CN113069779A

CN113069779A - Wiped film flash evaporation instrument

Info

Publication number: CN113069779A
Application number: CN202110352341.5A
Authority: CN
Inventors: 胡友华
Original assignee: Shanghai Pilotech Instr & Equipment Co ltd
Current assignee: Shanghai Pilotech Instr & Equipment Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-07-06

Abstract

The utility model relates to a wiped film type flash evaporation appearance, which comprises a frame, be provided with the evaporating pipe in the frame, the evaporating pipe is vertical setting, evaporating pipe upside intercommunication is provided with the inlet pipe, evaporating pipe downside intercommunication is provided with the discharging pipe, still be provided with the heating device who is used for the heating of evaporating pipe outside wall in the frame, be provided with the pivot in the evaporating pipe, the pivot is vertical setting, pivot and the coaxial setting of evaporating pipe, the one side of pivot radial direction sets up and scrapes the lamina membranacea, it is vertical setting to scrape the lamina membranacea, scrape one side and pivot fixed connection that the lamina membranacea deviates from the pivot along its self width direction, it sets up with evaporating pipe inside wall interval to scrape the lamina membranacea along its self width direction one side that deviates from the pivot, the pivot upper end is provided with and is used for driving the pivot around its self axis direction pivoted drive assembly. This application has the effect that improves production efficiency.

Description

Wiped film flash evaporation instrument

Technical Field

The application relates to the technical field of liquid concentration equipment, in particular to a wiped film flash evaporator.

Background

In the process of chemical production or pharmaceutical production, liquid materials are often required to be concentrated, and then a finished product with higher concentration is obtained.

In laboratory or mill, an evaporimeter, including the frame, fluid heating pot in the frame is provided with the evaporating pipe in the fluid heating pot, still is provided with the condenser pipe in the frame, and the condenser pipe is vertical setting, the mouth of pipe intercommunication of condenser pipe and evaporating pipe, and the evaporating pipe is along the one side slope that is close to the condenser pipe downwards setting of keeping away from the condenser pipe. The outlet at the lower end of the condensation pipe is communicated with a collecting bottle. The liquid material comprises components to be concentrated and components to be removed, the liquid material is placed in an evaporation pipe by a worker, when the boiling point of the components to be concentrated is higher than that of the components to be removed, the removed components are boiled and evaporated, after entering a condensation pipe, the removed components are condensed and fall into a collection bottle, and the concentrated finished product is left in the evaporation pipe; when the boiling point of the component to be concentrated is low and the boiling point of the component to be removed is low, the component to be concentrated is boiled and evaporated, the component to be concentrated falls into the collecting bottle after being condensed after entering the condensing tube, and the concentrated finished product is positioned in the collecting bottle. In this way, the liquid material is concentrated.

Aiming at the related technologies, a worker injects a liquid material into an evaporation tube to enable the volume of the liquid in the evaporation tube not to exceed fifty percent of the volume of the evaporation tube, the worker immerses the evaporation tube into the liquid in a fluid heating pot to heat the material in the evaporation tube, and when the liquid material to be concentrated is more, the liquid material needs to be heated in batches.

Disclosure of Invention

In order to improve the efficiency to liquid material concentration, the application provides a wiped film flash evaporation appearance.

The application provides a wiped film flash evaporation appearance adopts following technical scheme:

a wiped film flash evaporator comprises a rack, an evaporation tube is arranged in the rack and is vertically arranged, an inlet pipe is arranged on the upper side of the evaporation tube in a communicated manner, a discharge pipe is arranged on the lower side of the evaporation tube in a communicated manner, a heating device for heating the outer side wall of the evaporation tube is also arranged in the rack, a rotating shaft is arranged in the evaporation tube and is vertically arranged, the rotating shaft and the evaporation tube are coaxially arranged, a wiped film plate is arranged on one side of the radial direction of the rotating shaft and is vertically arranged, the wiped film plate is fixedly connected with the rotating shaft along the side of the wiped film plate, which deviates from the rotating shaft along the width direction of the wiped film plate, and is arranged at intervals with the inner side wall of the evaporation tube along the side of the wiped film plate, a driving assembly for driving the rotating shaft to rotate around the axis direction of the rotating shaft is arranged at the upper, and the inlet of the vacuum pump is communicated with the evaporation pipe.

Through adopting above-mentioned technical scheme, in the regulation operation, the staff adjusts vacuum pump and heating device to adjust the temperature and the pressure in the evaporating pipe. In the actual work, the staff pours into the evaporating pipe into the liquid material of unconcentration into along the inlet pipe in, drive assembly drive pivot, it rotates around rotation axis direction to drive the wiped film board, thereby with the liquid material coating on the inside wall of evaporating pipe, form the film, evaporation after partial liquid in the liquid material is heated, liquid that is not evaporated receives the action of gravity after, the inside wall downflow along the evaporating pipe, and flow from the discharging pipe, the gas of evaporation is taken out by the vacuum pump, and discharge from the vacuum pump export. In this way, the liquid material is continuously injected into the evaporation tube along the feeding tube, and the material coated on the inner side wall of the evaporation tube is rapidly heated and evaporated, so that the concentration efficiency is improved, and the situation that the material is heated for a long time and is deteriorated is reduced.

Preferably, the inner side of the evaporation tube is provided with a fixing frame, the fixing frame is positioned at the lower side of the evaporation tube, and the rotating shaft penetrates through the fixing frame along the axis direction of the rotating shaft and is rotatably connected with the fixing frame.

