TW202200944A - Structure of heat stored electric water heater includes a water storage tank, a heating apparatus, a normal-temperature water inlet pipe and a hot water outlet pipe - Google Patents

Abstract

This invention at least includes a water storage tank with a water storage region, a heating device arranged inside the water storage tank, a normal-temperature water inlet pipe for supplying a normal-temperature water source into the water storage tank, and a hot water outlet pipe capable of guiding a hot water source to be output to the outer side of the water storage tank, wherein the water storage tank includes a water storage region for storing water and a top gas chamber that is included from above the upside of the highest water level line formed in the water storage region to the inner top surface of the water storage tank; the heating apparatus includes more than one heating pipe and a bottom plate provided for assembling the heating pipe; the normal-temperature water inlet pipe is configured to supply a normal-temperature water source into the interior of the water storage region; the hot water outlet pipe includes at least one encircling section, a hot water inlet arranged at the encircling section and used for the inflow of the hot water source, and a conveying section communicated to the other end of the encircling section for outputting the hot water source to the outside of the water storage tank. Moreover, the encircling section is located above the horizontal line of the heating pipe, and the encircling section needs to be immersed in a high-temperature layer region formed by the heating water source.

Description

Heat storage electric water heater structure

The present invention relates to an electric water heater; in particular, to a structure of a heat storage electric water heater which can increase the initial temperature of the hot water by making the hot water stay longer in the high temperature layer area.

According to the general electric water heater, please refer to FIG. 1, which consists of an outer cylinder 1, which at least includes a water storage area 10 for water supply storage, and a set of heating pipes 16 arranged at the water storage area 10. , a normal temperature water inlet pipe 17 connecting the normal temperature water source to the water storage area 10, and a hot water outlet pipe 18 connecting the upper part of the water storage area 10 to the outer side of the outer cylinder 1; in this way, when the heating pipe 16 When the heating is started, the normal temperature water source distributed on the side of the heating pipe 16 will directly absorb the heat energy generated by the heating pipe 16 to increase the temperature of the water source, and the temperature of the increased water source (ie, hot water) will directly rise. The flow gathers, until the temperature of the water source in the water storage area 10 reaches the preset water temperature, the heating pipe 16 can be stopped to continue to operate; in this way, the water storage area 10 will be stationary due to The water source stored in the water storage area 10 will automatically form an arrangement of different temperature layers (that is, the temperature closer to the highest water level is higher, and the lower it is, the colder it is), so that the water outlet 180 of the hot water outlet pipe 18 is located in the The water storage area 10 is near the highest water level line, so that the hot water source already located in the water storage area 10 will be directly discharged from the water outlet 180 of the hot water outlet pipe 18 to the outside of the outer cylinder 1 for consumers to use.

Although the above creation can achieve its creative purpose, however, in the process of operation and use, the following defects will occur:

Since the hot water outlet pipe of the conventional electric water heater is arranged in a straight line at the water storage area, the hot water that has been distributed in the water storage area near the highest water level line can directly flow out from the hot water outlet pipe, and it will The normal temperature water source that has been located in the normal temperature water inlet pipe is injected into the water storage area, and the normal temperature water source that has flowed into the water storage area will be directly injected into the water outlet by the attraction of the water outlet (i.e. The dynamic water line will not pass through the peripheral side of the heating pipe), although it will be mixed and injected into the water outlet according to the proportion, however, the normal temperature water source will be mixed with the hot water source according to a certain ratio, so that it flows into the water outlet The temperature of the hot water source inside is greatly reduced, which in turn causes consumers to be troubled that the preset water temperature cannot be used for bathing in winter.

Therefore, how to develop a method that can make the hot water stay in the high temperature zone for a longer time to increase the initial temperature of the hot water, and can meet the hot water temperature required by consumers for bathing in winter, is a priority solution for the industry at present. technical issues.

The main content of the structure of the thermal storage electric water heater of the present invention is to provide a surrounding section that is located near the highest water level line of the water storage area by means of the surrounding section that has been arranged between the hot water inlet of the hot water outlet pipe and the conveying section, and the The surrounding section must be immersed in the water source of the high heat temperature layer of the water storage area; in this way, the water source of the high heat temperature layer can be circulated in the surrounding section between the hot water inlet and the conveying section. So that the hot water source in the surrounding section can also be absorbed through the material of the surrounding section to absorb the heat energy already located in the upper half of the water storage area, so that the temperature of the hot water source output by the hot water outlet pipe is maintained. The efficacy of warming or not cooling is a progressive proposition.

