CN100520221C - Autocontrol multi-channel central water supply and storage type electric water heater - Google Patents
Autocontrol multi-channel central water supply and storage type electric water heater Download PDFInfo
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- CN100520221C CN100520221C CNB2005100336920A CN200510033692A CN100520221C CN 100520221 C CN100520221 C CN 100520221C CN B2005100336920 A CNB2005100336920 A CN B2005100336920A CN 200510033692 A CN200510033692 A CN 200510033692A CN 100520221 C CN100520221 C CN 100520221C
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Abstract
The invention relates to a auto-control multi channel central water supply and storing electric water heater which consists of shell, inner core, water inlet and outlet tube, water outlet tube, electric heating tube and its control circuit. Concatenate a electric control valve between the water inlet tube and the inner core, and a flow sensor in the heat water outlet tube in each multi channel water supply channel point. Air conducting overflow tube and electric control valve are also set on the inner core or the water outlet tube. The product has got all advantages of the sealing and opening water heater while auto release various pressing forces on the inner core which totally eliminates the metallic phase corruption due to kinds of pressing forces and prevents the core from working under long fatigue state greatly lengthening its service life. It can also be used as separate outlay components facilitating refitting existing sealing water heating.
Description
Technical field
The present invention relates to the central water supply and storage type electric water heater of a kind of automatic control multichannel.
Background technology
Increasing experiment and market information show, the major reason that inner bag leaks appears in the most frequently used enclosed type storage-type electric water heater at present, be because inner bag is subjected to many-sided influences the such as pressure of the water expanded by heating formation in tap water hydraulic, the steam pressure that produces when heating and the heating back inner bag, the inner bag pressurized causes form constantly to change, destroy the structure of liner material, and make the courage body be in fatigue state for a long time, the life expectancy of enclosed type storage-type electric water heater is shortened, cause very big influence for the producing and selling and the use of product.
The Chinese patent CN2539934Y disclosed a kind of " electric heater that constant pressure is controlled " that announces on October 30th, 2002, it includes shell, inner bag, electric heater, electric-controlled parts, water inlet, outlet valve, mixed water valve, between water inlet and inner bag, be provided with magnetic valve, be provided with pressure switch in inner bag, magnetic valve is electrically connected with pressure switch.When the pressure in the inner bag reaches when setting value, pressure switch moves closed electromagnetic valve, has cut off being communicated with of inner bag and running water system, makes the pressure of running water system can not be delivered in the inner bag; When water, when pressure is reduced to a certain numerical value, pressure switch moves again magnetic valve is opened, and running water system supplies water in inner bag, works the pressure in the control inner bag so repeatedly.But this patent has been ignored a formidable problem: because the magnetic valve that this patent is provided with between water inlet and inner bag, outlet pipeline is all closed when not using hot water, the steam pressure that heating produced when this will cause electric heater work, and the pressure that the water expanded by heating in the inner bag of heating back forms can not discharge, and can not reach the purpose of this patent described " constant pressure is controlled ".Because the storage-type electric water heater of national safety standard regulation, must pressure-reducing valve be installed at water inlet, and the unidirectional non-return mechanism of establishing in the pressure-reducing valve, to cause the steam pressure that heating produces in the inner bag and heat the pressure that the water expanded by heating in the inner bag of back forms, before the pressure release value that does not reach the pressure-reducing valve setting, can not produce pressure release action (this numerical value is set between 0.6-0.7Mpa usually) in closed electrical water heater.And the existence of these pressure can produce ill-effect to water heater liner.
In addition, the Chinese patent CN2428724Y disclosed a kind of " the low pressure sealing courage body electric heater of valve controlled type " that announces in May 2 calendar year 2001, on the courage body diapire of this electric heater the water inlet interface is set respectively, water outlet interface and blowdown interface, at water inlet interface polyphone a magnetic valve and a pressure switch are set, at check valve of water outlet interface peripheral hardware and magnetic valve, establish an overflow pipe in the courage body, the blowdown interface is provided with a magnetic valve, on off state by the control magnetic valve, guarantee that the courage body can be communicated with atmosphere all the time, thereby realization courage body is worked under low-pressure state.But the improper part of this patent is: one, according to shown in its Figure of description, in fact this electric heater duty can only be controlled by pressure switch 4: this switch is installed in before the cold water inlet of electric heater, cold water switch 5, switch 12 are installed in after it, that is to say, if open cold water switch 5 or switch 12 use cold water separately, pressure switch 4 all can be moved.At this moment, magnetic valve 3 is opened water supply, magnetic valve 7 and 10 turn-offs, electric heater will become with common closed electrical water heater and is as good as, bear the steam pressure that the heating of tap water pressure and inner bag produces, and the pressure of the water expanded by heating formation in the inner bag of heating back, can not reach the requirement of this patent described " low pressure sealing courage body ", and water heater liner is produced ill-effect.Two, according to shown in its Figure of description, all cold water pipes in this electric heater multichannel supplies water all must insert in pressure switch 4 backs, its weak point is: as use the electric heater product of this patent, laying with the hot and cold water pipeline of common household can not be compatible, then must lay special-purpose cold water pipes again separately, increase pipeline mounting material cost, increase installation difficulty.
