TW202026575A - Interval heating structure of storage and thermal insulation type electric water heater (2) for outputting and supplying hot water of the highest temperature layer - Google Patents

Abstract

The present invention at least comprises: an outer cylinder with a closed water storage area; an outer water inlet position communicated to a water storage area of the outer cylinder; an inner cylinder provided with a closed heating area and assembled within the water storage area of the outer cylinder; an inner water intake position for communicating the water storage area to the heating area; a heating element assembled within the heating area; and a hot water outlet position for communicating the heating area to the outside of the outer cylinder. The inner cylinder at least includes a frame enclosure plate with an upright shape for surrounding and enclosing; a top plate assembled tightly at an upper edge of the frame enclosure plate; and a hollow closed sleeve pipe assembled at the top plate and communicated to the heating area. The sleeve pipe extends upwards from the top plate, and the inside of the hollow closed sleeve pipe is communicated to the heating area, while an inlet end assembled at the hot water outlet position of the heating area can be extended over the horizontal line of the top edge of the top plate to enter the hollow enclosed sleeve pipe. In addition, the inner cylinder is equipped with the inner water intake position, and the inner water intake position is divided into a highest water intake port communicated to the water storage area and a lowest intake port communicated to the heating area, so that the highest water intake port and the lowest intake port are kept in communication with each other.

Description

Interval heating structure of storage and heat preservation electric water heater (2)

The present invention relates to an electric water heater; in particular, it relates to a storage and heat preservation type electric water heater interval heating structure (2) that can use hot water in the highest temperature layer as an output supply.

Press, the applicant previously filed an application to the Jun Bureau No. 107141329 "Improvement of the heating structure of the storage type electric water heater", please refer to Figure 1, which mainly includes: an outer cylinder 10 with a closed water storage area 100, a connection The cold water inlet pipe 12 at the water storage area 100 of the outer cylinder 10, a closed heating area 130 and an inner cylinder 13 arranged in the water storage area 100 of the outer cylinder 10, connect the water storage area 100 to The warm water inlet pipe 14 between the heating area 130, a group of electric heating pipes 15 arranged in the heating area 130, a hot water outlet pipe 16 connecting the heating area 130 to the outside of the outer cylinder 10, and a connecting An inner drain pipe 17 between the heating area 130 and the outer side of the outer cylinder 10, an exhaust pipe 18 connecting the water storage area 100 to the outer side of the outer cylinder 10, and an exhaust pipe 18 connecting the water storage area 100 to the outer cylinder 10 The outer drain pipe 19 between the outsides; wherein: the inner cylinder 13 is equipped with a warm water inlet pipe 14 connected to the water storage area 100 at an appropriate place, and the water inlet 140 of the warm water inlet pipe 14 is at least It is located at a horizontal position above one-half of the total height of the water storage area 100 of the outer cylinder 10, and the water inlet of the warm water inlet pipe 14 that has been assembled at the inner cylinder 13 The horizontal height of 140 is lower than the horizontal height of the air inlet 180 of the exhaust pipe 18 which is already located in the water storage area 100. With the above structure, the cold water flowing into the cold water inlet pipe 12 can be filled in the In the water storage area 100, after the water storage height in the water storage area 100 exceeds the water inlet 140 of the warm water inlet pipe 14, the cold water can flow into the heating area 130 along the water inlet 140 until After the cold water level filled in the heating zone 130 has exceeded the inlet 160 of the hot outlet pipe 16, the cold water can flow into the hot outlet pipe 16 and overflow into the heating zone 130 until the heating zone The water level of 130 moves upward to the drain port 141 of the warm water inlet pipe 14, so that a vacuum form is formed between the horizontal line formed by the bottom edge of the drain port 141 and the top surface of the inner cylinder 10 At this time, starting the electric heating tube 15 to generate heat energy will make the cold water on the side of the electric heating tube 15 directly absorb the heat energy to produce a temperature rise and flow upward until the water temperature in the heating zone 130 reaches Until the predetermined temperature (that is, the water temperature in the heating zone 130 will increase with the increase in height, and will cause part of the high hot water temperature to flow upward through the warm water inlet pipe 14 to the water storage area 130 of the inner cylinder 13 At the top edge horizontal line, in this way, the hot water outlet pipe 16 is opened, so that the hot water near the heating zone 130 will be discharged from the inlet 160 first for consumers to use.

