CN213090124U - Electric heating boiler - Google Patents
Electric heating boiler Download PDFInfo
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- CN213090124U CN213090124U CN202021762862.5U CN202021762862U CN213090124U CN 213090124 U CN213090124 U CN 213090124U CN 202021762862 U CN202021762862 U CN 202021762862U CN 213090124 U CN213090124 U CN 213090124U
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- electric heating
- pipe
- water
- waste heat
- heating pipe
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Abstract
The utility model discloses an electric heating boiler, which comprises a heating unit, wherein the heating unit comprises an electric heating pipe and a waste heat recovery box, a water cavity is arranged inside the electric heating pipe, an electric heating body is arranged in the pipe wall of the electric heating pipe, and a plurality of through holes matched with the electric heating pipe are arranged on the waste heat recovery box; the water inlet of the electric heating pipe is communicated with the water return pipe, and the water outlet of the electric heating pipe is communicated with the water supply pipe; and the waste heat recovery tank is also provided with a waste heat water inlet communicated with the water return pipe and a waste heat water outlet communicated with the water supply pipe. The utility model discloses in the structure, be equivalent to heating pipe outside cover has been established one set of waste heat recovery case, can collect the produced not absorbed heat by the water in the logical water cavity of heating member to use after further absorbing, improved holistic thermal efficiency, simultaneously, also reduced to external heat dissipation, reduced the temperature in boiler place room, improved operating personnel's travelling comfort.
Description
Technical Field
The utility model belongs to the technical field of boiler structure, concretely relates to electric heating boiler.
Background
In the existing electric heating boiler, a structure of a heater arranged in a heating pipe is usually adopted, in order to pursue high power, the heating unit of the boiler generates large heat, the heat generated by the heating pipe and the like of the existing electric heating boiler cannot be completely absorbed and utilized, especially in a high-power boiler system, waste heat recovery is always a main problem restricting the development of the boiler, the waste heat recovery is incomplete, huge energy waste is caused, the lost heat is dissipated to the outside, the heat at positions such as a boiler room can be excessively concentrated, and the miniaturization arrangement of the boiler room is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric heating boiler to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: an electrically heated boiler, comprising a heating unit, characterized in that: the heating unit comprises an electric heating pipe and a waste heat recovery box, a water cavity is arranged in the electric heating pipe, an electric heating body is arranged in the pipe wall of the electric heating pipe, and a plurality of through holes matched with the electric heating pipe are formed in the waste heat recovery box;
the water inlet of the electric heating pipe is communicated with the water return pipe, and the water outlet of the electric heating pipe is communicated with the water supply pipe;
and the waste heat recovery tank is also provided with a waste heat water inlet communicated with the water return pipe and a waste heat water outlet communicated with the water supply pipe.
Further: the outer wall of the heating pipe is in a regular hexagon shape.
Further: the electric heating body is a resistance wire.
Further: the electric heating body is a PTC electric heating sheet.
The utility model has the advantages that: in the structure of the utility model, a set of waste heat recovery box is sleeved outside the heating pipe, so that the heat generated by the heating body and not absorbed by the water in the water through cavity can be collected and further absorbed for use, thereby improving the overall heat efficiency; meanwhile, the heat dissipation to the outside is reduced, the temperature of a room where the boiler is located is reduced, and the comfort of operators is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic partially cross-sectional view of the front view structure of FIG. 1;
fig. 3 is a sectional view taken along the line a in fig. 2.
The sequence numbers in the figures illustrate: 1. an electric heating tube; 2. a waste heat recovery tank; 3. a water through cavity; 4. an electric heater; 5. a through hole; 6. a water supply pipe; 7. a water return pipe; 8. a water inlet; 9. a water outlet; 10. a waste heat water inlet; 11. a waste heat water outlet; 12. a compensating hose.
Detailed Description
As shown in fig. 1-3, the electric heating boiler of the present invention has the same structure as the existing boiler, and comprises a heating unit, wherein the heating unit comprises an electric heating pipe 1 and a waste heat recovery box 2, a water cavity 3 is arranged inside the electric heating pipe, an electric heating body 4 is arranged in the pipe wall of the electric heating pipe, and a plurality of through holes 5 matched with the electric heating pipe are arranged on the waste heat recovery box; the water inlet 8 of the electric heating pipe is communicated with the water return pipe 6, and the water outlet 9 of the electric heating pipe is communicated with the water supply pipe 7; the waste heat recovery tank is also provided with a waste heat water inlet 10 communicated with the water return pipe and a waste heat water outlet 11 communicated with the water supply pipe.
Preferably: as shown in fig. 3, the heating pipe is circular for accommodating the resistance wire or regular hexagon for accommodating the PTC electric heating sheet, the through hole on the waste heat recovery tank is also corresponding circular or regular hexagon, the heating pipe is inserted into the through hole and is tightly matched, the gap is small, and the heating pipe can be fixed in the through hole by friction force; the electric heating body is embedded in the pipe wall of the heating pipe and can be arranged in two directions or a plurality of directions along the circumferential direction of the heating pipe, the electric heating body can be a resistance wire, is arranged in the pipe wall of the electric heating pipe in an insulating way, can also be a PTC electric heating sheet and is packaged in the pipe wall, and the specific arrangement method, the lead arrangement and the like of the electric heating body are the prior art in the field and are not described again; the heat generated by the electric heating body heats the water in the electric heating pipe, and the rest of the heat is absorbed by the water in the waste heat recovery tank through the wall of the through hole.
Preferably, a flow control valve is arranged at the waste heat water outlet to control the water inflow in the waste heat recovery tank and further control the temperature of the outlet.
Preferably, a compensation hose 12 is disposed between the water outlet of the heating pipe and the water supply pipe for compensating for dimensional changes caused by thermal expansion and contraction and displacement changes caused by vibration.
In the structure of the utility model, a set of waste heat recovery box is sleeved outside the heating pipe, so that the heat generated by the heating body and not absorbed by the water in the water through cavity can be collected and further absorbed for use, thereby improving the overall heat efficiency; meanwhile, the heat dissipation to the outside is reduced, the temperature of a room where the boiler is located is reduced, and the comfort of operators is improved.
Claims (4)
1. An electrically heated boiler, comprising a heating unit, characterized in that: the heating unit comprises an electric heating pipe and a waste heat recovery box, a water cavity is arranged in the electric heating pipe, an electric heating body is arranged in the pipe wall of the electric heating pipe, and a plurality of through holes matched with the electric heating pipe are formed in the waste heat recovery box;
the water inlet of the electric heating pipe is communicated with the water return pipe, and the water outlet of the electric heating pipe is communicated with the water supply pipe;
and the waste heat recovery tank is also provided with a waste heat water inlet communicated with the water return pipe and a waste heat water outlet communicated with the water supply pipe.
2. An electrically heated boiler according to claim 1, characterized in that: the outer wall of the heating pipe is in a regular hexagon shape.
3. An electrically heated boiler according to claim 1, characterized in that: the electric heating body is a resistance wire.
4. An electrically heated boiler according to claim 1, characterized in that: the electric heating body is a PTC electric heating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762862.5U CN213090124U (en) | 2020-08-21 | 2020-08-21 | Electric heating boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762862.5U CN213090124U (en) | 2020-08-21 | 2020-08-21 | Electric heating boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213090124U true CN213090124U (en) | 2021-04-30 |
Family
ID=75631254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021762862.5U Active CN213090124U (en) | 2020-08-21 | 2020-08-21 | Electric heating boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213090124U (en) |
-
2020
- 2020-08-21 CN CN202021762862.5U patent/CN213090124U/en active Active
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