In order to achieve the purpose of the above creation, the main technical means of the present invention at least include: a water storage cylinder with a water storage area, a heat collecting sleeve assembled at the water storage area, assembled at the water storage cylinder and located at the A heating device at the inside of the heat collecting sleeve, a normal temperature water inlet pipe for supplying a normal temperature water source into the water storage area of the water storage tank, and a hot water source that guides the hot water source already located in the heat collecting sleeve to output to the outside of the water storage tank. A water outlet pipe, wherein: the water storage cylinder at least includes a water storage area for water storage, and an air chamber that has been stored in the water storage area from above the highest water level formed in the water storage cylinder to the inner top surface of the water storage cylinder; The thermal sleeve is assembled at the water storage area of the water storage cylinder, which at least includes a water inlet for the inflow of the normal temperature water source already located in the water storage area, an exhaust port connected to the air chamber, A heating area for accommodating heating pipes, and a heat collecting area connected to the top of the heating area and for setting the hot water inlet of the hot water outlet pipe; the heat collecting area and the water storage area are not directly connected; The cross-sectional area of the heating zone is smaller than the cross-sectional area of the heat collecting zone; the heating device includes at least one or more heating pipes and a bottom plate for the heating pipe assembly; one end of the normal temperature water inlet pipe is connected to the normal temperature water source and The other end flows into the interior of the water storage area; the hot water outlet pipe guides the hot water source to output to the outside of the water storage tank, and the hot water outlet pipe at least includes a hot water inlet for the inflow of the hot water source, and outputs the hot water source. A conveying section for the hot water source to the outside of the water storage cylinder, and a surrounding section that communicates between the hot water inlet and the conveying section, the surrounding section is located above the horizontal line of the heating pipe, and the surrounding section is located at the the heat collecting area; the output section is located between the heating area of the heat collecting sleeve and the heating pipe, and the output section will pass through the water inlet and then be connected to the outside of the water storage cylinder, so that the The hot water source already located in the heat collection area is output to the outside of the water storage tank side; this output segment is best set in a straight line.

2: water tank

20: Water storage area

21: Top air chamber

3: Heat collecting sleeve

30: Heating zone

301: Ring Plate

302: Inlet

31: Collecting area

311: Top cover

312: Side ring plate

313: Bottom Plate

315: Inner air chamber

316: exhaust port

5: Heating device

50: Bottom plate

51: Heating tube

6: normal temperature water inlet pipe

7: hot water pipe

70: Surround segment

701: Hot water inlet

71: Conveying section

Figure 1 is a schematic diagram of a combined cross-sectional view of a conventional electric water heater.

Figure 2 is a combined cross-sectional view of the present invention during static heating.

Figure 3 is a combined cross-sectional view of the present invention when it is used in dynamic heating.

FIG. 4 is a combined cross-sectional view of the second embodiment of the present invention.

The present invention relates to a structure of a thermal storage electric water heater, please refer to FIG. 2 to FIG. 3 , which at least includes: a water storage tank 2 having a water storage area 20 , and a heating device assembled inside the water storage tank 2 5. The normal temperature water inlet pipe 6 for supplying the normal temperature water source into the interior of the water storage cylinder 2, and the hot water outlet pipe 7 for guiding the output of the hot water source to the outside of the water storage cylinder 2, wherein:

The water storage cylinder 2 at least includes a water storage area 20 for water storage, and a top air chamber 21 that has been stored in the water storage area 20 from above the highest water level line formed in the water storage cylinder 2 to the inner top surface of the water storage cylinder 2; In addition, a heating device 5 is arranged inside the water storage area 20 of the water storage cylinder 2;

The heating device 5 includes at least one or more heating tubes 51 and a bottom plate 50 for the heating tubes 51 to be assembled; the above-mentioned heating device 5 is an electric heating tube or the like;

One end of the normal temperature water inlet pipe 6 is connected to the normal temperature water source and the other end is connected to the interior of the water storage area 20;