Although the above creation can achieve its creation purpose, it will have the following deficiencies during operation and use: the inlet 160 of the hot water outlet pipe 16 is located near the heating zone 130, so that the inlet 160 The hot water temperature on the peripheral side belongs to the lowest temperature zone in the hot water distributed in the heating zone 130. Therefore, when the hot water is output, Although the hot water in the lowest temperature zone can be directly discharged through the hot water outlet pipe 16 in the initial stage of use, at the same time, the hot water directly flowing in from the hot water pipe 14 will directly flow down and flow through the hot water pipe. The electric heating pipe 15 then pushes the hot water with a higher temperature to be discharged from the hot water outlet pipe 16 until the lower temperature hot water originally stored in the lowest temperature layer area is exhausted, and the hot water is refilled. The temperature of the water flowing through the heating tube 15 in the heating zone 130 is slightly higher than the temperature of the cold water (that is, the lower half of the heating zone 130 will naturally flow, while the upper half will not flow downwards) At the same time, it can no longer be accepted by consumers or continue to use; as a result, although the heating zone 130 can heat all the cold water in the heating zone 130 to above a predetermined temperature at the beginning, the heating zone 130 can maintain a fixed The amount of stored hot water, however, when used for export, the relatively low temperature hot water stored in the lower area of the heating zone 130 can be directly supplemented by the inflow due to the distribution of the hot water temperature in the heating zone 130 The warm water is pushed and then discharged to the outside of the hot water outlet pipe 16 for use, so that the lower half of the heating zone 130 will automatically form convection (that is, the highest hot water area in the upper half will only accumulate and not go down. Flowing), so that the relatively low temperature hot water actually used is quickly exhausted, and the actual hot water storage capacity for use is seriously insufficient. At the same time, it is impossible to quickly convert the supplementary warm water into Hot water is the biggest trouble for users during operation.

As mentioned above, when the temperature of the hot water in the heating zone 130 reaches a predetermined temperature, the electric heating tube 15 will be cut off immediately and no longer heating. At this time, if it is not used immediately and left for a period of time, the The effect of heat convection makes the water storage area 100 and the heating area 130 automatically reach a thermal equilibrium effect (that is, the water storage area 100 The water temperature layer at the same level as the heating zone 130 is the same). At this time, if the use is started, the lower temperature water source will be directly discharged from the hot water outlet pipe 16 to the outside, which will cause the initial use The phenomenon of insufficient water temperature is another major trouble.

As mentioned above, since the horizontal height of the air inlet 180 of the exhaust pipe 18 is higher than the horizontal height of the water inlet 140 of the warm water inlet pipe 14 that has been installed at the inner cylinder 13, the installation personnel will At the beginning of the test, only the switch (not shown in the figure) already located at the exhaust pipe 18 was turned on, and the hot water outlet pipe 16 was not opened, so that cold water could only be filled in the water storage area 100, and Because the heating zone 130 is in a vacuum-tight shape, cold water cannot flow into the heating zone 130. At this time, if the electric heating tube 15 is activated to generate heat, the electric heating tube 15 will be burnt out and cause burnout. The phenomenon of failure is another major problem.

Therefore, how to develop a device that can effectively shorten the reheating time and ensure that the output of hot water maintains a high heat state, and can reduce the loss of intangible heat energy, and can improve its heating efficiency and be environmentally friendly and energy-saving. This is a great need for the industry. Priority technical issues to be solved.

