MVR (Mechanical Vapor Recompression) evaporative crystallization equipment

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to MVR (Mechanical Vapor Recompression) evaporative crystallization equipment which comprises a tank body, a condenser pipe arranged on the tank body, a circulating pipe arranged on the tank body, a circulating pump arranged on the circulating pipe, a discharging pipe arranged on the tank body, and a cover contacted with the upper end of the tank body, a mounting seat is fixedly connected to the outer side of the cover, a connecting seat is fixedly connected to the outer side of the tank body, the mounting seat is in contact with the connecting seat, and a sliding block is slidably connected to the interior of the mounting seat. By arranging the fixing block, the limiting sleeve, the positioning frame and the like, the positioning frame is used for accurately positioning the connecting pipe, and the limiting sleeve is matched to exert stable limiting, so that the connecting pipe and the fixing pipe are ensured to be tightly attached after being inserted, and the problem of loose connection caused by pipeline vibration during operation of the MVR evaporative crystallization equipment is effectively solved; and the medium leakage phenomenon caused by sealing failure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an MVR evaporation crystallization device. Background Technology

[0002] MVR (Multi-Effect Vapor Reduction) evaporation crystallization equipment is a key process equipment in modern chemical, pharmaceutical, and environmental protection fields. It focuses on the concentration and crystal purification of high-concentration solutions, and is particularly suitable for high-salt wastewater treatment, inorganic salt recovery, and the processing of heat-sensitive materials. Thanks to its unique energy-cycle design, this equipment significantly reduces operating energy consumption, saving 40%-70% compared to traditional multi-effect evaporation systems, thus significantly reducing production costs for enterprises. By precisely controlling the evaporation temperature and crystallization environment, it can efficiently separate target solutes and form high-purity crystals, meeting pharmaceutical or food-grade product standards, while avoiding material denaturation due to high temperatures, perfectly adapting to the processing needs of heat-sensitive components. In practical applications, MVR equipment demonstrates strong adaptability, capable of treating industrial wastewater with large fluctuations in salinity and complex composition, achieving over 95% wastewater reduction and resource recovery. The fully enclosed operating system effectively eliminates secondary pollution, complies with environmental regulations, and helps enterprises achieve green production goals. The intelligent control module supports real-time monitoring and parameter optimization, further improving operational convenience and process stability, making it an ideal choice for achieving efficient, low-cost, and sustainable production.

[0003] However, in actual operation, the MVR evaporation crystallization equipment exhibits significant defects in the insertion and connection of the connecting pipes and fixed pipes. Due to the lack of an effective locking mechanism in the insertion structure, vibrations and thermal expansion and contraction during equipment operation easily cause relative displacement at the pipe connection points. This unstable connection makes it difficult to maintain a tight seal, leading to frequent media leaks. This not only affects equipment operating efficiency but also potentially poses safety hazards, becoming a critical issue that urgently needs to be addressed in the current use of this equipment. Utility Model Content

[0004] The purpose of this invention is to provide an MVR evaporation crystallization device that solves the problem of unstable connection between the connecting pipe and the fixed pipe during use, which easily leads to leakage at the connection point.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an MVR evaporation crystallization device, comprising a tank, a condenser pipe provided on the tank, a circulation pipe provided on the tank, a circulation pump provided on the circulation pipe, a discharge pipe provided on the tank, a cover contacting the upper end of the tank, a mounting base fixedly connected to the outer side of the cover, a connecting base fixedly connected to the outer side of the tank, the mounting base contacting the connecting base, a slider slidably connected inside the mounting base, a locking block fixedly connected to the lower end of the slider, a locking groove opened inside the connecting base, a fixing rod fixedly connected inside the mounting base, the fixing rod slidably connected to the slider, a spring provided on the outer side of the fixing rod, and a fixing mechanism provided on the cover.

[0006] Preferably, the locking block contacts the mounting base, and the locking block is slidably connected to the locking slot. Through the design of the locking block, the mounting base can be limited.

[0007] Preferably, one end of the spring contacts the mounting base, and the other end of the spring contacts the slider. Through the design of the spring, the locking block can be driven to limit the connection base.

[0008] Preferably, a push plate is fixedly connected to the upper end of the slider, and the push plate contacts the mounting base. The design of the push plate allows for easy movement of the block.

