Secondary heating circuit for coil heating
By using a two-stage heating pipeline design with coil heating, heat energy can be utilized in a secondary manner through heat pumps and control valves. This solves the problem that traditional heating pipelines cannot meet the requirements for energy saving and consumption reduction, and achieves energy saving, consumption reduction and cost reduction in electroplating equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI HUANENG SURFACE TREATMENT
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional single-stage heating pipe structures cannot meet the energy-saving and consumption-reducing requirements of electroplating equipment, leading to increased operating costs.
The two-stage heating pipeline design, which employs coil heating, includes a combination of a heat pump, an outlet main pipe, a transition guide pipe, and a return main pipe. Through the control of electric proportional valves and ball valves, it achieves secondary utilization of thermal energy.
It improves the utilization rate of waste hot water, meets the market's demand for energy conservation and emission reduction, and reduces the operating cost of equipment.
Smart Images
Figure CN224280507U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of phosphating heating tube technology, and relates to a two-stage heating pipeline for coil heating. Background Technology
[0002] With economic development, the demand for coil heating has expanded to various electroplating equipment. For example... Figure 1 As shown, traditional coil heating pipelines employ a single-stage heating pipeline design, which can meet the heating needs of liquids in electroplating tanks. However, with the increasing market demand for energy conservation and emission reduction, users are increasingly demanding secondary utilization of wastewater in the single-stage heating pipeline. The traditional single-stage heating pipeline design can no longer meet these energy conservation and emission reduction requirements, and it also increases costs for users. Summary of the Invention
[0003] To address the aforementioned problems, this utility model provides a two-stage heating pipeline with coil heating, which can meet the energy-saving and consumption-reducing requirements of electroplating equipment, while also reducing the operating costs for equipment users.
[0004] According to the technical solution of this utility model: a two-stage heating pipeline with coil heating, characterized in that: it includes a heat pump, the first interface of the heat pump is connected to the main water outlet pipe, the main water outlet pipe is connected to the transition guide pipe, and the second interface of the heat pump is connected to the main water return pipe;
[0005] The main outlet pipe is connected to several branch outlet pipes. Each branch outlet pipe is connected to the inlet of a medium-temperature tank. The outlet of each medium-temperature tank is connected to a transition guide pipe through a first return water branch pipe.
[0006] The transition guide pipe is also connected to the inlet of the low-temperature tank through a transition guide branch pipe, and the outlet of the low-temperature tank is connected to the return water main pipe.
[0007] As a further improvement of this utility model, the low-temperature tank is connected to the main return water pipe through a second return water branch pipe, and a return water ball valve and an air-opening angle seat valve are installed on the second return water branch pipe.
[0008] As a further improvement of this utility model, a first electric proportional valve is installed on each of the water outlet branch pipes, and a first ball valve is respectively installed on the water outlet branch pipe and the first return water branch pipe.
[0009] As a further improvement of this utility model, the main return water pipe and the transition guide pipe are connected by a connecting conduit, and a second electric proportional valve and a second ball valve are installed on the connecting conduit.
[0010] As a further improvement of this utility model, a third electric proportional valve and a third ball valve are installed on the tube body of the transition guide pipe near the heat pump.
[0011] As a further improvement of this utility model, a filter and a fourth ball valve are installed on the end of the water outlet pipe near the heat pump.
[0012] The technical advantages of this invention are as follows: it improves the utilization rate of waste hot water; meets market demands; and features a compact overall design, reducing operating costs. In practical applications, it meets the energy-saving and consumption-reducing requirements of electroplating equipment while lowering operating costs for users. Attached Figure Description
[0013] Figure 1 A schematic diagram of the existing coil heating primary heating pipeline structure.
[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0017] Figure 2 The system includes a heat pump 1, a main outlet water pipe 2, a filter 3, an air-operated angle seat valve 4, a first ball valve 5, a first electric proportional valve 6, a medium-temperature tank 7, a low-temperature tank 8, a transition guide pipe 9, a main return water pipe 10, an outlet branch pipe 11, a first return water branch pipe 12, a transition guide branch pipe 13, a second return water branch pipe 14, a connecting conduit 15, a second electric proportional valve 16, a second ball valve 17, a third electric proportional valve 18, a third ball valve 19, and a fourth ball valve 20.