The main content of the section heating structure (2) of the storage and heat preservation electric water heater of the present invention is to provide a metal material that already has a closed independent heating zone. The inner cylinder is assembled in the water storage area of the outer cylinder. The inner cylinder includes at least a surrounding closed upright frame enclosure, a top plate assembled tightly at the edge of the frame enclosure, and a set of hollow enclosures arranged at the top plate and connected to the heating zone Shaped socket pipe, the socket pipe extends upward from the top plate, and the hollow and closed shape of the socket pipe is connected to At the heating zone, the inlet end of the hot water outlet position that has been assembled at the heating zone can protrude beyond the horizontal line of the top edge of the top plate and then enter into the hollow and closed shape of the socket; further, the The inner cylinder is provided with the inner water intake position, and the inner water intake position is divided into the highest water intake connected to the water storage area and the lowest inlet connected to the heating area, and the highest water intake Keep in communication with the lowest inlet; in addition, the heating area is respectively provided with the heating element and a hot water outlet position connected from the heating area to the outer cylinder, and the hot water outlet position is located in the heating area The side of the element, and the inlet end of the hot water outlet position will be higher than the highest water inlet of the inner water inlet position; in this way, it can not only make the volume formed by the heating zone on the outer peripheral side of the heating element To minimize, so that the heat generated by the heating element will be quickly absorbed by the surrounding warm and hot water source, and the temperature of the water source in the heating zone can be quickly converted from warm heat to high heat, so as to effectively shorten the In addition to the required reheating time and faster heating efficiency, it also enables the high hot water source generated to flow upwards into the hollow and enclosed sleeve pipe, so that the high hot water source passes through the inlet of the hot water outlet position The end flows downward through the side of the heating element (that is, indirect heating) and then discharged to the outside, which can ensure that the high hot water source discharged from the hot water outlet will not cool down, and greatly reduce the loss of invisible heat and effectively improve it. The use of thermal efficiency to achieve the effect of environmental protection and energy saving is an advanced proposition.

In order to achieve the purpose of the above-mentioned creation, the main technical means of the present invention include at least: an outer cylinder with a closed water storage area, an external water inlet position connected to the water storage area of the outer cylinder, and a closed water storage area. The heating zone and group are set in the inner cylinder in the water storage area of the outer cylinder, connected with the water storage area to the inner water intake position between the heating area, and one set is set in The heating element in the heating zone and a hot water outlet position connecting the heating zone to the outside of the outer cylinder; wherein: the outer cylinder is provided with a closed and independent water storage area, and the water storage area can be covered At the outer periphery of the inner cylinder, and make the water storage area for the storage of the water inflow from the external water inlet location; the appropriate locations of the water storage area are respectively provided with an external water inlet location and an external The drain pipe is respectively used as the connection between the water storage area and the outside of the outer cylinder by the external water inlet position and the arrangement of the outer drain pipe; the inner cylinder is made of metal heat-conducting material, and its A closed and independent heating zone is provided inside, and the inner cylinder can be contained in the water storage area; and the inner cylinder at least includes a surrounding closed upright frame enclosure, which is assembled tightly on the frame enclosure The top plate at the edge, and a set of hollow closed socket pipes arranged at the top plate and connected to the heating zone; and the socket pipe extends upward from the top plate, and the hollow closed socket pipe is connected to At the heating zone, the inlet end of the hot water outlet position that has been assembled at the heating zone can protrude beyond the horizontal line of the top edge of the top plate and then enter the hollow and enclosed shape of the sleeve pipe; the inner tube The group is provided with the internal water intake position, and the internal water intake position is divided into the highest water intake connected to the water storage area and the lowest intake connected to the heating area, and the highest water intake is connected to the The lowest inlet port maintains a state of communication; in addition, a heating element is arranged inside the heating zone, and a hot water outlet position connected to the outside of the outer cylinder is provided at the heating zone, so that the heating zone and the storage The water areas are connected by the setting of the inner water intake position, so that the high-temperature layer water source already located at the water storage area can directly flow into the heating area from the inner water intake position and then serve as the heating element Used for reheating; the internal water intake location is set at the inner cylinder and can be used to connect the water storage area with the heating area. The internal water intake location is divided into being connected to the water storage area The highest intake of water and the lowest intake connected to the heating zone, and the highest intake of water is in communication with the lowest intake, and the highest intake of water cannot be higher than the horizontal line of the inlet end of the hot water outlet Location so that the high-temperature water source distributed and stored in the water storage area can directly flow from the highest water intake through the lowest intake and then enter the heating area to serve as the heating element for reheating Use; The heating element is set in the heating zone, and the heating element is located between the inner water intake position to the hot water outlet position; the hot water outlet position, which communicates the heating zone to the outer cylinder outside the use, And the hot water outlet position includes at least an inlet end for the inflow of hot water, and the horizontal position of the inlet end is higher than the horizontal position of the highest water intake of the inner water intake position; the outlet water pipe is connected to the Between the water storage area and the outer side of the outer cylinder, so that the water source stored in the water storage area can be discharged to the outer side of the outer cylinder through the drain pipe, which is used for drainage during maintenance or cleaning.

