CN212039059U

CN212039059U - Multiple-effect falling film evaporator

Info

Publication number: CN212039059U
Application number: CN201922314278.7U
Authority: CN
Inventors: 陈先福
Original assignee: Shanghai Yaocheng Light Industry Machinery Co ltd
Current assignee: Shanghai Yaocheng Light Industry Machinery Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-12-01
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a multiple-effect falling film evaporator, which comprises a housing, the upper end surface mounting of casing has the feeding casing, the upper end surface mounting of feeding casing has the inlet pipe, the right-hand member surface of feeding casing is provided with hydrothermal solution outlet pipe way, the internally mounted of casing has the heat exchange tube, the lower extreme surface mounting of casing has the low tube cylinder, the left end surface mounting of low tube cylinder has hydrothermal solution inlet pipe. This evaporimeter can be with hydrothermal solution medium granulation one-tenth hot liquid film, effectively realizes carrying out the efficient evaporation to the moisture in the feed liquid, multiplicable supplied materials liquid transport time in the casing for the moisture in the feed liquid flows the in-process and is heated the vaporization by hot liquid film, makes vapour-liquid fully separate, can be effectively with the even every heat exchange tube that distributes of feed liquid, improves the film forming effect of feed liquid in the heat exchange tube, has the advantage that heat exchange efficiency is high and liquid circulation volume is low.

Description

Multiple-effect falling film evaporator

Technical Field

The utility model relates to a falling film evaporation technical field specifically is a multiple-effect falling film evaporator.

Background

The falling film evaporation is that the feed liquid is added from an upper pipe box of a heating chamber of the falling film evaporator, is uniformly distributed into each heat exchange pipe through a liquid distribution and film forming device, and flows from top to bottom in a uniform film shape under the action of gravity, vacuum induction and airflow; the steam and the liquid phase enter a separation chamber of the evaporator together, the steam and the liquid are fully separated, the steam enters a condenser for condensation or enters a next-effect evaporator as a heating medium, so that the multi-effect operation is realized, and the liquid phase is discharged from the separation chamber;

most of falling-film evaporators in the market can not granulate a hot liquid medium into a hot liquid film, can not realize high-efficiency evaporation of water in a feed liquid, have short conveying time of the feed liquid in a shell, reduce the falling-film evaporation efficiency of the feed liquid, can not effectively heat and vaporize the water in the feed liquid by the hot liquid film, can not realize sufficient separation of vapor and liquid, can not uniformly distribute the feed liquid in each heat exchange tube, and have the problems of poor film forming effect of the feed liquid in the heat exchange tubes, low heat exchange efficiency and high liquid circulation amount.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multiple-effect falling film evaporator, with solve the problem that the falling film evaporator on the market that proposes in the above-mentioned background art can not be with hydrothermal solution medium miniaturation one-tenth hot liquid film, can't realize the high-efficient evaporation to moisture in the feed liquid, the transport time of feed liquid in the casing is shorter, reduce the falling film evaporation efficiency of feed liquid, moisture in the feed liquid can not effectively be vaporized by hydrothermal solution film heating, can't realize the vapour-liquid and separate fully, the unable even distribution of feed liquid is to every heat exchange tube, the film forming effect of feed liquid in the heat exchange tube is poor, heat exchange efficiency is low and the liquid circulation volume is high.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-effect falling-film evaporator comprises a shell, wherein a feeding shell is mounted on the surface of the upper end of the shell, a feeding pipe is mounted on the surface of the upper end of the feeding shell, a hot liquid outlet pipeline is arranged on the surface of the right end of the feeding shell, a heat exchange pipe is mounted inside the shell, a lower pipe cylinder is mounted on the surface of the lower end of the shell, a hot liquid inlet pipeline is mounted on the surface of the left end of the lower pipe cylinder, a lower bucket column is mounted on the surface of the lower end of the lower bucket column, a discharging pipe is mounted on the surface of the lower end of the lower bucket column, a feeding chamber is arranged near the upper end inside the feeding shell, a conveying pipe is mounted at the lower end of the feeding chamber, a liquid distribution chamber is arranged on the surface of the lower end of the conveying pipe, a liquid distribution chamber is arranged on the, the feeding device comprises a feeding shell and is characterized in that an air containing cavity is arranged inside the feeding shell, a water closing collar is arranged on the surface of the lower end of the feeding cavity, and an exploring pipeline is arranged on the surface, close to the right side, of the upper end of the feeding shell.

