Film evaporator with inner wall cleaning structure

Abstract

The utility model relates to the technical field of film evaporators, and discloses a film evaporator with an inner wall cleaning structure, which comprises a reaction device, a feed pipe is fixedly mounted on the surface of the reaction device, and a discharge pipe is fixedly mounted on the lower surface of the reaction device. According to the film evaporator with the inner wall cleaning structure, a motor is started, a rotating shaft rotates, an arc-shaped plate and a connecting shaft are under the action of centrifugal force, a reset spring drives the connecting shaft to slide in a through groove, so that the arc-shaped plate is better attached to the inner wall of a reaction device, the inner wall is cleaned and smoothed, and meanwhile a sawtooth scraper on a movable sleeve is matched with an auxiliary plate; the sawtooth scraping plate is used for cleaning adhered impurities under the action of the pull-up spring, the auxiliary plate has an auxiliary scraping effect on the sawtooth scraping plate, meanwhile, the surface of the sawtooth scraping plate is cleaned, the inner wall of the reaction device is better cleaned, and the subsequent cleaning effect is prevented from being influenced by impurity accumulation.

Description

Technical Field

[0001] The utility model relates to the technical field of thin film evaporators, in particular to a thin film evaporator with an inner wall cleaning structure. Background Art

[0002] Thin film evaporator is a type of evaporator, characterized by the material liquid flowing in a film-like manner along the wall of the heating tube to transfer heat and evaporate. Its advantages are high heat transfer efficiency, fast evaporation speed and short material residence time, so it is particularly suitable for the evaporation of heat-sensitive substances.

[0003] According to a publicly disclosed thin-film evaporator with a scraper structure (Announcement No.: CN219462522U), in the above application, when the scraper body produces a certain amount of wear after long-term use, the spring rebounds and stretches, causing the slide rod to move outward along the slide groove, and then the scraper frame drives the scraper body to move and contact the circumferential inner wall of the evaporator body, so that the scraper body effectively fits the inner wall, facilitating subsequent cleaning and improving the use effect of the device.

[0004] However, during actual use of the above-mentioned equipment, the edge of the scraper is square-shaped and is used to scrape the inner wall of the thin film evaporator, which makes it difficult to clean some impurities adhering to the inner wall. Subsequent impurities push the scraper, causing the scraper to adaptively adjust the distance from the inner wall under the action of the spring, further deteriorating the subsequent cleaning effect of the inner wall. In view of this, we propose a thin film evaporator with an inner wall cleaning structure. Utility Model Content

[0005] The purpose of the present utility model is to provide a thin film evaporator with an inner wall cleaning structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a thin film evaporator with an inner wall cleaning structure, comprising a reaction device, a feed pipe fixedly mounted on the surface of the reaction device, a discharge pipe fixedly mounted on the lower surface of the reaction device, a support frame fixedly mounted on the surface of the reaction device, a motor fixedly mounted on the upper surface of the reaction device, a movable end of the motor fixedly connected to a rotating shaft, an auxiliary cleaning frame fixedly mounted on the lower surface of the rotating shaft, a cleaning mechanism provided inside the reaction device, a promotion mechanism provided inside the reaction device, and the cleaning mechanism comprising:

[0007] A round rod, the round rod being fixedly mounted on the surface of the rotating shaft, the inner wall of the round rod being fixedly connected to a reset spring, the end of the reset spring away from the inner wall of the round rod being fixedly connected to a connecting shaft, the end of the connecting shaft away from the reset spring being fixedly connected to an arc-shaped plate, the inner wall of the arc-shaped plate being movably connected to a movable sleeve;

[0008] A groove is provided on the surface of the movable sleeve, the inner wall of the groove is fixedly connected to a lifting spring, one end of the lifting spring away from the inner wall of the groove is fixedly connected to a serrated scraper, and the surface of the movable sleeve is fixedly connected to an auxiliary plate.

[0009] Preferably, the promotion mechanism includes a movable groove, which is opened on the surface of the arc plate, the inner wall of the movable groove is fixedly connected to the straight rod, the surface of the straight rod is fixedly connected to the torsion spring, and the surface of the movable sleeve is provided with a mounting groove.

[0010] Preferably, the diameter of the mounting groove is adapted to the diameter of the straight rod, the mounting groove is sleeved on the surface of the straight rod, and one end of the torsion spring away from the straight rod is fixedly connected to the inner wall of the movable sleeve.

[0011] Preferably, a through groove is provided on the surface of the round rod, and the diameter of the through groove is matched with the diameter of the connecting shaft, so that the reset spring drives the connecting shaft to slide inside the through groove.

[0012] Preferably, the cross-sectional shape of the groove is adapted to the cross-sectional shape of one end of the serrated scraper close to the lifting spring, so that the serrated scraper can slide on the inner wall of the groove, so that the serrated scraper can better clean the inner wall under the action of the lifting spring.

[0013] Preferably, there are a plurality of the pulling springs, and the plurality of pulling springs are fixedly installed on the inner wall of the groove in a linear array.