The hot water outlet pipe 7 guides the hot water source to be output to the outside of the water storage cylinder 2, and the hot water outlet pipe 7 at least includes a surrounding section 70, a heat source disposed at one end of the surrounding section 70 and used for the inflow of the hot water source. The water inlet 701 and the conveying section 71 connected to the other end of the surrounding section 70 and outputting the hot water source to the outside of the water storage cylinder 2; 70 needs to be immersed in the high temperature layer area formed by the heating water source; the output section 71 is best set in a straight strip;

Please refer to FIG. 3, when using hot water while heating, the hot water in the hot water pipe 7 will flow to the outside due to the opening of the hot water outlet pipe 7, and the hot water inlet 701 already located in the hot water outlet pipe 7 will be made. The hot water source of the high heat temperature layer on the peripheral side is sucked into the hot water inlet 701, and the water source below the water storage area 20 flows upward, and at the same time, the normal temperature water source already located in the normal temperature water inlet pipe 6 will be made. Injected into the water storage area 20; at this time, due to the output of the hot water inlet 701, a direct attraction force is formed, and the normal temperature water inlet pipe 6 will form an outward spraying force, so that the normal temperature water inlet pipe 6 The normal temperature water sprayed out will directly flow through each water temperature layer already located in the water storage area 20 and then be mixed into the hot water inlet 701 according to a certain ratio, so that the mixed water that has just entered the hot water inlet 701 will be mixed. The temperature of the hot water source is slightly lower, and the temperature of the mixed hot water source that has been slightly cooled will be lower than that of the hot water source that has been located in the high-temperature layer of the water storage area 20; at this time, the mixed hot water that has been slightly cooled The temperature of the water source will flow along the path of the surrounding section 70. In addition, the surrounding section 70 is immersed in the high heat temperature layer of the water storage area 20, so the high heat already located in the water storage area 20 will be caused. The temperature of the hot water source in the temperature layer transfers its heat energy through the heat conduction of the surrounding section 70 itself. The guide cum is absorbed to the slightly cooled mixed hot water water source located in the surrounding section 70, so as to gradually increase the temperature of the slightly cooled mixed hot water water source. Similarly, the path length of the surrounding section 70 increases. The mixed hot water that has been slightly cooled comes from the time it stays or flows in the surrounding section 70, so that the mixed hot water that has been slightly cooled has a longer time to absorb the hot water already located at the high thermal temperature layer of the water storage area 20. The heat energy of the hot water source will be re-conducted to the slightly cooled hot water source, so that the temperature of the mixed hot water source that has passed through the surrounding section 70 will be increased to be quite close to the heat of the high temperature layer. The temperature of the water source, and then the temperature of the hot water source output by the hot water outlet pipe 7 has the effect of keeping warm or not cooling.

Please refer to FIG. 4 , which is a combined cross-sectional view of the second embodiment of the present invention. The main change is: a heating device 5 and a heating device 5 and a heating device 5 and a The hot water outlet pipe 7 is changed to that a heat collecting sleeve 3 is assembled at the water storage area 20, and a heating pipe 51 of the heating device 5 and a hot water outlet pipe 7 are arranged in the heat collecting sleeve 3, wherein, The heat collecting sleeve 3 is made of a thermally conductive material (eg, metal material, etc.), and at least includes a heating area 30 for accommodating the heating tube 51 for heating, and a connection located above the heating area 30 for the heating The hot water inlet 701 of the hot water outlet pipe 7 and the heat collecting area 31 for the surrounding section 70 are provided, and the heating area 30 is surrounded by a hollow cylindrical ring plate 301, and the heating area 30 There is a water inlet 302 for the inflow of the normal temperature water source already located in the water storage area 20; the heat collecting area 31 is composed of a top cover plate 311, a side ring plate 312 connected to the top cover plate 311, and a side ring plate 312 connected to the side The ring plate 312 is surrounded by the bottom plate 313 between the ring plate 301 and is above the highest water level line of the heat collecting area 31 An inner air chamber 315 is formed between the top cover plate 311 and the top cover plate 311 or the side ring plate 312 is provided with an exhaust port 316 connecting the inner air chamber 315 to the top air chamber 21; In addition, the heat collecting area 31 and the water storage area 20 are not directly connected, and the cross-sectional area of the heating area 30 is smaller than the cross-sectional area of the heat collecting area 31; in addition, the surrounding area of the hot water outlet pipe 7 The section 70 is located in the heat collecting area 31, and the output section 71 is installed between the heating area 30 of the heat collecting sleeve 3 and the heating pipe 51, so that the hot water is transported to the outside of the water storage tank 2, Or the output section 71 will pass through the water inlet 302 and then be connected to the outside of the water storage cylinder 2; as for the above-mentioned water storage cylinder 2, the heating device 5, the normal temperature water inlet pipe 6, and the hot water outlet pipe 7, etc. The structure and relative arrangement relationship have been described in detail in the above content, so they will not be repeated here.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention; therefore, all equivalent changes or modifications made according to the features and spirit described in the scope of the present invention shall include within the scope of the patent application of the present invention.

