CN2736687Y - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN2736687Y CN2736687Y CN 200520003605 CN200520003605U CN2736687Y CN 2736687 Y CN2736687 Y CN 2736687Y CN 200520003605 CN200520003605 CN 200520003605 CN 200520003605 U CN200520003605 U CN 200520003605U CN 2736687 Y CN2736687 Y CN 2736687Y
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- water
- inner bag
- control valve
- pressurize
- electric control
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model relates to an electric water heater which has the advantages of reasonable structure, easy use, safety, long service life and central water supply. The utility model comprises an inner bag, an electrothermal element, a thermostat, a controller, a water inlet pipe and a water outlet pipe, wherein the outer end of the water inlet pipe which is communicated with the inner bag is connected with a running water pipe, and the outer end of the water outlet pipe which is communicated with the inner bag is connected with a water-mixing valve. The utility model is characterized in that a normally closed water inlet electric control valve is arranged on a channel of the water inlet pipe, a normally opened pressure keeping electric control valve is arranged between a pressure keeping chamber and the inner bag, the pressure keeping chamber is provided with a pressure sensor and a safety valve and is communicated with an air pump, and a channel of the water outlet pipe is provided with a water flow sensor.
Description
Technical field
The utility model relates to a kind of electric heater, the electric heater that use in particularly a kind of family or hotel.
Background technology
The electric heater that existing family or hotel guest-room are used is divided into two kinds of closed and outlet open-types; Wherein closed electrical water heater comprises inner bag, temperature control element, safety valve, heating, the water inlet pipe that communicates with inner bag and outlet pipe, inner bag is an obturator that only communicates with inlet tube and outlet tube, water inlet pipe communicates for a long time with running water pipe, the hot water inlet port of outlet pipe and mixed water valve joins, the cold water inlet port and the running water pipe that wherein mix water valve join, and outlet pipe can join to realize that central authorities supply water with a plurality of mixed water valves; Open mixed water valve during use, the mixed water valve through correspondence under the hydraulic pressure effect of the hot water in the inner bag in running water pipe is discharged; The advantage of this closed electrical water heater is to realize that remote central authorities supply water, but shortcoming is short a, poor stability of life-span, reason is that inner bag bears high hydraulic pressure for a long time, metal inner tube and heating under the HTHP effect very easily by corrosion, thereby shortened its life-span, in case will blast, cause danger and safety valve is malfunctioning.And the outlet open-type electric heater is by water storage tank, heater, temperature controller and advancing, outlet pipe constitutes, communicate with the water storage tank other end and running water pipe of water inlet pipe one end joins, the outlet pipe one end special-purpose water valve that mixes of another termination that communicates with water tank, wherein special-purpose cold water inlet port and the running water pipe that mixes water valve joins, this special use mixes water valve and can only close from the passage of running water pipe direction, and can not close the passage that joins with outlet pipe, guarantee that inner bag communicates with atmosphere for a long time, when using, open the valve on the water inlet pipe, running water is in water inlet pipe enters water storage tank, water in the water storage tank flows out through outlet pipe by the hydraulic pressure of running water, valve closing when not using on the water inlet pipe, but outlet pipe still is what communicate with atmosphere, has at this moment closed outlet pipe because of the valve on the water inlet pipe passage and has communicated with atmosphere again, even the temperature controller in the water storage tank is out of control, heater is switched on for a long time, can not blast yet, so, compare with closed electrical water heater, the outlet open-type electric heater comparatively safety and life-span long; But shortcoming is to be difficult to realize that remote central authorities supply water, for example, and when electric heater is installed in the toilet, the kitchen is if use hot water, just must go to the toilet and will be installed in valve open on the intake tunnel, the toilet of also need running back after using up uses valve closing very inconvenient; In on February 12nd, 1992 disclosed Chinese patent bulletin CN2096026U, a kind of " water-storage electric heater of built-in control valve " disclosed, background technology in this patent application has been done comparatively detailed explanation to existing outlet open-type electric heater, is not going to repeat.