Through adopting above-mentioned technical scheme, the mount helps improving the stability of pivot to help reducing the pivot and rotate the in-process, the pivot skew leads to scraping the interval unstability between lamina membranacea and the evaporating pipe, makes the liquid film thickness of the coating of lamina membranacea on the evaporating pipe lateral wall inhomogeneous, and the condition that influences the concentration effect takes place.

Preferably, the evaporating pipe lower extreme is and opens the setting, the evaporating pipe downside is provided with the sealed tube, the sealed tube upside communicates with the evaporating pipe is fixed, the sealed tube downside communicates with the discharging pipe is fixed, the sealed tube outside and frame fixed connection, mount and sealed tube inside wall fixed connection.

Through adopting above-mentioned technical scheme, sealed tube and mount help further improving the stability of pivot to help further reducing the pivot unstability, influence the condition of concentrated effect.

Preferably, a fixing assembly for fixing the condensation pipe is arranged on the rack.

Through adopting above-mentioned technical scheme, fixed subassembly fixes the condenser pipe in the frame, makes things convenient for the knifing flash distillation machine to last the during operation, continuously uses the condenser pipe to liquid condensation.

Preferably, the fixed subassembly includes the mounting panel, the mounting panel is the level setting, be provided with the third arc surface on the mounting panel, the condenser pipe lateral wall supports tightly on the third arc surface, be provided with soft piece on the mounting panel, soft piece is vertical setting, soft piece parcel is on the condenser pipe deviates from the lateral wall of third arc surface, the both sides of soft piece length direction respectively with mounting panel fixed connection.

Through adopting above-mentioned technical scheme, in the installation, the staff supports tightly at the third arc surface with a side of condenser pipe lateral wall, wraps up soft piece on the condenser pipe side of keeping away from the mounting panel, with soft piece and mounting panel fixed connection to the convenience is fixed the condenser pipe in the frame.

Preferably, the rack is further provided with a condensation pipe, and the upper side of the condensation pipe is communicated with the outlet of the vacuum pump.

Through adopting above-mentioned technical scheme, in the debugging operation, the staff lets in coolant in the condenser pipe, and the evaporating pipe is taken out by the vacuum pump to vapour to the condenser pipe of putting into, and steam is cooled into liquid, along condenser pipe export discharge condenser pipe.

Preferably, a return pipe is arranged on the rack, one end of the return pipe is communicated with the upper side of the evaporation pipe, one end of the return pipe, which is far away from the evaporation pipe, extends out of the rack, and a suction pump is arranged on one side, which extends out of the rack, of the return pipe.

Through adopting above-mentioned technical scheme, the staff lets in the back flow with the liquid after the concentration, and the suction pump on the back flow is with the liquid suction evaporation tube once more after the concentration to carry out the secondary concentration to liquid, the back flow makes things convenient for staff continuous operation.

Preferably, drive assembly is driving motor, the driving motor output shaft is coaxial fixed with the pivot, one side of evaporating pipe diameter direction is provided with the universal driving shaft, the universal driving shaft is vertical setting, equal coaxial fixed with belt pulley, two on pivot and the universal driving shaft be provided with the belt on the belt pulley, two the belt pulley passes through belt transmission and connects, heating device includes the heating jacket, the heating jacket cover is established on the evaporating pipe, heating jacket inside wall and evaporating pipe outside wall butt, the heating jacket rotates with the evaporating pipe around evaporating pipe axis direction and is connected, coaxial fixed with drive gear on the universal driving shaft, the heating jacket includes driven gear, drive gear and driven gear meshing cooperation.

By adopting the technical scheme, the driving motor drives the rotating shaft to rotate, and simultaneously drives the linkage shaft to rotate around the axis of the linkage shaft through the belt pulley and the belt, so that the transmission gear is driven to rotate around the axis direction of the transmission gear, the driven gear is driven to rotate, the heating sleeve rotates around the axis direction of the evaporation tube, the heating tube uniformly heats the outer side wall of the evaporation tube, the uneven heating of the outer side wall of the evaporation tube is favorably reduced, and the situation that liquid materials on the inner side wall of the evaporation tube are excessively heated and deteriorate is caused.

Preferably, the inner side of the heating sleeve is provided with a positioning groove from inside to outside along the radial direction of the heating sleeve, a PCT heating plate is arranged in the heating sleeve and fixed in the positioning groove, and the PCT heating plate and the film scraping plate are arranged correspondingly.

By adopting the technical scheme, the PCT heating plate is fixed in the positioning groove by a worker and corresponds to the film scraping plate, and the PCT heating plate and the film scraping plate can synchronously rotate through the belt pulley, the belt, the linkage shaft, the transmission gear and the driven gear, so that a formed film after the film scraping of the film scraping plate is uniformly heated.

Preferably, a PCT heating pipe is arranged in the rotating shaft.

Through adopting above-mentioned technical scheme, the PCT heating pipe in the pivot helps improving heating device's heating efficiency, helps making liquid be heated evenly to help improving the concentrated efficiency of wiped film flash evaporation appearance.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by means of the evaporation tube, the rotating shaft, the film scraping plate, the vacuum pump and the heating device, the boiling point temperature required by the evaporation of the liquid to be evaporated is reduced, meanwhile, the heating time of the liquid is reduced, and the concentration efficiency of the film scraping type flash evaporator is improved;

2. the condensing pipe is used for condensing steam generated in the concentration process conveniently, so that liquids with different components and different boiling points can be concentrated;

3. with the help of the return line and the suction pump, the liquid after the primary concentration can be conveniently concentrated for the second time or for multiple times by the working personnel.

