CN100526746C - Static pressure less electric water heater - Google Patents
Static pressure less electric water heater Download PDFInfo
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- CN100526746C CN100526746C CNB031404189A CN03140418A CN100526746C CN 100526746 C CN100526746 C CN 100526746C CN B031404189 A CNB031404189 A CN B031404189A CN 03140418 A CN03140418 A CN 03140418A CN 100526746 C CN100526746 C CN 100526746C
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Abstract
An electric water heater without static pressure is composed of water tank, electric heating element, temp controller, controller, water inlet and outlet tubes, electrically controlled water inlet and overflow valves, and water flow sensor.
Description
Technical field
The present invention relates to a kind of electric heater, the no static pressure 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, pressure-reducing valve, stretches into heating, the water inlet pipe that communicates with inner bag and outlet pipe in the inner bag, 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 higher hydrostatic pressing 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 pressure-reducing 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 objective of the invention is 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 no static pressure electric heater that central authorities supply water.
Technical scheme:
The technical scheme that realizes the object of the invention is: a kind of no static pressure electric heater, comprise water tank, heating, temperature controller, controller, water inlet pipe and outlet pipe, wherein water inlet pipe outer end and running water pipe join, outlet pipe outer end and mixed water valve join, and it is characterized in that being provided with between water tank and water inlet pipe into water electric control valve; Overflow pipe communicates with water tank, and the passage of overflow pipe is provided with the spilling water electric control valve, and the spilling water point of overflow pipe is close to or higher than the top of water tank, and the water that flows out through overflow pipe when preventing that the spilling water electric control valve from opening is too many and cause waste; Spilling water point is defined as follows: when the spilling water electric control valve was opened, the above water of spilling water point that is positioned at overflow pipe in the water tank outwards overflowed through overflow pipe, and the water that is positioned at below the spilling water point of overflow pipe can not overflow; The part that leaves residual water in outlet pipe passage or overflow pipe is provided with water flow sensing unit, and water flow sensing unit is electrically connected with described controller; When having detected water, water flow sensing unit when mobile, sends the signal of telecommunication to controller, controller control spilling water closed electromagnetic valve, entering water electromagnetic valve are opened, water flow sensing unit does not detect when having water to flow and sends the signal of telecommunication that resets to controller, and controller control entering water electromagnetic valve is closed, the spilling water magnetic valve is opened.Leave the part of residual water in the so-called overflow pipe, be meant, the part that the water that adheres in the overflow pipe can not be overflowed fully because of the outside spilling water of overflow pipe causes vacuum in the water tank.When no static pressure electric heater is in the normal state (holding state), the water inlet electric control valve is closed, and the spilling water electric control valve is opened, water tank communicates with atmosphere through spilling water electric control valve and overflow pipe, its holding state is equivalent to the holding state of open type electric water heater, is not subjected to the static pressure of running water in the water tank; The user opens when mixing water valve, as long as the spilling water point of mixed water valve and the spilling water point of overflow pipe be not at sustained height, residual water in outlet pipe and the overflow pipe will flow and (flow out and mix outside water valve or the overflow pipe, perhaps in water tank, reflux), after water flow sensing unit detects current, send signal to controller, controller cuts out the spilling water electric control valve, the electric control valve of will intaking is simultaneously opened, electric heater enters user mode, running water is through water inlet pipe, the water inlet electric control valve, water tank, outlet pipe flows to and mixes water valve, and its user mode is equivalent to the user mode of closed electrical water heater; After the user closes and mixes water valve, water in the outlet pipe does not flow, and overflow (because this reason behind the water of fraction in the water tank, so water flow sensing unit had better not be arranged on the part that leaves residual water in the overflow pipe, otherwise can reduce its reliability), the water surface and spilling water point maintain an equal level, spilling water no longer, produce certain vacuum in the water tank this moment, (this residual water is only after mixed water valve is opened to leave the part residual water in overflow pipe, just can flow when making interior pressure of water tank and atmospheric pressure balance), controller monitors after current stop by water flow sensing unit, close into water electrically-controlled valve immediately or after time-delay (can be fixed) a period of time, open the spilling water electric control valve simultaneously, make electric heater reenter holding state by factory's family livehood.Certainly, if water flow sensing unit is installed on the overflow pipe passage, then the internal diameter of overflow pipe can not be too big, open the spilling water electric control valve even make to mix when water valve cuts out, also leave residual water (because this moment inner bag have only communicate) in the overflow pipe with atmosphere by overflow pipe because of there being certain vacuum in the water tank.
