Rapid heating pipeline structure

Abstract

The utility model provides a heating pipeline structure with a rapid temperature rise function, and belongs to the technical field of pipeline electric heaters. Comprising a barrel shell, a heating element is arranged in the barrel shell, an inlet is formed in one end of the barrel shell, a conveying pipe communicated with the inlet is arranged at the end opening of the inlet, and a heat energy recovery pipe set used for supplying heat to one section of the conveying pipe is arranged on the outer wall of the barrel shell. Through the heat energy recovery pipe set, part of lost heat is absorbed by water media in the water supply pipe, the second water collection ring box and the circulating water pipe, the water media absorb the heat to rise the temperature, the water suction pump is started, and water in the second water collection ring box is conveyed into the second water collection ring box through the water suction pipe, the water suction pump and the water supply pipe; the water medium flows back into the second water collecting ring box through the multiple circulating water pipes, a circulating heat transfer channel is formed, then heat in the water medium can be absorbed by the to-be-heated medium in the conveying pipe, preheating work of the to-be-heated medium in the conveying pipe is achieved, lost heat is secondarily utilized, the heat utilization rate is effectively increased, and heat dissipation loss is reduced.

Description

Technical Field

[0001] This invention provides a heating pipe structure for rapid heating, belonging to the technical field of pipe electric heaters. Background Technology

[0002] A pipeline electric heater, also known as a heated pipeline structure, converts electrical energy into heat energy to heat materials. During operation, a low-temperature fluid medium enters the inlet of the pipeline under pressure. Following a specific heat exchange channel inside the electric heating container, designed using fluid thermodynamics principles, it carries away the high-temperature heat energy generated by the heating element, causing the temperature of the heated medium to rise rapidly. The electric heater outlet then receives the high-temperature medium required by the process. The internal control system of the electric heater automatically adjusts the output power based on the temperature sensor signal at the output port, ensuring a uniform medium temperature at the output. When the heating element overheats, its independent overheat protection device immediately cuts off the heating power, preventing the heated material from overheating and causing coking, deterioration, or carbonization, which could severely damage the heating element and effectively extend the service life of the electric heater.

[0003] Existing pipe electric heaters can basically meet normal usage needs, but they still have certain shortcomings: the shell of a pipe electric heater typically includes an inner shell layer, an outer shell layer, and an insulation layer placed between the inner and outer shell layers for heat preservation. While this provides good insulation, when the heating element heats the medium, due to the nature of heat transfer, a small amount of heat inevitably leaks outward from the heat exchange channel, passing through the inner shell, insulation layer, and outer shell. This heat loss is difficult to reuse, and the heat utilization rate needs to be improved. Therefore, this invention provides a heating pipe structure for rapid heating. Utility Model Content

[0004] The technical problem solved by this invention is that a small amount of heat is lost from the heat exchange channel through the shell to the outside, and the lost heat is difficult to reuse, so the heat utilization rate needs to be improved.

[0005] To solve the technical problem, the technical solution provided by this utility model is as follows: a heating pipe structure for rapid heating, including a cylindrical shell, a heating element inside the cylindrical shell, an inlet at one end of the cylindrical shell, a connecting conveying pipe at the port of the inlet, a heat recovery pipe assembly for supplying heat to a section of the conveying pipe on the outer wall of the cylindrical shell, the heat recovery pipe assembly including a water pump, a first water collection ring box connected to the output end of the water pump on the outer wall of the cylindrical shell, a second water collection ring box connected to the input end of the water pump on the outer wall of the conveying pipe, and a plurality of circulating water pipes that are in contact with both the cylindrical shell and the outer wall of the conveying pipe between the first and second water collection ring boxes.

[0006] Furthermore, the water pump is fixedly installed on the outer wall of the cylinder shell, and a water delivery pipe that fits against the outer wall of the cylinder shell is provided between the output end of the water pump and the first water collection ring box, and a water pumping pipe that fits against both the outer wall of the cylinder shell and the outer wall of the delivery pipe is provided between the input end of the water pump and the second water collection ring box.

[0007] Furthermore, the bottom of the cylindrical shell is symmetrically provided with base frames on both sides, and the circulating water pipe passes through the base frames.

[0008] Furthermore, the cylindrical shell includes an inner shell and an outer shell, with an insulation layer provided between the inner shell and the outer shell.

[0009] Furthermore, the cylindrical shell has an outlet on the side away from the inlet, and a temperature sensing thermocouple is provided on the outlet.

[0010] Furthermore, the top of the water collection ring box is provided with a water inlet, the bottom of the water collection ring box is provided with a drain outlet, and both the water inlet and the drain outlet are provided with an opening and closing control valve.

