d, and is imported reverse input end the 10th pin of JC2d by the signal of control level circuit output.The result is to be the adjustable signal E of pulsewidth by JC2d output.The drive(r) stage that constitutes via BG7-BG11 carries out shaping and power amplification again, forms the adjustable pumping signal F of pulsewidth, outputs to the base stage of high-power switch tube VT, drives high-power switch tube and does the quick break-make of high frequency.Thereby control watt level.
Temperature control: when water temperature in the water tank reaches Celsius 80 when spending, insert liquid ether in the bulb, in the water tank and splash and rise, drive temperature controller WK1 action, cut off the electricity supply, high-frequency electromagnetic pines for entreating hydrophone to quit work.The liquid ether shrinks in Celsius 60 bulb,s when spending when water temperature in the water tank drops to, and drives temperature controller WK1 action, connects power supply, the work of high-frequency electromagnetic central heater.
3, protective device operation principle: as shown in Figure 2, the electromagnet water heater holding circuit has: start transient protection, time-delay trigger protection, overtemperature protection, overvoltage protection, low-voltage protection, overcurrent protection and power control.In the start moment of electromagnet water heater, the line voltage sudden change as not taking safeguard measure, is easy to high-power switch tube is burnt.The transient protection circuit will address this problem.When the sudden change variable appears in supply voltage Vb+, this variable will be input to transient protection device JC1a by capacitor C 1, make diode D2 conducting through JC1a paraphase output, block high-frequency generator, thus protection high power switch triode.BG1, JC1b are made for the usefulness of time-delay triggering.
Out of control in order to prevent high-frequency electromagnetic central heater heating-up temperature, the utility model is equipped with temperature detection element thermistor R14 on high-frequency electromagnetic central heater water tank.When high-frequency electromagnetic central heater water temperature rose, the resistance of R14 reduced, and the current potential of the reverse input end of JC2a raises.When spending above design temperature Celsius 90, JC2a, the upset of JC2b duty make signal E be in zero potential, and circuit is quit work.
When line voltage is not enough, very easily damage device in the machine.Local circuit is provided with under-voltage protecting circuit.The secondary 18V alternating current of power transformer forms pulsating volage after the D28 rectification.Amplify the normal phase input end of receiving JC2b through BG3, BG2.Supply voltage is low more, and the BG2 collector voltage is low more.When being lower than JC2b end of oppisite phase current potential, output skips to zero level by open-circuit condition, and making E is zero.
Overvoltage crowbar is made up of BG4, D6.When voltage just often, BG4 ends.When overvoltage, D6 punctures, and M current potential amplitude increases, and after the BG4 paraphase, and the control level of going to release forms the electric charge at capacitor C 23 two ends of level input, and the I current potential is reduced.
During the switching tube overcurrent, damper tube D25, D26 forward voltage drop will increase.BG6 colelctor electrode output pulse width also will increase, and after C14 filtering, the J level be raise.Therefore, the circuit of being made up of BG6 has overcurrent protection.
Power adjusting: as can be seen from Figure 2, H is that putting of high-frequency electromagnetic central heater power level is fixed.Negative-feedback signal through current transformer S1, commutation diode D27 filter capacitor C27 is sampling current potential L.The L current potential embodies the size of output heating power.H, L come together in control level jointly and form the dc amplifier JC2b of circuit and export J at 13 ends.J is the sampled level of complete machine total current, and it and whole high-frequency generator are formed power conditioning circuitry (or claiming permanent power circuit).Promptly take from the positive feedback signal G of switching tube, form sawtooth signal D, be added to the in-phase input end of comparator JC2d through dividing potential drop, shaping, differential circuit; And take from the control signal J that regulates sample circuit, be added to the backward end of comparator JC2d.Suppose that the power adjusting level reduces gradually, the level of J raises gradually, and then the pulsewidth of E and F reduces gradually.The virtual value of G also reduces thereupon.Vice versa.