Preferably, a plurality of groups of heat exchange tubes and a casing are fixedly arranged, an annular heat pipe clamping plate is arranged in the casing, the heat exchange tubes and the annular heat pipe clamping plate are vertically arranged, and the radius of each heat exchange tube is 100 mm.

Preferably, the upper end of the feeding shell is provided with a threaded hole, the feeding pipe is in bolted connection with the feeding shell through the threaded hole, the upper end of the feeding pipe is provided with a feeding hole, and the built-in bile duct and the water-closing shaft collar are arranged in a tangent mode.

Preferably, the feed delivery pipe is fixedly installed with the feed chamber through a water-closing shaft collar, the left liquid distribution chamber and the right liquid distribution chamber are symmetrically arranged relative to the feed pipe, and the transverse support rod is vertically arranged with the feed chamber.

Preferably, the left liquid distribution chamber and the right liquid distribution chamber are both semi-circular rings, the three groups of built-in bile ducts are arranged with the left liquid distribution chamber in a penetrating manner, the radius of the built-in bile ducts is 50mm, and steam dense holes are formed in the surface of the feeding chamber.

Preferably, the conveying pipe and the liquid distribution chamber are arranged in a penetrating mode, a spiral material pipe is arranged inside the conveying pipe, filtrate holes are formed in the left surface of the liquid distribution chamber and the right surface of the liquid distribution chamber, and the left surface of the liquid distribution chamber and the right surface of the liquid distribution chamber are communicated with the air containing cavity through the filtrate holes.

Compared with the prior art, the beneficial effects of the utility model are that: the evaporator is provided with an air containing cavity and a filtrate hole, the left side of the liquid distribution chamber and the right side of the liquid distribution chamber are communicated with the air containing cavity through the filtrate hole, a heated hydrothermal medium enters a built-in bile duct in a heat exchange tube from a hydrothermal inlet pipeline, and the hydrothermal medium is granulated into a hydrothermal film through the built-in bile duct with the radius of 50mm in the process of being discharged from a hydrothermal outlet pipeline through the filtrate hole and the air containing cavity, so that the water in the feed liquid is effectively evaporated efficiently; the spiral material pipe is used for conveying the material liquid, so that the conveying time of the material liquid in the shell can be prolonged, the water in the material liquid is heated and vaporized by the hydrothermal film in the flowing process, and the vapor and the liquid are fully separated;

the feed chamber, cloth liquid room left side and cloth liquid room right side that this evaporimeter set up, with the feed liquid by the feed pipe defeated send into the feed chamber in the feeding casing, respectively with the feed liquid by the even distribution of feed chamber to three conveying pipeline in, carry out a lot of by cloth liquid room left side and cloth liquid room right side to the feed liquid and distribute, can be effectively with the even distribution of feed liquid to every heat exchange tube in, improve the film forming effect of feed liquid in the heat exchange tube, have the advantage that heat exchange efficiency is high and liquid circulation volume is low.

Drawings

FIG. 1 is a schematic view of the structure of the housing of the present invention;

FIG. 2 is a schematic view of the feeding shell structure of the present invention;

fig. 3 is a schematic view of the structure of the built-in bile duct of the present invention.

In the figure: 1. a housing; 2. a feed housing; 3. a feed pipe; 4. a hot liquid outlet pipe; 5. a heat exchange pipe; 6. A lower tubular column; 7. hot liquid enters the pipeline; 8. a bucket column is arranged; 9. a discharge pipe; 10. a feed chamber; 11. a delivery pipe; 12. the cloth liquid chamber is arranged on the left side; 13. the cloth liquid chamber is right; 14. a transverse stay bar; 15. a bile duct is arranged inside; 16. an air containing cavity; 17. a water-blocking collar; 18. the pipeline is probed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a multi-effect falling-film evaporator comprises a shell 1, a feeding shell 2, a feeding pipe 3, a hot liquid outlet pipeline 4, a heat exchange pipe 5, a lower pipe column 6, a hot liquid inlet pipeline 7, a lower bucket column 8, a discharging pipe 9, a feeding chamber 10, a feeding pipe 11, a liquid distribution chamber left 12, a liquid distribution chamber right 13, a transverse supporting rod 14, a built-in bile duct 15, a gas containing cavity 16, a water closing shaft collar 17 and an exploration pipeline 18, wherein the feeding shell 2 is installed on the upper end surface of the shell 1, the feeding pipe 3 is installed on the upper end surface of the feeding shell 2, the hot liquid outlet pipeline 4 is arranged on the right end surface of the feeding shell 2, a threaded hole is formed in the upper end of the feeding shell 2, the feeding pipe 3 is in bolted connection with the feeding shell 2 through the threaded hole, a feeding hole is formed in the upper, the feeding shell 2 and the feeding pipe 3 are connected more tightly through the threaded hole formed in the upper end of the feeding shell 2;

