CN222047884U - Water heating type electric heater - Google Patents

Abstract

A water heating type electric heater, which belongs to the field of heating and ventilation facility equipment; comprising the following steps: the water heating framework comprises a pair of first guide pipes I, second guide pipes II and a plurality of columnar bodies which are arranged at intervals up and down, and the columnar bodies are connected between the first guide pipes I and the second guide pipes II at intervals and are communicated with the first guide pipes I and the second guide pipes II through pipelines; the electric heating elements are inserted into the first guide pipe I and/or the second guide pipe II and used for providing heat for the heat transfer medium in the first guide pipe I and/or the second guide pipe II; a plurality of radiating fins fixedly mounted on the corresponding columnar bodies; the heat radiation cover body is integrally sleeved on a frame structure formed by the water heating framework and a plurality of heat radiation fins. The advantages are that: realizing electrothermal high-efficiency convection heat dissipation, remarkably improving heat dissipation efficiency, compact structure, high heat efficiency, convenient use and good comfort level; the electric heating element is convenient to insert, maintenance and operation are convenient, and economical efficiency is reflected.

Description

Water heating type electric heater

Technical Field

The utility model belongs to the technical field of heating and ventilation facility equipment, and particularly relates to a water heating type electric heater.

Background

The electric heater is a device which uses electric energy as a main energy source, uses resistance heating, induction heating, arc heating, electron beam heating, infrared heating or medium heating and the like, and can perform heating through direct contact, warm air convection, far infrared radiation and the like. The conventional electric heater is widely applied to various civil and public buildings such as mobile heating of houses, offices, hotels, shops, hospitals, schools, railway carriages and the like, simple movable houses and the like, so that a comfortable heating effect can be provided, and the electric heater has the advantages of convenience in movement, higher use flexibility and lower cost, is popular with the masses, and is particularly suitable for some decentralized households or users without central heating. The existing electric heater is mostly of an expansion type structure, the copper pipe is heated by the resistance wire through heat conducting insulating powder in a working mode, then heat conducting oil is heated through the copper pipe, finally, heat conducting oil is heated to expand to fill the radiator space to radiate outwards, however, the electric heater of the expansion type structure is extremely high in energy consumption and low in radiating efficiency, in addition, the purchase and use cost of the electric heater is relatively high, and a considerable potential safety hazard exists. Meanwhile, after the expansion type structure is used for a period of time, certain moisture in indoor air is lost along with the increase of indoor temperature, so that the indoor air humidity is low, a human body can feel very dry, and the use comfort level is greatly influenced. At present, there are also some different types of heaters such as a warm air type heater or a small solar heater, the warm air type heater blows hot air to perform warm air convection, the human body feel is comfortable when the electric heater is started, however, the electric heater has extremely high energy consumption, and can cause discomfort to the human body after long-time use, the small solar heater is resistant to falling and convenient to store, the electric heater is fast to heat and easy to carry, however, the light generated by the small solar heater can release a large amount of infrared rays, the eyes are easily damaged by the light rays, and leukemia is easily caused by the infrared radiation, so that the electric heater of the type has certain defects.

In order to effectively solve the above problems, a water and electricity warmer is also adopted to perform heating operation, specifically: the water electric heater utilizes the electric heating rod to heat the water in the structure, and utilizes the radiating fin to radiate outwards to realize that space is heated, and its use comfort level is better, and the cost is lower. However, the existing water and electricity heater has the defects of complex structure, large occupied space, difficult carrying and carrying, poor heat dissipation effect, high requirements on control and maintenance and high use cost; further inconvenient are: because the existing water and electricity heater is generally of an integrally formed structure, namely, the electric heating rod is fixedly arranged in the integral structure, a large amount of scale is inevitably adhered to the electric heating rod after the water and electricity heater is used for a long time, the heating effect of the electric heating rod is affected, the heating temperature of the water and electricity heater is difficult to control, and the problem of poor heat dissipation efficiency is caused; and after the electric heating rod has a certain damage problem, the electric heating rod in the electric heating rod is difficult to take out or replace for the electric heating device with an integrated structure, and the electric heating device needs to be entirely abandoned, so that the economic cost is extremely high and the product competitiveness is poor.