Summary of the invention
The purpose of this utility model be that exist in the existing electric heater or easy to use in order to solve, can realize that central authorities supply water, but the life-span is short, poor stability; Life-span is long, safe, but is to use inconvenience, can not realizes the problem that central authorities supply water, and provide a kind of rational in infrastructure, easy to use, safe, the life-span long and can realize the electric heater that central authorities supply water.
Technical scheme:
The technical scheme that realizes the utility model purpose is: a kind of electric heater, comprise inner bag, heating, temperature controller, controller, water inlet pipe and outlet pipe, the water inlet pipe outer end and the running water pipe that wherein communicate with inner bag join, the outlet pipe outer end and the mixed water valve that communicate with inner bag join, and it is characterized in that the passage of water inlet pipe is provided with normally closed water inlet electric control valve; Be provided with between pressurize chamber and inner bag and often open the pressurize electric control valve, the pressurize chamber is provided with pressure sensor and safety valve, and the pressurize chamber communicates with compression pump; On the outlet pipe passage, be provided with water flow sensing unit.
Described electric heater is characterized in that the shared valve body of described water inlet electric control valve and pressurize electric control valve, spool and automatically controlled driving mechanism.
Described electric heater is characterized in that the indoor peak of described pressurize is higher than the peak of inner bag.At ordinary times, electric heater is in packing state, inner bag communicates, does not communicate with running water pipe with the pressurize chamber, when pressure in the inner bag drops to the pressurize lower limit set value of pressure sensor when (as less than 0.03MPa) because of water temperature, controller control compression pump is to the indoor air feed of pressurize, the interior pressure that guarantees inner bag this moment is not less than setting value (as 0.03MPa), when the interior pressure up to inner bag and pressurize chamber was increased to the upper limit set value (as being set in 0.05MPa) of pressure sensor, the power supply that controller cuts off compression pump stopped to inner bag and pressurize chamber air feed compression pump; The effect of safety valve is that the interior pressure of inner bag and pressurize chamber is too high when preventing packing state, when pressure in the inner bag is higher than the setting value (as 0.06MPa) of safety valve, safety valve is opened pressure release, and wherein the setting value of safety valve (is 0.06Mpa＞0.05MPa) greater than the upper limit set value of pressure sensor herein; During use, open mixed water valve, remain on low-pressure state (should be 0.03Mpa-0.06MPa herein) because of pressing in the inner bag, be not higher than 3 meters (0.03Mpa is corresponding with pressure) as long as mix the delivery port of water valve, the water of inner bag can flow out through mixing water valve, after controller has water to flow in water flow sensing unit detects outlet pipe (the proof user uses electric heater), close the pressurize electric control valve, open into water electrically-controlled valve, at this moment, electric heater enters duty, and its principle is equivalent to closed electrical water heater; When close mix water valve after, controller does not have current in water flow sensing unit detects outlet pipe, immediately or close into the water electrically-controlled valve after time-delay (can be fixed by factory's family livehood) a period of time, open the pressurize electrically-controlled valve, electric heater reenters packing state.The water inlet electric control valve is designed to normally closed, the benefit that the pressurize electric control valve is designed to often open is, when electrical control mechanism is malfunctioning, guarantee that electric heater is in the pressurize duty, and described water inlet electric control valve and pressurize electric control valve can cause interlock, be a shared magnetic or electric device, intaking when magnetic is switched on, electric control valve is opened, the pressurize electric control valve is closed.What outwards release when making the safety valve pressure release is gas rather than water, in order to avoid waste water resource, so the peak that pressurize is indoor is designed to be higher than the peak of inner bag.
