Energy-saving vacuum evaporation concentration equipment

Abstract

The utility model discloses energy-saving vacuum evaporation and concentration equipment, which relates to the technical field of vacuum evaporation and concentration, aims to solve the problems that the existing vacuum concentration equipment has insufficiency in heat energy recycling and reutilization and the overall energy-saving property needs to be improved, and adopts the technical scheme that the energy-saving vacuum evaporation and concentration equipment comprises a first concentration tank, a second concentration tank and a third concentration tank, heat exchangers are arranged at the lower ends of the interiors of the first concentration tank, the second concentration tank and the third concentration tank, filter screens are fixedly mounted at the upper ends of the interiors of the first concentration tank, the second concentration tank and the third concentration tank, and a first gas guide pipe is fixedly mounted at the gas outlet end of the heat exchanger in the first concentration tank; the other end of the first gas guide pipe is communicated with the gas inlet end of the heat exchanger in the second concentration tank, and a second gas guide pipe is fixedly mounted at the gas outlet end of the heat exchanger in the second concentration tank. And the effects that the heat energy can be efficiently recycled and reused, and the overall energy-saving effect is high are achieved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum evaporation and concentration technology, and in particular to energy-saving vacuum evaporation and concentration equipment. Background Technology

[0002] Vacuum evaporation and concentration equipment is a device that evaporates water or other solvents under relatively low vacuum conditions, based on the principle that the boiling point of water decreases with pressure. During operation, the material to be concentrated enters the equipment, and in the vacuum environment, the solvent's boiling point decreases, causing it to rapidly boil and evaporate. The resulting secondary vapor is separated from the concentrate by a separator; the vapor can be further condensed and recovered, while the concentrate is discharged after reaching the desired concentration.

[0003] Existing vacuum concentration equipment has shortcomings in heat recovery and reuse, and its overall energy efficiency needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide an energy-saving vacuum evaporation and concentration equipment that can efficiently recover and reuse heat energy, resulting in a strong overall energy-saving effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An energy-saving vacuum evaporation and concentration device includes a first concentration tank, a second concentration tank, and a third concentration tank. Each of the three concentration tanks has a heat exchanger installed at its lower interior. Each of the three concentration tanks also has a filter screen fixedly installed at its upper interior. A first gas guide pipe is fixedly installed at the outlet of the heat exchanger inside the first concentration tank, and the other end of the first gas guide pipe is connected to the inlet of the heat exchanger inside the second concentration tank. A second gas guide pipe is fixedly installed at the outlet of the heat exchanger inside the second concentration tank, and the other end of the second gas guide pipe is connected to the inlet of the heat exchanger inside the third concentration tank. A fifth gas guide pipe is fixedly installed at the outlet of the heat exchanger inside the third concentration tank.

[0007] By adopting the above technical solution, heat exchange operations can be effectively carried out inside the first concentration tank, the second concentration tank, and the third concentration tank.

[0008] Furthermore, a sixth gas guide pipe is fixedly connected to the upper surface of the first concentration tank, and the other end of the sixth gas guide pipe is connected to the interior of the first gas guide pipe. A third gas guide pipe is fixedly connected to the upper surface of the second concentration tank, and the other end of the third gas guide pipe is connected to the interior of the second gas guide pipe. A fourth gas guide pipe is fixedly connected to the upper surface of the third concentration tank, and the other end of the fourth gas guide pipe is connected to the interior of the fifth gas guide pipe. A water circulation vacuum pump is installed in the pipelines of the third, fourth, and sixth gas guide pipes.

[0009] By adopting the above technical solution, it can be ensured that the water vapor inside the first concentration tank, the second concentration tank, and the third concentration tank can be effectively discharged.

[0010] Furthermore, a T-shaped pipe is fixedly connected to the middle position of the lower end face of the first concentration tank, the second concentration tank, and the third concentration tank.

[0011] By adopting the above technical solution, it is ensured that the liquid material can be effectively fed and discharged.

[0012] Furthermore, a discharge pipe is fixedly installed at the discharge end of the three-way pipe of the first concentration tank, a first guide pipe is fixedly installed at the feed end of the three-way pipe of the first concentration tank, the other end of the first guide pipe is connected to the discharge end of the three-way pipe of the second concentration tank, a second guide pipe is fixedly installed at the feed end of the three-way pipe of the second concentration tank, the other end of the second guide pipe is connected to the discharge end of the three-way pipe of the third concentration tank, and a feed pipe is fixedly installed at the feed end of the three-way pipe of the third concentration tank.

