Digital self-resistance type pipeline heat treatment device
Through digital self -resistant pipeline thermal treatment devices, efficient heating is used to use pipeline self -resistance heating power and nitrogen heating units, solving the problem of low heating efficiency of existing drying devices, achieve efficient and precise heating effects, and significantly improve production efficiency.
Patent Information
- Application Number
- CN202323580383.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The existing drying devices have low heating efficiency, difficult to reach 400-500℃, and the equipment length and speed cannot meet the needs of efficient production.
The digital self -resistant pipeline thermal treatment device is adopted to achieve efficient heating through the pipeline self -resistance heating power and nitrogen heating unit. The temperature control accuracy can reach ± 0.1 ° C, the heating length of the pipe can reach 100,000mm, and the feed speed reaches 30 meters/minute.
The efficient heating, high temperature control accuracy, the equipment length and speed meet the high -efficiency production needs, the heating speed is fast, and the production efficiency is significantly improved.
Smart Images
Figure CN222412025U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a digital self-resistance pipeline heat treatment device, belonging to the field of heat treatment. Background Art
[0002] Aramid fiber is a linear polymer composed of aromatic groups and amide groups. It has excellent mechanical properties, stable chemical structure, ideal mechanical properties, ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, wear resistance and other excellent properties. The main advantages of aramid fiber are high strength and high modulus. Its tensile strength is 6 times that of steel wire, its tensile modulus is 2 to 3 times that of steel wire or glass fiber, and its density is only one-fifth of that of steel wire. It is mainly used in safety protection, bulletproof, rubber product reinforcement, high-strength cable and asbestos friction material replacement. Aramid fiber has excellent heat resistance, flame resistance and insulation, and is mainly used in fireproof materials and mechanical damage prevention.
[0003] With the development of aramid yarn and other polymer materials, the output has increased year by year, and the scope of use has gradually expanded. The production process of polymer materials must be dried. At present, most of the mainstream drying devices on the market are heated by natural gas combustion hot air. The heating temperature reaches 300℃ in 3 hours. The temperature is too low to reach the heat treatment temperature (400-500℃), and the drying effect is poor. Due to the poor heat dissipation and insulation conditions of natural gas combustion hot air heating equipment, the drying equipment length can only be 6000mm, the drying speed is about 20 meters / minute, and the heating efficiency and output are generally low. Utility Model Content
[0004] In order to overcome the defects of the prior art, the utility model provides a digital self-resistance pipeline heat treatment device. The technical solution of the utility model is:
[0005] A digital self-resistance pipeline heat treatment device comprises a frame and a box body installed on the frame, a cover plate is installed on the top of the box body, a drying system is installed inside the box body, the box body comprises an incoming line box body and an outgoing line box body connected to the incoming line box body, the incoming line box body and the outgoing line box body integrally form a box structure, the drying system comprises a pipeline, a pipeline insulation unit, a pipeline support frame, a pipeline self-resistance heating power supply, a nitrogen heating unit, a nitrogen self-resistance heating power supply and a temperature measuring unit, a pipeline support frame is installed inside the box body, the pipelines are several and arranged along the length direction of the box body, each of the pipelines is installed on the pipeline support frame, the temperature measuring unit is installed at the pipeline and the nitrogen heating unit, the pipeline self-resistance heating power supply is bolted to the pipeline incoming line terminal through a connecting cable to heat the pipeline; the nitrogen self-resistance heating power supply is electrically connected to the nitrogen heating unit through a connecting cable, and the pipeline insulation unit is coated on the periphery of the pipeline.
[0006] The temperature measuring unit is an armored thermocouple, and the temperature signal measured by the temperature measuring unit is fed back to the pipeline self-resistance heating power supply and the nitrogen self-resistance heating power supply to control the heating temperature of the pipeline and the nitrogen heating unit.
[0007] The pipeline comprises an upper pipeline group and a lower pipeline group. The lower pipeline group is located at the lower part of the upper pipeline group and is arranged in parallel with the upper pipeline group.