1‧‧‧Outer cylinder

10‧‧‧Water storage area

15‧‧‧Heat resistance element

2‧‧‧External water inlet position

3‧‧‧Inner cylinder

30‧‧‧Bottom plate

31‧‧‧Frame enclosure

32‧‧‧Top plate

33‧‧‧Heating area

34‧‧‧Socket

35‧‧‧Stop Leaks

4‧‧‧Internal water intake location

40‧‧‧Highest water intake

41‧‧‧Minimum Entry

5‧‧‧Heating element

6‧‧‧Hot water outlet position

6‧‧‧Entrance

7‧‧‧Internal drain pipe

9‧‧‧External water pipe

Figure 1 is a schematic cross-sectional view of an improved section heating structure of a conventional storage-type electric water heater.

Figure 2 is a schematic sectional view of the section heating structure (2) of the storage and heat preservation electric water heater of the present invention.

Fig. 3 is a schematic cross-sectional view of the second embodiment of the present invention.

The present invention relates to a section heating structure (2) of a storage and heat preservation electric water heater. Please refer to Figure 2 which includes at least: a closed independent storage The outer cylinder of the water area 10 1, an external water inlet position connected to the water storage area 10 of the outer cylinder 1, a closed and independent heating area 33 and arranged in the water storage area 10 of the outer cylinder 1 The inner cylinder 3 connected to the water storage area 10 to the heating area 33, an inner water intake position 4, a set of heating elements 5 arranged in the heating area 33, and a connection between the heating area 33 and the outer cylinder 1. The hot water outlet position 6 between the outer sides; wherein: the outer cylinder 1 is provided with a closed and independent water storage area 10, and the water storage area 10 can be wrapped around the outer periphery of the inner cylinder 3, and The water storage area 10 is used for storage of the water inflowed from the external water inlet location 2; in addition, the water storage area 10 is provided with an external water inlet location 2 and an external drain pipe 9 at appropriate locations. , Through the arrangement of the external water inlet 2 and the external water pipe 9 are respectively used as the communication between the water storage area 10 and the outer side of the outer cylinder 1. In short, the normal temperature water source can pass through the external water inlet The two openings flow into the water storage area 10, and the stored water source or sludge that has been located in the water storage area 10 can be discharged to the outer cylinder 1 through the opening operation of the drain pipe 9 The outer side; and the outer side of the water storage area 10 of the outer cylinder 1 is provided with a heat-resisting element 15, and the heat-resisting element 15 is arranged on the inner side of the inner wall of the outer cylinder 1 or sandwiched between the two walls, And make the heat resistance element 15 a foam element, or a vacuum layer, or a styrofoam, etc.; the external water inlet 2 has one end connected to the water source and the other end connected to the water storage area 10 The inner part is used as a water supply source for inflow and stored in the water storage area 10; and the above-mentioned outer water inlet position 2 is a hollow hole penetrating the wall surface of the outer cylinder 1, or a hollow tube is the best; Tube 3, which is made of metal thermal conductive material, and the inner tube 3 can be accommodated in the water storage area 10 (that is, the water storage area 10 is wrapped around the outer periphery of the inner cylinder 3); the inner cylinder 3 includes at least a surrounding closed upright frame enclosure 31, and a tight assembly A top plate 32 at the upper edge of the frame wall 31, and a set of hollow closed socket pipes 34 arranged at the top plate 32 and connected to the heating zone 33; wherein, the heating zone 33 is formed by the outer cylinder 1 In terms of the inner bottom surface or a closed and independent area formed between the bottom plate 30, the frame wall 31, and the top plate 32, the heating area 33 is provided with a heating element 5 and is located in the heating area 33 Don’t provide a hot water outlet 6 and the inner drain pipe 7 connected to the outside of the outer cylinder 1, so that the heating zone 33 and the water storage area 10 are set by the inner water taking location 4 In addition, the socket pipe 34 extends upward from the top plate 32, and the hollow and closed socket pipe 34 is connected to the closed heating zone 33, and has been assembled at the heating zone 33 The inlet end 60 of the hot water outlet position 6 can protrude beyond the horizontal line of the top edge of the top plate 32 to enter the hollow and closed-shaped socket pipe 34; and the bottom plate 30 of the inner tube 3 and the outer tube 1 The contact position of the inner bottom surface is provided with a leak stopper 35 to prevent water from seeping from here; and the above-mentioned assembly method between the sleeve pipe 34 and the inner cylinder 3 is integrally formed, or is welded, Or it is combined into a whole state by screwing, and the hollow and closed socket pipe 34 is used for the inlet end 60 of the hot water outlet 6 to be contained therein; the inner water inlet 4 is assembled in the inner tube 3 It can be used to connect the water storage area 10 and the heating area 33; in addition, the inner water intake location 4 is divided into the highest water intake 40 connected to the water storage area 10 and the heating area 33 The lowest inlet 41 at the location, and the highest intake 40 is connected to the lowest inlet 41 The horizontal position of the highest water intake 40 cannot be higher or slightly lower than the horizontal position of the inlet end 60 of the hot water outlet 6 (especially, it cannot be lower than at least the total height of the water storage area 10). More than two-thirds of the horizontal height position is the best), so that the high-temperature water source