CN217952692U

CN217952692U - Temp. -changing electric water-boiling device

Info

Publication number: CN217952692U
Application number: CN202221101104.8U
Authority: CN
Inventors: 康维; 王娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-12-02
Anticipated expiration: 2032-05-09

Abstract

The application discloses a variable-temperature electric water boiler, which is used for heating water provided by a water supply end and supplying water to a water using end and at least comprises a heating tank, a heat exchange mechanism and a temperature adjusting valve; the heating tank is provided with a water inlet, a water outlet and a liquid storage cavity; the other end of the first branch pipeline and the other end of the second branch pipeline are communicated with one end of a second main pipeline through the temperature regulating valve, and the other end of the second main pipeline is communicated with the water using end; the heat exchange mechanism is provided with an inner flow passage and an outer flow passage, the inner flow passage is connected in series on the second branch pipeline, the outer flow passage is connected in series on the liquid inlet pipeline, so that liquid in the second branch pipeline exchanges heat with liquid in the liquid inlet pipeline in the heat exchange mechanism, and the liquid in the second branch pipeline is not mixed with the liquid in the liquid inlet pipeline. This application can be adjusted the liquid alternating temperature of water end as required, and convenient to use just avoids drinking the safety problem.

Description

Temp. -changing electric water-boiling device

Technical Field

The application relates to the field of water boilers, in particular to a variable-temperature electric water boiler.

Background

The water boiler is also called a boiling water boiler, and is a drinking water device which is designed and developed for meeting the requirement of more people on drinking boiled water and can produce boiled water by converting electric energy into heat energy.

The prior patent also discloses a water boiler, for example, a siphon heating tank with the application number of 201410584301.3 drives a boiled water, cold boiled water and hot water regulator, which can provide two water temperatures of boiled water, cold boiled water and hot water, but the temperatures of the three kinds of water cannot be regulated at any time according to the use requirement, and the use is inconvenient. Meanwhile, the hot water is prepared by directly mixing and blending cold water and boiled water heated by a heating tank, so that the cold water is not heated and sterilized, the mixed hot water cannot be directly drunk, and the problem of drinking safety exists.

Disclosure of Invention

An object of this application is to provide a alternating temperature electric water boiler, can adjust the liquid alternating temperature of water end according to the demand, convenient to use, and avoid drinking the safety problem.

In order to achieve the above object, the present application provides a variable temperature electric water boiler for heating water provided by a water supply end and supplying water to a water use end, which at least comprises a heating tank, a heat exchange mechanism and a temperature regulating valve; the heating tank is provided with a water inlet, a water outlet and a liquid storage cavity, wherein the water inlet and the water outlet are communicated with the liquid storage cavity; the water inlet is communicated with the water supply end through a liquid inlet pipeline, and the water outlet is communicated with one end of the first branch pipeline and one end of the second branch pipeline through a first main pipeline; the other end of the first branch pipeline and the other end of the second branch pipeline are communicated with one end of a second main pipeline through the temperature regulating valve, and the other end of the second main pipeline is communicated with the water using end; the heat exchange mechanism is provided with an inner flow passage and an outer flow passage, the inner flow passage is connected in series on the second branch pipeline, the outer flow passage is connected in series on the liquid inlet pipeline, so that liquid in the second branch pipeline exchanges heat with liquid in the liquid inlet pipeline in the heat exchange mechanism, and the liquid in the second branch pipeline is not mixed with the liquid in the liquid inlet pipeline.

Therefore, according to the technical scheme provided by the application, the water outlet of the heating tank is divided by arranging the first branch pipeline and the second branch pipeline at the water outlet, so that part of hot water is subjected to heat exchange and cooling through the liquid in the heat exchange mechanism and the liquid inlet pipeline, and then the cooled hot water and the original hot water are mixed through the temperature regulating valve and then are guided to the water using end, so that the hot water discharged from the water outlet is subjected to temperature change regulation, and the use is convenient. Meanwhile, as the hot water of the second branch pipeline exchanges heat with the liquid in the liquid inlet pipeline through the heat exchange mechanism and is cooled, the hot water does not need to be mixed and blended with the liquid in the liquid inlet pipeline, the situation that the raw water is guided to the water using end without being heated is avoided, and the safety problem of water using at the water using end is guaranteed.

