Anti-overheating biphenyl furnace heating device

Abstract

The utility model relates to the technical field of biphenyl heating, in particular to an anti-overheating biphenyl furnace heating device which comprises a furnace body, a heating pipe, a heating mechanism and an anti-overheating mechanism, the heating pipe is fixedly arranged in the furnace body, a gap is formed between the furnace body and the heating pipe, and the heating mechanism is arranged in the heating pipe and used for heating biphenyl in the heating pipe; the overheating prevention mechanism comprises a water tank and a condensation pipe, the water tank is fixedly arranged on one side of the furnace body, a spiral groove is formed in the peripheral wall of the heating pipe, one end of the condensation pipe is communicated with the water tank, the other end of the condensation pipe is wound in the spiral groove of the heating pipe and connected with the inner wall of the spiral groove, and a limiting mechanism is arranged on the peripheral wall of the heating pipe and used for limiting the condensation pipe. Through close contact of the condensation pipe and the heating pipe and circulating heat dissipation of water, redundant heat of the heating pipe can be effectively taken away in time, biphenyl is prevented from being overheated, it is guaranteed that biphenyl works within the safe temperature range, and production stability and safety are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of biphenyl heating technical field, specifically a kind of overheat-preventing biphenyl furnace heating device. BACKGROUND

[0002] Biphenyl, as a high-temperature heat-conducting medium with excellent performance, plays a key role in many industrial fields such as chemical industry, electronics and materials. It has a high boiling point, good thermal stability and low vapor pressure, and can stably transfer heat in a high-temperature environment, so it is widely used in heating processes that require precise temperature control.

[0003] Traditional resistance wire heating type biphenyl furnace uses resistance wire as heating element, directly winding resistance wire outside or built-in heating tube. Heat is generated by passing current through resistance wire, which in turn heats biphenyl. Temperature changes are monitored by temperature sensors. When the temperature reaches the overheat value, stop heating the resistance wire to prevent overheating.

[0004] However, during the heating process, after the resistance wire stops heating, the temperature of the resistance wire is too high, and the temperature cannot be quickly reduced in a short time. The residual heat emitted by the resistance wire continues to heat the biphenyl, causing the actual temperature of the biphenyl to rise, resulting in overheating and damage. SUMMARY

[0005] The utility model aims to solve one of the technical problems existing in the prior art. To this end, the utility model provides an overheat-preventing biphenyl furnace heating device. The biphenyl furnace solves the problem of overheating caused by the residual heat emitted by the resistance wire heating the biphenyl.

[0006] To achieve the above-mentioned purpose, according to the first aspect of the utility model, an overheat-preventing biphenyl furnace heating device is provided, which comprises a furnace body, a heating tube, a heating mechanism and an overheat-preventing mechanism. The heating tube is fixedly arranged in the furnace body, and an air gap is provided between the furnace body and the heating tube. The heating mechanism is arranged in the heating tube and is used for heating the biphenyl in the heating tube. The overheat-preventing mechanism comprises a water tank and a condenser tube. The water tank is fixedly arranged on one side of the furnace body. A spiral groove is provided on the outer peripheral wall of the heating tube. One end of the condenser tube is in communication with the water tank, and the other end is wound in the spiral groove of the heating tube and is in contact with the inner wall of the spiral groove. A limiting mechanism is provided on the outer peripheral wall of the heating tube. The limiting mechanism is used for limiting the condenser tube.

[0007] As a further aspect of the utility model, the heating mechanism comprises a power supply and an electric heating rod. The power supply is fixedly arranged on the outer side wall of the furnace body. The output end of the power supply is connected with the electric heating rod. The electric heating rod is arranged in the heating tube.

[0008] As a further scheme of the utility model: the limiting mechanism includes a limiting seat, a limiting plate and a spring, the limiting seat is fixedly arranged on the outer peripheral wall of the heating pipe, the limiting seat is arranged on both sides of the spiral groove, the limiting plate is arranged in the limiting seat on one side, the limiting plate is internally connected with the spring, the limiting plate is arranged above the spiral groove and is used for limiting the condensing pipe.

[0009] As a further scheme of the utility model: the top side wall of the limiting plate is provided with a circular surface.

[0010] As a further scheme of the utility model: the side wall of the limiting seat close to the extending end of the limiting plate is provided with a clamping groove, and the clamping groove is used for fixing the limiting plate.

[0011] As a further scheme of the utility model: the side wall of the limiting plate is provided with a guide column, the guide column is connected with a pull ring by penetrating the limiting seat, and the spring is sleeved on the guide column.

[0012] As a further scheme of the utility model: the heating pipe is provided with an outflow pipe and a reflux pipe, and the outflow pipe and the reflux pipe extend to the top of the furnace body.

[0013] As a further scheme of the utility model: a temperature sensor is arranged at the gap between the furnace body and the heating pipe.

[0014] As a further scheme of the utility model: a glass window is arranged on one side of the furnace body, and the glass window is internally connected with the heating pipe.

