Whole house heating water heating type air return electric heater

Abstract

The utility model discloses a water heating type air return electric heater for heating a whole house. The water heating type air return electric heater comprises a base, a heating box body, an electric heating tube type heating body, a heat absorption tube and a table board. Heat absorption pipes in the heating box body are creatively adopted to wrap the heating body to form a heat energy conversion structure, and an air-water body gradient heat insulation barrier is formed in cooperation with an outer side anti-scalding cover. The radiator and the circulating pump are connected through the circulating pipeline to form a forced convection system, and hot water circulating heating is achieved. A water supplementing tank and a pressure release valve are arranged to automatically adjust system pressure, and a one-way check valve is arranged to ensure one-way flowing of water flow. According to the design, through multi-layer medium heat transfer and forced convection circulation, the risk that high-temperature components are exposed is effectively eliminated, uniform heating of the whole house is achieved, more heating functions are achieved, and safety and thermal comfort are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of electric heating table technology, specifically a water-cooled return air electric heater for whole-house heating. Background Technology

[0002] Traditional electric heating tables have significant technical drawbacks in winter heating applications:

[0003] First, existing products generally adopt an open heating structure or a simple metal cover isolation design, which lacks effective safety isolation between the heating component and the user's activity area, making it very easy to cause burn accidents, especially posing a serious safety hazard to children and people with mobility impairments;

[0004] Secondly, conventional electric heating tables mainly rely on localized radiant heat transfer, which has inherent defects such as low thermal efficiency and uneven heat distribution. This results in significant temperature gradient differences in the heating area, making it difficult to achieve uniform heating throughout the house. Users often need to sit close together to obtain effective heating, which seriously restricts the comfort and spatial applicability of the use. Utility Model Content

[0005] The purpose of this utility model is to provide a water-cooled return air electric heater for whole-house heating, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A water-cooled return air electric heater for whole-house heating includes a heating chamber, a heating element, and a heat-absorbing pipe. The heat-absorbing pipe surrounds the heating element on the inner side of the heating chamber. Furthermore, it also includes a scalding cover, which is disposed on the outer side of the heating chamber and spaced apart from the outer side of the heating chamber.

[0008] Furthermore, it also includes a radiator, a circulating pump, an outlet pipe, and a return pipe. One end of the outlet pipe is connected to the upper end of the heat absorption pipe, and the other end of the outlet pipe is connected to the lower end of the heat absorption pipe through the return pipe. The radiator and the circulating pump are installed on the circulating pipeline formed by the outlet pipe and the return pipe.

[0009] Furthermore, it also includes a water replenishment tank, which is connected to the circulation pipeline via a pipe.

[0010] Furthermore, it also includes a one-way check valve, which is installed on the circulation pipeline between the water storage chamber and the water replenishment tank, and the conduction direction of the one-way check valve is from the outlet pipe to the return pipe.

[0011] Furthermore, a pressure relief valve is included, which is installed on the pipeline between the water supply tanks.

[0012] Furthermore, it also includes a base and a tabletop, with the base located at the lower part of the heating chamber and the tabletop located at the upper part of the heating chamber.

[0013] Furthermore, the heating element is an electric heating tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention achieves dual safety protection and thermodynamic optimization through innovative structural design: 1) It adopts a heat conduction structure wrapped with heat-absorbing tubes, which converts the heat from the heating element into heat through a water medium, utilizing the high specific heat capacity of water to achieve the cyclical conversion and stable release of heat energy, fundamentally eliminating the risk of exposed high-temperature components; 2) It constructs a water circulation forced convection system, driving the directional flow of heated water in the radiator network through a circulation pump. Combined with the extended surface structure of the radiator, it converts traditional radiative heat transfer into a convection-radiation composite heat transfer mode, effectively breaking the local heat island effect; 3) The unique spacing layout of the anti-scalding cover and the heating box forms a gradient heat insulation barrier between air and water, attenuating the intensity of thermal radiation through multiple layers of media; 4) The pressure balancing system automatically maintains the optimal working pressure of the circulation pipeline through the synergistic action of the water tank and the pressure relief valve, ensuring the continuous stability of thermal convection efficiency. The overall solution reconstructs the heat transfer path at the physical level, achieving a dual improvement in safety and thermal comfort. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 for Figure 2 Sectional view at section line AA in the middle.