distributed and stored in the water storage area 10 can directly flow from the highest water intake 40 through the lowest intake 41 and then enter the The heating zone 33 is used for reheating the heating element 5, and used as a high-temperature layer water source (ie, the water storage zone 10) to increase the initial temperature required for reheating, increase the heating rate, and shorten the heating to The effect of the required high temperature and time; and the above-mentioned inner water intake position 4 is made of metal thermally conductive material, and the inner water intake position 4 is a hollow hole penetrating the wall of the top plate 32, or a hollow tube to replace it The heating element 5 is an electric heating tube, etc., and it is assembled in the heating zone 33, and the heating element 5 is arranged in the inner cylinder 3 at the inner water intake position 4 to It has been arranged between the hot water outlet positions 6 at the inner cylinder 3; the hot water outlet position 6 is used to connect the heating zone 33 to the outside of the outer cylinder 1, and the hot water outlet position 6 includes at least one hot water supply The inlet end 60 for inflow, and the horizontal position of the inlet end 60 is higher than the horizontal position of the highest water intake 40 of the inner water intake position 4; and the hot water outlet position 6 is made of metal heat-conducting material, and The hot water outlet position 6 is a hollow hole through the wall surface, or a hollow pipe to replace it is best; the inner drain pipe 7 is connected between the heating zone 33 and the outer side of the outer cylinder 1, so that When the reheating water source stored in the heating zone 33 is not in use, the water source or sewage already located in the inner cylinder 3 is discharged through the inner drain pipe 7 To the outside of the outer cylinder 1 for maintenance or cleaning after the water source of the inner cylinder 3 is drained; the drain pipe 9 is used to connect the water storage area 10 to the outside of the outer cylinder 1 to The water source stored in the water storage area 10 can be discharged to the outside of the outer cylinder 1 through the drain pipe 9, which is used for maintenance or cleaning after the water source of the outer cylinder 1 is drained; when it is first installed and tested , Please refer to Figure 2. The external drain pipe 9 and the internal drain pipe 7 must be closed (that is, not communicating with the outside), and then the hot water outlet position 6 should be opened. Turn on the normal temperature water source, so that the normal temperature water source can flow into the water storage area 10 through the external water inlet location 2 until the water level of the water storage area 10 is higher than the top plate 32 of the inner cylinder 3 and the inner water intake location 4 After the highest water intake 40, the normal temperature water source will flow directly from the highest water intake 40 into the heating zone 33 until the cumulative water level of the normal temperature water source reaches the inlet end 60 of the hot water outlet 6 (that is, the After covering the entire heating area 33 and located on the peripheral side of the heating element 5), the normal temperature water source can flow in through the inlet end 60 and be guided by the hot water outlet 6 to be directly output for use by others; , The hot water outlet position 6 can be closed (that is, the heating zone 33 and the outside of the outer cylinder 1 are closed and disconnected), until the room temperature water can no longer flow into the water storage area 10, so Then, the first installation is completed; at this time, if the heating element 5 located in the heating zone 33 of the inner cylinder 3 starts to generate heat, the normal temperature water source already located on the side of the heating element 5 can absorb After the heat generated by the heating element 5, the heat convection movement starts to occur until the normal temperature water source in the entire heating zone 33 quickly becomes a high hot water source (due to The volume of the heating zone 33 is reduced to a minimum, so that the heating element 5 only performs instantaneous heating of a small space for the closed heating zone 33), which will cause the highest hot water source produced during continuous heating to be Near the upper part of the heating zone 33, the upward flow begins to concentrate into the hollow closed socket pipe 34 (because the socket pipe 34 is located above the heating zone 33, the socket pipe 34 is formed at the height of the inner cylinder 3 The uppermost position); at this time, the highest hot water source already located in the sleeve pipe 34 and the high hot water source already located in the heating zone 33 will be distributed in contact with the frame enclosure 31, the inner surface of the top plate 32 and the sleeve of the inner cylinder 3 The inner surface of the connecting tube 34, and because the inner tube 3 (including the frame enclosure plate 31, the top plate 32 and the socket tube 34) is made of metal conductive material, the frame enclosure plate 31 of the inner tube 3 The inner surface of the top plate 32 and the sleeve pipe 34 can absorb heat energy from high heat or the highest hot water source, and conduct the absorbed heat energy to the outer surface of the frame enclosure plate 31, the top plate 32 and the sleeve pipe 34 Near the normal temperature water source, so that the normal temperature water source located near the outer surface of the frame enclosure plate 31, the top plate 32 and the sleeve pipe 34 can begin to absorb from the frame enclosure plate 31, the top plate 32 and the sleeve pipe 34 The heat energy cum causes the normal temperature water source already located in the water storage area 10 to produce a temperature rise change (that is, it becomes a warm water source) to form an upward thermal