Leak-proof mvr evaporator

By employing a double-sealing structure in the MVR evaporator, the leakage problem during the disassembly and assembly of the filter unit is solved, achieving efficient sealing and safe operation.

CN224523970UActive Publication Date: 2026-07-21CHANGZHOU YANJIALONG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU YANJIALONG MASCH CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing MVR evaporators are prone to leakage problems when disassembling and installing filter devices.

Method used

A leak-proof MVR evaporator was designed, employing a double-sealing structure. The first seal is formed by the tight fit between the retaining ring on the output pipe and the auxiliary ring on the docking cover through a sealing ring. The second mechanical compression seal is formed by the support ring being linked with the drive component through a sliding plate, ensuring the sealing performance of the docking part.

Benefits of technology

It effectively reduces the probability of leakage when disassembling and assembling the filter device, improves the sealing reliability and service life of the equipment, and ensures a safe operating environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to evaporator technical field, concretely is a kind of MVR evaporator of anti-leakage, including evaporation chamber, butt joint subassembly and external component, the evaporation chamber upper portion is provided with two groups of output pipe, the output pipe is inverted L shape, the upper part of output pipe is provided with baffle ring, the butt joint subassembly includes base, sliding frame, baffle, driving part, slide and support ring, the evaporation chamber is provided with base, the base is also provided with sliding frame, the baffle ring on output pipe and the auxiliary ring of butt joint cover are tightly adhered through sealing washer, form first seal;The outer diameter of auxiliary ring and baffle ring is greater than support ring, can cover the connecting gap, avoid steam from edge seepage.Support ring is linked through slide and driving part, driving part (screw rod, guide rod) drive slide accurate movement, make support ring tightly clamped butt joint cover and the plug-in part of output pipe, form second mechanical pressure tight seal, double seal structure greatly reduces the leakage probability.
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Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically to a leak-proof MVR evaporator. Background Technology

[0002] MVR evaporators (mechanical vapor recompression evaporators) use a compressor to compress and heat secondary vapor, which is then reused as a heat source to achieve low-energy evaporation and concentration. They are widely used in chemical, pharmaceutical, and food processing industries.

[0003] The upper port of the evaporator often needs to be filled with a filter to filter the steam. After the equipment has been running for a period of time, the filled filter needs to be disassembled and cleaned. During the repeated disassembly and reassembly of the connection structure, equipment leakage is likely to occur, making it inconvenient to use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a leak-proof MVR evaporator.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof MVR evaporator, comprising an evaporation chamber, a docking assembly, and an external assembly. Two sets of output pipes are arranged above the evaporation chamber. The output pipes are inverted L-shaped, and a retaining ring is provided on the upper part of each output pipe. The docking assembly includes a base, a sliding frame, a partition, a driving component, a sliding plate, and a support ring. The evaporation chamber has a base, and the base also has a sliding frame. A partition is provided in the middle of the sliding frame. Two sets of sliding plates are arranged symmetrically. Driving components that move the sliding plates are symmetrically arranged on the left and right sides of the sliding frame. The sliding plates protrude from the sliding frame and are connected to the support ring. The external assembly includes a docking cover, an auxiliary ring, and a connecting pipe. The support ring is C-shaped with an upward opening. An auxiliary ring is provided at one end of the docking cover near the retaining ring. The docking cover passes through the support ring and is connected to the connecting pipe. The docking cover is inserted into the output pipe.

[0008] Preferably, the outer diameter of the auxiliary ring and the retaining ring is larger than the outer diameter of the support ring.

[0009] Preferably, the auxiliary ring is further provided with a locking block connected to the support ring, and the support ring is provided with a locking groove adapted to the locking block.

[0010] To facilitate the feeding of the slide plate, this utility model is improved by including a guide rod, a screw, and a handle. Screws are symmetrically arranged on the left and right sides of the partition. The screws pass through the slide frame and are connected to the handle. Guide rods are also provided on the upper and lower sides of the screws. The slide plate is slidably connected to the guide rods and threadedly connected to the screws.

