TWI716905B - Electric water heater structure - Google Patents

Abstract

This creation at least includes: a water storage tank with a closed water storage area, a normal temperature water inlet pipe connected to the water storage area of the water storage tank, a set of heating devices arranged at the water storage area of the water storage tank, and a continuous The hot water outlet pipe leading from the water storage area of the water storage tank to the outer side of the water storage barrel, wherein: the hot water outlet pipe includes at least a drainage inlet for the hot water formed by heating the water storage area to flow out, and a drainage inlet A winding ring extending to one side and surrounding the circumference of the heating device, and a drainage outlet connected from the other end of the winding ring to the outside of the water storage area, and the horizontal position of the drainage inlet must be It is higher than the horizontal position of the drain outlet, and the horizontal position of the drain inlet must be higher than the highest horizontal position of the heating pipe of the heating device; in addition, the winding ring part is bent back and forth to be adjacently arranged or arranged in a spiral shape The adjacent arrangement surrounds the heating tube near the outer circumference.

Description

Electric water heater structure

The present invention relates to an electric water heater; in particular, it relates to an electric water heater structure that can achieve the dual functions of preheating and instantaneous heating.

According to the general electric water heater, please refer to Figure 1. It consists of a water storage tank 1 with a closed water storage area 10, a normal temperature water inlet pipe 12 connected to the water storage area 10 of the water storage tank 1, and a continuous The water storage area 10 of the water storage cylinder 1 to the hot water pipe 13 outside the water storage cylinder 1, and a set of heating pipes 15 arranged at the water storage area 10 of the water storage cylinder 1, wherein: the hot water pipe 13 is mainly divided into It is a water inlet 131 for the hot water formed by heating the water storage area 10 to flow out, a connecting portion 132 extending downward from the water inlet 131, and a connecting portion 132 connected to the storage from the other end of the connecting portion 132 The water outlet 133 outside the water area 10, and the horizontal position of the water inlet 131 must be higher than the horizontal position of the water outlet 133, and the horizontal position of the water inlet 131 must be higher than the highest horizontal position of the heating pipe 15 In this way, when the heating tube 15 starts to heat, the normal temperature water source that has been distributed on the peripheral side of the heating tube 15 will directly absorb the heat generated by the heating tube 15, and the water source temperature will be greatly increased, and Heat convection is generated, and the heating tube 15 will stop operating until the normal temperature water source stored in the water storage area 10 reaches a predetermined temperature due to heating.

Although the above creation can achieve its creation purpose, of course, the In the process, there will be the following shortcomings: Due to the conventional technology in the heating process, the normal temperature water source of the entire water storage area must be heated to a predetermined high temperature before stopping the operation of the heating tube. In this way, when waiting ( That is, when the temperature during the static waiting period drops to the lowest predetermined temperature, the heating tube must be started to start heating, and the temperature of the entire water storage area must be reheated to a predetermined high temperature before the heating stops, so that the capacity for each reheating If it is too large, the time required for reheating is too long, which in turn causes the power consumption to be a major problem.

As mentioned above, since each reheating refers to the entire water storage area, especially when consumers are heating while using it, the heat generated by the heating tube and expanded heat convection will often cause local After the high hot water source is neutralized and cooled by the normal temperature water source, and the heating temperature in the water storage area does not reach the predetermined temperature, it will be directly discharged from the hot water pipe for consumers to use, so that the consumers will use the temperature Low water sources are another major problem.

Therefore, how to develop a technology that can effectively shorten the reheating time, reduce the loss of intangible heat energy, and improve the heating efficiency and environmental protection and energy saving is a technical issue that the industry needs to solve first.

The main content of the electric water heater structure of the present invention is to provide a method that utilizes the horizontal position of the drain inlet of the hot water outlet pipe that is already located in the water storage area of the water storage cylinder compared to the horizontal position of the drain outlet and the heating pipe of the heating device The highest horizontal position is high, and the surrounding ring part of the hot water outlet pipe can be located on the peripheral side of the heating pipe of the heating device; in this way, the water source of the high-temperature temperature layer already located in the water storage area ( Instant hot water) Directly flow in from the drain inlet, and make it surround the periphery of the heating device along the surrounding path of the winding ring, so as to increase the heating time that it can stay on the outer periphery of the heating device, and The water source (ie hot water) of the high-temperature layer that has been located in the water storage area maintains indirect heating before being discharged to ensure that the temperature of the hot water discharged from the drainage outlet has the dual function of heat preservation and reheating. Progressive claims.

