CN210384877U

CN210384877U - Combined film evaporator

Info

Publication number: CN210384877U
Application number: CN201920936939.7U
Authority: CN
Inventors: 潘万贵; 林海波
Original assignee: Taizhou Vocational and Technical College
Current assignee: ZHEJIANG CHENGXIN PHARM & CHEM EQUIPMENT Co.,Ltd.
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-04-24
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a modular film evaporator, including heat transfer shell and thermal-insulated shell, be provided with intake pipe and condensate drain pipe on the heat transfer shell, be provided with inlet pipe and steam discharge pipe on the thermal-insulated shell, the one end intercommunication of steam discharge pipe has the cooling tube, the lower part welded fastening of heat transfer shell upper portion and thermal-insulated shell, thermal-insulated shell has the motor through support fixed mounting, the key joint connecting rod in the axis of rotation of motor, welded fastening has scraper blade and scale removal board respectively on the connecting rod, the one end welding of connecting rod has the defeated stub bar of spiral, the connecting rod cup joints respectively and is fixed with baffle and the mechanism that gathers materials, be provided with the cavity in the heat transfer shell. The utility model discloses can clear up the material of adhesion on evaporation plant's the inner wall, avoid the adhesion thing to pile up on evaporation plant's inner wall for a long time, be difficult for clearing up to can carry out the heat transfer to steam in the steam of row, reduce steam temperature, improve the efficiency of separation process.

Description

Combined film evaporator

Technical Field

The utility model belongs to the technical field of the film evaporator, concretely relates to modular film evaporator.

Background

Combined thin film evaporators, evaporation is the unit operation of heating a solution containing a non-volatile solute to boiling conditions, causing a portion of the solvent to vaporize and be removed, thereby increasing the concentration of solute in the solvent. There are several occasions of evaporation operation in industrial production: 1. concentrating the dilute solution to obtain the product directly or further treating the concentrated solution (such as cooling and crystallizing) to obtain solid product, such as concentration of electrolytic caustic soda solution, concentration of sugar water solution and concentration of various fruit juices. 2. Concentrating the solution and recovering solvent, such as concentrating benzene-removing solution of organophosphorus pesticide, evaporating alcohol leachate in Chinese medicine production, etc. 3. To obtain a pure solvent, e.g. desalination of sea water, etc.

When using, the existing combined evaporator is contacted and then evaporated by the inner walls of the materials and the evaporator, the solvent is purified, the materials which are different from each other can be adhered to the inner walls of the evaporator after evaporation, and are easy to accumulate and difficult to clear, the evaporation efficiency of the evaporator is easy to influence due to long-time accumulation, and the existing combined evaporator cannot pre-dissipate the discharged steam, so that the efficiency of the next step is not improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular film evaporator can clear up the material of adhesion on evaporation plant's the inner wall, avoids the adhesion to pile up on evaporation plant's inner wall for a long time, and is difficult for clearing up to can carry out the heat transfer to steam in the steam-discharging, reduce steam temperature, improve the efficiency of separation process, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a modular film evaporator, includes heat transfer shell and thermal-insulated shell, be provided with intake pipe and condensation drain pipe on the heat transfer shell, be provided with inlet pipe and steam discharge pipe on the thermal-insulated shell, the one end intercommunication of steam discharge pipe has the cooling tube, heat transfer shell upper portion and thermal-insulated shell's lower part welded fastening, thermal-insulated shell has the motor through support fixed mounting, the motor runs through in thermal-insulated shell through sealed bearing, the key joint connecting rod in the axis of rotation of motor, welded fastening has scraper blade and scale removal board on the connecting rod respectively, the one end welding of connecting rod has spiral delivery head, the connecting rod cup joints respectively and is fixed with baffle and the mechanism of gathering materials, the connecting rod is located the inside of heat transfer shell, be provided with the cavity in the heat transfer shell, the cavity is linked together with.

