Heat exchange type electric water heater assembly and heat exchange type electric water heater

Abstract

The utility model relates to the technical field of electric water heaters, and provides a heat exchange type electric water heater assembly and a heat exchange type electric water heater, and the heat exchange type electric water heater assembly comprises a pressure-bearing type water tank, a heat exchange pipe, a heat storage heater and an instant heater. Wherein a heat exchange medium is arranged in the pressure-bearing water tank; the heat exchange pipe is arranged in the containing cavity and makes contact with the heat exchange medium. The heat storage heater extends into the containing cavity to make contact with the heat exchange medium. According to the heat exchange type electric water heater, the heat exchange pipe is arranged in the containing cavity of the pressure-bearing type water tank and makes contact with the heat exchange medium, so that tap water can flow into the heat exchange pipe from the water inlet end and then flow out from the water outlet end, the tap water is heated to form running water, and sediment deposition, magnesium rod residues, water scale deposition and bacterium breeding can be avoided; the assembly is further provided with the instant heater, the tap water is subjected to heat exchange and heating through the heat exchange pipe, the instant heater heats the tap water flowing out of the water outlet end, the power can be smaller, and the problem that a household line cannot meet the power requirement can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water heaters, in particular to a heat exchange type electric water heater component and a heat exchange type electric water heater. Background Art

[0002] At present, the electric water heaters on the market mainly include storage type, instant type and storage and instant heating dual mode.

[0003] Storage-type electric water heaters heat tap water in advance and store it in a water tank for insulation, so that it can be used directly when needed; whereas instant electric water heaters heat tap water directly for use.

[0004] However, in the relevant electric water heater technology, the bathing water heated by the storage type electric water heater is usually stagnant water, which is easy to deposit mud, magnesium rod residue and form scale and other dirt problems, and is also easy to breed bacteria; while the instant electric water heater heats the tap water directly at one time, which requires a larger heating power. There is a problem that the household line cannot meet its power requirements, and the amount of hot water after heating is also easily insufficient. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the utility model provides a heat exchange electric water heater assembly to solve at least one of the above-mentioned technical defects in the prior art, so that the electric water heater assembly can avoid the deposition of mud, magnesium rod residue, and scale and the breeding of bacteria, so that the heated water is in a fresh state, which is beneficial to human health; at the same time, it can avoid the problem that the household line cannot meet its power requirements, and increase the amount of hot water after heating.

[0006] A second aspect of the utility model provides a heat exchange electric water heater.

[0007] In order to achieve the purpose of the utility model, the utility model provides a heat exchange electric water heater assembly, including:

[0008] The pressure-bearing water tank is provided with a receiving chamber suitable for receiving a heat exchange medium;

[0009] A heat exchange tube, arranged in the accommodating cavity and in contact with the heat exchange medium, having a water inlet end and a water outlet end;

[0010] A thermal storage heater extends into the accommodating cavity and contacts the heat exchange medium;

[0011] The instant heater is arranged at the water outlet.

[0012] Preferably, the thermal storage heater is located at the bottom of the accommodating cavity.

[0013] Preferably, the pressurized water tank is provided with a water supply port and a water discharge port.

[0014] Preferably, it further includes a plug and a safety valve.

[0015] The plug is matched with the drain port, and the safety valve is arranged at the water replenishing port.

[0016] Preferably, it further includes a thermostatic valve, and the thermostatic valve is arranged at the outlet of the instant water heater.

[0017] Preferably, it further includes a first branch pipe and a second branch pipe.

[0018] The output end of the first branch pipe is communicated with the thermostatic valve, and the input end of the first branch pipe is communicated with tap water.

[0019] The output end of the second branch pipe is communicated with the water inlet end, and the input end of the second branch pipe is communicated with tap water.

[0020] Preferably, it further includes a third branch pipe.

[0021] The input end of the third branch pipe is communicated with tap water, and the output end of the third branch pipe is communicated with the water replenishing port.

[0022] Preferably, the heat exchange tube is spiral.

[0023] The outer walls of the water inlet end and the water outlet end are both sealed with the outer wall of the pressure-bearing water tank.

[0024] The present utility model further provides a heat exchange type electric water heater, which includes the above-mentioned heat exchange type electric water heater assembly and a control member.

[0025] The control member is electrically connected to both the heat storage heater and the instant water heater to control the states of the heat storage heater and the instant water heater.

[0026] Preferably, it further includes a conduit. The first end of the conduit extends into the accommodation cavity from the bottom of the pressure-bearing water tank, and there is a gap between the first end of the conduit and the top of the pressure-bearing water tank.

[0027] The second end of the conduit is communicated with the drain port of the pressure-bearing water tank.

