High-efficiency MVR evaporation system

Abstract

The present invention relates to the field of wastewater treatment technology, and in particular to a high-efficiency MVR evaporation system. It comprises a shell and two partitions, the two partitions being fixedly connected to the shell, a number of heat exchange tubes being fixedly connected between the two partitions, a control assembly for the entry and exit of different materials being provided on the shell, and a cleaning assembly for cleaning scale being provided in the shell; the cleaning assembly comprises two sliding plates slidably connected to the shell, and elastic membranes having the same number as the heat exchange tubes being fixedly connected between the two sliding plates. The present invention isolates the heat exchange tubes through elastic membranes, causing scaling to occur on the elastic membrane partitions, and drives the two sliding plates to reciprocate in back and opposite directions, causing the elastic membrane to undergo elastic deformation, destroying the adhesion of scale blocks on the elastic membrane, and at the same time causing the elastic membrane to vibrate, facilitating the separation of scale blocks from the elastic membrane without the need for disassembly and cleaning, thereby greatly improving the cleaning efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a high-efficiency MVR evaporation system. Background Art

[0002] Evaporation and crystallization is an effective method for treating high-salt wastewater. Mechanical vapor compression (MVR) technology is considered an internationally leading evaporation and crystallization technology due to its advantages such as energy saving, environmental protection, pollution-free, and ability to recover crystallized salt. The MVR system only needs to introduce steam as a heat source during the startup phase. After secondary steam is generated and the system enters a stable operating state, no additional heat source is required, thereby significantly reducing energy consumption and operating costs.

[0003] The evaporator, steam compressor, condenser and circulating pump are the main components of the MVR system. The evaporator is the core equipment of the MVR system. It is used to heat high-salt wastewater to evaporate and generate steam. Usually, a falling film evaporator is used. The wastewater flows in the form of a thin film in the evaporator and can evaporate quickly after being heated.

[0004] However, during the operation of existing falling film evaporators, waste liquid easily forms scale at the heating position of the evaporator, seriously affecting the efficiency and service life of the evaporator. Currently, chemical cleaning or disassembly and cleaning methods are mainly used, but these methods are not only time-consuming and labor-intensive, but also inefficient, and have high cleaning costs, and may also have negative impacts on the environment and equipment. Summary of the Invention

[0005] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a high-efficiency MVR evaporation system.

[0006] The technical solution of the present invention is: a high-efficiency MVR evaporation system, comprising an outer shell and two partitions, the two partitions being fixedly connected in the outer shell, a plurality of heat exchange tubes being fixedly connected between the two partitions, the outer shell being provided with a control component for the entry and exit of different materials, and the outer shell being provided with a cleaning component for cleaning scale; the cleaning component comprising two sliding plates slidably connected in the outer shell, the two partitions being located between the two sliding plates, elastic membranes having the same number as the heat exchange tubes being fixedly connected between the two sliding plates, a plurality of the elastic membranes being located in adjacent heat exchange tubes, and the elastic membranes being in contact with the inner walls of adjacent heat exchange tubes, and a driving component for driving the two sliding plates to move being provided in the outer shell.

[0007] As a further preferred solution, the upper sliding plate is provided with annular cavities having the same number as the heat exchange tubes, a number of the annular cavities are concentrically distributed with adjacent heat exchange tubes, and two adjacent annular cavities are connected to each other.

[0008] As a further preferred solution, the outer wall height of the annular cavity is higher than the inner wall height, so that the liquid in the annular cavity overflows into the adjacent heat exchange tube.

[0009] As a further preferred solution, a dividing plate is fixedly connected to the outer shell, and a number of telescopic sleeves are fixedly connected to the dividing plate. The telescopic sleeves pass through the dividing plate, and the upper sliding plate is provided with grooves with the same number as the telescopic sleeves. The grooves are staggered with the adjacent annular cavities and are interconnected. The telescopic sleeves are used to inject liquid into the adjacent grooves.