Described no static pressure electric heater is characterized in that being provided with water-level probe in the described water tank, and the position of water-level probe is higher than the water inlet of outlet pipe.Its effect is when water level is lower than water-level probe in the water tank, and controller opens water inlet electric control valve supplies water in water tank.
Described no static pressure electric heater is characterized in that described water inlet electric control valve is a normal closed gate.
Described no static pressure electric heater is characterized in that described water inlet electric control valve and spilling water electric control valve are conjoined device, this conjoined device shared valve body, a spool and have bistable automatically controlled driving mechanism.The bistable state of described automatically controlled driving mechanism is meant the operating state of normality and electric driving mechanism.The water inlet electric control valve that described conjoined device constitutes is that normally closed, spilling water electric control valve is for often opening.The water inlet electric control valve is designed to normally closed, the benefit that the spilling water electric control valve is designed to often open is, when electrical control mechanism is malfunctioning, guarantee that no static pressure electric heater is in the open type working method, and described water inlet electric control valve and spilling water 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 spilling water electric control valve is closed.
Described no static pressure electric heater is characterized in that described overflow pipe is positioned at the outer part of water tank as buffer tank, and this buffer tank is higher than tank top, and the spilling water point is positioned at buffer tank top.
Described no static pressure electric heater is characterized in that being provided with in the described buffer tank high and low level sensor.When the water level in controller detects buffer tank had reached high water level, if the user opens when mixing water valve, controller waited for that the interior water of buffer tank after mixed water valve is discharged into low water level, makes electric heater enter user mode again.Its benefit is to make the interior water of buffer tank need not overflow electric heater to cause waste outward.
Described no static pressure electric heater is characterized in that described water tank bottom is provided with the draining electric control valve.
Described no static pressure electric heater, it is characterized in that described water inlet electric control valve, spilling water electric control valve and draining electric control valve are conjoined device, this conjoined device shared valve body, a spool and have tristable automatically controlled driving mechanism, water inlet electric control valve and draining electric control valve that described conjoined device constitutes are normal closed gate, and the spilling water electric control valve is the normally open valve door.Wherein the three-stable state of automatically controlled driving mechanism is meant normality, user mode and three kinds of stable states of hull-borne; During normality, water inlet electric control valve and draining electric control valve are closed, and the spilling water electric control valve is opened; During user mode, the water inlet electric control valve is opened, and draining electric control valve, spilling water electric control valve are closed; During hull-borne, the water inlet electric control valve is closed, and draining electric control valve and spilling water electric control valve are opened.
Beneficial effect:
Owing to adopted technical solutions according to the invention, electric heater in use, water tank is in closed state, and the water in the water tank flows, and presses much smaller than tap water hydraulic in water tank is suffered, so, can realize that central authorities supply water, easy to use; And during holding state when normality (also), water tank is the open type state, be not subjected to the effect of running water hydrostatic pressing, suffered interior pressure is minimum, has avoided water tank in the existing electric heater to be in the state of HTHP for a long time, has prolonged the life-span of water tank, security is improved, and 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 invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the internal structure schematic diagram of the embodiment one of no static pressure electric heater of the present invention.
Fig. 2 is the internal structure enlarged drawing of the electric control valve of Fig. 1 embodiment one when being in the normal state.
Fig. 3 is the schematic diagram of the electric control valve of Fig. 2 when being in user mode.
Fig. 4 is the schematic diagram of the electric control valve of Fig. 2 when being in hull-borne.
Fig. 5 is the internal structure schematic diagram of the embodiment two of no static pressure electric heater of the present invention.