[0015] As a further scheme of the utility model: a scale line is fixedly arranged on the outer side wall of the glass window.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model can effectively take away the excessive heat of the heating pipe in time, prevent the overheat of the biphenyl, ensure the work of the biphenyl in the safe temperature range, and guarantee the stability and safety of production through the close contact of the condensing pipe and the heating pipe and the circulating heat dissipation of water.

[0018] 2. When the condensing pipe is installed, the limiting plate is extruded, the limiting plate moves to the limiting seat by compressing the spring, the limiting plate resets to limit the condensing pipe under the spring force after installation, the installation and disassembly of the condensing pipe are facilitated, the position of the condensing pipe in the spiral groove is stabilized, and good heat dissipation effect is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a kind of anti-overheat biphenyl furnace heating device three-dimensional structure schematic diagram.

[0020] Fig. 2 This is a schematic diagram of the heating element installation.

[0021] Fig. 3 This is a schematic diagram of the installation of the limit mechanism.

[0022] Fig. 4 A sectional view of the installation of the limit mechanism.

[0023] The attached diagram is labeled as follows: 1. Furnace body; 2. Heating tube; 21. Spiral groove; 22. Outflow pipe; 23. Return pipe; 3. Power supply; 31. Heating rod; 4. Water tank; 41. Condenser; 5. Limit seat; 51. Limit plate; 52. Spring; 53. Guide post; 54. Pull ring; 6. Glass window; 61. Scale line; 7. Temperature sensor. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figs. 1 to 4 As shown, an overheat protection device for a biphenyl furnace includes a furnace body 1, a heating tube 2, a heating mechanism, and an overheat protection mechanism. The heating tube 2 is fixedly installed inside the furnace body 1, with a gap between the furnace body 1 and the heating tube 2. The heating mechanism is installed inside the heating tube 2 to heat the biphenyl inside the heating tube 2. The overheat protection mechanism includes a water tank 4 and a condenser tube 41. The water tank 4 is fixedly installed on one side of the furnace body 1. A spiral groove 21 is provided on the outer peripheral wall of the heating tube 2. One end of the condenser tube 41 is connected to the water tank 4, and the other end is wound around the spiral groove 21 of the heating tube 2 and connected to the inner wall of the spiral groove 21. A limiting mechanism is provided on the outer peripheral wall of the heating tube 2 to limit the condenser tube 41. Through the close contact between the condenser tube 41 and the heating tube 2 and the heat dissipation of water circulation, excess heat from the heating tube 2 can be effectively removed in a timely manner, preventing the biphenyl from overheating and ensuring that the biphenyl operates within a safe temperature range, thus guaranteeing the stability and safety of production.

[0026] The heating mechanism includes a power supply 3 and a heating rod 31. The power supply 3 is fixedly mounted on the outer wall of the furnace body 1, and its output end is connected to the heating rod 31. The heating rod 31 is disposed inside the heating tube 2. The power supply 3, fixed to the outer wall of the furnace body 1, outputs electrical energy to power the heating rod 31 inside the heating tube 2. After being energized, the heating rod 31 generates heat, directly heating the biphenyl.

[0027] The limiting mechanism comprises a limiting seat 5, a limiting plate 51 and a spring 52, the limiting seat 5 is fixedly arranged on the outer peripheral wall of the heating pipe 2, the limiting seat 5 is arranged on both sides of the spiral groove 21, the limiting plate 51 is arranged in the limiting seat 5 on one side, the limiting plate 51 is connected with the spring 52 in the limiting seat 5, and the limiting plate 51 is arranged above the spiral groove 21 and used for limiting the condensing pipe 41.

[0028] The limiting plate 51 is connected in the limiting seat 5 on both sides of the outer peripheral wall of the heating pipe 2 through the spring 52. When the condensing pipe 41 is installed, the limiting plate 51 is pressed, the limiting plate 51 moves into the limiting seat 5 by compressing the spring 52, after installation, the limiting plate 51 is reset to limit the condensing pipe 41 under the elastic force of the spring 52. The installation and disassembly of the condensing pipe 41 are facilitated, the position of the condensing pipe 41 in the spiral groove 21 is stable, good heat dissipation effect is ensured, a plurality of limiting mechanisms can be arranged at the same time, the condensing pipe 41 is limited, and the condensing pipe 41 always adheres to the outer peripheral wall of the heating pipe 2.

[0029] An arc surface is arranged on the top side wall of the limiting plate 51. When the condensing pipe 41 is installed, the arc surface plays a guiding role, so that the condensing pipe 41 is more easily pressed to enter the spiral groove 21 and the installation resistance is reduced.

[0030] A clamping groove is arranged on the side wall of the limiting seat 5 close to the extending end of the limiting plate 51, and the clamping groove is used for fixing the limiting plate 51.

