Evaporation separator capable of rapidly descaling

Abstract

The utility model relates to a quick descaling evaporation separator, which comprises a primary vapor-liquid separation chamber and a crystallization separation chamber which are distributed up and down, the side wall of the crystallization separation chamber is provided with a circulating liquid inlet, a circulating liquid outlet and a material return port, the circulating liquid inlet and the circulating liquid outlet are both communicated with a heater, the bottom of the crystallization separation chamber is provided with a material discharge port, and the material discharge port is communicated with the heater. The discharge port is communicated with a chopping pump and a discharge pump through a three-way pipeline, and the chopping pump is communicated with the return port. When scale blocks are accumulated in the discharge port, materials are input into the chopping pump, the scale blocks in the materials are chopped through the chopping pump and conveyed back to the crystallization separation chamber, and the scrap-shaped scale blocks are discharged through the discharge pump, so that downstream equipment cannot be blocked, the safety is improved, the equipment does not need to be shut down and stopped in the scale block treatment process, the operation is convenient, and the production efficiency is improved. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of separators, in particular to a fast descaling evaporation separator. Background Art

[0002] Evaporation separators, also known as evaporators, are widely used in food processing, juice concentration, beverage production, dairy production, the chemical industry, the pharmaceutical industry, wastewater treatment, and environmental protection engineering. They are key equipment in evaporation and concentration processes. Evaporation separators thermally crystallize materials from supersaturated solutions, rapidly separating the solid and liquid phases. Existing evaporation separators are prone to scaling during evaporation, either in the separator or on the inner walls of the pipeline. This detached scale can clog the separator outlet and downstream equipment, posing a safety hazard. Clogged separator outlets require the entire system to be shut down to remove the accumulated scale, making cleaning difficult, inefficient, and impacting production efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an evaporation separator which reduces scaling and facilitates cleaning of scale blocks, thereby achieving rapid scaling removal and improving production safety and production efficiency.

[0004] The utility model is realized through the following technical scheme: a rapid descaling evaporation separator, comprising a primary vapor-liquid separation chamber and a crystallization separation chamber distributed up and down, wherein the side wall of the crystallization separation chamber is provided with a circulating liquid inlet, a circulating liquid outlet and a return material port, wherein the circulating liquid inlet and the circulating liquid outlet are both connected to a heater, and a discharge port is provided at the bottom of the crystallization separation chamber, wherein the discharge port is connected to a chopping pump and a discharge pump through a three-way pipeline, and the chopping pump is connected to the return material port.

[0005] In this solution, when scale blocks are shed and accumulated, the material is fed into a shredder pump, which shreds the scale blocks in the material and transports them back to the crystallization separation chamber. The debris-like scale blocks are then discharged through a discharge pump, which will not clog downstream equipment and improve safety. In addition, the scale block treatment process does not require equipment shutdown or production stoppage, and the operation is convenient, thereby achieving rapid scale block treatment and improving production efficiency.

[0006] As an optimization, the crystallization separation chamber includes a first straight cylinder section, a first conical cylinder section, a second straight cylinder section and a second conical cylinder section connected in sequence from top to bottom, the circulating liquid inlet is located on the first straight cylinder section, the circulating liquid outlet is located on the first conical cylinder section, the return material port is located on the second straight cylinder section, and the discharge port is located at the bottom of the second conical cylinder section.

[0007] As an optimization, the circulating liquid inlet is tangentially connected to the first straight cylinder section. In this optimization solution, the liquid enters tangentially through the circulating liquid inlet, forming a rotary motion flow, which fully mixes the materials and reduces the boiling degree. At the same time, the rotary motion flow can flush the inner wall, thereby reducing the occurrence of scaling.

[0008] As an optimization, the first straight section and the second straight section are both provided with a plurality of sight glasses. This optimization solution facilitates observation of the feed liquid level status of the circulating liquid inlet and the return material inlet through the sight glasses, and also facilitates observation of the internal scaling status.

[0009] As an optimization, an annular inner wall flushing pipe is provided in the first-stage vapor-liquid separation chamber. The inner wall flushing pipe is fixed to the inner wall of the first-stage vapor-liquid separation chamber. This optimization solution further flushes the inner wall through the flushing pipe to prevent the inner wall from scaling and falling off.

[0010] As an optimization, the top and side walls of the primary vapor-liquid separation chamber are respectively provided with an exhaust port and a water return port. The exhaust port is connected to a secondary vapor-liquid separator, the gas outlet of which is connected to a compressor, and the water outlet of which is connected to the water return port. In this optimized solution, evaporated steam undergoes initial vapor-liquid separation in the primary vapor-liquid separation chamber, then enters the secondary vapor-liquid separator through the exhaust port for further vapor-liquid separation. The separated gas enters the compressor for discharge, while the liquid flows back to the primary vapor-liquid separation chamber through the water return port for further separation, thereby improving the vapor-liquid separation rate.