Preferably, the mechanism that gathers materials includes the silo that gathers materials, baffle and through-hole, the below that is located the inlet pipe in the silo that gathers materials, the through-hole is seted up on the silo that gathers materials, the baffle is the annular setting, the through-hole is located the baffle, the silo that gathers materials is fixed to be cup jointed on the connecting rod.

Preferably, the feed pipe is disposed at an opposite side of the steam discharge pipe, the feed pipe being located below the steam discharge pipe.

Preferably, the cooling pipe is arranged in an S shape, and the cooling pipe is fixedly welded with the radiating fins.

Preferably, the side part of the scraper is in clearance fit with the inner wall of the heat exchange shell, the clearance is not more than 1mm, and the side part of the descaling plate is attached to the inner wall of the heat exchange shell.

Preferably, the bottom of the heat exchange shell is arranged in a conical manner, a discharge pipe is arranged at the bottom of the heat exchange shell, and the spiral material conveying head is located right above the discharge pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the use of the descaling plate, the adhered materials can be removed after the materials are evaporated, so that the long-time accumulation of the adhesion can be prevented, and the evaporation efficiency of the heat exchange shell is prevented from being influenced;

2. through the use of cooling tube, can cool off the steam that produces in the heat transfer shell, reduce the required time of process on next step, can improve work efficiency.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the heat exchange shell of the present invention;

fig. 3 is a top view of the material collecting mechanism of the present invention.

In the figure: 1. a heat exchange shell; 2. a thermally insulating shell; 3. an air inlet pipe; 4. a condensation liquid outlet pipe; 5. a feed pipe; 6. a steam discharge pipe; 7. a cooling tube; 8. a motor; 9. sealing the bearing; 10. a connecting rod; 11. a squeegee; 12. a descaling plate; 13. a screw conveying head; 14. a baffle plate; 15. a material collecting mechanism; 16. a cavity; 17. a material collecting groove; 18. a partition plate; 19. a through hole; 20. a heat sink; 21. and (4) discharging the pipe.

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 combined film evaporator comprises a heat exchange shell 1 and a heat insulation shell 2, wherein an air inlet pipe 3 and a condensate outlet pipe 4 are arranged on the heat exchange shell 1, a feed pipe 5 and a steam discharge pipe 6 are arranged on the heat insulation shell 2, one end of the steam discharge pipe 6 is communicated with a cooling pipe 7, the upper part of the heat exchange shell 1 is welded and fixed with the lower part of the heat insulation shell 2, the heat insulation shell 2 is fixedly provided with a motor 8 through a support, the motor 8 penetrates through the heat insulation shell 2 through a sealing bearing 9, a connecting rod 10 is connected on a rotating shaft of the motor 8 in a key way, a scraper 11 and a descaling plate 12 are respectively welded and fixed on the connecting rod 10, the scraper 11 is used for paving materials flowing down along the inner wall of the heat exchange shell 1 into film-shaped fluid, the descaling plate 12 is used for removing the materials adhered on the inner wall of the heat exchange shell 1, and one, the connecting rod 10 is fixedly provided with a baffle 14 and a material collecting mechanism 15 in a sleeved mode respectively, the connecting rod 10 is located inside the heat exchange shell 1, a cavity 16 is arranged in the heat exchange shell 1, and the cavity 16 is communicated with the air inlet pipe 3 and the condensation liquid outlet pipe 4.

Further, the mechanism 15 that gathers materials includes material collecting tank 17, baffle 18 and through-hole 19, material collecting tank 17's the below that is located inlet pipe 5, through-hole 19 is seted up on material collecting tank 17, baffle 18 is the annular setting, through-hole 19 is located baffle 18, material collecting tank 17 fixes the cup joint on connecting rod 10, can send the material that the inlet pipe sent to the inner wall of heat transfer shell on, prevent that the material from splashing.

Further, the feed pipe 5 is provided at the opposite side of the steam discharge pipe 6, and the feed pipe 5 is located below the steam discharge pipe 6 to facilitate discharge of the evaporated gas.