In view of the above prior art, there is a need for a reasonable improvement in the structure of existing electric heaters. To this end, the inventors have advantageously devised that the technical solutions described below are created in this context.

Disclosure of utility model

The utility model aims to provide the water heating type electric heater which is compact in structure, good in radiating effect, reliable and durable, is beneficial to realizing efficient convection heat radiation of electric heating by improving the structure, thereby remarkably improving radiating efficiency and guaranteeing comfort, and is beneficial to realizing convenient maintenance and replacement of an electric heating rod by optimizing the structure, thereby prolonging the service life and remarkably reducing the use cost.

The utility model aims at achieving the purposes, namely a water heating type electric heater, which comprises: the water heating framework comprises a first guide pipe I, a second guide pipe II and a plurality of columnar bodies, wherein the columnar bodies are connected between the first guide pipe I and the second guide pipe II at intervals and are communicated with the first guide pipe I and the second guide pipe II through pipelines; the electric heating elements are inserted into the first guide pipe I and/or the second guide pipe II and used for providing heat for the heat transfer medium in the first guide pipe I and/or the second guide pipe II; the heat dissipation fins are fixedly arranged on the corresponding columnar bodies and used for radiating heat in the columnar bodies outwards; the heat dissipation cover body is integrally sleeved on a frame structure formed by the water heating framework and the plurality of heat dissipation fins, and the heat dissipation cover body is fixedly connected with the plurality of columnar bodies.

In a specific embodiment of the present utility model, the first flow guiding pipe i is disposed above the second flow guiding pipe ii; the number of the electric heating parts is two, and the two electric heating parts penetrate through the external connection port of the first flow guiding pipe I and are inserted into the first flow guiding pipe I to be used for providing heat for the heat transfer medium of the first flow guiding pipe I, and the external connection port of the second flow guiding pipe II is plugged.

In another specific embodiment of the utility model, the first flow guide pipe i is a horizontally arranged U-shaped pipe structure, and is provided with a pair of first flow guide pipe straight sections i which are oppositely arranged and a first flow guide pipe circular arc section i which is connected with one end part of the two first flow guide pipe straight sections i in the length direction, a first flow guide pipe inner cavity i is formed in the first flow guide pipe i, and electric heating element matching grooves are formed in one end part of the two first flow guide pipe straight sections i, which is far away from the first flow guide pipe circular arc section i in the length direction, and the two electric heating elements are respectively inserted into the corresponding first flow guide pipe straight sections i and are matched with the electric heating element matching grooves, so that the electric heating elements and the first flow guide pipe i are connected in a mounting manner; the second flow guide pipe II is also of a U-shaped pipe structure which is horizontally arranged, the second flow guide pipe II is also provided with a pair of second flow guide pipe straight sections II which are oppositely arranged and a second flow guide pipe arc section II which is connected with one end part of the two second flow guide pipe straight sections II in the length direction, a second flow guide pipe inner cavity II is also formed in the second flow guide pipe II, the two second flow guide pipe straight sections II are far away from one end part of the second flow guide pipe arc section II in the length direction, second flow guide pipe interfaces II are also formed in the end parts of the second flow guide pipe arc sections II, and a second flow guide pipe plug II is arranged in the two second flow guide pipe interfaces II.

In yet another specific embodiment of the present utility model, a plurality of first flow guiding holes i are formed in the bottom wall of the first flow guiding tube cavity i at positions corresponding to the positions above the columns, and a plurality of second flow guiding holes ii are also formed in the top wall of the second flow guiding tube cavity ii at positions corresponding to the positions below the columns; the shape of a plurality of first honeycomb duct water conservancy diversion hole I and a plurality of second honeycomb duct water conservancy diversion hole II all with the periphery shape looks adaptation of column, and a plurality of the upper end tip of column is in the position department of the first honeycomb duct water conservancy diversion hole I that corresponds respectively with first honeycomb duct I realizes sealed fixed, a plurality of the lower extreme tip of column is in the position department of the second honeycomb duct water conservancy diversion hole II that corresponds respectively with second honeycomb duct II realizes sealed fixed to realize a plurality of columns with the fixed and the cavity liquid intercommunication that realizes between the three simultaneously of first honeycomb duct I and second honeycomb duct II.

