Film evaporator with residue self-cleaning structure

Abstract

The utility model relates to the technical field of film evaporator cleaning, and particularly discloses a film evaporator with a residue self-cleaning structure. Comprising an evaporator shell, the evaporator shell comprises a feeding end, a reaction end and a discharging end, a feeding port and an exhaust port are formed in the feeding end, and a discharging port is formed in the discharging end; the frequency modulation motor is installed on the evaporator shell, and an output shaft of the frequency modulation motor is connected with the transmission shaft; the scraper mechanism comprises a connecting plate, a spring and a scraper, the connecting plate is connected with the transmission shaft, one end of the spring is connected with the connecting plate, the other end of the spring is connected with the scraper, and the scraper is slidably connected with the connecting plate. The extension distance of the scraper can be adjusted under the action of centrifugal force, and the centrifugal force can be adjusted by the frequency modulation motor, so that residues of the film evaporator can be automatically cleaned, the evaporation efficiency can be actively regulated and controlled, the complexity of manual cleaning is avoided, and the evaporation efficiency can be adjusted as required.

Description

Technical Field

[0001] The utility model relates to the field of thin film evaporator cleaning, in particular to a thin film evaporator with a residue self-cleaning structure. Background Art

[0002] Thin film evaporator is a highly efficient evaporation and concentration equipment, which is widely used in chemical, petroleum, pharmaceutical, food and other industries. Its working principle is mainly to disperse the liquid into a uniform film through the rotating scraper, so as to accelerate the evaporation process of the material, thereby achieving the purpose of concentration and separation.

[0003] In the prior art, thin film evaporators are usually cleaned manually on their inner walls, and the evaporation efficiency of thin film evaporators is usually adjusted by increasing the evaporation temperature. However, the evaporation of materials has a specific temperature range, and when the temperature is higher than the specific temperature, the effect will be destroyed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a thin film evaporator with a residue self-cleaning structure to overcome the defects of the prior art that the inner wall of the thin film evaporator is cleaned manually and the evaporation efficiency cannot be adjusted stably, safely and effectively.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides a thin film evaporator with a residue self-cleaning structure, comprising:

[0008] An evaporator shell, the evaporator shell comprising a feed end, a reaction end and a discharge end, the feed end, the reaction end and the discharge end are connected in sequence, the feed end is provided with a feed inlet and an exhaust port, and the discharge end is provided with a discharge port;

[0009] A frequency-modulated motor, wherein the frequency-modulated motor is mounted on the evaporator housing, and an output shaft of the frequency-modulated motor is connected to a transmission shaft;

[0010] The scraper mechanism comprises a connecting plate, a spring and a scraper, wherein the connecting plate is connected to the transmission shaft, one end of the spring is connected to the connecting plate, the other end of the spring is connected to the scraper, and the scraper is slidably connected to the connecting plate.

[0011] As for the thin film evaporator as described above, optionally, the transmission shaft is coaxial with the reaction end, the connecting plate is concave, and one end of the spring and the scraper are arranged in the concave structure of the connecting plate.

[0012] As the thin film evaporator mentioned above, optionally, there are three scraper mechanisms, and the three scraper mechanisms are distributed in a circular array around the transmission shaft.

[0013] As mentioned above, the thin film evaporator may optionally include a motor protection shell, the frequency modulated motor is located in the motor protection shell, and the material of the motor protection shell is a sound insulation material.

[0014] As mentioned above, the thin film evaporator may optionally include a control console, and the control console is connected to the frequency-modulated motor.

[0015] As for the thin film evaporator as mentioned above, optionally, the discharge port is connected to a discharge pipe, the discharge pipe is provided with a control valve, and the control valve is connected to the control console.

[0016] As the thin film evaporator mentioned above, optionally, the thin film evaporator includes a distributor, and the distributor is arranged between the feed end and the reaction end.

[0017] As the thin film evaporator mentioned above, optionally, the thin film evaporator comprises a jacket, and the jacket is arranged on the reaction end.

[0018] (III) Beneficial effects

[0019] The utility model provides a thin film evaporator with a residue self-cleaning structure, wherein a scraper mechanism and a frequency modulation motor are provided in the thin film evaporator, wherein the scraper mechanism comprises a connecting plate, a spring and a scraper, wherein a transmission shaft is connected to the output shaft of the frequency modulation motor, and the transmission shaft is connected to the connecting plate, wherein the scraper mechanism can generate centrifugal force during rotation, wherein the magnitude of the centrifugal force can be varied by adjusting the output frequency of the frequency modulation motor, and wherein the distance between the scraper and the inner wall of the thin film evaporator can be varied by changing the centrifugal force, wherein when the distance is closely fitted, the residue on the inner wall can be cleaned, thereby replacing the manual cleaning of the residue in the prior art. At the same time, the mold thickness can be varied by adjusting the distance between the scraper and the inner wall of the thin film evaporator, thereby changing the evaporation efficiency and adapting to the evaporation of different liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a three-dimensional diagram of a thin film evaporator with a residue self-cleaning structure according to the utility model;

[0022] Figure 2It is a cross-sectional view of a top view of a thin film evaporator with a residue self-cleaning structure according to the utility model;

[0023] Figure 3 It is a cross-sectional view of a side view of a thin film evaporator with a residue self-cleaning structure according to the utility model.

