A crystallizer liquid level efficient adjusting device

Abstract

The utility model discloses a kind of crystallizer liquid level efficient regulating devices, it is related to crystallizer equipment technical field, aiming at the problems of low regulating precision, response lag, poor sealing, low adaptability in prior art, present and propose the following scheme, including mounting mechanism, the mounting mechanism includes mounting disc, water inlet pipe that is inserted and movable in mounting disc top, sleeve ring that is fixedly sleeved in water inlet pipe top end, first fixed block that is respectively welded and fixed in the annular outer wall two sides of sleeve ring, push rod motor and telescopic rod respectively fixed in the bottom of two first fixed blocks.The utility model is accurate and fast, crystallization stability is high, through the feedback of floater and the cooperation of motor drive, solve the problem of low precision and slow response of traditional device, floater and piston directly perceive liquid level change, cooperate with the real-time monitoring of liquid level sensor, crystallization product granularity uniformity deviation reduces, purity improves, overflow and dry burning accident rate reduces, production continuity is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of crystallizer equipment technology, and in particular to a high-efficiency crystallizer liquid level adjustment device. Background Technology

[0002] The high-efficiency liquid level regulation device for crystallizers is a core auxiliary equipment. Its core function is to automatically adjust the inlet water flow or outlet water resistance by monitoring changes in the liquid level inside the crystallizer in real time, stabilizing the liquid level within a preset range. This prevents material overflow due to excessively high liquid levels and dry burning or product defects caused by excessively low liquid levels. This device must possess characteristics of rapid response, precise adjustment, and reliable sealing. It is widely used in continuous crystallization production lines and directly affects the particle size uniformity and production continuity of the crystalline products.

[0003] However, existing crystallizer level regulation devices have significant shortcomings in practical use.

[0004] On the one hand, the adjustment accuracy is low and the response is slow: traditional devices mostly use float lever adjustment, which has a large mechanical transmission gap, resulting in uneven particle size of the crystallized product.

[0005] On the other hand, the sealing performance is poor and the adaptability is low: the seals at the connection of the inlet and outlet water pipes of traditional devices are prone to aging, which leads to material leakage, environmental pollution and waste of raw materials. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a high-efficiency liquid level regulating device for crystallizers, which overcomes the shortcomings of the prior art and effectively solves the problems of low regulating accuracy, slow response, poor sealing and low adaptability of the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-efficiency liquid level regulating device for a crystallizer includes an installation mechanism. The installation mechanism includes an installation plate, an inlet pipe that is inserted and movable at the top of the installation plate, a collar that is sleeved and fixed at the top of the inlet pipe, first fixing blocks that are welded and fixed to both sides of the annular outer wall of the collar, push rod motors and telescopic rods that are fixed to the bottom of the two first fixing blocks, and second fixing blocks that are fixed to the bottom of the push rod motors and telescopic rods. The bottom of the installation mechanism is connected to a water outlet mechanism, which includes a connecting pipe, a fixing ring that is sleeved and fixed to the outer wall of the connecting pipe, first connecting blocks that are welded and fixed to both sides of the annular outer wall of the fixing ring, guide rods that are inserted and movable at the bottom of the two first connecting blocks, second connecting blocks that are welded and fixed to the bottom of the two guide rods, a float that is welded and fixed between the two second connecting blocks, and a piston connected to the top of the float.

[0009] Preferably, the top of the mounting plate has equidistantly distributed mounting holes along a ring, and the mounting plate is fixed to the top cover of the crystallizer by bolts.

[0010] The mounting plate is made of 304 stainless steel with a polished surface. The mounting holes are evenly distributed around the ring. It is fixed to the top cover of the crystallizer with M12×30mm stainless steel bolts. Spring washers are added to the bolt heads to ensure a firm and secure installation.

[0011] Preferably, the two second fixing blocks are welded and fixed to both sides of the annular outer wall of the mounting plate.

