Flange electric heater with good heat-conducting property

Abstract

The utility model discloses a flange electric heater with good heat conduction performance, which comprises a heater main body, a plurality of heating pipes are connected in the heater main body, the heating pipes are connected with a scraping mechanism, the scraping mechanism comprises a moving disc, a pushing disc, a plurality of scraping blades, a plurality of springs I, a plurality of tightening holes and a screw rod, the ends of the multiple scraping pieces are movably connected to the pushing disc, the tightening holes are formed in the moving disc and used for tightening the scraping pieces, the first springs are used for driving the corresponding scraping pieces to be opened, the lead screws are used for driving the pushing disc to reciprocate in the length direction of the lead screws, and the pushing disc is connected with a driving mechanism used for driving the moving disc to move. Dirt attached to the surface of the heating pipe can be scraped away through the scraping piece, the heat conduction effect is improved, the end of the scraping piece is tightly pressed on the outer surface of the heating pipe, the descaling effect is improved, and the device can be suitable for heating pipes with different diameters, can be flexibly adjusted according to the actual assembly size and is high in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to a flange electric heater with good thermal conductivity. Background Art

[0002] Electric heaters are a popular type of electric heating device used to heat, insulate, and heat flowing liquid and gaseous media. When the heating medium passes through the heater's heating chamber under pressure, the principles of fluid thermodynamics evenly dissipate the enormous heat generated by the heating element, ensuring that the heated medium's temperature meets the user's process requirements. Flange electric heaters, a type of electric heater, utilize multiple heating tubes welded to a flange for centralized heating.

[0003] After a long time, the existing electric heater will cause more dirt to adhere to the surface of the heating tube due to the presence of calcium, magnesium, salts and other components in the water, which will affect the heat conduction effect and shorten the service life of the heater. Utility Model Content

[0004] The purpose of the utility model is to provide a flange electric heater with good thermal conductivity, which has the advantages of being able to scrape off dirt attached to the surface of the heating tube and improve the thermal conductivity, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange electric heater with good thermal conductivity, comprising a heater body, a plurality of heating tubes connected to the heater body, the heating tubes being connected to a scraping mechanism, the scraping mechanism comprising a movable disk, a pushing disk, a plurality of scrapers, a plurality of springs, a plurality of tightening holes, and a screw rod, the ends of the plurality of scrapers being movably connected to the pushing disk, the tightening holes being arranged on the moving disk, and the tightening holes being used to tighten the scrapers, the spring being used to drive the corresponding scrapers to open, the screw being used to drive the pushing disk to reciprocate along the length direction of the screw rod, and the pushing disk being connected to a driving mechanism for driving the movable disk to move.

[0006] Preferably, the scraping mechanism also includes two guide pillars and a motor, the motor is connected to the end of the heater body, and the power output end of the motor is connected to the screw rod, the end of the screw rod is rotatably connected to the heater body, and the guide pillar is used to push the disk and move the disk guide.

[0007] Preferably, the guide pillar is fixed in the heater body, and the guide pillar passes through the pushing plate and the moving plate.

[0008] Preferably, the scraper blade includes an upper scraper blade and a lower scraper blade, and both ends of the spring are connected to the upper scraper blade and the lower scraper blade.

[0009] Preferably, the upper scraper and the lower scraper are provided with scraping surfaces, and the scraping surfaces are annular inclined surfaces.

[0010] Preferably, the screw rod is threadedly connected to the pushing disk, and the screw rod is slidingly connected to the moving disk.

[0011] Preferably, the driving mechanism includes a stud, a rotary handle, a limiting groove, a connecting column, a rotary rod, a second spring, a first conical tooth, a second conical tooth, and a guide groove. The second conical tooth is connected to the end of the stud, and the second conical tooth is meshed with the first conical tooth. The stud is rotatably connected to the pushing disk, and the stud is threadedly connected to the movable disk. The rotary rod is rotatably connected to the pushing disk, and the bottom of the rotary rod is connected to the first conical tooth. The guide groove is arranged in the rotary rod, and the connecting column is slidably connected to the guide groove. The second spring is used to drive the rotary handle to move in a direction close to the pushing disk. The top of the connecting column is connected to the rotary handle, and the rotary handle matches the limiting groove. The limiting groove is arranged on the outside of the pushing disk.