[0009] Preferably, the fixing mechanism includes a fixing tube, the upper end of the cover is fixedly connected to the fixing tube, a connecting tube is inserted into the outside of the fixing tube, the upper end of the cover is fixedly connected to a fixing block, the fixing block is in contact with the connecting tube, a limiting sleeve is rotatably connected to the outside of the fixing block, a protrusion is fixedly connected inside the limiting sleeve, the protrusion is slidably connected to the fixing block, and a positioning frame is fixedly connected to the outside of the connecting tube. Through the design of the fixing mechanism, the fixing tube and the connecting tube can remain stable after being inserted.

[0010] Preferably, the limiting sleeve contacts the cover, and the limiting sleeve is connected to the connecting pipe by a thread. The design of the limiting sleeve can limit the movement of the connecting pipe.

[0011] Preferably, the positioning frame is slidably connected to the cover, and the positioning frame is in contact with the limiting sleeve. Through the design of the positioning frame, it can play a positioning role for the connecting pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting components such as a fixing block, a limiting sleeve, and a positioning frame, uses the positioning frame to accurately position the connecting pipe and the limiting sleeve to apply a stable limit, ensuring that the connecting pipe and the fixing pipe remain tightly fitted after insertion. This effectively solves the problem of connection loosening caused by pipeline vibration during the operation of MVR evaporation crystallization equipment and avoids the phenomenon of medium leakage caused by seal failure.

[0014] 2. This utility model adopts a quick locking mechanism composed of a slider, a locking block and a spring. The spring preload drives the locking block to accurately engage with the connecting seat, realizing a stable closure between the lid and the can. This effectively solves the problem of easy loosening of traditional sealing structures, avoids sealing failure caused by vibration or pressure fluctuations, and significantly improves the reliability and ease of operation of the can sealing connection. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A partial three-dimensional structural diagram;

[0017] Figure 3 For the present utility model Figure 1 Enlarged frontal sectional view of a local structure;

[0018] Figure 4 For the present utility model Figure 2 Enlarged view of part A of the structure.

[0019] In the diagram: 1. Tank body; 11. Condenser pipe; 12. Circulation pipe; 13. Circulation pump; 14. Discharge pipe; 2. Cover; 3. Mounting base; 31. Connecting base; 32. Slider; 33. Locking block; 34. Locking groove; 35. Fixing rod; 36. Spring; 37. Push plate; 4. Fixing mechanism; 41. Fixing pipe; 42. Connecting pipe; 43. Fixing block; 44. Limiting sleeve; 45. Protrusion; 46. Positioning frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4An MVR evaporation crystallization device includes a tank 1, a condenser pipe 11 on the tank 1, a circulation pipe 12 on the tank 1, a circulation pump 13 on the circulation pipe 12, a discharge pipe 14 on the tank 1, a cover 2 in contact with the upper end of the tank 1, a mounting base 3 fixedly connected to the outer side of the cover 2, a connecting base 31 fixedly connected to the outer side of the tank 1, the mounting base 3 in contact with the connecting base 31, a slider 32 slidably connected inside the mounting base 3, a locking block 33 fixedly connected to the lower end of the slider 32, and a locking groove 34 opened inside the connecting base 31.

[0022] Please see Figure 2-4 The locking block 33 contacts the mounting base 3 and slides with the slot 34. The locking block 33 is designed to limit the mounting base 3. The mounting base 3 is internally fixedly connected to a fixing rod 35, which is slidably connected to the slider 32. A spring 36 is provided on the outside of the fixing rod 35. One end of the spring 36 contacts the mounting base 3, and the other end of the spring 36 contacts the slider 32. The spring 36 is designed to drive the locking block 33 to limit the connection base 31. A push plate 37 is fixedly connected to the upper end of the slider 32. The push plate 37 contacts the mounting base 3. The push plate 37 is designed to facilitate the movement of the locking block 33. A fixing mechanism 4 is provided on the cover 2.