convection phenomenon, until the warm and hot water source already located in the water storage area 10 rises After reaching the predetermined high heating temperature, the operation of the heating element 5 can be cut off and the function of continuing to generate heat energy can be terminated. At the same time, the warm and hot water source already located near the upper part of the water storage area 10 can be distributed in the water intake location 4 The highest water intake 40 is close to the horizontal line, that is, the preparation for waiting or standing for use after heating is completed; in this way, the volume formed by the heating zone 33 that has been placed on the outer periphery of the heating element 5 can be used To minimize, so that the heating element 5 produces The heat energy will be quickly absorbed by the surrounding warm and hot water source, so that the temperature of the water source in the heating zone 33 can be quickly converted from warm heat to high heat, so as to effectively shorten the required reheating time and provide faster Heating efficiency; at this time, if the hot water outlet position 6 is immediately turned on and enters the use state, the highest hot water source already located at the side of the inlet end 60 of the hot water outlet position 6 can directly flow in from the inlet end 60 , And enable the highest hot water source to follow the guiding action of the hollow tubular hot water outlet position 6 and be directly output for use by the user; at this time, the highest hot water source in the inner cylinder 3 flows out and is already located The warm water source at the 40 side of the highest water intake of the inner water intake position 4 will be directly sucked in to supplement the heating zone 33 near the bottom edge for mixing, and the second high heat already located near the heating zone 33 The water source is pushed upward to enter the hot water outlet position 6 already located in the socket 34 at the inlet end 60 side of the hot water outlet as a continuous output, until the temperature of the mixed water source located near the heating zone 33 drops to a predetermined low After the temperature, the heating element 5 can be restarted to start generating heat again, and because the hot water outlet position 6 is located at the side of the heating element 5, the heating element 5 is able to flow through the water source in the hot water outlet position 6. In the indirect reheating mode, it can be ensured that the highest hot water source discharged from the hot water outlet position 6 will not cool down, and at the same time, it will be sucked to supplement the mixed water source flowing into the heating zone 33 near the bottom edge It can flow directly through the 5 sides of the heating element and then flow upwards to quickly increase the temperature of the water source to the highest heat state, and then flow to the inlet end of the hot water outlet 6 already located in the socket 34 for 60 cycles On the other hand, as the inlet end 60 of the hot water outlet position 6, the hot water at the highest temperature that has been stored in the heating zone 33 and the water storage zone 10 can be discharged and used first, thereby greatly reducing invisible heat Energy loss and effective use of heat efficiency, thereby achieving the effect of environmental protection and energy saving; Furthermore (please follow the paragraph [0021]), when the heating reaches the predetermined temperature without immediate use, it is left standing and waiting , Because the temperature of the water source in the heating zone 33 of the inner cylinder 3 and the socket pipe 34 is higher than the temperature of the water source already located in the water storage area 10 of the outer cylinder 1, plus, the socket of the inner cylinder 3 The horizontal line position of the inlet end 60 of the hot water outlet position 6 in the cylinder 34 is slightly higher than the highest water inlet 40 of the inner water inlet position 4. Therefore, in the process of standing and waiting, it is possible to make the outer cylinder 1 The temperature of the water source in the water storage area 10 and the temperature of the water source already located in the inner cylinder 3 will naturally form a thermal equilibrium state (that is, the highest temperature of the hot water source already located in the inner cylinder 3 will be transferred to the already located in the outer cylinder through heat conduction) 1 the water source in the water storage area 10) until the temperature of the thermosphere at the same level between the two is consistent (that is, the temperature of the thermosphere increases with the increase of the water level); at this time, If the hot water outlet position 6 is turned on again to enter the use state, the highest hot water source already located at the periphery of the inlet end 60 of the hot water outlet position 6 can directly flow in from the inlet end 60 and follow the hollow tube The guiding output of the hot water outlet position 6 can ensure that the water temperature used at the beginning of the output will be the highest hot water source in the inner cylinder 3, and at the same time, it will be from the highest water inlet 40 side of the inner water inlet position 4 The highest hot water source that is sucked in to supplement the inflow can directly flow into the near bottom edge of the heating zone 33 for mixing, and then push the second-highest hot water source located near the upper part of the heating zone 33 upward to the socket 34 Inside, as the inlet end 60 of the hot water outlet 6 can continue to discharge the highest temperature hot water stored in the heating zone 33 and the water storage zone 10 for priority use, thereby greatly reducing the loss of intangible heat energy and effectively Improve the use of its thermal efficiency, thereby achieving the effect of environmental protection and energy saving.