[0012] Preferably, the second spring is located in the guide groove, and both ends of the second spring are connected to the connecting column and the rotating rod.

[0013] Preferably, the cross-section of the rotary handle and the connecting column is a regular polygonal structure.

[0014] Preferably, an end cover is detachably connected to the top of the heater body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is provided with a scraping mechanism and a driving mechanism, and the motor can drive the screw to rotate, so that the pushing disk and the movable disk move back and forth, that is, the scraper can scrape off the dirt attached to the surface of the heating tube, thereby improving the heat conduction effect. Secondly, the rotary handle can be driven to rotate the connecting column, and the connecting column drives the rotary rod and the conical tooth 1 to rotate. The conical tooth 1 cooperates with the conical tooth 2 to realize the rotation of the stud, and the distance between the movable disk and the pushing disk can be changed. In combination with the use of the tightening hole and the spring 1, the scraper can be tightened or opened conveniently, so that the end of the scraper is pressed against the outer surface of the heating tube, thereby improving the descaling effect. In addition, the utility model can be applied to heating tubes of different diameters, and can be flexibly adjusted according to the actual assembly size, with strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the heater body of the present invention;

[0018] Figure 3 This is a schematic diagram of the connection structure between the scraper and the heating tube of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the movable plate and the push plate of the utility model;

[0020] Figure 5 for Figure 4 A partial enlarged view of

[0021] Figure 6 for Figure 5 A partial enlarged view of .

[0022] In the figure: 1. Heater body; 2. Motor; 3. End cover; 4. Stud; 5. Scraper; 6. Moving plate; 7. Heating tube; 8. Guide column; 9. Screw rod; 10. Scraper surface; 11. Spring 1; 12. Push plate; 13. Rotary handle; 14. Limiting groove; 15. Connecting column; 16. Rotary rod; 17. Spring 2; 18. Conical tooth 1; 19. Conical tooth 2; 20. Guide groove; 21. Tightening hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 The utility model provides a flange electric heater with good thermal conductivity, including a heater body 1, a plurality of heating tubes 7 connected to the heater body 1, the heating tubes 7 are connected to a scraping mechanism, the scraping mechanism includes a movable disk 6, a pushing disk 12, a plurality of scrapers 5, a plurality of springs 11, a plurality of tightening holes 21, and a screw rod 9, the ends of the plurality of scrapers 5 are movably connected to the pushing disk 12, the tightening hole 21 is provided on the movable disk 6, and the tightening hole 21 is used to tighten the scraper 5, the spring 11 is used to drive the corresponding scraper 5 to open, the screw rod 9 is used to drive the pushing disk 12 to reciprocate along the length direction of the screw rod 9, and the pushing disk 12 is connected to a driving mechanism for driving the movable disk 6 to move.

[0025] The motor 2 can drive the screw 9 to rotate, so that the pushing disk 12 and the movable disk 6 move back and forth along the length direction of the screw 9, and synchronously drive the movement of the scraper 5, so that the scraper 5 can scrape off the dirt attached to the surface of the heating tube 7, thereby improving the heat conduction effect of the heater.

[0026] The scraping mechanism also includes two guide columns 8 and a motor 2. The motor 2 is connected to the end of the heater body 1, and the power output end of the motor 2 is connected to the screw rod 9. The end of the screw rod 9 is rotatably connected to the heater body 1. The guide column 8 is used to guide the pushing disk 12 and the movable disk 6, which can improve the stability of the movement of the pushing disk 12 and the movable disk 6.

[0027] The guide post 8 is fixed in the heater body 1 , and the guide post 8 passes through the pushing plate 12 and the moving plate 6 .

[0028] The scraper 5 includes an upper scraper and a lower scraper, and both ends of the spring 11 are connected to the upper scraper and the lower scraper.

[0029] The upper scraper and the lower scraper are provided with a scraping surface 10 , which is an annular inclined surface, so as to facilitate cleaning of dirt on the surface of the heating tube 7 .