[0008] The upper layer pipeline group and the lower layer pipeline group include the same number of pipelines, which are both 12.
[0009] The incoming line box includes an incoming line shell, an incoming line heat sink, an incoming line side support plate, an incoming line insulating resin plate, an incoming line conductive block, an incoming line conductive connecting plate, an incoming line terminal and an incoming line terminal protective plate. The incoming line heat sink is installed at the incoming line end of the incoming line shell, two oppositely arranged incoming line insulating resin plates are installed inside the incoming line shell, and an incoming line side support plate is installed on each of the incoming line insulating resin plates. The incoming line conductive block is welded to the incoming line end of the pipeline, and all pipelines are installed on the incoming line conductive connecting plate and electrically connected to the incoming line conductive connecting plate; the incoming line terminal is installed on the incoming line conductive block; and an incoming line terminal protective plate for supporting the incoming line shell is also installed inside the incoming line shell.
[0010] The outlet box includes an outlet shell, an outlet heat sink, an outlet side support plate, an outlet insulating resin plate, an outlet conductive block, an outlet conductive connecting plate and an outlet terminal guard plate. The outlet heat sink is installed at the outlet end of the outlet shell, two outlet insulating resin plates arranged opposite to each other are installed inside the outlet shell, an outlet side support plate is installed on each of the outlet insulating resin plates, the outlet conductive block is welded to the outlet end of the pipeline, all pipelines are installed on the outlet conductive connecting plate and are electrically connected to the outlet conductive connecting plate; an outlet terminal guard plate is also installed inside the outlet shell to support the outlet shell.
[0011] The incoming line insulating resin plate and the incoming line side support plate, as well as the outgoing line side support plate and the outgoing line insulating resin plate are all connected together by bolts.
[0012] The utility model has the advantages of using a pipeline as the heating body and a self-resistance heating power supply, the temperature control accuracy can reach ±0.1°C, the pipeline heating length can reach 10000mm, the feeding speed can reach 30 meters / minute, the heating speed is fast, and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the main structure of the utility model.
[0014] Figure 2 yes Figure 1 Left view of .
[0015] Figure 3 yes Figure 1 Schematic diagram of the structure of the central incoming line box.
[0016] Figure 4 yes Figure 1 Right view of .
[0017] Figure 5 yes Figure 1 Schematic diagram of the drying system.
[0018] Figure 6 yes Figure 1 Schematic diagram of the structure of the center outlet box. DETAILED DESCRIPTION
[0019] The present invention is further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are merely exemplary and do not constitute any limitation to the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solution of the present invention may be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements fall within the scope of protection of the present invention.
[0020] See also Figures 1 to 6The utility model relates to a digital self-resistance pipeline heat treatment device, comprising a frame 1 and a box body 2 installed on the frame 1, wherein the frame 1 is welded by channel steel; a cover plate 12 is installed on the top of the box body 2, and a drying system is installed inside the box body 2, the box body 2 comprises an incoming line box body 3 and an outgoing line box body 4 connected to the incoming line box body 3, the incoming line box body 3 and the outgoing line box body 4 form a box structure as a whole, the drying system comprises a pipeline 20, a pipeline insulation unit 21, a pipeline support frame 22, a pipeline self-resistance heating power supply 23, a nitrogen heating unit 24, a nitrogen self-resistance heating power supply 25 and a temperature measuring unit 13, a pipeline support frame 22 is installed inside the box body 2, the pipeline 20 is a plurality of pipelines, which are arranged along the length direction of the box body 2, and each of the pipelines The pipeline 20 is installed on the pipeline support frame 22, and the temperature measuring unit 13 is installed at the pipeline 20 and the nitrogen heating unit 24. The pipeline self-resistance heating power supply 23 is bolted to the pipeline 20 inlet terminal terminal 10 through a connecting cable to heat the pipeline 20; the nitrogen self-resistance heating power supply 25 is electrically connected to the nitrogen heating unit through a connecting cable, and the nitrogen heating unit 24 heats the nitrogen before entering the pipeline 24 (the external gas source enters the nitrogen heating unit through the nitrogen pipeline and supplies gas to the pipeline 24 after heating); the pipeline 20 is coated with a pipeline insulation unit 21. Through the wrapping of the pipeline insulation unit, the temperature difference between the upper, lower, left and right surface temperatures of the outer surface of the equipment (except the inlet and outlet end faces) and the ambient temperature is ≤15°C.