Drawings

FIG. 1 is a schematic axial view mainly showing the overall structure of a wiped film flash evaporator in the embodiment of the present application;

FIG. 2 is a schematic axial view mainly showing the overall structure of the evaporating tube in the embodiment of the present application;

FIG. 3 is a schematic axial view mainly showing the inner structure of the evaporating tube in the embodiment of the present application;

FIG. 4 is a cross-sectional view of the embodiment of the present application, mainly embodying the sealing tube and the discharge end;

FIG. 5 is a sectional view mainly showing the inner structure of the condenser tube in the embodiment of the present application;

FIG. 6 is a sectional view mainly showing the inner structure of the condenser tube in the embodiment of the present application;

fig. 7 is a schematic axial view mainly showing the overall structure of the fixing member in the embodiment of the present application.

Reference numerals: 1. a frame; 11. a mounting frame; 111. a peephole; 12. a plate is penetrated; 2. an evaporation tube; 21. a film scraping device; 211. a rotating shaft; 212. scraping a membrane plate; 22. a drive assembly; 221. a drive motor; 23. a heating device; 231. heating a jacket; 232. a driven gear; 233. positioning a groove; 234. a PCT heating plate; 235. a belt pulley; 236. a belt; 237. a linkage shaft; 238. a transmission gear; 239. a limiting ring; 24. a sealing tube; 241. a fixed mount; 2411. a first support plate; 2412. a second support plate; 242. a groove is embedded; 243. mounting grooves; 25. a feed pipe; 26. a discharge pipe; 261. a first tapered tube; 262. a first material receiving pipe; 263. a first shut-off valve; 27. an air outlet pipe; 271. a vacuum pump; 28. a return pipe; 281. a second stop valve; 3. grinding a mouth clamp; 4. a fixing assembly; 41. mounting a plate; 411. a third arc surface; 42. a flexible sheet; 421. a first waist-shaped groove; 43. a fixing plate; 431. fixing grooves; 44. fixing the bolt; 45. a sliding frame; 451. a sliding groove; 452. a second waist-shaped groove; 46. locking the bolt; 5. a condenser tube; 51. an inner tube; 52. a cooling tube; 53. a coil pipe; 531. a first through pipe; 532. a second pipe; 533. a support frame; 54. an outer sleeve; 541. a gathering end; 542. a second discharge pipe; 5421. a second tapered tube; 543. a second material receiving pipe; 544. an air inlet pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses wiped film flash evaporation appearance.

Referring to fig. 1 and 2, the wiped film flash evaporator comprises a frame 1, wherein the frame 1 is vertically arranged, an installation frame 11 is arranged on one side of the frame 1 in the width direction, and the installation frame 11 is arranged on one side of the frame 1 in the length direction. Be provided with evaporating pipe 2 in the mounting bracket 11, evaporating pipe 2 is vertical setting, is provided with knifing device 21 in the evaporating pipe 2. A heating device 23 is also arranged in the mounting frame 11. Frame 1 is provided with condenser pipe 5 along one side that its self length direction deviates from mounting bracket 11, and condenser pipe 5 is vertical setting, and 2 upside intercommunications of evaporating pipe are provided with outlet duct 27, and outlet duct 27 is the level setting, is provided with vacuum pump 271 on the outlet duct 27, and vacuum pump 271 air inlet and outlet duct 27 communicate along the one end that its self axis direction deviates from evaporating pipe 2, and vacuum pump 271 gas outlet and 5 upside intercommunications of condenser pipe.

In the debugging operation, the worker starts the wiping device 21, the heating device 23, and the vacuum pump 271, and adjusts the heating device 23 and the vacuum pump 271 in accordance with the boiling point of the concentrated component and the boiling point of the removed component. In actual work, the staff injects the cooling water into the condenser pipe 5, the staff injects the material that needs to be concentrated into the evaporating pipe 2 from the upside, the film scraping device 21 and the action of gravity make the liquid material form the film on the inside wall of the evaporating pipe 2, and flow downwards, in the process of falling, the part of liquid with higher boiling point flows downwards under the action of gravity and is discharged from the evaporating pipe 2 from the lower end of the evaporating pipe 2, and the part with lower boiling point evaporates in a vaporization mode, is pumped out of the evaporating pipe 2 by the vacuum pump 271, is discharged into the condenser pipe 5, and is discharged from the lower end of the condenser pipe 5 through condensation. The vacuum pump 271 makes the pressure inside the evaporation tube 2 lower, which helps to reduce the boiling point of the liquid to be evaporated, thereby helping to reduce the amount of heat required to be absorbed by the liquid to be evaporated during evaporation, and thus allowing the liquid to be evaporated to evaporate in a shorter time. The wiping device 21 helps to increase the contact area of the liquid material with the inner side wall of the evaporating tube 2, thereby helping to reduce the time required for the evaporated liquid to be evaporated and thus helping to reduce the time required for concentrating the material.