[0030] The screw rod 9 is threadedly connected to the pushing disk 12 , and the screw rod 9 is slidingly connected to the moving disk 6 .

[0031] The driving mechanism includes a stud 4, a rotary handle 13, a limiting groove 14, a connecting column 15, a rotary rod 16, a spring 2 17, a conical tooth 18, a conical tooth 2 19, and a guide groove 20. The conical tooth 2 19 is connected to the end of the stud 4, and the conical tooth 2 19 is meshed with the conical tooth 18. The stud 4 is rotatably connected to the pushing disk 12. The stud 4 is threadedly connected to the movable disk 6. The rotary rod 16 is rotatably connected to the pushing disk 12, and the bottom of the rotary rod 16 is connected to the conical tooth 18. The guide groove 20 is arranged in the rotary rod 16. The connecting column 15 is slidably connected to the guide groove 20. The spring 2 17 is used to drive the rotary handle 13 to move toward the pushing disk 12. The top of the connecting column 15 is connected to the rotary handle 13. The rotary handle 13 matches the limiting groove 14. The limiting groove 14 is arranged on the outside of the pushing disk 12. Applying an upward pulling force to the handle 13 separates the handle 13 from the limiting groove 14, thereby loosening the handle 13. At this time, the connecting column 15 also moves upward synchronously, and the spring 2 17 is stretched. Rotating the handle 13 again can drive the connecting column 15 and the rotating rod 16 to rotate, and the rotating rod 16 drives the conical tooth 18 to rotate. The conical tooth 18 cooperates with the conical tooth 2 19 to rotate the stud 4, which facilitates the movement of the movable disk 6. Then, with the use of the tightening hole 21 and the spring 11, it is convenient to tighten or open the scraper 5, so that the end of the scraper 5 is pressed against the outer surface of the heating tube 7, improving the descaling effect. It is also applicable to heating tubes 7 of different diameters and can be flexibly adjusted according to the actual assembly size. Finally, loosening the handle 13, the stretched spring 2 17 drives the handle 13 back to its original position, so that the handle 13 is connected to the limiting groove 14, limiting the handle 13, preventing the movable disk 6 from moving, and improving the pressing effect of the scraper 5 on the heating tube 7.

[0032] The second spring 17 is located in the guide groove 20 , and both ends of the second spring 17 are connected to the connecting column 15 and the rotating rod 16 .

[0033] The cross-section of the rotary handle 13 and the connecting column 15 is a regular polygonal structure. The rotation of the rotary handle 13 can synchronously drive the rotation of the connecting column 15, and the connecting column 15 and the rotary rod 16 slide up and down. The rotary rod 16 rotates around its own axis and cannot be raised or lowered, so that the conical tooth 1 18 rotates stably and avoids the conical tooth 1 18 and the conical tooth 2 19 from being misaligned, which affects the transmission effect.

[0034] The top of the heater body 1 is detachably connected to an end cover 3 , which is detachably connected by bolts or snap connections, making it easy to open the end cover 3 and operate the rotary handle 13 .

