CN1243933A - Water supply system for water heater to automatically supply cold water without mixing with hot water - Google Patents
Water supply system for water heater to automatically supply cold water without mixing with hot water Download PDFInfo
- Publication number
- CN1243933A CN1243933A CN 98113304 CN98113304A CN1243933A CN 1243933 A CN1243933 A CN 1243933A CN 98113304 CN98113304 CN 98113304 CN 98113304 A CN98113304 A CN 98113304A CN 1243933 A CN1243933 A CN 1243933A
- Authority
- CN
- China
- Prior art keywords
- hot water
- water
- cold water
- cold
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
A water supply system for water heater has a single hot water tank, in which there are heater and sealed cold water tank at the top part of hot water tank for temporal storage of cold water in it. The hot water in hot water tank can not immediately mixed with the cold water in cold water tank. After cold water feed is stopped and it is heated to a certain temp, a unit to change the position of sealed cold water tank or its size is used to feed the water from cold water tank to hot water one through another pipe for heating it. The level of hot water is kept constant, saving space and preventing fire accident caused by empty burning.
Description
The invention relates to and in hot water uses, inject cold water simultaneously and not mixed mutually with hot water electric heater constant temperature water supply system refers to a kind of heat storage type hot water barrel who is installed in the flushing type toilet that is suitable for especially, the water supply system of electric heater and water dispenser.In hot water uses, cold water is flow into earlier in the locking device that can do to stretch in the single hot water storgae, the minimizing of using with increase of injecting the cold water capacity and hot water moves down.During hot water, open the cold water drain tube by control circuit in case stop using again, the cold water that is housed in the locking device is subjected to the external force effect, flows out from drain tube, flows into hot water storgae, is formed on the cold water of annotating when using hot water and does not mix the person mutually with hot water.
Look into the water heater of general use electric heating heating cold water, the heat storage type hot water barrel that installed of flushing type toilet for example, its cold water loading system is when flushing hot water, replenishes cold water simultaneously and goes in the hot water barrel.With service time continue carry out, because of cool water quantity increases, hot water reduces gradually, causing mixed warm water has more Xian's cold phenomenon that heals.Head it off generally then adopt to strengthen electrical power electric current and voltage, does instantaneous heating, owing to be special special-purpose big voltage and current loop of installing, not only assembling is complicated, constructional difficulties, and except that increasing the and also raising simultaneously of equipment failure rate of equipment cost; Moreover, be short of security because of current loading is too high.In addition, water dispenser, though cold boiling water is distinctly to use, the other standby cold water aqua storage tank and of only still needing adds hot water storgae, causes the volume that increases body and occupies the space, and do not add cold water over a long time and can cause empty burning.
It is desirable not to the utmost and do not conform to practicality to the present invention is directed to the various electrothermal cold water water supply systems of commonly using, via concentrating on studies, finally finish one up to the innovative design that is not seen in public use, provide one be enclosed within mend when using electric heating hot water into cold water and the single-channel type hot water water supply system of not mixing mutually immediately with hot water, be separated out a locking device in single-channel type hot water tank inner and upper, cold water injects in this locking device simultaneously during using hot water, closes magnetic valve in the drain tube by a control circuit simultaneously; When stopping water,, make the cold water that before is stored in the locking device be subjected to the effect of external force and dwindle, and flow in the hot water aqua storage tank from the drain tube that locking device therewith is communicated with again by control circuit breakdown drain tube magnetic valve.After the volume for the treatment of enclosure space shrinks fully, the cold water in the extendable room has been pushed fully inject hot water storgae after, stop water filling at once, the cold water of injection maintains hot water within the range of set temperature via heating of heater again.So, when using hot water, cold water and not mixing mutually with hot water, and when not using hot water again row inject cold water through heating, for standby to setting temperature.The present invention then conceives hurriedly and the person of finishing based on this.
Main purpose of the present invention, promptly be to provide a kind of cold water of in hot water uses, annotating and not mixed mutually single-channel type electric heater constant temperature water supply system with hot water, it is in single hot water storage tank inner and upper the one temporary storage cold water locking device with flexible or expansion contractile function to be set, by control circuit, in using hot water, being about to cold water earlier flows in the locking device of aqua storage tank top, the cold water of being about to again when not using in the Expansion container is clamp-oned in the hot water storgae, makes hot water in the aqua storage tank remain on the volume person of certain water level often.