Specifically, see fig. 2, fig. 3, knifing device 21 includes pivot 211, pivot 211 is vertical setting, pivot 211 and the coaxial setting of evaporating pipe 2, pivot 211 upper end is provided with drive assembly 22, drive assembly 22 is driving motor 221, side fixed connection on driving motor 221 shell upside and the mounting bracket 11, the vertical downward setting of driving motor 221 output shaft, driving motor 221 lower extreme runs through the last lateral wall of evaporating pipe 2 along vertical direction, and fixed with evaporating pipe 2 lateral wall, it has the sealed glue of vacuum to scribble in the clearance between evaporating pipe 2 and the driving motor 221 shell. An output shaft of the driving motor 221 is coaxially fixed with the rotating shaft 211. One side of the radial direction of pivot 211 is provided with scrapes the lamina membranacea 212, and scrapes the lamina membranacea 212 and is vertical setting, and it is parallel with the radial direction of output shaft to scrape lamina membranacea 212 width direction, and one side that scrapes the lamina membranacea 212 width direction and be close to pivot 211 sets up with pivot 211 fixed connection, scrapes the one end that the lamina membranacea 212 width direction deviates from

pivot

211 and 2 inside wall intervals of evaporating pipe, and the interval of the

lamina membranacea

212 and 2 inside walls of evaporating pipe is less.

The plurality of the wiping film plates 212 are arranged in a circumferential array around the rotating shaft, and in the embodiment, three wiping film plates 212 are arranged in a circumferential array around the rotating shaft. The upside of evaporating pipe 2 is provided with inlet pipe 25, and inlet pipe 25 is vertical setting, and inlet pipe 25 runs through the lateral wall of evaporating pipe 2 upside along its self axis direction. The 2 upside of evaporating pipe still is provided with outlet duct 27, outlet duct 27 is the level setting, outlet duct 27 runs through the lateral wall of 2 upside of evaporating pipe along its self axis direction, in the real work, the staff injects the liquid material into 2 inboards of evaporating pipe along inlet pipe 25, driving motor 221 drive pivot 211 rotates at a high speed, thereby it rotates at a high speed to drive the three axis of scraping the lamina membranacea 212 along pivot 211 respectively, thereby evenly coating the liquid material on the inside wall of evaporating pipe 2, help improving the area of contact of liquid material and 2 inside walls of evaporating pipe, help shortening the time that needs are evaporated by the liquid vaporization of vaporization, thereby improve the off-the-shelf production efficiency after the concentration.

The heating device 23 comprises a linkage shaft 237, the linkage shaft 237 is vertically arranged, and the linkage shaft 237 is positioned on one side of the radial direction of the evaporation tube 2. The belt pulleys 235 are coaxially fixed on the upper sides of the rotating shaft 211 and the linkage shaft 237, any one of the belt pulleys 235 is horizontally arranged, the two belt pulleys 235 are sleeved with the belt 236, and when the rotating shaft 211 rotates, the belt pulleys 235 and the belt 236 drive the linkage shaft 237 to rotate around the axis direction of the linkage shaft 237. A transmission gear 238 is coaxially fixed on the lower side of the linkage shaft 237, the transmission gear 238 is horizontally arranged, and the linkage shaft 237 drives the transmission gear 238 to rotate around the axis direction thereof. The cover is equipped with heating jacket 231 on evaporating pipe 2, and heating jacket 231 includes driven gear 232, and driven gear 232 is horizontal setting, and driven gear 232 and drive gear 238 mesh cooperation. The driven gear 232 rotates to drive the driving gear 238 to rotate around the axis of the evaporating tube 2. The driven gear 232 is provided with a positioning groove 233 on the inner side, and the positioning groove 233 penetrates through the inner side wall of the driven gear 232 from the inside to the outside along the radial direction of the driven gear 232. The driven gear 232 is provided with a PCT heating plate 234, the PCT heating plate 234 is fixedly connected with the driven gear 232, and one side surface of the PCT heating plate 234 close to the evaporation tube 2 along the radial direction of the driven gear 232 is abutted on the outer side wall of the evaporation tube 2. An electric slip ring is arranged on the PCT heating plate 234, and the PCT heating plate 234 is electrically connected with an external power supply through the electric slip ring. The plurality of PCT heating plates 234 are arranged in a circumferential array around the axial direction of the evaporation tube 2, and the plurality of PCT heating plates 234 are arranged corresponding to the wiping plate 212, in the embodiment of the present invention, three PCT heating plates 234 are arranged. In practical use, a worker energizes the PCT heating plate 234 to start the driving motor 221, the driving motor 221 drives the rotating shaft 211 to rotate and drives the heating sleeve 231 to rotate, so that the PCT heating plate 234 rotates around the axis of the evaporation tube 2, and the heating sleeve 231 heats the outer side wall of the evaporation tube 2, so that part of liquid in the liquid material is vaporized and evaporated. The PCT heating plate 234 arranged in a rotating way helps to reduce the situation that the outer side wall of the evaporation tube 2 is heated unevenly, and the liquid state on the inner side wall of the evaporation tube 2 is influenced. The PCT heating pipe is arranged in the film scraping plate 212, which helps to increase the temperature rising speed of the evaporating pipe 2, and helps to make the temperatures of all parts in the evaporating pipe 2 the same, thereby helping to reduce the occurrence of the condition that the temperature of the outer side wall is high.

Referring to fig. 2 and 4, a limiting ring 239 is arranged on the upper side of the driven gear 232, the limiting ring 239 is fixedly connected with the evaporation tube 2, one limiting ring 239 is arranged on each of two sides of the driven gear 232 in the vertical direction, and one side face, close to each other, of each of the two limiting rings 239 abuts against two side faces of the driven gear 232 in the vertical direction. In actual operation, the limit ring 239 helps to reduce the possibility of vertical play during the rotation of the driven gear 232, and helps to improve the stability of the driven gear 232.