Furthermore, the cooling pipe 7 is arranged in an S shape, and the cooling fins 20 are welded and fixed on the cooling pipe 7, so that the heat dissipation effect can be improved, and the efficiency of the separation process can be improved.

Further, the lateral part of scraper blade 11 and the inner wall clearance fit of heat transfer shell 1, and the clearance is not more than 1mm, the lateral part of scale removal board 12 is connected with the inner wall laminating of heat transfer shell 1, can spread the material on the inner wall of heat transfer shell 1 evenly, will adhere to the material on the inner wall of heat transfer shell 1 after the evaporation and get rid of.

Further, the bottom of heat exchange shell 1 is the toper setting, the bottom of heat exchange shell 1 is provided with discharging pipe 21, spiral material conveying head 13 is located discharging pipe 21 directly over, can prevent to block up discharging pipe 21.

The structure principle is as follows: when using, let in hot steam from intake pipe 3, make heat transfer shell 1 intensifies, open motor 8 then from the material inlet pipe 5 material loading, make the material get into aggregate mechanism 15, then send the material to the inner wall of heat transfer shell 1 through the rotation of aggregate mechanism 15 on, then the material flows down, evenly pave the material through scraper blade 11 and evaporate on the inner wall of heat transfer shell 1, then scale removal plate 12 scrapes the adhesion and fails the downward mobile material on heat transfer shell 1 inner wall again, the evaporation residual material is discharged from discharging pipe 21, the gas that the evaporation produced is discharged from steam discharge pipe 6 and is got into cooling tube 7 cooling, get into process on next step.

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 combined thin film evaporator comprises a heat exchange shell (1) and a heat insulation shell (2), and is characterized in that: the heat exchange shell is characterized in that an air inlet pipe (3) and a condensation liquid outlet pipe (4) are arranged on the heat exchange shell (1), an inlet pipe (5) and a steam discharge pipe (6) are arranged on the heat insulation shell (2), one end of the steam discharge pipe (6) is communicated with a cooling pipe (7), the upper portion of the heat exchange shell (1) is welded and fixed with the lower portion of the heat insulation shell (2), a motor (8) is fixedly installed on the heat insulation shell (2) through a support, the motor (8) penetrates through the heat insulation shell (2) through a sealing bearing (9), a connecting rod (10) is connected with a rotating shaft of the motor (8) in a key mode, a scraper (11) and a descaling plate (12) are respectively welded and fixed on the connecting rod (10), a spiral material conveying head (13) is welded at one end of the connecting rod (10), a baffle plate (14) and a material collecting mechanism (15) are respectively sleeved and fixed on the connecting rod, a cavity (16) is arranged in the heat exchange shell (1), and the cavity (16) is communicated with the air inlet pipe (3) and the condensation liquid outlet pipe (4).

2. A combined thin film evaporator according to claim 1 in which: gather materials mechanism (15) including gathering material groove (17), baffle (18) and through-hole (19), the below that is located inlet pipe (5) of gathering material groove (17), through-hole (19) are seted up on gathering material groove (17), baffle (18) are the annular and set up, through-hole (19) are located baffle (18), gather material groove (17) and fixedly cup joint on connecting rod (10).

3. A combined thin film evaporator according to claim 1 in which: the feeding pipe (5) is arranged at the opposite side of the steam discharge pipe (6), and the feeding pipe (5) is positioned below the steam discharge pipe (6).

4. A combined thin film evaporator according to claim 1 in which: the cooling pipe (7) is arranged in an S shape, and the cooling pipe (7) is fixedly welded with a cooling fin (20).

5. A combined thin film evaporator according to claim 1 in which: the lateral part of scraper blade (11) and the inner wall clearance fit of heat transfer shell (1), and the clearance is not more than 1mm, the lateral part of scale removal board (12) is connected with the inner wall laminating of heat transfer shell (1).

6. A combined thin film evaporator according to claim 1 in which: the bottom of heat transfer shell (1) is the toper setting, the bottom of heat transfer shell (1) is provided with discharging pipe (21), spiral material conveying head (13) are located discharging pipe (21) directly over.