Pipeline type electric heater

Abstract

The utility model discloses a pipeline type electric heater, and particularly relates to the technical field of pipeline type electric heaters, which comprises a pipeline, a sealing plate is arranged on one side of the pipeline, a protection pipe is arranged in the pipeline in a penetrating manner, and one end of the protection pipe penetrates through the sealing plate and extends out of one side of the sealing plate. The sides, away from each other, of the pipeline and the sealing plate support the two ends of the protection pipe through supports, a plurality of electric heating pipes are arranged in the protection pipe, and a rotating mechanism for cleaning dirt on the outer wall of the protection pipe and the inner wall of the pipeline is arranged in the pipeline. Dirt on the inner wall of the pipeline and the outer wall of the protection pipe can be cleaned through the rotating mechanism, the heating efficiency is improved, impurities in liquid can be filtered through the filtering mechanism, and the situation that the impurities enter the pipeline and affect the heating efficiency is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipeline electric heater technology, and specifically to a pipeline electric heater. Background Technology

[0002] Pipeline electric heaters are energy-saving devices that generate heat through electricity to preheat materials. They are installed before the materials and equipment to directly heat the materials, allowing them to circulate and heat at high temperatures, ultimately achieving energy savings. They are widely used for preheating fuel oils such as heavy oil, asphalt, and light oil.

[0003] For example, Chinese patent application number 202221530145.9 discloses a pipeline electric heater, which includes a pipeline, a heating element and an agitator assembly inside the pipeline, a housing at one end of the pipeline, a motor and wiring terminals inside the housing, an insulation layer on the outer surface of the pipeline, a cleaning assembly at the bottom of the insulation layer, a drain valve connected to the bottom of the pipeline, and a drain pipe connected to the bottom of the drain valve. This invention, by installing the cleaning assembly, allows water to be drawn from a tank after heating by opening a one-way valve and activating a booster pump. The water then flows from the outlet pipe into the delivery pipe. A nozzle connected to the one-way valve is installed inside the pipeline, spraying water from the nozzle to flush the inner wall of the pipeline. During flushing, the motor is restarted to rotate the agitator rod and blades, thus cleaning the inner wall of the pipeline. The wastewater is then discharged from the drain pipe by opening the drain valve.

[0004] However, the following problems still exist in this technical solution: due to the high temperature on the surface of the electric heating tube, liquid is prone to local caking and adhering to the electric heating tube, which affects the heat transfer of the electric heating tube and is easy to damage the electric heating tube. Utility Model Content

[0005] The purpose of this invention is to provide a pipeline electric heater that can clean the dirt on the inner wall of the pipeline and the outer wall of the protective tube through a rotating mechanism, thereby improving heating efficiency. It can also filter impurities in the liquid through a filtration mechanism, preventing impurities from entering the pipeline and affecting heating efficiency, thus solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe-type electric heater, comprising a pipe, a sealing plate on one side of the pipe, a protective tube running through the inside of the pipe, one end of the protective tube passing through the sealing plate and extending out of one side of the sealing plate, the sides of the pipe and the sealing plate that are far apart being supported by brackets at both ends of the protective tube, a plurality of electric heating tubes inside the protective tube, and a rotating mechanism inside the pipe for cleaning dirt from the outer wall of the protective tube and the inner wall of the pipe.

[0007] Preferably, the rotating mechanism includes limiting cylinders respectively disposed inside the pipe and the sealing plate. Two connecting rods are fixedly provided on the side of the two limiting cylinders that are close to each other. One end of the two connecting rods located on the same side is fixedly provided with the same first cleaning plate. One side of the first cleaning plate is in contact with the inner wall of the pipe. A second cleaning plate is provided on one side of the first cleaning plate. Both ends of the second cleaning plate are fixedly connected to the two connecting rods. One side of the second cleaning plate is in contact with the protective pipe, and is used to clean the dirt on the outer wall of the protective pipe and the inner wall of the pipe.

[0008] Preferably, the two limiting cylinders are movably connected to the pipe and the sealing plate respectively via bearings. The two limiting cylinders are respectively passed through both ends of the protective pipe. A rotating shaft is movably connected to one side of the pipe via a bearing. A gear is passed through one end of the rotating shaft and one of the limiting cylinders. The two gears mesh with each other. A motor is fixedly installed at one end of the rotating shaft to drive the limiting cylinder to rotate.

[0009] Preferably, the top of the pipe is provided with a filtration mechanism for filtering liquid. The filtration mechanism includes a feed pipe connected to the top of the pipe, a baffle plate at the top of the feed pipe, a water inlet pipe fixedly connected to the top of the baffle plate, a filter screen inside the feed pipe, and a pipe cap inserted into the top of the water inlet pipe for filtering liquid.

[0010] Preferably, the top of the feed pipe is provided with a support plate, and both the support plate and the shield plate are provided with multiple second threaded holes. The two connected second threaded holes are internally threaded with the same second bolt for cleaning impurities on the filter screen.