In sum, in fact two patented technology schemes fundamentally do not solve the closed electrical water heater inner bag intrinsic bear defectives such as various pressure are bigger more than.
Summary of the invention
At the problems referred to above, but the present invention proposes the storage-type electric water heater that a kind of multichannel central authorities with automatic control of real meaning supply water, and it is simple in structure, and is convenient and practical, can overcome the deficiencies in the prior art, have all advantages of closed and open type electric water heater.
By the central water supply and storage type electric water heater of a kind of automatic control multichannel of this purpose design, comprise shell, inner bag, water inlet pipe and water outlet pipe, blow-off pipe, electrothermal tube and control circuit, between water inlet pipe and inner bag, be connected in series a water inlet electrically-controlled valve, its architectural feature is flow sensor of serial connection in the hot water outlet pipe, and flow sensor is arranged on before each multichannel heat supply water spot pipeline; Before flow sensor, be serially connected with an one way stop peturn valve, before one way stop peturn valve and be connected to ventilation overflow pipe and electrically-controlled valve thereof; Between one way stop peturn valve and flow sensor, go back and be connected to blow-off pipe and electrically-controlled valve thereof.
The present invention is owing to be provided with ventilation overflow pipe and electrically-controlled valve thereof, all advantages with closed and open type electric water heater, and can discharge the various pressurizeds of inner bag automatically, fundamentally eliminate the destruction of various pressure to the liner material structure, avoid the courage body to be in fatigue state for a long time, greatly improve the whole service life of electric heater.It also can be used as independent external parts, convenient existing old-fashioned repacking with closed electrical water heater of sewage draining exit.
Description of drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is another example structure schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Referring to Fig. 1, it comprises shell 13, inner bag 12, electrothermal tube 14 and control circuit.Be connected in series an electrically-controlled valve 1 between water inlet pipe 4 (cold water inlet) and inner bag 12, be connected in series a water flow sensor 3 between outlet pipe 5 (hot water outlet) and inner bag 12, sensor is arranged on before each multichannel heat supply water spot pipeline.Inner bag 12 tops are provided with ventilation overflow pipe 7 and electrically-controlled valve 2 thereof, the ventilation overflow pipe/the installation site be higher than the water inlet 5 ' of outlet pipe 5 in inner container of electric water heater.Increased by one group of dry cell (or rechargeable battery) as standby DC power supply apparatus 11 at electric control system 10.
Its operation principle: when static (described static state is switched on work but do not use hot water of electric heater, down with), water inlet electrically-controlled valve 1 is closed, and the electrically-controlled valve 2 of ventilation overflow pipe 7 is opened, and inner bag 12 keeps communicating with outside atmosphere, the interior no pressure of courage.During use, when arbitrary hot-water switch is opened in the multichannel water system, flow sensor 3 actions that are connected in series with outlet pipe 5, control circuit sends instruction control ventilation overflow pipe electrically-controlled valve 2 and cuts out, the automatically controlled water valve 1 of intaking is opened, this moment, cold water entered inner bag by water inlet pipe 4 through water inlet electrically-controlled valve 1, and hot water is discharged through flow sensor 3 by outlet pipe 5, and flow sensor 3 keeps the operating state of electrically-controlled valve 2 and electrically-controlled valve 1 owing to there being water to flow.After all hot-water switch were closed in the multichannel water system, outlet pipe did not have water to flow, and flow sensor 3 resets, and control circuit sends instruction control water inlet electrically-controlled valve 1 and cuts out, and ventilation overflow pipe electrically-controlled valve 2 is opened the duty when returning to static state.Like this process is being used or can accumulated pressure when static no matter guaranteed inner bag, fundamentally eliminates the metal fatigue effect of inner bag and to the destruction of liner material structure.
