A plate-type MVR evaporator with anti-scaling properties

Abstract

This utility model relates to the field of evaporator technology, and in particular to an anti-scaling plate-type MVR evaporator, which overcomes the shortcomings of existing technologies. It includes a base, a body, a mounting frame, and condenser plates. The base has a boss, the body is mounted on the boss, and a pipe is connected to the top of the body. A through mounting hole is opened in the middle of the body, and the mounting frame is placed in the mounting hole. Several condenser plates are evenly spaced between the side walls of the mounting frame. Each condenser plate has a movable shaft at its bottom that moves synchronously with it. The movable shaft slides between the inner walls of the mounting frame, and a gear is slidably mounted inside the mounting frame along a direction perpendicular to the length of the movable shaft. The gear can mesh with each movable shaft for transmission. A positioning element is also elastically mounted on one side of the bottom of the movable shaft inside the mounting frame. Compared with existing technologies, this utility model can effectively solve the problems of stubborn scaling and rapid replacement of condenser plates.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically to a plate-type MVR evaporator with anti-scaling properties. Background Technology

[0002] MVR evaporators are highly efficient and energy-saving evaporation devices that recover the heat energy of secondary steam through a compressor, reducing dependence on external heat sources. Plate-type MVR evaporators employ a plate heat exchange structure, offering advantages such as high heat transfer efficiency and small footprint, but they also suffer from problems such as easy scaling and difficult maintenance.

[0003] Chinese utility model patent CN222238780U discloses a plate-type MVR evaporator. This evaporator primarily uses a top slider that reciprocates within a groove in a central frame, continuously lifting the condenser plates located inside the frame. This vibrates the condenser plates at different positions, rubbing away scale buildup between them and cleaning away the adhered parts to maintain cleanliness. However, this prior art still has the following problems:

[0004] 1. Although this patent uses a top slider to vibrate the condenser plate to clean scale, the vibration method may not be able to completely remove stubborn scale, especially for highly adhesive deposits (such as silicates or organic pollutants), and the effect may not be ideal.

[0005] 2. Although the plan mentions that the condenser plate can be removed and replaced, in actual operation, the base and cover plate need to be removed, which is a complicated process and requires the machine to be shut down.

[0006] Therefore, we propose an anti-scaling plate-type MVR evaporator to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a plate-type MVR evaporator with anti-scaling properties to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A plate-type MVR evaporator with anti-scaling properties includes a base, a body, a mounting bracket, and condenser plates. The base is provided with a boss, the body is disposed on the boss, and a pipe is connected to the top of the body. A through mounting hole is opened in the middle of the body, the mounting bracket is disposed in the mounting hole, and a plurality of condenser plates are equally spaced between the side walls of the mounting bracket.

[0010] Each condenser plate has a movable shaft at its bottom that moves synchronously with it. The movable shaft slides between the inner walls of the fixed frame, and a gear is slidably installed inside the fixed frame along the length of the movable shaft. The gear can mesh with each movable shaft for transmission. A positioning element is also elastically installed on one side of the bottom of the movable shaft inside the fixed frame. The positioning element moves vertically and its top end can be inserted into the movable shaft.

[0011] According to the above technical solution, the condenser plate includes a limiting seat, a limiting strip, a plate body, and a connecting shaft. Four limiting seats are provided and are respectively fixed at the four corners of the plate body. The connecting shaft connects two limiting seats in the same horizontal direction, and the limiting strip connects two limiting seats in the same vertical direction.

[0012] The plate has a circulation inlet on one side wall and a circulation channel inside the plate. All circulation inlets on the plate are located in the same horizontal direction and are aligned front to back. A circulation pump is installed on the outer surface of the machine body. The outlet of the circulation pump is connected to the circulation inlet. A circulation outlet is provided at the bottom of the plate.