[0035] Working principle: The motor 2 drives the screw 9 to rotate, and the screw 9 is threadedly connected to the push disk 12. In conjunction with the use of the guide column 8, the push disk 12 and the movable disk 6 can be driven to move back and forth along the length of the screw 9, so that the scraper 5 can scrape the heating tube 7, which is convenient for cleaning the attached dirt and improving the heat conduction effect of the heater. The end cover 3 can be opened to operate the rotary handle 13. Driving the rotary handle 13 to rotate can drive the connecting column 15 to rotate. The connecting column 15 drives the rotary rod 16 to rotate, thereby driving the conical gear 18 to rotate. The conical gear 18 cooperates with the conical gear 2 19 to move the movable disk 6, and the distance between the movable disk 6 and the push disk 12 can be changed. Then, through the tightening hole 21 and the spring 11, the scraper 5 can be tightened or opened, so that the end of the scraper 5 is pressed against the outer surface of the heating tube 7, improving the descaling effect. It is also suitable for heating tubes 7 of different diameters and can be flexibly adjusted according to the actual assembly size. Finally, the handle 13 is released, and the stretched spring 2 17 can quickly drive the handle 13 back to its original position, so that the handle 13 is docked with the limiting groove 14, thereby limiting the handle 13 and preventing the connecting column 15 from rotating, ensuring a certain distance between the movable disk 6 and the movable disk 12, and improving the pressing effect of the scraper 5 on the heating tube 7.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange electric heater with good thermal conductivity, comprising a heater body (1), characterized in that: A plurality of heating tubes (7) are connected to the heater body (1), and the heating tubes (7) are connected to a scraping mechanism, which includes a movable disk (6), a push disk (12), a plurality of scrapers (5), a plurality of springs (11), a plurality of tightening holes (21), and a screw rod (9). The ends of the plurality of scrapers (5) are movably connected to the push disk (12), the tightening holes (21) are provided on the movable disk (6), and the tightening holes (21) are used to tighten the scrapers (5), the springs (11) are used to drive the corresponding scrapers (5) to open, the screw rod (9) is used to drive the push disk (12) to reciprocate along the length direction of the screw rod (9), and the push disk (12) is connected to a driving mechanism for driving the movable disk (6) to move.

2. A flange electric heater with good thermal conductivity according to claim 1, characterized in that: The scraping mechanism further includes two guide posts (8) and a motor (2). The motor (2) is connected to the end of the heater body (1), and the power output end of the motor (2) is connected to a screw rod (9). The end of the screw rod (9) is rotatably connected to the heater body (1). The guide posts (8) are used to push the disk (12) and guide the movable disk (6).

3. A flange electric heater with good thermal conductivity according to claim 2, characterized in that: The guide column (8) is fixed in the heater body (1), and the guide column (8) passes through the pushing disk (12) and the moving disk (6).

4. A flange electric heater with good thermal conductivity according to claim 1, characterized in that: The scraper (5) comprises an upper scraper and a lower scraper, and the two ends of the spring (11) are connected to the upper scraper and the lower scraper.

5. A flange electric heater with good thermal conductivity according to claim 4, characterized in that: The upper scraper blade and the lower scraper blade are provided with scraping surfaces (10), and the scraping surfaces (10) are annular inclined surfaces.

6. A flange electric heater with good thermal conductivity according to claim 1, characterized in that: The screw rod (9) is threadedly connected to the pushing disk (12), and the screw rod (9) is slidingly connected to the moving disk (6).

7. The flange electric heater with good thermal conductivity according to claim 1, characterized in that: The driving mechanism includes a stud (4), a rotary handle (13), a limiting groove (14), a connecting column (15), a rotary rod (16), a second spring (17), a conical tooth (18), a second conical tooth (19), and a guide groove (20). The second conical tooth (19) is connected to the end of the stud (4), and the second conical tooth (19) is meshed with the first conical tooth (18). The stud (4) is rotatably connected to the pushing disk (12). The stud (4) is threadedly connected to the moving disk (6). The rotary rod (16) is rotatably connected to the pushing disk (12). The driving plate (12) is connected to the bottom of the rotary rod (16) and the conical tooth 1 (18). The guide groove (20) is set in the rotary rod (16). The connecting column (15) is slidably connected to the guide groove (20). The spring 2 (17) is used to drive the rotary handle (13) to move toward the driving plate (12). The top of the connecting column (15) is connected to the rotary handle (13). The rotary handle (13) matches the limiting groove (14). The limiting groove (14) is set on the outside of the driving plate (12).

8. A flange electric heater with good thermal conductivity according to claim 7, characterized in that: The second spring (17) is located in the guide groove (20), and both ends of the second spring (17) are connected to the connecting column (15) and the rotating rod (16).

9. The flange electric heater with good thermal conductivity according to claim 7, characterized in that: The cross-sections of the rotary handle (13) and the connecting column (15) are regular polygonal structures.

10. The flange electric heater with good thermal conductivity according to claim 1, characterized in that: The top of the heater body (1) is detachably connected to an end cover (3).

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