A time purpose of the present invention, be to provide a kind of needn't be the hot water storage tank outside again row add cold water storage tank and the single aqua storage tank that adds hot water storgae, can save the spatial volume of device such as electric heater and can prevent and add the fire that cold water does not cause the sky burning because of long-term.
Another purpose of the present invention, be to provide a kind of hot water use in the cold water of filling and not mixed mutually single-channel type electrical water heater water supply system with hot water, the locking device that wherein is installed in hot water storage tank top is a telescopic container, general snake belly tube by the moulding of synthetic resin institute, and bottom this snake belly tube, be connected with to have the plate-like material person of buoyancy, as the water repellency sponge, materials such as the poly-stupid ethene of foaming; Again, Expansion container can be pocket, as has rubber system flexible bag of breathing effect etc., and promptly cold water vessels (bag) can be with water filling or draining and the person that freely do not stretch.
Other purposes of the present invention and main special efficacy will cooperate following accompanying drawing to describe it in detail.
Fig. 1 injects single-channel type electric heater device water supply system that cold water do not mix mutually with the hot water schematic diagram in a process in using for hot water of the present invention.
Fig. 2 is the another kind of different organigrams of single-channel type electric heater device water supply system shown in Figure 1.
Fig. 3 is the schematic diagram of cold water of the present invention and second kind of water supply system of the immiscible single-channel type electric heater of hot water device.
Fig. 4 is the schematic diagram of cold water of the present invention and the third water supply system of the immiscible single-channel type electric heater of hot water device.
Fig. 5 is the schematic diagram of cold water of the present invention and the 4th kind of water supply system of the immiscible single-channel type electric heater of hot water device.
Fig. 6 is another different organigram of single-channel type electric heater device water supply system shown in Figure 1.
Fig. 7 is another different organigram of single-channel type electric heater device water supply system shown in Figure 1.
Symbol description is as follows: 1------hot water storage tank, 2------cold water water injection pipe, 3------cold water drain tube, the 4------hot water discharge pipe, the 5------electric heater, 6, the 6a------temperature detector, the 7------power supply unit, the 8------hydrothermal area, 11------cold water Expansion container (bag), 11a------silica gel bag, 11b------silica gel dish, the 12------floating plate, the 13------motor, 21------magnetic reed switch, 31------magnetic valve, the inside and outside wall of 101a, 101b------, the 102------spring
At first please refer to Fig. 1,1 is the hot water storage tank, and 2 is the cold water water injection pipe, and 3 is the cold water drain tube, and 4 is the hot water water-supply-pipe, and 5 is electric heater, and 6 is thermostat, and 7 is power supply.Shown in figure, be installed in the magnetic reed switch 21 of cold water water injection pipe 2, be connected with magnetic valve 31 in cold water drain tube 3, and the electric heater device 5 that is installed in hot water storage tank 1 bottom, temperature detector 6 is to constitute a control circuit with power supply unit 7.
