TWI691691B - Sectional heating structure of storage heat preservation electric water heater (2) - Google Patents

Abstract

This creation includes 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 water storage area with a closed heating area and a water storage area assembled in the outer cylinder Inner inner cylinder, 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 hot water outlet position connecting the heating area to the outer side of the outer cylinder The inner cylinder at least includes a frame enclosure board that is upright and surrounds the enclosure, a set top plate tightly attached to the upper edge of the frame enclosure plate, and a set of hollow enclosure-shaped sets provided at the top plate and connected to the heating zone Take over; and the set of take-up tubes extend upward from the top plate, and make the interior of the hollow closed-like set of take-over tubes communicate with the heating zone, and enable the inlet end of the hot water outlet position that has been set up in the heating zone to be convex After reaching the horizontal line of the top edge of the top plate, it enters the interior of the hollow closed-shaped socket; in addition, the inner cylinder is provided with the inner water intake position, and the inner water intake position is distinguished as being connected to the water storage The highest water intake at the zone and the lowest inlet connected to the heating zone, and the highest water intake and the lowest inlet are kept in communication.

Description

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

The invention relates to an electric water heater; in particular, to a section heating structure of a storage and insulation type electric water heater capable of using hot water of the highest temperature layer as an output supply (2).

Press, the applicant previously applied to Jun Bureau for application No. 107141329 "Improvement of heating structure of 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 communication The cold water inlet pipe 12 to the water storage area 100 of the outer cylinder 10, an inner cylinder 13 with a closed heating zone 130 and a group of water storage areas 100 arranged in the outer cylinder 10, and the water storage area 100 to A warm water inlet pipe 14 between the heating zones 130, a group of electric heating pipes 15 disposed in the heating zone 130, a hot water outlet pipe 16 connecting the heating zone 130 to the outside of the outer cylinder 10, a communication with the The inner drain pipe 17 between the heating zone 130 to the outside of the outer cylinder 10, an exhaust pipe 18 connecting the water storage zone 100 to the outside of the outer cylinder 10, and a communication pipe 100 connecting the water storage zone 100 to the outer cylinder 10 an outer drain pipe 19 between the outside; wherein: the inner cylinder 13 is appropriately provided with a warm water inlet pipe 14 connected to the water storage area 100, and the warm water inlet pipe 14 has a water inlet 140 of at least The water inlet of the warm water inlet pipe 14 which is located at the level of more than one-half of the total height of the water storage area 100 of the outer cylinder 10 and 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 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 first 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, cold water can flow into the heating area 130 along the water inlet 140 until After the level of the cold water filled in the heating zone 130 has exceeded the inlet 160 of the hot water outlet pipe 16, the cold water can flow into the hot water outlet pipe 16 and overflow into the heating zone 130 until the heating zone The horizontal line of the water level of 130 moves up to the drain port 141 of the warm water inlet pipe 14, so that a vacuum-like gas is formed between the horizontal line formed by the bottom edge of the drain port 141 and the inner surface of the top surface of the inner cylinder 10 At this time, starting the electric heating tube 15 to generate heat energy will cause the cold water already located on the circumference of the electric heating tube 15 to directly absorb the heat energy and generate a temperature rise and upward flow until the water temperature in the heating zone 130 reaches Up to the predetermined temperature (that is, the water temperature in the heating zone 130 will increase as the height increases, and some high hot water temperature will flow upward through the warm water inlet pipe 14 to the water storage zone 130 of the inner cylinder 13 near At the top edge horizontal line, the hot water outlet pipe 16 is opened, so that the hot water near the lower part of the heating zone 130 will first be discharged from the inlet 160 for consumers to use.