Meanwhile, the liquid in the liquid inlet pipeline needs to exchange heat with the hot water in the second branch pipeline at the heat exchange mechanism, namely, the liquid in the liquid inlet pipeline flows into the heating tank after being preheated, so that the temperature of the liquid entering the heating tank is improved to a certain extent, the electric quantity consumption of the heating tank is reduced, and the heating efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a variable temperature electric water boiler according to an embodiment provided in the present application;

FIG. 2 is a schematic diagram of electrical connections of an electric water boiler with variable temperature according to an embodiment of the present disclosure;

in the figure: 1. a water supply end; 2. carrying out water end treatment; 3. a heating tank; 31. a water inlet; 32. a water outlet; 33. a liquid storage cavity; 331. heating the cavity; 332. a convection cavity; 34. a heater; 35. a preheating pipe; 351. a first pipe portion; 352. a second pipe portion; 36. a sleeve; 37. a blowoff valve; 38. a water level sensor; 39. a temperature probe; 4. a heat exchange mechanism; 5. a temperature regulating valve; 61. a first main pipeline; 62. a second main pipeline; 63. a first branch pipe; 64. a second branch pipe; 71. a filtration system; 72. an electromagnetic valve; 73. a water flow sensor; 74. a pressure relief valve; 8. a main control panel.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings. Terms such as "upper," "above," "lower," "below," "first end," "second end," "one end," "another end," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted", "disposed", "provided", "connected", "slidably connected", "fixed" and "sleeved" are to be understood in a broad sense. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

For the water boiler disclosed in the prior patent, a siphon heating tank with the application number of 201410584301.3 drives a boiled water, cold boiled water and hot water regulator, which can provide two water temperatures of boiled water, cold boiled water and hot water, but the temperatures of the three kinds of water cannot be regulated at any time according to the use requirements, and the use is inconvenient. Meanwhile, the hot water is prepared by directly mixing and blending cold water and boiled water heated by a heating tank, so that the cold water is not heated and disinfected, the mixed hot water cannot be directly drunk, and the problem of drinking safety exists.

And after the liquid in the heating tank is heated, the temperature rises to a certain height to cause vaporization of the liquid, and gurgling sounds can be generated in the vaporization process, so that noise occurs in the use process of the whole equipment, and the use experience of a user is influenced.

Based on the above-mentioned produced problem and bad experience, consequently an urgent need for a variable temperature electric water boiler can adjust the liquid variable temperature of water end according to the demand, and convenient to use just avoids drinking safety and noise problem, improves user and uses experience.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the embodiments described in this application are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments in the present application, are within the scope of protection of the present application.

In an implementable embodiment, as shown in fig. 1, a temperature-variable electric boiler is used for heating water supplied from a water supply end 1 and supplying water to a water use end 2. The variable temperature electric boiler may comprise at least a heating tank 3, a heat exchange means 4 and a tempering valve 5. The heating tank 3 has a water inlet 31, a water outlet 32 and a liquid storage cavity 33, wherein the water inlet 31 and the water outlet 32 are communicated with the liquid storage cavity 33. The water inlet 31 is communicated with the water supply end 1 through a liquid inlet pipeline, so that the heating tank 3 is used for heating the liquid flowing from the water inlet 31 into the water supply end 1. The water outlet 32 communicates with one end of the first branch line 63 and one end of the second branch line 64 through the first main line 61. The other end of the first branch pipe 63 and the other end of the second branch pipe 64 are communicated with one end of a second main pipe 62 through a temperature adjusting valve 5, and the other end of the second main pipe 62 is communicated with a water using end 2. The heat exchange mechanism 4 has an inner flow passage and an outer flow passage, the inner flow passage is connected in series to the second branch pipe 64, and the outer flow passage is connected in series to the liquid inlet pipe, so that the liquid in the second branch pipe 64 exchanges heat with the liquid in the liquid inlet pipe in the heat exchange mechanism 4, and the liquid in the second branch pipe 64 is not mixed with the liquid in the liquid inlet pipe. Therefore, the hot water flowing out of the water blowing port 32 can partially directly flow into the temperature adjusting valve 5, the other part of the hot water can flow through the heat exchange mechanism 4 through the second branch pipeline 64 to exchange heat, then flows through the temperature adjusting valve 5, and finally the liquid in the first branch pipeline 63 and the liquid in the second branch pipeline 64 are adjusted and mixed through the temperature adjusting valve 5, so that the water temperature flowing into the water using end 2 is controlled.