[0018] like Figure 2 As shown, this utility model is a two-stage heating pipeline with coil heating, including a heat pump 1, the first interface of the heat pump 1 is connected to the water outlet main pipe 2, the water outlet main pipe 2 is connected to the transition guide pipe 9, and the second interface of the heat pump 1 is connected to the return water main pipe 10.
[0019] The main water outlet 2 is connected to several branch water outlet pipes 11. Each branch water outlet pipe 11 is connected to the inlet of a medium-temperature tank 7. The outlet of each medium-temperature tank 7 is connected to the transition guide pipe 9 through a first return water branch pipe 12.
[0020] The transition guide pipe 9 is also connected to the inlet of the low-temperature tank 8 via the transition guide branch pipe 13, and the outlet of the low-temperature tank 8 is connected to the return water main pipe 10. In actual production practice, the medium-temperature tank 7 is a phosphating tank, and the low-temperature tank 8 is an activation tank.
[0021] The low-temperature tank 8 is connected to the main return water pipe 10 through the second return water branch pipe 14. The second return water branch pipe 14 is equipped with a return water ball valve and an air-opening angle seat valve 4.
[0022] A filter 3 and a fourth ball valve 20 are installed on the end of the water outlet pipe 2 near the heat pump 1.
[0023] Each of the outlet branch pipes 11 is equipped with a first electric proportional valve 6, and a first ball valve 5 is provided on each of the outlet branch pipes 11 and the first return branch pipe 12.
[0024] The return water main pipe 10 and the transition guide pipe 9 are connected by a connecting conduit 15, on which a second electric proportional valve 16 and a second ball valve 17 are installed.
[0025] A third electric proportional valve 18 and a third ball valve 19 are installed on the end of the transition guide pipe 9 near the heat pump 1.
[0026] The first electric proportional valve 6, the second electric proportional valve 16, and the third electric proportional valve 18 can fully utilize the thermal energy of the heat medium, while the first ball valve 5, the second ball valve 17, the third ball valve 19, and the fourth ball valve 20 facilitate maintenance.
[0027] like Figure 2 As shown, when this utility model is in operation, the heat medium comes out of the heat pump 1, first passes through the filter 3, and then enters the medium-temperature tank 7 that needs to be heated through the main water outlet 2 and the branch water outlet 11. After coming out of the medium-temperature tank 7, it enters the transition guide pipe 9 through the first return water branch pipe 12, and then enters the low-temperature tank 8 through the transition guide pipe 13. Finally, it flows back to the circuit pipe of the heat pump 10 through the return water main pipe 10 from the outlet of the low-temperature tank 8.
[0028] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A two-stage heated tube circuit with coil heating, characterized in that: Includes a heat pump (1), the first interface of the heat pump (1) is connected to the outlet water pipe (2), the outlet water pipe (2) is connected to the transition guide pipe (9), and the second interface of the heat pump (1) is connected to the return water pipe (10). The main outlet pipe (2) is connected to several outlet branch pipes (11), each outlet branch pipe (11) is connected to the inlet of a medium temperature tank (7), and the outlet of each medium temperature tank (7) is connected to the transition guide pipe (9) through a first return water branch pipe (12). The transition guide pipe (9) is also connected to the inlet of the low temperature tank (8) through the transition guide branch pipe (13), and the outlet of the low temperature tank (8) is connected to the return water main pipe (10).
2. The coil heated secondary heating line of claim 1 wherein: The low-temperature tank (8) is connected to the main return water pipe (10) through the second return water branch pipe (14), and a return water ball valve and an air-opening angle seat valve (4) are installed on the second return water branch pipe (14).
3. The coil heated secondary heat exchanger line of claim 1 wherein: Each of the outlet branch pipes (11) is equipped with a first electric proportional valve (6), and a first ball valve (5) is provided on each of the outlet branch pipes (11) and the first return branch pipe (12).
4. The coil heated secondary heating line of claim 3 wherein: The return water main (10) and the transition guide pipe (9) are connected by a connecting conduit (15), and a second electric proportional valve (16) and a second ball valve (17) are installed on the connecting conduit (15).
5. The coil heated secondary heated tube line of claim 1 wherein: The transition guide pipe (9) is equipped with a third electric proportional valve (18) and a third ball valve (19) on the pipe body near the heat pump (1).
6. The secondary heating pipeline for coil heating as described in claim 2, characterized in that: A filter (3) and a fourth ball valve (20) are installed on the end of the water outlet pipe (2) near the heat pump (1).