[0012] The second fixing block is made of Q235 steel and is fully welded to the mounting plate. The weld is treated with rust prevention. The top of the second fixing block is machined with threaded holes and screwed to the bottom flange of the push rod motor and telescopic rod to ensure stable installation of the power components without vibration or displacement.

[0013] Preferably, the bottom end of the water inlet pipe and the top end of the connecting pipe are respectively fitted with flanges, and the two flanges are connected and fixed by bolts and nuts.

[0014] Both the inlet pipe and the connecting pipe are made of 304 stainless steel, and the flange sealing surface is machined with water lines. They are fastened with four M16×25mm bolts to ensure a tight connection.

[0015] Preferably, a sealing ring is provided at the top of the connecting pipe, and the water inlet pipe and the connecting pipe are sealed together by the sealing ring.

[0016] The sealing ring is made of fluororubber, with a temperature range of -20 to 200℃. It has strong corrosion resistance, and its sealing performance is optimal at a compression of 20%. It can effectively prevent material leakage and has a service life of ≥12 months.

[0017] Preferably, a limit block is welded and fixed to the top of the guide rod.

[0018] The guide rod is made of 304 stainless steel with chrome plating. The clearance between it and the first connecting block is 0.1mm, allowing for smooth sliding. The limit block is made of Q235 steel, which can prevent the guide rod from sliding down too much and detaching from the first connecting block, ensuring that the movement range of the floating table is controllable.

[0019] Preferably, a screw is welded and fixed to the top of the floating roof, and the bottom of the piston is screwed to the screw, forming a sealing fit between the piston and the bottom of the connecting pipe.

[0020] The floating roof is made of ABS engineering plastic with a buoyancy of ≥50N, ensuring a rapid response to changes in liquid level; the screw is an M10×1.25mm stainless steel screw, and the piston is made of nitrile rubber, with a fit of ≥95% to the inner wall of the connecting pipe, ensuring a reliable seal.

[0021] Preferably, the control end of the push rod motor is electrically connected to a liquid level sensor, and the liquid level sensor is fixed to the inner wall of the crystallizer.

[0022] The liquid level sensor is a capacitive sensor that provides real-time feedback of liquid level data. The push rod motor has a response time of ≤0.5 seconds and can automatically adjust the height of the inlet pipe to achieve precise liquid level regulation.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. Precise and rapid adjustment, high crystallization stability. Through the feedback of the floating plate and the coordination of the motor drive, the problems of low precision and slow response of traditional devices are solved. The floating plate and piston directly sense the liquid level change. With the real-time monitoring of the liquid level sensor, the particle size uniformity deviation of the crystallized product is reduced, the purity is improved, the overflow and dry burning accident rate is reduced, and the production continuity is significantly improved.

[0025] 2. Reliable sealing and wide compatibility, low maintenance cost. Relying on enhanced sealing and modular design, it improves the poor sealing and low compatibility of traditional equipment. The fluororubber sealing ring and flange connection provide double sealing. The multiple sets of mounting holes on the mounting plate are compatible with crystallizers of different diameters, eliminating the need to reprocess parts and improving compatibility. The guide rod and piston can be replaced individually, reducing maintenance costs and meeting the needs of multi-specification crystallization production. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a high-efficiency liquid level regulating device for a crystallizer proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a high-efficiency liquid level regulating device for a crystallizer proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a high-efficiency liquid level regulating device for a crystallizer proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of a high-efficiency liquid level regulating device for a crystallizer proposed in this utility model.

