Vertical falling film evaporator with multiple distributors

Abstract

The utility model relates to the technical field of evaporators, and discloses a vertical falling film evaporator with a plurality of distributors, which comprises a box body for protecting equipment, a filter screen is inserted into the left side of the top of the inner wall of the box body, a limiting groove is arranged on the left side of the inner wall of the box body, and the inner wall of the limiting groove is connected with the left side of the bottom of the filter screen through a limiting assembly. The top of the inner wall of the box body is fixedly connected with a collecting hopper used for collecting liquid, the top of the inner wall of the box body is fixedly connected with a flow dividing block, a plurality of flow dividing distributors are arranged on the periphery of the bottom of the flow dividing block, and the separated sides of the flow dividing distributors abut against the inner wall of the box body. According to the filter screen cleaning device, the fixing of the filter screen is relieved by dragging the dragging block, the filter screen is pulled out to be cleaned, the filter screen is inserted back after cleaning is completed, the dragging block is loosened, the limiting spring is not pressed any more, the limiting spring rebounds to drive the limiting insertion block to reset and be inserted into the filter screen to fix the filter screen, and therefore the filter screen is more convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a vertical falling film evaporator with multiple distributors. Background Art

[0002] As a highly efficient evaporation device, the falling film evaporator, with its unique advantages, has been widely used in fields such as petrochemicals, metallurgy, light industry, food processing, medicine, seawater desalination, and sewage treatment. The liquid to be evaporated enters the falling film evaporator's distribution chamber through its feed pipe and then flows into the heat exchange tubes. The liquid flows downward along the tube walls in a film-like manner, being evaporated and concentrated in the process.

[0003] Directly pouring raw materials into a falling film evaporator without filtering can lead to impurities contaminating the finished product. However, existing filtration devices are typically mounted directly on the falling film evaporator. Prolonged use without cleaning can contaminate subsequent products, and existing installation methods are inconvenient to clean. Furthermore, the falling film evaporator generates steam during operation, and prolonged accumulation of steam can reduce the final product concentration. Furthermore, the final product, collected in a collection tank, also generates steam due to the uncooled finished product, ultimately affecting the final product concentration. To address this technical issue, this application proposes a vertical falling film evaporator with multiple distributors. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a vertical falling film evaporator with multiple distributors. The filter screen is released by pulling the pulling block to fix the filter screen, and the filter screen is pulled out for cleaning. After cleaning, the filter screen is inserted back and the pulling block is released. The limit spring is no longer under pressure, and the limit spring rebounds to drive the limit plug block to reset and insert the filter screen to fix the filter screen, thereby making the cleaning of the filter screen more convenient.

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

[0006] A vertical falling film evaporator with multiple distributors includes a box body for protecting the equipment, a filter screen is inserted into the left side of the top of the inner wall of the box body, a limiting groove is provided on the left side of the inner wall of the box body, the inner wall of the limiting groove is connected to the left side of the bottom of the filter screen through a limiting component for fixing the filter screen, a collecting bucket for collecting liquid is fixedly connected to the top of the inner wall of the box body, a diversion block is fixedly connected to the top of the inner wall of the box body, a plurality of diversion flow distributors are arranged around the bottom of the diversion block, and the separated sides of the plurality of diversion flow distributors are all in contact with the inner wall of the box body, a bottom plate is slidably connected to the bottom of the inner wall of the box body, a heater that dissipates heat is fixedly connected to the top of the bottom plate, and two drain pipes are fixedly connected to the top of the bottom plate. The outer wall of the drain pipe passes through the bottom left side of the inner wall of the box, and the bottom left side of the box is fixedly connected to a collecting box, and the middle left side of the box is fixedly connected to an air pump, and the top input end of the air pump is fixedly connected to a first suction pipe, and the right end of the first suction pipe is fixedly connected to the left side of the box, and the bottom input end of the air pump is fixedly connected to a second suction pipe, and the bottom end of the second suction pipe is fixedly connected to the top of the collection box, and the left output end of the air pump is fixedly connected to an exhaust pipe, and the outer wall of the exhaust pipe is fixedly connected to a condenser, and the front side of the bottom of the box is rotatably connected to the bottom cover of the box, and the rear side of the bottom cover is connected to the bottom rear side of the box through a fixing assembly, so that the bottom cover of the box can be rotated when needed.