2: water tank

20: Water storage area

21: Top air chamber

5: Heating device

50: Bottom plate

51: Heating tube

6: normal temperature water inlet pipe

7: hot water pipe

70: Surround segment

701: Hot water inlet

71: Conveying section

Claims (7)

A thermal storage electric water heater structure at least comprises: a water storage cylinder with a water storage area, a heating device assembled inside the water storage cylinder, a normal temperature water inlet pipe for supplying a normal temperature water source into the interior of the water storage cylinder, and guiding a hot water source Output to the hot water outlet pipe at the outside of the water storage tank, where: The water storage cylinder at least includes a water storage area for water storage, and a top air chamber that has been stored above the highest water level line formed in the water storage area to the inner top surface of the water storage cylinder; The heating device includes at least one or more heating pipes and a bottom plate for the heating pipe group; The normal temperature water inlet pipe is used to supply the normal temperature water source into the interior of the water storage area; The hot water outlet pipe guides the hot water source to output to the outside of the water storage tank, and the hot water outlet pipe at least includes a surrounding section, a hot water inlet disposed at the surrounding section and used for the inflow of the hot water source, and a hot water inlet connected to the surrounding section. The other end of the surrounding section is the conveying section for outputting the hot water source to the outside of the water storage cylinder; in addition, the surrounding section is located above the horizontal line of the heating pipe, and the surrounding section needs to be immersed in the high temperature layer area formed by the heating water source ; With the above structure, when the hot water is in use, the hot water source in the hot water inlet will be directly attracted to the hot water source that has flowed into the normal temperature water source and the high temperature layer hot water source that has been located at the peripheral side of the hot water inlet. It is mixed and sucked in an automatic proportion, and the temperature of the mixed hot water source that initially flows into the hot water inlet is lower than that of the water source in the higher temperature layer, and the lower mixed hot water source is forced to follow the surrounding section. In the guiding direction of the device, the flow is fully mixed and the time required to pass through the surrounding section is increased, so that the temperature of the hot water source of the high temperature layer will pass through the surrounding section. The heat absorption effect of the heat transfer is conducted to the lower mixed hot water source that has been located in the surrounding section, so that the temperature of the mixed hot water source that has passed through the surrounding section will be quite close to the temperature of the hot water source in the high temperature layer, Further, the temperature of the hot water source output by the hot water outlet pipe has the effect of keeping warm or not cooling. The structure of the thermal storage electric water heater as described in item 1 of the scope of the patent application, wherein a heat collecting sleeve is further set at the water storage area of the water storage cylinder. The thermal storage electric water heater structure as described in item 2 of the scope of the patent application, wherein the heat collecting sleeve at least comprises a water inlet for the inflow of a normal temperature water source already located in the water storage area, a water inlet connected to the top air chamber The exhaust port, the heating area for accommodating the heating pipe, and the heat collecting area connected to the upper part of the heating area and for accommodating the surrounding section; there is no direct connection between the heat collecting area and the water storage area. Connected. The thermal storage electric water heater structure as described in claim 3, wherein the cross-sectional area of the heating area is smaller than the cross-sectional area of the heat collecting area. The structure of the thermal storage electric water heater as described in claim 4, wherein the output section is preferably arranged in a straight strip. The thermal storage electric water heater structure as described in claim 5, wherein the output section is installed between the heating area of the heat collecting sleeve and the heating pipe, and then the hot water is delivered to the outside of the water storage cylinder . The structure of the thermal storage electric water heater as described in claim 5 or 6, wherein the output section passes through the water inlet and then communicates to the outside of the water storage tank.

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