the heat exchange tube 5 is arranged in the casing 1, the lower end surface of the casing 1 is provided with a lower tube column 6, the left end surface of the lower tube column 6 is provided with a hot liquid inlet pipeline 7, the lower end surface of the lower tube column 6 is provided with a lower bucket column 8, the lower end surface of the lower bucket column 8 is provided with a discharge tube 9, the inner part of the feeding casing 2 close to the upper end is provided with a feeding chamber 10, a plurality of groups of heat exchange tubes 5 are fixedly arranged with the casing 1, the casing 1 is internally provided with an annular heat tube clamping plate, the heat exchange tubes 5 and the annular heat tube clamping plate are vertically arranged, the radius of the heat exchange tubes 5 is 100mm, and a built-in bile duct 15 can be arranged in the heat exchange tubes 5 in a penetrating manner, so that a feed liquid is wrapped around the built-in bile duct 15 for conveying;

the feeding pipe 11 is arranged at the lower end of the feeding chamber 10, the lower end surface of the feeding pipe 11 is provided with a left liquid distribution chamber 12, the right end of the left liquid distribution chamber 12 is provided with a right liquid distribution chamber 13, the left end surface of the feeding chamber 10 is provided with a transverse stay bar 14, the heat exchange pipe 5 is internally provided with a built-in bile duct 15, the feeding shell 2 is internally provided with an air accommodating cavity 16, the lower end surface of the feeding chamber 10 is provided with a water-closing collar 17, the upper end surface of the feeding shell 2 is provided with an exploring pipeline 18 close to the right side, the feeding pipe 11 is fixedly arranged with the feeding chamber 10 through the water-closing collar 17, the left liquid distribution chamber 12 and the right liquid distribution chamber 13 are symmetrically arranged relative to the feeding pipe 3, the transverse stay bar 14 and the feeding chamber 10 are vertically arranged, the left liquid distribution chamber 12 and the right liquid distribution chamber 13 are both in a semi-circular ring shape, the three groups of built, the liquid distribution chamber is characterized in that a conveying pipe 11 and a liquid distribution chamber right 13 are arranged in a penetrating manner, a spiral material pipe is arranged in the conveying pipe 11, filtrate holes are formed in the surfaces of a liquid distribution chamber left 12 and a liquid distribution chamber right 13, the liquid distribution chamber left 12 and the liquid distribution chamber right 13 are communicated with an air containing cavity 16 through the filtrate holes, a hydrothermal medium is effectively granulated into a hydrothermal liquid film through a built-in bile duct 15 with the radius of 50mm, and the efficient evaporation of water in the liquid material is effectively realized; the spiral material pipe can be used for conveying the material liquid, so that the conveying time of the material liquid in the shell 1 can be prolonged, and the water in the material liquid is heated and vaporized by the hydrothermal liquid film in the flowing process.