[0007] Furthermore, the limiting assembly includes a limiting plug slidably connected to the inner wall of the limiting groove, a plurality of limiting springs are arranged inside the limiting groove, a pulling block is slidably connected to the left side of the inner wall of the limiting groove, the right side of the pulling block is fixedly connected to the left bottom of the limiting plug, and the top of the limiting plug is plugged into the left side of the bottom of the filter.

[0008] Furthermore, one end of the limit spring is fixedly connected to the bottom of the inner wall of the limit groove, and the other end of the limit spring is fixedly connected to the bottom of the limit plug.

[0009] Furthermore, the fixing assembly includes a lock seat fixedly connected to the rear side of the box bottom cover, a lock piece is rotatably connected to the bottom of the rear side of the box body, and the outer wall of the lock seat passes through the rear and front sides of the lock seat.

[0010] Furthermore, the collecting hopper is located on the top of the diverter block.

[0011] Furthermore, the top of the box bottom cover abuts against the bottom of the base plate, and the right side of the condenser is fixedly connected to the left side of the exhaust fan.

[0012] Furthermore, a liquid inlet pipe is provided on the top of the box body.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the filter is released by pulling the pulling block, and the filter is pulled out for cleaning. After cleaning, the filter is inserted back and the pulling block is released. The limit spring is no longer compressed, and the limit spring rebounds to drive the limit plug to reset and insert the filter to fix the filter, thereby making the cleaning of the filter more convenient.

[0015] 2. In this utility model, a vacuum pump draws steam generated by heating the raw liquid through the first suction pipe. The more concentrated raw liquid flows to the bottom plate and then through the drain pipe to the collection box. Simultaneously, the vacuum pump draws hot air from the collection box through the second suction pipe. This hot air is ultimately discharged through the exhaust pipe. Simultaneously, a condenser condenses this hot air into water for discharge, preventing it from affecting the final product concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a vertical falling film evaporator with multiple distributors proposed in the present invention;

[0017] Figure 2 A schematic diagram of a heater for a vertical falling film evaporator with multiple distributors proposed in the present invention;

[0018] Figure 3 This is a schematic diagram of the exhaust pipe of the vertical falling film evaporator with multiple distributors proposed in the present invention;

[0019] Figure 4 This is a schematic diagram of the limit spring of the vertical falling film evaporator with multiple distributors proposed in the present invention;

[0020] Figure 5 This is a schematic diagram of the lock seat of the vertical falling film evaporator with multiple distributors proposed by the present invention.

[0021] Legend:

[0022] 1. Box body; 2. Box bottom cover; 3. Vacuum pump; 4. First suction pipe; 5. Second suction pipe; 6. Condenser; 7. Exhaust pipe; 8. Filter; 9. Pull block; 10. Collecting bucket; 11. Diverter block; 12. Diverter distributor; 13. Heater; 14. Bottom plate; 15. Drain pipe; 16. Limiting plug block; 17. Limiting spring; 18. Collecting box; 19. Locking plate; 20. Lock seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1 、 Figure 2 and Figure 4 The utility model provides an embodiment: a vertical falling film evaporator with multiple distributors, including a box body 1 for protecting the equipment, a filter screen 8 is inserted into the left side of the top inner wall of the box body 1, a limiting groove is provided on the left side of the inner wall of the box body 1, and the inner wall of the limiting groove is slidably connected to the limiting plug block 16, and multiple limiting springs 17 are arranged inside the limiting groove, one end of the limiting spring 17 is fixedly connected to the bottom of the inner wall of the limiting groove, and the other end of the limiting spring 17 is fixedly connected to the bottom of the limiting plug block 16, a pulling block 9 is slidably connected to the left side of the inner wall of the limiting groove, and the right side of the pulling block 9 is fixedly connected to the left bottom of the limiting plug block 16, and the top of the limiting plug block 16 is inserted into the left bottom of the filter screen 8 for fixing the filter screen 8, a collecting bucket 10 for collecting liquid is fixedly connected to the top of the inner wall of the box body 1, a diverter block 11 is fixedly connected to the top of the inner wall of the box body 1, and multiple diverter blocks 11 are arranged around the bottom of the diverter block 11. A flow distribution device 12 is provided, and the sides of the multiple flow distribution devices 12 are all in contact with the inner wall of the box body 1. The bottom of the inner wall of the box body 1 is slidably connected with a bottom plate 14. The top of the bottom plate 14 is fixedly connected with a heater 13 for emitting heat. Two drain pipes 15 are fixedly connected to the top of the bottom plate 14. The outer wall of the drain pipe 15 passes through the bottom left side of the inner wall of the box body 1. A collecting box 18 is fixedly connected to the bottom left side of the box body 1. The collecting bucket 10 is located at the top of the diverter block 11. A liquid inlet pipe is provided on the top of the box body 1. The top of the box bottom cover 2 is in contact with the bottom of the bottom plate 14. The right side of the condenser 6 is fixedly connected to the left side of the vacuum pump 3. The raw liquid to be processed is injected into the liquid inlet pipe at the top of the box body 1, filtered by the filter screen 8, and flows to the collecting bucket 10. The liquid collected by the collecting bucket 10 flows more evenly to the diverter block 11 and flows to the bottom around the diverter block 11, and is finally evenly distributed to the inner wall of the box body 1 by the second suction pipe 5. The bottom plate 14 is driven to heat the raw liquid, and the raw liquid with higher concentration flows to the bottom plate 14 and then flows through the drain pipe 15 to the collection box 18. When the filter 8 and the bottom plate 14 heater 13 need to be cleaned after long-term use, the pull block 9 is grasped to drive the limit plug 16 to slide downward. At the same time, the limit spring 17 is compressed to pull out the filter 8 for cleaning. After cleaning, the filter 8 is reinserted and the pull block 9 is released. The limit spring 17 is no longer compressed, and the limit spring 17 rebounds and drives the limit plug 16 to return to the filter 8 to secure the filter 8.

[0025] Reference Figure 3 and Figure 5The air in the air vent 3 is connected with the air inlet pipe 4 at the bottom of the air vent 3, and the air inlet pipe 4 is connected with the second air vent pipe 5 at the bottom of the air vent 3. Finally, these hot gases are discharged from exhaust pipe 7, and condenser 6 condenses these hot gases into water and discharges them simultaneously to prevent polluted air. Rotate locking plate 19 and remove it from lock base 20, rotate box bottom cover 2 and bottom plate 14 is taken off together with drain pipe 15 and heater 13.