Main purpose of the present invention and being characterized as, use single hot water storage tank 1, be hung with and constitute a locking device for the cold water Expansion container (bag) 11 of the tool snake belly tube shape constriction device of temporarily storing storage cold water in hot water storage tank 1 inner and upper, when using hot water, hot water water level in the hot water storage tank 1 descends, the cold water that cold water promptly flows to from water channel injects the position in the Expansion container 11 of hot water storage tank 1 inside, and cold water is not mixed mutually with hot water.Therefore, remain on uniform temperature and discharge at hydrothermal area 8 hot water.In the time of in cold water flows into Expansion container 11, current make magnetic reed switch 21 starts, close magnetic valve 31 via control circuit and close cold water drain tube 3.Because hot water reduction (being the water level slippage) in the inside of hot water storage tank 1, occupied because of gravity constantly by the Expansion container 11 of following decline, so though the entire inner space of hot water storage tank 1 has flowed out part hot water through using, still can make part hot water surround the surrounding space of Expansion container 11 constantly by the decline of Expansion container 11.In case stop using behind the hot water, because the cold water Expansion container is subjected to the squeezing action of hot water buoyancy in the hot water storage tank, the cold water in the Expansion container can be because of the unlatching of magnetic valve 31, make in the container cold water from cold water drain tube 3 flow in the hot water storgaes 1 and additional it.So when using hot water, reach the immiscible purpose of hot and cold water.Be with, single groove water heater water supply system of the present invention, in the control circuit that is equiped with magnetic reed switch 21 and magnetic valve 31, during using hot water, during promptly from hot water discharge pipe's 4 outflow hot water, the cold water that flows to from water channel then flows in the cold water Expansion container 11 of hot water storage tank 1 inner and upper via water injection pipe 2, in water injection pipe 2 water fillings, water flows magnetic reed switch 21 is connected, and makes moving electromagnetic valve 31 and closes cold water drain tube 3.Along with the reduction of discharging hot water water level, the water injection rate that flows into Expansion container 11 increases relatively and stretches to trench bottom; When stopping using hot water, because of cold water pipe 2 stops water filling, water flows and stops and magnetic reed switch opens circuit for 21 one-tenth, and the magnetic valve 31 in the start breakdown cold water drain tube 3.Remaining in the buoyancy that hot water produced of hydrothermal area 8 and cold water Expansion container 11 outsides and the restoring force of snake belly tube this moment acts on cold water Expansion container 11 and makes cold water Expansion container 11 come-ups shrink.Cold water promptly 3 flows in hydrothermal area 8 from hot water storage tank 1 lower left from Expansion container 11 along drain tube.Along with rising on hydrothermal area's 8 water levels the Expansion container 11 left spaces of rising are filled up, to fully cold water being injected hydrothermal area 8, floating plate 12 buoyance lifts of Expansion container bottom arrive the storage tank top and are blocked, and stop water filling at once automatically.The cold water Yin Wendu that flows into the hydrothermal area this moment descends and is promptly heated by temperature detector 6 breakdown electric heaters 5, stops at once heating after the temperature that arrival sets, in order to using next time.
Fig. 2 is the another kind structure of the immiscible water supply system of hot water or cold water shown in Figure 1, can with store temporarily in Expansion container 11 cold water wait leak into hydrothermal area 8 during heat in advance.So, as be used in the occasion of water heater shower, the water that replenishes hydrothermal area 8 in mode as described in Figure 1 during suspending with hot water is hot water also, the hot water that flows out when guaranteeing to re-use not as shown in Figure 1 situation because of sneaking into cold water the disappearance of waiting for the water temperature rising is arranged.Member identical with Fig. 1 in Fig. 2 is with same figure denote.The structure that this is shown in Figure 2 and Fig. 1 structure do not exist together for control circuit and in cold water Expansion container 11, install again another electric heater 5 ', and with a magnetic valve 31 ' be directly installed on floating plate 12 inside.Situation as described in Figure 1, when discharging the 4th from hot water, the hot water in hydrothermal area 8 gives off between the operating period, hot water water level in hydrothermal area 8 descends because of outflow, causes Expansion container 11 and also follows decline, and cold water also injects in the Expansion container 11 simultaneously along cold water water injection pipe 2 simultaneously.At this moment, 6a monitors out cold water temperature by temperature detector, makes electric current flow into electric heater 5 ' and cold water in the heating Expansion container 11.When treating that water temperature is increased to design temperature, temperature detector 6a cut-out electric heater 5 ', and do moving electromagnetic valve 31 ' unlatching synchronously, then with aforementioned, the hot water buoyancy in hydrothermal area 8 and the restoring force of Expansion container act on Expansion container 11 and floating plate 12, with Expansion container 11 extruding and shrink, with the already heated cold water in the container 11 in magnetic valve 31 ' inflows hydrothermal area 8 and additional it.Because water temperature is identical with person in the hydrothermal area 8, can reduce the time of waiting for hot water.The device of this kind preheating cold water in Expansion container 11 can make the present invention more can be applicable to as electric heating drinking machine, maintains boiling water constantly for using.