Referring to Fig. 2, this electric heater, it comprises shell 13, inner bag 12, electrothermal tube 14 and control circuit etc.Between water inlet pipe 4 (cold water inlet) and inner bag 12, be connected in series an electrically-controlled valve 1, go up priority at outlet pipe 5 (hot water outlet) and be connected in series an one way stop peturn valve 9 and flow sensor 3, before one way stop peturn valve 9 and be connected to ventilation overflow pipe 7 ' and electrically-controlled valve 2 ' thereof, between one way stop peturn valve 9 and flow sensor 3 also and be connected to blow-off pipe 6 and electrically-controlled valve 8 thereof.Control circuit is set up a standby DC power supply apparatus 11.
Its operation principle: when static, water inlet electrically-controlled valve 1 is closed, and blow-off pipe electrically-controlled valve 8, ventilation overflow pipe electrically-controlled valve 2 ' are opened, and inner bag 12 keeps communicating with outside atmosphere, no pressure in the courage.Simultaneously, because the effect of one way stop peturn valve 9, though ventilation overflow pipe electrically-controlled valve 2 ' is opened, the water of inner bag can not discharged to ventilation overflow pipe 7 ' through blow-off pipe 6.During use, when arbitrary hot-water switch is opened in the multichannel water system, diversion flow sensor 3 actions that are connected in series with blow-off pipe 6, outlet pipe 5, control circuit sends instruction and suitable time-delay, startup ventilation overflow pipe electrically-controlled valve 2 ', blow-off pipe electrically-controlled valve 8 are closed, water inlet electrically-controlled valve 1 is opened, this moment, cold water entered inner bag by water inlet pipe 4 through water inlet electrically-controlled valve 1, hot water is discharged through one way stop peturn valve 9 by outlet pipe 5, and flow sensor 3 keeps the operating state of electrically-controlled valve 1, electrically-controlled valve 2 ' electrically-controlled valve 8 owing to there being water to flow.After all hot-water switch are closed in the multichannel water system, outlet pipe does not have water to flow, and flow sensor 3 resets, and control circuit sends instruction control water inlet electrically-controlled valve 1 and cuts out, ventilation overflow pipe electrically-controlled valve 2 ', blow-off pipe electrically-controlled valve 8 are opened the duty when returning to static state.Like this process is being used or can accumulated pressure when static no matter guaranteed inner bag, fundamentally eliminates the metal fatigue effect of inner bag and to the destruction of liner material structure.
The advantage of this programme maximum is that the enforcement of scheme is convenient, flexible, and it can be used as a whole electric heater product and produces and use; Can also be assembled into independent external parts to water inlet electrically-controlled valve, ventilation overflow pipe and electrically-controlled valve, blow-off pipe and electrically-controlled valve thereof, flow sensor and one way stop peturn valve, be installed at and have now among the closed electrical water heater that is provided with the blowdown outlet, with the supporting use of existing closed electrical water heater, make it have whole excellent properties of the present utility model.
The effect of ventilation overflow pipe and electrically-controlled valve among the present invention: when one, static, ventilation overflow pipe electrically-controlled valve is opened, make inner bag keep communicating with outside atmosphere, and the part that has more because of the volume increase of the water of expanded by heating can overflow the inner bag heating time and the steam of generation, all pressure of inner bag discharged fully.When two, using, before the water inlet electrically-controlled valve is not opened, introduce outside atmospheric pressure, make the smooth draining of outlet pipe,, make water heater really enter duty so that drive the flow sensor action.
For not being subjected to the characterized by city-power, at the available characteristics of storage-type electric water heater outage, the present invention has increased by one group of dry cell (or rechargeable battery) as standby DC power supply apparatus 11 at electric control system 10.When mains failure, guarantee that all the time each actuating mechanism can both be in the Optimal Control state, avoid unexpected power down influence to use, make electric heater can be in normal running status automatically for a long time.
Described electrically-controlled valve 1,2,8 can be electromagnetic control type or Electric Machine Control formula, and water inlet pipe electrically-controlled valve 1 is can be for flow fixed or be that flow is adjustable.Described flow sensor 3 can be induction, pressure inductive or Hall switch formula.
