Solar energy photothermal and energy storage device
By connecting solar thermal and energy storage devices to the boiler deaerator and utilizing valve control and an internal circulation system, the high energy consumption problem of the boiler deaerator is solved, achieving energy saving, consumption reduction, and efficient utilization of solar water heating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO ANHUI IND CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-03
AI Technical Summary
In the current cigarette production process, the boiler deaerator consumes a large amount of steam for heating water, resulting in high energy consumption, and the utilization of solar water heating is limited to a single method.
Design a solar thermal and energy storage device that connects a solar heat exchange system to a boiler deaerator. Selective hot water supply is achieved through valve control, and continuous heating is achieved by combining an internal circulation system to reduce steam consumption.
By increasing the inlet water temperature of the boiler deaerator, steam resource consumption is reduced, energy conservation and consumption reduction are achieved, and the utilization efficiency of solar water heating is improved.
Smart Images
Figure CN224454946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cigarette production equipment, and in particular to a solar thermal and energy storage device. Background Technology
[0002] In cigarette production, a semi-volumetric heat exchanger is used to exchange heat between solar-heated water and tap water via a water-to-water heat exchange process. The heated tap water is then used for some showers in the bathrooms. While the system performs well, its utilization is relatively limited, and there are still areas for further development. In contrast, heating soft water in a boiler via a deaerator consumes a large amount of steam, resulting in high energy consumption. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a solar thermal and energy storage device, so as to selectively use the hot water heated by solar energy as the feed water of the boiler deaerator, thereby increasing the feed water temperature of the boiler deaerator, reducing the steam used for heating the deaerator, and saving energy and reducing consumption.
[0004] This utility model is achieved through the following technical solution:
[0005] A solar thermal and energy storage device includes a solar heat exchange system, which comprises a solar heat exchanger and a hot water tank. The secondary inlet of the solar heat exchanger is connected to a cold water inlet pipe, and the secondary outlet of the solar heat exchanger is connected to the inlet of the hot water tank via an outlet pipe. The outlet of the hot water tank is connected to a main hot water pipe, and the end of the main hot water pipe is connected to two parallel hot water branch pipes. The end of the first hot water branch pipe is connected to the cold water inlet pipe near the inlet of the solar heat exchanger, and the second hot water branch pipe is connected to the deaerator inlet pipe. A first water pump is installed on the first hot water branch pipe, and a first valve is installed on the second hot water branch pipe. A second valve is installed upstream of the junction of the deaerator inlet pipe and the second hot water branch pipe.
[0006] As a preferred embodiment of the aforementioned solar thermal and energy storage device, the hot water tank is equipped with a temperature sensor and a liquid level sensor.
[0007] As a preferred embodiment of the aforementioned solar thermal and energy storage device, a third valve is provided upstream of the junction of the cold water inlet pipe and the first hot water branch pipe.
[0008] As a preferred embodiment of the aforementioned solar thermal and energy storage device, a fourth valve is provided on the water outlet pipe.
[0009] This invention has the following advantages over the prior art:
[0010] This utility model provides a solar thermal and energy storage device. By connecting the hot water tank in the solar heat exchange system to the deaerator's deaerator inlet pipe and adding corresponding valves for control, the hot water stored in the tank after being heated by solar energy can be selectively used as the boiler deaerator's feed water. This increases the boiler deaerator's feed water temperature, reduces the steam required for deaerator heating, significantly saves steam resources, and achieves energy conservation and consumption reduction. Furthermore, by adding a first hot water branch pipe equipped with a first water pump between the main hot water pipe at the hot water tank outlet and the cold water inlet pipe, the solar heat exchanger and the hot water tank achieve internal circulation, continuously heating the water stored in the tank and ensuring it reaches the set temperature before being supplied to the boiler deaerator. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is the electrical schematic diagram of the AI-02 analog input module of the PLC of this utility model.
[0013] Figure 3 This is the electrical schematic diagram of the digital input module DI-01 of the PLC of this utility model.
[0014] Figure 4 This is the electrical schematic diagram of the digital input module DI-02 of the PLC of this utility model.
[0015] Figure 5 This is the electrical schematic diagram of the digital output module DO-01 of the PLC of this utility model.
[0016] Figure 6 This is the electrical schematic diagram of the DO-02 digital output module of the PLC of this utility model.