Another main content of the electric water heater structure of the present invention is to provide a hollow-shaped spacer plate set near the outer peripheral side of the surrounding ring portion of the hot water outlet pipe that is already located in the water storage area, so as to appropriately Most of the normal temperature water source flowing into the normal temperature water inlet pipe and the hot water source formed after heating through the peripheral side of the heating pipe are partitioned, so that it flows through the peripheral side of the heating pipe to the normal temperature between the spacer ring plate sets The water source will be heated quickly; in this way, it can not only limit the heat generated by the heating tube to be concentrated and distributed inside the spacer plate assembly, so that the normal temperature water source that has passed through the spacer ring plate assembly area is The heating effect of the heating tube achieves the effect of rapid and instant heating. At the same time, it also enables the surrounding ring part of the hot water outlet tube already located in the spacer plate assembly to indirectly absorb the heat generated by the heating tube, so that The temperature of the hot water flowing through the loop part of the hot water outlet pipe can be kept warm and reheated, which greatly reduces the loss of invisible heat and effectively improves the use of its thermal efficiency, thereby achieving environmental protection and energy saving. Progressive claims.

To achieve the purpose of the above creation, the main technical means of the present invention include at least: a water storage tank with a closed water storage area, a normal temperature water inlet pipe connected to the water storage area of the water storage tank, and a set of The heating device at the water storage area of the water storage barrel, and a hot water outlet pipe connecting the water storage area of the water storage barrel to the outside of the water storage barrel, and Middle: The water storage cylinder is provided with an open end connected to the water storage area, and the open end is used for assembling a substrate so that the substrate can be completely covered and assembled at the open end; the substrate is at least It is provided with a normal temperature water inlet pipe connected to the water storage area of the water storage cylinder, a positioning connection pipe for erecting the drainage outlet of the hot water outlet pipe, and a heating pipe connected to the open end for the heating device to accommodate And a sewage outlet connecting the water storage area to the outside of the water storage cylinder. When the bottom plate of the heating device is completely covered, the assembly is fixed at the container hole, and the heating tube of the heating device can pass from the The storage hole is disposed into the water storage cylinder; in addition, a spacer kit is sleeved near the outer circumference of the surrounding ring portion of the hot water outlet pipe already located in the water storage area; the hot water outlet pipe includes at least one for the A drainage inlet for the hot water formed by heating in the water storage area to flow out, a winding ring portion extending from the drainage inlet to one side and surrounding the circumference of the heating device, and a connecting ring portion from the other end Connected to the drainage outlet outside the water storage area, and the horizontal position of the drainage inlet must be higher than the horizontal position of the drainage outlet, and the horizontal position of the drainage inlet must be higher than the highest horizontal position of the heating pipe of the heating device High; and, the winding ring part is bent back and forth adjacently arranged in a polygonal shape and then surrounds the peripheral side of the heating tube, or spirally arranged immediately adjacent to the peripheral side of the heating tube; The heating device includes at least one heating tube and a bottom plate for the assembly of the heating tube.

2‧‧‧Water tank

20‧‧‧Water storage area

21‧‧‧Open end

22‧‧‧Substrate

24‧‧‧Positioning takeover

25‧‧‧Rong Kong

28‧‧‧Spacer plate kit

3‧‧‧Normal temperature inlet pipe

5‧‧‧Heating device

50‧‧‧Bottom plate

51‧‧‧Heating tube

6‧‧‧Hot water outlet pipe

61‧‧‧Drainage inlet

62‧‧‧Wrap Ring

63‧‧‧Drainage outlet

70‧‧‧stop leak

71‧‧‧Stop Leaks

9‧‧‧Sewage outlet

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

Figure 2 is a combined cross-sectional view of the electric water heater structure of the present invention.

Figure 3 is a combined cross-sectional plan view of Figure 2.

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

Figure 5 is a combined cross-sectional top view of Figure 4.