Figure 3 shows that second kind of embodiment of the immiscible electric heater constant temperature of cold water of the present invention and hot water water supply system, its is in the Expansion container 11 that with silica gel bag 11a replace at Fig. 1 different with Fig. 1, reach hot water storage tank 1a and have the gap that separates by inside and outside wall 101a, 101b, and the openend of silica gel bag 11a is linked together with the spiral spring 102 that is looped around in this gap; In addition, the other end of this helical spring 102 is fixed on the bottom of this gap, make silica gel bag 11a all the time by 102 of helical springs in the gap.As aforementioned, when hydrothermal area 8 hot water after hot water discharges 4 flowing water, cold water is heavily revolted spring 102 because of water-in-bag and is followed the decline of hot water water level and descend in cold water water injection pipe 2 injects silica gel bag 11a.When waiting to stop to flow out hot water, by the buoyancy that hot water produced in the hydrothermal area 8 and the restoring force of spring 102,11a is pulled upwardly with the silica gel bag, will be stored in the cold water compressing that silica gel bag 11a uses simultaneously and flow in the hydrothermal areas 8 from cold water drain tube 3.
Figure 4 shows that in order to implement the third embodiment of constant temperature water supply system of the present invention, wherein utilize a small size motor 13,, act on the floating plate 12 of Expansion container 11 bottoms via for example nylon wire, finer wire 14.When the hot water in the hydrothermal area 8 when hot water discharge pipe 4 is flowed out, the hot water water level descends and cold water injects in the Expansion containers 11 and by flowing cold water actuating magnetic reed switch 21 in pipe from cold water water injection pipe 2, will be installed in magnetic valve 31 on the floating plate 12 ' close.When stopping 4 outflows of self-discharging pipe, magnetic reed switch 21 makes motor 13 rotations reach opens solenoid valve 31 again ".Because hydrothermal area 8 hot water buoyancy and motor 13 are made a concerted effort the strength of floating plate 12 pull-ups, and the cold water in the Expansion container 11 " are injected in the hydrothermal area 8 and mix with the former hot water that has, and be heated to constant temperature by electric heater 5 via the magnetic valve of having opened 31.Motor 13 to predetermined extent, can stop Expansion container 1 pull-up via a conventional devices of microswitch etc. for example with motor 13.Because this is known skill, will not repeat at this.
Fig. 5 is that one silica gel dish 116 places in the hot water storage tank 1 in order to the 4th kind of enforcement of enforcement constant temperature water supply system of the present invention.It is discoid that this silica gel dish 11b becomes, and smaller the reaching around circumference circle of the internal diameter of diameter and hot water storage tank 1 makes to have bead 1101b.Usually, the openend diameter of bead 1101b is smaller than the lower curtate person.As shown in Figure 5, when hot water when hot water discharge pipe 4 is released, cold water also begins to flow in the sealed space that is separated by silica gel dish 11b because of the decline of silica gel dish 11b.Because the static pressure of the inner cold water of silica gel dish 11b superjacent air space makes so, the openend of the bead 1101b of silica gel dish 11b is outwards strutted, be close to the inwall of hot water storage tank 1, and, descend in company with the decline of hydrothermal area's water level because of the weight of cold water makes silica gel rim inwall.Because the cold water static pressure makes bead 1101b be pressed on the hot water storgae inwall, thus can prevent cold water in silica gel dish 11b descends the way, release the position below hydrothermal area 8 in mixed mutually.
When waiting to stop using hot water, hydrothermal area's hot water buoyancy rises silica gel dish 11b at silica gel dish 11b, the cold water of the strength extruding silica gel dish 11b upper interior of this rising.Because the extruded cold water pressure on inwall acts on the strength of bead outer surface acts on the bead inner surface greater than cold water pressure together with the restoring force of bead 1101b strength, so cold water of silica gel dish 11b upper interior, shown in Fig. 5 imaginary line, from between bead and inwall, release, flow into hydrothermal area's 8 interior supplemental heat water yields of below and be heated to room temperature for using by temperature detector 6 start electric heaters 5.
As mentioned above, utilize Expansion container of the present invention, silicon chamber bag, change in location or size variation that motor and silica gel dish are produced, make enclosure space reduce volume, and the cold water of temporarily storing can be squeezed into during not using hot water in the hydrothermal area again, thereby avoid using and the hot water or cold water is taken place during the hot water mix mutually constantly and cause the disappearance that water temperature is fallen suddenly.This water supply system can be widely used in the hot water apparatus of various uses, has the value on the industry deeply.