In still another specific embodiment of the present utility model, the water heating skeleton further includes a top connection plate, a bottom connection plate and a plurality of positioning connection pipes, wherein the top connection plate is horizontally installed at the position of the opening end of the first flow guiding pipe i, the bottom connection plate is horizontally installed at the position of the opening end of the second flow guiding pipe ii, and a plurality of positioning connection pipes are vertically connected between the top connection plate and the bottom connection plate, and the first flow guiding pipe i, the second flow guiding pipe ii, the plurality of columns, the top connection plate, the bottom connection plate and the plurality of positioning connection pipes are combined together to form a squirrel-cage frame structure.

In still another specific embodiment of the present utility model, the heat dissipation fins are vertically arranged and have a pair of heat dissipation fin forcing plates arranged at opposite intervals and a heat dissipation fin flat section, the heat dissipation fin flat section is connected between one end portions of the two heat dissipation fin forcing plates, and one end of the heat dissipation fin forcing plate away from the heat dissipation fin flat section is embedded and fixed on the outer peripheral wall of the columnar body.

In a further specific embodiment of the present utility model, the heat dissipation cover is provided with a plurality of heat dissipation panels arranged vertically, a heat dissipation top shell and a heat dissipation bottom shell; the heat dissipation panel forcing clamping strips are correspondingly arranged on the two sides of the heat dissipation panels in the height direction and face the heat dissipation fins, and are fixedly connected with the columnar body through the heat dissipation fin forcing plates in a mutually matched state; the heat dissipation top shell is fixedly arranged at the top positions of the plurality of heat dissipation panels, and can cover the upper part of the water heating framework; similarly, the heat dissipation bottom shell is fixedly arranged at the bottom positions of the plurality of heat dissipation panels, and the heat dissipation bottom shell can cover the lower part of the water heating framework.

In a more specific embodiment of the present utility model, a plurality of heat dissipation top shell heat dissipation grooves distributed in a grid shape are formed on the shell of the heat dissipation top shell; and a plurality of heat dissipation grooves of the heat dissipation bottom shell which are distributed in a grid shape are also formed in the shell of the heat dissipation bottom shell.

In yet another specific embodiment of the present utility model, the electric heating element is an electric heating rod.

In yet another specific embodiment of the present utility model, the columnar body is a circular tube structure, and the circular tube is a steel tube or an iron tube.

Due to the adoption of the structure, compared with the prior art, the utility model has the beneficial effects that: firstly, a water heating framework is arranged, a circulation loop is formed by using a first heat conduction pipe I, a second flow conduction pipe II and a plurality of columnar bodies, meanwhile, water is used as a heat transfer medium in the loop, and an electric heating part is used for heating the heat transfer medium in a high-efficiency manner, so that the heat efficiency is effectively improved, the electric heating type high-efficiency convection heat dissipation is realized, the design is simple, the electric heating type water heating device is economical and practical, the energy saving and consumption reduction can be effectively realized, no air is lacked, the uniform heating in space can be realized, the drying is avoided, the comfortableness is good, meanwhile, the safety and no hidden danger are realized, the convenient carrying can be realized, and the electric heating type water heating device has obvious popularization significance; in addition, the electric heating element is inserted in the first guide pipe I and/or the second guide pipe II, once the electric heating element is damaged and the like, workers can conveniently take the electric heating element out of the first guide pipe I or the second guide pipe II to carry out corresponding replacement maintenance work, the maintenance cost can be effectively reduced while the connection structure is optimized, and the use economy is further embodied.

Drawings

FIG. 1 is an exploded view of an embodiment of the present utility model;

FIG. 2 is a schematic overall structure of the embodiment shown in FIG. 1;

FIG. 3 is an exploded view of the water heating skeletal structure of the embodiment of FIG. 1;

fig. 4 is a top view of the internal structure of the embodiment shown in fig. 1.