[0026] Working Principle: The raw liquid to be processed is injected into the liquid inlet pipe at the top of the tank 1. It is filtered by the filter 8 and flows to the collection hopper 10. The more evenly collected liquid in the collection hopper 10 flows to the diverter block 11 and flows to the bottom of the diverter block 11, where it is finally evenly distributed to the inner wall of the tank 1 by the second intake pipe 5. The bottom plate 14 is driven to heat the raw liquid. The steam generated by the heating of the raw liquid is extracted by the vacuum pump 3 through the first intake pipe 4. The more concentrated raw liquid flows to the bottom plate 14 and flows through the drain pipe 15 to the collection tank 18. At the same time, the vacuum pump 3 extracts the hot air inside the collection tank 18 through the second intake pipe 5. Finally, this hot air is discharged through the exhaust pipe 7. At the same time, the condenser 6 condenses the hot air into water and discharges it, preventing air pollution. When the filter 8, bottom plate 14, and heater 13 need to be cleaned after extended use, turn the lock plate 19 to remove them from the lock seat 20. Then, turn the bottom cover 2 to remove the bottom plate 14, drain pipe 15, and heater 13. Grab the pulling block 9 to drive the limit plug 16 to slide down. At the same time, the limit spring 17 is compressed, and the filter screen 8 is pulled out for cleaning. After cleaning, the filter screen 8 is inserted back, and the pulling block 9 is released. The limit spring 17 is no longer compressed, and the limit spring 17 rebounds and drives the limit plug 16 to reset and insert the filter screen 8 to fix the filter screen 8.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Vertical falling film evaporator with multiple distributors, characterized in that: The invention comprises a box (1) for protecting equipment, wherein a filter screen (8) is inserted on the left side of the top of the inner wall of the box (1), a limiting groove is provided on the left side of the inner wall of the box (1), and the inner wall of the limiting groove is connected to the left side of the bottom of the filter screen (8) through a limiting component for fixing the filter screen (8), a collecting bucket (10) for collecting liquid is fixedly connected to the top of the inner wall of the box (1), a diversion block (11) is fixedly connected to the top of the inner wall of the box (1), and a plurality of diversion distributors (12) are arranged around the bottom of the diversion block (11), and the separated sides of the plurality of diversion distributors (12) are all in contact with the inner wall of the box (1), a bottom plate (14) is slidably connected to the bottom of the inner wall of the box (1), a heater (13) for emitting heat is fixedly connected to the top of the bottom plate (14), and two drainage pipes (15) are fixedly connected to the top of the bottom plate (14), and the drainage pipes (15) The outer wall passes through the bottom left side of the inner wall of the box body (1); the bottom left side of the box body (1) is fixedly connected to a collecting box (18); the middle left side of the box body (1) is fixedly connected to an exhaust fan (3); the top input end of the exhaust fan (3) is fixedly connected to a first suction pipe (4); the right end of the first suction pipe (4) is fixedly connected to the left side of the box body (1); the bottom input end of the exhaust fan (3) is fixedly connected to a second suction pipe (5); the bottom end of the second suction pipe (5) is fixedly connected to the top of the collecting box (18); the left output end of the exhaust fan (3) is fixedly connected to an exhaust pipe (7); the outer wall of the exhaust pipe (7) is fixedly connected to a condenser (6); the front side of the bottom of the box body (1) is rotatably connected to a box bottom cover (2); the rear side of the box bottom cover (2) is connected to the rear bottom of the box body (1) through a fixing assembly, so that the box bottom cover (2) can be rotated when it is needed.

2. The vertical falling film evaporator with multiple distributors according to claim 1, characterized in that: The limiting assembly comprises a limiting plug (16) slidably connected to the inner wall of the limiting groove, a plurality of limiting springs (17) are arranged inside the limiting groove, a pulling block (9) is slidably connected to the left side of the inner wall of the limiting groove, the right side of the pulling block (9) is fixedly connected to the left bottom of the limiting plug (16), and the top of the limiting plug (16) is plugged into the left bottom of the filter (8).

3. The vertical falling film evaporator with multiple distributors according to claim 2, characterized in that: One end of the limit spring (17) is fixedly connected to the bottom of the inner wall of the limit groove, and the other end of the limit spring (17) is fixedly connected to the bottom of the limit plug (16).

4. The vertical falling film evaporator with multiple distributors according to claim 1, characterized in that: The fixing assembly comprises a lock seat (20) fixedly connected to the rear side of the box bottom cover (2); a lock plate (19) is rotatably connected to the bottom of the rear side of the box body (1); and an outer wall of the lock seat (20) passes through the rear side and the front side of the lock seat (20).

5. The vertical falling film evaporator with multiple distributors according to claim 1, characterized in that: The collecting hopper (10) is located on the top of the diverter block (11).

6. The vertical falling film evaporator with multiple distributors according to claim 1, characterized in that: The top of the box bottom cover (2) abuts against the bottom of the bottom plate (14), and the right side of the condenser (6) is fixedly connected to the left side of the exhaust fan (3).

7. The vertical falling film evaporator with multiple distributors according to claim 1, characterized in that: A liquid inlet pipe is provided on the top of the box body (1).

Images