Insulated roll type fluid electric heater

Abstract

The utility model discloses an insulating roll type fluid electric heater, which relates to the technical field of electric heaters, and comprises a shell, the bottom ends of the two sides of the shell are fixedly connected with supporting plates, one end of each supporting plate is fixedly provided with a power supply box, one side wall of each power supply box is electrically connected with an electric heating roll, and the other side wall of each power supply box is electrically connected with an electric heating coil. A liquid inlet pipe penetrates through the top end of the shell, a transverse pipe is fixedly connected to the bottom end of the liquid inlet pipe, a hollow rolling plate penetrates through one side wall of the transverse pipe, a liquid outlet pipe is fixedly connected to the middle of the hollow rolling plate, a top box is fixedly connected to the middle of the top end of the shell, and the top box is filled with a heat-conducting medium. By arranging a series of structures, fluid can fully absorb heat, so that the heating effect of the electric heater is improved, the interior of the heater can be preheated, the temperature of the interior of the electric heater can be rapidly increased, and the time for preparing for heating in the early stage of the electric heater is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to an insulating coil-type fluid electric heater. Background Art

[0002] The working principle of electric heaters is mainly to convert electrical energy into thermal energy. They are widely used to heat, insulate and heat flowing media. The most common application is the heating of liquids. Since liquids are conductive and electric heaters require electricity, existing fluid electric heaters all have better insulation capabilities.

[0003] However, when the existing electric heater is passed through the fluid to be heated, the position of the electric heating structure in the heating cavity is fixed, and it may not cover the entire interior of the cavity. As a result, the fluid cannot absorb enough heat when flowing and is directly discharged outside the electric heater, resulting in poor heating effect of the electric heater. In addition, when heating, the existing electric heater usually passes the heated medium into the heating cavity of the electric heater before starting the electric heating structure, and it is necessary to wait until the electric heater generates heat before continuing to control the flow of the heated medium, resulting in a long time-consuming process of preparing the electric heater for heating. Utility Model Content

[0004] The purpose of the present utility model is to provide an insulated coil-type fluid electric heater to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an insulated coil-type fluid electric heater, comprising a shell, the bottom ends of both sides of the shell are fixedly connected to support plates, one end of the support plate is fixedly installed with a power box, one side wall of the power box is electrically connected to an electric heating coil, a liquid inlet pipe passes through the top of the shell, the bottom end of the liquid inlet pipe is fixedly connected to a cross pipe, a side wall of the cross pipe passes through a hollow coil, the middle part of the hollow coil is fixedly connected to a liquid outlet pipe, the middle part of the top end of the shell is fixedly connected to a top box, the interior of the top box is filled with a heat-conducting medium, and the middle part of the bottom end of the shell is fixedly connected to a bottom box.

[0006] Preferably, a water pump is fixedly installed on the top of the top box, a return pipe is provided at the input end of the water pump, and the output end of the water pump passes through the top of the top box.

[0007] Preferably, the bottom end of the return pipe passes through a side wall of the bottom box, and the top box is communicated with the interior of the bottom box through the return pipe.

[0008] Preferably, a liquid outlet is provided at the junction of the top box and the top of the shell, and a liquid inlet is provided at the junction of the bottom box and the bottom of the shell.

[0009] Preferably, solenoid valves are installed on the top of the liquid inlet and the liquid outlet, and the top box and the bottom box are communicated with the interior of the shell through the liquid outlet and the liquid inlet respectively.

[0010] Preferably, both sides of the bottom end of the hollow coil are fixedly connected with clamping strips, the hollow coil is fixedly connected to the shell through the clamping strips, and the electric heating coil is movably connected to the hollow coil.

[0011] Preferably, the liquid outlet pipe passes through a side wall of the shell, and the liquid outlet pipe is communicated with the interior of the hollow coil.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This insulated coil-type fluid electric heater has a coiled electric heating coil and hollow coils and transverse tubes that are staggered around the outside of the electric heating coil. When the heated fluid enters the hollow coil through the transverse tube, it will flow from the outside to the center along the flat hollow coil, so that the fluid can flow more dispersedly and can be continuously heated by the electric heating coil, so that the fluid can fully absorb heat, thereby improving the heating effect of the electric heater.

