Scraper film evaporator with descaling structure

Abstract

The utility model discloses a scraper film evaporator with a descaling structure, and relates to the technical field of evaporators, in particular to the scraper film evaporator with the descaling structure, which comprises a cylinder body, a working mechanism is arranged on the cylinder body and is used for forming a film on the inner wall of the cylinder body in the rotating process, and the working mechanism is arranged on the cylinder body. The working mechanism comprises a main body assembly which comprises a barrel rod arranged in a barrel, a lead screw rotationally installed between the upper end and the lower end in the barrel rod, a plurality of internal thread plates installed on the lead screw in a threaded mode, four guide blocks which are fixed to the bottoms of the internal thread plates and distributed circumferentially, and fixing pins installed on the guide blocks in a sliding mode through internal inclined grooves. The execution assembly comprises a plurality of ring sleeves installed on the barrel rod in a sleeving mode, and four fixing holes distributed in the circumference are formed in the ring sleeves and matched with the fixing pins; the execution assemblies can be fixed or fixed in a contact mode at the same time through the main body assembly, and each execution assembly can be disassembled, assembled and replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a scraper film evaporator with a descaling structure. Background Art

[0002] The scraper thin film evaporator is a highly efficient and energy-saving evaporation equipment, which is widely used in chemical, pharmaceutical, food, environmental protection and other fields. The working principle is mainly to form a thin layer of liquid film on the inner wall of the evaporator through the rotating scraper, and then evaporate the liquid film quickly through heating.

[0003] According to the public number: CN220385795U, a scraped film evaporator is disclosed. This technology discloses technical solutions such as "the evaporator cylinder is divided into sections, and the upper cylinder, the middle cylinder, and the lower cylinder are all provided with steam inlet, condensate outlet and exhaust port", which has the technical effects of "ensuring the timeliness of steam during the heating process, preventing the temperature of steam from dropping when the steam is halfway heated, affecting the scraping effect, and the setting of the multi-section cylinder limits the temperature change of the steam, ensuring the uniformity of the scraping";

[0004] The scraper will inevitably wear out due to friction when in contact with the inner wall of the evaporator and the material for a long time. As the use time increases, the size and shape of the scraper may change, so it needs to be replaced in time; however, due to the deep design of the evaporator barrel, the disassembly and assembly process of the scraper is relatively cumbersome. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a scraper film evaporator with a descaling structure, which has the characteristics that each actuator can be fixed or contact-fixed at the same time through a main body component, making it easy to disassemble, assemble and replace each actuator.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a scraper film evaporator with a descaling structure, comprising a cylinder, a working mechanism is provided on the cylinder and is used to form a film on the inner wall of the cylinder during rotation, and the working mechanism includes:

[0007] The main body assembly includes a barrel rod arranged inside the barrel body, a screw rod rotatably installed between the upper and lower ends inside the barrel rod, a plurality of internal thread plates threadedly installed on the screw rod, four circumferentially distributed guide blocks fixed at the bottom of the internal thread plate, and a fixing pin on which the guide block is slidably installed through an internal inclined groove;

[0008] The execution assembly comprises a plurality of ring sleeves mounted on the cylinder rod, four circumferentially distributed fixing holes on the ring sleeves and matched with fixing pins, brackets with outer walls at both ends of the ring sleeves fixed, and a scraper installed at the other end of the brackets.

[0009] Preferably, the actuator assembly further comprises a shell fixed on both sides of the bracket end, a spring sheet installed inside the shell, and fixing grooves are provided on the outer walls at both ends of the scraper and cooperate with the spring sheet.

[0010] Preferably, the actuator assembly further includes a reinforcing rib fixed between the bracket and the ring sleeve.

[0011] Preferably, the angle between the inclined groove inside the guide block and the screw rod is forty-five degrees, and the fixing pin passes through the barrel rod for horizontal sliding installation.

[0012] Preferably, a cover door is hingedly mounted on the lower end of the outer wall of the cylinder, and a hexagonal hole is provided at the bottom of the screw rod.

[0013] Preferably, a flange seat is installed at the lower end of the cylinder, a mounting seat is installed at the upper end of the cylinder, a reduction motor is installed on the top of the mounting seat, and the output end of the reduction motor is connected to the cylinder rod through a coupling.