[0011] As an optimization, the output end of the discharge pump is connected to a sedimentation tank. The material output by the discharge pump of this optimization solution is precipitated into crushed scale impurities through the sedimentation tank, further preventing impurities from entering subsequent equipment.

[0012] The beneficial effects of the present invention are as follows: the circulating liquid inlet of the evaporation separator of this solution is tangentially connected to the first straight cylindrical section, which can form a rotary motion flow to flush the inner wall, thereby reducing the formation of scale. A flushing pipe is provided inside, which further flushes the inner wall to prevent scale from growing and falling off the inner wall. When scale accumulates in the discharge port, the material is input into the chopping pump, which chops the scale in the material and transports it back to the crystallization separation chamber. The debris is then discharged by the discharge pump, which will not clog downstream equipment, thereby improving safety. In addition, the scale treatment process does not require equipment shutdown or production suspension, is easy to operate, has high descaling efficiency, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] As shown in the figure:

[0015] 1. Crystallization separation chamber, 2. Primary vapor-liquid separation chamber, 3. Circulating liquid inlet, 4. Circulating liquid outlet, 5. Return port, 6. Discharge port, 7. Sight glass, 8. First pipeline, 9. Second pipeline, 10. Three-way pipeline, 11. First straight cylinder section, 12. First conical cylinder section, 13. Second straight cylinder section, 14. Second conical cylinder section, 15. Chopping pump, 16. Discharge pump, 17. Electric control valve, 18. Sedimentation tank, 19. Heater, 21. Top cover, 22. Third straight cylinder section, 23. Third conical cylinder section, 24. Return water port, 25. Exhaust port, 26. Fifth pipeline, 27. Secondary vapor-liquid separator, 28. Sixth pipeline, 29. Compressor, 30. Seventh pipeline, 31. Inner wall flushing pipe, 32. Third pipeline, 33. Fourth pipeline. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0017] like Figure 1 As shown, a rapid descaling evaporation separator comprises a primary vapor-liquid separation chamber 2 and a crystallization separation chamber 1 distributed above and below, wherein the side wall of the crystallization separation chamber 1 is provided with a circulating liquid inlet 3, a circulating liquid outlet 4 and a return material port 5, and the bottom of the crystallization separation chamber 1 is provided with a discharge port 6.

[0018] The crystallization separation chamber 1 includes a first straight section 11, a first conical section 12, a second straight section 13, and a second conical section 14, which are connected in sequence from top to bottom. The circulating liquid inlet 3 is located on the first straight section 11, the circulating liquid outlet 4 is located on the first conical section 12, the return port 5 is located on the second straight section 13, and the discharge port 6 is located at the bottom of the second conical section 14.

[0019] The circulating liquid inlet 3 is tangentially connected to the first straight cylinder section 11. The material enters tangentially through the circulating liquid inlet to form a rotary motion flow, which fully mixes the material and reduces the boiling degree. At the same time, the rotary motion flow can flush the inner wall, thereby reducing scaling.

[0020] The circulating liquid inlet 3 and circulating liquid outlet 4 are both connected to heaters 19. In this embodiment, there are two heaters 19. The circulating liquid inlet 3 is connected to the output of one of the heaters 19 via a first pipeline 8. The input of the heater connected to the circulating liquid inlet is connected to the output of the material circulation pipeline. The circulating liquid outlet 4 is connected to the input of the other heater 19 via a second pipeline 9. The output of the heater connected to the circulating liquid outlet is connected to the input of the material circulation pipeline. The material circulation pipeline is a conventional configuration of existing evaporative separation systems. The material circulation pipeline realizes the circulation and transportation of the reaction materials within the evaporative separator, and the provision of two heaters improves the heating efficiency of the reaction materials.

[0021] The discharge port 6 is connected to a chopper pump 15 and a discharge pump 16 via a three-way pipe 10. The chopper pump 15 is connected to the return port 5. The discharge port 6 is connected to the inputs of the chopper pump 15 and the discharge pump 16. Both the chopper pump and the discharge pump are equipped with electronically controlled valves 17 to facilitate material flow control. The output of the chopper pump 15 is connected to the return port 5 via a third pipe 32. The output of the discharge pump 16 is connected to a settling tank 18 via a fourth pipe 33. This settling tank precipitates pulverized scale impurities, further preventing them from entering subsequent equipment.

[0022] The first straight section 11 and the second straight section 13 are both provided with a plurality of sight glasses 7. In this embodiment, three sight glasses 7 are evenly distributed from top to bottom on the first straight section 11, and one sight glass 7 is installed on the second straight section 13.

[0023] An exhaust port 25 and a water return port 24 are respectively provided on the top and side wall of the first-level vapor-liquid separation chamber 2. The exhaust port 25 is connected to a second-level vapor-liquid separator 27. The air outlet end of the second-level vapor-liquid separator 27 is connected to a compressor 29. The water outlet end of the second-level vapor-liquid separator 27 is connected to the water return port 24.