The present invention relates to an electric water heater structure, please refer to Figures 2 to 3, which at least includes: a water storage tank 2 with a closed water storage area 20, a water storage area connected to the water storage tank 2 20 normal temperature water inlet pipes 3, a set of heating devices 5 arranged at the water storage area 20 of the water storage barrel 2, and a hot water outlet pipe connecting the water storage area 20 of the water storage barrel 2 to the outside of the water storage barrel 2 6. Wherein: the water storage cylinder 2 is provided with a water storage area 20 for water supply storage, and an open end 21 connected to the outside of the water storage cylinder 2 is provided at the water storage area 20, and the opening The end 21 can be used for assembling a base plate 22, so that the base plate 22 can be completely covered and assembled at the open end 21; in addition, the base plate 22 is provided with at least one water storage area 20 connected to the water storage cylinder 2 The normal temperature water inlet pipe 3 at the location, a positioning connection pipe 24 for erecting the drainage outlet 63 of the hot water outlet pipe 6, and a receiving hole 25 connected to the open end 21 and used for the heating pipe 51 of the heating device 5 , And a sewage outlet 9 connecting the water storage area 20 to the outer side of the water storage cylinder 2. Based on this, when the substrate 22 is completely covered and assembled at the open end 21, the bottom plate 50 of the heating device 5 is completely The covering assembly is fixed at the containing hole 25, so that the heating tube 51 can be disposed from the containing hole 25 into the water storage area 20 of the water storage cylinder 2, so that the normal temperature water source can flow in through the normal temperature water inlet pipe 3. Stored in the water storage area 20, especially when there are impurities in the water storage area 20, the stored water source already located in the water storage area 20 can be discharged to the outside of the water storage tank 2 through the sewage outlet 9 ; And the above-mentioned substrate 22 and The joint of the open end 21 of the water storage cylinder 2 is provided with a leak-proof member 70, and the joint between the cavity 25 of the base plate 22 and the bottom plate 50 of the heating device 5 is provided with another leak-proof member. 71. For the purpose of preventing leakage; one end of the normal temperature water inlet pipe 3 is connected to the water source and the other end is connected to the water storage area 20 to serve as a source of supply water flowing into and stored in the water storage area 20 The above-mentioned normal temperature water inlet pipe 3 is best installed at the base plate 22 or the wall surface of the water storage cylinder 2; the heating device 5 can be an electric heating pipe, etc., which includes at least a bottom plate for assembly 50, and at least one heating tube 51 assembled at the bottom plate 50 and contained in the water storage area 20; the bottom plate 50 can be directly assembled at the base plate 22, and the bottom plate 50 can be completely covered The assembly is fixed at the container hole 25 so that the heating pipe 51 can be disposed of from the container hole 25 into the water storage area 20; the hot water outlet pipe 6 connects the water storage area 20 to the water storage cylinder 2For external use, it includes at least a drain inlet 61 for the hot water formed by heating the water storage area 20 to flow out, and a heating pipe 51 extending from the drain inlet 61 to one side and surrounding the heating device 5 The surrounding ring portion 62 near the outer periphery and a drainage outlet 63 connected from the other end of the surrounding ring portion 62 to the outside of the water storage area 20, and the horizontal position of the drainage inlet 61 must be greater than that of the drainage outlet 63 The horizontal position is high, and the horizontal position of the drainage inlet 61 must be higher than the highest horizontal position of the heating tube 51 of the heating device 5; in addition, the winding ring portion 62 is arranged in a spiral shape immediately surrounding the heating tube 51 Near the outer circumference of the heating tube, so that the wrapping ring 62 can directly absorb the heat generated by the heating tube 51 and then conduct it to the high-temperature water source inside it (Ie hot water); (as shown in Figure 2) the sewage outlet 9 is used to connect the water storage area 20 to the outside of the water storage tank 2 so that the water source has been stored in the water storage area 20 It can be discharged to the outside of the water storage cylinder 2 through the sewage outlet 9 to be used as drainage for maintenance or cleaning; when the heating pipe 51 already located in the water storage area 20 starts to generate heat, it will cause The normal temperature water source in the area formed between the peripheral side of the heating tube 51 and the hot water outlet pipe 5 sheathed near the outer peripheral side of the heating tube 51 is concentrated and concentrated by the heat generated by the heating tube 51, so that The normal-temperature water source in the above-mentioned area will instantly directly absorb all the heat energy generated from the heating tube 51, so that the normal-temperature water source already located in the above-mentioned area can instantly and rapidly increase the water temperature into a high-temperature water source state, and make the above-mentioned The area begins to generate thermal convection and flows upwards, until the high-temperature hot water source already located in the above-mentioned area flows to the high-thermal-temperature water source of the water storage area 20 (that is, the high-temperature hot water source flowing upwards will be located at The normal temperature water source at the upper edge of the surrounding ring portion 62 is further mixed to form the water storage area 20 with a progressive temperature zone distribution); at this time, since the drainage inlet 61 of the hot water outlet pipe 6 is located at the Near the uppermost edge of the water source in the water storage area 20 (that is, the highest temperature zone, or the high temperature zone, etc.), and the surrounding ring 62 of the hot water outlet pipe 6 is surrounded and located near the outer periphery of the heating pipe 51, And the horizontal position of the drainage inlet 61 must be higher than the horizontal position of the drainage outlet 63 and the highest horizontal position of the heating pipe 51; therefore, when the water source of the high temperature layer (that is, heat) has been distributed in the water storage area 20 Water) will directly flow into the drain inlet 61 of the hot water outlet pipe 6, and the high-temperature layer water source (ie hot water) will surround the outer peripheral side of the heating pipe 51 along the surrounding path of the surrounding ring portion 62 And make the high temperature layer water source (ie hot water) stay near the outer circumference of the heating tube 51 for a longer time, so that the wrapping ring 62 can continue to absorb the instantaneous generation from the heating tube 51 The heat energy is then transferred to the hot water source (ie hot water) that has passed through it to ensure that the temperature of the hot water flowing through the drain outlet 63 of the hot water outlet pipe 6 will not be lower than that of the drain inlet 61 The temperature of the inflowing hot water source (ie hot water); in this way, the hot water source (ie hot water) already located in the water storage area 20 can directly flow in from the drain inlet 61, and then It flows to the surrounding ring 62 already located near the outer circumference of the heating pipe 51 and then is discharged through the drainage outlet 63 to form a high-temperature layer water source (ie hot water) already located in the water storage area 20. The indirect heating function is maintained before to ensure that the temperature of the hot water discharged from the drain outlet 63 has the dual functions of heat preservation and reheating.