Therefore, the hot water discharged from the water outlet 32 can be subjected to temperature change adjustment, and the use is convenient. Meanwhile, as the hot water in the second branch pipeline 64 exchanges heat with the liquid in the liquid inlet pipeline through the heat exchange mechanism 4 to reduce the temperature, the hot water does not need to be mixed and blended with the liquid in the liquid inlet pipeline, the situation that the raw water is guided to the water using end without being heated is avoided, and the safety problem of the water using end is ensured. Meanwhile, the liquid in the liquid inlet pipeline needs to exchange heat with the hot water in the second branch pipeline 64 at the heat exchange mechanism 4, that is, the liquid in the liquid inlet pipeline flows into the heating tank after being preheated, so that the temperature of the liquid entering the heating tank is increased to a certain extent, the electric quantity consumption of the heating tank is reduced, and the heating efficiency is improved.

In practical application, the water supply end 1 may be a tap water supply, or may be other water supplies, such as a mineral water barrel. The water using end 2 can correspond to the actual using situation, for example, can be a water dispenser or a tea tray and the like. The temperature adjusting valve 5 may be a three-way adjusting valve, so that the temperature adjusting valve 5 may have two water inlet ends and one water outlet end, the other end of the first branch pipe 63 and the other end of the second branch pipe 64 are respectively communicated with the two water inlet ends, and the water outlet end is communicated to the water using end 2, thereby adjusting the temperature of the hot water. The heat exchange mechanism 4 may be a plate heat exchanger, which is a high-efficiency heat exchanger formed by stacking a series of metal sheets with certain corrugated shapes, thin rectangular channels are formed between the various sheets, and the hot water in the second branch pipeline 64 and the cold water in the liquid inlet pipeline can exchange heat through the sheets, so that the liquids in the two pipelines are not mutually mixed.

Furthermore, a filtering system 71 and an electromagnetic valve 72 can be connected in series on the liquid inlet pipeline. The filtering system 71 and the electromagnetic valve 72 are located between the heat exchange mechanism 4 and the water supply end 1, so as to filter and control the opening and closing of the cold water flowing out from the water supply end 1, ensure the cleanness of the water flowing out from the water end 2, and reduce the damage rate of the heating tank 3 and the heat exchange mechanism 4 caused by water quality problems.

Further, a water flow sensor 73 and a pressure relief valve 74 are connected in series on the liquid inlet pipeline, and the water flow sensor 73 and the pressure relief valve 74 are positioned between the heat exchange mechanism 4 and the water inlet 31. The water flow sensor 73 is used to detect the flow rate of the inflow water, thereby preventing the heating tank 3 from being dry-burned. The pressure relief valve 74 is used for pressure protection of the pipeline to avoid the situation that the inlet pressure is too high and causes damage.

The variable temperature electric water heater can further comprise a main control board 8, wherein the main control board 8 is electrically connected with the heating tank 3, the temperature regulating valve 5, the electromagnetic valve 72 and the water flow sensor 73 respectively, so that the heating tank 3, the temperature regulating valve 5, the electromagnetic valve 72 and the water flow sensor 73 are controlled by the main control board 8 respectively.

Regarding the specific structure of the heating tank 3. In one achievable embodiment, the heating tank 3 is generally vertically disposed. The water inlet 31 is located at the bottom of the heating tank 3 and the water outlet 32 is located at the top of the heating tank 3. The liquid storage cavity 33 comprises a heating cavity 331 and a convection cavity 332, the upper end and the lower end of the heating cavity 331 are respectively communicated with the convection cavity 332, and a heater 34 is arranged in the heating cavity 331. Thus, when the liquid in the heating cavity 331 is heated, the temperature in the heating cavity 331 rises, and the liquid with high temperature flows upwards, so that an internal-external pressure difference and an upper-lower pressure difference are formed between the heating cavity 331 and the convection cavity 332, which also enables the liquid in the heating tank 3 to form a circular flow shown in fig. 1, that is, the liquid in the heating cavity 331 flows upwards, then enters the convection cavity 332 after reaching the top end, and then moves downwards to the bottom end, and then flows back into the heating cavity 331.