[0013] According to the above technical solution, a vertically arranged spring groove is provided inside the bottom end of the fixing frame. An adjustment hole is also provided on one side of the spring groove on the side wall of the fixing frame. The positioning component includes a positioning pin and a handle. The handle is fixed on the outer circumferential surface of the positioning pin and perpendicular to the height direction of the positioning pin. The handle slides between the inner walls of the adjustment hole, and the positioning pin slides between the inner walls of the spring groove. An adjustment spring is also connected between the bottom end of the positioning pin and the bottom end of the spring groove.

[0014] According to the above technical solution, the lower surface of the movable shaft is evenly provided with a number of toothed grooves along its length direction, and a connecting shaft two is fixed on the upper surface of the movable shaft. The top end of the connecting shaft two is connected and fixed to the bottom end of one of the limiting seats located below. Furthermore, a positioning groove matching the positioning pin is also provided on the lower surface of the movable shaft. The positioning groove is located on one side of the toothed groove.

[0015] According to the above technical solution, a groove is provided on the top surface of the boss, a screw is rotatably arranged in the groove, a rotary motor is connected to one end of the screw, and a "U"-shaped movable seat is slidably arranged between the inner walls of the groove, the screw passes through the movable seat and is threadedly driven with it.

[0016] According to the above technical solution, a gear shaft is passed through the middle of the gear and is slidably engaged with it by a key. The gear shaft also passes through the movable seat and is slidably engaged with it. A rotary motor is connected to one end of the gear shaft. Furthermore, a sensor is embedded in the side wall of the groove below each condenser plate.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0018] By incorporating a structure including a condenser plate, movable shaft, gears, a moving base, and positioning components, the moving base controls the meshing position of the gears. When the gears move to mesh with a particular movable shaft, the gear shaft drives the movable shaft to move linearly. This allows for the quick replacement of individual condenser plates without completely disassembling the outer casing, significantly improving the convenience of condenser plate replacement. Furthermore, by creating a circulation channel inside the plate and installing a circulation pump on the machine body, the cleaning agent is circulated to assist in dissolving scale, effectively solving the problem that vibration cleaning methods may not be able to completely remove stubborn scale. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is an installation diagram of a single condenser plate component of this utility model;

[0021] Figure 3 yes Figure 2 Front view structural diagram;

[0022] Figure 4 yes Figure 2 A magnified schematic diagram of part A in the middle.

[0023] In the diagram: 1. Base; 11. Boss; 111. Groove; 2. Body; 21. Pipe; 3. Fixing frame; 4. Condensation plate; 41. Limiting seat; 42. Limiting strip; 43. Plate; 44. Connecting shaft one; 5. Movable shaft; 51. Connecting shaft two; 6. Gear; 61. Gear shaft; 7. Moving seat; 71. Screw; 8. Positioning component. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-4 The present invention provides the following technical solution:

[0026] A plate-type MVR evaporator with anti-scaling properties includes a base 1, a body 2, a mounting bracket 3, and condenser plates 4. The base 1 has an integrally formed boss 11, and a switch controller is also fixedly installed on the base 1. The body 2 is fixed to the boss 11 by bolts, and a pipe 21 is installed on the top of the body 2 by threaded connection. A through mounting hole is opened in the middle of the body 2. The mounting bracket 3 is fixed to the inner wall of the mounting hole by screws. Several condenser plates 4 are evenly spaced on the side walls of the mounting bracket 3.

[0027] The condenser plate 4 includes a limiting seat 41, a limiting strip 42, a plate body 43, and a connecting shaft 44. There are four limiting seats 41, which are respectively connected and fixed to the four end corners of the plate body 43 by bolts. The connecting shaft 44 is fixedly connected between two limiting seats 41 in the same horizontal direction, and the limiting strip 42 is fixedly connected between two limiting seats 41 in the same vertical direction.

[0028] A circulation inlet is provided on one side wall of the plate 43, and a circulation channel (not shown in the figure) is provided inside the plate 43. After all the plates 43 are installed, the circulation inlets on all the plates 43 are located in the same horizontal direction and are aligned front to back in sequence. A circulation pump is installed on the outer surface of the machine body 2, and the outlet of the circulation pump is connected to the circulation inlet. A circulation outlet (not shown in the figure) is provided at the bottom of the plate 43.