Referring to fig. 3 and 4, a sealing tube 24 is arranged on the lower side of the evaporation tube 2, the sealing tube 24 is vertically arranged, and the sealing tube 24 and the evaporation tube 2 are coaxially arranged. The upper side of the sealing tube 24 is provided with an embedded groove 242 from top to bottom, and the lower end of the evaporation tube 2 is embedded and matched with the embedded groove 242. Vacuum sealant is arranged between the lower side wall of the evaporation tube 2 and the side wall of the embedded groove 242. A discharge pipe 26 is arranged on the lower side of the sealing pipe 24, the discharge pipe 26 is vertically arranged, and the discharge pipe 26 and the sealing pipe 24 are coaxially arranged. An installation groove 243 is formed in the lower side of the sealing pipe 24 from bottom to top, the upper end of the discharge pipe 26 is embedded in and matched with the installation groove 243, and vacuum sealant is arranged between the upper side wall of the discharge pipe 26 and the side wall of the installation groove 243. The outer side wall of the sealing tube 24 is fixedly connected with the mounting frame 11.

The fixing frame 241 is arranged in the sealing tube 24 and horizontally arranged, the fixing frame 241 comprises a first supporting plate 2411 and a second supporting plate 2412, the first supporting plate 2411 and the second supporting plate 2412 are horizontally arranged, and the first supporting plate 2411 and the second supporting plate 2412 are fixedly connected. The length direction of the first supporting plate 2411 is parallel to the width direction of the second supporting plate 2412, and both sides of the length direction of the first supporting plate 2411 are fixedly connected with the inner side wall of the sealing tube 24 respectively. The two sides of the second supporting plate 2412 in the length direction are fixedly connected with the inner side wall of the sealing tube 24 respectively. The rotating shaft 211 penetrates through a joint of the first supporting plate 2411 and the second supporting plate 2412 along a vertical direction, and is rotatably connected with the fixing frame 241. The fixing frame 241 helps to improve the stability of the rotating shaft 211 and help to ensure that the gap between the film scraping plate 212 and the inner side wall of the sealing tube 24 is stable and constant.

Discharging pipe 26 downside integrated into one piece has first conical pipe 261, and first conical pipe 261 is vertical setting, and the diameter of first conical pipe 261 lower extreme is less than the diameter of first conical pipe 261 upper end, and the diameter of first conical pipe 261 upper end is less than the diameter of discharging pipe 26 upper end, and discharging pipe 26 is along vertical direction downwards and inwards shrink to first conical pipe 261 upper end to form first arc surface. The discharging pipe 26 is provided with a first material receiving pipe 262 on the lower side, the first material receiving pipe 262 is arranged vertically, the first material receiving pipe 262 is conical, the first material receiving pipe 262 is sleeved on the outer side of the first conical pipe 261, and the lower end of the first material receiving pipe 262 is communicated with a first stop valve 263. The outer side wall of the first conical pipe 261 and the inner side wall of the first material receiving pipe 262 are both formed with frosted surfaces. The outer side wall of the first conical pipe 261 is tightly abutted with the inner side wall of the first material receiving pipe 262. The first taper pipe 261 and the first material receiving pipe 262 are detachably fixed by the nip 3. In practical use, the worker sleeves the first material receiving pipe 262 on the outer side of the first conical pipe 261, and the conical pipe and the frosted surface help to improve the tightness of the connection between the first material receiving pipe 262 and the first conical pipe 261. The first material receiving pipe 262 and the first conical pipe 261 can be detachably fixed to the grinding clamp 3, and therefore workers can conveniently replace instruments connected with the material discharging pipe 26.

Referring to fig. 5, an air inlet pipe 544 is further arranged on the upper side of the condensation pipe 5 in a communicating manner, and one end of the air inlet pipe 544, which is far away from the condensation pipe 5, is communicated with the outside. The air inlet pipe 544 helps to ensure that the air pressure inside and outside the condensation pipe 5 is balanced, and helps to reduce the phenomenon that the vacuum pump exhausts air into the condensation pipe 5 all the time, which results in higher air pressure in the condensation pipe 5 and too fast air flow rate, so that uncondensed air is discharged from the outlet of the first material receiving pipe 262, and the condensation rate of the condensation pipe 5 is affected.

Referring to fig. 1 and 5, the condensation pipe 5 includes a cooling pipe 52, the cooling pipe 52 is vertically disposed, an inner pipe 51 is integrally formed in the cooling pipe 52, an axial direction of the inner pipe 51 is parallel to an axial direction of the cooling pipe 52, and an upper end of the inner pipe 51 penetrates through the cooling pipe 52 along the axial direction thereof. An outer sleeve 54 is sleeved outside the cooling pipe 52, a second discharging pipe 542 is communicated with the lower end of the outer sleeve 54, and the axial direction of the second discharging pipe 542 is coaxial with the axial direction of the outer sleeve 54. The lower end of the inner tube 51 is provided with a drip port located inside the outer sleeve 54. The upper end of the inner tube 51 is bent to one side and penetrates the side wall of the outer sleeve 54. The inner tube 51 is communicated with the air outlet of the vacuum pump 271. Before starting the wiped film flash evaporator, a worker introduces a cooling medium into the cooling pipe 52, in actual work, part of liquid in the evaporation pipe 2 is vaporized and evaporated after being heated, and the vacuum pump 271 pumps the steam out of the evaporation pipe 2 and discharges the steam into the inner pipe 51. The vapor flows downward in the vertical direction, and the cooling medium makes the temperature of the side wall of the inner tube 51 lower, so that the vapor near the side wall of the inner tube 51 is liquefied, and the liquefied liquid drops into the outer sleeve 54 along the dropping hole and flows out of the condensation pipe 5 along the second discharging pipe 542. The non-liquefied gas overflows the inner pipe 51 along the dropping hole and fills the outer sleeve 54, and after contacting the outer side wall of the outer sleeve 54, the steam is further liquefied and flows out of the condensation pipe 5 along the second discharge pipe 542. In this way, the condensation efficiency of the condensation pipe 5 and thus the working efficiency of the wiped film flash evaporator can be improved.