[0010] The driving member is a chain which has a first end fixed to the side panel that is located adjacent the top panel and a second end of the driving member is engaged with the first and second gears and is then connected to the transmission gear of the transmission gear.

[0011] As a further preferred solution, the outer chute and the inner chute are both formed by staggered connection of a plurality of vertical chute and a plurality of inclined chute, and the inclined chute of the outer chute and the inclined chute of the inner chute are in opposite directions.

[0012] As a further preferred solution, a pocket plate is fixedly connected to the bottom of the shell, and the pocket plate is located below all the sliding plates to block scale blocks falling into the heat exchange tubes.

[0013] As a further preferred solution, the rotating shaft is rotatably connected to a pressure roller, the pressure roller is in contact with the upper side of the pocket material plate, and the rotating shaft is fixedly connected to a circumferentially distributed rotating plate, which is located below the pocket material plate.

[0014] As a further preferred solution, the rotating shaft is fixedly connected to a fixing frame, the fixing frame is slidably connected to a knocking frame, a third elastic member is provided between the knocking frame and the fixing frame, the knocking frame is fitted with the upper side surface of the pocket plate, and a trigger component for driving the knocking frame to move is provided at the bottom of the shell.

[0015] As a further preferred solution, the trigger assembly includes a trigger block, which is fixedly connected to the knocking frame. The bottom of the shell is fixedly connected to a fixing ring, and the fixing ring is fixedly connected to circumferentially distributed extrusion blocks. The extrusion blocks are used to drive the knocking frame to slide along the fixed frame through the trigger block.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention isolates the heat exchange tubes through an elastic membrane, so that scaling occurs on the elastic membrane partition, and drives the two sliding plates to move back and forth in opposite directions, causing the elastic membrane to undergo elastic deformation, destroying the adhesion state of scale blocks on the elastic membrane, and at the same time causing the elastic membrane to vibrate, which facilitates the separation of scale blocks from the elastic membrane without the need for disassembly and cleaning, greatly improving the cleaning efficiency.

[0017] 2. By distributing the annular cavity and the adjacent heat exchange tubes concentrically and injecting waste liquid into several grooves based on the principle of communicating vessels, the waste liquid overflows from the annular cavity into the heat exchange tubes, ensuring that the waste liquid evenly enters several heat exchange tubes, thereby improving the utilization rate of the heat exchange tubes.

[0018] 3. By placing the scale blocks on the bag material plate, crushing the scale blocks on the bag material plate, and making the bag material plate vibrate, the scale blocks are broken down into small pieces and discharged from the liquid outlet pipe under the drive of clean water, reducing the probability of scale blocks being too large to be discharged or blocking the liquid outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 is a schematic cross-sectional view of the three-dimensional structure of the housing of the present invention;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the sliding plate and the elastic membrane of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the material dividing plate and the telescopic sleeve of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the telescopic sleeve and the groove of the present invention;

[0024] Figure 6 Schematic diagram of the three-dimensional structure of the annular cavity of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the sliding column and the connecting cylinder of the present invention;

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the first card block and the second card block of the present invention;

[0027] Figure 9Schematic diagram of the three-dimensional structure of the outer chute and the inner chute of the present invention;

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the pocket plate and the pressing roller of the present invention;

[0029] Figure 11 Schematic diagram of the three-dimensional structure of the fixing frame and the striking frame of the present invention;

[0030] Figure 12 This is a diagram of the evaporation system of the present invention.

[0031] Marked in the figure: 101-shell, 102-partition, 103-heat exchange tube, 104-feed cavity, 105-heat exchange cavity, 106-discharge cavity, 107-feed pipe, 108-liquid outlet pipe, 109-steam discharge pipe, 110-vent pipe, 111-sliding plate, 112-elastic membrane, 201-annular cavity, 202-distribution plate, 203-telescopic sleeve, 204-groove, 301-connecting cylinder, 302-first elastic Parts, 303-first clamping block, 304-sliding column, 305-second elastic member, 306-second clamping block, 307-servo motor, 308-rotating shaft, 309-rotating cylinder, 310-outer slide, 311-inner slide, 401-pocket plate, 402-pressing roller, 403-rotating plate, 404-fixed frame, 405-knocking frame, 406-third elastic member, 407-trigger block, 408-fixing ring, 409-extrusion block. DETAILED DESCRIPTION

[0032] To make the above-mentioned purposes, features, and advantages of this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and specific embodiments. It is obvious that the embodiments described are only a portion of the embodiments of this application, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0033] The existing falling film evaporator has the following problems during operation:

[0034] Scaling: Wastewater easily forms scale in the evaporator heating area, affecting efficiency and lifespan. Existing cleaning methods are time-consuming, labor-intensive, and costly, and can negatively impact the environment and equipment.

[0035] Uneven distribution of waste liquid: When the waste liquid enters the evaporator, due to the uneven distribution of the heat exchange tubes, it tends to flow to some areas first, resulting in insufficient waste liquid in other areas, dry wall phenomenon, reduced heat exchange efficiency and aggravated scaling. Example 1

[0036] This embodiment discloses a high-efficiency MVR evaporation system, such as Figure 1-Figure 4 and Figure 12 As shown, it includes a shell 101 and two partitions 102, the two partitions 102 are symmetrically fixedly connected to the shell 101, and a number of heat exchange tubes 103 are fixedly connected between the two partitions 102. The shell 101 is provided with a control component for the entry and exit of different materials, and the shell 101 is provided with a cleaning component for cleaning scale; the cleaning component includes two sliding plates 111 slidably connected to the shell 101, the two partitions 102 are located between the two sliding plates 111, and the same number of elastic membranes 112 as the number of heat exchange tubes 103 are fixedly connected between the two sliding plates 111. Several elastic membranes 112 are located in adjacent heat exchange tubes 103, and the elastic membranes 112 are in contact with the inner walls of the adjacent heat exchange tubes 103. The elastic membranes 111 2 is made of silicone rubber, which has excellent high temperature resistance, excellent elasticity and air tightness. There is a gap between the partition 102 and the adjacent sliding plate 111. The elastic membrane 112 may separate from the adjacent heat exchange tube 103 due to aging, thereby generating a gap. The above two gaps are interconnected and form a closed cavity. A pipeline can be opened at the partition 102. The pipeline is connected to the gap between the partition 102 and the adjacent sliding plate 111. The pipeline is connected to the external negative pressure device to keep the closed cavity in a negative pressure state. The elastic membrane 112 will fit tightly against the inner wall of the adjacent heat exchange tube 103 (not shown in the figure) to increase the evaporation rate of the waste liquid. A driving component for driving the two sliding plates 111 to move is provided in the housing 101.

[0037] like Figure 1 and Figure 2 As shown, the control assembly specifically includes: a feed pipe 107, a liquid outlet pipe 108, a steam outlet pipe 109 and two connecting pipes 110, the feed pipe 107 is fixedly connected to the top of the shell 101, the liquid outlet pipe 108 is fixedly connected to the bottom of the shell 101, the steam outlet pipe 109 is fixedly connected to the lower part of the shell 101, and the two connecting pipes 110 are fixedly connected to the middle of the shell 101. The two partitions 102 divide the shell 101 into a feed chamber 104 at the top, a heat exchange chamber 105 in the middle and a discharge chamber 106 at the bottom. The two connecting pipes 110 are respectively located in the middle heat exchange chamber 104. 05, the top and bottom of the feed chamber 104 are connected with the discharge chamber 106 through a plurality of heat exchange tubes 103, and the plurality of heat exchange tubes 103 are located in the heat exchange chamber 105. The feed pipe 107 is connected with the feed chamber 104 and is used to inject waste liquid into the feed chamber 104. The liquid discharge pipe 108 and the steam discharge pipe 109 are both connected with the discharge chamber 106. The liquid discharge pipe 108 is used to discharge the concentrated liquid, and the steam discharge pipe 109 is used to discharge the steam. The two connecting pipes 110 are both connected with the heat exchange chamber 105, the upper connecting pipe 110 is used for steam injection, and the lower connecting pipe 110 is used for discharging condensed water.

[0038] like Figure 3-Figure 6As shown, the upper sliding plate 111 is provided with annular cavities 201 with the same number as the heat exchange tubes 103, and a plurality of annular cavities 201 are concentrically distributed with adjacent heat exchange tubes 103. Two adjacent annular cavities 201 are connected to each other, and the outer wall height of the annular cavity 201 is higher than the inner wall height, so that the liquid in the annular cavity 201 overflows into the adjacent heat exchange tube 103. A dividing plate 202 is fixedly connected to the top of the shell 101. The dividing plate 202 is truncated cone-shaped, and a plurality of telescopic sleeves 203 are fixedly connected to the outer edge of the dividing plate 202 to allow the waste liquid to flow from the middle of the dividing plate 202 to the outer edge. The telescopic sleeve 203 moves and then enters the telescopic sleeve 203. The telescopic sleeve 203 passes through the dividing plate 202. The telescopic end of the telescopic sleeve 203 slides with the sliding plate 111. The upper sliding plate 111 is provided with grooves 204 with the same number as the telescopic sleeve 203. The grooves 204 are staggered with the adjacent annular cavities 201 and are interconnected. The grooves 204 have the same depth as the annular cavities 201. The bottom of the telescopic sleeve 203 is located in the adjacent grooves 204, forming a communicating vessel principle, which makes the liquid level in the annular cavity 201 rise steadily. The telescopic sleeve 203 is used to inject liquid into the adjacent grooves 204.

[0039] The above setting can achieve that the waste liquid in the feed pipe 107 is evenly dispersed and flows toward the edge under the action of the dividing plate 202, and flows downward along the telescopic sleeve 203 into the corresponding groove 204, and the waste liquid in several grooves 204 flows into all annular cavities 201. When all annular cavities 201 contain waste liquid, the liquid level height of the waste liquid in all grooves 204 and all annular cavities 201 remains the same and continues to rise until the liquid level height of the waste liquid is higher than the height of the inner wall of the annular cavity 201. At this time, the waste liquid begins to stably overflow from the annular cavity 201 into the corresponding heat exchange tube 103.

[0040] like Figure 2-Figure 4 、 Figure 7 and Figure 8 As shown, the driving assembly includes a connecting cylinder 301, which is fixedly connected to the sliding plate 111 below, and the material dividing plate 202, the two partitions 102 and the upper sliding plate 111 are all slidingly connected to the connecting cylinder 301, and the central axis of the connecting cylinder 301 is the same as the central axis of the sliding plate 111. The connecting cylinder 301 passes through the upper sliding plate 111, and a first elastic member 302 is provided between the connecting cylinder 301 and the material dividing plate 202. The first elastic member 302 is a spring, which is used to drive the connecting cylinder 301 to reset. The connecting cylinder 301 is fixedly connected to a first clamping block 303, and the upper sliding plate 111 is fixedly connected to a sliding column 304. The sliding column 304 is slidingly connected to the material dividing plate 202. A second elastic member 305 is provided between the sliding column 304 and the material dividing plate 202. The second elastic member 305 is a spring, which is used to drive the sliding column 304 to reset. The sliding column 304 is fixedly connected to a second clamping block 306.

[0041] like Figure 2-Figure 4 and Figure 7-Figure 9 As shown, the top of the housing 101 is fixedly connected to a servo motor 307, and the output shaft of the servo motor 307 is fixedly connected to a rotating shaft 308. The central axis of the rotating shaft 308, the central axis of the housing 101 and the central axis of the connecting cylinder 301 coincide with each other, and the rotating shaft 308 is located inside the connecting cylinder 301. The rotating shaft 308 rotates and slides with the connecting cylinder 301. The rotating shaft 308 is fixedly connected to a rotating cylinder 309 located in the feeding chamber 104. The outer wall and the inner wall of the rotating cylinder 309 are respectively provided with an outer slide groove 310 and an inner slide groove 311. The first block 303 slides in the inner slide groove 311, and the second block 306 slides in the inner slide groove 311. When sliding in the outer slide groove 310, the outer slide groove 310 and the inner slide groove 311 are both composed of a plurality of vertical grooves and a plurality of inclined grooves staggered end to end, and the inclined grooves of the outer slide groove 310 and the inclined grooves of the inner slide groove 311 are inclined in opposite directions. The number of vertical grooves and inclined grooves on the outer slide groove 310 is the same as the number of vertical grooves and inclined grooves on the inner slide groove 311, and the vertical grooves have the same height, that is, the vertical grooves of the outer slide groove 310 and the vertical grooves of the inner slide groove 311 are in an aligned state. In the initial state, the second blocking block 306 is located at the bottom of the vertical groove of the outer slide groove 310, and the first blocking block 303 is located at the top of the vertical groove of the inner slide groove 311.

[0042] The above arrangement can realize that the output shaft of the servo motor 307 drives the rotating shaft 308 to rotate counterclockwise (in Figure 8 When the first and second clamping plates 303 and 306 are in the same position, the first and second clamping plates 303 and 306 are in the same position, and the first and second clamping plates 303 and 306 are in the same position, so that ...

[0043] The operation process of this embodiment is as follows:

[0044] The waste liquid enters the feed chamber 104 from the feed pipe 107, flows downward and contacts the distributor plate 202, and disperses along the distributor plate 202 to enter the plurality of telescopic sleeves 203, and the waste liquid flows downward along the plurality of telescopic sleeves 203 into the corresponding grooves 204 on the upper sliding plate 111, and then the waste liquid in the plurality of grooves 204 flows into the plurality of annular cavities 201, and so on until the liquid level of the waste liquid is higher than the height of the inner wall of the annular cavity 201, at this time the waste liquid in the annular cavity 201 begins to overflow into the heat exchange tube 103, so that the waste liquid adheres to the elastic membrane 112 and flows downward, and at the same time, the high-temperature steam flows along the upper connecting pipe 110 enters the heat exchange chamber 105, releases heat to generate condensed water and is discharged from the lower connecting pipe 110, so that the high-temperature steam in the heat exchange chamber 105 heats the waste liquid flowing along the elastic membrane 112, vaporizes the water in the waste liquid in the heat exchange tube 103, and concentrates and evaporates the waste liquid. Then the concentrated liquid flows into the discharge chamber 106 and is discharged along the liquid discharge pipe 108, and the steam is discharged along the steam discharge pipe 109. This cycle continues until the evaporation of the waste liquid is completed. At this time, the injection of waste liquid and high-temperature steam is turned off, and the concentrated liquid in the discharge chamber 106 is emptied. When the waste liquid needs to be evaporated again, the above steps are repeated.

[0045] When the waste liquid flows along the heat exchange tube 103 and evaporates the internal water, some substances in the waste liquid will precipitate and adhere to the elastic membrane 112 to form scale blocks. After the waste liquid is evaporated, it needs to be cleaned regularly. At this time, the servo motor 307 is turned on, and the output shaft of the servo motor 307 drives the outer slide 310 and the inner slide 311 to rotate in the same direction through the rotating shaft 308 and the rotating cylinder 309. The outer slide 310 and the inner slide 311 respectively drive the sliding column 304 and the connecting cylinder 301 to perform a cyclic reciprocating motion through the second block 306 and the first block 303, and the sliding column 304 and the connecting cylinder 301 first move slowly back to back, and then move quickly towards each other, and so on. The cycle drives the two sliding plates 111 to move synchronously, so that the two sliding plates 111 pull several elastic The elastic membrane 112 is stretched and deformed by the pulling force, thereby destroying the adhesion state of the scale blocks on the elastic membrane 112. Then the two sliding plates 111 are quickly reset, and the elastic membrane 112 is synchronously and quickly reset to form vibration. The scale blocks attached to the elastic membrane 112 are separated from each other by the vibration force, so that the scale blocks fall into the discharge chamber 106. During this period, the feed pipe 107 can be injected with clean water, so that the cleaned scale blocks can be discharged along the liquid outlet pipe 108 with the help of the flow of clean water. When the cleaning is completed, the output shaft of the servo motor 307 drives the rotating drum 309 to reset to the initial position. Similarly, the two sliding plates 111 are reset to the initial position, the servo motor 307 is turned off and the injection of clean water into the feed pipe 107 is stopped. When the device needs to be cleaned again, the above steps are repeated. Example 2

[0046] This embodiment discloses a high-efficiency MVR evaporation system, which, based on the first embodiment, further has the function of assisting in the discharge of scale.

[0047] After the scale is cleaned, due to their different sizes, small scale will be discharged under the influence of water flow, while large scale will easily remain in the evaporator and even block the discharge pipe. This situation not only increases the difficulty of cleaning, but also causes equipment failure and affects normal operation.

[0048] On the basis of Example 1, Figure 2 and Figure 10 As shown, the bottom of the shell 101 is fixedly connected to a pocket plate 401, which is located below all sliding plates 111 and between the steam exhaust pipe 109 and the liquid outlet pipe 108, and is used to block scale blocks falling from the heat exchange tube 103. Through holes are evenly distributed on the pocket plate 401, and the rotating shaft 308 is rotatably connected to a pressure roller 402, which fits the upper side of the pocket plate 401. The pressure roller 402 can rotate around the upper side of the pocket plate 401 under the drive of the rotating shaft 308. A protrusion can be provided on the outside of the pressure roller 402 to increase the crushing force on the scale blocks. The rotating shaft 308 is fixedly connected to a circumferentially distributed rotating plate 403, which is located below the pocket plate 401. The shape of the rotating plate 403 can be freely set, such as a rectangular plate and a spiral plate. The rotating plates 403 are evenly spaced on the side walls of the rotating shaft 308 to uniformly disturb the water flow.

[0049] The above setting can be realized. When the rotating shaft 308 cleans the scale on the elastic membrane 112, the rotating shaft 308 drives the pressure roller 402 to rotate to crush the scale on the bag plate 401, so that the scale can fall downward along the through hole on the bag plate 401. The rotating shaft 308 drives the rotating plate 403 to rotate and stir the water flow, so that the water flow drives the scale to rotate synchronously and suspend it in the water, reducing the probability of it sinking to the bottom.

[0050] like Figure 2 、 Figure 10 and Figure 11 As shown, the rotating shaft 308 is fixedly connected to the fixing frame 404, and the fixing frame 404 is slidably connected to the knocking frame 405. A third elastic member 406 is provided between the knocking frame 405 and the fixing frame 404. The third elastic member 406 is a tension spring and is initially in a stretched state, used to drive the knocking frame 405 to hit the pocket plate 401, causing it to vibrate. The knocking frame 405 is in contact with the upper side of the pocket plate 401, and a trigger assembly for driving the knocking frame 405 to move is provided at the bottom of the shell 101. The trigger assembly includes a trigger block 407, which is fixedly connected to the knocking frame 405. The bottom of the shell 101 is fixedly connected to a fixing ring 408, and the fixing ring 408 is fixedly connected to a circumferentially distributed extrusion block 409. The extrusion block 409 is a right triangle, and the long right-angled surface of the extrusion block 409 is in contact with the fixing ring 408. The extrusion block 409 is used to drive the knocking frame 405 to slide along the fixing frame 404 through the trigger block 407.