Realize that another technical scheme of the present utility model is: a kind of electric heater, comprise inner bag, heating, temperature controller, controller, water inlet pipe and outlet pipe, it is characterized in that the passage of water inlet pipe is provided with normally closed water inlet electric control valve; Be provided with between pressurize chamber and inner bag and often open the pressurize electric control valve, the pressurize chamber is provided with pressure sensor, and the pressurize chamber communicates with compression pump; Be provided with normally closed pressure release electric control valve between inner bag and drainpipe; On the outlet pipe passage, be provided with water flow sensing unit.
Described electric heater is characterized in that the shared valve body of described water inlet electric control valve, pressurize electric control valve and pressure release electric control valve, spool and automatically controlled driving mechanism.
Described electric heater is characterized in that the indoor peak of described pressurize is higher than the peak of inner bag.At ordinary times, electric heater is in packing state, inner bag communicates, does not communicate with running water pipe with the pressurize chamber, when pressure in the inner bag drops to the pressurize lower limit set value of pressure sensor when (as less than 0.03MPa) because of water temperature, controller control compression pump is to the indoor air feed of pressurize, the interior pressure that guarantees inner bag this moment is not less than setting value (as 0.03MPa), when the interior pressure up to inner bag and pressurize chamber was increased to the upper limit set value (as being set in 0.05MPa) of pressure sensor, the power supply that controller cuts off compression pump stopped to inner bag and pressurize chamber air feed compression pump; During packing state, if the interior pressure of inner bag and pressurize chamber is higher than the secure setting (as 0.06MPa) of pressure sensor, controller opens pressure release electric control valve makes the water in the inner bag discharge with pressure release through drainpipe, forces down in inner bag in 0.06Mpa and only just closes the pressure release electric control valve; During use, open mixed water valve, remain on low-pressure state (should be 0.03Mpa-0.06MPa herein) because of pressing in the inner bag, be not higher than 3 meters (0.03Mpa is corresponding with pressure) as long as mix the delivery port of water valve, the water of inner bag can flow out through mixing water valve, after controller has water to flow in water flow sensing unit detects outlet pipe (the proof user uses electric heater), close the pressurize electric control valve, open into water electrically-controlled valve, at this moment, electric heater enters duty, and its principle is equivalent to closed electrical water heater; When close mix water valve after, controller does not have current in water flow sensing unit detects outlet pipe, immediately or close into the water electrically-controlled valve after time-delay (can be fixed by factory's family livehood) a period of time, open the pressurize electrically-controlled valve, electric heater reenters packing state.The water inlet electric control valve is designed to normally closed, the benefit that the pressurize electric control valve is designed to often open is, when electrical control mechanism is malfunctioning, guarantee that electric heater is in the pressurize duty, and described water inlet electric control valve and pressurize electric control valve can cause interlock, be a shared magnetic or electric device, intaking when magnetic is switched on, electric control valve is opened, the pressurize electric control valve is closed.
Beneficial effect:
Owing to adopted technical scheme described in the utility model, electric heater is in closed state when the user uses, so, can realize that central authorities supply water, easy to use; And do not use (during standby) to press less packing state in being in, and the interior pressure minimum (specifically can be set by manufacturer) that inner bag is suffered has prolonged life-span of inner bag, and security is improved, and it is simple and reasonable for structure.Integrate closed and advantage open type electric water heater, and overcome closed and shortcoming open type electric water heater.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the internal structure schematic diagram of the embodiment one of electric heater described in the utility model.
Fig. 2 is the internal structure schematic diagram of the embodiment two of electric heater described in the utility model.
Fig. 3 is the internal structure schematic diagram when electric control valve is in the normal state among Fig. 1 embodiment.
Fig. 4 is the internal structure schematic diagram of the described electric control valve of Fig. 3 when being in open mode.
Fig. 5 is the internal structure schematic diagram when electric control valve is in the normal state among Fig. 2 embodiment.
Fig. 6 is the internal structure schematic diagram of the described electric control valve of Fig. 5 when being in open mode.