Referring to fig. 5 and 6, a coil 53 is wound around the outer side wall of the cooling pipe 52, and the inner side of the coil 53 is spaced from the outer side wall of the cooling pipe 52. One end of the coil pipe 53 along the upper side of the vertical direction is communicated with the upper end of the cooling pipe 52, one end of the coil pipe 53 along the lower side of the vertical direction is provided with a second through pipe 532, the second through pipe 532 is a water outlet pipe, the axial direction of the water outlet pipe is parallel to any radial direction of the cooling pipe 52, and the water outlet pipe penetrates through the outer sleeve 54 along the axial direction of the water outlet pipe. The lower end of the cooling pipe 52 is provided with a first through pipe 531, the first through pipe 531 is a water inlet pipe, the axial direction of the water inlet pipe is parallel to any radial direction of the cooling pipe 52, and the water inlet pipe penetrates through the outer sleeve 54 along the axial direction of the water inlet pipe. In actual work, staff lets in cooling medium to cooling tube 52 along the inlet tube, and when the last liquid level of cooling medium arrived coil 53 and cooling tube 52 intercommunication department, cooling medium got into in the coil 53, flowed along coil 53, until flowing from second row material pipe 542 to make the cooling medium circulation in cooling tube 52 and the coil 53, help improving the cooling efficiency of condenser pipe 5. Meanwhile, the steam in the inner pipe 51 flows downwards from top to bottom, the cooling medium in the cooling pipe 52 flows upwards from bottom to top, the steam in the outer sleeve 54 flows upwards from bottom to top, and the cooling medium in the coil 53 flows downwards from top to bottom, so that the steam and the cooling medium form convection, and the condensation speed is further improved.

The cooling pipe 52 is provided with a support 533, the upper end of the support 533 is integrally formed with the lower end of the coil 53, and the lower end of the support 533 is integrally formed with the outer side wall of the cooling pipe 52. The support shelf 533 helps to improve the stability of the connection between the coil 53 and the cooling tube 52.

The lower end of the inner side wall of the outer sleeve 54 is formed with a gathering end 541, the gathering end 541 shrinks from top to bottom and forms a second arc surface, and the second discharging pipe 542 is located at the lowest end. The second arcuate surface helps reduce the dead space of outer sleeve 54, allowing condensed liquid to flow along the inner sidewall of outer sleeve 54 into second drain 542 and out of condenser tube 5.

Referring to fig. 1 and 6, a second taper pipe 5421 is formed at the lower end of the second discharging pipe 542, a second material receiving pipe 543 is sleeved outside the second taper pipe 5421, and frosted surfaces are formed on both the inner side wall of the second material receiving pipe 543 and the outer side wall of the second taper pipe 5421. The inner side wall of the second material receiving pipe 543 is tightly abutted against the outer side wall of the second conical surface. The second material discharging pipe 542 and the second material receiving pipe 543 are detachably fixed through the ground clamp 3. In practical use, the staff establishes second material receiving pipe 543 cover on second row material pipe 542, and conical surface and frosting help improving the inseparable degree of being connected between second row material pipe 542 and the second material receiving pipe 543 to improve condenser pipe 5's leakproofness. The mill mouth presss from both sides 3 can dismantle fixed second row material pipe 542 and second material receiving pipe 543, makes things convenient for the staff to change the instrument that second row material pipe 542 connected.

Referring to fig. 1 and 2, the upper end of the evaporation tube 2 is further provided with a return tube 28, one end of the return tube 28 is communicated with the upper side of the evaporation tube 2, and one end of the return tube 28, which is far away from the evaporation tube 2, penetrates through the rack 1 along the axis direction thereof and extends out of the rack 1. The return pipe 28 is provided with a suction pump in communication with a side thereof near the evaporation pipe 2 in the direction of its own axis, and a second stop valve 281 is provided in communication with a side of the return pipe 28 extending out of the housing 1 in the direction of its own axis. In actual work, when the liquid after the concentration needs to be concentrated again, the staff can communicate first material receiving pipe 262 or second material receiving pipe 543 and back flow 28, start the suction pump, make the liquid that needs to carry out the concentration once more get into evaporating pipe 2 in, carry out the secondary concentration, make things convenient for the staff to operate, help reducing the time of secondary concentration simultaneously.