Although the above-mentioned creation can achieve its creative purpose, in the course of its operation and use, the following defects will occur: Because the inlet 160 of the hot water outlet pipe 16 is located near the heating area 130, so that the inlet 160 The temperature of the hot water at the peripheral side belongs to the lowest temperature zone in the hot water distributed in the heating zone 130. Although the hot water in the lowest temperature zone can be directly discharged through the hot water outlet pipe 16 at the initial stage of use, at the same time, the hot water flowing directly from the hot water pipe 14 can flow directly down and flow through the The electric heating tube 15 then pushes the hot water with a higher temperature to continue to be discharged from the hot water outlet pipe 16 until the lower temperature hot water originally stored in the lowest temperature zone is exhausted, and the replenishment flows into The temperature of the water in the heating zone 130 and flowing through the electric heating tube 15 is slightly higher than the temperature of cold water (that is, the lower half of the heating zone 130 will naturally form a flow, while the upper half of it will not flow downward) When it is no longer acceptable to consumers or continue to be used; in this way, although the heating zone 130 can initially heat all the cold water in the heating zone 130 above a predetermined temperature, so that the heating zone 130 remains fixed The amount of stored hot water, however, when output is used, the relatively low temperature hot water stored in the lower area of the heating area 130 can be directly supplemented by the hot water temperature distribution factor in the heating area 130 The warm water is pushed out and 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 a convection (that is, the highest hot water area in the upper half of the heating zone will only hoard and not go down Flow), so that the actual use of relatively low-temperature hot water is quickly exhausted, and the actual storage of hot water for use is seriously insufficient, and at the same time, it cannot quickly convert the incoming warm water into instantaneously. Hot water is the biggest problem for users when operating.

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 without further heating. At this time, if it is not used immediately and after standing for a period of time, due to The effect of heat convection causes the water storage area 100 and the heating area 130 to automatically achieve heat balance (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 it is used, 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 a big problem for them.

As mentioned above, 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, so that the installer is installing At the beginning of the test, only the switch (not shown) located at the exhaust pipe 18 was opened, and the hot water outlet pipe 16 was not opened, so that the cold water could only fill the water storage area 100, and Because the heating zone 130 is sealed in a vacuum, cold water cannot flow into the heating zone 130. At this time, when the electric heating tube 15 is started to generate heat energy, the electric heating tube 15 will be empty burned, which will cause burnout The phenomenon of failure is another major problem.

Therefore, how to develop a method that can effectively shorten the reheating time and ensure that the output hot water maintains a high heat state, and can reduce the loss of intangible heat energy, and can improve its heating efficiency and environmental protection and energy conservation, this is currently a great need of the industry Prioritized technical issues.

The main content of the storage heating electric water heater section heating structure (2) of the present invention is to provide an inner cylinder made of a metal material that has a closed independent heating zone, and the inner cylinder is assembled in the water storage zone of the outer cylinder Inside, and the inner cylinder at least includes a frame enclosure panel that is upright and surrounds the enclosure, a set top panel that is closely attached to the upper edge of the frame enclosure panel, and a set of hollow enclosures that are disposed at the top panel and communicate with the heating zone The sleeve-shaped connecting pipe extends upward from the top plate, and the inside of the hollow closed-shaped sleeve-connecting pipe is connected to At the heating zone, and the inlet end of the hot water outlet position which has been arranged at the heating zone can protrude beyond the horizontal line of the top edge of the top plate and enter into the interior of the hollow closed-shaped socket; and, 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 port connected to the water storage area and the lowest inlet port connected to the heating area, and the highest water intake port Maintain communication with the lowest inlet; furthermore, the heating zone is provided with the heating element and a hot water outlet from the heating zone to the outside of the outer cylinder, and the hot water outlet is located in the heating 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 intake 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 Minimized, so that the heat energy generated by the heating element will be quickly absorbed by the surrounding hot and hot water sources, and the temperature of the water source in the heating area can be quickly converted from warm to high heat, so as to effectively shorten the In addition to the required reheating time and more rapid heating efficiency, at the same time, it can also cause the generated high-heat water source to flow up into the hollow closed-shaped socket, so that the high-heat water source passes through the entrance of the hot water outlet The end flows down the side of the heating element (that is, indirect heating) and is 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 energy and effectively improve its The use of thermal efficiency to achieve environmental protection and energy saving is its progressive claim.