[0014] Compared with the prior art, the present invention provides a thin film evaporator with an inner wall cleaning structure, which has the following beneficial effects:

[0015] 1. The thin film evaporator with an inner wall cleaning structure is provided with a cleaning mechanism. When the motor is started, the rotating shaft rotates. Under the action of centrifugal force, the arc plate and the connecting shaft are driven by the reset spring to slide the connecting shaft inside the through groove so that the arc plate can better fit the inner wall of the reaction device, thereby cleaning and smoothing the inner wall. At the same time, the serrated scraper on the movable sleeve cooperates with the auxiliary plate. The serrated scraper cleans the adhered impurities under the action of the lifting spring. The auxiliary plate has an auxiliary scraping effect on the serrated scraper and cleans the surface of the serrated scraper at the same time, thereby ensuring the cleaning effect of the serrated scraper, better cleaning the inner wall of the reaction device, and preventing the accumulation of impurities from affecting the subsequent cleaning effect.

[0016] 2. The thin film evaporator with an inner wall cleaning structure is provided with a promotion mechanism, which enables the movable sleeve to better fit the inner wall of the reaction device under the elastic force of the torsion spring, so that the serrated scraper fits better with the inner wall, making it easier for the serrated scraper to move inside the groove and cooperate with the pulling spring to better clean the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the partial cross-sectional structure of the reaction device of the present utility model;

[0019] Figure 3 This is a partial cross-sectional diagram of the structural shaft of the utility model;

[0020] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the arc-shaped plate of the utility model;

[0021] Figure 5 It is a partial cross-sectional schematic diagram of the movable sleeve of the structure of the utility model.

[0022] In the figure: 1. reaction device; 2. motor; 3. cleaning mechanism; 301. round rod; 302. return spring; 303. connecting shaft; 304. arc plate; 305. groove; 306. movable sleeve; 307. lifting spring; 308. serrated scraper; 309. auxiliary plate; 4. promotion mechanism; 401. movable groove; 402. straight rod; 403. torsion spring; 404. mounting groove; 5. feed pipe; 6. support frame; 7. discharge pipe; 8. rotating shaft; 9. auxiliary cleaning frame. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a thin film evaporator with an inner wall cleaning structure, comprising a reaction device 1, a feed pipe 5 fixedly installed on the surface of the reaction device 1, a discharge pipe 7 fixedly installed on the lower surface of the reaction device 1, a support frame 6 fixedly installed on the surface of the reaction device 1, a motor 2 fixedly installed on the upper surface of the reaction device 1, the movable end of the motor 2 fixedly connected to the rotating shaft 8, an auxiliary cleaning frame 9 fixedly installed on the lower surface of the rotating shaft 8, a cleaning mechanism 3 is provided inside the reaction device 1, and a promotion mechanism 4 is provided inside the reaction device 1, the cleaning mechanism 3 includes a round rod 301, a reset spring 302, a connecting shaft 303, an arc plate 304, a groove 305, a movable sleeve 306, a pulling spring 307, a serrated scraper 308, and an auxiliary plate 309.

[0024] In one embodiment of the present utility model, the round rod 301 is fixedly installed on the surface of the rotating shaft 8, the inner wall of the round rod 301 is fixedly connected to the reset spring 302, the end of the reset spring 302 away from the inner wall of the round rod 301 is fixedly connected to the connecting shaft 303, the end of the connecting shaft 303 away from the reset spring 302 is fixedly connected to the arc plate 304, the inner wall of the arc plate 304 is movably connected to the movable sleeve 306, the groove 305 is opened on the surface of the movable sleeve 306, the inner wall of the groove 305 is fixedly connected to the lifting spring 307, the end of the lifting spring 307 away from the inner wall of the groove 305 is fixedly connected to the serrated scraper 308, and the surface of the movable sleeve 306 is fixedly connected to the auxiliary plate 309.

[0025] In addition, the promotion mechanism 4 includes a movable groove 401, which is opened on the surface of the arc plate 304. The inner wall of the movable groove 401 is fixedly connected to the straight rod 402. The surface of the straight rod 402 is fixedly connected to the torsion spring 403. The surface of the movable sleeve 306 is provided with a mounting groove 404. The diameter of the mounting groove 404 is adapted to the diameter of the straight rod 402. The mounting groove 404 is sleeved on the surface of the straight rod 402. The end of the torsion spring 403 away from the straight rod 402 is fixedly connected to the inner wall of the movable sleeve 306, so that the movable sleeve 306 can move on the surface of the straight rod 402, so that the serrated scraper 308 can better fit the inner wall of the reaction device 1.