[0030] In the diagram: 1. Installation mechanism; 2. Installation plate; 3. Inlet pipe; 4. Collar; 5. First fixing block; 6. Push rod motor; 7. Telescopic rod; 8. Second fixing block; 9. Outlet mechanism; 10. Connecting pipe; 11. Sealing ring; 12. Fixing ring; 13. First connecting block; 14. Guide rod; 15. Limiting block; 16. Second connecting block; 17. Float; 18. Piston; 19. Screw. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example:

[0033] Reference Figure 1-4 A high-efficiency liquid level regulating device for a crystallizer includes an installation mechanism 1. The installation mechanism 1 includes an installation plate 2, an inlet pipe 3 that is inserted and movable at the top of the installation plate 2, a collar 4 that is sleeved and fixed at the top of the inlet pipe 3, first fixing blocks 5 that are welded and fixed to both sides of the annular outer wall of the collar 4, push rod motors 6 and telescopic rods 7 that are fixed to the bottom of the two first fixing blocks 5, and second fixing blocks 8 that are fixed to the bottom of the push rod motors 6 and telescopic rods 7. The bottom of the installation mechanism 1 is connected to a water outlet mechanism 9. The water outlet mechanism 9 includes a connecting pipe 10, a fixing ring 12 that is sleeved and fixed to the outer wall of the connecting pipe 10, first connecting blocks 13 that are welded and fixed to both sides of the annular outer wall of the fixing ring 12, guide rods 14 that are inserted and movable at the bottom of the two first connecting blocks 13, second connecting blocks 16 that are welded and fixed to the bottom of the two guide rods 14, a float 17 that is welded and fixed between the two second connecting blocks 16, and a piston 18 connected to the top of the float 17.

[0034] The top of the mounting plate 2 has evenly distributed mounting holes along the annular shape. The mounting plate 2 is fixed to the top cover of the crystallizer by bolts. The mounting plate 2 is made of 304 stainless steel and the surface is polished. The mounting holes are evenly distributed along the annular shape and are fixed to the top cover of the crystallizer by M12×30mm stainless steel bolts. Spring washers are added to the bolt heads to ensure that the installation is firm and not loose. Two second fixing blocks 8 are welded and fixed to both sides of the annular outer wall of the mounting plate 2. The second fixing blocks 8 are made of Q235 steel and are fully welded to the mounting plate 2. The weld is treated with rust prevention. The top of the second fixing blocks 8 is machined with threaded holes and screwed to the bottom flanges of the push rod motor 6 and the telescopic rod 7 to ensure that the power components are installed stably and without vibration or displacement. The bottom end of the water inlet pipe 3 and the top end of the connecting pipe 10 are respectively fitted with flanges. The two flanges are connected and fixed by bolts and nuts. Both the water inlet pipe 3 and the connecting pipe 10 are made of 304 stainless steel. The flange sealing surface is machined with water lines and is fastened with 4 M16×25mm bolts to ensure a tight connection.

[0035] A sealing ring 11 is provided at the top of the connecting pipe 10. The inlet pipe 3 and the connecting pipe 10 form a sealed fit through the sealing ring 11. The sealing ring 11 is made of fluororubber, with a temperature range of -20-200℃, strong corrosion resistance, and optimal sealing performance at 20% compression. It effectively prevents material leakage and has a service life of ≥12 months. A limit block 15 is welded to the top of the guide rod 14. The guide rod 14 is made of 304 stainless steel with a chrome-plated surface. Its clearance with the first connecting block 13 is 0.1mm, allowing for smooth sliding. The limit block 15 is made of Q235 steel, preventing the guide rod 14 from sliding excessively and detaching from the first connecting block 13, ensuring the controllable movement range of the floating plate 17. The top of the floating plate 17... The screw 19 is welded and fixed to the part, and the bottom of the piston 18 is screwed to the screw 19. The piston 18 and the bottom of the connecting pipe 10 form a sealed fit. The float 17 is made of ABS engineering plastic material with a buoyancy of ≥50N to ensure rapid response when the liquid level changes. The screw 19 is an M10×1.25mm stainless steel screw, and the piston 18 is made of nitrile rubber. The fit with the inner wall of the connecting pipe 10 is ≥95%, and the seal is reliable. The control end of the push rod motor 6 is electrically connected to the liquid level sensor 20. The liquid level sensor is fixed to the inner wall of the crystallizer. The liquid level sensor is a capacitive sensor that provides real-time feedback of liquid level data. The response time of the push rod motor 6 is ≤0.5 seconds. It can automatically adjust the height of the water inlet pipe 3 to achieve precise liquid level regulation.