A preheating pipe 35 is arranged in the convection cavity 332, one end of the preheating pipe 35 is communicated with the water inlet 31, the other end of the preheating pipe 35 is positioned at the bottom of the heating cavity 331, and a part of the preheating pipe 35 is positioned at the top of the heating cavity 331. Therefore, the boiling liquid at the top end inside the heating tank 3 exchanges heat with the liquid in the partial preheating pipe 35 positioned at the top of the heating cavity 331, the temperature of the partial boiling liquid is reduced, the gasification degree of the boiling liquid can be reduced, and the noise generated by the heater due to the gasification of the liquid is eliminated. And because the cold water that gets into from water inlet 31 contacts with heater 34 after preheating to can reduce the temperature difference between the liquid of feed liquor and heater 34, and then reduce the noise in the twinkling of an eye that produces because of the higher temperature difference of the liquid of feed liquor and heating element. Meanwhile, when the heating tank 3 is heating, the liquid with high temperature upwells to form a high-temperature area with high top temperature and a low-temperature area with low bottom temperature in the convection cavity 331, and the cold water entering from the water inlet 31 can flow from the low-temperature area to the high-temperature area, so that the cold water is gradually preheated, the water temperature in the high-temperature area is prevented from rapidly dropping, the liquid circulation speed between the heating cavity 331 and the backflow cavity 332 is prevented from being influenced, and the whole heating efficiency of the heating tank 3 is prevented from being influenced. And the liquid after the aforesaid preheating, in second pipe portion 352 water conservancy diversion to heating cavity 331 again, raised the liquid temperature that gets into heating cavity 331 from water inlet 31 to reduce the temperature difference that liquid got into and carries out the heating in heating cavity 331, and then under the condition of the equal volume liquid of heating, can reduce the power consumption, improve the efficiency of heater.

It should be explained that although the liquid in the preheating pipe 35 is preheated twice by the heat exchange mechanism 4 and the convection cavity 332, because of the flow rate and the heat exchange efficiency, the temperature difference exists between the liquid in the part of the preheating pipe 35 located at the top of the heating cavity 331 and the internal top boiling liquid of the heating tank 3, so that the internal top boiling liquid of the heating tank 3 exchanges heat with the liquid in the part of the preheating pipe 35 located at the top of the heating cavity 331, and the temperature of the part of the boiling liquid is reduced, so that the degree of vaporization of the boiling liquid can be reduced, and the noise generated by the heater due to the vaporization of the liquid can be eliminated.

In practical applications, the heater 34 is an electric heater, but is not limited to this. The heating unit 5 can be a plurality of pairs of inverted U-shaped metal electric heating tubes vertically arranged on the inner wall of the bottom surface of the heating tank 3, or a high-strength, water-electricity shielding, seamless automatic silver brazing and 12bar pressure-resistant Engelai 840 stainless steel electric heating tube vertically arranged on the inner wall of the bottom surface of the heating tank 3, or a large-diameter combined nickel-chromium wire heating tube vertically arranged on the inner wall of the bottom surface of the tank body, or a plurality of high-insulation, high-heat-conduction and high-stability non-metal electric heating tubes vertically arranged on the inner wall of the bottom surface of the heating tank 3, or an electric heating disc arranged in the center of the inner wall of the bottom surface of the heating tank 3; or an electromagnetic heating plate arranged in the center of the inner wall of the bottom surface of the heating tank 3.

With respect to the specific formation of the heating cavity 331 and the convection cavity 332, in one implementation, a sleeve 36 is disposed within the heating tank 3, the sleeve 36 dividing the reservoir cavity 33 into the heating cavity 331 and the convection cavity 332.

The preheating pipe 35 includes a first pipe portion 351 and a second pipe portion 352 communicating with each other. One end of the first pipe portion 351 communicates with the water inlet 31, and the other end of the first pipe portion 351 extends upward and communicates with one end of the second pipe portion 352. The other end of the second pipe portion 352 is located at the bottom of the sleeve 36, and the second pipe portion 352 is spirally disposed around the sleeve 36, and the other end of the second pipe portion 352 may be opened toward the sleeve 34.

The first tube portion 351 and the second tube portion 352 may be detachably connected or integrally formed.

Further, the bottom of the heating tank 3 is provided with a drain valve 37 for draining the liquid inside the heating tank 3 and for cleaning the inside of the heating tank 3 on a daily basis. The top of the heating tank 3 is provided with a water level sensor 38 to detect the liquid level in the reservoir chamber 33. The heating tank 3 is also provided with a temperature probe 39. The temperature probes 39 are specifically two, one 39 being located at the top of the heating tank 3 and the other 39 being located at the middle/bottom of the heating tank 3.