In the figure: 1. the water heating device comprises a water heating framework, 11 parts of first guide pipes I and 111 parts of first guide pipes I and 1111 parts of electric heating parts, 112 parts of first guide pipe arc sections I and 113 parts of first guide pipe inner cavities I and 1131 parts of first guide pipe guide holes I and 12 parts of second guide pipes II and 121 parts of second guide pipe straight sections II and 1211 parts of second guide pipe interfaces II and 122 parts of second guide pipe arc sections II and 123 parts of second guide pipe inner cavities II and 1231 parts of second guide pipe guide holes II and 124 parts of second guide pipe plugs II and 13 parts of columnar bodies, 14 parts of top connecting plates, 15 parts of bottom connecting plates and 16 parts of positioning connecting pipes. 2. An electric heating element; 3. radiating fins, 31, radiating fin forcing plates, 32, radiating fin straight sections; 4. the heat dissipation cover body, 41, the heat dissipation panel, 411, the heat dissipation panel is forced to hold the clamping strip, 42, the heat dissipation top shell, 421, the heat dissipation top shell heat dissipation groove, 43, the heat dissipation bottom shell, 431 and the heat dissipation bottom shell heat dissipation groove.

Detailed Description

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, all concepts related to the directions (or azimuths) of up, down, left, right, front and rear are directed to the position states where the drawings are being described, so as to facilitate public understanding, and thus should not be construed as being particularly limiting to the technical solutions provided by the present utility model.

Referring to fig. 1 to 4, there is shown a water heating type electric heater comprising: the water heating framework 1 is in a cage structure, the water heating framework 1 comprises a first guide pipe I11, a second guide pipe II 12 and a plurality of columnar bodies 13, the first guide pipe I11 and the second guide pipe II 12 are arranged at intervals up and down, the columnar bodies 13 are connected between the first guide pipe I11 and the second guide pipe II 12 at intervals and are communicated with each other through pipelines, and a heat transfer medium can flow back and forth in a circulation loop formed by the columnar bodies 1, the first guide pipe I11 and the second guide pipe II 12 to transfer heat; the electric heating elements 2 are inserted into the first guide pipe I11 and/or the second guide pipe II 12 and used for providing heat for a heat transfer medium in the first guide pipe I11 and/or the second guide pipe II 12, the electric heating elements 2 are detachably arranged on the first guide pipe I11 and/or the second guide pipe II 12, and workers can conveniently and rapidly disassemble and assemble the electric heating elements 2, so that replacement and maintenance work are facilitated; a plurality of heat radiating fins 3, wherein the plurality of heat radiating fins 3 are fixedly arranged on the corresponding columnar bodies 13 and are used for radiating heat in the columnar bodies 13 outwards; the heat dissipation cover 4 is integrally sleeved on a frame structure formed by the water heating skeleton 1 and the plurality of heat dissipation fins 3, the heat dissipation cover 4 is fixedly connected with the plurality of columnar bodies 13, and the heat dissipation cover 4 is used for effectively protecting the water heating skeleton 1 and the plurality of heat dissipation fins 3.

In this embodiment, the first flow guiding pipe i 11 is disposed above the second flow guiding pipe ii 12; the number of the electric heating elements 2 is two, and the two electric heating elements 2 pass through the external connection port of the first flow guiding pipe I11 and are inserted into the first flow guiding pipe I11 to provide heat for the heat transfer medium of the first flow guiding pipe I11, and the external connection port of the second flow guiding pipe II 12 is blocked; of course, the number and arrangement of the electric heating elements 2 are not limited, and according to the actual heat dissipation requirement, the electric heating elements 2 may be respectively inserted between the first guide pipe i 11 and the second guide pipe ii 12, or only inserted into the second guide pipe ii 12, so long as the corresponding assembly and heating requirement can be achieved, and the utility model is not limited herein. It should be noted that: the electric heating element 2 can be electrically connected with an external power supply through a power line, and the electric heating element 2 can also be electrically connected with a temperature sensor, wherein the temperature sensor is used for detecting the heating temperature of the electric heating element 2 so as to realize the optimal working effect.