[0021] The temperature measuring unit 13 is an armored thermocouple. The temperature signal measured by the temperature measuring unit 13 is fed back to the pipeline self-resistance heating power supply 23 and the nitrogen self-resistance heating power supply 25 to control the heating temperature of the pipeline 20 and the nitrogen heating unit 24. The temperature control accuracy can reach ±0.1°C.
[0022] The pipeline 20 includes an upper pipeline group and a lower pipeline group. The lower pipeline group is located below the upper pipeline group and is arranged in parallel with the upper pipeline group.
[0023] The upper layer pipeline group and the lower layer pipeline group include the same number of pipelines, which are both 12.
[0024] The incoming line box 3 includes an incoming line shell, an incoming line heat sink 5, an incoming line side support plate 6, an incoming line insulating resin plate 7, an incoming line conductive block 8, an incoming line conductive connecting plate 9, an incoming line terminal 10 and an incoming line terminal guard plate 11. The incoming line heat sink 5 is installed at the incoming line end of the incoming line shell, and two oppositely arranged incoming line insulating resin plates 7 are installed inside the incoming line shell. An incoming line side support plate 6 is installed on each of the incoming line insulating resin plates 7. The incoming line conductive block 8 is welded to the incoming line end of the pipe 20, and all the pipes 20 are installed on the incoming line conductive connecting plate 9 and are electrically connected to the incoming line conductive connecting plate 9; the incoming line terminal 10 is installed on the incoming line conductive block 8; and an incoming line terminal guard plate 11 is also installed inside the incoming line shell to support the incoming line shell.
[0025] The outlet box includes an outlet shell, an outlet heat sink 14, an outlet side support plate 15, an outlet insulating resin plate 16, an outlet conductive block 17, an outlet conductive connecting plate 18, and an outlet terminal guard plate 19. The outlet heat sink 14 is installed at the outlet end of the outlet shell, and two oppositely arranged outlet insulating resin plates 16 are installed inside the outlet shell. An outlet side support plate 15 is installed on each of the outlet insulating resin plates 16. The outlet conductive block 17 is welded to the outlet end of the pipe 20, and all the pipes 20 are installed on the outlet conductive connecting plate 18 and electrically connected to the outlet conductive connecting plate 18; an outlet terminal guard plate 19 is also installed inside the outlet shell to support the outlet shell.
[0026] The incoming line insulating resin plate 7 and the incoming line side support plate 6, as well as the outgoing line side support plate 15 and the outgoing line insulating resin plate 16 are connected together by bolts.
[0027] The working principle of the utility model is:
[0028] During operation, the pipeline self-resistance heating power supply 23 is connected to the pipeline 20 through a cable, and the nitrogen self-resistance heating power supply is connected to the nitrogen heating unit 24 through a cable. The pipeline heating temperature is set to 500°C and the nitrogen pipeline heating temperature is set to 200°C respectively. The heating is started, and the temperature measuring unit 13 feeds back the pipeline and nitrogen pipeline temperatures in real time. When heated to the set temperature, it enters the long-term insulation mode, that is, the pipeline temperature is always maintained at 500°C and the nitrogen pipeline temperature is always maintained at 200°C. At this time, polymer materials such as aramid yarn can enter the pipeline 20 from the inlet box 3, and exit from the outlet box 4 after heating, completing the heating treatment.