[0028] The beneficial effects of the present utility model are as follows: For the heat exchange type electric water heater assembly provided by the present utility model, by arranging a heat exchange medium in the pressure-bearing water tank and arranging the heat exchange pipe in the accommodation cavity of the pressure-bearing water tank to contact with the heat exchange medium, tap water can flow into the heat exchange pipe from the water inlet end and then flow out from the water outlet end, realizing the heating of tap water. Since the tap water circulates in the heat exchange pipe to form flowing water, sediment, magnesium rod residues, scale deposition and bacterial growth can be avoided, making the heated tap water in a fresh state, which is beneficial to human health; the assembly also has an instant heater arranged at the water outlet end of the heat exchange pipe. Since the tap water flowing out from the water outlet end has been heated and temperature-raised through heat exchange in the heat exchange pipe, under the same amount of water, the instant heater heats the tap water flowing out from the water outlet end, and the power will be smaller, which can avoid the problem that the household circuit cannot meet its power requirement and increase the amount of hot water after heating.

[0029] The heat exchange type electric water heater provided by the present utility model, since it includes the above-mentioned heat exchange type electric water heater assembly, necessarily has all the advantages of this assembly. That is, this heat exchange type electric water heater can also form flowing water, avoid sediment, magnesium rod residues, scale deposition and bacterial growth, make the heated tap water in a fresh state, which is beneficial to human health; under the same amount of water, the instant heater heats the tap water flowing out from the water outlet end, and the power will be smaller, which can avoid the problem that the household circuit cannot meet its power requirement and increase the amount of hot water after heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other objects, features and advantages of the present utility model will become clearer through the preferred embodiments of the present utility model shown in the drawings. The same reference numerals in all the drawings indicate the same parts, and the drawings are not deliberately drawn to scale in actual size, etc., with the focus on showing the gist of the present application.

[0031] Figure 1 It is a schematic structural diagram of the heat exchange type electric water heater assembly provided by the embodiment of the present utility model.

[0032] In the figure:

[0033] 100, pressure-bearing water tank; 110, accommodation cavity; 120, water replenishing port; 130, drain port; 140, plug; 150, safety valve;

[0034] 200, heat exchange pipe; 210, water inlet end; 220, water outlet end;

[0035] 300, heat storage heater;

[0036] 400, instant heater; 410, constant temperature valve;

[0037] 500, first branch pipe; 510, second branch pipe; 520, third branch pipe;

[0038] 600. Conduit. Detailed implementation mode

[0039] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings.

[0040] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated with it, or there may be an intermediate element at the same time. The terms "installation", "one end", "the other end" and similar expressions used in this article are only for the purpose of illustration.

[0041] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by those skilled in the technical field to which this article belongs. The terms used in the description in this article are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.

[0042] The following is combined with Figure 1 , the embodiments of the present utility model will be described. It should be understood that the following description is only a schematic implementation mode of the present utility model and does not constitute any limitation to the present utility model.

[0043] Referring to Figure 1 , an integrated heat exchange electric water heater assembly provided by an embodiment of the present utility model includes a pressure-bearing water tank 100, a heat exchange tube 200, a heat storage heater 300 and an instant heater 400. Among them, the pressure-bearing water tank 100 is provided with a receiving cavity 110 that can accommodate a heat exchange medium, and the heat exchange medium can be water, which is filled into the receiving cavity 110. Under the action of the tap water pressure, the pressure-bearing water tank 100 will always be in a full water state, and no other liquid filling devices need to be added. Moreover, when the liquid in the water tank is insufficient, problems such as less heat exchange and dry burning of the heat storage heater 300 can be avoided.

[0044] The heat exchange tube 200 is arranged in the receiving cavity 110 and is in contact with the heat exchange medium to achieve heat exchange; the heat exchange tube 200 has a water inlet end 210 and a water outlet end 220. Tap water can flow into the heat exchange tube 200 from the water inlet end 210 and then flow out from the water outlet end 220. Since the heat exchange tube 200 is in contact with the heat exchange medium, the heat of the heat exchange medium can be transferred to the tap water flowing through the heat exchange tube 200 to realize the heating of the tap water.

[0045] The heat storage heater 300 extends into the receiving cavity 110 and is in contact with the heat exchange medium, and can heat the heat exchange medium in the pressure-bearing water tank 100.

[0046] The instant - heating heater 400 is arranged at the water outlet end 220 and can heat the water flowing out from the water outlet end 220 to further increase the water temperature.