Referring to fig. 1 and 7, a fixing assembly 4 is disposed on a side of the rack 1 facing away from the mounting frame 11 in the length direction, the fixing assembly 4 includes a sliding frame 45, the sliding frame 45 is disposed horizontally, the sliding frame 45 is fixedly connected to the rack 1 along a side of the rack 1 close to the rack 1 in the thickness direction, a sliding groove 451 is disposed on the sliding frame 45 along the side of the rack 1 facing away from the rack 1 in the thickness direction, the sliding groove 451 penetrates the sliding frame 45 along the side of the rack 1 facing away from the rack 1 in the thickness direction to the side close to the rack 1, a mounting plate 41 is disposed on the sliding frame 45, the mounting plate 41 is disposed horizontally, the mounting plate 41 and the sliding groove 451 are slidably fitted in the thickness direction of the rack 1, a second waist-shaped groove 452 is disposed on the sliding frame 45 along the side of the rack 1 in the length direction, the length direction of the second waist-shaped groove 452 is parallel to the height direction of, the sliding frame 45 is provided with a locking bolt 46, the locking bolt 46 is horizontally arranged, the axial direction of the locking bolt 46 is parallel to the length direction of the rack 1, and the locking bolt 46 penetrates through the second waist-shaped groove 452 along the axial direction of the locking bolt 46 and abuts against the mounting plate 41.

One side of the mounting plate 41, which is away from the rack 1 along the width direction of the rack 1, is provided with a third arc surface 411, and the outer side wall of the outer sleeve 54 abuts against the third arc surface 411. One side that mounting panel 41 deviates from frame 1 along frame 1 width direction is provided with soft piece 42, and soft piece 42 is vertical setting, and soft piece 42 parcel is on outer sleeve 54 deviates from the lateral wall of third arc surface 411 along frame 1 width direction, and soft piece 42 length direction's both ends respectively with mounting panel 41 along frame 1 length direction's both sides fixed connection. The fixed component 4 is provided with a plurality of along vertical direction interval, and in the embodiment of this application, the fixed component 4 is provided with two. By the mode, the condensing pipe 5 is conveniently fixed on the rack 1 by workers, and the condition that the condensing pipe 5 is damaged in the installation process is reduced.

A fixing plate 43 is arranged on one side of the flexible sheet 42 in the length direction, a fixing groove 431 is formed in one side, close to the mounting plate 41, of the fixing plate 43 in the length direction of the rack 1 and on one side, away from the mounting plate 41, of the fixing plate 43 in the length direction of the rack 1, the fixing groove 431 penetrates through the fixing plate 43 in the width direction of the rack 1, and the flexible sheet 42 is located between the fixing plate 43 and the mounting plate 41. The first waist-shaped groove 421 is formed in the soft sheet 42, the thickness direction of the mounting plate 41 in the length direction of the first waist-shaped groove 421 is parallel, the first waist-shaped groove 421 penetrates through the fixing plate 43 of the soft sheet 42 along the thickness direction of the soft sheet 42 and is provided with the fixing bolt 44, the fixing bolt 44 is horizontally arranged, the fixing bolt 44 penetrates through the fixing plate 43 along the axis direction of the fixing bolt 44, the fixing bolt 44 penetrates through the first waist-shaped groove 421 along the axis direction of the fixing bolt 44 and penetrates through the mounting plate 41 along the axis direction of the fixing bolt 44 and is in threaded fit with the mounting plate.

Two fixing bolts 44 are provided at intervals in the width direction of the frame 1. The first waist grooves 421 are provided at intervals on both sides of the flexible sheet 42 in the longitudinal direction. The fixing plates 43 are provided one on each side of the mounting plate 41 in the longitudinal direction of the chassis 1. In the debugging operation, the staff changes condenser pipe 5 of different diameters as required concentrated material, the staff unscrews locking bolt 46, adjusts the relative position of mounting panel 41 and the groove 451 that slides, screws up locking bolt 46, thereby it is fixed with mounting panel 41 and the frame 45 that slides, adjust fixing bolt 44 and the first waist type groove 421 that corresponds, thereby make soft piece 42 parcel in the condenser pipe 5 outside, make soft piece 42 and arc surface support tightly in condenser pipe 5 radial direction's both sides, fix fixing bolt 44 and mounting panel 41 again, thereby make things convenient for the staff to fix condenser pipe 5 of different diameters, help improving the adaptability of wiped film type flash evaporation appearance.

Evaporating pipe 2, discharging pipe 26, condenser pipe 5 are glassware, help making things convenient for the staff to wash the wiped film formula flash evaporation appearance.

Referring to fig. 1, a peephole 111 is provided on one side of the mounting frame 11 departing from the rack 1 along the width direction of the rack 1, and the peephole 111 penetrates through the side wall of the mounting frame 11 departing from one side of the rack 1 along the width direction of the rack 1. Be provided with through plate 12 on the mounting bracket 11, through plate 12 is vertical setting, and through plate 12 can be dismantled fixedly with mounting bracket 11. The transparent plate 12 and the peephole 111 facilitate the staff to observe the liquid state in the evaporation tube 2 in the working process of the wiped film flash evaporator.