Fig. 7 is the internal structure schematic diagram of the described electric control valve of Fig. 5 when being in hull-borne.
Among the figure 1, compression pump, 101, tracheae, 2, safety valve, 3, pressure sensor, 21, shell, 23, inner bag, 24, water inlet pipe, 26, the pressurize chamber, 25, outlet pipe, 251, level sensor, 27, electric control valve, 271, tube connector, 272, arm, 270, drainpipe, 28, heating, 29, water flow sensing unit, 8, temperature controller, 37,47, valve body, 38,48, spool, 371,372,373, connector, 471,472,473,474, connector.
The specific embodiment:
Embodiment one, Fig. 1 is the internal structure schematic diagram of the embodiment of electric heater described in the utility model first technical scheme, in conjunction with Fig. 1 and Fig. 2 as seen, described electric heater comprises inner bag 23, heating 28, temperature controller 8, controller (not drawing among the figure), water inlet pipe 24 and outlet pipe 25; Pressurize chamber 26 is positioned at inner bag 23 tops; Water inlet electric control valve and the shared valve body 37 of pressurize electric control valve, spool 38 and automatically controlled driving mechanism (not drawing among the figure); Figure 3 shows that the cut-away view when valve body 37 and spool 38 are in the normal state, as can be seen from Fig. 3, tube connector 271 1 ends communicate with inner bag, the other end and electric control valve 27 join, the normally closed water inlet electric control valve that water inlet pipe 24 and tube connector are 271 is in closed condition, and 27 of pressurize chamber 26 and electric control valves are connected with arm 272, the pressurize electric control valve of often opening of 271 settings of arm 272 and tube connector is in open mode (inner bag 23 is through tube connector 271, connector 372,373, arm 272 communicates with pressurize chamber 26), pressurize chamber 26 is provided with pressure sensor 3 and safety valve 2, is communicated with tracheae 101 between pressurize chamber 26 and the compression pump 1; On outlet pipe 25, be provided with water flow sensing unit 29; Fig. 4 is the internal structure schematic diagram of electric control valve 27 when being in open mode, as can be seen from Fig. 4, spool 38 will be communicated with connector 373 sealings of arm 272, open with the connector 371 and 372 of water inlet pipe 24 and be communicated with tube connector 271, electric heater is in running order, running water flows in the inner bag 23 through water inlet pipe 24 connectors 371,372, tube connector 271, and the hot water in the inner bag flows out through outlet pipe 25.In the present embodiment, the pressurize lower limit set value of pressure sensor is that 0.03Mpa, upper limit set value are 0.05MPa; The setting value 0.06MPa of safety valve.
Embodiment two, and Fig. 2 is the internal structure schematic diagram of the embodiment two of electric heater described in the utility model second technical scheme.In conjunction with Fig. 2, Fig. 5, Fig. 6, Fig. 7 as seen, described electric heater, comprise inner bag 23, heating 28, temperature controller 8, controller (not drawing among the figure), water inlet pipe 24 and outlet pipe 25, present embodiment is to have increased drainpipe 270 on the basis of embodiment one, and tube connector 271 and and drainpipe 270 between be provided with the pressure release electric control valve and replace safety valve 2 among the embodiment one, and this pressure release electric control valve and water inlet electric control valve, the shared valve body 47 of pressurize electric control valve, spool 48 and automatically controlled driving mechanism, when detecting in the inner bag, pressure sensor 3 presses when being higher than secure setting, controller opens pressure release electric control valve (state as shown in Figure 7), water in the inner bag 23 is through tube connector 271, connector 472,474, drainpipe 270 flows out with pressure release, other structure and principle are identical with embodiment one, do not do to state at this more.