Furthermore, a preheating pipe is arranged in the heating tank, one end of the preheating pipe is communicated with the water inlet, the other end of the preheating pipe is positioned at the bottom of the heating cavity, and part of the preheating pipe is positioned at the top of the heating cavity. So, the inside top boiling liquid of heating tank can carry out the heat transfer with the liquid that is located the partial preheating pipe at heating cavity top, subducts the temperature of partial boiling liquid to can reduce the gasified degree of boiling liquid, and then eliminate the heater and produce the noise because of liquid gasification. And because the cold water that gets into from the water inlet contacts with the heater after preheating to reduce the temperature difference between the liquid of feed liquor and the heating element, and then reduce the higher transient noise that produces of temperature difference because of the liquid of feed liquor and heating element.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A variable temperature electric water boiler is used for heating water provided by a water supply end (1) and supplying water to a water use end (2), and is characterized by at least comprising a heating tank (3), a heat exchange mechanism (4) and a temperature regulating valve (5);

the heating tank (3) is provided with a water inlet (31), a water outlet (32) and a liquid storage cavity (33), wherein the water inlet (31) and the water outlet (32) are communicated with the liquid storage cavity (33);

the water inlet (31) is communicated with the water supply end (1) through a liquid inlet pipeline, and the water outlet (32) is communicated with one end of a first branch pipeline (63) and one end of a second branch pipeline (64) through a first main pipeline (61); the other end of the first branch pipeline (63) and the other end of the second branch pipeline (64) are communicated with one end of a second main pipeline (62) through the temperature adjusting valve (5), and the other end of the second main pipeline (62) is communicated with the water using end (2);

the heat exchange mechanism (4) is provided with an inner flow passage and an outer flow passage, the inner flow passage is connected in series on the second branch pipeline (64), the outer flow passage is connected in series on the liquid inlet pipeline, so that liquid in the second branch pipeline (64) exchanges heat with liquid in the liquid inlet pipeline in the heat exchange mechanism (4), and the liquid in the second branch pipeline (64) is not mixed with the liquid in the liquid inlet pipeline.

2. The temperature-changing electric water boiler according to claim 1, characterized in that a filtering system (71) and an electromagnetic valve (72) are connected in series on the liquid inlet pipeline;

the filtering system (71) and the solenoid valve (72) are located between the heat exchange means (4) and the water supply end (1).

3. The variable temperature electric water boiler according to claim 2, characterized in that a water flow sensor (73) and a pressure relief valve (74) are connected in series on the liquid inlet pipeline;

the water flow sensor (73) and the pressure relief valve (74) are located between the heat exchange mechanism (4) and the water inlet (31).

4. The temperature-changing electric water boiler according to claim 3, further comprising a main control board (8), wherein the main control board (8) is electrically connected to the heating tank (3), the temperature-adjusting valve (5), the electromagnetic valve (72) and the water flow sensor (73), respectively.

5. The temperature-changing electric water boiler according to claim 4, characterized in that the temperature-adjusting valve (5) is a three-way adjusting valve; the heat exchange mechanism (4) adopts a plate heat exchanger.

6. The temperature-changing electric boiler according to any one of claims 1 to 5, characterized in that the water inlet (31) is located at the bottom of the heating tank (3) and the water outlet (32) is located at the top of the heating tank (3);

the liquid storage cavity (33) comprises a heating cavity (331) and a convection cavity (332), the upper end and the lower end of the heating cavity (331) are respectively communicated with the convection cavity (332), and a heater (34) is arranged in the heating cavity (331);

a preheating pipe (35) is arranged in the convection cavity (332), one end of the preheating pipe (35) is communicated with the water inlet (31), the other end of the preheating pipe (35) is positioned at the bottom of the heating cavity (331), and part of the preheating pipe (35) is positioned at the top of the heating cavity (331).

7. The temperature-changing electric water boiler according to claim 6, characterized in that a sleeve (36) is arranged in the heating tank (3), and the sleeve (36) divides the liquid storage cavity (33) into the heating cavity (331) and the convection cavity (332).

8. The temperature-changing electric boiler according to claim 7, characterized in that the preheating pipe (35) comprises a first pipe portion (351) and a second pipe portion (352) which are communicated with each other;

one end of the first pipe part (351) is communicated with the water inlet (31), the other end of the first pipe part (351) extends upwards and is communicated with one end of the second pipe part (352);

the other end of the second pipe portion (352) is located at the bottom of the sleeve (36), and the second pipe portion (352) is spirally disposed around the sleeve (36).

9. The temperature-changing electric water boiler according to claim 8, characterized in that the bottom of the heating tank (3) is provided with a blow-down valve (37);

and a water level sensor (38) is arranged at the top of the heating tank (3) to detect the liquid level in the liquid storage cavity (33).

10. The temperature-changing electric water boiler according to claim 9, characterized in that a temperature probe (39) is further arranged on the heating tank (3);

the temperature probes (39) are two in number, wherein one temperature probe (39) is positioned at the top of the heating tank (3), and the other temperature probe (39) is positioned in the middle/bottom of the heating tank (3).