[0036] Assembly of the installation mechanism: The installation plate 2 is made of 304 stainless steel by laser cutting and polishing. After polishing, eight installation holes are machined in a ring. The water inlet pipe 3 passes through the center hole of the installation plate 2. The collar 4 is fixed to the top of the water inlet pipe 3 by argon arc welding. The first fixing block 5 is welded to both sides of the collar 4 and screwed to the top flange of the push rod motor 6 and the telescopic rod 7. The second fixing block 8 is welded to the outer wall of the installation plate 2 and screwed to the bottom flange of the push rod motor 6 and the telescopic rod 7.

[0037] Water outlet mechanism assembly: A flange is welded to the top of the connecting pipe 10, and a sealing ring 11 is placed in the top groove. The fixing ring 12 is fixed to the outer wall of the connecting pipe 10 by welding. The first connecting block 13 is welded to both sides of the fixing ring 12, and guide holes are machined. A limiting block 15 is welded to the top of the guide rod 14 and inserted into the guide hole of the first connecting block 13. A second connecting block 16 is welded to the bottom. The float 17 is welded between the two second connecting blocks 16. The screw 19 is welded to the top of the float 17. The piston 18 is screwed to the screw 19 to ensure a sealed fit between the piston 18 and the bottom of the connecting pipe 10.

[0038] Overall connection and sealing: Align the bottom flange of the inlet pipe 3 with the top flange of the connecting pipe 10, place the sealing ring 11, and tighten with M16 bolts. Check the fit clearance between the inlet pipe 3 and the mounting plate 2 to ensure smooth lifting and lowering when driven by the push rod motor 6. The liquid level sensor 20 is fixed to the inner wall of the crystallizer by the bracket, and the wire is threaded through the waterproof sleeve and connected to the control end of the push rod motor 6. Adjust the sensor response sensitivity.

[0039] Commissioning and performance testing: Fix the device to the top cover of the crystallizer via the mounting plate 2, inject material to the preset liquid level, and test the liquid level adjustment: Manually lower the liquid level by 10mm, the float 17 drives the piston 18 to descend, the liquid level sensor 20 feeds back a signal, the push rod motor 6 drives the water inlet pipe 3 to descend to increase the water inlet flow, and the liquid level returns to the preset value within 3 seconds; run continuously for 24 hours, monitor the sealing performance and adjustment accuracy, and meet the design requirements.

[0040] Working principle

[0041] Device installation and initialization: Fix the device to the top cover of the crystallizer with M12 bolts through the mounting holes of the mounting plate 2, ensuring that the water inlet pipe 3 and the connecting pipe 10 are coaxial and that the piston 18 and the bottom of the connecting pipe 10 are sealed and fitted; connect the water inlet pipe 3 to the external water supply line, fix the liquid level sensor 20 to the preset position on the inner wall of the crystallizer, turn on the power, set the target liquid level, and drive the push rod motor 6 to raise and lower the water inlet pipe 3 to the initial water inlet height, and the device enters the standby state.

[0042] Liquid level monitoring and automatic adjustment: During the crystallization process, when the liquid level changes due to material evaporation or feed fluctuations, the float 17 rises and falls synchronously with the liquid level: When the liquid level is lower than the preset value, the float 17 descends, the gap between the piston 18 and the bottom of the connecting pipe 10 increases, the water outlet resistance decreases, and at the same time, the liquid level sensor 20 sends a signal, the push rod motor 6 drives the water inlet pipe 3 to descend, increasing the water inlet flow rate and quickly replenishing the material; When the liquid level is higher than the preset value, the float 17 rises, the piston 18 approaches the bottom of the connecting pipe 10, the water outlet resistance increases, the liquid level sensor 20 feeds back a signal, the push rod motor 6 drives the water inlet pipe 3 to rise, reducing the water inlet flow rate, and excess material is discharged through the gap between the piston and the connecting pipe until the liquid level returns to the preset range.

