Multi-layer liquid distribution device of falling film evaporator

Abstract

The utility model relates to the technical field of evaporators, and discloses a multilayer liquid distribution device of a falling film evaporator, which comprises a case, a water inlet pipe is connected to the upper side of the case, a water outlet pipe is connected to the lower side of the case, and a plurality of groups of filter cloth mounting devices are uniformly connected to the front side of the case. A plurality of groups of limiting devices matched with the filter cloth mounting device are connected to the rear side wall of the case, the filter cloth mounting device comprises a fixing frame, limiting plates are connected to the upper side and the lower side of the fixing frame, and a filter cloth main body is arranged on the rear side of the fixing frame; according to the scheme, the filter cloth main body can be quickly mounted, dismounted and replaced by arranging the filter cloth mounting device, so that the use convenience of the device is effectively improved, and the left and right positions of the fixing frame are limited through the second clamping block after the fixing frame is placed through the cooperation of the first spring and the second clamping block; and therefore, the use stability of the device is improved, and the use safety of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of evaporator technology, specifically a multi-layer liquid distribution device for a falling film evaporator. Background Technology

[0002] Falling film evaporation involves adding the feed liquid from the upper tube box of the heating chamber of a falling film evaporator. The liquid is then evenly distributed into each heat exchange tube by a liquid distribution and film-forming device. Under the influence of gravity, vacuum induction, and airflow, the liquid forms a uniform film that flows downwards. During this flow, the liquid is heated and vaporized by the shell-side heating medium. The resulting vapor and liquid phase enter the separation chamber of the evaporator together. After thorough separation, the vapor enters the condenser for condensation (single-effect operation) or enters the next-effect evaporator as a heating medium, thus achieving multi-effect operation. The liquid phase is discharged from the separation chamber. Falling film evaporators are used when processing feed liquids, and a multi-layer liquid distribution device for falling film evaporators is one such example.

[0003] A search revealed that Chinese Patent Publication No. CN221432159U discloses a multi-layer liquid distribution device for a falling film evaporator. The device includes a falling film evaporator body, a support frame welded to the bottom of the falling film evaporator body, a water outlet at the bottom of the falling film evaporator body, a sealing device slidably mounted on the outer wall of the falling film evaporator body, a first slide rail at the bottom of the falling film evaporator body, and a first limiting groove and a second limiting groove symmetrically opened on both sides of the outer wall of the falling film evaporator body. A first slider is slidably installed inside the first slide rail, a sealing plate is welded to the top of the first slider, and a handle is welded to the outer wall of the sealing plate. This liquid distribution device provides operators with more space for replacement, facilitating quick and effective replacement of filter cloth plates. It is simpler and easier to operate, thus shortening the time for operators to replace or add filter cloth plates, thereby ensuring the normal operation of the evaporator. However, this device requires the simultaneous replacement of multiple filter cloths during filter cloth replacement, resulting in waste of filter cloth resources in actual use. Therefore, we propose a multi-layer liquid distribution device for falling film evaporators. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a multi-layer liquid distribution device for a falling film evaporator, which effectively solves the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer liquid distribution device for a falling film evaporator, comprising a housing, an inlet pipe connected to the upper side of the housing, an outlet pipe connected to the lower side of the housing, multiple sets of filter cloth installation devices evenly connected to the front side of the housing, and multiple sets of limiting devices matching the filter cloth installation devices connected to the rear side wall of the housing.

[0006] Preferably, the filter cloth installation device includes a fixing frame, with limit plates connected to both the upper and lower sides of the fixing frame, a filter cloth body provided on the rear side of the fixing frame, two sets of connecting rods connected to the rear side of the filter cloth body, an action block connected to the rear side of the connecting rods, and a first locking block connected to the rear side of the action block.

[0007] Preferably, the limiting device includes two sets of fixing plates, the main body of the fixing plates is connected to a plug, the opposite sides of the two sets of plugs are each connected to a third locking block, the opposite sides of the two sets of plugs are each connected to a second spring, the opposite sides of the two sets of second springs are respectively connected to the opposite ends of the two sets of third locking blocks, and the rear side plate of the chassis is provided with a sliding groove that matches the limiting device.