Claims (5)
1, the central water supply and storage type electric water heater of a kind of automatic control multichannel, comprise shell (13), inner bag (12), water inlet pipe and water outlet pipe, blow-off pipe (6), electrothermal tube (14) and control circuit, between water inlet pipe (4) and inner bag, be connected in series a water inlet electrically-controlled valve (1), it is characterized in that a serial connection flow sensor (3) in hot water outlet pipe (5), flow sensor is arranged on before each multichannel heat supply water spot pipeline; Before flow sensor, be serially connected with an one way stop peturn valve (9), before one way stop peturn valve and be connected to ventilation overflow pipe (7 ') and electrically-controlled valve (2 ') thereof; Between one way stop peturn valve and flow sensor, go back and be connected to blow-off pipe (6) and electrically-controlled valve (8) thereof.
2, electric heater according to claim 1 is characterized in that described electrically-controlled valve is electromagnetic control type or Electric Machine Control formula, and water inlet electrically-controlled valve (1) be that flow is fixed or be that flow is adjustable.
3, electric heater according to claim 1 is characterized in that described flow sensor is induction, pressure inductive or Hall switch formula.
4, electric heater according to claim 1 is characterized in that control circuit sets up a standby DC power supply apparatus (11).
5, electric heater according to claim 1, it is characterized in that described water inlet electrically-controlled valve, ventilation overflow pipe and electrically-controlled valve, blow-off pipe and electrically-controlled valve thereof, flow sensor and one way stop peturn valve are assembled into independent external parts, so that have a supporting use of closed electrical water heater that sewage draining exit is provided with existing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100336920A CN100520221C (en) | 2005-03-15 | 2005-03-15 | Autocontrol multi-channel central water supply and storage type electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100336920A CN100520221C (en) | 2005-03-15 | 2005-03-15 | Autocontrol multi-channel central water supply and storage type electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1657841A CN1657841A (en) | 2005-08-24 |
| CN100520221C true CN100520221C (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100336920A Expired - Fee Related CN100520221C (en) | 2005-03-15 | 2005-03-15 | Autocontrol multi-channel central water supply and storage type electric water heater |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825340B (en) * | 2009-03-04 | 2012-09-19 | 海尔集团公司 | Water heater with lower inner liner pressure |
| KR101029773B1 (en) * | 2009-04-07 | 2011-04-19 | 안효영 | apparatus for suppling water |
| CN103292457B (en) * | 2012-02-24 | 2017-09-26 | 重庆海尔热水器有限公司 | Water storage type water heater capable of reducing pressure of inner container |
| WO2015024535A1 (en) * | 2013-08-23 | 2015-02-26 | 芜湖美的厨卫电器制造有限公司 | Water heater, waste removal device thereof, and waste removal control method |
| CN104110831A (en) * | 2013-12-06 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN103994574B (en) * | 2014-05-30 | 2017-01-04 | 艾欧史密斯(中国)热水器有限公司 | There is water heater and waterpower row's dirt valve of waterpower scale discharge function |
| CN108870719A (en) * | 2017-05-16 | 2018-11-23 | 青岛经济技术开发区海尔热水器有限公司 | Water storage type water heater |
| CN107975938A (en) * | 2017-12-28 | 2018-05-01 | 山西玛斯特科技股份有限公司 | A kind of atmospheric hot-water courage device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428724Y (en) * | 2000-06-28 | 2001-05-02 | 王锦林 | Valve-controlled low-pressure enclosed inner-tube electric water heater |
| CN1590915A (en) * | 2003-09-03 | 2005-03-09 | 麦广海 | Static pressure less electric water heater |
| CN2767893Y (en) * | 2005-01-08 | 2006-03-29 | 何家强 | Automatically controlled multi-way central water supply and water storage type electric water heater |
-
2005
- 2005-03-15 CN CNB2005100336920A patent/CN100520221C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428724Y (en) * | 2000-06-28 | 2001-05-02 | 王锦林 | Valve-controlled low-pressure enclosed inner-tube electric water heater |
| CN1590915A (en) * | 2003-09-03 | 2005-03-09 | 麦广海 | Static pressure less electric water heater |
| CN2767893Y (en) * | 2005-01-08 | 2006-03-29 | 何家强 | Automatically controlled multi-way central water supply and water storage type electric water heater |
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| Publication number | Publication date |
|---|---|
| CN1657841A (en) | 2005-08-24 |
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Granted publication date: 20090729 Termination date: 20110315 |