Fig. 6 is the internal structure schematic diagram of the embodiment three of no static pressure electric heater of the present invention.
Internal structure enlarged drawing when the used electric control valve of Fig. 7 Fig. 6 embodiment is in the normal state.
Fig. 8 is the schematic diagram of the described electric control valve of Fig. 7 when being in user mode.
Fig. 9 is the schematic diagram of the described electric control valve of Fig. 7 when being in hull-borne.
Figure 10 is the outward appearance enlarged drawing of the used electric control valve of Fig. 6 embodiment valve seat when adopting another kind of structure.
Figure 11 is the schematic appearance with the supporting valve gap of Figure 10.
Figure 12 is the principle schematic when being in the normal state after valve seat among Figure 10 and the assembling of the valve gap among Figure 11.
Figure 13 is the principle schematic of electric control valve shown in Figure 12 when being in user mode.
Figure 14 is the principle schematic of electric control valve shown in Figure 12 when being in hull-borne.
Among the figure 1, shell, 2, inner bag, 3, heat-insulation layer, 4, outlet pipe, 401, water inlet, 41, branch road, 5,51, water inlet pipe, 56, electric control valve, 561, spool, 6, overflow pipe, 601, the spilling water point, 61, overflow pipe, 62, drainpipe, 7, heating, 8, temperature controller, 9, water-level probe, 10, water flow sensing unit, 11,12, electric control valve, 120, buffer tank, 121,122, overflow pipe, 124,125, level sensor, 16, valve body, 17, spool, 18, valve seat, 19, valve gap, 161,162,163,164,181,182,183,184, the hole, 191, groove, 1009, water flow sensing unit, 4009, outlet pipe.
The specific embodiment:
Embodiment one, and Fig. 1 is the internal structure schematic diagram of an embodiment of no static pressure electric heater of the present invention.As can be seen from Fig. 1, described no static pressure electric heater comprises shell 1, water tank 2, heat-insulation layer 3, outlet pipe 4, water inlet pipe 5 and 51, overflow pipe 6 and 61, heating 7, temperature controller 8, water-level probe 9, water flow sensing unit 10; Wherein water inlet pipe 51 outer ends and running water pipe join, and outlet pipe 4 outer ends and mixed water valve join, and water inlet electric control valve, spilling water electric control valve and draining electric control valve are conjoined device---electric control valve 56; Electric control valve 56 shared valve body, spools and have tristable automatically controlled driving mechanism, water inlet electric control valve that electric control valve 56 constitutes and draining electric control valve are that normally closed, spilling water electric control valve is for often opening (Fig. 2); Be provided with water flow sensing unit 10 at the outlet pipe passage; Be provided with water-level probe 9 in the water tank, the position of water-level probe 9 is higher than the water inlet 401 of outlet pipe 4; During normality, electric control valve 56 inside as shown in Figure 2, (corresponding draining electric control valve) is closed between (corresponding to the water inlet electric control valve) between the water inlet pipe 51 and 5, water inlet pipe 5 part of drainpipe (this moment be equivalent to) and the overflow pipe 61 (part that is equivalent to drainpipe at this moment), (corresponding spilling water electric control valve) communicates between the overflow pipe 6 and 61, and its spilling water point 601 is water inlets of overflow pipe 6; When opening when mixing water valve, the current direction that remains in the outlet pipe 4 mixes water valve (when the delivery port of mixed water valve is lower than water tank) or backflow in water tank (when the delivery port of mixed water valve is higher than water tank), after water flow sensing unit 10 detects water and flows, controller rotates counterclockwise an angle (shown in Figure 3) with the spool 561 of the electrically-controlled valve of Fig. 2 state, make electric heater enter user mode, its electric control valve inside as shown in Figure 3, between the overflow pipe 6 and 61, be closed between water inlet pipe 5 and the overflow pipe 61, and water inlet pipe 5 is communicated with 51, and running water is through water inlet pipe 51 and 5, water tank 2, outlet pipe 4 flows to and mixes water valve; User such as need are during with the water emptying in the water tank, can press a knob that is preset on the controller, the spool 561 of the electric control valve 56 during controller will be in the normal state clockwise rotates an angle, as shown in Figure 4, make between water inlet pipe 51 and 5, close between the overflow pipe 6 and 61, open as the draining electric control valve between water inlet pipe 5 and the overflow pipe 61, the water in the water tank discharges through water inlet pipe 5, overflow pipe 61; Certainly, if will mix water valve open this moment, then drainage procedure is more freely suitable, and not so, then water inlet pipe 5, drainpipe 61 must be enough greatly, can not be fully with the water emptying in the water tank in order to avoid occur vacuum in the water tank.