[0013] By adopting the above technical solution, the liquid can be sequentially introduced into the first concentration tank, the second concentration tank, and the third concentration tank.

[0014] Furthermore, a third conveying pump and a solenoid valve are fixedly installed in the feed pipe, a second conveying pump and a solenoid valve are fixedly installed in the second guide pipe, a first conveying pump and a solenoid valve are fixedly installed in the first guide pipe, and a solenoid valve is fixedly installed in the discharge pipe.

[0015] By adopting the above technical solution, effective material conveying and discharge operations can be achieved.

[0016] Furthermore, both the second and fifth air guide pipes are provided with a water outlet. The water outlet of the second air guide pipe is fixedly installed with a first collection tank, and the water outlet of the fifth air guide pipe is fixedly installed with a second collection tank.

[0017] By adopting the above technical solution, condensate can be effectively recovered.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] This invention allows the concentrated liquid to be introduced into three separate concentration tanks during operation: a first concentration tank, a second concentration tank, and a third concentration tank. Hot air is first introduced into the heat exchanger inside the first concentration tank, then through a first air guide pipe into the heat exchanger inside the second concentration tank. After heat exchange, the air then flows through the second air guide pipe into the heat exchanger inside the third concentration tank. This process effectively utilizes the heat from the incoming medium. Simultaneously, multiple water-circulating vacuum pumps are activated to create a vacuum inside the first, second, and third concentration tanks, enabling effective low-temperature concentration of the liquid. Water vapor from the first concentration tank flows through a sixth air guide pipe into the first air guide pipe, water vapor from the second concentration tank flows through a third air guide pipe into the second air guide pipe, and water vapor from the third concentration tank flows through a fourth air guide pipe into the fifth air guide pipe. This process reuses the water vapor inside the first and second concentration tanks, effectively improving overall energy efficiency. Attached Figure Description

[0020] Figure 1 This is a first-view perspective view of the three-dimensional structure of this utility model;

[0021] Figure 2 This is a second perspective view of the three-dimensional structure of this utility model;

[0022] Figure 3 This is a diagram of the internal structure of this utility model.

[0023] In the diagram: 1. First concentration tank; 2. Second concentration tank; 3. Third concentration tank; 4. Water circulation vacuum pump; 5. Heat exchanger; 6. Discharge pipe; 7. T-connector; 8. Solenoid valve; 9. First feed pipe; 10. First transfer pump; 11. Second feed pipe; 12. Second transfer pump; 13. First air guide pipe; 14. Second air guide pipe; 15. First collection tank; 16. Third air guide pipe; 17. Fourth air guide pipe; 18. Second collection tank; 19. Fifth air guide pipe; 20. Feed pipe; 21. Third transfer pump; 22. Filter screen; 23. Sixth air guide pipe. Detailed Implementation

[0024] The method of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 , Figure 2 , Figure 3An energy-saving vacuum evaporation and concentration device includes a first concentration tank 1, a second concentration tank 2, and a third concentration tank 3. Each of the three tanks has a heat exchanger 5 installed at its lower internal end. Each of the three tanks has a filter screen 22 fixedly installed at its upper internal end. A first gas guide pipe 13 is fixedly installed at the outlet of the heat exchanger 5 inside the first concentration tank 1. The other end of the first gas guide pipe 13 is connected to the inlet of the heat exchanger 5 inside the second concentration tank 2. A second gas guide pipe 14 is fixedly installed at the outlet of the heat exchanger 5 inside the second concentration tank 2. The other end of 14 is connected to the inlet end of the heat exchanger 5 inside the third concentration tank 3. A fifth gas guide pipe 19 is fixedly installed at the outlet end of the heat exchanger 5 inside the third concentration tank 3. A sixth gas guide pipe 23 is fixedly connected to the upper surface of the first concentration tank 1. The other end of the sixth gas guide pipe 23 is connected to the interior of the first gas guide pipe 13. A third gas guide pipe 16 is fixedly connected to the upper surface of the second concentration tank 2. The other end of the third gas guide pipe 16 is connected to the interior of the second gas guide pipe 14. A fourth gas guide pipe 17 is fixedly connected to the upper surface of the third concentration tank 3. The other end of the fourth gas guide pipe 17 is connected to the interior of the fifth gas guide pipe 19. Water-circulating vacuum pumps 4 are installed in the pipes 16, 17, and 23. During operation, the liquid to be concentrated is introduced into the first concentration tank 1, the second concentration tank 2, and the third concentration tank 3, respectively. Hot air is first introduced into the heat exchanger 5 inside the first concentration tank 1, then through the first air pipe 13 into the heat exchanger 5 inside the second concentration tank 2. After heat exchange, it enters the heat exchanger 5 inside the third concentration tank 3 through the second air pipe 14. This process effectively utilizes the heat of the incoming medium. Simultaneously, multiple water-circulating vacuum pumps are activated. The vacuum pump 4 can perform a vacuum operation on the inside of the first concentration tank 1, the second concentration tank 2, and the third concentration tank 3, so that the liquid can be effectively concentrated at low temperature. The water vapor in the first concentration tank 1 enters the inside of the first air guide pipe 13 through the sixth air guide pipe 23, the water vapor in the second concentration tank 2 enters the inside of the second air guide pipe 14 through the third air guide pipe 16, and the water vapor in the third concentration tank 3 enters the inside of the fifth air guide pipe 19 through the fourth air guide pipe 17. This can reuse the water vapor inside the first concentration tank 1 and the second concentration tank 2, and the overall energy-saving performance is effectively improved.