[0043] Sealing and stability assurance: The sealing ring 11 between the water inlet pipe 3 and the connecting pipe 10, and the sealing fit between the piston 18 and the connecting pipe 10, doubly block the material leakage channel and ensure reliable sealing; the telescopic rod 7 extends and retracts synchronously with the push rod motor 6 to guide the water inlet pipe 3 and prevent the pipe from deviating when water is introduced; the guide rod 14 restricts the movement direction of the float 17 to avoid the float tilting and causing adjustment failure; the limit block 15 prevents the guide rod from sliding excessively and ensures stable operation of the device.

[0044] Maintenance and Adaptation: During routine maintenance, if a decrease in sealing performance is found, loosen the flange bolts and replace the sealing ring 11 or piston 18 without disassembling the entire device; when changing crystallizers of different specifications, adjust the fixing position through the multiple sets of mounting holes on the mounting plate 2, or replace the floating plate 17 of the corresponding size for quick adaptation without reprocessing the installation parts. The changeover time is shortened from 2 days to 30 minutes, meeting the needs of multi-specification production.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency liquid level regulating device for a crystallizer, comprising an installation mechanism (1), characterized in that, The installation mechanism (1) includes an installation plate (2), an inlet pipe (3) that is inserted into the top of the installation plate (2), a collar (4) that is sleeved and fixed to the top of the inlet pipe (3), first fixing blocks (5) that are welded and fixed to both sides of the outer wall of the collar (4), push rod motors (6) and telescopic rods (7) that are fixed to the bottom of the two first fixing blocks (5), and second fixing blocks (8) that are fixed to the bottom of the push rod motors (6) and telescopic rods (7). The bottom of the installation mechanism (1) is connected to a water outlet mechanism (9). The water outlet mechanism (9) includes a connecting pipe (10), a fixing ring (12) sleeved and fixed to the outer wall of the connecting pipe (10), first connecting blocks (13) welded and fixed to both sides of the annular outer wall of the fixing ring (12), guide rods (14) inserted and movable at the bottom of the two first connecting blocks (13), second connecting blocks (16) welded and fixed to the bottom of the two guide rods (14), a float (17) welded and fixed between the two second connecting blocks (16), and a piston (18) connected to the top of the float (17).

2. The crystallizer liquid level high-efficiency regulating device according to claim 1, characterized in that, The top of the mounting plate (2) is provided with equally spaced mounting holes along the annular shape, and the mounting plate (2) is fixed to the top cover of the crystallizer by bolts.

3. The crystallizer liquid level high-efficiency regulating device according to claim 1, characterized in that, The two second fixing blocks (8) are welded and fixed to both sides of the annular outer wall of the mounting plate (2).

4. The crystallizer liquid level high-efficiency regulating device according to claim 1, characterized in that, The bottom end of the water inlet pipe (3) and the top end of the connecting pipe (10) are respectively fitted with flanges, and the two flanges are connected and fixed by bolts and nuts.

5. The crystallizer liquid level high-efficiency regulating device according to claim 1, characterized in that, A sealing ring (11) is provided at the top of the connecting pipe (10), and the water inlet pipe (3) and the connecting pipe (10) are sealed together by the sealing ring (11).

6. The crystallizer liquid level high-efficiency regulating device according to claim 1, characterized in that, A limit block (15) is welded and fixed to the top of the guide rod (14).

7. The crystallizer liquid level high-efficiency regulating device according to claim 1, characterized in that, The top of the floating plate (17) is welded and fixed with a screw (19), and the bottom of the piston (18) is screwed to the screw (19), and the piston (18) and the bottom of the connecting pipe (10) form a sealed fit.

8. The crystallizer liquid level high-efficiency regulating device according to claim 1, characterized in that, The control end of the push rod motor (6) is electrically connected to a liquid level sensor, and the liquid level sensor is fixed to the inner wall of the crystallizer.

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