[0017] The following numbers are labeled in the diagram: 1. Solar collector; 2. Solar heat exchanger; 3. Hot water tank; 4. Circulating liquid pipe; 5. Circulating water pump; 6. Temperature sensor; 7. Liquid level sensor; 8. Cold water inlet pipe; 9. Third valve; 10. Outlet pipe; 11. Fourth valve; 12. Main hot water pipe; 13. First hot water branch pipe; 14. Second hot water branch pipe; 15. Deaerator; 16. Deaerator inlet pipe; 17. First water pump; 18. First valve; 19. Second valve; 20. Soft water tank. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.
[0019] See Figure 1This embodiment discloses a solar thermal and energy storage device, including a solar heat exchange system. The solar heat exchange system includes a solar collector 1, a solar heat exchanger 2, and a hot water tank 3. The inlet and outlet of the circulating liquid of the solar heat exchanger 2 are connected to the solar collector 1 through circulating liquid pipes 4, and a circulating water pump 5 is installed on the circulating liquid pipes 4 to drive the circulating liquid to circulate between the solar collector 1 and the solar heat exchanger 2. A temperature sensor 6 and a liquid level sensor 7 are installed inside the hot water tank 3. The secondary side inlet of the solar heat exchanger 2 is connected to a cold water inlet pipe 8, and a third valve 9 is installed upstream of the junction of the cold water inlet pipe 8 and the first hot water branch pipe 13. The secondary side outlet of the solar heat exchanger 2 is connected to the inlet of the hot water tank 3 through an outlet pipe 10, and a fourth valve 11 is installed on the outlet pipe 10.
[0020] The outlet of the hot water tank 3 is connected to the main hot water pipe 12. The end of the main hot water pipe 12 is connected to two parallel hot water branch pipes. The end of the first hot water branch pipe 13 is connected to the cold water inlet pipe 8 near the inlet of the solar heat exchanger 2. The second hot water branch pipe 14 is connected to the deaerator inlet pipe 16 of the deaerator 15. The first hot water branch pipe 13 is equipped with a first water pump 17. The second hot water branch pipe 14 is equipped with a first valve 18. The deaerator inlet pipe 16 is equipped with a second valve 19 upstream of the junction with the second hot water branch pipe 14.
[0021] The solar collector 1 converts solar radiation into heat energy to heat the circulating fluid. Under the action of the circulating water pump 5, hot circulating fluid flows in the circulation pipe of the solar heat exchanger 2. In this embodiment, a first hot water branch pipe 13 equipped with a first water pump 17 is added between the main hot water pipe 12 at the outlet of the hot water tank 3 and the cold water inlet pipe 8, so that the solar heat exchanger 2 and the hot water tank 3 can achieve internal circulation and continuously heat the water stored in the hot water tank 3.
[0022] Among them, the first valve 18, the second valve 19, the third valve 9, and the fourth valve 11 are all electric valves. All valves, water pumps, temperature sensor 6, and level sensor 7 are controlled by a PLC system. The names, codes, models, and brands of the various components in the PLC system are shown in the table below:
[0023]
[0024] The electrical schematic diagram of the analog input module AI-02 is shown below. Figure 2 Temperature sensor 6 inside hot water tank 3 is connected to terminal 1 of AI-02 module, and liquid level sensor 7 inside hot water tank 3 is connected to terminal 3 of AI-02 module.
[0025] The electrical schematic diagram of the DI-01 digital input module is shown below. Figure 3 The electrical schematic diagram of the DI-02 digital input module can be found here. Figure 4The electrical schematic diagram of the digital output module DO-01 can be found here. Figure 5 The electrical schematic diagram of the digital output module DO-02 is shown below. Figure 6 The connection relationships between the four electric valves and the two water pumps and the above module are as follows:
[0026] The first valve 18 is connected to terminals 5 and 6 of the DI-01 module, which are used to detect the fully open and fully closed states of the first valve 18, respectively; the first valve 18 is also connected to terminal 3 of the DO-01 module, which is used to control the opening and closing of the first valve 18.
[0027] The second valve 19 is connected to terminals 7 and 8 of the DI-01 module, which are used to detect the fully open and fully closed states of the second valve 19, respectively; the second valve 19 is also connected to terminal 4 of the DO-01 module, which is used to control the opening and closing of the second valve 19.