Claims (10)
1, a kind of not mixed mutually with hot water hot water apparatus water supply system of cold water injection that adds automatically is characterized in that: the single-channel type hot water reservoir apparatus of a sealing, and portion is equipped with heater within it; One stores the obturator of cold water temporarily, it is on the top of hot water reservoir apparatus inside, with in the hot water storage tank do not mix with this temporary transient cold water that injects via pipeline of storing at once, in stopping to inject cold water or after being heated to design temperature, via making obturator change the position or changing the device that size is shunk, make the temporary cold water of storage, can put into single-channel type hot water reservoir apparatus via another tubes rows and be heated to constant temperature for use.
2. not mixed mutually with the hot water hot water apparatus water supply system of cold water injection that adds automatically according to claim 1 is characterized in that obturator is an Expansion container, be by rubber, latex make and have the bottom flexible snake belly tube.
3. the not mixed mutually hot water apparatus water supply system of cold water injection that adds automatically according to claim 2 with hot water, the constriction device that it is characterized in that acting on the cold water Expansion container is for making its body in the container as the snake abdomen, it is the close container of envelope, connects cold water filling line and cooled water discharge pipeline on the top.
4, automatically the not mixed mutually hot water apparatus water supply system of cold water injection that adds according to claim 3 with hot water, it is characterized in that on cold water injection enters the cold water pipeline of Expansion container, installing magnetic reed switch, self extending container discharging cold water is gone into the control circuit that electric heater and temperature detector and power supply unit constituted that another pipeline in the reservoir apparatus is installed magnetic valve and is installed in hot water storage tank bottom, at hot water when the hot water storage tank gives off, the cold water flowing pressure was connected magnetic reed switch when cold water flowed into the space of filling up the hot water loss in the Expansion container, and start closed electromagnetic valve cold water self extending container flows into the hot water reservoir apparatus synchronously, and cold water is not mixed mutually with hot water; When stopping using hot water, cold water stops water filling and magnetic reed switch becomes to open circuit, and makes moving electromagnetic valve to open, so that the cold water that before had been stored in the Expansion container begins to flow in the hot water reservoir apparatus, this moment, the temperature difference made temperature detector remake electro kinetic potential device heat hot pool.
5, not mixed mutually with the hot water hot water apparatus water supply system of cold water injection that adds automatically according to claim 4 is characterized in that in the bottom of the close Expansion container of envelope one magnetic valve by magnetic reed switch control open and close being installed directly.
6, according to claim 2 or the 3 described not mixed mutually hot water apparatus water supply systems of cold water injection that add automatically, it is characterized in that one floating plate being installed in the bottom of Expansion container with hot water.
7, the not mixed mutually hot water apparatus water supply system of cold water injection that adds automatically according to claim 2 with hot water, the constriction device that it is characterized in that acting on the cold water Expansion container is for making its body in the container as the snake abdomen, it is the close device of envelope, a floating plate is installed in the bottom that connects cold water filling line and contraction container on the top, on this floating plate, fix an electric heater and one magnetic valve is installed, and one temperature detector is installed in the inside of shrinking container by floating plate; In hot water storage tank bottom another electric heater and temperature detector are installed in addition, at hot water when the hot water storage tank gives off, cold water flows in the Expansion container, and flow into the hot water reservoir apparatus, and by the cold water in the heater heating Expansion container by closed electromagnetic valve cold water self extending container on the synchronous start floating plate of the temperature detector in the Expansion container; When stopping using hot water, the magnetic valve in the Expansion container is opened, and the cold water of heating that before had been stored in the Expansion container begins to flow in the hot water reservoir apparatus.
8, the not mixed mutually hot water apparatus water supply system of cold water injection that adds automatically according to claim 1 with hot water, it is characterized in that the hot water storage tank includes inside and outside two walls and spaced apart to constitute a gap, an end by the constriction device that elastic restoring force acted on is fixed in the bottom in the gap; One silica gel bag turns over Zhe with its openend and fills in the gap, and links together with the other end of constriction device, makes silica gel can act on silica gel bag volume by the constriction device elastic restoring force after injecting cold water and diminishes.