Embodiment two, and Fig. 5 is the internal structure schematic diagram of the embodiment two of no static pressure electric heater of the present invention.As can be seen from Fig. 5, described no static pressure electric heater comprises shell 1, inner bag 2, heat-insulation layer 3, outlet pipe 4009, water inlet pipe 5 and 51, overflow pipe 61, heating 7, temperature controller 8, water-level probe 9, water flow sensing unit 1009; It is outlet pipe among the embodiment one 4 (Fig. 1) and overflow pipe 6 (Fig. 1) to be united two into one form outlet pipe shown in Figure 5 4009 and branch road 41; The internal structure of its electric control valve 11 is identical with the internal structure of the electric control valve 56 of embodiment one.
Embodiment three, and Fig. 6 is the internal structure schematic diagram of the embodiment three of no static pressure electric heater of the present invention.As can be seen from Fig. 6, described no static pressure electric heater comprises shell 1, water tank 2, heat-insulation layer 3, outlet pipe 4, water inlet pipe 5 and 51, overflow pipe 121 and 122, heating 7, temperature controller 8, water-level probe 9, water flow sensing unit 10; Wherein water inlet pipe 51 outer ends and running water pipe join, and outlet pipe 4 outer ends and mixed water valve join, and water inlet electric control valve, spilling water electric control valve and draining electric control valve are conjoined device---electric control valve 12; Electric control valve 12 shared valve body, spools and have tristable automatically controlled driving mechanism, water inlet electric control valve (between the water inlet pipe 51 and 5) that electric control valve 12 constitutes and draining electric control valve (between overflow pipe 121 and the drainpipe 62) are that normally closed, spilling water electric control valve (between water inlet pipe 5 and the overflow pipe 121) is for often opening (Fig. 7); As can be seen from Fig. 7, electric control valve 12 is made of valve body 16 and spool 17, its hole 161,162,163,164 on valve body 16 taps into water pipe 51,5, overflow pipe 121, drainpipe 62 respectively, the buffer tank 120 that is higher than water tank 2 couples together overflow pipe 121 and 122, spilling water point is provided with high and low level sensor 124 and 125 at the highest point of overflow pipe 122 in the buffer tank 120; Be provided with water flow sensing unit 10 at the outlet pipe passage; During normality, electric control valve 12 inside as shown in Figure 7, (draining electric control valve) closes between (water inlet electric control valve), overflow pipe 121 between the water inlet pipe 51 and 5 part of drainpipe (this moment be equivalent to) and the drainpipe 62, and (spilling water electric control valve) communicates between overflow pipe 121 and the water inlet pipe 5 (part that is equivalent to overflow pipe at this moment); When opening when mixing water valve, the current direction that remains in the outlet pipe 4 mixes water valve (when the delivery port of mixed water valve is lower than water tank) or backflow in water tank (when the delivery port of mixed water valve is higher than water tank), water flow sensing unit 10 detects water and flows, and water level no show high water level sensor 124 places in the buffer tank, then controller rotates counterclockwise an angle (shown in Figure 8) with the spool 17 of the electrically-controlled valve of Fig. 7 state, make electric heater enter user mode, its electric control valve internal state as shown in Figure 8, between overflow pipe 121 and the water inlet pipe 5, be closed between overflow pipe 121 and the drainpipe 62, and water inlet pipe 5 is communicated with 51, and running water is through water inlet pipe 51 and 5, water tank 2, outlet pipe 4 flows to and mixes water valve; After the user opens and mixes water valve, when if controller finds that the water level in the buffer tank 120 reaches high water level sensor 124 places, then the electric control valve 12 in controller control chart 7 states turns over an angle clockwise to hull-borne shown in Figure 9, water in the buffer tank 120 is discharged through drainpipe 62, after water level in buffer tank 120 dropped to low water level sensor 125 residing positions, controller was driven into electric control valve user mode shown in Figure 8 again.Figure 10 is the outward appearance enlarged drawing of valve seat 18 when used electric control