[0047] It can be understood that for the heat - exchange type electric water heater assembly provided by the embodiments of the present utility model, by arranging a heat - exchange medium in the pressure - bearing water tank 100 and arranging the heat - exchange tube 200 in the accommodation cavity 110 of the pressure - bearing water tank 100 to contact the heat - exchange medium, tap water can flow into the heat - exchange tube 200 from the water inlet end 210 and then flow out from the water outlet end 220, realizing the heating of tap water. Since the tap water circulates in the heat - exchange tube 200 to form flowing water, sediment, magnesium rod residues, scale deposition and bacteria growth can be avoided, making the heated tap water in a fresh state, which is beneficial to human health. The assembly also has an instant - heating heater 400 arranged at the water outlet end 220 of the heat - exchange tube 200. Since the tap water flowing out from the water outlet end 220 has been heated and temperature - raised through heat - exchange in the heat - exchange tube 200, with the same amount of water, when the instant - heating heater 400 heats the tap water flowing out from the water outlet end 220, the power will be smaller, which can avoid the problem that the household circuit cannot meet its power requirement and increase the amount of hot water after heating.

[0048] Furthermore, in order to make the heat - exchange medium in the pressure - bearing water tank 100 be heated more evenly, in some embodiments of the present utility model, the heat - storage heater 300 is arranged at the bottom of the accommodation cavity 110.

[0049] The pressure - bearing water tank 100 is also provided with a water - replenishing port 120 and a drainage port 130. Both the water - replenishing port 120 and the drainage port 130 communicate with the accommodation cavity 110. The water - replenishing port 120 is used to replenish the heat - exchange medium into the pressure - bearing water tank 100, for example: water; the drainage port 130 is used to discharge the heat - exchange medium in the pressure - bearing water tank 100 and exhaust air during the first liquid filling after the water tank is emptied, facilitating the replenishment of the heat - exchange medium.

[0050] Specifically, in some embodiments of the present utility model, the assembly further includes a plug 140 and a safety valve 150.

[0051] The plug 140 is matched with the drainage port 130, and the safety valve 150 is arranged at the water - replenishing port 120. The safety valve 150 can prevent over - pressure of the pressure - bearing water tank 100 and the heat - exchange tube 200 and the reverse flow of the internal liquid.

[0052] When replenishing the heat - exchange medium for the first time, the plug 140 can be removed to open the drainage port 130. Tap water can enter the pressure - bearing water tank 100 through the safety valve 150, and the gas inside the water tank can be discharged through the drainage port 130. When there is liquid flowing out from the drainage port 130, the drainage port 130 can be closed with the plug 140, making the operation of replenishing the heat - exchange medium simpler.

[0053] In some embodiments of the present utility model, the assembly further includes a thermostatic valve 410, which is disposed at the outlet of the instant water heater 400. The thermostatic valve 410 can adjust the temperature of the water flowing out of the instant water heater 400 to meet the user's requirements for different temperatures.

[0054] Of course, in order to facilitate the user to adjust the water temperature and simplify the operation of the electric water heater assembly, in some embodiments of the present utility model, the assembly further includes a first branch pipe 500 and a second branch pipe 510.

[0055] The output end of the first branch pipe 500 is communicated with the thermostatic valve 410, and the input end of the first branch pipe 500 is communicated with the tap water.

[0056] The output end of the second branch pipe 510 is communicated with the water inlet end 210, and the input end of the second branch pipe 510 is communicated with the tap water.

[0057] When the user needs to use hot water, the tap water can enter the water inlet end 210 of the heat exchange tube 200 through the second branch pipe 510. Since there is a temperature difference between the tap water in the heat exchange tube 200 and the heat exchange medium in the pressure-bearing water tank 100, heat exchange is carried out. After the water temperature in the heat exchange tube 200 rises, it flows out through the water outlet end 220 and enters the instant water heater 400 for secondary heating, and then enters the thermostatic valve 410. The first end of the thermostatic valve 410 is connected to the outlet of the instant water heater 400, and the second end of the thermostatic valve 410 is connected to the first branch pipe 500 of the tap water. The thermostatic valve 410 can perform cold and hot water mixing adjustment according to the user's required temperature, and then is delivered to the water using end through the hot water outlet.

[0058] In some embodiments of the present utility model, the assembly further includes a third branch pipe 520. The input end of the third branch pipe 520 is communicated with the tap water, and the output end of the third branch pipe 520 is communicated with the water replenishing port 120. So that the pressure-bearing water tank 100 can always be in a full water state to avoid dry burning.

[0059] In some embodiments of the present utility model, in order to improve the heat exchange efficiency, the heat exchange tube 200 is spiral. The outer walls of the water inlet end 210 and the water outlet end 220 are both sealed with the outer wall of the pressure-bearing water tank 100.