[0011] The beneficial effects of this utility model are:

[0012] Through the heat recovery pipe assembly, some of the lost heat is absorbed by the water medium inside the water supply pipe, the second water collection ring tank, and the circulating water pipe. The water medium absorbs heat and heats up, starting the water pump. The water in the second water collection ring tank is transported back to the second water collection ring tank through the water pump and the water supply pipe. It then flows back to the second water collection ring tank through several circulating water pipes, forming a circulating heat transfer channel. When the water medium with a certain temperature flows in the water pump and circulating water pipes located on the delivery pipe, some of the heat is transferred to the outer wall of the delivery pipe and then absorbed by the medium to be heated in the delivery pipe, realizing the preheating of the medium to be heated in the delivery pipe. The lost heat is reused, effectively improving the heat utilization rate, reducing heat loss, and greatly improving the use effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a heating pipe structure for rapid heating according to the present invention. Figure 1 .

[0014] Figure 2 This is a schematic diagram of a heating pipe structure for rapid heating according to the present invention. Figure 2 .

[0015] Figure 3 This is a schematic diagram of a heating pipe structure for rapid heating according to the present invention. Figure 3 .

[0016] Figure 4 This is a plan view of a heating pipe structure for rapid heating according to the present invention.

[0017] 1. Shell; 2. Heating element; 3. Inlet; 4. Delivery pipe; 5. Heat recovery pipe assembly; 6. Water pump; 7. Water collection ring box one; 8. Water collection ring box two; 9. Circulating water pipe; 10. Water delivery pipe; 11. Water extraction pipe; 12. Base frame; 13. Inner shell; 14. Outer shell; 15. Insulation cotton layer; 16. Outlet; 17. Temperature sensing thermocouple; 18. Water inlet; 19. Drain outlet; 20. Opening and closing control valve. Detailed Implementation

[0018] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0019] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] According to the appendix Figure 1 , 4As shown: This utility model provides a heating pipe structure for rapid heating: it includes a cylindrical shell 1, a heating element 2 inside the cylindrical shell 1, an inlet 3 at one end of the cylindrical shell 1, and a connecting conveying pipe 4 at the port of the inlet 3. The cylindrical shell 1 includes an inner shell 13 and an outer shell 14, with an insulation cotton layer 15 between the inner shell 13 and the outer shell 14 to keep the temperature and effectively reduce heat loss. An outlet 16 is located on the side of the cylindrical shell 1 away from the inlet 3, and a temperature sensing thermocouple 17 is installed on the outlet 16. The temperature sensing thermocouple 17 is a known mature technology, and its specific principle and wiring method will not be described in detail here. The heating element 2 (which uses a seamless tube to increase the heat exchange time and heat conversion efficiency; the electric heating element uses nickel-chromium alloy wire to ensure service life; the heating tube has a reasonable surface load design and internal over-temperature protection to prevent surface overheating) is a known mature technology. The specific principle and wiring method will not be described in detail here. It is used to rapidly heat up the medium. Specifically, when the heating element 2 is started, the medium to be heated is transported to the cylinder shell 1 through the conveying pipe 4 and the inlet 3. After being heated by the heating element 2, the medium is rapidly heated and flows out from the outlet 16.

[0022] As per the instruction manual Figure 1-3 As shown: A heat recovery pipe assembly 5 for supplying heat to a section of the conveying pipe 4 is provided on the outer wall of the cylindrical shell 1. The heat recovery pipe assembly 5 includes a water pump 6 fixedly installed on the outer wall of the cylindrical shell 1, a water collecting ring box 7 connected to the output end of the water pump 6 on the outer wall of the cylindrical shell 1, and a water collecting ring box 8 connected to the input end of the water pump 6 on the outer wall of the conveying pipe 4. Several rings are provided between the water collecting ring box 7 and the water collecting ring box 8, which are in contact with both the outer walls of the cylindrical shell 1 and the outer wall of the conveying pipe 4. A circulating water pipe 9, a water delivery pipe 10 that fits against the outer wall of the cylinder shell 1 is provided between the output end of the water pump 6 and the first water collection ring box 7, and a water suction pipe 11 that fits against the outer wall of both the cylinder shell 1 and the delivery pipe 4 is provided between the input end of the water pump 6 and the second water collection ring box 8. Specifically, when the water pump 6 is started, the water in the second water collection ring box 8 is transported to the second water collection ring box 8 through the water suction pipe 11, the water pump 6, and the water delivery pipe 10, and then flows back to the second water collection ring box 8 through several circulating water pipes 9.