[0011] Preferably, the auxiliary ring is further provided with a sealing ring that is connected to the retaining ring.

[0012] Preferably, the output pipe is also provided with a switching valve.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a leak-proof MVR evaporator, which has the following beneficial effects:

[0015] This leak-proof MVR evaporator features a design specifically for the connection and external components, effectively addressing leakage issues during filter assembly and disassembly.

[0016] The retaining ring on the output pipe and the auxiliary ring of the docking cover are tightly fitted together by the sealing ring to form the first seal; the outer diameter of the auxiliary ring and the retaining ring is larger than that of the support ring, which can cover the connection gap and prevent steam from leaking from the edge.

[0017] The support ring is linked to the drive component via the sliding plate. The drive component (screw, guide rod) drives the sliding plate to move precisely, so that the support ring tightly clamps the insertion part of the docking cover and the output pipe, forming a second mechanical compression seal. The double sealing structure greatly reduces the probability of leakage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a partial schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a partial explosion diagram of the structure of this utility model;

[0021] Figure 4 The structure of this utility model Figure 3 A magnified view of a portion of the image.

[0022] In the diagram: 1. Evaporation chamber; 2. Output pipe; 3. Baffle ring; 4. Base; 5. Sliding frame; 6. Baffle plate; 7. Slide plate; 8. Support ring; 9. Docking cover; 10. Auxiliary ring; 11. Connecting pipe; 12. Locking block; 13. Guide rod; 14. Screw; 15. Handle; 16. Sealing ring; 17. Switch valve. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4 A leak-proof MVR evaporator includes an evaporation chamber 1, a docking assembly, and an external assembly. Two sets of output pipes 2 are arranged above the evaporation chamber 1. The output pipes 2 are inverted L-shaped, and a retaining ring 3 is provided on the upper part of each output pipe 2. The docking assembly includes a base 4, a sliding frame 5, a partition 6, a driving component, a sliding plate 7, and a support ring 8. The base 4 is provided on the evaporation chamber 1, and the sliding frame 5 is also provided on the base 4. The partition 6 is provided in the middle part of the sliding frame 5. The sliding plate 7 is arranged in two symmetrical sets. Driving components that drive the sliding plate 7 are symmetrically arranged on the left and right sides of the sliding frame 5. The sliding plate 7 protrudes from the sliding frame 5 and is connected to the support ring 8. The external assembly includes a docking cover 9, an auxiliary ring 10, and a connecting pipe 11. The support ring 8 is C-shaped with an upward opening. The auxiliary ring 10 is provided at one end of the docking cover 9 near the retaining ring 3. The docking cover 9 passes through the support ring 8 and is connected to the connecting pipe 11. The docking cover 9 is inserted into the output pipe 2.

[0025] When the external component (including the filter device) is connected to the output pipe 2 of the evaporation chamber 1, the docking cover 9 is first inserted into the output pipe 2, so that the auxiliary ring 10 fits against the retaining ring 3 on the output pipe 2. The auxiliary ring 10 is also provided with a sealing ring 16 connected to the retaining ring 3. At this time, the sealing ring 16 on the auxiliary ring 10 is squeezed between the auxiliary ring 10 and the retaining ring 3, forming the first seal and blocking the path of steam leakage from the gap between the two. At the same time, the locking block 12 on the auxiliary ring 10 is embedded in the locking groove of the support ring 8 to achieve precise positioning of the docking cover 9 and the support ring 8, ensuring that the sealing ring 16 and the retaining ring 3 are accurately fitted, and avoiding seal failure due to misalignment.

[0026] Two sets of symmetrically arranged sliding plates 7 are connected to the support rings 8, and the clamping force is evenly distributed around the docking cover 9 to prevent gaps from appearing at the insertion part due to uneven force, and further ensure the reliability of the seal.

[0027] The support ring 8 is linked to the drive component via the slide plate 7. The drive component (screw 14, guide rod 13) drives the slide plate 7 to move precisely, so that the support ring 8 tightly clamps the insertion part of the docking cover 9 and the output pipe 2, forming a second mechanical compression seal. The double sealing structure greatly reduces the probability of leakage.