In order to achieve the purpose of the above 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 at the water storage area connected to the outer cylinder, and a closed The heating zone and the inner cylinder set in the water storage area of the outer cylinder, the inner water drawing position connecting the water storage area to the heating area, and one set are located in A heating element in the heating zone, and a hot water outlet connecting the heating zone to the outside of the outer cylinder; wherein: the outer cylinder is provided with a closed independent water storage area, and the water storage area can be coated At the outer periphery of the inner cylinder, the water storage area is provided for storage of the water source flowing in from the external water intake location; the external water intake location and the external The drain pipe is used as a connection between the water storage area and the outer side of the outer cylinder by the external water inlet position and the arrangement of the outer drain pipe; the inner cylinder is made of a metal heat conductive material, and its There is a closed independent heating area inside, and the inner cylinder can be accommodated in the water storage area; and the inner cylinder at least includes a frame enclosure panel that is surrounded by a closed upright, and the assembly is closely adhered to the frame enclosure panel The top plate at the rim, and a set of hollow closed-shaped sleeve joints provided at the top plate and connected to the heating zone; and the sleeve joint pipe extends upward from the top plate and connects the inside of the hollow closed-shaped sleeve joint pipe to At the heating zone, the inlet end of the hot water outlet that has been set at the heating zone can protrude beyond the horizontal line of the top edge of the top plate and then enter the interior of the hollow closed tube; the inner tube The location group is provided with the internal water intake position, and the internal water intake position is divided into the highest water intake port connected to the water storage area and the lowest intake port connected to the heating area, and the highest water intake port is connected to the The lowest inlet is kept in communication state; 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 arranged at the heating zone, and 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 that has been located at the water storage area can directly flow into the heating area from the inner water intake position and then act as the heating element It is used for reheating; the inner water intake position is set at the inner cylinder and can be used to connect the water storage area and the heating area. The inner water intake position is divided into the water storage area The highest water intake and the lowest inlet connected to the heating zone, and the highest water intake is connected to the lowest inlet, and the highest water intake cannot be higher than the horizontal line of the inlet end of the hot water outlet The location is such that the water source of the high temperature layer that has been distributed and stored in the water storage area can directly flow from the highest water intake through the lowest inlet and then enter the heating area as the heating element for reheating The heating element is set in the heating zone, and the heating element is located between the inner water intake position and the hot water outlet position; the hot water outlet position, which connects the heating zone to the outside of the outer cylinder, And the hot water outlet position includes at least an inlet end for hot water inflow, and the horizontal position of the inlet end is higher than the horizontal position of the highest water inlet of the inner water intake position; the external drain pipe is used to connect 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 outer drain pipe, and used for drainage during maintenance or cleaning.

1: outer cylinder

10: Water storage area

15: thermal resistance element

2: External water inlet position

3: inner tube

30: bottom plate

31: Frame hoarding

32: top plate

33: heating zone

34: socket takeover

35: Leak stopper

4: Inner water intake position

40: The highest water intake

41: lowest entrance

5: heating element

6: Hot water outlet position

60: entrance side

7: Inner drain pipe

9: Outlet drain

Figure 1 is a schematic sectional view of the improvement of the heating structure of a conventional storage electric water heater.

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

FIG. 3 is a schematic sectional view of a second embodiment of the invention.