Heating described in the above embodiment can be electrothermal tube, also can be electromagnetic heating body etc.; And described water flow sensing unit, can be that the part of one section non-magnetizer as outlet pipe is set on water stream channel, in section non-magnetizer outlet pipe, the turbine that is fixed with permanent magnet on the blade is set, corresponding turbine place, the outlet pipe outside is Hall element fixedly, when having water to flow in the outlet pipe, the turbine rotation of band permanent magnet, Hall element becomes the signal of telecommunication with the magnetic field that changes and gives controller, this is that general electronic technology personnel are attainable, does not do to state at this more.In addition, also can use the current sensing device on the existing water outlet breaker device, as among the Chinese patent CN2392122Y of bulletin on August 16th, 2000 disclosed " the water outlet auto-power-off device of electric heater ", among the Chinese patent CN2401846Y that announced on October 18th, 2000 disclosed " electric heater water outlet power-off protector ", among the Chinese patent CN2406193Y that announced on November 15th, 2000 disclosed " electric heater water flowing breaker device "; More than three relevant electric heater water outlets or water flowing breaker device be actually water flow sensing unit be set on exhalant canal.
Claims (6)
1, a kind of electric heater comprises inner bag, heating, temperature controller, controller, water inlet pipe and outlet pipe, it is characterized in that the passage of water inlet pipe is provided with normally closed water inlet electric control valve; Be provided with between pressurize chamber and inner bag and often open the pressurize electric control valve, the pressurize chamber is provided with pressure sensor and safety valve, and the pressurize chamber communicates with air pump; On the outlet pipe passage, be provided with water flow sensing unit.
2,, it is characterized in that the shared valve body of described water inlet electric control valve and pressurize electric control valve, spool and automatically controlled driving mechanism according to the described electric heater of claim 1.
3,, it is characterized in that the indoor peak of described pressurize is higher than the peak of inner bag according to claim 1 or 2 described electric heaters.
4, a kind of electric heater comprises inner bag, heating, temperature controller, controller, water inlet pipe and outlet pipe, it is characterized in that the passage of water inlet pipe is provided with normally closed water inlet electric control valve; Be provided with between pressurize chamber and inner bag and often open the pressurize electric control valve, the pressurize chamber is provided with pressure sensor, and the pressurize chamber communicates with air pump; Be provided with normally closed pressure release electric control valve between inner bag and drainpipe; On the outlet pipe passage, be provided with water flow sensing unit.
5,, it is characterized in that the shared valve body of described water inlet electric control valve, pressurize electric control valve and pressure release electric control valve, spool and automatically controlled driving mechanism according to the described electric heater of claim 4.
6,, it is characterized in that the indoor peak of described pressurize is higher than the peak of inner bag according to claim 4 or 5 described electric heaters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520003605 CN2736687Y (en) | 2004-01-16 | 2005-01-15 | Electric water heater |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420015009 | 2004-01-16 | ||
| CN200420015009.1 | 2004-01-16 | ||
| CN 200520003605 CN2736687Y (en) | 2004-01-16 | 2005-01-15 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2736687Y true CN2736687Y (en) | 2005-10-26 |
Family
ID=35307422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520003605 Expired - Fee Related CN2736687Y (en) | 2004-01-16 | 2005-01-15 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2736687Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913495A (en) * | 2015-06-24 | 2015-09-16 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method of electric water heater |
| CN107157317A (en) * | 2016-03-07 | 2017-09-15 | 广东美的生活电器制造有限公司 | A kind of liquid heating, electric hot water bottle and its anti-dry control method |
-
2005
- 2005-01-15 CN CN 200520003605 patent/CN2736687Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913495A (en) * | 2015-06-24 | 2015-09-16 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method of electric water heater |
| CN104913495B (en) * | 2015-06-24 | 2018-05-01 | 芜湖美的厨卫电器制造有限公司 | The control method of electric heater and electric heater |
| CN107157317A (en) * | 2016-03-07 | 2017-09-15 | 广东美的生活电器制造有限公司 | A kind of liquid heating, electric hot water bottle and its anti-dry control method |
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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 |