[0014] 2. This insulated coiled fluid electric heater uses a top box, a bottom box and a heat-conducting medium so that the heat generated by the electric heater during operation can heat and store the heat-conducting medium in the top box. When the electric heater is used again after an intermittent shutdown, the heated heat-conducting medium in the top box will flow into the interior of the shell under the control of the solenoid valve, preheating the interior of the heater so that the interior of the electric heater can heat up quickly, thereby shortening the initial preparation and heating time of the electric heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top box and bottom box structures of the utility model;

[0017] Figure 3 This is a schematic diagram of the hollow coil and electric heating coil structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the return pipe and water pump structure of the utility model.

[0019] In the figure: 1. Power box; 2. Support plate; 3. Liquid inlet pipe; 4. Outer shell; 5. Water pump; 6. Top box; 7. Liquid outlet pipe; 8. Return pipe; 9. Horizontal pipe; 10. Hollow coil; 11. Electric heating coil; 12. Card strip; 13. Liquid inlet; 14. Bottom box; 15. Heat transfer medium; 16. Solenoid valve; 17. Liquid outlet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4 As shown, the insulated coil-type fluid electric heater of this embodiment includes a shell 4, the bottom ends of both sides of the shell 4 are fixedly connected to support plates 2, one end of the support plate 2 is fixedly installed with a power box 1, one side wall of the power box 1 is electrically connected to an electric heating coil 11, the top of the shell 4 is penetrated by a liquid inlet pipe 3, the bottom end of the liquid inlet pipe 3 is fixedly connected to a cross pipe 9, one side wall of the cross pipe 9 is penetrated by a hollow coil 10, the middle part of the hollow coil 10 is fixedly connected to a liquid outlet pipe 7, the middle part of the top end of the shell 4 is fixedly connected to a top box 6, the interior of the top box 6 is filled with a heat-conducting medium 15, and the middle part of the bottom end of the shell 4 is fixedly connected to a bottom box 14.

[0024] Specifically, a cavity is provided inside the shell 4 for placing the electric heating coil 11 and the hollow coil 10, and also for the flow of the heat-conducting medium 15. The function of the support plate 2 is to support the interior of the shell 4. The power supply box 1 is electrically connected to the input end of the electric heating coil 11 to provide electric energy to the electric heating coil 11 so that the electric heating coil 11 can smoothly convert the electric energy into heat energy. The function of the cross pipe 9 is to allow the heated fluid to disperse and flow into the flat and rolled hollow coil 10 so that the heated fluid can fully penetrate the outer wall of the electric heating coil 11. Contact, thereby facilitating the heated fluid to absorb heat. The interior of the hollow coil 10 is in a hollow state, and its function is to enable the heated fluid to be separated and dispersed in the electric heater. The function of the top box 6 is to elevate the heat-conducting medium 15 for storage, and it is also beneficial for the heat-conducting medium 15 to absorb heat when the electric heater is running, thereby facilitating the heat-conducting medium 15 to freely fall into the interior of the shell 4 under gravity to preheat the interior of the shell 4. The function of the bottom box 14 is to collect the heat-conducting medium 15 flowing into the shell 4, so as to facilitate the recycling of the heat-conducting medium 15.

[0025] Furthermore, a water pump 5 is fixedly installed on the top of the top box 6, a return pipe 8 is provided at the input end of the water pump 5, and the output end of the water pump 5 passes through the top of the top box 6. The function of the water pump 5 is to draw the heat-conducting medium 15 in the bottom box 14 back into the top box 6 through the return pipe 8, thereby realizing the recycling of the heat-conducting medium 15.

[0026] Furthermore, the bottom end of the return pipe 8 passes through a side wall of the bottom box 14, and the top box 6 is connected to the interior of the bottom box 14 through the return pipe 8, so that the heat-conducting medium 15 in the bottom box 14 can return to the top box 6, thereby facilitating the subsequent use of the heat-conducting medium 15.

[0027] Furthermore, a liquid outlet 17 is provided at the junction of the top box 6 and the top of the outer shell 4, and a liquid inlet 13 is provided at the junction of the bottom box 14 and the bottom of the outer shell 4. The liquid outlet 17 and the liquid inlet 13 allow the heat-conducting medium 15 to flow smoothly into the outer shell 4 and out of the inside of the outer shell 4, thereby realizing the preheating of the inner shell 4 by the heat-conducting medium 15.

[0028] Furthermore, solenoid valves 16 are installed on the top of the liquid inlet 13 and the liquid outlet 17. The top box 6 and the bottom box 14 are connected to the interior of the shell 4 through the liquid outlet 17 and the liquid inlet 13 respectively. The function of the solenoid valve 16 is to facilitate the control of the flow of the heat-conducting medium 15.