The present invention relates to a storage heating type electric water heater section heating structure (2), please refer to FIG. 2, which at least includes: a closed independent storage The outer cylinder 1 of the water zone 10, an external water inlet position 2 connected to the water storage zone 10 of the outer cylinder 1, a closed independent heating zone 33 and set in the water storage zone 10 of the outer cylinder 1 The inner cylinder 3, the inner water intake position 4 connecting the water storage area 10 to the heating area 33, a group of heating elements 5 provided in the heating area 33, and a connecting the heating area 33 to the outer cylinder 1 Hot water outlet position 6 between the outside; wherein: the outer cylinder 1 is provided with a closed independent water storage area 10, and the water storage area 10 can be wrapped around the outer circumference of the inner cylinder 3, and The water storage area 10 is used as a storage for the water source flowing in from the external water inlet location 2; in addition, the water storage area 10 is respectively provided with an external water inlet location 2 and an external drain pipe 9 at appropriate positions , Through the external water inlet position 2 and the external drain pipe 9 are provided for the communication between the water storage area 10 and the outer side of the outer tube 1, in short, normal temperature water source can pass through the external water inlet position Two openings flow into the water storage area 10, and the stored water source or sludge already in the water storage area 10 can be discharged to the outer cylinder 1 through the opening operation at the outer drain 9 Outside; and the heat storage element 15 is provided outside the water storage area 10 of the outer tube 1 above, and the heat blocking element 15 is set inside the inner wall surface of the outer tube 1 or sandwiched between two layers of wall surfaces, And the heat resistance element 15 is a foam element, or a vacuum layer, or a styrofoam, etc.; the external water inlet position 2 has one end connected to the water source and the other end connected to the water storage area 10 Inside, for the purpose of flowing into the water supply stored in the water storage area 10; and the above-mentioned external water inlet position 2 is a hole through which the hollow penetrates the wall surface of the outer cylinder 1, or a hollow pipe is the best; the inner Barrel 3, which is made of a metal heat conductive material, and makes 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 at least includes a framed enclosure 31 surrounding the closed upright shape and assembled tightly A top plate 32 at the upper edge of the frame surrounding plate 31, and a set of hollow closed-shaped sleeve pipes 34 provided at the top plate 32 and connected to the heating area 33; wherein, the heating area 33 is formed by the outer cylinder 1 In terms of a closed independent area formed between the inner bottom surface or the bottom plate 30, the frame surrounding plate 31, and the top plate 32, a heating element 5 is arranged inside the heating zone 33, and is divided at the heating zone 33 A hot water outlet 6 and an inner drain 7 connected to the outside of the outer cylinder 1 are not provided, and the heating area 33 and the water storage area 10 are set by the inner water intake 4 To communicate; and the sleeve 34 extends upward from the top plate 32, and connects the inside of the hollow closed-shaped sleeve 34 to the closed-shaped heating zone 33, and has been assembled in the heating zone 33 The inlet end 60 of the hot water outlet 6 can protrude beyond the horizontal line of the top edge of the top plate 32 and then enter the interior of the hollow closed-shaped socket tube 34; and the bottom plate 30 and the outer tube of the inner tube 3 described above 1 A leakage stopper 35 is provided at the contact position of the inner bottom surface to prevent water from seeping out from here; and the above-mentioned assembly method between the sleeve tube 34 and the inner cylinder 3 is integrally formed or welded, Or it can be combined into a whole state by screwing, and the hollow closed shape of the sleeve 34 is provided for the inlet end 60 of the hot water outlet 6 to be accommodated therein; the inner water intake position 4 is set in the inner cylinder 3 And 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 at the water storage area 10 and the heating area 33 The lowest inlet 41 at the location, and the highest water intake 40 and the lowest inlet 41 Maintain a connected state, and 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 (in particular, 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 water source of the high-temperature layer distributed and stored in the water storage area 10 can directly flow from the highest water inlet 40 through the lowest inlet 41 and then enter the In the heating zone 33, the heating element 5 is used for reheating, and the high temperature layer water source (that is, the water storage zone 10) is used to increase the initial temperature value required for reheating and increase the heating rate and shorten the heating to The effect of the time required for high temperature; and the above-mentioned inner water-drawing position 4 is made of a metal heat-conducting material, and the inner water-drawing position 4 is a hole through which the hollow penetrates the wall surface of the top plate 32, or is replaced by a hollow tube The heating element 5 is an electric heating tube, etc., and it is set in the heating zone 33, and the heating element 5 is located between the inner water taking position 4 which has been set at the inner barrel 3 to It has been arranged between the hot water outlet 6 at the inner cylinder 3; the hot water outlet 6 communicates the heating zone 33 to the outside of the outer cylinder 1, and the hot water outlet 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 a metal heat conductive material, and The hot water outlet position 6 is a hole at the hollow penetration wall surface, or a hollow tube is substituted as the 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 reheated water source that has been stored in the heating zone 33 is not in use, the water source or sewage that has been located in the inner cylinder 3 is discharged through the inner drain pipe 7 Out to the outside of the outer cylinder 1 for maintenance or cleaning after emptying the water source of the inner cylinder 3; the outer 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 outer drain pipe 9 and used for maintenance or cleaning after the water source of the outer cylinder 1 is emptied; , Please refer to the second figure, you must first close the outer drain pipe 9 and the inner drain pipe 7 (that is, it does not communicate with the outside), and then open the hot water outlet 6 at this time. 