Further, the first flow guiding pipe i 11 is a horizontally disposed U-shaped pipe structure, and the first flow guiding pipe i 11 has a pair of first flow guiding pipe straight sections i 111 disposed opposite to each other and a first flow guiding pipe arc section i 112 connected to one end of the two first flow guiding pipe straight sections i 111 in the length direction, a first flow guiding pipe inner cavity i 113 is formed in the first flow guiding pipe i 11, and an electric heating element mating groove 1111 is further formed at one end of the two first flow guiding pipe straight sections i 111 in the length direction away from the first flow guiding pipe arc section i 112, and the two electric heating elements 2 are respectively inserted into the corresponding first flow guiding pipe straight sections i 111 and are mounted in cooperation with the electric heating element mating groove 1111, so that the electric heating elements 2 are mounted and connected to the first flow guiding pipe i 11, and the electric heating elements 2 can be accommodated in the heat transfer medium in the flow guiding pipe inner cavity i 113 to perform efficient heating; similarly, the second flow guiding tube ii 12 is also a horizontally disposed U-shaped tube structure, and the second flow guiding tube ii 12 is also provided with a pair of second flow guiding tube straight sections ii 121 disposed opposite to each other and a second flow guiding tube arc section ii 122 connected to one end of the two second flow guiding tube straight sections ii 121 in the length direction, a second flow guiding tube inner cavity ii 123 is also formed inside the second flow guiding tube ii 12, and a second flow guiding tube interface ii 1211 is also provided at one end of the two second flow guiding tube straight sections ii 121 away from the second flow guiding tube arc section ii 122 in the length direction, and a second flow guiding tube plug ii 124 is disposed at each of the two second flow guiding tube interfaces ii 1211.

With continued reference to fig. 2 and 3, a plurality of first flow guiding holes i 1131 are formed in the bottom wall of the first flow guiding cavity i 113 and at positions corresponding to the positions above the columnar body 13, and a plurality of second flow guiding holes ii 1231 are also formed in the top wall of the second flow guiding cavity ii 123 and at positions corresponding to the positions below the columnar body 13; the shapes of the first flow guiding holes i 1131 and the second flow guiding holes ii 1231 are adapted to the outer peripheral shape of the columnar body 13, the upper end portions of the columnar bodies 13 are sealed and fixed with the first flow guiding holes i 11 at the positions of the corresponding first flow guiding holes i 1131, and the lower end portions of the columnar bodies 13 are sealed and fixed with the second flow guiding holes ii 12 at the positions of the corresponding second flow guiding holes ii 1231, so that the fixation of the columnar bodies 13 and the first flow guiding holes i 11 and the second flow guiding holes ii 12 and the cavity liquid communication between the three are realized.

In this embodiment, the water heating frame 1 further includes a top connecting plate 14, a bottom connecting plate 15 and a plurality of positioning connecting pipes 16, wherein the top connecting plate 14 is horizontally mounted at the opening end position of the first guiding pipe i 11, the bottom connecting plate 15 is horizontally mounted at the opening end position of the second guiding pipe ii 12, and the plurality of positioning connecting pipes 16 are vertically connected between the top connecting plate 14 and the bottom connecting plate 15, and the first guiding pipe i 11, the second guiding pipe ii 12, the plurality of columns 13, the top connecting plate 14, the bottom connecting plate 15 and the plurality of positioning connecting pipes 16 are combined together to form a squirrel-cage frame structure.

Further, the heat dissipation fin 3 is vertically disposed and has a pair of heat dissipation fin forcing plates 31 disposed at opposite intervals and a heat dissipation fin flat section 32, the heat dissipation fin flat section 32 is connected between one end portions of the two heat dissipation fin forcing plates 31, and one end of the heat dissipation fin forcing plate 31 away from the heat dissipation fin flat section 32 is embedded and fixed on the outer peripheral wall of the column body 13.

Please refer to fig. 1 and fig. 4 again, the heat dissipating cover 4 includes a plurality of vertically disposed heat dissipating panels 41, a heat dissipating top case 42 and a heat dissipating bottom case 43; wherein, a heat dissipation panel clamping strip 411 is respectively formed on two sides of the height direction of the plurality of heat dissipation panels 41 and faces the heat dissipation fins 3, the heat dissipation panel clamping strips 411 on two adjacent heat dissipation panels 41 are correspondingly arranged and are fixedly connected with the columnar body 13 through the heat dissipation fin clamping plates 31 in a mutually matched state, namely, the heat dissipation panel clamping strips 411 are fixedly connected with the outer peripheral side wall of the columnar body 13 in a mode of being overlapped and clamped on the outer sides of the heat dissipation fin clamping plates 3; the heat dissipation top shell 42 is fixedly installed at the top positions of the plurality of heat dissipation panels 41, and the heat dissipation top shell 42 can cover the upper part of the water heating framework 1; similarly, the heat dissipation bottom case 43 is fixedly installed at the bottom positions of the plurality of heat dissipation panels 41, and the heat dissipation bottom case 43 can cover the lower portion of the water heating frame 1.