[0023] Please see Figure 2-4 The fixing mechanism 4 includes a fixing tube 41. The upper end of the cover 2 is fixedly connected to the fixing tube 41. A connecting tube 42 is inserted into the outside of the fixing tube 41. The upper end of the cover 2 is fixedly connected to a fixing block 43. The fixing block 43 contacts the connecting tube 42. A limiting sleeve 44 is rotatably connected to the outside of the fixing block 43. The limiting sleeve 44 contacts the cover 2. The limiting sleeve 44 is threadedly connected to the connecting tube 42. The limiting sleeve 44 is designed to limit the connection of the connecting tube 42. A protrusion 45 is fixedly connected inside the limiting sleeve 44. The protrusion 45 is slidably connected to the fixing block 43. A positioning frame 46 is fixedly connected to the outside of the connecting tube 42. The positioning frame 46 is slidably connected to the cover 2. The positioning frame 46 contacts the limiting sleeve 44. The positioning frame 46 is designed to position the connecting tube 42. The fixing mechanism 4 is designed to keep the fixing tube 41 and the connecting tube 42 stable after they are inserted.

[0024] The specific implementation process of this utility model is as follows: In use, by moving the two push plates 37 toward each other, the push plates 37 drive the slider 32 to move, and the slider 32 squeezes the spring 36, so that the cover 2 is installed with the can body 1. The mounting base 3 drives the locking block 33 to slide into the slot 34 on the connecting base 31. Then, the push plates 37 are released, and the spring force of the spring 36 drives the slider 32 to move, so that the slider 32 drives the locking block 33 to move, and the locking block 33 engages with the connecting base 31, so that the cover 2 and the can body 1 are installed stably.

[0025] By inserting the connecting pipe 42 into the fixed pipe 41, the connecting pipe 42 drives the positioning frame 46 to insert into the cover 2. Then, by rotating the limiting sleeve 44, the limiting sleeve 44 and the connecting pipe 42 undergo threaded movement, thereby ensuring that the connection between the connecting pipe 42 and the fixed pipe 41 remains stable and preventing leakage at the connection between the connecting pipe 42 and the fixed pipe 41.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An MVR evaporation crystallization apparatus, comprising a tank (1), characterized in that: The tank (1) is provided with a condenser pipe (11), the tank (1) is provided with a circulation pipe (12), the circulation pipe (12) is provided with a circulation pump (13), the tank (1) is provided with a discharge pipe (14), the upper end of the tank (1) is in contact with a cover (2), the outer side of the cover (2) is fixedly connected with a mounting base (3), the outer side of the tank (1) is fixedly connected with a connecting base (31), the mounting base (3) is in contact with the connecting base (31), the mounting base (3) is slidably connected with a slider (32), the lower end of the slider (32) is fixedly connected with a locking block (33), the connecting base (31) is provided with a locking groove (34), the mounting base (3) is fixedly connected with a fixing rod (35), the fixing rod (35) is slidably connected with the slider (32), the outer side of the fixing rod (35) is provided with a spring (36), and the cover (2) is provided with a fixing mechanism (4).

2. The MVR evaporation crystallization apparatus according to claim 1, characterized in that: The card block (33) contacts the mounting base (3), and the card block (33) is slidably connected to the card slot (34).

3. The MVR evaporation crystallization apparatus according to claim 1, characterized in that: One end of the spring (36) is in contact with the mounting base (3), and the other end of the spring (36) is in contact with the slider (32).

4. The MVR evaporation crystallization apparatus according to claim 1, characterized in that: The upper end of the slider (32) is fixedly connected to a push plate (37), which is in contact with the mounting base (3).

5. The MVR evaporation crystallization apparatus according to claim 1, characterized in that: The fixing mechanism (4) includes a fixing tube (41), the upper end of the cover (2) is fixedly connected to the fixing tube (41), the outside of the fixing tube (41) is inserted into the connecting tube (42), the upper end of the cover (2) is fixedly connected to the fixing block (43), the fixing block (43) is in contact with the connecting tube (42), the outside of the fixing block (43) is rotatably connected to the limiting sleeve (44), the inside of the limiting sleeve (44) is fixedly connected to the protrusion (45), the protrusion (45) is slidably connected to the fixing block (43), and the outside of the connecting tube (42) is fixedly connected to the positioning frame (46).

6. The MVR evaporative crystallization apparatus of claim 5, wherein: The limiting sleeve (44) contacts the cover (2), and the limiting sleeve (44) is connected to the connecting pipe (42) by threads.

7. The MVR evaporative crystallization apparatus of claim 5, wherein: The positioning frame (46) is slidably connected to the cover (2), and the positioning frame (46) is in contact with the limiting sleeve (44).

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