The implementation principle of a wiped film flash evaporation instrument of the embodiment of the application is as follows: in the debugging operation, the staff adjusts the temperature of the vacuum pump 271, the condenser pipe 5 and the heating device 23 according to the liquid material concentrated by the actual need, in the actual work, the staff introduces the liquid material into the evaporation pipe 2 along the feeding pipe 25, the driving motor 221 drives the rotating shaft 211 to rotate around the axis of the driving motor, the film scraping plate 212 coats the liquid material on the inner side wall of the evaporation pipe 2, the liquid flows downwards under the action of gravity, the heating device 23 heats the evaporation pipe 2, thereby vaporizing part of the liquid with lower boiling point, pumping out the evaporation tube 2 by a vacuum pump 271, discharging into a condensation tube 5, the steam flows downward in a vertical direction through the inner tube 51 of the condensation duct 5, the cooling medium makes the temperature of the sidewall of the inner tube 51 low, thereby liquefying the vapor near the side wall of the inner pipe 51, and the liquefied vapor drops into the outer sleeve 54 along the dropping port and flows out of the condensation pipe 5 along the second discharge pipe 542. The non-liquefied gas overflows the inner pipe 51 along the dropping hole and fills the outer sleeve 54, and after contacting the outer side wall of the outer sleeve 54, the steam is further liquefied and flows out of the condensation pipe 5 along the second discharge pipe 542. In this way, it helps to increase the efficiency of evaporation and the rate of condensation of the liquid, and helps to increase the efficiency of operation of the wiped film flash evaporator, thereby helping to reduce the time required to concentrate the material.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a wiped film flash evaporation appearance which characterized in that: comprises a frame (1), an evaporating pipe (2) is arranged in the frame (1), the evaporating pipe (2) is vertically arranged, an inlet pipe (25) is communicated with the upper side of the evaporating pipe (2), a discharge pipe (26) is communicated with the lower side of the evaporating pipe (2), a heating device (23) for heating the outer side wall of the evaporating pipe (2) is further arranged on the frame (1), a rotating shaft (211) is arranged in the evaporating pipe (2), the rotating shaft (211) is vertically arranged, the rotating shaft (211) and the evaporating pipe (2) are coaxially arranged, a film scraping plate (212) is arranged on one side of the radial direction of the rotating shaft (211), the film scraping plate (212) is vertically arranged, the film scraping plate (212) is fixedly connected with the rotating shaft (211) along one side of the film scraping plate (212) deviating from the rotating shaft (211) along the width direction of the film scraping plate, and the inner side wall gap of the evaporating pipe (2) is arranged along one side of the width direction of the film, the utility model discloses a rotary vacuum pump, including pivot (211), evaporating pipe (2), the pivot (211) upper end is provided with and is used for driving pivot (211) around its own axis direction pivoted drive assembly (22), evaporating pipe (2) upside intercommunication is provided with vacuum pump (271), vacuum pump (271) import and evaporating pipe (2) intercommunication.

2. The wiped film flash evaporator of claim 1, wherein: the evaporating pipe (2) is provided with a fixing frame (241) on the lower side, and the rotating shaft (211) penetrates through the fixing frame (241) along the axis direction of the rotating shaft and is rotatably connected with the fixing frame (241).

3. The wiped film flash evaporator of claim 2, wherein: evaporating pipe (2) lower extreme is and opens the setting, evaporating pipe (2) downside is provided with gland seal (24), gland seal (24) upside and the fixed intercommunication of evaporating pipe (2), gland seal (24) downside and the fixed intercommunication of discharging pipe (26), gland seal (24) outside and frame (1) fixed connection, mount (241) and gland seal (24) inside wall fixed connection.

4. The wiped film flash evaporator of claim 1, wherein: the rack (1) is provided with a fixing component (4) for fixing the condensing pipe (5).

5. The wiped film flash evaporator of claim 4, wherein: fixed subassembly (4) include mounting panel (41), mounting panel (41) are the level setting, be provided with third arc surface (411) on mounting panel (41), condenser pipe (5) lateral wall supports tightly on third arc surface (411), be provided with soft piece (42) on mounting panel (41), soft piece (42) are vertical setting, soft piece (42) parcel is on condenser pipe (5) deviates from the lateral wall of third arc surface (411), soft piece (42) length direction's both sides respectively with mounting panel (41) fixed connection.

6. The wiped film flash evaporator of claim 1, wherein: still be provided with condenser pipe (5) on frame (1), condenser pipe (5) upside and vacuum pump (271) export intercommunication.

7. The wiped film flash evaporator of claim 1, wherein: be provided with back flow (28) on frame (1), back flow (28) one end and evaporating pipe (2) upside intercommunication, frame (1) is stretched out to the one end that back flow (28) deviate from evaporating pipe (2), one side that back flow (28) stretch out frame (1) is provided with the suction pump.

8. The wiped film flash evaporator of claim 1, wherein: the driving assembly (22) is a driving motor (221), an output shaft of the driving motor (221) is coaxially fixed with a rotating shaft (211), one side of the radial direction of the evaporating pipe (2) is provided with a linkage shaft (237), the linkage shaft (237) is vertically arranged, belt pulleys (235) are coaxially fixed on the rotating shaft (211) and the linkage shaft (237), a belt (236) is arranged on the belt pulleys (235), the belt pulleys (235) are in transmission connection through the belt (236), the heating device (23) comprises a heating sleeve (231), the heating sleeve (231) is sleeved on the evaporating pipe (2), the inner side wall of the heating sleeve (231) is abutted against the outer side wall of the evaporating pipe (2), the heating sleeve (231) is rotatably connected with the evaporating pipe (2) in the axial direction of the evaporating pipe (2), and a transmission gear (238) is coaxially fixed on the linkage shaft (237), the heating sleeve (231) comprises a driven gear (232), and the driving gear (238) is meshed with the driven gear (232).

9. The wiped film flash evaporator of claim 8, wherein: the inner side of the heating sleeve (231) is provided with a positioning groove (233) from inside to outside along the radial direction of the heating sleeve, a PCT heating plate (234) is arranged in the heating sleeve (231), the PCT heating plate (234) is fixed in the positioning groove (233), and the PCT heating plate (234) is arranged corresponding to the film scraping plate (212).

10. The wiped film flash evaporator of claim 1, wherein: PCT heating pipes are arranged in the rotating shaft (211).