[0029] It should be further explained that the scale on the plate 43 should be cleaned regularly. During cleaning, the circulation pump is started and connected to the cleaning agent delivery source. The cleaning agent flows into each plate 43 from the circulation inlet after passing through the circulation pump. After flowing from top to bottom, it flows out from the circulation outlet at the bottom and is collected and filtered for reuse.

[0030] Each condenser plate 4 has a movable shaft 5 at its bottom that moves synchronously with it. The movable shaft 5 slides between the inner walls of the fixed frame 3. The lower surface of the movable shaft 5 is evenly provided with several toothed grooves along its length. A connecting shaft 2 51 is fixed on the upper surface of the movable shaft 5. The top end of the connecting shaft 2 51 is connected and fixed to the bottom end of one of the lower limiting seats 41. A positioning groove matching the positioning pin is also provided on the lower surface of the movable shaft 5. The positioning groove is located on one side of the toothed groove.

[0031] It should be further explained that, under the action of the connecting shaft 51, the movable shaft 5 and the two limiting seats 41 located below form a synchronous movement state, so that the overall movement and adjustment of the condenser plate 4 can be achieved by simply controlling the movement process of the movable shaft 5.

[0032] A gear 6 is slidably arranged inside the fixed frame 3 along the length direction perpendicular to the movable shaft 5 (the gear 6 is always located above the top surface of the boss 11). The gear 6 can mesh with each movable shaft 5 for transmission. A groove 111 is provided on the top surface of the boss 11. A screw 71 is rotatably arranged in the groove 111. A rotary motor is connected to one end of the screw 71. A U-shaped movable seat 7 is slidably arranged between the inner walls of the groove 111. The screw 71 passes through the movable seat 7 and is threadedly driven with it. A gear shaft 61 passes through the middle of the gear 6 and is slidably engaged with it by a key. The gear shaft 61 also passes through the movable seat 7 and is slidably engaged with it. A rotary motor is connected to one end of the gear shaft 61. Furthermore, a sensor (not shown in the figure) is embedded on the side wall of the groove 111 below each condenser plate.

[0033] It should be further explained that gear 6 moves linearly in the initial (or reset) state of movable shaft 5, reciprocating between the tooth grooves at the bottom of each movable shaft 5. The positional accuracy is determined by the sensor settings, so that gear 6 can properly mesh with different movable shafts 5.

[0034] A positioning element 8 is elastically provided inside the fixed frame 3 on one side of the bottom of the movable shaft 5. The positioning element 8 moves vertically and its top end can be inserted into the movable shaft 5. A vertically arranged spring groove is provided inside the bottom end of the fixed frame 3. An adjustment hole is also provided on one side of the spring groove on the side wall of the fixed frame 3. The positioning element 8 includes a positioning pin and a handle. The handle is fixed on the outer circumference of the positioning pin and is perpendicular to the height direction of the positioning pin. The handle slides between the inner walls of the adjustment hole. The positioning pin slides between the inner walls of the spring groove. An adjustment spring is also connected between the bottom end of the positioning pin and the bottom end of the spring groove.

[0035] Working principle: When working, connect pipe 21, turn on the control switch of the evaporator, and plate 43 starts to work, releasing heat rapidly through condensation and evaporation;