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 position 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 position 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 (i.e. After covering the entire heating area 33 and the peripheral side of the heating element 5, the normal temperature water source can flow in through the inlet end 60 and be guided directly by the hot water outlet 6 to be directly output for use by others; , The hot water outlet 6 can be closed (that is, the heating zone 33 is closed to the outside of the outer cylinder 1 in a closed state) until the normal temperature water can no longer flow into the water storage zone 10, so Here, the initial installation is completed; at this time, if the heating element 5 that is already in the heating zone 33 of the inner cylinder 3 is started to generate heat energy, the normal temperature water source that is already on the side of the heating element 5 can be absorbed After the heat energy generated by the heating element 5 begins to generate thermal convection movement, 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 the instantaneous heating effect of the small space of the closed heating zone 33), so that the highest hot water source generated during continuous heating is caused by Near the upper part of the heating zone 33, the flow starts to concentrate upward into the hollow closed-shaped sleeve tube 34 (because the sleeve tube 34 is located above the heating zone 33, the sleeve tube 34 belongs to the height of the inner tube 3 At the top); at this time, the highest hot water source already located in the sleeve 34 and the high hot water source already located in the heating zone 33 will distribute contact with the inner surface of the frame surrounding plate 31, the top plate 32 of the inner cylinder 3 and the sleeve At the inner surface of the connecting pipe 34, and because the inner tube 3 (including the frame surrounding plate 31, the top plate 32 and the set of connecting tubes 34) is made of a metal conductive material, the frame surrounding plate 31 of the inner tube 3 , The inner surface of the top plate 32 and the socket tube 34 can absorb the heat energy from high heat or the highest hot water source, and re-transmit the absorbed heat energy to the outer surface of the frame surrounding plate 31, the top plate 32 and the socket tube 34 The near normal temperature water source, so that the normal temperature water source that is located near the outer surface of the frame surrounding plate 31, the top plate 32 and the socket tube 34 can start to absorb the frame surrounding plate 31, the top plate 32 and the socket tube 34 The heat energy and the temperature rise of the normal temperature water source already in the water storage area 10 (i.e., it becomes a hot water source) to form upward thermal convection movement until the warm water source already in the water storage area 10 rises After reaching the predetermined high heat temperature, the operation and termination of the heating element 5 can be cut off to continue to generate heat energy, and at the same time, the hot water source located near the upper part of the water storage area 10 can be distributed to the inner water intake position 4 Near the horizontal line of the highest water intake 40, the standby after heating or the preparation for standing still is completed; in this way, the volume formed by the heating zone 33 that has been placed on the outer peripheral side of the heating element 5 can be used Minimized so that the heating element 5 produces The heat energy will be quickly absorbed by the surrounding warm and hot water sources, and the temperature of the water source in the heating zone 33 can be quickly converted from warm to high heat, so as to effectively shorten the required reheating time and provide more rapid Heating efficiency; at this time, if the hot water outlet 6 is immediately turned into the use state, the highest hot water source that is located at the periphery of the inlet end 60 of the hot water outlet 6 can directly flow into the inlet end 60 , And the highest hot water source can be directly output as the user uses along the guiding function of the hollow tubular hot water outlet position 6; The warm and hot water source at the periphery of the highest water intake 40 of the inner water intake position 4 will be directly sucked in to replenish and flow into the near bottom edge of the heating zone 33 for mixing, and the sub-high heat already located near the upper side of the heating zone 33 The water source is pushed up to the 60-side side of the inlet end 6 of the hot water outlet 6 that is already in the socket 34 as a continuous output until the temperature of the mixed water source that has been located near the heating zone 33 drops to a predetermined low After the temperature, the heating element 5 can be restarted to start regenerating heat energy, and the hot water outlet position 6 is located on the side of the heating element 5 to form a water source that the heating element 5 can flow through the hot water outlet position 6 In the mode of indirect reheating, it can ensure that the highest hot water source discharged from the hot water outlet 6 will not have a cooling phenomenon, and at the same time, it will be sucked into the mixed water source that flows into the heating zone 33 near the bottom edge It can directly flow through the heating element at the side of 5 weeks and then upward, to quickly raise the temperature of its water source to the highest heat state, and then flow into the inlet end of the hot water outlet 6 that is already in the sleeve 34 for 60 weeks The inlet end 60 as the hot water outlet 6 can continue to discharge the highest temperature hot water stored in the heating area 33 and the water storage area 10 preferentially, which greatly reduces invisible heat Energy loss and the use of effectively improving its thermal efficiency, thereby achieving the effect of environmental protection and energy saving; furthermore (please continue from paragraph [0021]), when the heating reaches the predetermined temperature and is not waiting for immediate use and is standing still , Because the temperature of the water source in the heating zone 33 of the inner tube 3 and the socket tube 34 is higher than the temperature of the water source at the water storage area 10 of the outer tube 1, plus the socket tube in the inner tube 3 The horizontal line position of the inlet end 60 of the hot water outlet 6 in 34 is slightly higher than the highest water inlet 40 of the inner water inlet 4, so that it can only be stored in the outer cylinder 1 during the waiting process The temperature of the water source in the water zone 10 and the temperature of the water source already in the inner cylinder 3 will naturally form a thermal equilibrium state (that is, the highest hot water source temperature already in the inner cylinder 3 will be transferred to the outer cylinder 1 by heat conduction At the water source in the water storage area 10) until the temperature of the stratosphere at the same level between them is uniform (that is, the temperature of the stratosphere increases with the increase of the water level); at this time, if When the hot water outlet 6 is opened to enter the use state, the highest hot water source at the periphery of the inlet end 60 of the hot water outlet 6 can be directly flowed in from the inlet end 60, and it will follow the hollow tubular heat The guided output of the water outlet position 6 can ensure that the water temperature used for the initial output will be the highest hot water source in the inner cylinder 3, and at the same time, it will cause the highest water inlet 40 from the inner water intake position 4 to be around the 40 side The highest hot water source that is sucked in to make up the inflow can directly flow into the near bottom edge of the heating zone 33 for mixing, and then push the sub-highest hot water source that has been located above the heating zone 33 up into the socket 34 , As the inlet end 60 of the hot water outlet 6 can continue to discharge the highest temperature hot water stored in the heating area 33 and the water storage area 10 preferentially, which greatly reduces the loss of invisible heat energy and effectively improves The use of its thermal efficiency achieves the effect of environmental protection and energy saving.