Please refer to Figures 4 to 5, which are combined cross-sectional views of the second embodiment of the present invention. There are three main changes: one is that the original open end 21 of the water storage tank 2 is assembled with a base plate 22, which is changed Therefore, the open end 21 of the water storage cylinder 2 is used for completely covering the assembly and fixing of the bottom plate 50 of the heating device 5; the second is to surround the heating tube 51 with the original winding ring portion 62 in a spiral arrangement. In the vicinity of the outer circumference of the heating tube, it is best to change the surrounding ring portion 62 to the periphery of the heating tube 51 after being bent back and forth to form a polygonal shape; the third is to change the original hot water outlet tube 6 The wrapping ring 62 is sleeved near the outer circumference of the heating tube 51 of the heating device 5, and changed to that the wrapping ring 62 of the hot water outlet pipe 6 that has been sleeved near the outer circumference of the heating tube 51 can be The insert is located in the hollow spacer ring plate kit 28, in other words, the hot water outlet pipe 6 already located in the water storage area 20 is provided near the outer circumference of the surrounding ring 62 A hollow ring spacer assembly 28, and the upper and lower edges of the hollow spacer ring assembly 28 are respectively communicated with the water storage area 20, so that normal temperature water can flow from the lower edge of the spacer assembly 28 After reaching the vicinity of the outer circumference of the heating tube 51 that is already inside, the heating of the heating tube 51 forms a thermal convection to make the high hot water source (ie, hot water) that instantly increases the temperature rise continue to flow toward the upper edge. Until it is mixed and distributed with the water storage area 20 which is already located at the upper edge of the spacer ring plate set 28 near the high-temperature layer water source; in addition, the winding ring portion 62 and the heating tube 51 can be moved from the open end 21 together. Disposal into the water storage area 20 of the water storage cylinder 2; in this way, it not only enables the heat generated by the heating tube 51 to be concentrated and distributed inside the spacer ring plate set 28, so that it has flowed through the spacer The room temperature water source in the area of the ring plate assembly 28 is heated by the heating tube 51 to achieve the effect of rapid and instantaneous heat raising of the temperature. At the same time, the hot water outlet pipe 6 already located in the spacer ring plate assembly 28 is wound around The ring 62 can indirectly absorb the heat generated by the heating tube 51, so that the temperature of the hot water flowing in the surrounding ring 62 of the hot water outlet pipe 6 can be effectively insulated and reheated to greatly Reduce the loss of intangible heat and effectively improve the use of its thermal efficiency, thereby achieving the effect of environmental protection and energy saving; as for the aforementioned water storage cylinder 2, the normal temperature water inlet pipe 3, the heating device 5, the hot water outlet pipe 6, and the sewage The structure of the port 9 and the relative setting relationship have been described in detail in the above content, so I will not repeat it here.