[0019] In the diagram: 1. Base; 2. Heating chamber; 3. Heating element; 4. Heat absorption tube; 5. Anti-scalding cover; 6. Water outlet pipe; 7. Water return pipe; 8. Radiator; 9. Circulation pump; 10. Water supply tank; 11. Countertop; 12. Pressure relief valve; 13. One-way check valve; 14. Drawer oven. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-3 As shown, this whole-house heating water-cooled return air electric heater includes a base 1, with a heating chamber 2 fixedly installed on top of the base 1. An electric heating element 3 is vertically installed at the center of the heating chamber 2. A heat-absorbing tube 4 is installed between the inner wall of the heating chamber 2 and the heating element 3, forming a heat energy conversion structure. The heat-absorbing tube 4 maintains a 20mm gap from the inner wall of the heating chamber 2 and the heating element 3, forming a heat energy conversion space. The heat-absorbing tube 4 can be of a spiral or wave-like structure.

[0022] A mesh anti-scalding cover 5 is coaxially fitted 20mm from the outside of the heating chamber. The anti-scalding cover 5 is fixedly connected to the base 1 via a bracket, and an annular air insulation layer is formed between the inner surface of the anti-scalding cover 5 and the outer surface of the heating chamber 2. The upper end of the heat absorption pipe 4 is connected to the water outlet pipe 6 via a flange joint, and the lower end is connected to the water return pipe 7 via a flange joint. The water outlet pipe 6 and the water return pipe 7 together form a circulation pipeline.

[0023] A plate radiator 8 and a circulation pump 9 are installed in series along the water flow direction on the circulation pipeline. The radiator 8 is installed on the far wall of the room, and the circulation pump 9 is a magnetically driven pump. At the highest point of the circulation pipeline, a water supply tank 10 is connected via a T-joint. A pressure relief valve 12 is installed at the bottom of the water supply tank 10. A one-way check valve 13 is installed on the riser section between the heat absorption pipe 4 and the water supply tank 10. The valve core direction limits the water flow to flow only from the outlet pipe 6 to the return pipe 7.

[0024] A platform 11 is bolted to the top of the heating chamber 2. The surface of the platform 11 has an annular groove for additional heating functions. During operation, the heating element 3 heats the heat absorption tube 4, raising the water temperature inside the heat absorption tube 4. The circulating pump 9 drives the hot water through the outlet pipe 6 into the radiator 8 to release heat. The cooling water then returns to the heat absorption tube 4 through the return pipe 7 for reheating, forming a continuous heat cycle. The water supply tank 10 automatically replenishes the water lost due to evaporation. When the system pressure exceeds the set value, the pressure relief valve 12 automatically opens to release pressure.

[0025] To provide storage space, a drawer oven 14 is also provided on the upper part of the heating element 2 inside the heating box 4 for baking items.

[0026] It should be noted that the above embodiments are only used to illustrate one feasible solution of this utility model and should not be regarded as a limitation on the protection scope of this utility model. Without departing from the spirit of this utility model, those skilled in the art can make substitutions or equivalent modifications to the above structural forms, and all such modifications should be regarded as falling within the protection scope of this utility model.

Claims

1. A water-cooled return air electric heater for whole-house heating, comprising a heating chamber (2), wherein a heating element (3) and a heat-absorbing pipe (4) are disposed within the heating chamber (2), characterized in that, The inner side of the heating box (2) is provided with a heat-absorbing pipe (4) surrounding the heating element (3).

2. The water-cooled return air electric heater for whole-house heating according to claim 1, characterized in that, It also includes a heat shield (5), which is disposed on the outside of the heating box (2) and is spaced apart from the outer side of the heating box (2).

3. The water-cooled return air electric heater for whole-house heating according to claim 1, characterized in that, It also includes a radiator (8), a circulation pump (9), an outlet pipe (6) and a return pipe (7). One end of the outlet pipe (6) is connected to the upper end of the heat absorption pipe (4), and the other end of the outlet pipe (6) is connected to the lower end of the heat absorption pipe (4) through the return pipe (7). The radiator (8) and the circulation pump (9) are arranged on the circulation pipeline formed by the outlet pipe (6) and the return pipe (7).

4. The water-cooled return air electric heater for whole-house heating according to claim 3, characterized in that, It also includes a water replenishment tank (10), which is connected to the circulation pipeline via a pipe.

5. The water-cooled return air electric heater for whole-house heating according to claim 4, characterized in that, It also includes a one-way check valve (13), which is installed on the circulation pipeline between the heat absorption pipe (4) and the water supply tank (10). The one-way check valve (13) is in the direction of flow from the outlet pipe (6) to the return pipe (7).

6. The water-cooled return air electric heater for whole-house heating according to claim 4, characterized in that, It also includes a pressure relief valve (12), which is installed on the pipeline between the water supply tank (10).

7. The water-cooled return air electric heater for whole-house heating according to claim 1, characterized in that, It also includes a base (1) and a table (11), wherein the base (1) is located at the lower part of the heating box (2) and the table (11) is located at the upper part of the heating box (2).

8. The water-cooled return air electric heater for whole-house heating according to claim 1, characterized in that, The heating element (3) is an electric heating tube.

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