The working principle is as follows: for the evaporator, firstly, heated hydrothermal medium is conveyed into each built-in bile duct 15 through a hydrothermal inlet pipeline 7 on the surface of the left end of a lower pipe column 6, wherein heat exchange pipes 5 are fixedly arranged in a shell 1 by a circular ring-shaped support partition plate, as an air containing cavity 16 and filtrate holes are arranged in a feeding shell 2, a left liquid distribution chamber 12 and a right liquid distribution chamber 13 are communicated with the air containing cavity 16 through the filtrate holes, the heated hydrothermal medium enters the built-in bile ducts 15 in the heat exchange pipes 5 through the hydrothermal inlet pipeline 7, and then the hydrothermal medium is effectively granulated into a hydrothermal solution through the built-in bile ducts 15 with the radius of 50mm in the process of being discharged from a hydrothermal solution outlet pipeline 4 through the air containing cavity 16 through the filtrate holes, so that the water in the hydrothermal solution is effectively evaporated; the spiral material pipe is used for conveying the material liquid, so that the conveying time of the material liquid in the shell 1 can be prolonged, the water in the material liquid is heated and vaporized by the hydrothermal liquid film in the flowing process, and the vapor and the liquid are fully separated; a feeding chamber 10, a liquid distribution chamber left 12 and a liquid distribution chamber right 13 arranged in the feeding shell 2, wherein the feeding chamber 10 in the feeding shell 2 is used for conveying liquid into the feeding chamber 10, the liquid is uniformly distributed into three conveying pipes 11 from the feeding chamber 10 respectively, and then the liquid is distributed for a plurality of times from the liquid distribution chamber left 12 and the liquid distribution chamber right 13, so that the liquid can be effectively and uniformly distributed into each heat exchange pipe 5, the film forming effect of the liquid in the heat exchange pipes 5 is improved, the heat exchange efficiency is high, the liquid circulation quantity is low, wherein the water-closing ring collar 17 can effectively prevent the liquid from overflowing from the feeding chamber 10 to avoid the leakage of the liquid, the arrangement of the transverse brace 14 can effectively avoid the shaking of the liquid when the liquid is conveyed into the feeding chamber 10 to ensure the normal operation of the feeding shell 2, and finally, the liquid which is fully separated from vapor and liquid is conveyed out of the lower bucket column 8 through the discharging pipe 9, the multi-effect falling film evaporation effect on the feed liquid is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multiple effect falling film evaporator comprising a shell (1), characterized in that: the upper end surface mounting of casing (1) has feeding casing (2), the upper end surface mounting of feeding casing (2) has inlet pipe (3), the right-hand member surface of feeding casing (2) is provided with hydrothermal solution outlet pipe way (4), the internally mounted of casing (1) has heat exchange tube (5), the lower extreme surface mounting of casing (1) has lower tube cylinder (6), the left end surface mounting of lower tube cylinder (6) has hydrothermal solution inlet pipe way (7), the lower extreme surface mounting of lower tube cylinder (6) has lower fill post (8), the lower extreme surface mounting of lower fill post (8) has discharging pipe (9), the inside of feeding casing (2) is close to the upper end and is provided with feed space (10), feed delivery pipe (11) is installed to the lower extreme of feed space (10), the lower extreme surface mounting of feed delivery pipe (11) is provided with cloth liquid chamber left (12), the right end of the left end (12) of the liquid distribution chamber is provided with a right end (13) of the liquid distribution chamber, the left end surface of the feeding chamber (10) is provided with a transverse supporting rod (14), the inside of the heat exchange tube (5) is provided with a built-in bile duct (15), the inside of the feeding shell (2) is provided with an air accommodating cavity (16), the lower end surface of the feeding chamber (10) is provided with a water closing collar (17), and the upper end surface of the feeding shell (2) is provided with an exploring pipeline (18) close to the right side.

2. A multi-effect falling film evaporator according to claim 1 wherein: the heat exchange tubes (5) are fixedly arranged with the casing (1), an annular heat tube clamping plate is arranged in the casing (1), the heat exchange tubes (5) are vertically arranged with the annular heat tube clamping plate, and the radius of the heat exchange tubes (5) is 100 mm.

3. A multi-effect falling film evaporator according to claim 1 wherein: the upper end of the feeding shell (2) is provided with a threaded hole, the feeding pipe (3) is in bolted connection with the feeding shell (2) through the threaded hole, the upper end of the feeding pipe (3) is provided with a feeding hole, and the built-in bile duct (15) and the water-closing shaft collar (17) are arranged in a tangent mode.

4. A multi-effect falling film evaporator according to claim 1 wherein: the feeding pipe (11) is fixedly installed with the feeding chamber (10) through a water closing shaft collar (17), the left side (12) of the liquid distribution chamber and the right side (13) of the liquid distribution chamber are symmetrically arranged relative to the feeding pipe (3), and the transverse supporting rod (14) and the feeding chamber (10) are vertically arranged.

5. A multi-effect falling film evaporator according to claim 1 wherein: the left liquid distribution chamber (12) and the right liquid distribution chamber (13) are both semi-circular rings, three groups of built-in bile ducts (15) are arranged in a penetrating manner with the left liquid distribution chamber (12), the radius of the built-in bile ducts (15) is 50mm, and steam dense holes are formed in the surface of the feeding chamber (10).

6. A multi-effect falling film evaporator according to claim 1 wherein: conveying pipeline (11) and cloth liquid room right side (13) run through the setting, and conveying pipeline (11) inside is provided with the spiral material pipe, and cloth liquid room left side (12) and cloth liquid room right side (13) surface have all been seted up the filtrate hole, and cloth liquid room left side (12) and cloth liquid room right side (13) are led to the filtrate hole and are link up with air containing cavity (16) mutually.