[0008] Preferably, a first spring is connected to both the left and right sides of the fixing frame, a second locking block is connected to the rear side of the first spring, and a sliding groove matching the second locking block is provided on both the left and right sides of the fixing frame.

[0009] Preferably, the inner wall of the casing is uniformly connected with multiple sets of sliding blocks, and the front side of the sliding blocks is provided with a sliding groove that matches the filter cloth installation device.

[0010] Preferably, handles are connected to both the left and right sides of the fixing frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a filter cloth installation device, the filter cloth body can be quickly installed, disassembled and replaced, thereby effectively improving the convenience of using the device. By setting up a first spring and a second locking block in cooperation, after the fixing frame is placed, the second locking block limits the left and right positions of the fixing frame, thereby improving the stability and safety of using the device.

[0013] 2. By setting a limiting device to quickly limit and fix the filter cloth body, the stability of the filter cloth body during use is improved. By setting a sliding block, the stability of the filter cloth body during use is further improved. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the multi-layer liquid distribution device of the falling film evaporator of this utility model;

[0017] Figure 2 This is a schematic diagram of the water inlet pipe structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the water inlet pipe structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the slide block structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting device structure of this utility model;

[0021] Figure 6 This utility model Figure 2 Enlarged view of part A;

[0022] Figure 7 This utility model Figure 3 Enlarged view of part B;

[0023] Figure 8 This is a schematic diagram of the second card block structure of this utility model.

[0024] In the diagram: 100, chassis; 110, inlet pipe; 120, outlet pipe; 200, filter cloth mounting device; 210, fixing frame; 220, limiting plate; 230, filter cloth body; 240, connecting rod; 250, action block; 260, first locking block; 270, first spring; 280, second locking block; 300, limiting device; 310, fixing plate; 320, insert block; 330, third locking block; 340, second spring; 400, sliding block. Detailed Implementation

[0025] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-8 A multi-layer liquid distribution device for a falling film evaporator includes a housing 100. An inlet pipe 110 is fixedly connected to the upper side of the housing 100, and an outlet pipe 120 is fixedly connected to the lower side of the housing 100. Multiple sets of filter cloth mounting devices 200 are evenly connected to the front side of the housing 100, and multiple sets of limiting devices 300 that match the filter cloth mounting devices 200 are connected to the rear side wall of the housing 100.

[0027] The filter cloth installation device 200 includes a fixed frame 210, with handles fixedly connected to both the left and right sides of the fixed frame 210. The handles effectively improve the stability of the fixed frame 210 during use. Limit plates 220 are fixedly connected to both the upper and lower sides of the fixed frame 210. The housing 100 has sliding grooves that match the limit plates 220 and the fixed frame 210. The limit plates 220, in conjunction with the housing 100, limit the front and rear positions of the fixed frame 210. A filter cloth body 230 is connected to the rear side of the fixed frame 210. Multiple sets of sliding block 400 are evenly connected to the inner wall of the housing 100. The front side of the filter cloth mounting device 200 has a sliding groove that matches the filter cloth mounting device 200. Two sets of connecting rods 240 are fixedly connected to the rear side of the filter cloth body 230. After the filter cloth body 230 enters the housing 100, during its backward movement, the filter cloth body 230 is located inside the sliding groove block 400. Then, the fixing frame 210 is inserted from the right side of the housing 100 into the front side of the fixing frame 210, thereby blocking the position of the filter cloth body 230. An actuating block 250 is fixedly connected to the rear side of the connecting rods 240, and a first locking block 260 is fixedly connected to the rear side of the actuating block 250. The first locking block 260... During the subsequent movement, the third locking block 330 is squeezed, and then the third locking block 330 locks in front of the first locking block 260, thus limiting the first locking block 260 and the filter cloth body 230. When the filter cloth body 230 needs to detach from the housing 100, the filter cloth body 230 continues to move backward until the actuating block 250 pushes the third locking block 330 open again. Then the actuating block 250 moves forward quickly. Before the third locking block 330 has time to limit the first locking block 260 again, the filter cloth body 230 quickly pulls the first locking block 260 and the actuating block 250 away from the actuating block 250. This is achieved by setting the filter cloth installation device 200. The filter cloth body 230 can be quickly installed, disassembled, and replaced, thereby effectively improving the ease of use of this device. The left and right sides of the fixing frame 210 are fixedly connected to the first spring 270, and the rear side of the first spring 270 is fixedly connected to the second locking block 280. The left and right sides of the fixing frame 210 are provided with sliding grooves that match the second locking block 280. By setting the first spring 270 and the second locking block 280 to cooperate, after the fixing frame 210 is placed, the left and right positions of the fixing frame 210 are limited by the second locking block 280, thereby improving the stability and safety of the device.