In the present embodiment, a plurality of heat dissipation top shell heat dissipation grooves 421 distributed in a grid shape are formed on the shell of the heat dissipation top shell 42; the housing of the heat dissipation bottom shell 43 is also provided with a plurality of heat dissipation bottom shell heat dissipation grooves 431 distributed in a grid shape.

Preferably, the electric heating element 2 is an electric heating rod; of course, the specific type of the electric heating element 2 is not limited thereto, and may be an electric heating wire or an electric heating sheet; meanwhile, the electric heating rod is preferably a temperature control type electric heating rod, and the temperature control type electric heating rod is preferably an electric heating rod produced by Shenyang Enteng electric heating technology Co., ltd., sitsu electric heater Co., salt city, jiangsu Kabo explosion-proof electric Co., or Dongguan electric heating Co., ltd.

Further, the columnar body 13 has a circular tube structure, and the circular tube is preferably a steel tube; the cylindrical heat radiator 3 may be a cylindrical pipe such as a D-shaped pipe, an elliptical pipe, or a rounded rectangular pipe, and the like, and it is only required to satisfy that the heat transfer medium passes smoothly, which are all within the scope of the present utility model, and will not be described in detail herein.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

In summary, the technical scheme provided by the utility model overcomes the defects in the prior art, successfully completes the task of the utility model, and faithfully honors the technical effects carried by the applicant in the technical effect column above.

Claims (10)

1. A water-heating electric heater, comprising: the water heating framework (1), the water heating framework (1) comprises a first guide pipe I (11), a second guide pipe II (12) and a plurality of columnar bodies (13), wherein the columnar bodies (13) are connected between the first guide pipe I (11) and the second guide pipe II (12) at intervals and are communicated with each other through pipelines; the electric heating elements (2) are inserted into the first guide pipe I (11) and/or the second guide pipe II (12) and used for providing heat for heat transfer media in the first guide pipe I (11) and/or the second guide pipe II (12); a plurality of radiating fins (3), wherein the radiating fins (3) are fixedly arranged on the corresponding columnar bodies (13) and are used for radiating heat in the columnar bodies (13) outwards; the heat dissipation cover body (4), the whole suit of heat dissipation cover body (4) is in on the frame-type structure that water heating skeleton (1) and a plurality of fin (3) constitute, and this heat dissipation cover body (4) and a plurality of column body (13) realization rigid coupling.

2. A water-warming electric heater as claimed in claim 1, wherein: the first guide pipe I (11) is arranged above the second guide pipe II (12); the number of the electric heating parts (2) is two, the two electric heating parts (2) penetrate through the external connection port of the first flow guide pipe I (11) and are inserted into the first flow guide pipe I (11) to be used for providing heat for the heat transfer medium of the first flow guide pipe I (11), and the external connection port of the second flow guide pipe II (12) is plugged.

3. A water-warming electric heater as claimed in claim 2, wherein: the first flow guide pipes I (11) are of a U-shaped pipe structure which is horizontally arranged, the first flow guide pipes I (11) are provided with a pair of first flow guide pipe straight sections I (111) which are oppositely arranged and a first flow guide pipe circular arc section I (112) which is connected to one end part of the two first flow guide pipe straight sections I (111) in the length direction, a first flow guide pipe inner cavity I (113) is formed in the first flow guide pipes I (11), the two first flow guide pipe straight sections I (111) are far away from one end part of the first flow guide pipe circular arc section I (112) in the length direction, electric heating part matching grooves (1111) are formed in the end parts of the two first flow guide pipe straight sections I (111) which are respectively corresponding to the two electric heating parts (2) in an inserted mode, and the electric heating part matching grooves (1111) are matched and installed, and therefore the electric heating parts (2) and the first flow guide pipes I (11) are installed and connected; the second flow guide pipe II (12) is also of a U-shaped pipe structure which is horizontally arranged, the second flow guide pipe II (12) is also provided with a pair of second flow guide pipe straight sections II (121) which are oppositely arranged and a second flow guide pipe circular arc section II (122) which is connected to one end part of the two second flow guide pipe straight sections II (121) in the length direction, a second flow guide pipe inner cavity II (123) is also formed in the second flow guide pipe II (12), the two second flow guide pipe straight sections II (121) are far away from one end part of the second flow guide pipe circular arc section II (122) in the length direction, and a second flow guide pipe interface II (1211) is also formed in one end part of the second flow guide pipe circular arc section II (122), and a second flow guide pipe plug II (124) is arranged on the two second flow guide pipe interfaces II (1211).

