CN113465172B

CN113465172B - Heat preservation structure of electric water heater

Info

Publication number: CN113465172B
Application number: CN202010241998.XA
Authority: CN
Inventors: 陈育成
Original assignee: Jiann Jzaw Metal Industry Co ltd
Current assignee: Jiann Jzaw Metal Industry Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2023-02-17
Anticipated expiration: 2040-03-31
Also published as: CN113465172A

Abstract

The invention discloses a heat preservation structure of an electric water heater, which at least comprises: a water storage cylinder with a closed water storage area, a normal temperature water inlet communicated to the water storage area, a heating device assembled at the water storage area, and a hot water outlet communicated with the water storage area to the outer side of the water storage cylinder, wherein: the water storage barrel at least comprises an inner shell formed on the inner wall surface of the water storage area, an upper outer shell sleeved on the outer side of the inner shell from top to bottom, an upper foaming layer filled between the inner shell and the upper outer shell, a lower outer shell sleeved on the outer side of the inner shell from bottom to top, and a sunken lower foaming layer filled on the inner side of the lower outer shell.

Description

Heat preservation structure of electric water heater

Technical Field

The present invention relates to an electric water heater; in particular to an electric water heater heat preservation structure which can preserve heat and reduce reheating times.

Background

At present, a general electric water heater, as shown in fig. 1, includes a water storage tank 1 having 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, a hot water pipe 13 connected to the water storage area 10 of the water storage tank 1 to the outside of the water storage tank 1, and a set of heating pipes 15 installed at the water storage area 10 of the water storage tank 1; therefore, when the heating pipe 15 starts to heat, the cold water source distributed at the peripheral side of the heating pipe 15 directly absorbs the heat energy generated by the heating pipe 15 to start increasing the temperature of the water source, and the cold water source stored in the water storage region 10 is heated to reach a predetermined temperature through the heat convection effect to stop the operation of the heating pipe 15.

Although the electric water heater can achieve the creation purpose, the electric water heater has the following defects in the operation and use process:

when the conventional electric water heater is placed after being heated to a predetermined temperature for the first time, under the condition that the contact area between the water storage cylinder 1 and the air outside the water storage cylinder 1 is too large, hot water is directly conducted and radiated to the air through the water storage cylinder 1, so that the hot water in the water storage area 10 is quickly cooled to a predetermined starting temperature, therefore, not only is the warm water source of the whole water storage area heated, but also the heating times are too frequent, the power consumption is increased, and the electricity cost of a consumer is increased.

Therefore, how to develop a technology that can effectively shorten the number of reheating and reduce the loss of intangible heat energy is a technical problem that needs to be solved first.

Disclosure of Invention

In order to solve the above-mentioned deficiency of the prior art, the invention has disclosed a kind of electric water heater heat-insulating structure, it provides one kind and utilizes the inner shell that the inner wall of water storage area of the water storage tube forms to fill and have the foamed layer to the upper outer shell, and make the one end of water inlet of the normal temperature and one end of the hot water outlet that have already stretched out outside the inner shell accommodate and stretch out the whorl to the outside of the lower outer shell convexly respectively, so as to make the inner ring cone portion that has already filled the opening end edge of the lower foamed layer located in the lower outer shell can be laminated in the outer ring cone portion of the opening end edge of the upper foamed layer closely; therefore, the combination density can be increased due to the oppressive property of the mutual close and staggered arrangement between the outer ring cone part and the inner ring cone part, so as to reduce the contact area formed between the inner shell and the outer sides of the upper outer shell and the lower outer shell respectively, and effectively block the problem of heat loss caused by heat conduction from the inner shell, thereby greatly reducing the reheating times and the expenditure of the electric charge of a user, and further achieving the effects of heat preservation, energy saving and carbon reduction.

The technical scheme is as follows: the electric water heater keeps warm and constructs, includes:

a water storage section of thick bamboo that has closed form water storage district, intercommunication normal atmospheric temperature water inlet to this water storage district department, group locate the heating device of this water storage district department and communicate this water storage district to the hot delivery port of this water storage section of thick bamboo outside department, wherein:

the water storage barrel at least comprises an inner shell formed on the inner wall surface of the water storage area, an upper outer shell sleeved on the outer side of the inner shell from top to bottom, an upper foaming layer filled between the inner shell and the upper outer shell, a lower outer shell sleeved on the outer side of the inner shell from bottom to top, and a sunken lower foaming layer filled on the inner side of the lower outer shell.

Furthermore, the lower end of the inner shell is provided with the normal temperature water inlet protruding outwards and the hot water outlet protruding outwards, so that one end of the normal temperature water inlet and one end of the hot water outlet can penetrate through the first through hole and the second through hole and protrude out of the outer shell.

Furthermore, the first through hole and the second through hole respectively penetrate through the lower outer shell and the lower foaming layer. The outer side of the lower outer shell body which is positioned near the wire hole can be used for assembling a control box, and the electric wire can be connected to the control box after passing through the wire hole.

Further, the upper foam layer is thicker than the lower foam layer.