[0029] Furthermore, both sides of the bottom end of the hollow coil 10 are fixedly connected with a clamping strip 12, the hollow coil 10 is fixedly connected to the outer shell 4 through the clamping strip 12, the electric heating coil 11 is movably connected to the hollow coil 10, and the clamping strip 12 is fixed to the inner wall of the bottom of the outer shell 4, so that the hollow coil 10 can maintain better stability in the outer shell 4.

[0030] Furthermore, the liquid outlet pipe 7 passes through a side wall of the shell 4 and communicates with the interior of the hollow coil 10. The function of the liquid outlet pipe 7 is to enable the heated fluid in the hollow coil 10 to be discharged from the electric heater.

[0031] The method of using this embodiment is as follows: when using this insulated coiled fluid electric heater, you can first connect this electric heater to an external power supply, then pump the fluid to be heated into the liquid inlet pipe 3, so that the fluid flows along the liquid inlet pipe 3 into the transverse pipe 9, and then flows along the transverse pipe 9 into the hollow coil 10, then the power box 1 will energize the electric heating coil 11, so that the electric heating coil 11 starts to heat up, at this time the fluid in the hollow coil 10 will absorb the heat emitted by the heating coil while flowing along the hollow coil 10, and finally the fluid will be discharged from the hollow coil 10 connected to the hollow coil 10. The heat generated by the electric heating coil 11 will be concentrated and moved to the top box 6 on the top of the shell 4, so that the heat-conducting medium 15 inside the top box 6 is also heated. When the electric heater is interrupted and heating is performed again, the solenoid valve 16 of the liquid outlet 17 at the bottom of the top box 6 can be controlled to open first, so that the heat-conducting medium 15 with temperature in the top box 6 flows to the electric heating coil 11 and the hollow coil 10, and the interior of the shell 4 is preheated, so that the heating speed inside the shell 4 is accelerated, and the waiting time for the electric heater to heat up is shortened.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An insulated coil-type fluid electric heater, comprising a housing (4), characterized in that: The bottom ends of both sides of the shell (4) are fixedly connected to support plates (2), one end of the support plate (2) is fixedly mounted with a power box (1), a side wall of the power box (1) is electrically connected to an electric heating coil (11), a top end of the shell (4) is penetrated by a liquid inlet pipe (3), a bottom end of the liquid inlet pipe (3) is fixedly connected to a transverse pipe (9), a side wall of the transverse pipe (9) is penetrated by a hollow coil (10), a middle portion of the hollow coil (10) is fixedly connected to a liquid outlet pipe (7), a middle portion of the top end of the shell (4) is fixedly connected to a top box (6), the interior of the top box (6) is filled with a heat-conducting medium (15), and a middle portion of the bottom end of the shell (4) is fixedly connected to a bottom box (14).

2. The insulated coil-type fluid electric heater according to claim 1, characterized in that: A water pump (5) is fixedly mounted on the top of the top box (6), a return pipe (8) is provided at the input end of the water pump (5), and an output end of the water pump (5) passes through the top of the top box (6).

3. The insulated coil-type fluid electric heater according to claim 2, characterized in that: The bottom end of the return pipe (8) passes through a side wall of the bottom box (14), and the top box (6) is communicated with the interior of the bottom box (14) through the return pipe (8).

4. The insulated coil-type fluid electric heater according to claim 1, characterized in that: A liquid outlet (17) is provided at the junction of the top box (6) and the top of the shell (4), and a liquid inlet (13) is provided at the junction of the bottom box (14) and the bottom of the shell (4).

5. The insulated coil-type fluid electric heater according to claim 4, characterized in that: Solenoid valves (16) are installed on the top of the liquid inlet (13) and the liquid outlet (17), and the top box (6) and the bottom box (14) are communicated with the interior of the housing (4) through the liquid outlet (17) and the liquid inlet (13) respectively.

6. The insulated coil-type fluid electric heater according to claim 1, characterized in that: Both sides of the bottom end of the hollow coil (10) are fixedly connected with a clamping strip (12), the hollow coil (10) is fixedly connected to the shell (4) through the clamping strip (12), and the electric heating coil (11) is movably connected to the hollow coil (10).

7. The insulated coil-type fluid electric heater according to claim 1, characterized in that: The liquid outlet pipe (7) passes through a side wall of the outer shell (4), and the liquid outlet pipe (7) is communicated with the interior of the hollow coil (10).

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