[0024] The primary vapor-liquid separation chamber 2 of this embodiment includes, sequentially from top to bottom, a top cover 21, a third straight section 22, and a third tapered section 23. The outer diameter of the third straight section 22 is smaller than that of the first straight section 11, and the third straight section 22 is connected to the first straight section 11 via the third tapered section 23. The exhaust port 25 is located on the top cover 21, and the water return port 24 is located on the third straight section 22.

[0025] The exhaust port 25 is connected to the input end of the secondary vapor-liquid separator 27 through the fifth pipeline 26, the gas outlet end of the secondary vapor-liquid separator 27 is connected to the input end of the compressor 29 through the sixth pipeline 28, and the water outlet end of the secondary vapor-liquid separator 27 is connected to the return water port 24 through the seventh pipeline 30.

[0026] An annular inner wall flushing pipe 31 is provided in the first-stage vapor-liquid separation chamber 2, and the inner wall flushing pipe 32 is fixedly mounted on the inner wall of the first-stage vapor-liquid separation chamber 2. The inner wall flushing pipe 31 of this embodiment is located at the lower portion of the third straight-cylinder section 22, and is fixed to the inner wall of the third straight-cylinder section via a support plate. The outer diameter of the inner wall flushing pipe 31 matches the inner diameter of the third straight-cylinder section 22, and the input end of the inner wall flushing pipe extends to the outside of the third straight-cylinder section. The flushing nozzle at the bottom of the inner wall flushing pipe is arranged facing the inner wall of the first straight-cylinder section. The inner wall flushing pipe further flushes the inner wall of the crystallization separation chamber to prevent scaling, growth, and shedding of the inner wall.

[0027] Working Principle: After the reaction material in the crystallization separation chamber 1 cools down, it enters the heater 19 through the circulating liquid outlet 4 for initial heating. After being treated in the material circulation pipeline and heated again, it returns to the crystallization separation chamber 1 through the circulating liquid inlet 3, thus achieving the recycling of the reaction material. During evaporation, the steam undergoes initial vapor-liquid separation in the primary vapor-liquid separation chamber 2, then enters the secondary vapor-liquid separator 27 through the exhaust port 25 for further vapor-liquid separation. The separated gas enters the compressor 29 for discharge, while the liquid flows back to the primary vapor-liquid separation chamber 2 through the return port 24 for further separation, thereby improving the vapor-liquid separation rate. When scale accumulates, the material is fed into the chopper pump 15, which shreds the scale in the material and transports it back to the crystallization separation chamber 1. The debris is then discharged by the discharge pump 16 and enters the sedimentation tank 18 for precipitation, which will not clog downstream equipment and improve safety.

[0028] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A rapid descaling evaporation separator, comprising a primary vapor-liquid separation chamber (2) and a crystallization separation chamber (1) arranged vertically, characterized in that: The side wall of the crystallization separation chamber (1) is provided with a circulating liquid inlet (3), a circulating liquid outlet (4) and a return material port (5), and the circulating liquid inlet (3) and the circulating liquid outlet (4) are both connected to a heater (19). A discharge port (6) is provided at the bottom of the crystallization separation chamber, and the discharge port is connected to a chopping pump (15) and a discharge pump (16) through a three-way pipeline (10), and the chopping pump is connected to the return material port (5).

2. The rapid descaling evaporation separator according to claim 1, characterized in that: The crystallization separation chamber (1) comprises a first straight cylinder section (11), a first conical cylinder section (12), a second straight cylinder section (13) and a second conical cylinder section (14) which are sequentially connected from top to bottom, wherein the circulating liquid inlet (3) is located on the first straight cylinder section (11), the circulating liquid outlet (4) is located on the first conical cylinder section (12), the return material port (5) is located on the second straight cylinder section (13), and the discharge port (6) is located at the bottom of the second conical cylinder section (14).

3. The rapid descaling evaporation separator according to claim 2, characterized in that: The circulating liquid inlet (3) is tangentially connected to the first straight cylindrical section (11).

4. The rapid descaling evaporation separator according to claim 2, characterized in that: A plurality of sight glasses (7) are provided on each of the first straight tube section (11) and the second straight tube section (13).

5. The rapid descaling evaporation separator according to claim 1, characterized in that: An annular inner wall flushing pipe (31) is provided in the first-stage vapor-liquid separation chamber (2), and the inner wall flushing pipe is fixedly mounted on the inner wall of the first-stage vapor-liquid separation chamber.

6. The rapid descaling evaporation separator according to claim 4, characterized in that: An exhaust port (25) and a water return port (24) are respectively provided on the top and side wall of the first-stage vapor-liquid separation chamber (2); the exhaust port (25) is connected to a second-stage vapor-liquid separator (27); the air outlet end of the second-stage vapor-liquid separator is connected to a compressor (29); and the water outlet end of the second-stage vapor-liquid separator is connected to the water return port (24).

7. The rapid descaling evaporation separator according to claim 1, characterized in that: The output end of the discharge pump (16) is connected to a sedimentation tank (18).

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