9, the not mixed mutually hot water apparatus water supply system of cold water injection that adds automatically according to claim 2 with hot water, it is characterized in that external stability one small size motor at the hot water storage tank, can spur the bottom of Expansion container by small size motor via a nylon wire, Expansion container is shunk.
10, a kind of not mixed mutually with hot water hot water apparatus water supply system of cold water injection that adds automatically is characterized in that the single-channel type hot water reservoir apparatus that comprises that an envelope is close, and portion is equipped with heater within it; One has the silica gel dish of bead, be seated in the top of hot water reservoir apparatus inside, in order to the temporary cold water that injects via pipeline, and when stopping using hot water, act on the silica gel dish by the hot water in the reservoir apparatus, leak in the reservoir apparatus between the inwall of cold water via silica gel dish and hot water reservoir apparatus of extruding silica gel dish top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113304 CN1243933A (en) | 1998-08-04 | 1998-08-04 | Water supply system for water heater to automatically supply cold water without mixing with hot water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113304 CN1243933A (en) | 1998-08-04 | 1998-08-04 | Water supply system for water heater to automatically supply cold water without mixing with hot water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1243933A true CN1243933A (en) | 2000-02-09 |
Family
ID=5223051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98113304 Pending CN1243933A (en) | 1998-08-04 | 1998-08-04 | Water supply system for water heater to automatically supply cold water without mixing with hot water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1243933A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047761A (en) * | 2012-12-29 | 2013-04-17 | 李晗 | Inner container of water heater |
| CN103040365A (en) * | 2012-12-29 | 2013-04-17 | 李晗 | Liner of water dispenser |
| CN101743447B (en) * | 2007-07-06 | 2013-11-27 | 彭杜林2贸易（控股）有限公司 | System for and method of heating water |
-
1998
- 1998-08-04 CN CN 98113304 patent/CN1243933A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743447B (en) * | 2007-07-06 | 2013-11-27 | 彭杜林2贸易（控股）有限公司 | System for and method of heating water |
| CN103047761A (en) * | 2012-12-29 | 2013-04-17 | 李晗 | Inner container of water heater |
| CN103040365A (en) * | 2012-12-29 | 2013-04-17 | 李晗 | Liner of water dispenser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5898818A (en) | Water feed system at constant temperature keeping the hot water from mixing with the cold water fed during use of the hot water in a single tank | |
| US5584316A (en) | Hydrothermal stabilizer and expansion tank system | |
| US4263498A (en) | Expansion chamber arrangement for water heating and dispensing device | |
| CN106052134B (en) | Water heater and pipeline cold water recovery system thereof | |
| US5944221A (en) | Instantaneous hot water delivery system with a tank | |
| US5299605A (en) | Vapour recovery system for a fuel filling installation | |
| US5460290A (en) | Water heater foam stop apparatus | |
| US20120183281A1 (en) | Washer fluid warming device | |
| CN1243933A (en) | Water supply system for water heater to automatically supply cold water without mixing with hot water | |
| CN110906029B (en) | Reversing valve for water heater, water mixing device and water heater | |
| CN110906556B (en) | Water mixing device for water heater, water heater and water mixing method of water heater | |
| AU711576B2 (en) | Heat accumulator for a vehicle | |
| US3617700A (en) | Immersion heater | |
| CN208349420U (en) | The water charging system of moisturizing degasser | |
| CN209131164U (en) | Water admixing device and water heater for water heater | |
| EP1684019A1 (en) | Fluid-containment vessel | |
| US3031860A (en) | Liquid cooling system | |
| EP2452132A2 (en) | Device comprising a boiler for containing and heating a liquid and a system for containing the liquid at a lower temperature | |
| CN2329903Y (en) | Constant temp water storage type water heater | |
| CN214406475U (en) | Live water heater with electricity-proof wall | |
| EP0260989B1 (en) | Domestic hot water cylinder | |
| CN110906555B (en) | Water mixing device for water heater and water heater | |
| CN220793429U (en) | Electric water heater with turbulent flow structure | |
| CN209131163U (en) | Stopper, water admixing device and water heater for water heater | |
| CN217357557U (en) | Vertical double-layer heating type electric water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1062195 Country of ref document: HK |