[0028] The limiting device 300 includes two sets of fixing plates 310. A plug block 320 is inserted into the body of each fixing plate 310. A third locking block 330 is fixedly connected to the opposite sides of each of the two sets of plug blocks 320. A second spring 340 is fixedly connected to the opposite sides of each of the two sets of plug blocks 320. The opposite sides of the two sets of second springs 340 are respectively fixedly connected to the opposite ends of the two sets of third locking blocks 330. The rear panel of the chassis 100 has a sliding groove matching the limiting device 300. When the third locking block 330 is pressed by the second locking block 280 and the first locking block 260, the second spring 340... The elastic force generated by the deformation of the 40 leads the third locking block 330 to return to its original position, thereby effectively limiting the filter cloth body 230 and improving the ease of use of this device. By setting the limiting device 300 to quickly limit and fix the filter cloth body 230, the stability of the filter cloth body 230 during use is improved. Multiple sets of sliding blocks 400 are evenly connected to the inner wall of the housing 100. The front side of the sliding block 400 is provided with a sliding groove that matches the filter cloth installation device 200. By setting the sliding block 400, the stability of the filter cloth body 230 during use is improved.

Claims

1. A multi-layer liquid distribution device for a falling film evaporator, characterized in that: Includes a housing (100), with an inlet pipe (110) connected to the upper side of the housing (100), an outlet pipe (120) connected to the lower side of the housing (100), multiple sets of filter cloth mounting devices (200) evenly connected to the front side of the housing (100), and multiple sets of limiting devices (300) matching the filter cloth mounting devices (200) connected to the rear side wall of the housing (100).

2. The multi-layer liquid distribution device for a falling film evaporator according to claim 1, characterized in that: The filter cloth installation device (200) includes a fixing frame (210), with limit plates (220) connected to both the upper and lower sides of the fixing frame (210). A filter cloth body (230) is provided on the rear side of the fixing frame (210), and two sets of connecting rods (240) are connected to the rear side of the filter cloth body (230). An action block (250) is connected to the rear side of the connecting rods (240), and a first locking block (260) is connected to the rear side of the action block (250).

3. The multi-layer liquid distribution device for a falling film evaporator according to claim 1, characterized in that: The limiting device (300) includes two sets of fixing plates (310). The body of the fixing plate (310) is connected to a plug (320). A third locking block (330) is connected to the opposite side of each of the two sets of plugs (320). A second spring (340) is connected to the opposite side of each of the two sets of plugs (320). The opposite sides of the two sets of second springs (340) are respectively connected to the opposite ends of the two sets of third locking blocks (330). The rear panel of the chassis (100) is provided with a sliding groove that matches the limiting device (300).

4. The multi-layer liquid distribution device for a falling film evaporator according to claim 2, characterized in that: The fixed frame (210) is connected to a first spring (270) on both the left and right sides. A second locking block (280) is connected to the rear side of the first spring (270). The fixed frame (210) is provided with a sliding groove that matches the second locking block (280) on both the left and right sides.

5. The multi-layer liquid distribution device for a falling film evaporator according to claim 1, characterized in that: The inner wall of the casing (100) is uniformly connected with multiple sets of sliding blocks (400), and the front side of the sliding block (400) is provided with a sliding groove that matches the filter cloth installation device (200).

6. A multi-layer liquid distribution device for a falling film evaporator according to claim 2, characterized in that: The fixed frame (210) is connected to handles on both the left and right sides.

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