Furthermore, a space region is formed between the lower foaming layer and the outer side of the inner shell, so that the space region is used for accommodating an inductor or a wire.

Furthermore, the opening end edge of the upper foaming layer is provided with a convex cone-shaped outer ring cone part, and the opening end edge of the lower foaming layer is provided with a convex cone-shaped inner ring cone part, so that the combination density is increased by the compression between the outer ring cone part and the inner ring cone part due to the mutual staggering, and the heat radiation conduction from the inner shell can be effectively blocked.

Furthermore, the normal temperature water inlet at least comprises a pressing surface which is extruded and tightly pressed on the surface of the lower foaming layer and an external thread which extends downwards from the pressing surface, so that the external thread can penetrate through the first through hole and then is tightly screwed with a nut piece, and the pressing surface can be tightly pressed on the surface of the lower foaming layer.

Furthermore, the hot water outlet at least comprises a pressing surface which is extruded and tightly pressed on the surface of the lower foaming layer and a male thread which extends downwards from the pressing surface, so that the male thread can pass through the second through hole and then is tightly screwed with a nut piece, and the pressing surface can be tightly pressed on the surface of the lower foaming layer.

Furthermore, a hollow conduit is arranged at the hot water outlet, and the horizontal line position of the water outlet of the conduit is higher than the highest horizontal line position of the heating pipe.

Furthermore, the heating device comprises at least one heating pipe and a bottom plate for arranging the heating pipe group.

Furthermore, the inner shell is provided with an opening end communicated with the water storage area, the opening end is used for completely covering and assembling and fixing a bottom plate of the heating device at the opening end, and the heating pipe of the heating device can be arranged into the water storage area from the opening end.

Drawings

Fig. 1 is a schematic sectional view of an electric water heater according to the prior art.

Fig. 2 is an exploded view of the insulation structure of the electric water heater of the present invention.

Fig. 3 is an assembled cross-sectional view of fig. 2.

Wherein:

the specific implementation mode is as follows:

the technical scheme of the invention is further explained by combining the attached drawings.

The invention discloses a heat preservation structure of an electric water heater, please refer to fig. 2 and fig. 3, which at least comprises a water storage barrel 2 with a closed water storage area 20, a normal temperature water inlet 3 communicated with the water storage area 20, a heating device 5 assembled at the water storage area 20, and a hot water outlet 6 communicated with the water storage area 20 to the outer side of the water storage barrel 2, wherein:

the water storage cylinder 2 is provided with a water storage area 20 for storage and placement, and at least comprises an inner shell 201 formed on the inner wall surface of the water storage area 20, an upper outer shell 202 sleeved from top to bottom on the outer side of the inner shell 201, an upper foaming layer 203 filled between the inner shell 201 and the upper outer shell 202, a lower outer shell 204 sleeved from bottom to top on the outer side of the inner shell 201, and a concave lower foaming layer 205 filled on the inner side of the lower outer shell 204.

Further, an opening 2011 connected to the water storage area 20, the normal temperature water inlet 3 protruding outward, and the hot water outlet 6 protruding outward are disposed at the lower end of the inner housing 201.

Further, the open end 2011 allows a bottom plate 50 of the heating device 5 to be completely covered and fixed, and the heating tube 51 of the heating device 5 can be inserted into the water storage area 20 from the open end 2011.

Furthermore, the lower outer shell 204 having the concave lower foaming layer 205 is provided with a first through hole 206, a second through hole 207 and a wire hole 208 at appropriate positions thereof, so that the end of the normal temperature water inlet 3, the end of the hot water outlet 6 and the end of the electric wire 91 can respectively pass through the first through hole 206, the second through hole 207 and the wire hole 208 and then protrude out of the outer surface of the lower outer shell 204; the outer side of the lower housing 204 near the wire hole 208 can be used for assembling a control box B (i.e. the control box B is provided with an electric breaker, a display lamp, etc.), and the electric wire 91 can be connected to the control box B through the wire hole 208.

Further, the thickness of the upper foam layer 203 is thicker than that of the lower foam layer 205, and a space area a is formed between the lower foam layer 205 and the outside of the inner housing 201, so that the space area a is used for accommodating an inductor 90 or a wire 91.

Furthermore, a convex conical outer ring taper 2031 is formed at the opening end edge of the upper foam layer 203, and a convex conical inner ring taper 2051 is formed at the opening end edge of the lower foam layer 205, so that the bonding density is increased by the pressure between the outer ring taper 2031 and the inner ring taper 2051 due to the mutual offset, thereby effectively blocking the heat radiation conduction from the inner shell 201.

Further, the normal temperature water inlet 3 at least includes a pressing surface 30 pressed and pressed against the surface of the lower foaming layer 205, and an external thread 31 extending downward from the pressing surface 30 (i.e. the external thread 31 is located at the outer peripheral side of the normal temperature water inlet 3), so that the external thread 31 can penetrate through the first through hole 206 and then be tightly screwed with a nut member 8, so as to force the pressing surface 30 to tightly press against the surface of the lower foaming layer 205.