Technical indicator of the present utility model:
Power supply: 220V50HZ
Power: 800W, 1500W
Tank pressure: 0.6MPa
The thermal efficiency: 85%
Mode of heating: frequency electromagnetic waves, (water tank is outer contactless)
Temperature control scope: 30-90 degree Celsius
Function: sealing insulation, recirculated water, 24 hours multitube road central heating water
Security performance: electricity separation
Protection is provided with: anti-dry, anti-overheated, superpressure preventing, anti-backwater, antistatic and induced electricity.
Automaticity: automatic water-storage, automatic shutoff, releasing pressure automatically, heating and temperature automatically controlled automatically.
Advantage of the present utility model:
1, electricity separation, safety electric shock-prevention. The utility model is installed in water tank owing to abandoned the electric heater heater element Interior conventional practice adopts brand-new magnetic field induction eddy-current heating technique, 5-10 millimeter place outside stainless steel water tank, peace Dress high frequency magnet exciting coil. The high-intensity magnetic field that the high frequency magnet exciting coil produces after the energising forms the iron branch at chalybeate stainless steel water tank Son is shake altogether, and high-speed motion generates ten hundreds of eddy current, and converts efficient heat energy to, directly water in the heating water tank. Therefore, The utility model has thoroughly solved this difficult problem that electric heater can not be realized electricity separation, makes alternating current 220V civil power and water Case has guaranteed user's Electrical Safety from truly having realized electricity separation.
2, the high energy saving of the thermal efficiency. The utility model is owing to having adopted high frequency magnetic field inductive loop heating means, therefore The thermal efficiency is up to 85%. Only be 56% and generally adopt resistance heating method, the thermal efficiency. And employing combustion heating method, The thermal efficiency is lower, only is 50%. Therefore, on energy savings the utility model than common electrical water heater energy savings 29 %; Than natural gas combustion energy saving 35%. Take Tianjin current electricity price 1 degree electricity as 0.38 yuan, 1 cube of natural gas present price Rice is 1.6 yuan of calculating, uses the utility model, in the 1 degree electricity 0.32 yuan electric energy energy transform into heat energy will be arranged, and loss only is 0.057 unit; And use electric furnace, and in the 1 degree electricity 0.213 yuan electric energy energy transform into heat energy is only arranged, transform loss up to 0.167 yuan. And it is bigger to carry out hot conversion loss with the mode of gas-fired. The thermal efficiency of burning is 50%, and you only can obtain in conversion 0.8 the heat energy of unit, and second half has just wasted in conversion process.
3, the utility model has magnetization to water, and human body is had magnetic therapeutic health function. The utility model is in when work, high frequency Electromagnetic field not only produces eddy-current heating at stainless steel water tank, and the water in the water tank is also had magnetization. Through magnetization Water, be the paramagnetic phenomenon, make hydrogen, oxygen atom even structure arrange water oxygen level, osmotic pressure, electrical conductivity, salt Solubility etc. all change, and long-term use has the effect of fitness and disease prevention. To regulating vegetative nerve function, body is discharged in dissolving Interior various calculus, all effective in cure to hypertension, coronary heart disease, obesity etc.
4, the utility model belongs to environment-friendly products, and is harmless; The audiovisual household electrical appliances there is not any interference.The utility model does not produce any naked light and waste gas when work, harmless.Because the design of its operating frequency does not have the width of cloth to human body and penetrates heat 20-35 kilohertz sesame, security performance is better.Penetrate leakage in order to prevent the outside width of cloth of high-frequency signal, cause contiguous household electrical appliance are disturbed, the utility model has at first carried out the shielding design to high-frequency circuit, secondly for prevent high-frequency signal along power line to external leakage, added high frequency choke coil and filter capacitor at power unit, and made main circuit operating current frequency approach sine waveform basically in design.Prevented HF leakage effectively.In antistatic, the injury of induced electricity to human body, the utility model has been done good ground connection design, to guarantee personal safety.