[0023] As per the instruction manual Figure 1 , 2 As shown: The bottom of the cylindrical shell 1 is symmetrically provided with a base frame 12 on both sides to support the cylindrical shell 1. The circulating water pipe 9 passes through the base frame 12 to avoid interference. The top of the water collection ring box 7 is provided with a water inlet 18 and the bottom of the water collection ring box 7 is provided with a drain outlet 19. Both the water inlet 18 and the drain outlet 19 are provided with an on / off control valve 20. Specifically, the drain outlet 19 is used to discharge the water that has been circulating between the water collection ring box 7 and the water collection ring box 8 for a period of time, and the water inlet 18 is used to add an appropriate amount of water to the water collection ring box 7.

[0024] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0025] The principle of this utility model

[0026] In use, heating element 2 is activated. The medium to be heated is conveyed through conveying pipe 4 and inlet 3 into the cylinder shell 1. After being heated by heating element 2, the medium rapidly heats up and flows out from outlet 16. When heating element 2 heats the medium, a small amount of heat inevitably leaks out through the inner shell 13, insulation layer 15, and outer shell 14. Through heat recovery pipe assembly 5, some of the lost heat is transferred to the water supply pipe 10, water collection ring box 2 8, and circulating water pipe 9 attached to the outer wall of cylinder shell 1. Then, it is absorbed by the water medium inside the water supply pipe 10, water collection ring box 2 8, and circulating water pipe 9, and the water medium absorbs the heat and heats up. When the water pump 6 is started, the water in the second water collection ring box 8 is transported to the second water collection ring box 8 through the pumping pipe 11, the pump 6, and the delivery pipe 10. The water then flows back to the second water collection ring box 8 through several circulating water pipes 9, forming a circulating heat transfer channel. When the water medium with a certain temperature flows in the pumping pipe 11 and the circulating water pipe 9 located on the delivery pipe 4, some of the heat is transferred to the outer wall of the delivery pipe 4 and then absorbed by the medium to be heated in the delivery pipe 4, thus achieving the preheating of the medium to be heated in the delivery pipe 4. The lost heat is reused, effectively improving the heat utilization rate, reducing heat loss, and greatly improving the performance.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A heating pipe structure for rapid heating, comprising a cylindrical shell (1), wherein a heating element (2) is disposed inside the cylindrical shell (1), and an inlet (3) is provided at one end of the cylindrical shell (1), characterized in that: The port of the inlet (3) is provided with a connected conveying pipe (4). The outer wall of the cylindrical shell (1) is provided with a heat recovery pipe assembly (5) for supplying heat to a section of the conveying pipe (4). The heat recovery pipe assembly (5) includes a water pump (6). The outer wall of the cylindrical shell (1) is provided with a water collection ring box one (7) connected to the output end of the water pump (6). The outer wall of the conveying pipe (4) is provided with a water collection ring box two (8) connected to the input end of the water pump (6). Between the water collection ring box one (7) and the water collection ring box two (8), there are several circulating water pipes (9) that are in contact with both the outer wall of the cylindrical shell (1) and the outer wall of the conveying pipe (4).

2. The heating pipe structure for rapid heating according to claim 1, characterized in that: The water pump (6) is fixedly installed on the outer wall of the cylindrical shell (1). A water delivery pipe (10) is provided between the output end of the water pump (6) and the first water collection ring box (7) and is in contact with the outer wall of the cylindrical shell (1). A water pumping pipe (11) is provided between the input end of the water pump (6) and the second water collection ring box (8) and is in contact with the outer walls of both the cylindrical shell (1) and the delivery pipe (4).

3. The heating pipe structure for rapid heating according to claim 1, characterized in that: The bottom of the cylindrical shell (1) is symmetrically provided with a base frame (12), and the circulating water pipe (9) passes through the base frame (12).

4. The heating pipe structure for rapid heating according to claim 1, characterized in that: The cylindrical shell (1) includes an inner shell (13) and an outer shell (14), with a thermal insulation layer (15) provided between the inner shell (13) and the outer shell (14).

5. The heating pipe structure for rapid heating according to claim 1, characterized in that: The cylindrical shell (1) has an outlet (16) on the side away from the inlet (3), and a temperature sensing thermocouple (17) is provided on the outlet (16).

6. The heating pipe structure for rapid heating according to claim 1, characterized in that: The top of the water collection ring box (7) is provided with a water inlet (18), and the bottom of the water collection ring box (7) is provided with a drain outlet (19). Both the water inlet (18) and the drain outlet (19) are provided with an opening and closing control valve (20).

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