[0028] In this embodiment, the outer diameters of the auxiliary ring 10 and the retaining ring 3 are larger than the outer diameter of the support ring 8, so that the support ring 8 can provide stable support for the auxiliary ring 10.

[0029] The switch valve 17 on the output pipe 2 can be closed when the filter device is disassembled or assembled, cutting off the steam flow and creating a safe operating environment; the inverted L-shaped output pipe 2 is designed to adapt to the steam output path of the evaporation chamber 1, and the combination of the docking cover 9 and the connecting pipe 11 can flexibly connect to the external filter device, taking into account both leakage prevention and functional requirements.

[0030] In this embodiment, the driving component includes a guide rod 13, a screw 14, and a handle 15. Screws 14 are symmetrically arranged on both sides of the partition 6. The screws 14 pass through the sliding frame 5 and are connected to the handle 15. Guide rods 13 are also provided on the upper and lower sides of the screw 14. The slide plate 7 is slidably connected to the guide rods 13 and threadedly connected to the screws 14. The screw 14-guide rod 13 design of the driving component enables smooth feeding of the slide plate 7: when the handle 15 is rotated, the screw 14 drives the slide plate 7 to move synchronously along the guide rods 13, and the support ring 8 moves closer to or further away from the docking part. The filter device can be disassembled and assembled without frequent disassembly of bolts and other components. This design reduces wear on the docking structure in traditional disassembly and assembly methods, extends the service life of the seals, and reduces the risk of leakage due to component wear.

[0031] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0032] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0033] 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.

Claims

1. A leak-proof MVR evaporator, comprising an evaporation chamber (1), a docking assembly, and an external assembly, characterized in that, Two sets of output pipes (2) are arranged above the evaporation chamber (1). The output pipes (2) are inverted L-shaped. A retaining ring (3) is provided on the upper part of the output pipes (2). The docking assembly includes a base (4), a sliding frame (5), a partition (6), a driving component, a sliding plate (7), and a support ring (8). The base (4) is arranged on the evaporation chamber (1). The sliding frame (5) is also arranged on the base (4). A partition (6) is provided in the middle part of the sliding frame (5). The sliding plate (7) is arranged in two symmetrical sets. The left and right sides of the sliding frame (5) are... A drive unit is symmetrically arranged to move the slide plate (7). The slide plate (7) protrudes from the slide frame (5) and is connected to the support ring (8). The external component includes a docking cover (9), an auxiliary ring (10), and a connecting pipe (11). The support ring (8) is C-shaped with an upper opening. The auxiliary ring (10) is provided at one end of the docking cover (9) near the retaining ring (3). The docking cover (9) passes through the support ring (8) and is connected to the connecting pipe (11). The docking cover (9) is inserted into the output pipe (2).

2. The leak-proof MVR evaporator according to claim 1, characterized in that, The outer diameters of the auxiliary ring (10) and the retaining ring (3) are larger than the outer diameter of the support ring (8).

3. A leak-proof MVR evaporator according to claim 2, characterized in that, The auxiliary ring (10) is also provided with a locking block (12) connected to the support ring (8), and the support ring (8) is provided with a locking groove that is adapted to the locking block (12).

4. A leak-proof MVR evaporator according to claim 3, characterized in that, The driving component includes a guide rod (13), a screw (14), and a handle (15). The partition (6) is symmetrically provided with screws (14) on the left and right sides. The screws (14) pass through the slide frame (5) and are connected to the handle (15). The screws (14) are also provided with guide rods (13) on the upper and lower sides. The slide plate (7) is slidably connected to the guide rods (13) and threadedly connected to the screws (14).

5. A leak-proof MVR evaporator according to claim 4, characterized in that, The auxiliary ring (10) is also provided with a sealing ring (16) that is connected to the retaining ring (3).

6. A leak-proof MVR evaporator according to claim 5, characterized in that, The output pipe (2) is also equipped with a switching valve (17).