[0060] In order to improve the accuracy of temperature adjustment, a heat preservation layer and a shell are provided outside the pressure-bearing water tank 100, and a water temperature probe is also provided inside the pressure-bearing water tank 100.

[0061] The embodiments of the present utility model further provide a heat exchange type electric water heater, which includes the above-mentioned heat exchange type electric water heater assembly and a control member (not shown in the drawings).

[0062] The control component is electrically connected to both the heat storage heater 300 and the instant heater 400 to control the states of the heat storage heater 300 and the instant heater 400, so as to improve the intelligence of the electric water heater. For example: after the heat exchange medium reaches the set temperature, the heat storage heater 300 stops working; when the temperature of the heat exchange medium is lower than the set temperature - the dead band temperature (this temperature can be set), the heat storage heater 300 starts to work; there is a water flow detection on the water inlet pipeline, and the instant heater 400 works when the flow rate is greater than a predetermined value and shuts down when it is lower than the predetermined value.

[0063] In some embodiments of the present utility model, in order to make the heat exchange medium of the pressure-bearing water tank 100 fill the entire accommodation cavity 110 and ensure the normal heat exchange of the water tank, the heat exchange type electric water heater further includes a conduit 600. The first end of the conduit 600 extends into the accommodation cavity 110 from the bottom of the pressure-bearing water tank 100. There is a gap between the first end of the conduit 600 and the top of the pressure-bearing water tank 100, and the second end of the conduit 600 is communicated with the drain port 130 of the pressure-bearing water tank 100.

[0064] It can be understood that the heat exchange type electric water heater provided by the embodiments of the present utility model, due to including the above-mentioned heat exchange type electric water heater components, necessarily has all the advantages of these components. That is, the heat exchange type electric water heater can also form flowing water, avoiding the deposition of sediment, magnesium rod residues, scale, and the breeding of bacteria, making the heated tap water in a fresh state, which is beneficial to human health; under the same amount of water, the instant heater 400 heats the tap water flowing out from the water outlet end 220, and the power will be smaller, which can avoid the problem that the household circuit cannot meet its power requirements and increase the amount of hot water after heating.

[0065] In this specification, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0066] In the description of this specification, the descriptions referring to terms such as "preferred embodiment", "another embodiment", "some embodiments", "other embodiments" or "specific examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0067] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application.

Claims

1. A heat exchange type electric water heater assembly, characterized in that, Comprising: A pressure-bearing water tank having a receiving cavity adapted to receive a heat exchange medium; A heat exchange tube disposed in the receiving cavity in contact with the heat exchange medium, having a water inlet end and a water outlet end; A heat storage heater extending into the receiving cavity in contact with the heat exchange medium; An instant heater disposed at the water outlet end.

2. The heat exchange type electric water heater assembly according to claim 1, characterized in that, The heat storage heater is located at the bottom of the receiving cavity.

3. The heat exchange type electric water heater assembly according to claim 1, characterized in that, The pressure-bearing water tank is provided with a water replenishing port and a drain port.

4. The heat exchange type electric water heater assembly according to claim 3, characterized in that, It further includes a plug and a safety valve, The plug is matched with the drain port, and the safety valve is disposed at the water replenishing port.

5. The heat exchange type electric water heater assembly according to claim 1, wherein It further includes a thermostatic valve disposed at the outlet of the instant heater.

6. The heat exchange type electric water heater assembly according to claim 5, wherein, It further includes a first branch pipe and a second branch pipe, The output end of the first branch pipe is communicated with the thermostatic valve, and the input end of the first branch pipe is communicated with tap water, The output end of the second branch pipe is communicated with the water inlet end, and the input end of the second branch pipe is communicated with tap water.

7. The heat exchange type electric water heater assembly according to claim 3, wherein, It further includes a third branch pipe, The input end of the third branch pipe is communicated with tap water, and the output end of the third branch pipe is communicated with the water replenishing port.

8. The heat exchange type electric water heater assembly according to claim 1, characterized in that, The heat exchange tube is spiral, The outer walls of both the water inlet end and the water outlet end are sealed with the outer wall of the pressure-bearing water tank.

9. A heat exchange type electric water heater, characterized in that, Comprising the heat exchange type electric water heater assembly according to any one of claims 1 to 8 and a control member, The control member is electrically connected to both the heat storage heater and the instant heater to control the states of the heat storage heater and the instant heater.

10. The heat exchange type electric water heater according to claim 9, wherein, It further includes a conduit, the first end of the conduit extends into the receiving cavity from the bottom of the pressure-bearing water tank, and there is a gap between the first end of the conduit and the top of the pressure-bearing water tank, The second end of the conduit is communicated with the drain port of the pressure-bearing water tank.

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