[0028] The third valve 9 is connected to terminals 1 and 2 of the DI-02 module to detect the fully open and fully closed states of the third valve 9, respectively; the third valve 9 is also connected to terminal 5 of the DO-01 module to control the opening and closing of the third valve 9.
[0029] The fourth valve 11 is connected to terminals 1 and 2 of the DI-01 module, which are used to detect the fully open and fully closed states of the fourth valve 11, respectively; the fourth valve 11 is also connected to terminal 1 of the DO-01 module, which is used to control the opening and closing of the fourth valve 11.
[0030] The first water pump 17 is connected to terminals 5 and 6 of the DI-02 module, which are used to detect the operating status and faults of the first water pump 17, respectively; the first water pump 17 is also connected to terminal 1 of the DO-02 module, which is used to control the start and stop of the first water pump 17.
[0031] The circulating water pump 5 is connected to terminals 7 and 8 of the DI-02 module, which are used to detect the operating status and faults of the circulating water pump 5, respectively; the circulating water pump 5 is also connected to terminal 2 of the DO-02 module, which is used to control the start and stop of the circulating water pump 5.
[0032] In operation, turn on the solar heat exchanger 2 and the circulating water pump 5. After the circulating liquid is fully heated by the solar collector 1, open the third valve 9 to connect the cold water inlet pipe 8, and introduce cold water into the solar heat exchanger 2. The cold water displaces the heat from the circulating liquid, heating the cold water into hot water. Then, open the fourth valve 11, and the hot water enters the hot water tank 3 for storage. At this time, keep the first valve 18 closed and the second valve 19 open, connecting the soft water tank 20. The deaerator 15 receives its inlet water from the soft water tank 20. The temperature and water level in the hot water tank 3 are monitored in real time by the temperature sensor 6 and the level sensor 7.
[0033] When the water level and temperature of the hot water in the hot water tank 3 meet the conditions, open the first valve 18, close the second valve 19, disconnect the soft water tank 20, and connect the hot water tank 3. At this time, the water supply to the deaerator 15 is supplied by the hot water tank 3. Since the water in the hot water tank 3 is hot water that has reached the set temperature, the steam consumption of the deaerator 15 can be effectively saved.
[0034] When the temperature of the hot water in the hot water tank 3 does not reach the set temperature, the first valve 18 is closed, the second valve 19 is opened, the third valve 9 is closed, the first water pump 17 and the fourth valve 11 are turned on, and the water stored in the hot water tank 3 circulates through the solar heat exchanger 2 to continuously exchange heat, in preparation for the water to enter the deaerator 15.
[0035] When the water level in the storage tank does not reach the set water level, the first valve 18 is closed, the second valve 19 is opened, and the third valve 9 is opened to replenish the water in the storage tank. The first water pump 17 and the fourth valve 11 are also turned on. The water stored in the hot water tank 3 circulates through the solar heat exchanger 2 and continuously exchanges heat to prepare for the water intake of the deaerator 15.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A solar energy photothermal and energy storage device, comprising a solar heat exchange system, the solar heat exchange system comprising a solar heat exchanger, a hot water tank, a cold water inlet pipe connected to a water inlet of a secondary side of the solar heat exchanger, and an outlet pipe connected to an inlet of the hot water tank from a water outlet of the secondary side of the solar heat exchanger, characterized in that: The outlet of the hot water tank is connected to the main hot water pipe. The end of the main hot water pipe is connected to two parallel hot water branch pipes. The end of the first hot water branch pipe is connected to the cold water inlet pipe near the inlet of the solar heat exchanger. The second hot water branch pipe is connected to the deaerator inlet pipe. The first hot water branch pipe is equipped with a first water pump, and the second hot water branch pipe is equipped with a first valve. The deaerator inlet pipe is equipped with a second valve upstream of the junction with the second hot water branch pipe.
2. A solar energy thermal and storage device as claimed in claim 1 wherein: The hot water tank is equipped with a temperature sensor and a liquid level sensor.
3. The solar thermal and energy storage device as described in claim 1, characterized in that: The cold water inlet pipe is equipped with a third valve upstream of the junction with the first hot water branch pipe.
4. A solar energy thermal and storage device as claimed in claim 1, wherein: The water outlet pipe is equipped with a fourth valve.