[0026] Reference Figure 1 , Figure 3A three-way pipe 7 is fixedly connected to the middle position of the lower end face of the first concentration tank 1, the second concentration tank 2, and the third concentration tank 3. A discharge pipe 6 is fixedly installed at the discharge end of the three-way pipe 7 of the first concentration tank 1. A first guide pipe 9 is fixedly installed at the feed end of the three-way pipe 7 of the first concentration tank 1, and the other end of the first guide pipe 9 is connected to the discharge end of the three-way pipe 7 of the second concentration tank 2. A second guide pipe 11 is fixedly installed at the feed end of the three-way pipe 7 of the second concentration tank 2, and the other end of the second guide pipe 11 is connected to the discharge end of the three-way pipe 7 of the third concentration tank 3. A feed pipe 20 is fixedly installed at the feed end of the three-way pipe 7 of the third concentration tank 3. A third conveying pump 21 and a solenoid valve 8 are fixedly installed in the feed pipe 20. A third conveying pump 21 and a solenoid valve 8 are fixedly installed in the second guide pipe 11. The second transfer pump 12 and the solenoid valve 8 are fixedly installed in the pipeline of the first feed pipe 9 and the discharge pipe 6. After the liquid in the first concentration tank 1 is concentrated, the solenoid valve 8 on the discharge pipe 6 can be opened to effectively discharge the liquid in the first concentration tank 1 from the discharge pipe 6. Then, the solenoid valves 8 on the first feed pipe 9 and the second feed pipe 11 are opened, and the first transfer pump 10 and the second transfer pump 12 are started. At this time, the liquid in the second concentration tank 2 can be effectively transferred to the first concentration tank 1, and the liquid in the third concentration tank 3 can be transferred to the interior of the second concentration tank 2, so that the liquid to be concentrated can be gradually heated to ensure that the specified concentration can be achieved.

[0027] Reference Figure 1 , Figure 2 Both the second air duct 14 and the fifth air duct 19 are equipped with water outlets. The water outlet of the second air duct 14 is fixedly installed with a first collection tank 15, and the water outlet of the fifth air duct 19 is fixedly installed with a second collection tank 18. The first collection tank 15 can be used to recover the condensate discharged from the second air duct 14, and the second collection tank 18 can be used to recover the condensate discharged from the fifth air duct 19, ensuring that the heat transfer medium gas can flow effectively.

[0028] Working Principle: In use, the equipment is first installed in the designated location. Then, the liquid to be concentrated is introduced into the first concentration tank 1, the second concentration tank 2, and the third concentration tank 3, respectively. Hot air is first introduced into the heat exchanger 5 inside the first concentration tank 1, and then through the first air guide pipe 13 into the heat exchanger 5 inside the second concentration tank 2. After heat exchange, the air then enters the heat exchanger 5 inside the third concentration tank 3 through the second air guide pipe 14. This process effectively utilizes the heat of the incoming heat medium. Simultaneously, multiple water circulation vacuum pumps 4 are activated, creating a vacuum inside the first, second, and third concentration tanks, allowing for effective low-temperature concentration of the liquid. Water vapor in the first concentration tank 1 enters the first air guide pipe 13 through the sixth air guide pipe 23, and water vapor in the second concentration tank 2 enters the second air guide pipe 14 through the third air guide pipe 16. Water vapor in the third concentration tank 3... Steam enters the interior of the fifth gas pipe 19 through the fourth gas pipe 17. This allows for the reuse of water vapor inside the first concentration tank 1 and the second concentration tank 2. After the liquid in the first concentration tank 1 is concentrated, the solenoid valve 8 on the discharge pipe 6 is opened. This effectively discharges the liquid in the first concentration tank 1 from the discharge pipe 6. Then, the solenoid valves 8 on the first and second gas pipes 9 and 11 are opened, and the first and second transfer pumps 10 and 12 are started. At this time, the liquid in the second concentration tank 2 is effectively transferred to the first concentration tank 1, and the liquid in the third concentration tank 3 is transferred to the interior of the second concentration tank 2. This allows the liquid to be concentrated to gradually heat up, ensuring that the specified concentration is achieved. During the entire concentration process, the condensate discharged from the second gas pipe 14 can be recovered using the first collection tank 15, and the condensate discharged from the fifth gas pipe 19 can be recovered using the second collection tank 18, ensuring that the heat transfer medium gas can flow effectively.

