Falling film evaporation equipment

Abstract

The invention discloses falling film evaporation equipment, and relates to the technical field of falling film evaporation, and the falling film evaporation equipment comprises a rotating mechanism. According to the falling film evaporation equipment, through the design of the rotating mechanism, after liquid enters from the feeding port, the liquid washes the blades, the stress area of the blades to the liquid is increased, so that the effect of enlarging the rotating effect is achieved, the blades drive the rotating shaft to rotate, and the square plate is driven to rotate in the rotating process of the rotating shaft; the liquid flowing range is increased by stirring the liquid, so that the liquid flowing uniformity is improved, then the square notches are formed, the resistance borne by the square plates during rotation in the fluid is reduced through the open grooves, the energy consumption is reduced, and the uniform mixing of the materials is promoted; the stirring efficiency and quality are improved, the space with liquid is increased, and liquid attachment residues are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of falling film evaporation, in particular to falling film evaporation equipment. Background Art

[0002] Falling film evaporation equipment is mainly used for evaporation and concentration of liquids. Its working principle is to evenly distribute the liquid to be evaporated on the inner wall of the heating tube through a liquid distributor to form a layer of liquid film, which flows downward along the inner wall of the heating tube under the action of gravity. In this process, the liquid continuously absorbs heat and evaporates, and the steam is discharged from the top of the heating tube, thereby achieving the concentration of the liquid. Falling film evaporation equipment has many advantages, such as high heat transfer efficiency, fast evaporation speed, short material residence time, and the ability to better maintain the characteristics of the material. It is widely used in many industries such as food, chemical, and pharmaceutical industries to concentrate various solutions and extract effective ingredients.

[0003] During the liquid concentration process, fine particles circulate with the liquid, making it easy for them to move inside the equipment and accumulate, causing blockage inside the equipment, thereby contaminating the liquid added again and affecting the quality of subsequent concentration. It is easy for the liquid to be uneven during concentration, so a new design was made to prevent blockage during feeding. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a falling film evaporation device, comprising: A frame, which is used to support the falling film evaporation equipment; An evaporation mechanism, which is used to heat the material; A separation mechanism, which is used to recover gas and liquid of the material; The bottom of the evaporation mechanism is fixedly connected to the outside of the frame, and the outside of the evaporation mechanism is fixedly connected to the outside of the separation mechanism; The evaporation mechanism comprises a column shell, a feed inlet is fixedly connected to the top of the column shell, a rotating mechanism is fixedly connected to the bottom of the feed inlet, an injection plate is fixedly connected to the inner wall of the column shell close to the rotating mechanism, a delivery pipe groove is provided on the outside of the injection plate, and liquid enters the column shell from the feed inlet, contacts the rotating mechanism and the buffer mechanism in the process of flowing downward, and then flows to the injection plate, and flows to the heat exchange tube through the delivery pipe groove, wherein the delivery pipe groove adopts a structure with wide ends and a narrowed diameter in the middle, and according to the Bernoulli principle, the pipe diameter is reduced to achieve the effect of increasing the flow speed, so The top of the injection plate is fixedly connected with a buffer mechanism, the side of the column shell away from the injection plate is fixedly connected with a heat exchange tube, and the steam inlet is connected to the steam pipeline to evaporate the liquid inside the heat exchange tube to achieve the effect of concentrating the liquid. The outside of the column shell is fixedly connected with a steam inlet, and the bottom of the column shell is fixedly connected with a receiving base, and the bottom of the inner wall of the receiving base is fixedly connected with a filtering mechanism, and the bottom of the receiving base is fixedly connected with a first discharge port. After evaporation, the liquid is separated into two forms of gas and liquid inside the receiving base, and the liquid part is transported out through the first discharge port, and the gas part flows into the separation mechanism. The rotating mechanism includes a connecting plate, a receiving plate is fixedly connected to the bottom of the connecting plate, a rotating shaft is rotatably connected to the outside of the receiving plate, a paddle is fixedly connected to the side of the rotating shaft close to the receiving plate, after the liquid enters from the feed inlet, the liquid flushes the paddle, and the paddle increases the force area on the liquid, so as to achieve the effect of expanding the rotation effect, a connecting frame is fixedly connected to the side of the rotating shaft away from the paddle, and a square plate is fixedly connected to the outside of the connecting frame, the rotating shaft is driven to rotate by the paddle, and the square plate is driven to rotate during the rotation of the rotating shaft, so as to achieve the stirring of the liquid, so that the liquid raw material is not easy to accumulate, and the liquid flow range is increased by stirring the liquid, so as to improve the uniformity of the liquid flow, the square plate is provided with a square incision on the outside, and then the square incision is provided, and the groove helps to reduce the resistance of the square plate when it rotates in the fluid, thereby reducing energy consumption, promoting uniform mixing of materials, improving stirring efficiency and quality, and increasing the space with the liquid, reducing liquid attachment residue.

[0005] Preferably, the buffer mechanism includes a support column, the bottom of which is fixedly connected to the top of the injection plate, the outside of the support column is slidably connected to a sliding column, and a spring bar is placed inside the sliding column. After the liquid enters from the feed inlet, it impacts the support top plate. The pressure generated by the impact causes the sliding column to slide toward the bottom of the support column, causing the spring bar to be squeezed and contracted, thereby achieving the effect of shock absorption and buffering, avoiding violent collision of the liquid, and preventing the liquid from splashing and affecting the conveying effect. Secondly, as the liquid increases, the outside of the sliding column is fixedly connected to a connecting frame, and the side of the connecting frame away from the sliding column is fixedly connected to an annular frame, and the top of the annular frame is fixedly connected to a folding plate, gravity causes the middle of the connecting frame to bend, and the folding plate contracts downward from the supporting state, thereby guiding the liquid and accelerating the uniform diffusion of the liquid to all around, and the side of the folding plate away from the annular frame is fixedly connected to a supporting top plate, and the bottom of the supporting top plate is fixedly connected to the top of the sliding column.

[0006] Preferably, the filtering mechanism includes a supporting frame, the bottom of the supporting frame is fixedly connected to the inner wall of the receiving base, the top of the supporting frame is fixedly connected to a supporting column, the outside of the supporting column is fixedly connected to a filter plate, the supporting frame supports the supporting column, the filter plate adopts a multi-number and multi-angle rotation design, after the liquid comes into contact with the filter plate, the filtering effect of the liquid is achieved, and the filtering space inside the equipment can be adjusted to avoid blockage of the filtering position, the outside of the filter plate is fixedly connected to a condenser, the liquid part after evaporation is vaporized and comes into contact with the condenser, thereby accelerating the cooling speed of the gas and liquid, which is convenient for recovery and reuse.

[0007] Preferably, the separation mechanism comprises a separation shell, the top of the separation shell is provided with an air outlet, the outside of the separation shell is fixedly connected with a circulation pipe, and the gas and liquid enter the separation shell through the circulation pipe, so as to achieve the effective separation of the vapor generated by evaporation and the liquid that does not evaporate, and ensure that the vapor can be discharged smoothly, the circulation pipe is fixedly connected to the outside of the receiving base on the side away from the separation shell, the inner wall of the separation shell is fixedly connected with a funnel plate, the outside of the funnel plate is fixedly connected with a strip block, the bottom of the inner wall of the separation shell is fixedly connected with a central pillar, the outside of the central pillar is slidably connected with a cleaning mechanism, the side of the central pillar away from the cleaning mechanism is fixedly connected with a limiting mechanism, the bottom of the separation shell is fixedly connected with a second discharge port, and the liquid precipitated in the separation shell is transported out from the second discharge port, the funnel plate guides the liquid to avoid liquid residue, helps to guide the flow of the fluid, and reduces the retention and blockage of the fluid, the steam rises from the air outlet for subsequent circulation treatment, and in the process of the steam expanding and rising due to heat, the cleaning mechanism is lifted.

[0008] Preferably, the cleaning mechanism includes a supporting base, the inner wall of the supporting base is slidably connected to the outside of the central pillar, and a beveled groove is provided at the bottom of the supporting base. Liquid will adhere to the liquid during sedimentation, and the beveled groove is provided to guide the liquid and prevent the liquid from adhering to the surface of the equipment. A paddle board is fixedly connected to the outer package of the supporting base, and streamlined grooves are provided on both sides of the paddle board. Steam drives the paddle board to rotate, thereby driving the cleaning mechanism to rotate. By providing the streamlined groove, the fluid can flow more smoothly along the groove, reducing flow resistance and turbulence, reducing noise generated by fluid flow, and improving the rotation effect.

[0009] Preferably, the top of the support base is fixedly connected with a connecting column, the outside of the connecting column is fixedly connected with an arc frame, and the side of the arc frame away from the connecting column is fixedly connected with a scraper. The arc frame supports the scraper, and the scraper scrapes the inner wall of the separation shell to avoid scaling of the material, which may gradually form a scale layer in the equipment, affecting the heat transfer efficiency and normal operation.

[0010] Preferably, the limiting mechanism comprises a circular plate, the inner wall of the circular plate is fixedly connected to the outside of the central pillar, the bottom of the circular plate is fixedly connected to a spring block, and the side of the spring block away from the circular plate is fixedly connected to a connecting ring plate. In the process of steam lifting the cleaning mechanism, the spring block plays a shock-absorbing and buffering role, avoiding collisions between devices and reducing wear between devices, thereby playing a protective role.

[0011] Preferably, the bottom of the connecting ring plate is fixedly connected to a limiting base, the outside of the limiting base is fixedly connected to an arc plate, one side of the outside of the arc plate is fixedly connected to a friction block, one side of the outside of the friction block is provided with a tooth mark groove, the friction block is in friction contact with the connecting column, and the tooth mark groove is provided to improve the friction effect, reduce the shaking of the equipment, and improve the stability of the equipment. The side of the arc plate away from the friction block is fixedly connected to a friction mechanism, and when the connecting column rises with the steam, it comes into friction contact with the arc plate, so that the friction mechanism has a clamping effect on the connecting column.

[0012] Preferably, the friction mechanism includes a connecting block, the outside of the connecting block is fixedly connected to the outside of the arc plate, both sides of the connecting block are fixedly connected with an arc bracket, the outside of the arc bracket is rotatably connected with a rotating block, the rotating block is in friction contact with the connecting column, and the connecting column is frictionally clamped, so that when the cleaning mechanism rotates, it has the effect of limiting the rotation speed, avoiding shaking caused by excessive rotation speed, and maintaining structural stability. A square notch is provided on the outside of the rotating block. By providing the square notch, the friction effect is increased and the heat dissipation effect is improved, thereby extending the service life of the equipment. A bevel plate is fixedly connected to the side of the arc bracket close to the rotating block, and the bevel plate adopts an inclined design to reduce the impact during contact to a certain extent, thereby achieving a buffering and shock-absorbing effect.

[0013] The present invention provides a falling film evaporation device having the following beneficial effects: 1. The falling film evaporation equipment is designed through the evaporation mechanism. According to the Bernoulli principle, the diameter of the pipe is reduced to achieve the effect of increasing the flow rate. The steam inlet is connected to the steam pipe to achieve the evaporation of the liquid inside the heat exchange tube to achieve the effect of concentrating the liquid, thereby stirring the liquid and making it difficult for the liquid raw material to accumulate. By stirring the liquid, the liquid flow range is increased to improve the uniformity of the liquid flow. Secondly, a square incision is opened. The grooving helps to reduce the resistance of the square plate when it rotates in the fluid, thereby reducing energy consumption, promoting uniform mixing of materials, improving stirring efficiency and quality, and increasing the space with the liquid to reduce liquid attachment residue.

[0014] Second, the falling film evaporation equipment is designed with a buffer mechanism. After the liquid enters from the feed inlet, it impacts the supporting top plate. The pressure generated by the impact causes the sliding column to slide to the bottom of the supporting column, causing the spring bar to be squeezed and contracted, thereby achieving the effect of shock absorption and buffering, avoiding violent collision of the liquid, and preventing the liquid from splashing and affecting the conveying effect. Secondly, with the increase of liquid, gravity causes the middle part of the connecting frame to bend, and the folding plate contracts downward from the supporting state, thereby guiding the liquid and accelerating the uniform diffusion of the liquid to the surroundings.

[0015] 3. The falling film evaporation equipment is designed with a filtering mechanism, and the support frame supports the supporting column. The filter plate adopts a multi-number and multi-angle rotation design. After the liquid comes into contact with the filter plate, the filtering effect of the liquid is achieved, and the filtering space inside the equipment can be adjusted to avoid blockage of the filtering position. The liquid part after evaporation is vaporized and comes into contact with the condenser, which accelerates the cooling speed of the gas and liquid and facilitates recovery and reuse.

[0016] 4. The falling film evaporation equipment is designed with a separation mechanism, and the gas and liquid enter the separation shell through the flow pipe, so as to effectively separate the steam generated by evaporation from the unevaporated liquid, ensure that the steam can be discharged smoothly, and the liquid precipitated inside the separation shell is transported out from the second discharge port. The funnel plate guides the liquid to avoid liquid residue, which helps to guide the flow of the fluid and reduce fluid retention and blockage.

[0017] 5. The falling film evaporation equipment, through the design of the cleaning mechanism, will produce adhesion during the gas-liquid precipitation process, and the oblique grooves are opened to guide the liquid, avoid the liquid from adhering to the surface of the equipment, and enable the fluid to flow more smoothly along the grooves, reducing flow resistance and turbulence, reducing the noise generated by the fluid flow, and improving the rotation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the falling film evaporation device of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the falling film evaporation device of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the evaporation mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the rotating mechanism of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the buffer mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the filtering mechanism of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the separation mechanism of the present invention; Figure 8 It is a schematic diagram of the cleaning mechanism structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the limiting mechanism of the present invention; Fig.10 It is a schematic diagram of the friction mechanism structure of the present invention.

[0019] In the figure: 1, frame; 2, evaporation mechanism; 3, separation mechanism; 201, column shell; 202, feed port; 203, injection plate; 204, conveying pipe groove; 205, heat exchange tube; 206, steam inlet; 207, receiving base; 208, rotating mechanism; 209, buffer mechanism; 210, filtering mechanism; 211, first discharge port; 2081, connecting plate; 2082, receiving plate; 2083, rotating shaft; 2084, paddle; 2085, connecting frame; 2086, square plate; 2087, square incision; 2091, supporting column; 2092, sliding column; 2093, spring bar; 2094, connecting frame; 2095, annular frame; 2096, folding plate; 2097, supporting top plate; 2101, bearing frame; 2102, bearing Column; 2103, filter plate; 2104, condenser; 31, separation shell; 32, air outlet; 33, circulation pipe; 34, second discharge port; 35, funnel plate; 36, strip block; 37, cleaning mechanism; 38, central pillar; 39, limiting mechanism; 371, support base; 372, bevel groove; 373, paddle plate; 374, streamlined groove; 375, connecting column; 376, arc frame; 377, scraper; 391, circular plate; 392, spring block; 393, connecting ring plate; 394, limiting base; 395, arc plate; 396, friction block; 397, tooth mark groove; 398, friction mechanism; 3981, connecting block; 3982, arc bracket; 3983, bevel plate; 3984, rotating block; 3985, square notch. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] The first embodiment, as Figures 1 to 4 As shown, the present invention provides a technical solution: a falling film evaporation device, comprising a frame 1, the frame 1 is used to support the falling film evaporation device; An evaporation mechanism 2, the evaporation mechanism 2 is used to heat the material; A separation mechanism 3, which is used to recover gas and liquid of the material; The bottom of the evaporation mechanism 2 is fixedly connected to the outside of the frame 1, and the outside of the evaporation mechanism 2 is fixedly connected to the outside of the separation mechanism 3; The evaporation mechanism 2 includes a column shell 201, a feed port 202 is fixedly connected to the top of the column shell 201, a rotating mechanism 208 is fixedly connected to the bottom of the feed port 202, an injection plate 203 is fixedly connected to the inner wall of the column shell 201 near the rotating mechanism 208, a delivery pipe groove 204 is provided on the outside of the injection plate 203, a buffer mechanism 209 is fixedly connected to the top of the injection plate 203, a heat exchange tube 205 is fixedly connected to the side of the column shell 201 away from the injection plate 203, a steam inlet 206 is fixedly connected to the outside of the column shell 201, a receiving base 207 is fixedly connected to the bottom of the column shell 201, a filtering mechanism 210 is fixedly connected to the bottom of the inner wall of the receiving base 207, and a filter mechanism 210 is fixedly connected to the bottom of the receiving base 207. There is a first discharge port 211; the liquid enters the column shell 201 from the feed port 202, and contacts the rotating mechanism 208 and the buffer mechanism 209 in the process of flowing downward, and then the liquid flows to the injection plate 203, and flows to the heat exchange tube 205 through the conveying pipe groove 204, wherein the conveying pipe groove 204 adopts a structure with wide ends and a narrowed diameter in the middle. According to the Bernoulli principle, the pipe diameter is reduced to achieve the effect of increasing the flow rate. The steam inlet 206 is connected to the steam pipe to achieve the evaporation of the liquid inside the heat exchange tube 205 to achieve the effect of concentrating the liquid. After evaporation, the liquid is divided into two forms of gas and liquid inside the receiving base 207. The liquid part is transported out through the first discharge port 211, and the gas part flows to the inside of the separation mechanism 3.

[0022] The rotating mechanism 208 includes a connecting plate 2081, the bottom of which is fixedly connected to a receiving plate 2082, the outside of the receiving plate 2082 is rotatably connected to a rotating shaft 2083, the side of the rotating shaft 2083 close to the receiving plate 2082 is fixedly connected to a paddle 2084, the side of the rotating shaft 2083 away from the paddle 2084 is fixedly connected to a connecting frame 2085, the outside of the connecting frame 2085 is fixedly connected to a square plate 2086, and the outside of the square plate 2086 is provided with a square cutout 2087. After the liquid enters from the feed port 202, the liquid flushes the paddle 2084, and the paddle 2084 increases the force area on the liquid, thereby achieving the effect of expanding the rotation effect. The paddle 2084 drives the rotating shaft 2083 to rotate, and during the rotation of the rotating shaft 2083, the square plate 2086 is driven to rotate, thereby stirring the liquid, making it difficult for the liquid raw material to accumulate, and increasing the liquid flow range by stirring the liquid, thereby improving the uniformity of the liquid flow. Secondly, a square incision 2087 is opened, and the grooving helps to reduce the resistance of the square plate when it rotates in the fluid, thereby reducing energy consumption, promoting uniform mixing of materials, improving stirring efficiency and quality, and increasing the space with the liquid to reduce liquid adhesion residue.

[0023] The second embodiment is based on the first embodiment. Figures 5 and 6 As shown, the buffer mechanism 209 includes a support column 2091, the bottom of which is fixedly connected to the top of the injection plate 203, the outside of the support column 2091 is slidably connected to a sliding column 2092, a spring bar 2093 is placed inside the sliding column 2092, the outside of the sliding column 2092 is fixedly connected to a connecting frame 2094, the side of the connecting frame 2094 away from the sliding column 2092 is fixedly connected to a ring frame 2095, the top of the ring frame 2095 is fixedly connected to a folding plate 2096, the side of the folding plate 2096 away from the ring frame 2095 is fixedly connected to a support top plate 2097, and the bottom of the support top plate 2097 is fixedly connected to the top of the sliding column 2092. After the liquid enters from the feed port 202, it impacts the support top plate 2097. The pressure generated by the impact causes the sliding column 2092 to slide toward the bottom of the support column 2091, causing the spring bar 2093 to be squeezed and contracted, thereby achieving a shock-absorbing and buffering effect, avoiding violent collisions of the liquid, and preventing the liquid from splashing and affecting the conveying effect. Secondly, as the amount of liquid increases, gravity causes the middle part of the connecting frame 2094 to bend, and the folding plate 2096 contracts downward from the supporting state, thereby guiding the liquid and accelerating the uniform diffusion of the liquid to the surroundings.

[0024] The filtering mechanism 210 includes a carrier frame 2101, the bottom of the carrier frame 2101 is fixedly connected to the inner wall of the receiving base 207, the top of the carrier frame 2101 is fixedly connected to a carrier column 2102, the outside of the carrier column 2102 is fixedly connected to a filter plate 2103, and the outside of the filter plate 2103 is fixedly connected to a condenser 2104. The carrier frame 2101 supports the carrier column 2102, and the filter plate 2103 adopts a multi-number multi-angle rotation design. After the liquid contacts the filter plate 2103, the filtering effect of the liquid is achieved, and the filtering space inside the device can be adjusted to avoid the clogging of the filtering position. The liquid part after evaporation is gasified and contacts the condenser 2104, which accelerates the cooling speed of the gas and liquid, and is convenient for recycling and reuse.

[0025] The third embodiment is based on the first and second embodiments. Figures 7 to 10As shown, the separation mechanism 3 includes a separation shell 31, a gas outlet 32 ​​is opened on the top of the separation shell 31, a flow tube 33 is fixedly connected to the outside of the separation shell 31, the side of the flow tube 33 away from the separation shell 31 is fixedly connected to the outside of the receiving base 207, the inner wall of the separation shell 31 is fixedly connected to a funnel plate 35, the outside of the funnel plate 35 is fixedly connected to a strip block 36, the bottom of the inner wall of the separation shell 31 is fixedly connected to a central pillar 38, the outside of the central pillar 38 is slidably connected to a cleaning mechanism 37, the side of the central pillar 38 away from the cleaning mechanism 37 is fixedly connected to a limiting mechanism 39, and the bottom of the separation shell 31 is fixedly connected to a second discharge port 34. The gas and liquid enter the separation shell 31 through the circulation pipe 33, so as to effectively separate the steam generated by evaporation from the unevaporated liquid, ensuring that the steam can be discharged smoothly. The liquid precipitated inside the separation shell 31 is transported out from the second discharge port 34. The funnel plate 35 guides the liquid to avoid liquid residue, helps to guide the flow of the fluid, and reduces fluid retention and blockage. The steam rises from the outlet 32 ​​for subsequent circulation treatment. In the process of the steam expanding and rising due to heat, it lifts the cleaning mechanism 37.

[0026] The cleaning mechanism 37 includes a support base 371, the inner wall of the support base 371 is slidably connected to the outside of the central pillar 38, a beveled groove 372 is provided at the bottom of the support base 371, a paddle 373 is fixedly connected to the outer package of the support base 371, and streamlined grooves 374 are provided on both sides of the paddle 373. During the process of gas-liquid precipitation, adhesion will occur, and the beveled groove 372 is provided to guide the liquid and prevent the liquid from adhering to the surface of the equipment. Secondly, the steam drives the paddle 373 to rotate, thereby driving the cleaning mechanism 37 to rotate. By providing the streamlined groove 374, the fluid can flow more smoothly along the groove, reducing the flow resistance and turbulence, reducing the noise generated by the fluid flow, and improving the rotation effect.

[0027] The top of the support base 371 is fixedly connected with a connection column 375, the outside of the connection column 375 is fixedly connected with an arc frame 376, and the side of the arc frame 376 away from the connection column 375 is fixedly connected with a scraper 377. The arc frame 376 supports the scraper 377, and the scraper 377 scrapes the inner wall of the separation shell 31 to prevent scaling of the material, which may gradually form a scale layer in the equipment, affecting the heat transfer efficiency and normal operation.

[0028] The limiting mechanism 39 includes a circular plate 391, the inner wall of which is fixedly connected to the outside of the central pillar 38, a spring block 392 is fixedly connected to the bottom of the circular plate 391, and a connecting ring plate 393 is fixedly connected to the side of the spring block 392 away from the circular plate 391. In the process of steam lifting the cleaning mechanism 37, the spring block 392 plays a role of shock absorption and buffering, avoiding collision between devices and reducing wear between devices, thereby playing a protective role.

[0029] The bottom of the connecting ring plate 393 is fixedly connected with a limiting base 394, the outside of the limiting base 394 is fixedly connected with an arc plate 395, one side of the outside of the arc plate 395 is fixedly connected with a friction block 396, one side of the outside of the friction block 396 is provided with a tooth mark groove 397, and the side of the arc plate 395 away from the friction block 396 is fixedly connected with a friction mechanism 398. When the connecting column 375 rises with the steam, it comes into friction contact with the arc plate 395, so that the friction mechanism 398 has a clamping effect on the connecting column 375, and the friction block 396 comes into friction contact with the connecting column 375. By providing the tooth mark groove 397, the friction effect is improved, the shaking of the equipment is reduced, and the stability of the equipment is improved.

[0030] The friction mechanism 398 includes a connection block 3981, the outside of the connection block 3981 is fixedly connected to the outside of the arc plate 395, the two sides of the connection block 3981 are fixedly connected to the arc bracket 3982, the outside of the arc bracket 3982 is rotatably connected to the rotating block 3984, the outside of the rotating block 3984 is provided with a square notch 3985, and the side of the arc bracket 3982 close to the rotating block 3984 is fixedly connected to the bevel plate 3983. The rotating block 3984 is in friction contact with the connecting column 375, and the connecting column 375 is frictionally clamped. When the cleaning mechanism 37 rotates, it has the effect of limiting the rotation speed, avoiding shaking due to excessive rotation speed, and maintaining the stability of the structure. By providing the square notch 3985, the friction effect and the heat dissipation effect are increased, and the service life of the equipment is extended. The bevel plate 3983 adopts an inclined design to reduce the impact during contact to a certain extent, and has a buffering and shock absorbing effect.

[0031] When in use, liquid enters through the feed inlet 202 inside the evaporation mechanism 2, and a steam inlet 206 is set on one side of the evaporation mechanism 2. After the liquid enters the evaporation mechanism 2, it passes through the rotating mechanism 208, and the rotating mechanism 208 stirs the liquid, so that the liquid raw material is not easy to accumulate. By stirring the liquid, the flow range of the liquid is increased, thereby improving the uniformity of the liquid flow, improving the stirring efficiency and quality, and increasing the space with the liquid, reducing the liquid attachment residue. Secondly, a buffer mechanism 209 is set near the rotating mechanism 208 inside the evaporation mechanism 2, and the buffer mechanism 209 is used to achieve a shock-absorbing and buffering effect. , avoiding violent collision of liquids, preventing liquid from splashing and affecting the conveying effect, guiding the liquid, accelerating the uniform diffusion of the liquid to the surroundings, heating the liquid by steam, thereby achieving the effect of concentrating the liquid, and the evaporated liquid enters the bottom of the evaporation mechanism 2, and when the liquid enters the bottom of the evaporation mechanism 2, it contacts the filtering mechanism 210, and the filtering mechanism 210 is used to achieve the filtering effect of the liquid, and the filtering space inside the equipment can be adjusted, thereby avoiding the blockage of the filtering position, and accelerating the cooling speed of the gas and liquid, which is convenient for recovery and reuse, and the evaporated liquid inside the evaporation mechanism 2 flows out from the first discharge port 211.

[0032] The gas inside the evaporation mechanism 2 flows into the separation mechanism 3, and the separation mechanism 3 effectively separates the steam generated by evaporation from the unevaporated liquid to ensure that the steam can be discharged smoothly. An outlet 32 ​​is set at the top of the separation mechanism 3, and the outlet 32 ​​is used to discharge the steam, so that the steam is compressed and heated by the compressor and continued to be transported to the steam inlet 206, so as to achieve the effect of circulation treatment. The liquid precipitated inside the separation mechanism 3 flows out from the second discharge port 34, and the wind force generated by the steam and the compressor has the effect of lifting and rotating the cleaning mechanism 37. The cleaning mechanism 37 allows the fluid to flow more smoothly along the groove, reduce flow resistance and turbulence, reduce the noise generated by fluid flow, improve the rotation effect, and avoid material scaling. A scale layer may gradually form in the equipment, affecting the heat transfer efficiency and normal operation.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A falling film evaporation device, characterized in that: include: A frame (1), the frame (1) being used to support the falling film evaporation equipment; An evaporation mechanism (2), the evaporation mechanism (2) being used to heat the material; A separation mechanism (3), the separation mechanism (3) is used to recover gas and liquid of the material; The bottom of the evaporation mechanism (2) is fixedly connected to the outside of the frame (1), and the outside of the evaporation mechanism (2) is fixedly connected to the outside of the separation mechanism (3); The evaporation mechanism (2) comprises a column shell (201), the top of the column shell (201) is fixedly connected to a material inlet (202), the bottom of the material inlet (202) is fixedly connected to a rotating mechanism (208), an injection plate (203) is fixedly connected to a side of the inner wall of the column shell (201) close to the rotating mechanism (208), a delivery pipe groove (204) is provided on the outside of the injection plate (203), and a buffer is fixedly connected to the top of the injection plate (203). A heat exchange tube (205) is fixedly connected to a side of the column shell (201) away from the injection plate (203), a steam inlet (206) is fixedly connected to the outside of the column shell (201), a receiving base (207) is fixedly connected to the bottom of the column shell (201), a filtering mechanism (210) is fixedly connected to the bottom of the inner wall of the receiving base (207), and a first discharge port (211) is fixedly connected to the bottom of the receiving base (207); The rotating mechanism (208) comprises a connecting plate (2081), the bottom of the connecting plate (2081) is fixedly connected to a receiving plate (2082), the outside of the receiving plate (2082) is rotatably connected to a rotating shaft (2083), a side of the rotating shaft (2083) close to the receiving plate (2082) is fixedly connected to a paddle (2084), a side of the rotating shaft (2083) away from the paddle (2084) is fixedly connected to a connecting frame (2085), the outside of the connecting frame (2085) is fixedly connected to a square plate (2086), and the outside of the square plate (2086) is provided with a square cutout (2087).

2. A falling film evaporation device according to claim 1, characterized in that: The buffer mechanism (209) comprises a support column (2091), the bottom of the support column (2091) is fixedly connected to the top of the injection plate (203), the outside of the support column (2091) is slidably connected to a sliding column (2092), a spring bar (2093) is placed inside the sliding column (2092), the outside of the sliding column (2092) is fixedly connected to a connecting frame (2094), a side of the connecting frame (2094) away from the sliding column (2092) is fixedly connected to an annular frame (2095), the top of the annular frame (2095) is fixedly connected to a folding plate (2096), the side of the folding plate (2096) away from the annular frame (2095) is fixedly connected to a support top plate (2097), and the bottom of the support top plate (2097) is fixedly connected to the top of the sliding column (2092).

3. The falling film evaporation device according to claim 1, characterized in that: The filtering mechanism (210) comprises a supporting frame (2101), the bottom of the supporting frame (2101) is fixedly connected to the inner wall of the receiving base (207), the top of the supporting frame (2101) is fixedly connected to a supporting column (2102), the outside of the supporting column (2102) is fixedly connected to a filtering plate (2103), and the outside of the filtering plate (2103) is fixedly connected to a condensing tube (2104).

4. The falling film evaporation device according to claim 1, characterized in that: The separation mechanism (3) comprises a separation shell (31), the top of the separation shell (31) is provided with an air outlet (32), the outside of the separation shell (31) is fixedly connected to a circulation pipe (33), the side of the circulation pipe (33) away from the separation shell (31) is fixedly connected to the outside of a receiving base (207), the inner wall of the separation shell (31) is fixedly connected to a funnel plate (35), the outside of the funnel plate (35) is fixedly connected to a strip block (36), the bottom of the inner wall of the separation shell (31) is fixedly connected to a central pillar (38), the outside of the central pillar (38) is slidably connected to a cleaning mechanism (37), the side of the central pillar (38) away from the cleaning mechanism (37) is fixedly connected to a limiting mechanism (39), and the bottom of the separation shell (31) is fixedly connected to a second discharge port (34).

5. A falling film evaporation device according to claim 4, characterized in that: The cleaning mechanism (37) comprises a support base (371), the inner wall of the support base (371) being slidably connected to the outside of the central pillar (38), the bottom of the support base (371) being provided with a beveled groove (372), the outer shell of the support base (371) being fixedly connected with a paddle board (373), and both sides of the paddle board (373) being provided with streamlined grooves (374).

6. A falling film evaporation device according to claim 5, characterized in that: The top of the support base (371) is fixedly connected to a connection column (375), the outside of the connection column (375) is fixedly connected to an arc frame (376), and a scraper (377) is fixedly connected to a side of the arc frame (376) away from the connection column (375).

7. The falling film evaporation device according to claim 4, characterized in that: The limiting mechanism (39) comprises a circular plate (391), the inner wall of the circular plate (391) being fixedly connected to the outside of the central pillar (38), the bottom of the circular plate (391) being fixedly connected to a spring block (392), and a side of the spring block (392) away from the circular plate (391) being fixedly connected to a connecting ring plate (393).

8. The falling film evaporation device according to claim 7, characterized in that: The bottom of the connecting ring plate (393) is fixedly connected to a limiting base (394), the outside of the limiting base (394) is fixedly connected to an arc-shaped plate (395), one side of the outside of the arc-shaped plate (395) is fixedly connected to a friction block (396), one side of the outside of the friction block (396) is provided with a tooth mark groove (397), and the side of the arc-shaped plate (395) away from the friction block (396) is fixedly connected to a friction mechanism (398).

9. A falling film evaporation device according to claim 8, characterized in that: The friction mechanism (398) comprises a connecting block (3981), the outside of the connecting block (3981) is fixedly connected to the outside of the arc plate (395), both sides of the connecting block (3981) are fixedly connected to arc brackets (3982), the outside of the arc bracket (3982) is rotatably connected to a rotating block (3984), the outside of the rotating block (3984) is provided with a square notch (3985), and a bevel plate (3983) is fixedly connected to a side of the arc bracket (3982) close to the rotating block (3984).

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