[0014] Beneficial Effects

[0015] The utility model provides a scraper film evaporator with a descaling structure. Compared with the prior art, it has the following beneficial effects:

[0016] (1) By rotating the screw rod counterclockwise to drive the internal thread plate to move upward, the internal thread plate drives the fixing pin to retract inward through the guide block, thereby releasing the fixation of the actuator, so that the actuator can be removed from the main assembly; or by rotating the screw rod clockwise to drive the internal thread plate to move downward, the internal thread plate drives the fixing pin to extend outward through the guide block and insert it into the fixing hole, thereby fixing the actuator on the main assembly, making it convenient to disassemble and replace each actuator.

[0017] (2) The scraper can be pulled out from between the shells by moving it upward with force, thereby being disassembled and removed, or the scraper can be inserted upward between the shells and embedded in the fixing groove by the rebound pressure of the spring sheet, thereby installing and fixing the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the working mechanism in the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the local A in the middle;

[0021] Figure 4 It is a disassembled diagram of the execution components in the utility model;

[0022] Figure 5 It is a partial cross-sectional view of the execution component in the utility model.

[0023] In the figure: 1. Cylinder; 2. Working mechanism; 21. Main body assembly; 211. Cylinder rod; 212. Screw rod; 213. Internal thread plate; 214. Guide block; 215. Fixing pin; 22. Actuator assembly; 221. Ring sleeve; 222. Fixing hole; 223. Bracket; 224. Scraper; 225. Fixing groove; 226. Shell; 227. Spring sheet; 228. Reinforcing rib; 3. Flange seat; 4. Mounting seat; 5. Speed ​​reducer motor; 6. Coupling. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution of a scraper thin film evaporator with a descaling structure: a scraper thin film evaporator with a descaling structure, comprising a cylinder 1, a working mechanism 2 is arranged on the cylinder 1 and is used to form a thin film on the inner wall of the cylinder 1 during rotation, and the working mechanism 2 comprises:

[0026] The main body assembly 21 includes a barrel rod 211 disposed inside the barrel body 1, a screw rod 212 rotatably mounted between the upper and lower ends inside the barrel rod 211, a plurality of internal thread plates 213 threadedly mounted on the screw rod 212, four circumferentially distributed guide blocks 214 fixed at the bottom of the internal thread plates 213, and a fixing pin 215 slidably mounted on the guide block 214 through an internal inclined groove;

[0027] The actuator assembly 22 includes a plurality of ring sleeves 221 sleeved on the rod 211, four circumferentially distributed fixing holes 222 opened on the ring sleeves 221 and matched with the fixing pins 215, brackets 223 fixed to the outer walls of both ends of the ring sleeves 221, and a scraper 224 installed at the other end of the brackets 223.

[0028] In this embodiment, the internal threaded plate 213 is driven to move upward by rotating the screw rod 212 counterclockwise, and the internal threaded plate 213 drives the fixing pin 215 to retract inward through the guide block 214, thereby releasing the fixation of the actuator 22, so that the actuator 22 can be removed from the main body component 21; or the internal threaded plate 213 is driven to move downward by rotating the screw rod 212 clockwise, and the internal threaded plate 213 drives the fixing pin 215 to extend outward through the guide block 214 and insert it into the fixing hole 222, thereby fixing the actuator 22 on the main body component 21, making it convenient to disassemble, assemble and replace each actuator 22.

[0029] Specifically, the actuator 22 further includes a shell 226 fixed on both sides of the end of the bracket 223 , a spring sheet 227 installed inside the shell 226 , and fixing grooves 225 formed on the outer walls of both ends of the scraper 224 and matched with the spring sheet 227 .

[0030] In this embodiment, the scraper 224 can be pulled out from between the shells 226 by moving it upward with force, so that it can be disassembled and removed, or the scraper 224 can be inserted upward between the shells 226 and embedded in the fixing groove 225 through the rebound pressure of the spring sheet 227, so that the scraper 224 can be installed and fixed.

[0031] Specifically, the actuator 22 further includes a reinforcing rib 228 fixed between the bracket 223 and the ring sleeve 221 .

[0032] In this embodiment, the reinforcing ribs 228 can improve the strength of the joint surface between the ring sleeve 221 and the bracket 223 to avoid deformation therebetween.