[0029] The specific real-time examples described herein are preferred real-time examples of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. Energy-saving vacuum evaporation concentration equipment, comprising a first concentration tank (1), a second concentration tank (2), and a third concentration tank (3), characterized in that: The lower end of the first, second and third condensation tanks (1, 2, 3) is provided with a heat exchanger (5), and the upper end of the first, second and third condensation tanks (1, 2, 3) is fixedly provided with a filter screen (22); the gas outlet end of the heat exchanger (5) in the first condensation tank (1) is fixedly provided with a first gas guide pipe (13), the other end of the first gas guide pipe (13) is communicated with the gas inlet end of the heat exchanger (5) in the second condensation tank (2), the gas outlet end of the heat exchanger (5) in the second condensation tank (2) is fixedly provided with a second gas guide pipe (14), the other end of the second gas guide pipe (14) is communicated with the gas inlet end of the heat exchanger (5) in the third condensation tank (3), and the gas outlet end of the heat exchanger (5) in the third condensation tank (3) is fixedly provided with a fifth gas guide pipe (19).

2. The energy efficient vacuum evaporation concentration apparatus as claimed in claim 1, wherein: The upper end surface of the first condensation tank (1) is fixedly connected with a sixth gas guide pipe (23), the other end of the sixth gas guide pipe (23) is communicated with the inside of the first gas guide pipe (13), the upper end surface of the second condensation tank (2) is fixedly connected with a third gas guide pipe (16), the other end of the third gas guide pipe (16) is communicated with the inside of the second gas guide pipe (14), the upper end surface of the third condensation tank (3) is fixedly connected with a fourth gas guide pipe (17), the other end of the fourth gas guide pipe (17) is communicated with the inside of the fifth gas guide pipe (19), and the pipelines of the third, fourth and sixth gas guide pipes (16, 17, 23) are all provided with a water circulation vacuum pump (4).

3. The energy efficient vacuum evaporation concentration apparatus as claimed in claim 1, wherein: The middle position of the lower end surface of the first, second and third condensation tanks (1, 2, 3) is fixedly connected with a three-way pipe (7).

4. The energy efficient vacuum evaporation concentration apparatus as claimed in claim 3, wherein: The discharge end of the three-way pipe (7) of the first condensation tank (1) is fixedly provided with a discharge pipe (6), the feeding end of the three-way pipe (7) of the first condensation tank (1) is fixedly provided with a first material guide pipe (9), the other end of the first material guide pipe (9) is communicated with the discharge end of the three-way pipe (7) of the second condensation tank (2), the feeding end of the three-way pipe (7) of the second condensation tank (2) is fixedly provided with a second material guide pipe (11), the other end of the second material guide pipe (11) is communicated with the discharge end of the three-way pipe (7) of the third condensation tank (3), and the feeding end of the three-way pipe (7) of the third condensation tank (3) is fixedly provided with a feeding pipe (20).

5. The energy efficient vacuum evaporation concentration apparatus as claimed in claim 4, wherein: The pipeline of the feeding pipe (20) is fixedly provided with a third conveying pump (21) and an electromagnetic valve (8), the pipeline of the second material guide pipe (11) is fixedly provided with a second conveying pump (12) and an electromagnetic valve (8), the pipeline of the first material guide pipe (9) is fixedly provided with a first conveying pump (10) and an electromagnetic valve (8), and the pipeline of the discharge pipe (6) is fixedly provided with an electromagnetic valve (8).

6. The energy efficient vacuum evaporation concentration apparatus as claimed in claim 1, wherein: The second gas guide pipe (14) and the fifth gas guide pipe (19) are both provided with a water outlet end, the water outlet end of the second gas guide pipe (14) is fixedly provided with a first collection tank (15), and the water outlet end of the fifth gas guide pipe (19) is fixedly provided with a second collection tank (18).

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