[0011] Preferably, a disassembly mechanism is provided on one side of the pipe to facilitate the disassembly of the sealing plate. The disassembly mechanism includes a first fixing plate on one side of the sealing plate and a second fixing plate fixed on one side of the pipe. Both the first fixing plate and the second fixing plate are provided with multiple first threaded holes. The two connected first threaded holes are internally threaded with the same first bolt to facilitate the disassembly of the sealing plate.

[0012] Preferably, a water outlet pipe is fixedly connected to one side of the sealing plate for the discharge of liquid.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. Start the motor. The motor can drive the limit cylinder to rotate. The rotation of the limit cylinder can drive the connecting rod to rotate. The connecting rod can drive the first cleaning plate and the second cleaning plate to rotate. The rotation of the first cleaning plate can clean the dirt on the inner wall of the pipe, and the rotation of the second cleaning plate can clean the dirt on the outer wall of the protective pipe, thereby improving heating efficiency.

[0015] 2. Pour the liquid into the feed pipe through the water inlet pipe. The filter screen inside the feed pipe can filter impurities in the liquid, preventing impurities from entering the pipe and affecting the heating efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a front view of the present invention;

[0018] Figure 2 This is a rear view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the pipe of this utility model;

[0020] Figure 4 This is a schematic diagram of the rotating mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the filter mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the disassembly mechanism of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Pipe; 2. Protective pipe; 3. Electric heating element;

[0025] 4. Rotating mechanism, 401. Limiting cylinder, 402. Connecting rod, 403. First cleaning plate, 404. Second cleaning plate, 405. Rotating shaft, 406. Gear, 407. Motor;

[0026] 5. Sealing plate;

[0027] 6. Disassembly mechanism; 601. First fixing plate; 602. Second fixing plate; 603. First threaded hole; 604. First bolt;

[0028] 7 Filtering mechanism, 701 Feed pipe, 702 Baffle plate, 703 Water inlet pipe, 704 Support plate, 705 Second threaded hole, 706 Second bolt, 707 Filter screen, 708 Pipe cap;

[0029] 8. Water outlet pipes. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] This utility model provides, for example Figure 1-6 The illustrated pipe-type electric heater includes a pipe 1, a sealing plate 5 on one side of the pipe 1, a protective tube 2 running through the inside of the pipe 1, one end of the protective tube 2 passing through the sealing plate 5 and extending out of one side of the sealing plate 5, the sides of the pipe 1 and the sealing plate 5 that are far apart are respectively supported by brackets at both ends of the protective tube 2, a plurality of electric heating tubes 3 are provided inside the protective tube 2, and a rotating mechanism 4 is provided inside the pipe 1 to clean dirt from the outer wall of the protective tube 2 and the inner wall of the pipe 1, and a water outlet pipe 8 is fixedly connected to one side of the sealing plate 5.

[0032] like Figure 5 As shown, the top of the pipe 1 is provided with a filter mechanism 7 for filtering liquid. The filter mechanism 7 includes a feed pipe 701 connected to the top of the pipe 1, a baffle plate 702 on the top of the feed pipe 701, a water inlet pipe 703 fixedly connected to the top of the baffle plate 702, a filter screen 707 inside the feed pipe 701, and a pipe cap 708 inserted into the top of the water inlet pipe 703.

[0033] Pull the cap 708 out of the inlet pipe 703, and then pour the liquid into the feed pipe 701 through the inlet pipe 703. The filter screen 707 inside the feed pipe 701 can filter impurities in the liquid to prevent impurities from entering the pipe 1 and affecting the heating efficiency. The filtered liquid enters the pipe 1 through the feed pipe 701. Start the electric heating tube 3. The electric heating tube 3 can heat the liquid inside the pipe 1. When it is necessary to drain the liquid inside the pipe 1, simply open the outlet pipe 8.

[0034] like Figure 5 As shown, the top of the feed pipe 701 is provided with a support plate 704. Both the support plate 704 and the baffle plate 702 are provided with a plurality of second threaded holes 705. The two connected second threaded holes 705 are internally threaded with the same second bolt 706.

[0035] Rotate the second bolt 706 to unscrew it from the two second threaded holes 705, then pull the baffle plate 702 to remove it from the top of the feed pipe 701. This will make it easier for staff to clean the impurities on the filter screen 707 and prevent impurities from clogging the filter screen 707 and affecting the filtration efficiency.

[0036] like Figure 4As shown, the rotating mechanism 4 includes limiting cylinders 401 respectively disposed inside the pipe 1 and the sealing plate 5. Two connecting rods 402 are fixedly provided on the side of the two limiting cylinders 401 that are close to each other. One end of the two connecting rods 402 located on the same side is fixedly provided with the same first cleaning plate 403. One side of the first cleaning plate 403 is in contact with the inner wall of the pipe 1. A second cleaning plate 404 is provided on one side of the first cleaning plate 403. Both ends of the second cleaning plate 404 are fixedly connected to the two connecting rods 402. One side of the second cleaning plate 404 is in contact with the protective pipe 2.