Claims (5)
1, the central hot water apparatus of a kind of high-frequency electromagnetic is characterized in that it is by shell (1), heat-insulation layer (2), water tank (3), water inlet pipe (4), unidirectional pressure relief safety valve (5), outlet pipe (6), threeway (7), heat control valve (8), shower nozzle (9), flexible metal conduit (10), anodic magnesium rod (11), inspection cover (12), asbestos pad (13), magnet exciting coil (14), magnetic conduction bar (15), thermistor (16), power supply indicator (17), electrical control printed circuit board (PCB) (18), power switch (19), temperature controller (20), relay indicating light (21), bulb, (22), thermantidote (23), ventilating opening (24), power line (25), latch (26), earthing pole (27); Water inlet pipe (4), outlet pipe (6), anodic magnesium rod (11), bulb, pipe (22) are fixed in the stainless steel water tank; In inspection cover (12) sealing of opening an inspection opening near anodic magnesium rod (11) one sides and constituting with collision mat and steel plate; Then water tank (3) is contained in the shell (1); Except that around bulb, (22) one sides, reserving at interval and filling heat insulating wall (2); There not being heat-insulation layer one side center that thermistor (16) is installed, heat insulation asbestos board (13) is installed then; Near the asbestos board central lower magnet exciting coil (14), magnetic conduction bar (15) are being installed; Electrical control printed circuit board (PCB) (18) is installed thereafter; Opening air port (23) near on the laterally zygomorphic shell of printed panel, and thermantidote (24) is being installed below the top portion ventilation mouth; Power supply indicator (17), relay indicating light (21), temperature controller (20), power switch (19) are installed on shell; (25) one of latch (26) and power lines are connected, other end live wire, zero line are connected with No. 2 binding posts of rectifier D27 with of power switch (19) respectively, earth connection is connected with earthing pole (27).
2, the central hot water apparatus of high-frequency electromagnetic according to claim 1 is characterized in that described water inlet pipe (4) inserts about 2 centimetres of water tank; About 3 centimetres in outlet pipe (6) insertion water tank apart from the top.
3, high-frequency electromagnetic according to claim 1 central authorities hot water apparatus is characterized in that between described (3) water tank and the dish-like high frequency magnet exciting coil (14) that the interval is no more than 10 millimeters, therebetween and heat insulation asbestos protective layer arranged.
4, the central hot water apparatus of high-frequency electromagnetic according to claim 1 is characterized in that below the described dish-like magnet exciting coil (14), and 6 high frequency magnetic conduction bars are housed.
5, the central hot water apparatus of high-frequency electromagnetic according to claim 1 is characterized in that near magnet exciting coil (14) one sides symmetrical ventilation fence hole being arranged up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265378 CN2457502Y (en) | 2000-12-13 | 2000-12-13 | High frequency electromagnetic central water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265378 CN2457502Y (en) | 2000-12-13 | 2000-12-13 | High frequency electromagnetic central water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2457502Y true CN2457502Y (en) | 2001-10-31 |
Family
ID=33619761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00265378 Expired - Fee Related CN2457502Y (en) | 2000-12-13 | 2000-12-13 | High frequency electromagnetic central water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2457502Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371479A (en) * | 2014-08-13 | 2016-03-02 | 顺德职业技术学院 | Liquid level device of liquid heater |
| CN109984614A (en) * | 2017-12-29 | 2019-07-09 | 平潭综合实验区富尔康健康科技有限公司 | A kind of detachable ultrasound wave descaling brews heating device |
| CN110470047A (en) * | 2019-09-10 | 2019-11-19 | 丰自越 | A kind of multitube pressure stabilizing electric heater |
-
2000
- 2000-12-13 CN CN 00265378 patent/CN2457502Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371479A (en) * | 2014-08-13 | 2016-03-02 | 顺德职业技术学院 | Liquid level device of liquid heater |
| CN105371479B (en) * | 2014-08-13 | 2018-04-20 | 顺德职业技术学院 | A kind of level gauge of liquid heater |
| CN109984614A (en) * | 2017-12-29 | 2019-07-09 | 平潭综合实验区富尔康健康科技有限公司 | A kind of detachable ultrasound wave descaling brews heating device |
| CN109984614B (en) * | 2017-12-29 | 2024-04-12 | 福州品行科技发展有限公司 | Detachable ultrasonic descaling brewing heating device |
| CN110470047A (en) * | 2019-09-10 | 2019-11-19 | 丰自越 | A kind of multitube pressure stabilizing electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |