Assembly structure and method of polymeric membrane

Abstract

The invention relates to an assembly structure and method of a polymeric membrane, and belongs to the technical field of falling film evaporation, the assembly structure of the polymeric membrane comprises a plurality of polymeric membranes, a gas uniformizing part and a first assembly part, the polymeric membranes are sequentially arranged in the horizontal direction, a gas inlet is formed in the side wall of each polymeric membrane, and a gas outlet is formed in the side wall of each gas uniformizing part; the air inlets are used for allowing high-temperature steam output by a steam compressor to enter, the lower ends of the polymer films are jointly communicated with a condensation conveying pipe, the air uniformizing piece comprises a plurality of air uniformizing strips, the air uniformizing strips correspond to the polymer films one to one, and the air uniformizing strips are located in the air inlets of the corresponding polymer films; the adjacent gas uniformizing strips abut against each other at the interval of the polymer film to form a gas inlet plane, and the first assembly part is used for relatively fixing the plurality of gas uniformizing strips. The vapor compressor has the advantages that high-temperature vapor output by the vapor compressor uniformly enters the polymer film, and the evaporation effect is improved to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of falling film thin film evaporation, and in particular to an assembly structure and method of a polymer film. Background Art

[0002] Falling film thin film evaporator is an evaporation device used for wastewater treatment, which is widely used in production industry, chemical industry, life and other fields. The principle of falling film thin film evaporation is mainly to add the feed liquid from the upper end of the heating chamber of the falling film evaporator, distribute it to the outer wall of each film through the liquid distributor, and flow from top to bottom in a film shape under the action of gravity, vacuum induction and airflow. The steam on the outer wall of the film is pressurized and heated by the steam compressor and then transported into the film. The high-temperature steam in the film exchanges heat with the feed liquid on the outer wall of the film, so that the feed liquid on the outer wall of the film evaporates and concentrates in this process, and finally a concentrated liquid is obtained at the bottom of the device.

[0003] Currently, it is difficult for high-temperature steam entering the film from the output end of the steam compressor to enter the film evenly, resulting in poor evaporation effect. Summary of the invention

[0004] In order to help the high-temperature steam output by the steam compressor to evenly enter the polymer film and improve the evaporation effect to a certain extent, the present application provides an assembly structure and method of a polymer film.

[0005] In the first aspect, the present application provides an assembly structure of a polymer film, which adopts the following technical solution: A polymer membrane assembly structure includes a polymer film, an air equalizing component and a first assembly component, wherein a plurality of polymer films are arranged in sequence along a horizontal direction, and each of the polymer films has a side wall provided with an air inlet, the air inlet being used for entry of high-temperature steam output by a steam compressor, and a plurality of polymer films having lower ends commonly connected to a condensation delivery pipe, the air equalizing component includes a plurality of air equalizing strips, the air equalizing strips corresponding to the polymer films one by one, the air equalizing strips being located in the air inlets of the corresponding polymer films, and adjacent air equalizing strips abutting against each other with the polymer films separated to form an air inlet plane, and the first assembly component being used for relatively fixing the plurality of air equalizing strips.

[0006] Preferably, the inner wall of the polymer film is provided with a water channel, and the water channel includes a wavy point water channel, a wave water channel and a straight water channel arranged in sequence from top to bottom, the wavy point water channel includes a plurality of circular thermoplastic points arranged on the inner wall of the polymer film, the wave water channel includes a plurality of wavy thermoplastic strips arranged on the inner wall of the polymer film, the wavy thermoplastic strips extend in a vertical direction, and wavy flow channels are formed between adjacent wavy thermoplastic strips, the straight water channel includes a plurality of straight thermoplastic strips, one end of the straight thermoplastic strip is connected to the wavy thermoplastic strip, and the other end extends in a direction close to the condensation conveying pipe, and a straight flow channel is formed between adjacent straight thermoplastic strips.

[0007] Preferably, a water outlet hole is opened on the side wall of the lower end of the polymer film, and a guide plate is installed on the inner side of the lower end of the polymer film. The guide plate is aligned with the water outlet hole on the corresponding polymer film and is connected with the water outlet hole. The end of the straight thermoplastic strip away from the wavy thermoplastic strip extends to the guide plate, and the guide plates in adjacent polymer films are pressed tightly. Water collectors are distributed under multiple polymer films, and the water collectors are clamped between the guide plates in any two adjacent polymer films. The guide plates in the polymer films are pressed tightly in turn to form an internal horizontal pipeline, and the water collector is connected with the condensation delivery pipe.

[0008] Preferably, the air equalizing strip comprises two air equalizing half strips spliced ​​to each other, and a plurality of abutment plates are provided on the sides of the two air equalizing half strips close to each other. The plurality of abutment plates are arranged at intervals along the length direction of the corresponding air equalizing half strips, and the abutment plates on the two spliced ​​air equalizing half strips correspond to each other one by one, and the corresponding two abutment plates abut against each other so that the two air equalizing half strips enclose a plurality of air equalizing holes.

[0009] Preferably, the air equalizing half strip comprises a plurality of strips, the plurality of strips are spliced ​​in sequence along their own length direction, the plurality of abutment sheets are distributed at intervals along the length direction of the strips, the strips of two air equalizing half strips in the air equalizing strip correspond to each other one by one, and the corresponding two strips are spliced ​​together.

[0010] Preferably, connecting platforms are provided at both ends of the strips in the length direction, and two splicing pieces are provided on the connecting platforms. A splicing protrusion is provided on one of the splicing pieces on the connecting platforms, and a splicing hole is provided on the other splicing piece. The splicing protrusion is used to buckle with the splicing hole on the adjacent strip on the same gas-distributing half strip, and the splicing hole is used to buckle with the splicing protrusion on the adjacent strip on the same gas-distributing half strip.

[0011] Preferably, a first mounting groove is provided on the connecting platform of one side strip of the gas equalizing strip, and a second mounting groove is provided on the connecting platform of the other side strip, the first mounting groove and the second mounting groove are both located on the side of the corresponding connecting platform away from the abutment sheet, a first spring is provided in the first mounting groove, and a magnetic attraction sheet is provided at one end of the first spring away from the bottom wall of the first mounting groove, when the first spring is in a natural state, a side of the magnetic attraction sheet away from the first spring is flush with a side of the corresponding connecting platform away from the abutment sheet; a magnetic attraction block is provided in the second mounting groove, a second spring is provided in the second mounting groove, and a sealing sheet is provided at one end of the second spring away from the bottom wall of the second mounting groove, when the second spring is in a natural state, the side of the sealing sheet away from the second spring is flush with a side of the corresponding connecting platform away from the abutment sheet, the magnetic attraction sheet is used to be adsorbed and fixed to the magnetic attraction block on the strip in the adjacent gas equalizing strip separated by the sealing sheet, and the adsorption force between the magnetic attraction sheet and the magnetic attraction block is greater than the sum of the elastic forces of the first spring and the second spring.

[0012] Preferably, the first assembly includes a first mounting bar and a first mounting screw, two first mounting bars are provided, the multiple air-balancing bars and multiple polymer films of the air-balancing component are located between the two first mounting bars, the first mounting screw is passed through the first mounting bar, the air-balancing bar and the polymer film, and the two ends of the first mounting screw are threadedly connected with a first locking nut, and the first locking nut abuts against a side of the first mounting bar on the corresponding side away from the air-balancing bar.

[0013] Preferably, the assembly structure also includes a water-distributing part and a second assembly part, the water-distributing part includes a plurality of water-distributing bars, the plurality of water-distributing bars are arranged in sequence along the horizontal direction, a clamping gap is formed between adjacent water-distributing bars, the polymer film corresponds one-to-one to the clamping gap, the upper end of the polymer film is clamped between adjacent water-distributing bars, and the second assembly part is used to relatively fix the plurality of water-distributing bars.

[0014] In a second aspect, the present application provides a method for assembling a polymer film, which adopts the following technical solution: A method for assembling a polymer film, using the assembly structure, comprises the following steps: Place the air-distributing strips in the air inlets of the corresponding polymer films, and place the upper end of the polymer films between adjacent water-distributing strips; A plurality of air-distributing strips are sequentially butted with each other through a polymer film, and a plurality of water-distributing strips are sequentially butted with each other through a polymer film; The plurality of air distribution strips are relatively fixed by the first assembly, and the plurality of water distribution strips are relatively fixed by the second assembly to clamp the upper end of the polymer film.

[0015] In summary, this application includes the following beneficial technical effects: When in use, the assembly structure of the polymer film is installed in the falling film thin film evaporation device, and the feed liquid enters the falling film thin film evaporation device through the upper end of the falling film thin film evaporation device, and the feed liquid flows along the outer wall of the polymer film to form a film. The steam in the device is pressurized and heated by the steam compressor in the falling film thin film evaporation device, and then transported to the air inlet plane formed by multiple air equalizing strips. The high-temperature steam enters the polymer film through multiple air equalizing strips, and the high-temperature steam in the polymer film exchanges heat with the feed liquid on the outer wall, so that the feed liquid evaporates and concentrates in this process. The steam in the polymer film is cooled and discharged from the condensation conveying pipe, and the air inlet corresponding to the polymer film is opened through the air equalizing strip. The air equalizing strip can evenly introduce the high-temperature steam into the polymer film, which helps to make the high-temperature steam evenly fill the polymer film, thereby improving the evaporation effect to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0017] Figure 2 It is a partial structural cross-sectional exploded view of Example 1 of the present application, which is mainly used to show the internal structure of the polymer film and the structure of the water collector.

[0018] Figure 3 It is a schematic diagram of the overall structure of the air equalizing strip in Example 1 of the present application.

[0019] Figure 4 It is an exploded view of the overall structure of the air equalizing strip in Example 1 of the present application.

[0020] Figure 5 yes Figure 4 Enlarged view of part A.

[0021] Figure 6 This is a partial structural cross-sectional view of the air equalizing strip in Example 2 of the present application.

[0022] Explanation of reference numerals: 1, polymer film; 2, air inlet; 3, condensation conveying pipe; 4, air distribution strip; 41, air distribution half strip; 411, strip; 5, wave point waterway; 51, round thermoplastic point; 6, wave waterway; 61, wave-shaped thermoplastic strip; 7, straight waterway; 71, straight thermoplastic strip; 8, water outlet; 9, guide plate; 10, abutment plate; 11, air distribution hole; 12, connecting platform; 13, splicing plate; 14, splicing Protrusion; 15, splicing hole; 16, first installation groove; 17, second installation groove; 18, first spring; 19, magnetic sheet; 20, magnetic block; 21, second spring; 22, blocking sheet; 23, first installation strip; 24, first installation screw; 25, water equalizing strip; 26, male buckle; 27, female buckle; 28, second installation screw; 29, second installation strip; 30, water collector; 301, abutment ring; 302,; connecting pipe. DETAILED DESCRIPTION

[0023] The following combination Figure 1-Figure 6 This application is described in further detail.

[0024] Embodiment 1: The present application embodiment discloses an assembly structure of a polymer film. Figure 1 and Figure 2The assembly structure of the polymer film includes a polymer film 1, a gas-distributing member and a first assembly member. The material of the polymer film 1 is not limited to one or more of PP, PE, PTFE, FEP, PEEK, PA, PS, graphite, silicon carbide, aluminum, silver, and titanium. The thickness is 0.01mm-2mm. Among them, PP refers to polypropylene material; PE refers to polyethylene material; PTFE refers to polytetrafluoroethylene material; FEP refers to fluorinated ethylene propylene copolymer material; PEEK refers to polyetheretherketone material; PA refers to polyamide material; PS refers to polystyrene material. There are multiple polymer films 1 arranged in sequence along the horizontal direction, and each polymer film 1 has an air inlet 2 on its side wall, which is used for the entry of high-temperature steam output by the steam compressor. The lower ends of the multiple polymer films 1 are commonly connected to a condensation delivery pipe 3, and the length direction of the condensation delivery pipe 3 is parallel to the arrangement direction of the polymer films 1. Specifically, each polymer film 1 has a water outlet 8 on its side wall at the lower end, and the water outlet 8 is used to be connected to the condensation delivery pipe 3, and the condensation delivery pipe 3 is used to be connected to a condensation collector.

[0025] Reference Figure 1 and Figure 2 In order to facilitate the uniform guidance of high-temperature steam into the polymer film 1, the gas equalizing component includes a plurality of gas equalizing strips 4, and the gas equalizing strips 4 correspond to the polymer film 1 one by one. The gas equalizing strips 4 are located in the air inlet 2 of the corresponding polymer film 1, and the adjacent gas equalizing strips 4 are abutted against the polymer film 1 to form an air intake plane. The air intake plane can be extended as needed by splicing a plurality of gas equalizing strips 4, and the air intake plane is used to connect with the secondary compression steam pipeline to form a closed body; the first assembly is used to relatively fix the plurality of gas equalizing strips 4.

[0026] When in use, the assembly structure of the polymer membrane is installed in the falling film evaporation device, and the feed liquid enters the falling film evaporation device through the upper end of the falling film evaporation device, and the feed liquid flows along the outer wall of the polymer film 1 to form a film. The steam in the device is pressurized and heated by the steam compressor in the falling film evaporation device, and then transported to the air inlet plane formed by multiple gas equalizing strips 4. The high-temperature steam enters the polymer film 1 through multiple gas equalizing strips 4, and the high-temperature steam in the polymer film 1 exchanges heat with the feed liquid on the outer wall, so that the feed liquid evaporates and concentrates in this process. The steam in the polymer film 1 is cooled and discharged from the condensation conveying pipe 3 through the water outlet 8, and the air inlet 2 corresponding to the polymer film 1 is opened through the gas equalizing strips 4. The gas equalizing strips 4 can make the high-temperature steam output by the steam compressor evenly enter the polymer film 1, so that the feed liquid on the outer wall of the polymer film 1 and the high-temperature steam inside the polymer film 1 can evenly exchange heat, thereby improving the evaporation effect to a certain extent.

[0027] Reference Figure 2 and Figure 3Furthermore, the air equalizing strip 4 includes two air equalizing half strips 41 spliced ​​to each other, and a plurality of abutment sheets 10 are integrally formed on the mutually adjacent sides of the two air equalizing half strips 41. The plurality of abutment sheets 10 are arranged at intervals along the length direction of the air equalizing half strips 41. The abutment sheets 10 on the two air equalizing half strips 41 correspond to each other one by one, and the corresponding two abutment sheets 10 on the two air equalizing half strips 41 abut against each other, so that the two air equalizing half strips 41 enclose a plurality of air equalizing holes 11.

[0028] When in use, the steam compressor delivers high-temperature steam to the air intake plane. Since the plurality of abutment sheets 10 form a plurality of air equalization holes 11 between the two air equalization half strips 41, the high-temperature steam can evenly enter the polymer film 1 through the plurality of air equalization holes 11, thereby improving the evaporation effect.

[0029] Reference Figure 4 and Figure 5 To facilitate the splicing of the two air-balancing half strips 41, a male buckle 26 is integrally formed on part of the abutting piece 10 on one side of the air-balancing half strip 41, and a female buckle 27 is integrally formed on the corresponding abutting piece 10 on the other side of the air-balancing half strip 41. The two air-balancing half strips 41 are spliced ​​by the buckling of the male buckle 26 and the female buckle 27, and the assembly is simple.

[0030] Reference Figure 4 and Figure 5 The air-balancing half-strip 41 can be a whole as needed, or it can include multiple strips 411. The multiple strips 411 are spliced ​​in sequence along their own length direction, and multiple abutment sheets 10 are distributed at intervals along the length direction of the strips 411. The strips 411 of two air-balancing half-strips 41 in the air-balancing strip 4 correspond to each other one by one, and the corresponding two strips 411 are spliced ​​together by the male buckle 26 and the female buckle 27 on the abutment sheet 10.

[0031] Reference Figure 4 and Figure 5 In order to facilitate the splicing of the strips 411 to form the air-distributing half-strip 41 as needed, connecting platforms 12 are integrally formed at both ends of the strips 411 in the length direction, and two splicing pieces 13 are integrally formed on the side of the connecting platform 12 away from the corresponding strips 411. A splicing protrusion 14 is integrally formed on one splicing piece 13 on the connecting platform 12, and a splicing hole 15 is opened on the other splicing piece 13. The splicing protrusion 14 is used to buckle with the splicing hole 15 of the adjacent strip 411 on the same air-distributing half-strip 41, and the splicing hole 15 is used to buckle with the splicing protrusion 14 of the adjacent strip 411 on the same air-distributing half-strip 41.

[0032] When adjacent strips 411 are spliced, the splicing protrusion 14 on the splicing piece 13 at one end of the strip 411 is buckled with the splicing hole 15 on the adjacent strip 411 on the same air-distributing half-strip 41, and the splicing hole 15 on the other splicing piece 13 is buckled with the splicing protrusion 14 of the adjacent strip 411 on the same air-distributing half-strip 41, so as to realize the splicing of adjacent strips 411, so that the strips 411 can be spliced ​​as needed to realize different lengths of the air-distributing half-strip 41, which is simple and convenient and has a wide range of applications.

[0033] Reference Figure 4 and Figure 5 The splicing protrusions 14 at both ends of each strip 411 are cross-arranged, and the splicing protrusions 14 are located on the side of the connecting platform 12 close to the corresponding abutment piece 10, so that when adjacent strips 411 are spliced, the two splicing pieces 13 on the connecting platform 12 are interlaced and buckled with the two splicing pieces 13 of the connecting platform 12 on the adjacent strip 411, that is, one splicing piece 13 on one side of the strip 411 is located on the side of the splicing piece 13 in the adjacent strip 411 close to the abutment piece 10, and the other splicing piece 13 is located on the side of the splicing piece 13 in the adjacent strip 411 away from the abutment piece 10. The cross-buckle connection helps to improve the splicing strength between adjacent strips 411.

[0034] Reference Figure 1 and Figure 2 In order to facilitate the relative fixation of multiple air equalizing strips 4, the first assembly includes a first mounting bar 23 and a first mounting screw 24. Two first mounting bars 23 are provided. The multiple air equalizing strips 4 and multiple polymer films 1 of the air equalizing component are located between the two first mounting bars 23. The first mounting screw 24 is penetrated through the first mounting bar 23, the air equalizing strip 4 and the polymer film 1. Multiple first mounting screws 24 are provided as needed, and the arrangement direction of the multiple first mounting screws 24 is parallel to the length direction of the air equalizing strip 4; both ends of each first mounting screw 24 are threadedly connected with a first locking nut, and the first locking nut abuts against the side of the first mounting bar 23 on the corresponding side away from the air equalizing strip 4.

[0035] The multiple gas equalizing strips 4 and the two first mounting strips 23 are connected in parallel in a row through the first mounting screw 24, and the two first mounting strips 23 and the multiple gas equalizing strips 4 are squeezed and fixed through the first locking nuts at both ends of the first mounting screw 24, so as to be collectively installed in the falling film evaporation device.

[0036] Reference Figure 1 and Figure 2The assembly structure further includes a water balancing member and a second assembly member. The water balancing member includes a plurality of water balancing strips 25. The plurality of water balancing strips 25 are arranged in sequence along the horizontal direction. The arrangement direction of the plurality of water balancing strips 25 is parallel to the arrangement direction of the plurality of polymer films 1. The length direction of the water balancing strips 25 is perpendicular to the arrangement direction of the plurality of polymer films 1. A clamping gap is formed between adjacent water balancing strips 25. The polymer films 1 correspond to the clamping gaps one by one. The upper end of the polymer film 1 is clamped between adjacent water balancing strips 25. The specific structure of the water balancing strips 25 is consistent with the specific structure of the gas balancing strips 4.

[0037] Reference Figure 1 and Figure 2 The second assembly is used to relatively fix the multiple water-distributing bars 25. The second assembly includes a second mounting bar 29 and a second mounting screw 28. Two second mounting bars 29 are provided. The two second mounting bars 29 are located on both sides of the multiple water-distributing bars 25 and the multiple polymer films 1. The second mounting screw 28 is penetrated by the second mounting bar 29 and the water-distributing bar 25. Multiple second mounting screws 28 are arranged at intervals along the length direction of the water-distributing bar 25, which helps to improve the connection strength of the multiple water-distributing bars 25; both ends of each second mounting screw 28 are threadedly connected with a second locking nut, and the second locking nut abuts against a side of the second mounting bar 29 on the corresponding side away from the water-distributing bar 25, thereby realizing relative fixation between the second mounting bar 29 and the multiple water-distributing bars 25. The multiple water-distributing bars 25 are connected in parallel by the second mounting screw 28 to form a large plane, which helps to constrain the slurry to flow evenly through the water-distributing bars 25 to the outer wall of the polymer film 1. In other embodiments, the second mounting strip 29 and the second mounting screw rod 28 may also be replaced with screws, and adjacent water equalizing strips 25 may be assembled and spliced ​​by means of screws.

[0038] Reference Figure 1 The first mounting bar 23 and the second mounting bar 29 close to one side are integrally formed, which helps to improve the connection strength of the entire assembly structure and facilitates the installation of the entire assembly structure into the falling film evaporation device.

[0039] Reference Figure 2A guide plate 9 is fixedly provided on the inner side wall of the lower end of each polymer film 1. The guide plate 9 is aligned with the water outlet hole 8 in the corresponding polymer film 1 and is connected with the water outlet hole 8. The axial direction of the guide plate 9 is parallel to the arrangement direction of the multiple polymer films 1. The guide plates 9 in the multiple polymer films 1 are pressed tightly in sequence to form an internal horizontal sealed channel to facilitate the flow of condensed water; specifically, the guide plate 9 is provided with a plurality of flow channels for guiding the condensed liquid, so that the condensed liquid in the polymer film 1 can enter the water outlet hole 8 through the flow channels on the guide plate 9. A water collector 30 is distributed below the multiple polymer films 1. The water collector 30 includes an abutment ring 301 and a connecting pipe 302. The abutment ring 301 is annular. The axial direction of the connecting pipe 302 is perpendicular to the axial direction of the abutment ring 301. The connecting pipe 302 is connected to the inside of the abutment ring 301. The abutment ring 301 is clamped between the guide plates 9 in any two adjacent polymer films 1. Optimally, the abutment ring 301 is clamped between the guide plates 9 in the middle two polymer films 1 to facilitate the uniform discharge of the condensate. The axial direction of the abutment ring 301 is perpendicular to the axial direction of the abutment ring 301. The line direction is parallel to the axial direction of the multiple guide plates 9, so that the multiple guide plates 9 can be connected with the water collector 30. Specifically, the multiple guide plates 91 and the abutment ring 301 can be connected in series and fixed by screws; the end of the connecting pipe 302 away from the abutment ring 301 is connected with the condensation conveying pipe 3, so as to facilitate the condensation water to be conveyed to the condensation water collector through the condensation conveying pipe 3. The guide plate 9 is not limited to one or more combination materials of PP, PE, PTFE, FEP, PEEK, PA, PS, graphite, silicon carbide, aluminum, silver, and titanium. Through the setting of the guide plate 9, it is convenient for the condensation water in the polymer film 1 to flow to the condensation conveying pipe 3.

[0040] Reference Figure 2 The inner wall of the polymer film 1 is provided with a water channel, which includes a wave point water channel 5, a wave water channel 6 and a straight water channel 7 arranged in sequence from top to bottom. The wave point water channel 5 includes a plurality of circular thermoplastic points 51 formed by heat pressing on the inner wall of the polymer film 1, and the wave water channel 6 includes a plurality of wavy thermoplastic strips 61 formed by heat pressing on the inner wall of the polymer film 1. The wavy thermoplastic strips 61 extend in the vertical direction, and a wavy flow channel is formed between adjacent wavy thermoplastic strips 61; the straight water channel 7 includes a plurality of straight thermoplastic strips 71 formed by heat pressing on the inner wall of the polymer film 1, and the straight thermoplastic strips 71 correspond to the wavy thermoplastic strips 61 one by one. One end of the straight thermoplastic strip 71 is connected to the corresponding wavy thermoplastic strip 61, and the other end extends in the direction close to the guide plate 9, and a straight flow channel is formed between adjacent straight thermoplastic strips 71. Among them, the polymer film 1 is made by heat pressing in one piece, which helps to ensure the forming of the wave point water channel 5, the wave water channel 6 and the straight water channel 7 in the film.

[0041] Since the high-temperature steam just entering the polymer film 1 is in a gaseous state, the high-temperature steam is easily gathered under the action of multiple circular thermoplastic points 51. The accumulated high-temperature steam falls and then flows along the wavy flow channel formed by multiple wavy thermoplastic strips 61 to the multiple linear flow channels formed by multiple linear thermoplastic strips 71, and then enters the guide plate 9 from the linear flow channel, which can evenly cool and guide the high-temperature steam entering the polymer film 1, thereby helping to improve the evaporation effect.

[0042] The implementation principle of Example 1 of the present application is as follows: when in use, the assembly structure of the polymer film is installed in a falling film thin film evaporation device, the feed liquid enters the falling film thin film evaporation device through the upper end of the falling film thin film evaporation device, the feed liquid is evenly guided to the outer wall of the polymer film 1 through multiple water balancing strips 25, and then flows along the outer wall of the polymer film 1 to form a film; the steam in the device is pressurized and heated by the steam compressor in the falling film thin film evaporation device, and then transported to the air inlet plane formed by multiple gas balancing strips 4, the high-temperature steam enters the polymer film 1 through the gas balancing holes 11 on the multiple gas balancing strips 4, and the high-temperature steam in the polymer film 1 The steam flows along the wave point water channel 5, the wave water channel 6 and the straight water channel 7 in sequence, and the high-temperature steam in the polymer film 1 exchanges heat with the liquid on the outer wall, so that the liquid evaporates and concentrates in this process. The steam in the polymer film 1 is cooled and discharged from the condensation conveying pipe 3 through the water outlet 8, and the air inlet 2 corresponding to the polymer film 1 is opened through the air equalizing strip 4. The multiple air equalizing holes 11 on the air equalizing strip 4 can make the high-temperature steam output by the steam compressor evenly enter the polymer film 1, so as to facilitate the even heat exchange between the liquid on the outer wall of the polymer film 1 and the high-temperature steam inside the polymer film 1, thereby improving the evaporation effect to a certain extent.

[0043] The present application also discloses a method for assembling a polymer film. The method for assembling a polymer film uses the above-mentioned assembly structure and includes the following steps: Step 1: Place the air equalization strip 4 in the air inlet 2 corresponding to the polymer film 1, and place the upper end of the polymer film 1 between adjacent water equalization strips 25; Step 2: abutting a plurality of air-distributing strips 4 in sequence with the polymer film 1 in between, and abutting a plurality of water-distributing strips 25 in sequence, so that the adjacent water-distributing strips 25 clamp the upper end of the polymer film 1; Step 3: Place the first mounting bar 23 and the second mounting bar 29 against both sides of the multiple air equalizing bars 4 and the multiple water equalizing bars 25, pass the multiple first mounting screws 24 through the first mounting bar 23, the multiple air equalizing bars 4 and the multiple polymer films 1, pass the multiple second mounting screws 28 through the second mounting bar 29 and the multiple water equalizing bars 25, threadably connect the corresponding first locking nuts at both ends of the first mounting screws 24, threadably connect the corresponding second locking nuts at both ends of the second mounting screws 28, clamp the multiple water equalizing bars 25 and the air equalizing bars 4 through the first mounting bar 23 and the second mounting bar 29, so as to relatively fix the multiple air equalizing bars 4 and the multiple water equalizing bars 25.

[0044] Embodiment 2: Reference Figure 6 The difference between the embodiment of the present application and embodiment 1 is that, on the two strips 411 corresponding to the two sides of the gas equalizing strip 4, a first mounting groove 16 is opened on the connecting platform 12 of the strip 411 on one side, and a second mounting groove 17 is opened on the connecting platform 12 of the strip 411 on the other side. The first mounting groove 16 and the second mounting groove 17 are both located on the side of the corresponding connecting platform 12 away from the abutment piece 10, and the size and position of the first mounting groove 16 and the second mounting groove 17 are the same, so that when the strips 411 on both sides are spliced ​​together, the first mounting groove 16 and the second mounting groove 17 are away from each other.

[0045] Reference Figure 6 A first spring 18 is fixedly provided on the bottom wall of the first mounting groove 16, and the extension direction of the first spring 18 is parallel to the depth direction of the first mounting groove 16. A magnetic attraction plate 19 is fixed to one end of the first spring 18 away from the bottom wall of the first mounting groove 16. When the first spring 18 is in a natural state, a side of the magnetic attraction plate 19 away from the first spring 18 is flush with a side of the corresponding connecting platform 12 away from the abutment plate 10.

[0046] Reference Figure 6 , a magnetic block 20 is fixed to the bottom wall of the second mounting groove 17, a second spring 21 is fixedly arranged in the second mounting groove 17, the extension direction of the second spring 21 is parallel to the depth direction of the second mounting groove 17, the magnetic block 20 is located in the second spring 21, and a blocking piece 22 is fixed to one end of the second spring 21 away from the bottom wall of the second mounting groove 17, the thickness of the blocking piece 22 is less than 1mm, when the second spring 21 is in a natural state, the side of the blocking piece 22 away from the second spring 21 is flush with the side of the corresponding connecting platform 12 away from the abutment piece 10, and there is a certain gap between the magnetic block 20 and the blocking piece 22. The magnetic sheet 19 is used to be adsorbed and fixed with the magnetic block 20 on the adjacent gas equalizing strip 411 separated by the blocking piece 22, and the magnetic block 20 is used to adsorb the magnetic sheet 19 on the adjacent gas equalizing strip 411, and the adsorption force between the magnetic sheet 19 and the magnetic block 20 is greater than the sum of the elastic forces of the first spring 18 and the second spring 21.

[0047] The implementation principle of Example 2 of the present application is: when adjacent air-balancing strips 4 are butted together with the polymer film 1 in between, the strip 411 on the side where the magnetic block 20 is located is aligned with the strip 411 on the side where the magnetic sheet 19 is located in the adjacent air-balancing strip 4. At this time, the magnetic block 20 will absorb the magnetic sheet 19 on the strip 411 in the adjacent air-balancing strip 4 through the sealing sheet 22 and the polymer film 1, so that the magnetic sheet 19 pushes the corresponding sealing sheet 22 to be absorbed and cooperated with the aligned magnetic block 20, so that the first spring 18 is stretched and the second spring 21 is compressed. The adsorption and fixation between the magnetic block 20 and the magnetic sheet 19, on the one hand, helps to ensure the tension and flatness of the polymer film 1, so that the polymer film 1 between the adjacent air-balancing strips 4 is not prone to wrinkles, and on the other hand, it makes the polymer film 1 not prone to displacement. Since the first spring 18 is in a natural state and the second spring 21 is in a natural state, the side of the magnetic sheet 19 away from the first spring 18 is flush with the side of the corresponding connecting platform 12 away from the abutment sheet 10, and the side of the sealing sheet 22 away from the second spring 21 is flush with the side of the corresponding connecting platform 12 away from the abutment sheet 10, so that when the air equalizing strip 4 is placed in the corresponding polymer film 1, the polymer film 1 is not easily embedded in the first mounting groove 16 or the second mounting groove 17.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A polymer film assembly structure, characterized in that: It comprises a polymer film (1), an air equalizing component and a first assembly component, wherein a plurality of the polymer films (1) are arranged in sequence along the horizontal direction, and each of the side walls of the polymer films (1) is provided with an air inlet (2), and the air inlet (2) is used for allowing high-temperature steam output by a steam compressor to enter. The lower ends of the plurality of polymer films (1) are commonly connected with a condensation delivery pipe (3), and the air equalizing component comprises a plurality of air equalizing strips (4), and the air equalizing strips (4) correspond to the polymer films (1) one by one. The air equalizing strips (4) are located in the air inlet (2) of the corresponding polymer film (1), and adjacent air equalizing strips (4) are abutted with each other across the polymer film (1) to form an air inlet plane, and the first assembly component is used to relatively fix the plurality of air equalizing strips (4).

2. The polymer film assembly structure according to claim 1, characterized in that: The inner wall of the polymer film (1) is provided with a water channel, and the water channel includes a wavy point water channel (5), a wave water channel (6) and a straight water channel (7) arranged in sequence from top to bottom. The wavy point water channel (5) includes a plurality of circular thermoplastic points (51) arranged on the inner wall of the polymer film (1). The wave water channel (6) includes a plurality of wavy thermoplastic strips (61) arranged on the inner wall of the polymer film (1). The wavy thermoplastic strips (61) extend in a vertical direction, and wavy flow channels are formed between adjacent wavy thermoplastic strips (61). The straight water channel (7) includes a plurality of straight thermoplastic strips (71), one end of the straight thermoplastic strip (71) is connected to the wavy thermoplastic strip (61), and the other end extends in a direction close to the condensation conveying pipe (3), and a straight flow channel is formed between adjacent straight thermoplastic strips (71).

3. The polymer film assembly structure according to claim 2, characterized in that: A water outlet hole (8) is provided on the side wall of the lower end of the polymer film (1), and a guide plate (9) is installed on the inner side of the lower end of the polymer film (1). The guide plate (9) is aligned with the water outlet hole (8) on the corresponding polymer film (1) and is connected to the water outlet hole (8). The end of the straight thermoplastic strip (71) away from the wavy thermoplastic strip (61) extends to the guide plate (9), and the guide plates (9) in adjacent polymer films (1) are tightly pressed. Water collectors (30) are distributed under multiple polymer films (1), and the water collectors (30) are clamped between the guide plates (9) in any two adjacent polymer films (1). The guide plates (9) in the polymer films (1) are pressed in turn to form an internal horizontal pipeline, and the water collectors (30) are connected to the condensation conveying pipe (3).

4. The polymer film assembly structure according to claim 1, characterized in that: The air equalizing strip (4) comprises two air equalizing half strips (41) spliced ​​to each other, and a plurality of abutment sheets (10) are provided on the mutually adjacent sides of the two air equalizing half strips (41). The plurality of abutment sheets (10) are arranged at intervals along the length direction of the corresponding air equalizing half strips (41). The abutment sheets (10) on the two spliced ​​air equalizing half strips (41) correspond to each other one by one, and the corresponding two abutment sheets (10) abut against each other, so that the two air equalizing half strips (41) enclose a plurality of air equalizing holes (11).

5. The polymer film assembly structure according to claim 4, characterized in that: The air equalizing half strip (41) comprises a plurality of strips (411), the plurality of strips (411) are spliced ​​in sequence along their own length direction, the plurality of abutment sheets (10) are distributed at intervals along the length direction of the strips (411), the strips (411) of two air equalizing half strips (41) in the air equalizing strip (4) correspond to each other one by one, and the corresponding two strips (411) are spliced ​​together.

6. The polymer film assembly structure according to claim 5, characterized in that: Both ends of the strip (411) in the length direction are provided with connecting platforms (12), and two splicing pieces (13) are provided on the connecting platforms (12). A splicing protrusion (14) is provided on one splicing piece (13) on the connecting platform (12), and a splicing hole (15) is provided on the other splicing piece (13). The splicing protrusion (14) is used to be buckled with the splicing hole (15) on the adjacent strip (411) on the same gas-distributing half strip (41), and the splicing hole (15) is buckled with the splicing protrusion (14) on the adjacent strip (411) on the same gas-distributing half strip (41).

7. The polymer film assembly structure according to claim 6, characterized in that: A first mounting groove (16) is provided on the connecting platform (12) of the strip (411) on one side of the air equalizing strip (4), and a second mounting groove (17) is provided on the connecting platform (12) of the strip (411) on the other side. The first mounting groove (16) and the second mounting groove (17) are both located on the side of the corresponding connecting platform (12) away from the abutment sheet (10). A first spring (18) is provided in the first mounting groove (16). A magnetic attraction sheet (19) is provided at one end of the first spring (18) away from the bottom wall of the first mounting groove (16). When the first spring (18) is in a natural state, a side of the magnetic attraction sheet (19) away from the first spring (18) is flush with a side of the corresponding connecting platform (12) away from the abutment sheet (10); A magnetic block (20) is arranged in the second installation groove (17), a second spring (21) is arranged in the second installation groove (17), and a sealing piece (22) is arranged at one end of the second spring (21) away from the bottom wall of the second installation groove (17). When the second spring (21) is in a natural state, a side of the sealing piece (22) away from the second spring (21) is flush with a side of the corresponding connecting platform (12) away from the abutment piece (10). The magnetic piece (19) is used to be adsorbed and fixed to the magnetic block (20) on the strip (411) of the adjacent gas equalizing strip (4) separated by the sealing piece (22), and the adsorption force between the magnetic piece (19) and the magnetic block (20) is greater than the sum of the elastic forces of the first spring (18) and the second spring (21).

8. The polymer film assembly structure according to claim 1, characterized in that: The first assembly comprises a first mounting bar (23) and a first mounting screw (24), two first mounting bars (23) are provided, the plurality of gas equalizing bars (4) and the plurality of polymer films (1) of the gas equalizing member are located between the two first mounting bars (23), the first mounting screw (24) is passed through the first mounting bar (23), the gas equalizing bar (4) and the polymer film (1), the two ends of the first mounting screw (24) are threadedly connected with a first locking nut, and the first locking nut is in contact with a side of the first mounting bar (23) on the corresponding side away from the gas equalizing bar (4).

9. A polymer film assembly structure according to any one of claims 1 to 8, characterized in that: The assembly structure also includes a water balancing part and a second assembly part. The water balancing part includes a plurality of water balancing strips (25). The plurality of water balancing strips (25) are arranged in sequence in a horizontal direction. A clamping gap is formed between adjacent water balancing strips (25). The polymer film (1) corresponds to the clamping gap one by one. The upper end of the polymer film (1) is clamped between adjacent water balancing strips (25). The second assembly part is used to relatively fix the plurality of water balancing strips (25).

10. A method for assembling a polymer film, using the assembly structure according to claim 9, characterized in that: The steps include: Placing the air equalizing strip (4) in the air inlet (2) corresponding to the polymer film (1), and placing the upper end of the polymer film (1) between adjacent water equalizing strips (25); A plurality of air-distributing strips (4) are sequentially butted against each other with a polymer film (1) in between, and a plurality of water-distributing strips (25) are sequentially butted against each other with a polymer film (1) in between; The plurality of air distribution strips (4) are relatively fixed by the first assembly component, and the plurality of water distribution strips (25) are relatively fixed by the second assembly component so as to clamp the upper end of the polymer film (1).

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