[0026] In an embodiment of the present invention, a through groove is provided on the surface of the round rod 301, and the diameter of the through groove is adapted to the diameter of the connecting shaft 303. The cross-sectional shape of the groove 305 is adapted to the cross-sectional shape of one end of the serrated scraper 308 close to the lifting spring 307, so that the serrated scraper 308 can move inside the groove 305. There are several lifting springs 307, and several lifting springs 307 are fixedly installed in a linear array on the inner wall of the groove 305, so as to facilitate the movement of the serrated scraper 308 inside the groove 305, providing a source of power for the extension and retraction of the serrated scraper 308, so that the serrated scraper 308 can better clean the inner wall of the reaction device 1. At the same time, there are two groups of arc plates 304, and the two groups of arc plates 304 are fixedly installed in a mirror-image manner on the surface of the rotating shaft 8 to ensure the stability of the operation of the arc plates 304. Secondly, there are two groups of straight rods 402, and the two groups of straight rods 402 are fixedly installed in a mirror-image manner on the inner walls of both ends of the arc plate 304.

[0027] In the present invention, when in use, the motor 2 is started to drive the rotating shaft 8 to rotate. Under the action of centrifugal force, the return spring 302 drives the connecting shaft 303 to slide inside the through groove so that the arc plate 304 can better fit the inner wall of the reaction device 1, and the inner wall is cleaned and smoothed. At the same time, the serrated scraper 308 on the movable sleeve 306 cooperates with the auxiliary plate 309. The serrated scraper 308 cleans the adhered impurities under the action of the lifting spring 307. The auxiliary plate 309 assists the serrated scraper 308 in scraping and cleans the surface of the serrated scraper 308 to ensure the cleaning effect of the serrated scraper 308, and better cleans the inner wall of the reaction device 1 to prevent the accumulation of impurities from affecting the subsequent cleaning effect.

[0028] Under the elastic force of the torsion spring 403, the movable sleeve 306 fits better with the inner wall of the reaction device 1, and the serrated scraper 308 fits better with the inner wall, making it easier for the serrated scraper 308 to move inside the groove 305 and cooperate with the pulling spring 307 to better clean the inner wall. The auxiliary cleaning frame 9 follows the rotating shaft 8 to clean the lower end of the reaction device 1, and finally the impurities flow out from the discharge pipe 7.

[0029] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A thin film evaporator with an inner wall cleaning structure, comprising a reaction device (1), a feed pipe (5) fixedly mounted on the surface of the reaction device (1), a discharge pipe (7) fixedly mounted on the lower surface of the reaction device (1), a support frame (6) fixedly mounted on the surface of the reaction device (1), a motor (2) fixedly mounted on the upper surface of the reaction device (1), a movable end of the motor (2) fixedly connected to a rotating shaft (8), and an auxiliary cleaning frame (9) fixedly mounted on the lower surface of the rotating shaft (8), characterized in that: A cleaning mechanism (3) is provided inside the reaction device (1), and a promoting mechanism (4) is provided inside the reaction device (1). The cleaning mechanism (3) comprises: A round rod (301), the round rod (301) is fixedly mounted on the surface of the rotating shaft (8), the inner wall of the round rod (301) is fixedly connected to a reset spring (302), one end of the reset spring (302) away from the inner wall of the round rod (301) is fixedly connected to a connecting shaft (303), one end of the connecting shaft (303) away from the reset spring (302) is fixedly connected to an arc plate (304), and the inner wall of the arc plate (304) is movably connected to a movable sleeve (306); A groove (305) is provided on the surface of the movable sleeve (306), the inner wall of the groove (305) is fixedly connected to a lifting spring (307), one end of the lifting spring (307) away from the inner wall of the groove (305) is fixedly connected to a sawtooth scraper (308), and the surface of the movable sleeve (306) is fixedly connected to an auxiliary plate (309).

2. The thin film evaporator with an inner wall cleaning structure according to claim 1, characterized in that: The promotion mechanism (4) includes a movable groove (401), the movable groove (401) is provided on the surface of the arc-shaped plate (304), the inner wall of the movable groove (401) is fixedly connected to a straight rod (402), the surface of the straight rod (402) is fixedly connected to a torsion spring (403), and the surface of the movable sleeve (306) is provided with a mounting groove (404).

3. The thin film evaporator with an inner wall cleaning structure according to claim 2, characterized in that: The diameter of the mounting groove (404) is adapted to the diameter of the straight rod (402), and the mounting groove (404) is sleeved on the surface of the straight rod (402). One end of the torsion spring (403) away from the straight rod (402) is fixedly connected to the inner wall of the movable sleeve (306).

4. The thin film evaporator with an inner wall cleaning structure according to claim 1, characterized in that: A through groove is provided on the surface of the round rod (301), and the diameter of the through groove is adapted to the diameter of the connecting shaft (303).

5. The thin film evaporator with an inner wall cleaning structure according to claim 1, characterized in that: The cross-sectional shape of the groove (305) matches the cross-sectional shape of one end of the sawtooth scraper (308) close to the lifting spring (307).

6. The thin film evaporator with an inner wall cleaning structure according to claim 1, characterized in that: There are a number of the lifting springs (307), and the lifting springs (307) are fixedly installed on the inner wall of the groove (305) in a linear array.

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