[0051] The above setting can be realized, the rotating shaft 308 drives the trigger block 407 to rotate through the fixed frame 404 and the knocking frame 405, the trigger block 407 rotates and contacts the extrusion block 409, and slides along the inclined surface of the extrusion block 409, so that the knocking frame 405 slides upward along the fixed frame 404, the knocking frame 405 is separated from the pocket plate 401, and the third elastic member 406 is further stretched, so that when the trigger block 407 is separated from the inclined surface of the extrusion block 409, the knocking frame 405 quickly hits the pocket plate 401 under the action of the tensile force of the third elastic member 406, and this cycle causes the pocket plate 401 to generate a vibration force.

[0052] The working process of this embodiment is as follows:

[0053] Since the scale blocks on the elastic membrane 112 are separated from each other by the vibration force, the particle size of the scale blocks is difficult to control. There may be a situation where the particles of the scale blocks are too large to be discharged along the liquid outlet pipe 108, thereby blocking the liquid outlet pipe 108. When the scale blocks fall downward, they will first fall onto the pocket plate 401. At this time, the rotating shaft 308 will drive the pressure roller 402 to rotate synchronously, so that the pressure roller 402 will crush the scale blocks that fall on the pocket plate 401 and crush the scale blocks into small pieces, which are convenient for falling downward along the through holes on the pocket plate 401. At the same time, the rotating shaft 308 drives the rotating plate 403 to rotate, stirring the clean water in the discharge chamber 106, so that the clean water drives the scale blocks to rotate synchronously, thereby preventing the scale blocks from depositing.

[0054] When the rotating shaft 308 rotates, the rotating shaft 308 drives the fixed frame 404 and the knocking frame 405 thereon to rotate synchronously, so that the knocking frame 405 drives the trigger block 407 to slide along the fixed ring 408, and the trigger block 407 reciprocates in contact with the extrusion block 409. The extrusion block 409 drives the knocking frame 405 to slide reciprocatingly along the fixed frame 404 through the trigger block 407, so that the knocking frame 405 knocks the pocket plate 401, and the pocket plate 401 vibrates when knocked, so that the scale on the pocket plate 401 and in the through hole of the pocket plate 401 fall downward due to the vibration, and the scale is discharged along the liquid outlet pipe 108 driven by the clean water, and this is done until the cleaning of the device is completed. When the device needs to be cleaned again, the above steps are repeated.

[0055] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-efficiency MVR evaporation system, comprising a housing (101) and two partitions (102), wherein the two partitions (102) are fixedly connected to the housing (101), a plurality of heat exchange tubes (103) are fixedly connected between the two partitions (102), and a control component for the inflow and outflow of different materials is provided on the housing (101), characterized in that: A cleaning component for cleaning scale is provided in the housing (101); The cleaning component includes two sliding plates (111) slidably connected to the shell (101), the two partitions (102) are located between the two sliding plates (111), and elastic membranes (112) are fixedly connected between the two sliding plates (111) and the same number as the heat exchange tubes (103). Several elastic membranes (112) are located in adjacent heat exchange tubes (103), and the elastic membranes (112) are in contact with the inner walls of the adjacent heat exchange tubes (103). A driving component for driving the two sliding plates (111) to move is provided in the shell (101).

2. A high-efficiency MVR evaporation system according to claim 1, characterized in that: The upper sliding plate (111) is provided with annular cavities (201) having the same number as the heat exchange tubes (103), and a plurality of the annular cavities (201) are concentrically distributed with adjacent heat exchange tubes (103), and two adjacent annular cavities (201) are connected to each other.