Further, the hot water outlet 6 at least includes a pressing surface 60 pressed and pressed against the surface of the lower foaming layer 205, and a male thread 61 extending downward from the pressing surface 60 (i.e. the male thread 61 is located on the outer peripheral side of the normal temperature water inlet 3), so that the male thread 61 can pass through the second through hole 207 and then be tightly screwed with a nut member 8, so as to force the pressing surface 60 to tightly press against the surface of the lower foaming layer 205.

Furthermore, a hollow conduit 65 is assembled at the hot water outlet 6, and the horizontal position of the water outlet 651 of the conduit 65 is higher than the highest horizontal position of the heating pipe 51.

Further, the heating device 5 includes at least one heating pipe 51 and a base plate 50 for assembling the heating pipe 51.

By means of the above structure, the upper and

lower foam layers

203, 204 can be filled between the upper and lower

outer shells

202, 201 and between the lower outer shell 204 and the inner shell 201, respectively, so as to reduce the contact area between the inner shell 201 and the outer sides of the upper and lower

outer shells

202, 204, respectively, and to reduce or solve the heat dissipation loss problem of the inner shell 201 due to heat conduction, thereby achieving the effects of heat preservation, energy saving and carbon reduction.

When assembling, the inductor 90 is only needed to be assembled outside the inner casing 201, and the normal temperature water inlet 3, the hot water outlet 6 and the wires 91 installed outside the inner casing 201 are respectively passed through the first through hole 206, the second through hole 207 and the wire hole 208 of the lower outer casing 204 protruding out of the lower foamed layer 205, and then the nut 8 is tightly screwed on the external threads 31 of the normal temperature water inlet 3 and the male threads 61 of the hot water outlet 6, so that the outer ring taper 2031 at the opening end of the upper foamed layer 203 can be tightly pressed and attached to the inner ring taper 2051 at the opening end of the lower foamed layer 205, so that the combination density between the outer ring taper 2031 and the inner ring taper 2051 can be increased due to the pressing property of mutual displacement between the inner ring taper 2031 and the outer ring taper 2051, thus the contact area between the inner casing and the outside air of the upper outer casing 20 and the lower outer casing 204 can be reduced, and the heat dissipation loss of the inner casing 201 can be greatly reduced, and the heat dissipation cost of the outer casing can be reduced, and the cost of users can be greatly reduced, and the cost of the users can be reduced.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; therefore, the equivalent changes or modifications of the features and the spirit described in the scope of the present application should be included in the protection scope of the present application.

Claims

1. The electric water heater keeps warm and constructs, its characterized in that includes at least: a water storage cylinder with a closed water storage area, a normal temperature water inlet communicated to the water storage area, a heating device assembled at the water storage area and a hot water outlet communicated with the water storage area to the outer side of the water storage cylinder, wherein:

this water storage section of thick bamboo includes at least that one is located this water storage district internal face formed interior casing, from last shell body of placing this interior casing outside department in of cover down by last, fills in this interior casing to should go up the foaming layer between the shell body, from lower shell body of placing this interior casing outside department in by cover up and fill in this lower shell body under the sunken form of the inboard department of shell body down the foaming layer, wherein:

the lower end of the inner shell is provided with a convex normal-temperature water inlet and a convex hot water outlet, so that one end of the normal-temperature water inlet and one end of the hot water outlet can penetrate through the first through hole and the second through hole and protrude out of the outer shell;

the first through hole and the second through hole respectively penetrate through the lower outer shell and the lower foaming layer;

the outer side of the normal-temperature water inlet is provided with an external thread and the outer side of the hot water outlet is provided with an external thread, so that the external thread and the external thread respectively pass through the first through hole and the second through hole and are tightly screwed with a nut piece, and the lower foaming layer positioned at the lower outer shell can be tightly combined with the upper foaming layer positioned at the upper outer shell.

2. The insulation structure of electric water heater as claimed in claim 1, wherein the upper foam layer has an outer cone with a convex cone shape at its open end, and the lower foam layer has an inner cone with a convex cone shape at its open end, so that the outer cone and the inner cone are pressed by each other to increase the bonding density.

3. The insulating structure of an electric water heater as claimed in claim 1, wherein the upper foamed layer is thicker than the lower foamed layer.

4. The insulation structure of claim 1, wherein a space is formed between the lower foamed layer and the outer side of the inner shell, and the space is used for accommodating an inductor or a wire.

5. The insulation structure of claim 4, wherein the heating device comprises at least one heating tube and a bottom plate for the heating tube set.

6. The insulation structure of an electric water heater according to claim 5, wherein a hollow conduit is provided at the hot water outlet, and the horizontal line of the water outlet of the conduit is higher than the highest horizontal line of the heating pipe.

7. The heat preservation structure of an electric water heater as claimed in claim 6, wherein the inner shell has an open end connected to the water storage region, the open end allows a bottom plate of the heating device to be completely covered and fixed at the open end, and the heating pipe of the heating device can be inserted into the water storage region from the open end.