Please refer to Figure 3, which is a combined cross-sectional schematic diagram of the second embodiment of the present invention. The main change is: the highest water intake 40 of the inner water intake position 4 is slightly lower than that of the hot water outlet position 6. The inlet end 60 is changed to that the highest intake port 40 of the inner water intake position 4 is much lower than the inlet end 60 of the hot water outlet position 6 (but must be above the top plate 32 of the inner cylinder 3), and the inner water intake position The lowest inlet 41 of 4 is located near the upper portion of the heating zone 33 to ensure that the highest hot water source in the inner cylinder 3 can flow into the hollow closed socket pipe 34 and is located at the inlet end of the hot water outlet 6 The 60-round side, as the highest hot water source for consumers to continuously discharge; as for the above-mentioned outer cylinder 1, the external water intake position 2, the inner cylinder 3, the inner water intake position 4, the heating element 5, the The structure and relative arrangement of the hot water outlet position 6, the inner drain pipe 7, and the outer drain pipe 9 have been described in detail above, so they will not be repeated 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.

1‧‧‧Outer cylinder

10‧‧‧Water storage area

15‧‧‧Heat resistance element

2‧‧‧External water inlet position

3‧‧‧Inner cylinder

30‧‧‧Bottom plate

31‧‧‧Frame enclosure

32‧‧‧Top plate

33‧‧‧Heating zone

34‧‧‧Socket

35‧‧‧Stop Leaks

4‧‧‧Internal water intake location

40‧‧‧Highest water intake

41‧‧‧Minimum Entry

5‧‧‧Heating element

6‧‧‧Hot water outlet position

6‧‧‧Entrance

7‧‧‧Internal drain pipe

9‧‧‧External water pipe

Claims (9)