[0037] like Figure 4 As shown, the two limiting cylinders 401 are movably connected to the pipe 1 and the sealing plate 5 respectively through bearings. The two limiting cylinders 401 are respectively passed through both ends of the protective pipe 2. A rotating shaft 405 is movably connected to one side of the pipe 1 through a bearing. A gear 406 is passed through one end of the rotating shaft 405 and one of the limiting cylinders 401. The two gears 406 mesh with each other. A motor 407 is fixedly installed at one end of the rotating shaft 405.

[0038] When the motor 407 is started, it drives the rotating shaft 405 to rotate. Under the action of the two gears 406, the rotating shaft 405 can rotate the limiting cylinder 401. The rotation of the limiting cylinder 401 can drive the connecting rod 402 to rotate. The connecting rod 402 can drive the first cleaning plate 403 and the second cleaning plate 404 to rotate. The rotation of the first cleaning plate 403 can clean the dirt on the inner wall of the pipe 1, and the rotation of the second cleaning plate 404 can clean the dirt on the outer wall of the protective pipe 2, thereby improving the heating efficiency.

[0039] like Figure 6 As shown, a disassembly mechanism 6 is provided on one side of the pipe 1 to facilitate the disassembly of the sealing plate 5. The disassembly mechanism 6 includes a first fixing plate 601 provided on one side of the sealing plate 5 and a second fixing plate 602 fixed on one side of the pipe 1. Both the first fixing plate 601 and the second fixing plate 602 are provided with a plurality of first threaded holes 603. The two connected first threaded holes 603 are internally threaded with the same first bolt 604.

[0040] Rotate the first bolt 604 to turn it out from the two first threaded holes 603. Then pull the sealing plate 5 to pull it open from one side of the pipe 1. The sealing plate 5 can pull the protective pipe 2 out from the inside of the pipe 1, making it convenient for staff to clean the dirt out of the inside of the pipe 1 and avoid affecting the next use.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pipe-type electric heater, comprising a pipe (1), characterized in that: A sealing plate (5) is provided on one side of the pipe (1), a protective pipe (2) is provided inside the pipe (1), a plurality of electric heating tubes (3) are provided inside the protective pipe (2), and a rotating mechanism (4) is provided inside the pipe (1) to clean the dirt on the outer wall of the protective pipe (2) and the inner wall of the pipe (1). The rotating mechanism (4) includes limiting cylinders (401) respectively disposed inside the pipe (1) and the sealing plate (5). Two connecting rods (402) are fixedly provided on the side of the two limiting cylinders (401) that are close to each other. One end of the two connecting rods (402) located on the same side is fixedly provided with the same first cleaning plate (403). One side of the first cleaning plate (403) is in contact with the inner wall of the pipe (1). A second cleaning plate (404) is provided on one side of the first cleaning plate (403). Both ends of the second cleaning plate (404) are fixedly connected to the two connecting rods (402). One side of the second cleaning plate (404) is in contact with the protective pipe (2).

2. A pipe-type electric heater according to claim 1, characterized in that: One end of the protective tube (2) passes through the sealing plate (5) and extends out of one side of the sealing plate (5). The two ends of the protective tube (2) are supported by brackets on the opposite sides of the pipe (1) and the sealing plate (5).

3. A pipeline electric heater according to claim 1, characterized in that: The two limiting cylinders (401) are respectively connected to the pipe (1) and the sealing plate (5) through bearings. The two limiting cylinders (401) pass through both ends of the protective pipe (2). A rotating shaft (405) is movably connected to one side of the pipe (1) through a bearing. A gear (406) passes through one end of the rotating shaft (405) and one of the limiting cylinders (401). The two gears (406) mesh with each other. A motor (407) is fixedly installed at one end of the rotating shaft (405).

4. A pipe-type electric heater according to claim 1, characterized in that: The top of the pipe (1) is equipped with a filter mechanism (7) for filtering liquid; The filtration mechanism (7) includes a feed pipe (701) connected to the top of the pipe (1), a baffle plate (702) provided at the top of the feed pipe (701), a water inlet pipe (703) fixedly connected to the top of the baffle plate (702), a filter screen (707) provided inside the feed pipe (701), and a pipe cap (708) inserted into the top of the water inlet pipe (703).

5. A pipe-type electric heater according to claim 4, characterized in that: The feed pipe (701) is provided with a support plate (704) at the top. Both the support plate (704) and the baffle plate (702) are provided with a plurality of second threaded holes (705). The two connected second threaded holes (705) are internally threaded with the same second bolt (706).

6. A pipe-type electric heater according to claim 1, characterized in that: The pipe (1) is provided with a disassembly mechanism (6) on one side to facilitate the disassembly of the sealing plate (5); The disassembly mechanism (6) includes a first fixing plate (601) on one side of the sealing plate (5) and a second fixing plate (602) fixed on one side of the pipe (1). Both the first fixing plate (601) and the second fixing plate (602) are provided with multiple first threaded holes (603). The two connected first threaded holes (603) are internally threaded with the same first bolt (604).

7. A pipeline electric heater according to claim 1, characterized in that: A water outlet pipe (8) is fixedly connected to one side of the sealing plate (5).

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