3. A high-efficiency MVR evaporation system according to claim 2, characterized in that: The outer wall height of the annular cavity (201) is higher than the inner wall height, so that the liquid in the annular cavity (201) overflows into the adjacent heat exchange tube (103).

4. A high-efficiency MVR evaporation system according to claim 3, characterized in that: A material dividing plate (202) is fixedly connected to the outer shell (101), and a plurality of telescopic sleeves (203) are fixedly connected to the material dividing plate (202). The telescopic sleeves (203) pass through the material dividing plate (202). The upper sliding plate (111) is provided with grooves (204) having the same number as the telescopic sleeves (203). The grooves (204) are staggered with adjacent annular cavities (201) and are interconnected. The telescopic sleeves (203) are used to inject liquid into adjacent grooves (204).

5. The high-efficiency MVR evaporation system according to claim 4, characterized in that: The driving assembly includes a connecting tube (301), the connecting tube (301) is fixedly connected to the sliding plate (111) below, the material dividing plate (202), the two partitions (102) and the upper sliding plate (111) are all slidably connected to the connecting tube (301), a first elastic member (302) is provided between the connecting tube (301) and the material dividing plate (202), the connecting tube (301) is fixedly connected to a first clamping block (303), the upper sliding plate (111) is fixedly connected to a sliding column (304), the sliding column (304) is slidably connected to the material dividing plate (202), and the sliding column (304) is slidably connected to the material dividing plate (202). ), the sliding column (304) is fixedly connected to a second clamping block (306), the housing (101) is fixedly connected to a servo motor (307), the output shaft of the servo motor (307) is fixedly connected to a rotating shaft (308), the rotating shaft (308) is rotatably and slidably connected to the connecting cylinder (301), the rotating shaft (308) is fixedly connected to a rotating cylinder (309), the outer side wall and the inner side wall of the rotating cylinder (309) are respectively provided with an outer sliding groove (310) and an inner sliding groove (311), the first clamping block (303) slides in the inner sliding groove (311), and the second clamping block (306) slides in the outer sliding groove (310).

6. The high-efficiency MVR evaporation system according to claim 5, characterized in that: The outer chute (310) and the inner chute (311) are both formed by staggered connection of a plurality of vertical chute and a plurality of inclined chute, and the inclined chute of the outer chute (310) and the inclined chute of the inner chute (311) are in opposite directions.

7. The high-efficiency MVR evaporation system according to claim 6, characterized in that: A pocket plate (401) is fixedly connected to the bottom of the shell (101), and the pocket plate (401) is located below all the sliding plates (111) and is used to block scale blocks that fall into the heat exchange tube (103).

8. The high-efficiency MVR evaporation system according to claim 7, characterized in that: The rotating shaft (308) is rotatably connected to a pressure roller (402), and the pressure roller (402) is in contact with the upper side of the pocket material plate (401). The rotating shaft (308) is fixedly connected to a circumferentially distributed rotating plate (403), and the rotating plate (403) is located below the pocket material plate (401).

9. The high-efficiency MVR evaporation system according to claim 8, characterized in that: The rotating shaft (308) is fixedly connected to a fixing frame (404), and the fixing frame (404) is slidably connected to a knocking frame (405). A third elastic member (406) is provided between the knocking frame (405) and the fixing frame (404). The knocking frame (405) is in contact with the upper side surface of the pocket plate (401), and a trigger component for driving the knocking frame (405) to move is provided at the bottom of the housing (101).

10. The high-efficiency MVR evaporation system according to claim 9, characterized in that: The trigger assembly includes a trigger block (407), the trigger block (407) is fixedly connected to the knock frame (405), a fixing ring (408) is fixedly connected to the bottom of the housing (101), and the fixing ring (408) is fixedly connected to circumferentially distributed extrusion blocks (409), and the extrusion blocks (409) are used to drive the knock frame (405) to slide along the fixing frame (404) through the trigger block (407).

Images