A storage and heat preservation type electric water heater section heating structure (2), which at least includes: an outer cylinder with a closed water storage area, an external water inlet position connected to the water storage area of the outer cylinder, and a closed heating The area and assembly are arranged in the inner cylinder in the water storage area of the outer cylinder, the inner water intake position connecting the water storage area to the heating area, a group of heating elements arranged in the heating area, and a connection to the heating area The hot water outlet position between the outer side of the outer cylinder and the outer cylinder; wherein: the inner cylinder is made of metal heat-conducting material, and the inner cylinder includes at least a surrounding closed upright frame enclosure, a set of closely fitted to the frame The top plate at the edge of the enclosure, and a set of hollow closed socket pipes arranged at the top plate and connected to the heating zone; and the socket pipe extends upward from the top plate and makes the hollow closed inside the socket pipe Is connected to the heating zone, and enables the inlet end of the hot water outlet position that has been assembled in the heating zone to protrude beyond the horizontal line of the top edge of the top plate and then enter into the hollow and closed shape of the socket pipe; With the above structure, it can not only minimize the volume formed by the heating zone that has been sheathed on the outer peripheral side of the heating element, but also enable the water source temperature in the heating zone to be converted from warm heat to high heat more quickly , In order to effectively shorten the required reheating time and provide faster heating efficiency, at the same time, it can also make the highest hot water source generated flow upwards and cover the hollow and closed socket tube and already located in the heat At the side of the inlet end of the water outlet, it can ensure that the high hot water source discharged from the hot water outlet will not cool down, and greatly reduce the loss of intangible heat energy and effectively improve the use of its thermal efficiency, thereby achieving the effect of environmental protection and energy saving . As described in item 1 of the scope of patent application, the storage and heat preservation type electric water heater interval heating structure (2), wherein the internal water intake location is divided into the connection to the water storage The highest water intake in the zone and the lowest inlet connected to the heating zone; and the horizontal position of the highest water intake cannot be higher than the horizontal position of the inlet end of the hot water outlet. As described in item 2 of the scope of patent application, the storage and heat preservation type electric water heater section heating structure (2), wherein the frame enclosure of the inner cylinder is assembled on the inner bottom surface of the outer cylinder so that the inner bottom surface of the outer cylinder A closed and independent heating zone is formed between the frame enclosure board and the top board. As described in item 2 of the scope of patent application, the storage and thermal insulation electric water heater section heating structure (2), wherein the frame enclosure of the inner cylinder is assembled at a bottom plate, and the bottom plate can be assembled on the outer cylinder At the inner bottom surface, a closed and independent heating zone is formed between the bottom plate, the frame enclosure plate, and the top plate. As described in item 1, 2, 3 or 4 of the scope of patent application, the storage and heat preservation type electric water heater interval heating structure (2), wherein the hot water outlet is located at the side of the heating element for indirect heating. As described in item 5 of the scope of patent application, the storage and heat preservation electric water heater section heating structure (2), wherein the lowest inlet is located near the bottom edge of the heating zone, and the lowest inlet of the inner water intake position The inlet ends of the hot water outlet position are arranged staggered in different directions, and the inner water inlet position and the hot water outlet position can be located at the side of the heating element at the same time for indirect heating. As described in item 6 of the scope of patent application, the storage and heat preservation type electric water heater section heating structure (2), wherein the sleeve pipe and the assembly method between the inner cylinder are integrally formed, and the sleeve pipe is hollow and closed It is used for containing the inlet end of the hot water outlet position in it. For example, the section heating structure (2) of the storage and heat preservation electric water heater described in item 6 of the scope of patent application, wherein the assembly method between the sleeve pipe and the inner cylinder is welded into a whole shape, and the sleeve pipe is hollow and closed It is used for containing the inlet end of the hot water outlet position in it. For example, the section heating structure (2) of the storage and heat preservation electric water heater described in item 6 of the scope of patent application, wherein the assembly method between the sleeve pipe and the inner cylinder is screwed into an integral form, and the sleeve is hollow and closed. The connecting pipe is used for containing the inlet end of the hot water outlet position in it.

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