[0029] The pipeline 20 is placed on a pipeline support device 22. The straightness of the pipeline is very important for the product production quality. It is necessary to install a pipeline support frame 22 every 500-1000mm to fix the pipeline 20. Each pipeline support frame 22 can independently adjust the support position, which not only meets the expansion and contraction requirements of the pipeline after heating, but also meets the bending deformation generated after heating, so that it is controlled within a very small range.
[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A digital self-resistance pipeline heat treatment device, characterized in that: It comprises a frame and a box body installed on the frame, a cover plate is installed on the top of the box body, a drying system is installed inside the box body, the box body comprises an incoming line box body and an outgoing line box body connected to the incoming line box body, the incoming line box body and the outgoing line box body integrally form a box structure, the drying system comprises a pipeline, a pipeline insulation unit, a pipeline support frame, a pipeline self-resistance heating power supply, a nitrogen heating unit, a nitrogen self-resistance heating power supply and a temperature measuring unit, a pipeline support frame is installed inside the box body, the pipelines are several and arranged along the length direction of the box body, each of the pipelines is installed on the pipeline support frame, the temperature measuring unit is installed at the pipeline and the nitrogen heating unit, the pipeline self-resistance heating power supply is bolted to the pipeline inlet terminal terminal through a connecting cable to heat the pipeline; the nitrogen self-resistance heating power supply is electrically connected to the nitrogen heating unit through a connecting cable, and the pipeline insulation unit is coated on the periphery of the pipeline.
2. The digital self-resistance pipeline heat treatment device according to claim 1 is characterized in that: The temperature measuring unit is an armored thermocouple, and the temperature signal measured by the temperature measuring unit is fed back to the pipeline self-resistance heating power supply and the nitrogen self-resistance heating power supply to control the heating temperature of the pipeline and the nitrogen heating unit.
3. The digital self-resistance pipeline heat treatment device according to claim 1 or 2, characterized in that: The pipeline comprises an upper pipeline group and a lower pipeline group. The lower pipeline group is located at the lower part of the upper pipeline group and is arranged in parallel with the upper pipeline group.
4. The digital self-resistance pipeline heat treatment device according to claim 3 is characterized in that: The upper layer pipeline group and the lower layer pipeline group include the same number of pipelines, which are both 12.
5. The digital self-resistance pipeline heat treatment device according to claim 1 is characterized in that: The incoming line box includes an incoming line shell, an incoming line heat sink, an incoming line side support plate, an incoming line insulating resin plate, an incoming line conductive block, an incoming line conductive connecting plate, an incoming line terminal and an incoming line terminal protective plate. The incoming line heat sink is installed at the incoming line end of the incoming line shell, two oppositely arranged incoming line insulating resin plates are installed inside the incoming line shell, and an incoming line side support plate is installed on each of the incoming line insulating resin plates. The incoming line conductive block is welded to the incoming line end of the pipeline, and all pipelines are installed on the incoming line conductive connecting plate and electrically connected to the incoming line conductive connecting plate; the incoming line terminal is installed on the incoming line conductive block; and an incoming line terminal protective plate for supporting the incoming line shell is also installed inside the incoming line shell.
6. The digital self-resistance pipeline heat treatment device according to claim 5 is characterized in that: The outlet box includes an outlet shell, an outlet heat sink, an outlet side support plate, an outlet insulating resin plate, an outlet conductive block, an outlet conductive connecting plate and an outlet terminal guard plate. The outlet heat sink is installed at the outlet end of the outlet shell, two outlet insulating resin plates arranged opposite to each other are installed inside the outlet shell, an outlet side support plate is installed on each of the outlet insulating resin plates, the outlet conductive block is welded to the outlet end of the pipeline, all pipelines are installed on the outlet conductive connecting plate and are electrically connected to the outlet conductive connecting plate; an outlet terminal guard plate is also installed inside the outlet shell to support the outlet shell.
7. The digital self-resistance pipeline heat treatment device according to claim 6 is characterized in that: The incoming line insulating resin plate and the incoming line side support plate, as well as the outgoing line side support plate and the outgoing line insulating resin plate are all connected together by bolts.