[0036] When it is necessary to replace one of the plates 43, the rotary motor is started, causing the screw 71 to rotate and output, controlling the moving seat 7 and driving the gear 6 to slide and adjust in a straight line. When it moves to the position below the corresponding plate 43, the sensor at that position in the groove 111 is triggered, the rotary motor stops, and the gear 6 stops at this position. It should be noted that the movement of the gear 6 is performed in the initial / reset state, that is, when the movable shaft 5 is fully retracted into the fixed frame 3 and the positioning pin is inserted into the movable shaft 5. At this time, the tooth grooves on each movable shaft 5 are uniformly aligned, thus preventing... The misalignment of the tooth grooves on different movable shafts 5 may cause the gears 6 to fail to mesh. After adjusting the gears 6, manually press the handle downwards to move the positioning pin out of the positioning groove. At the same time, start the second rotary motor to make the gear shaft 61 drive the gear 6 to rotate, which in turn causes the movable shaft 5 to move the condenser plate 43 above it outwards. After it has moved out to the appropriate position, stop the second rotary motor and then replace the plate 43. After the replacement is completed, start the second rotary motor again and make it drive in reverse until the second rotary motor automatically resets and stops. Then release the handle to make the positioning pin spring upwards and lock into the positioning groove.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A scale resistant plate type MVR evaporator comprising a base (1), a machine body (2), a fixing frame (3) and a condensing plate member (4), characterized in that, The base (1) is provided with a boss (11), the body (2) is provided on the boss (11), and the top of the body (2) is connected to a pipe (21). A through mounting hole is provided in the middle of the body (2), the fixing frame (3) is provided in the mounting hole, and several condensing plates (4) are provided at equal intervals between the side walls of the fixing frame (3). Each condenser plate (4) has a movable shaft (5) that moves synchronously with it at its bottom. The movable shaft (5) slides between the inner walls of the fixed frame (3). A gear (6) is slidably arranged inside the fixed frame (3) along the length direction perpendicular to the movable shaft (5). The gear (6) can mesh with each movable shaft (5) for transmission. A positioning member (8) is also elastically arranged on one side of the bottom of the movable shaft (5) inside the fixed frame (3). The positioning member (8) moves in the vertical direction and its top end can be inserted into the movable shaft (5).

2. A scale resistant plate MVR evaporator according to claim 1, wherein, The condenser plate (4) includes a limiting seat (41), a limiting strip (42), a plate body (43), and a connecting shaft (44). There are four limiting seats (41) and they are fixed at the four corners of the plate body (43). The connecting shaft (44) connects two limiting seats (41) in the same horizontal direction, and the limiting strip (42) connects two limiting seats (41) in the same vertical direction. A circulation inlet is provided on one side wall of the plate (43), and a circulation channel is provided inside the plate (43). All circulation inlets on the plate (43) are located in the same horizontal direction and are arranged in sequence. A circulation pump is installed on the outer surface of the machine body (2). The outlet of the circulation pump is connected to the circulation inlet. A circulation outlet is provided at the bottom of the plate (43).

3. A scale resistant plate MVR evaporator according to claim 2, wherein, The bottom end of the fixing frame (3) is provided with a vertically arranged spring groove. One side of the spring groove is provided with an adjustment hole on the side wall of the fixing frame (3). The positioning component (8) includes a positioning pin and a handle. The handle is fixed on the outer circumference of the positioning pin and is perpendicular to the height direction of the positioning pin. The handle slides between the inner walls of the adjustment hole. The positioning pin slides between the inner walls of the spring groove. An adjustment spring is also connected between the bottom end of the positioning pin and the bottom end of the spring groove.

4. A scale resistant plate MVR evaporator according to claim 3, wherein, The lower surface of the movable shaft (5) is evenly provided with a number of toothed grooves along its length direction, and a connecting shaft two (51) is fixed on the upper surface of the movable shaft (5). The top end of the connecting shaft two (51) is connected and fixed to the bottom end of one of the lower limiting seats (41). A positioning groove matching the positioning pin is also provided on the lower surface of the movable shaft (5). The positioning groove is located on one side of the toothed groove.

5. A scale resistant plate MVR evaporator according to claim 4, wherein, The top surface of the boss (11) is provided with a groove (111), and a screw (71) is rotatably arranged in the groove (111). A rotary motor is connected to one end of the screw (71). A "U"-shaped movable seat (7) is slidably arranged between the inner walls of the groove (111). The screw (71) passes through the movable seat (7) and is threadedly driven with it.

6. A plate-type MVR evaporator for preventing scaling according to claim 5, characterized in that, The gear (6) is penetrated by a gear shaft (61) which is connected to the gear by a key and is also penetrated by the moving seat (7) and is in sliding fit with the moving seat (7), a rotary motor two is connected to one end of the gear shaft (61), and an inductor is embedded on the side wall in the groove (111) below each condensing plate.

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