[0033] Specifically, the angle between the inclined groove inside the guide block 214 and the screw rod 212 is 45 degrees, and the fixing pin 215 passes through the cylindrical rod 211 and is installed to slide horizontally.

[0034] In this embodiment, when the internal thread plate 213 moves longitudinally, the guide block 214 can drive the fixing pin 215 to move horizontally.

[0035] Specifically, a cover door is hingedly installed at the lower end of the outer wall of the cylinder 1, and a hexagonal hole is provided at the bottom of the screw rod 212.

[0036] In this embodiment, the screw rod 212 can be rotated by opening the cover door and inserting a wrench into the hexagonal hole.

[0037] Specifically, a flange seat 3 is installed at the lower end of the cylinder 1, a mounting seat 4 is installed at the upper end of the cylinder 1, a reduction motor 5 is installed on the top of the mounting seat 4, and the output end of the reduction motor 5 is connected to the cylinder rod 211 through a coupling 6.

[0038] The working principle and use process of the utility model are as follows: first, open the cover door and insert a wrench into the hexagonal hole to rotate the screw rod 212, and the screw rod 212 is rotated counterclockwise to drive the internal thread plate 213 to move upward, and the internal thread plate 213 drives the fixing pin 215 to retract inward through the guide block 214, thereby releasing the fixation of the actuator 22, so that the actuator 22 can be removed from the main body assembly 21; or the screw rod 212 is rotated clockwise to drive the internal thread plate 213 to move downward, and the internal thread plate 213 is retracted inward through the guide block 214. The guide block 214 drives the fixing pin 215 to extend outward and insert it into the fixing hole 222, thereby fixing the actuator 22 on the main assembly 21, so as to facilitate the disassembly, assembly and replacement of each actuator 22; then, the scraper 224 can be pulled out from between the shells 226 by moving it upward with force, so as to be disassembled and removed, or the scraper 224 can be inserted upward between the shells 226 and embedded into the fixing groove 225 by the rebound pressure of the spring sheet 227, so as to install and fix the scraper 224.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraped film evaporator with a descaling structure, comprising a barrel (1), characterized in that: The cylinder (1) is provided with a working mechanism (2) for forming a thin film on the inner wall of the cylinder (1) during rotation. The working mechanism (2) comprises: The main body component (21) comprises a barrel rod (211) arranged inside the barrel body (1), a screw rod (212) rotatably mounted between the upper and lower ends inside the barrel rod (211), a plurality of internal thread plates (213) threadedly mounted on the screw rod (212), four circumferentially distributed guide blocks (214) fixed at the bottom of the internal thread plate (213), and a fixing pin (215) slidably mounted on the guide block (214) through an internal inclined groove; The actuator assembly (22) comprises a plurality of ring sleeves (221) sleeved on the cylindrical rod (211), four circumferentially distributed fixing holes (222) provided on the ring sleeves (221) and matched with the fixing pins (215), brackets (223) fixed to the outer walls of both ends of the ring sleeves (221), and a scraper (224) installed at the other end of the brackets (223).

2. The scraped film evaporator with a descaling structure according to claim 1, characterized in that: The actuator assembly (22) further comprises a housing (226) fixed to both sides of the end of the bracket (223), a spring sheet (227) installed inside the housing (226), and fixing grooves (225) formed on the outer walls at both ends of the scraper (224) and matched with the spring sheet (227).

3. The scraped film evaporator with a descaling structure according to claim 1, characterized in that: The actuator assembly (22) further includes a reinforcing rib (228) fixed between the bracket (223) and the ring sleeve (221).

4. The scraped film evaporator with a descaling structure according to claim 1, characterized in that: The angle between the inclined groove inside the guide block (214) and the screw rod (212) is 45 degrees, and the fixing pin (215) passes through the cylindrical rod (211) and is installed to slide horizontally.

5. The scraped film evaporator with a descaling structure according to claim 1, characterized in that: A cover door is hingedly mounted on the lower end of the outer wall of the cylinder (1), and a hexagonal hole is provided at the bottom of the screw rod (212).

6. The scraped film evaporator with a descaling structure according to claim 1, characterized in that: A flange seat (3) is installed at the lower end of the cylinder (1), a mounting seat (4) is installed at the upper end of the cylinder (1), a reduction motor (5) is installed at the top of the mounting seat (4), and the output end of the reduction motor (5) is connected to the cylinder rod (211) through a coupling (6).

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