[0024] The names of the components corresponding to the various figure marks in the figure are: 1. Evaporator shell; 11. Feed end; 12. Reaction end; 13. Discharge end; 14. Feed port; 15. Exhaust port; 16. Discharge port; 2. Frequency modulation motor; 3. Scraper mechanism; 31. Connecting plate; 32. Spring; 33. Scraper; 4. Transmission shaft; 5. Motor protection shell; 6. Control console; 7. Discharge pipe; 71. Control valve; 8. Distributor; 9. Jacket. DETAILED DESCRIPTION

[0025] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0027] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0028] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0029] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0030] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0031] See also Figures 1 to 3 The utility model provides a thin film evaporator with a residue self-cleaning structure, which includes an evaporator shell 1, a frequency modulation motor 2, a scraper mechanism 3, a motor protection shell 5, a control console 6, a distributor 8 and a jacket 9.

[0032] exist Figures 1 to 3 In an optional embodiment, the evaporator shell 1 includes a feed end 11, a reaction end 12 and a discharge end 13, and the feed end 11, the reaction end 12 and the discharge end 13 are connected in sequence, and the connection method can be but not limited to welding. It should be noted that a feed port 14 and an exhaust port 15 are provided on the feed end 11, and the material can enter from the feed port 14 and flow into the thin film evaporator. The material reacts in the reaction end 12 and is evaporated. The evaporated material residue can flow out through the discharge end 13.

[0033] exist Figures 1 to 3 In an optional embodiment, the frequency-modulated motor 2 is mounted on the evaporator housing 1 , and the mounting method may be, but is not limited to, bolt fixing. Meanwhile, the output shaft of the frequency-modulated motor 2 is connected to the input end of the transmission shaft 4 .

[0034] Meanwhile, the motor protection shell 5 is arranged on the evaporator housing 1, and the frequency modulation motor 2 is located in the motor protection shell 5, which plays a role in protecting the motor. Furthermore, the motor protection shell 5 is made of sound insulation material, which can effectively prevent the noise of the motor from interfering with the outside world.

[0035] exist Figures 1 to 3 In an optional embodiment, the scraper mechanism 3 includes a connecting plate 31, a spring 32 and a scraper 33. The connecting plate 31 is connected to the output end of the transmission shaft 4, and the transmission shaft 4 can drive the scraper mechanism 3 to rotate by rotating. The spring 32 is connected to the connecting plate 31, the scraper 33 is connected to the spring 32, and the scraper 33 is slidably connected to the connecting plate 31. Specifically, the length of the scraper mechanism 3 does not exceed the length of the reaction end 12.

[0036] It should be noted that the transmission shaft 4 is coaxial with the reaction end 12, so the transmission shaft 4 rotates at the axial position of the reaction end 12. At the same time, there are three scraper mechanisms 3, and the three scraper mechanisms 3 are arranged at equal intervals around the axis of the transmission shaft 4. When the transmission shaft 4 rotates, it can drive the three scraper mechanisms 3 to rotate.

[0037] exist Figures 1 to 3 In an optional embodiment, the control console 6 is used to control the thin film evaporator, and the control console 6 can be set at any suitable position by a person skilled in the art.

[0038] Furthermore, the technicians in this field control the pneumatic frequency-modulated motor 2 through the control console 6, and the frequency-modulated motor 2 rotates. Since the rotation of the frequency-modulated motor 2 can drive the transmission shaft 4 to rotate, the rotation of the transmission shaft 4 can drive the rotation of the three scraper mechanisms 3. While the scraper mechanisms 3 rotate, centrifugal force is generated, and the spring 32 is stretched under the action of the centrifugal force. At the same time, the scraper 33 can slide on the connecting plate 31.

[0039] exist Figures 1 to 3 In an optional embodiment, the thin film evaporator includes a jacket 9, which is arranged on the reaction end 12. The jacket 9 can provide heat for the reaction end 12 of the thin film evaporator, thereby heating the reaction end 12 of the evaporator shell 1, and the temperature of the jacket 9 is adjustable. By adjusting the temperature of the jacket 9, the temperature of the evaporator shell 1 can be made suitable for the evaporation of different materials.

[0040] exist Figures 1 to 3 In an optional embodiment, the thin film evaporator includes a distributor 8, which is arranged between the feed end 11 and the reaction end 12. The material is input into the thin film evaporator from the feed port 14, and there is a gap between the side of the distributor 8 and the inner wall of the evaporator shell 1, and the upper surface of the distributor 8 is higher than the feed port 14, and the lower surface of the distributor 8 is lower than the feed port 14, so the distributor 8 can force the material to flow evenly along the inner wall of the evaporator shell 1. In order to control the flow rate of the liquid, the gap between the lower surface of the distributor 8 and the thin film evaporator body 11 is set to 2 to 3 mm.