valve adopts another kind of structure in the present embodiment, and wherein the hole on the valve seat 181,182,183,184 joins with water inlet pipe 51,5, overflow pipe 121, drainpipe 62 respectively; Figure 11 is and the schematic appearance of the supporting valve gap 19 of Figure 10 that the back of valve gap shown in the figure 19 is provided with groove 191; Figure 12 is the principle schematic when being in the normal state after valve seat among Figure 10 and the assembling of the valve gap among Figure 11, hole 182 in the valve seat is communicated with by the groove on the valve gap 191 with 183 at this moment, also be that water inlet pipe 5 is communicated with overflow pipe 121, and the principle schematic of Figure 13 when to be this electric control valve be in user mode, at this moment, hole 182 and 181 is communicated with, also be that water inlet pipe 51 and 5 is communicated with, Figure 14 is the principle schematic of this electric control valve when being in hull-borne, and at this moment, hole 182,183,184 is interconnected.
Water flow sensing unit described in the above embodiment, 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 (5)
1, a kind of no static pressure electric heater comprises water tank, heating, temperature controller, controller, water inlet pipe and outlet pipe, it is characterized in that being provided with between water tank and water inlet pipe into water electric control valve; Overflow pipe communicates with water tank, and the passage of overflow pipe is provided with the spilling water electric control valve, and the spilling water point of overflow pipe is close to or higher than the top of water tank; The part that leaves residual water in outlet pipe passage or overflow pipe is provided with water flow sensing unit; Water flow sensing unit sends signal to controller after detecting current, and controller cuts out the spilling water electric control valve, and the electric control valve of will intaking is simultaneously opened; Controller monitors after current stop by water flow sensing unit, closes into water electrically-controlled valve, opens the spilling water electric control valve simultaneously.
2,, it is characterized in that described water inlet electric control valve is a normal closed gate according to the described no static pressure electric heater of claim 1.
3,, it is characterized in that described water inlet electric control valve and spilling water electric control valve are conjoined device, this conjoined device shared valve body, a spool and have bistable automatically controlled driving mechanism according to the described no static pressure electric heater of claim 2.
4,, it is characterized in that described water tank bottom is provided with the draining electric control valve according to the described no static pressure electric heater of claim 1.
5, according to the described no static pressure electric heater of claim 4, it is characterized in that described water inlet electric control valve, spilling water electric control valve and draining electric control valve are conjoined device, this conjoined device shared valve body, a spool and have tristable automatically controlled driving mechanism, water inlet electric control valve and draining electric control valve that described conjoined device constitutes are normal closed gate, and the spilling water electric control valve is the normally open valve door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031404189A CN100526746C (en) | 2003-09-03 | 2003-09-03 | Static pressure less electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031404189A CN100526746C (en) | 2003-09-03 | 2003-09-03 | Static pressure less electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1590916A CN1590916A (en) | 2005-03-09 |
| CN100526746C true CN100526746C (en) | 2009-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031404189A Expired - Fee Related CN100526746C (en) | 2003-09-03 | 2003-09-03 | Static pressure less electric water heater |
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| CN (1) | CN100526746C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105352169B (en) * | 2015-11-26 | 2018-07-24 | 浙江雨林电子科技有限公司 | A kind of small kitchen of practicality is precious |
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| CN1590916A (en) | 2005-03-09 |
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Granted publication date: 20090812 Termination date: 20100903 |