The above are only the preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention; therefore, all equivalent changes or modifications based on the features and spirit described in the scope of the application 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‧‧‧Open end

22‧‧‧Substrate

24‧‧‧Positioning takeover

25‧‧‧Rong Kong

3‧‧‧Normal temperature inlet pipe

5‧‧‧Heating device

50‧‧‧Bottom plate

51‧‧‧Heating tube

6‧‧‧Hot water outlet pipe

61‧‧‧Drainage inlet

62‧‧‧Wrap Ring

63‧‧‧Drainage outlet

70‧‧‧stop leak

71‧‧‧Stop Leaks

9‧‧‧Sewage outlet

Claims (10)

An electric water heater structure, which at least includes: a water storage barrel with a closed water storage area, a normal temperature water inlet pipe connected to the water storage area of the water storage barrel, and a set of heating devices arranged at the water storage area of the water storage barrel Device, and a hot water outlet pipe connecting the water storage area of the water storage tank to the outside of the water storage barrel, wherein: the hot water outlet pipe includes at least one drainage inlet for the hot water formed by heating the water storage area to flow out , A winding ring portion extending from the outer peripheral side of the drainage inlet to one side and surrounding the outer peripheral side of the heating device, and a drainage outlet connected from the other end of the winding ring portion to the outside of the water storage area , And the horizontal position of the drain inlet must be higher than the horizontal position of the drain outlet, and the horizontal position of the drain inlet must be higher than the highest horizontal position of the heating pipe of the heating device; by the above structure, the The water source of the high temperature layer formed by heating in the water storage area can flow in from the drainage inlet, and make it surround the periphery of the heating device along the surrounding path of the surrounding ring, and increase its location The heating time that the outer peripheral side of the heating device can stay to ensure that the temperature of the hot water discharged from the drain outlet has the dual functions of heat preservation and reheating. According to the electric water heater structure described in item 1 of the scope of the patent application, the heating device includes at least one heating tube and a bottom plate for the heating tube assembly. The electric water heater structure described in item 2 of the scope of the patent application, wherein the winding ring part is bent back and forth to form a polygonal shape and then surrounds the circumference of the heating tube, or surrounds in a spirally adjacent arrangement At the peripheral side of the heating tube. For example, the electric water heater structure described in item 1, 2 or 3 of the scope of patent application, wherein the water storage cylinder is provided with an open end connected to the water storage area, and the open end is used for a substrate assembly, So that the substrate can be completely covered and assembled at the open end; in addition, the substrate is provided with a cavity through the wall, and the cavity can be connected to the opening end, so that the bottom plate of the heating device can be completely covered The assembly is fixed at the containing hole, and the heating tube of the heating device can be disposed from the containing hole into the water storage cylinder. For example, the electric water heater structure described in item 4 of the scope of patent application, wherein the base plate is provided with at least a normal temperature water inlet pipe connected to the water storage area of the water storage tank, and a drainage outlet for the hot water outlet pipe Positioning to take over. For the electric water heater structure described in item 5 of the scope of patent application, a spacer plate set is sheathed near the outer circumference of the surrounding ring portion of the hot water outlet pipe already located in the water storage area. The electric water heater structure described in item 1, 2 or 3 of the scope of patent application, wherein the water storage cylinder is provided with an open end connected to the water storage area, and the open end is used for the bottom plate assembly of the heating device It is designed so that the bottom plate of the heating device can completely cover the assembly and be fixed at the opening end. The electric water heater structure described in item 7 of the scope of patent application, wherein the bottom plate is provided with at least a normal temperature water inlet pipe connected to the water storage area of the water storage tank, and a drainage outlet for the hot water outlet pipe The positioning takes over. For the electric water heater structure described in item 8 of the scope of patent application, a spacer ring plate set is sleeved near the outer circumference of the surrounding ring portion of the hot water outlet pipe already located in the water storage area. For example, the electric water heater structure described in item 9 of the scope of patent application, wherein the bottom plate is additionally provided with a sewage outlet connecting the water storage area of the water storage tank to the outside of the water storage tank.

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