4. A water-warming electric heater as claimed in claim 3, wherein: a plurality of first flow guide holes I (1131) are formed in the bottom cavity wall of the first flow guide pipe inner cavity I (113) and correspond to the position above the columnar body (13), and a plurality of second flow guide holes II (1231) are formed in the top cavity wall of the second flow guide pipe inner cavity II (123) and correspond to the position below the columnar body (13); the shapes of the first diversion pipe diversion holes I (1131) and the second diversion pipe diversion holes II (1231) are matched with the outer peripheral shape of the columnar body (13), the upper end parts of the columnar bodies (13) are sealed and fixed with the first diversion pipe I (11) at the positions of the corresponding first diversion pipe diversion holes I (1131), the lower end parts of the columnar bodies (13) are sealed and fixed with the second diversion pipe II (12) at the positions of the corresponding second diversion pipe diversion holes II (1231), and accordingly the fixation of the columnar bodies (13) with the first diversion pipe I (11) and the second diversion pipe II (12) and the cavity liquid communication among the columnar bodies are achieved.

5. A water-warming electric heater as claimed in claim 3, wherein: the water heating framework (1) further comprises a top connecting plate (14), a bottom connecting plate (15) and a plurality of positioning connecting pipes (16), wherein the top connecting plate (14) is horizontally arranged at the position of the opening end of the first guide pipe I (11), the bottom connecting plate (15) is horizontally arranged at the position of the opening end of the second guide pipe II (12), the plurality of positioning connecting pipes (16) are vertically connected between the top connecting plate (14) and the bottom connecting plate (15), and the first guide pipe I (11), the second guide pipe II (12), the plurality of columnar bodies (13), the top connecting plate (14), the bottom connecting plate (15) and the plurality of positioning connecting pipes (16) are jointly combined to form a squirrel-cage frame structure.

6. A water-warming electric heater as claimed in claim 1, wherein: the radiating fins (3) are vertically arranged and are provided with a pair of radiating fin forcing and holding plates (31) and a radiating fin straight section (32) which are arranged at intervals, the radiating fin straight section (32) is connected between one end parts of the two radiating fin forcing and holding plates (31), and one end of the radiating fin forcing and holding plate (31) far away from the radiating fin straight section (32) is embedded and fixed on the peripheral wall of the columnar body (13).

7. The water-warming electric heater of claim 6, wherein: the heat dissipation cover body (4) is provided with a plurality of heat dissipation panels (41), a heat dissipation top shell (42) and a heat dissipation bottom shell (43) which are vertically arranged; wherein, a heat radiation panel forcing clamping strip (411) is respectively formed at two sides of the height direction of the plurality of heat radiation panels (41) and faces the heat radiation fins (3), and the heat radiation panel forcing clamping strips (411) on two adjacent heat radiation panels (41) are correspondingly arranged and are fixedly connected with the columnar body (13) through the heat radiation fin forcing plates (31) in a mutually matched state; the heat dissipation top shell (42) is fixedly arranged at the top positions of the plurality of heat dissipation panels (41), and the heat dissipation top shell (42) can cover the upper part of the water heating framework (1); similarly, the heat dissipation bottom shell (43) is fixedly arranged at the bottom positions of the plurality of heat dissipation panels (41), and the heat dissipation bottom shell (43) can cover the lower part of the water heating framework (1).

8. The water-warming electric heater of claim 7, wherein: a plurality of radiating top shell radiating grooves (421) distributed in a grid shape are formed in the shell of the radiating top shell (42); and a plurality of heat dissipation bottom shell heat dissipation grooves (431) distributed in a grid shape are also formed in the shell of the heat dissipation bottom shell (43).

9. A water-warming electric heater as claimed in claim 1, wherein: the electric heating piece (2) is an electric heating rod.

10. A water-warming electric heater as claimed in claim 1, wherein: the columnar body (13) is of a circular tube structure, and the circular tube is a steel tube or an iron tube.