[0041] exist Figures 1 to 3 In an optional embodiment, the discharge port 16 is connected to the discharge pipe 7, and the discharge pipe 7 is provided with a control valve 71, which is connected to the control console 6. After the scraper 33 cleans the residue attached to the inner surface of the evaporator shell 1, the residue enters the discharge end 13, and the discharge port 16 of the discharge end 13 is connected to the discharge pipe 7, and the discharge pipe 7 is provided with a control valve 71, which is connected to the control console 6. When the control console 6 outputs a discharge instruction, the control valve 71 is opened, and the residue is discharged from the control valve 71.

[0042] When the frequency-modulated motor 2 reaches a certain speed, the scraper 33 is fully extended. At this time, the scraper 33 is in full contact with the inner wall of the evaporator, and the scraper 33 can clean the residue on the inner wall of the evaporator.

[0043] Furthermore, since different materials require different evaporation temperatures, and the evaporation temperatures of different materials have appropriate defined ranges, the adjustment of different evaporation temperatures can be achieved by adjusting the temperature of the jacket 9 disposed at the reaction end 12 .

[0044] Furthermore, the rotation speed of the scraper 33 mechanism 3 can be adjusted by adjusting the rotation speed of the frequency modulation motor 2, thereby adjusting the centrifugal force of the scraper mechanism 3 during rotation, and the sliding distance of the scraper 33 can be adjusted. Therefore, by adjusting the rotation speed of the frequency modulation motor 2, the distance between the scraper 33 and the inner wall of the evaporator housing 1 can be adjusted, thereby adjusting the thickness of the film and changing the evaporation efficiency of the thin film evaporator.

[0045] The working steps of the thin film evaporator are as follows:

[0046] First, the control console 6 controls the frequency modulation motor 2 to start, and the material is input into the feed port 14 , and then input into the reaction end 12 through the distributor 8 from the feed port 14 .

[0047] Then, the jacket 9 generates heat and transfers the heat to the reaction end 12 of the evaporator shell 1. The scraper 33 rotates under the drive of the frequency modulation motor 2, and the material is attached to the inner wall of the evaporator shell 1 to form a film. By adjusting the speed of the frequency modulation motor 2, the thickness of the film is adjusted to evaporate the material.

[0048] Finally, the evaporated material forms residue, and the frequency modulation motor 2 increases the rotation speed to make the scraper 33 fit the inner wall of the evaporator to clean the residue, and the cleaned residue is discharged through the discharge end 13.

[0049] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0050] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A thin film evaporator with a residue self-cleaning structure, characterized in that: include: An evaporator shell (1), the evaporator shell (1) comprising a feed end (11), a reaction end (12) and a discharge end (13), the feed end (11), the reaction end (12) and the discharge end (13) being connected in sequence, the feed end (11) being provided with a feed port (14) and an exhaust port (15), and the discharge end (13) being provided with a discharge port (16); A frequency-modulated motor (2), the frequency-modulated motor (2) being mounted on the evaporator housing (1), and the output shaft of the frequency-modulated motor (2) being connected to the transmission shaft (4); A scraper mechanism (3), the scraper mechanism (3) comprising a connecting plate (31), a spring (32) and a scraper (33), the connecting plate (31) being connected to the transmission shaft (4), one end of the spring (32) being connected to the connecting plate (31), the other end of the spring (32) being connected to the scraper (33), and the scraper (33) being slidably connected to the connecting plate (31).

2. The thin film evaporator according to claim 1, characterized in that The transmission shaft (4) is coaxial with the reaction end (12); the connecting plate (31) is concave; and one end of the spring (32) and the scraper (33) are arranged in the concave structure of the connecting plate (31).

3. The thin film evaporator according to claim 1, characterized in that There are three scraper mechanisms (3), and the three scraper mechanisms (3) are distributed in a circular array around the transmission shaft (4).

4. The thin film evaporator according to claim 1, characterized in that The thin film evaporator comprises a motor protection shell (5), the frequency modulation motor (2) is located in the motor protection shell (5), and the material of the motor protection shell (5) is a sound insulation material.

5. The thin film evaporator according to claim 1, characterized in that The thin film evaporator comprises a control console (6), and the control console (6) is connected to the frequency-modulated motor (2).

6. The thin film evaporator according to claim 5, characterized in that The discharge port (16) is connected to a discharge pipe (7), a control valve (71) is provided on the discharge pipe (7), and the control valve (71) is connected to the control console (6).

7. The thin film evaporator according to claim 5, characterized in that The thin film evaporator comprises a distributor (8), and the distributor (8) is arranged between the feed end (11) and the reaction end (12).

8. The thin film evaporator according to claim 1, characterized in that The thin film evaporator comprises a jacket (9), and the jacket (9) is arranged on the reaction end (12).

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