Recycling device for waste heat of circulating cooling water
By adopting an insulated shell, spiral connecting pipe and insulation layer design in the circulating cooling water waste heat recovery device, the problems of heat loss and insufficient heat exchange caused by poor pipe insulation are solved, and efficient heat recovery and utilization are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN CHENGAN THERMAL POWER CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-15
AI Technical Summary
Existing waste heat recovery devices suffer from poor insulation during pipeline transportation, leading to heat loss and insufficient heat exchange.
The design incorporates an insulated outer shell, spiral connecting pipes, and an insulation layer. The spiral connecting pipes are wound around the heating pipes, and insulation sleeves are fitted onto the liquid outlet pipes and connecting pipes to increase the contact area and improve insulation, preventing heat loss.
It improves heat absorption efficiency, ensures that heat is not lost during the transmission process, and achieves full heat recovery and utilization.
Smart Images
Figure CN224246802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste heat recovery devices, specifically a waste heat recovery device for circulating cooling water. Background Technology
[0002] To minimize coal consumption and improve the economic efficiency of coal-fired power units, it is necessary to utilize the waste heat of the units as much as possible. The circulating cooling water of the steam turbine is a complete waste heat of the coal-fired power unit, which is discharged into the atmosphere through the air-cooled tower or air-cooled island. This part has a huge amount of heat. Recovering and utilizing the waste heat in the circulating cooling water of the steam turbine can not only improve the efficiency of coal utilization, reduce coal consumption, and reduce the production costs of enterprises, but also promote the consumption of clean energy.
[0003] Currently, existing waste heat recovery devices suffer from heat loss during the heat recovery process due to poor insulation of pipelines, and there is also the problem of insufficient heat exchange.
[0004] Therefore, a waste heat recovery device for circulating cooling water is proposed to address the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a circulating cooling water waste heat recovery device, including a condenser. The air inlet of the condenser is connected to an air inlet pipe, and the water outlet of the condenser is connected to the liquid inlet of a heat pump through a liquid outlet pipe. The liquid outlet of the heat pump is connected to the upper right side of the insulation shell through a connecting pipe one. A spiral connecting pipe is provided inside the insulation shell, and a heating pipe is installed through the insulation shell. The spiral connecting pipe is wound around the heating pipe. The lower left side of the insulation shell is connected to one end of a circulating pump through a connecting pipe two, and the other end of the circulating pump is connected to the circulation port of the condenser through a connecting pipe three.
[0006] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0007] This utility model incorporates an insulated outer shell, a spiral connecting pipe, and an insulation layer. By winding the spiral connecting pipe around the heating pipe, the contact area between the spiral connecting pipe and the heating pipe is increased. Furthermore, the insulation layer provides insulation for the interior of the insulated outer shell, facilitating the heating pipe's full heat absorption.
[0008] This invention provides insulation sleeves for both the liquid outlet pipe and the connecting pipe, allowing the cooling water with residual heat from the condenser to be delivered. This ensures the insulation of the entire heat absorption process, prevents heat loss during transport, and improves heat absorption efficiency. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the external structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the internal structure of the heat-insulating shell of this utility model.
[0011] The reference numerals and names in the figure are as follows:
[0012] 1. Condenser; 2. Liquid outlet pipe; 3. Heat pump; 4. Connecting pipe one; 5. Insulation shell; 6. Heating pipe; 7. Insulation sleeve; 8. Connecting pipe two; 9. Circulation pump; 10. Connecting pipe three; 11. Air inlet pipe; 12. Spiral connecting pipe; 13. Insulation layer. Detailed Implementation
[0013] 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.
[0014] As attached Figure 1 , 2 As shown, the present invention provides a circulating cooling water waste heat recovery device, including a condenser 1. The air inlet of the condenser 1 is connected to the air inlet pipe 11. The water outlet of the condenser 1 is connected to the liquid inlet of the heat pump 3 through the liquid outlet pipe 2. The liquid outlet of the heat pump 3 is connected to the upper right side of the insulation shell 5 through the connecting pipe 4. The insulation shell 5 is provided with a spiral connecting pipe 12. The insulation shell 5 is provided with a heating pipe 6 running through it. The spiral connecting pipe 12 is wound around the heating pipe 6. The lower left side of the insulation shell 5 is connected to one end of the circulating pump 9 through the connecting pipe 8. The other end of the circulating pump 9 is connected to the circulation port of the condenser 1 through the connecting pipe 3 10.
[0015] Specifically, one end of the spiral connecting pipe 14 is integrally connected to the connecting pipe 4, and the other end of the spiral connecting pipe 14 is integrally connected to the connecting pipe 8.
[0016] Specifically, the heat-insulating outer shell 5 has an insulation layer 15 inside.
[0017] Specifically, both the liquid outlet pipe 2 and the connecting pipe 4 are fitted with heat-insulating sleeves 7.
[0018] Working principle: The condenser 1 sends the cooling water with residual heat to the heat pump 3 through the liquid outlet pipe 2. After being heated by the heat pump 3, the water is sent to the spiral connecting pipe 12 through the connecting pipe 4. Since the spiral connecting pipe 12 is wound around the heating pipe 6, the contact area between the spiral connecting pipe 12 and the heating pipe 6 is increased. The insulation layer 13 can insulate the inside of the insulation shell 6, which facilitates the heating pipe to fully absorb heat. The liquid outlet pipe 2 and the connecting pipe 4 are both fitted with insulation sleeves 7 to send out the cooling water with residual heat from the condenser 1, ensuring the insulation of the entire heat absorption process, preventing heat loss during the transportation process, and improving the heat absorption efficiency. After heat exchange, the cooling water is sent out through the connecting pipe 8. The circulation pump 9 starts to send the cooling water back to the condenser 1 through the connecting pipe 8 and the connecting pipe 10.
[0019] 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," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A circulating cooling water waste heat recovery device, comprising a condenser (1), characterized in that: The air inlet of the condenser (1) is connected to the air inlet pipe (11). The water outlet of the condenser (1) is connected to the liquid inlet of the heat pump (3) through the liquid outlet pipe (2). The liquid outlet of the heat pump (3) is connected to the upper right side of the insulation shell (5) through the connecting pipe one (4). The insulation shell (5) is provided with a spiral connecting pipe (12). The insulation shell (5) is provided with a heating pipe (6) running through it. The spiral connecting pipe (12) is wound around the heating pipe (6). The lower left side of the insulation shell (5) is connected to one end of the circulation pump (9) through the connecting pipe two (8). The other end of the circulation pump (9) is connected to the circulation port of the condenser (1) through the connecting pipe three (10).
2. The circulating cooling water waste heat recovery device according to claim 1, characterized in that: One end of the spiral connecting pipe (12) is integrally connected to the first connecting pipe (4), and the other end of the spiral connecting pipe (12) is integrally connected to the second connecting pipe (8).
3. The circulating cooling water waste heat recovery device according to claim 1, characterized in that: The heat-insulating outer shell (5) has an insulation layer (13) inside.
4. The circulating cooling water waste heat recovery device according to claim 1, characterized in that: Insulating sleeves (7) are fitted on both the liquid outlet pipe (2) and the connecting pipe (4).