Please refer to FIG. 3, which is a schematic sectional view of a second embodiment of the present invention. The main change is that the highest water intake 40 of the inner water intake position 4 is slightly lower than the hot water output position 6. The inlet end 60 is changed so that the highest water inlet 40 of the inner water intake position 4 is much lower than the inlet end 60 of the hot water outlet location 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 part of the heating zone 33 to ensure that the highest hot water source in the inner cylinder 3 can flow into the hollow closed-shaped sleeve joint 34 and the inlet end of the hot water outlet 6 At the 60-week side, the highest hot water source is continuously discharged for consumer use; as for the outer cylinder 1, the outer water inlet position 2, the inner cylinder 3, the inner water intake position 4, the heating element 5, the The structure and relative arrangement relationship 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 preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention; therefore, any changes or modifications based on the features and spirit described in the scope of the application of the present invention should include Within the scope of patent application of the present invention.

1: outer cylinder

10: Water storage area

15: thermal resistance element

2: External water inlet position

3: inner tube

30: bottom plate

31: Frame hoarding

32: top plate

33: heating zone

34: socket takeover

35: Leak stopper

4: Inner water intake position

40: The highest water intake

41: lowest entrance

5: heating element

6: Hot water outlet position

60: entrance side

7: Inner drain pipe

9: Outlet drain

Claims (9)

A section heating structure for storage and insulation type electric water heater, 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 area and group An inner cylinder arranged in the water storage area of the outer cylinder, an inner water taking position connecting the water storage area to the heating area, a group of heating elements arranged in the heating area, and a connecting the heating area to the The hot water outlet position between the outer sides of the outer cylinder; wherein: the inner cylinder is made of a metal heat-conducting material, and the inner cylinder at least includes a frame enclosure panel that surrounds and closes upright, and a group of sets are tightly attached to the frame enclosure panel The top plate at the rim, and a set of hollow closed-shaped sleeve joints provided at the top plate and connected to the heating zone; and the sleeve joint pipe extends upward from the top plate and connects the inside of the hollow closed-shaped sleeve joint pipe to At the heating zone, so that the inlet end of the hot water outlet that has been set at the heating zone can protrude beyond the horizontal line of the top edge of the top plate and enter into the interior of the hollow closed-shaped socket; by the above Structure, which can not only minimize the volume formed by the heating zone that has been placed on the outer peripheral side of the heating element, but also enable the temperature of the water source in the heating zone to be converted from warm to high heat more quickly, effectively It shortens the required reheating time and provides more rapid heating efficiency. At the same time, it can also make the highest hot water source flow upward and be covered in the hollow closed shape. At the inlet side, 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 invisible heat energy and effectively improve the use of its thermal efficiency, thereby achieving the effect of environmental protection and energy saving. The section heating structure of the storage heat preservation electric water heater as described in item 1 of the scope of the patent application, wherein the internal water intake position is divided into the one connected to the water storage area The highest water intake and the lowest inlet connected to the heating zone; and the horizontal position of the highest water intake should not be higher than the horizontal position of the inlet end of the hot water outlet. The section heating structure of the storage and insulation type electric water heater as described in item 2 of the patent application scope, wherein the frame enclosure of the inner cylinder is arranged at the inner bottom surface of the outer cylinder, so that the inner bottom surface of the outer cylinder and the frame enclosure A closed and independent heating zone is formed between the board and the top board. The section heating structure of the storage heat preservation electric water heater as described in item 2 of the scope of the patent application, wherein the frame enclosure of the inner cylinder is arranged at a bottom plate, and the bottom plate can be arranged at the inner bottom surface of the outer cylinder , So that a closed and independent heating area will be formed between the bottom plate, the frame surrounding plate, and the top plate. The section heating structure of the storage and insulation type electric water heater as described in item 1, 2, 3 or 4 of the patent application scope, wherein the hot water outlet is located at the side of the heating element for indirect heating. The section heating structure of the storage heat preservation electric water heater as described in item 5 of the patent application scope, wherein the lowest inlet is located near the bottom edge of the heating zone, and the lowest inlet of the inner water intake position and the hot water outlet The inlet end of the position is staggered in different directions, so that the inner water intake position and the hot water outlet position can be located at the side of the heating element for indirect heating at the same time. The section heating structure of the storage heat preservation electric water heater as described in item 6 of the patent application scope, wherein the assembly method between the sleeve joint and the inner cylinder is integrally formed, and the hollow closed shape of the sleeve joint tube is provided for the The inlet end of the hot water outlet is placed in it. The section heating structure of the storage heat preservation electric water heater as described in item 6 of the patent application scope, wherein the assembly between the sleeve and the inner cylinder is welded into a whole form, and the hollow closed shape is provided for the sleeve The inlet end of the hot water outlet is placed in it. The section heating structure of the storage and insulation type electric water heater as described in item 6 of the patent application scope, wherein the assembly method between the sleeve and the inner cylinder is screwed into an integral form, and the hollow closed shape of the sleeve is provided for The inlet end of the hot water outlet is accommodated therein.

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