[0031] A guide column 53 is arranged on the side wall of the limiting plate 51, the guide column 53 is connected with a pull ring 54 penetrating through the limiting seat 5, and the spring 52 is sleeved on the guide column 53. The pull ring 54 is pulled, the limiting plate 51 is moved through the guide column 53, the disassembly of the condensing pipe 41 is more convenient, and the condensing pipe 41 is convenient to maintain and replace.

[0032] The heating pipe 2 is provided with an outflow pipe 22 and a return pipe 23, and the outflow pipe 22 and the return pipe 23 extend to the top of the furnace body 1. The heated biphenyl in the heating pipe 2 flows out through the outflow pipe 22 and is transported to equipment or a process needing heating, after the heating task is completed, the biphenyl returns to the heating pipe 2 through the return pipe 23, and circulation heating is realized.

[0033] A temperature sensor 7 is arranged at the gap between the furnace body 1 and the heating pipe 2. The temperature at the gap between the furnace body 1 and the heating pipe 2 is monitored in real time, and a temperature signal is transmitted to a control system, so that the temperature condition of the biphenyl is known in time. Temperature data is provided for the anti-overheating mechanism, real-time monitoring and accurate control of the temperature of the biphenyl are realized.

[0034] The furnace body 1 is provided with a glass window 6 on one side, the glass window 6 is connected with the inside of the heating pipe 2, and a scale line 61 is fixedly arranged on the outer wall of the glass window 6. The flow state and color of the biphenyl in the heating pipe 2 can be directly observed through the glass window 6, and the working state of the biphenyl is known. The operator can conveniently master the biphenyl in real time, find the abnormality in time, and guarantee the production safety; the scale line 61 is marked on the outer wall of the glass window 6, the liquid level value can be read through the scale line 61 according to the liquid level height of the biphenyl in the heating pipe 2, and whether the amount of the biphenyl is sufficient is judged.

[0035] The working principle of the utility model is: when the anti-overheating biphenyl furnace heating device starts, the power supply 3 supplies power for the electric heating rod 31, the electric heating rod 31 starts to heat, and the biphenyl in the heating pipe 2 is heated. The heated biphenyl temperature rises and circulates in the heating pipe 2, and the circulation of the biphenyl is realized through the outflow pipe 22 and the reflux pipe 23 to meet the heating demand in the production process.

[0036] In the heating process, the temperature sensor 7 monitors the temperature at the gap between the furnace body 1 and the heating pipe 2 in real time, that is, indirectly monitors the temperature of the biphenyl. Once the temperature of the biphenyl is too high, the anti-overheating mechanism starts to work. The water in the water tank 4 enters the spiral groove 21 through the condensing pipe 41, the condensing pipe 41 is tightly wound in the spiral groove 21 of the heating pipe 2 and is connected with the inner wall of the spiral groove 21, the high-temperature heating pipe 2 transmits heat to the water in the condensing pipe 41, the temperature of the water rises after absorbing heat, thereby reducing the temperature of the heating pipe 2, and preventing the biphenyl from overheating.

[0037] The above embodiment is only used to illustrate the technical method of the utility model and is not limited, although the utility model is described in detail with reference to the preferred embodiment, those skilled in the art should understand that the technical method of the utility model can be modified or replaced, without departing from the spirit and scope of the technical method of the utility model.

Claims

1. An anti-overheating biphenyl furnace heating device, comprising a furnace body (1), a heating pipe (2), a heating mechanism and an anti-overheating mechanism, the heating pipe (2) is fixedly arranged in the furnace body (1), a gap is arranged between the furnace body (1) and the heating pipe (2), and the heating mechanism is arranged in the heating pipe (2) and used for heating biphenyl in the heating pipe (2). characterized in that The anti-overheating mechanism comprises a water tank (4) and a condensing pipe (41), the water tank (4) is fixedly arranged on one side of the furnace body (1), a spiral groove (21) is arranged on the outer peripheral wall of the heating pipe (2), one end of the condensing pipe (41) is communicated with the water tank (4), the other end of the condensing pipe (41) is wound in the spiral groove (21) of the heating pipe (2) and is in contact with the inner wall of the spiral groove (21), and a limiting mechanism is arranged on the outer peripheral wall of the heating pipe (2) and used for limiting the condensing pipe (41).

2. A device for heating a furnace for the production of polycyclic aromatic hydrocarbons, according to claim 1, characterized in that, The heating mechanism comprises a power supply (3) and an electric heating rod (31), the power supply (3) is fixedly arranged on the outer side wall of the furnace body (1), the output end of the power supply (3) is connected with the electric heating rod (31), and the electric heating rod (31) is arranged in the heating pipe (2).

3. A device for heating a furnace for the production of polycarbonates according to claim 1, characterized in that The limiting mechanism comprises a limiting seat (5), a limiting plate (51) and a spring (52), the limiting seat (5) is fixedly arranged on the outer peripheral wall of the heating pipe (2), the limiting seat (5) is arranged on both sides of the spiral groove (21), the limiting plate (51) is arranged in the limiting seat (5) on one side, the spring (52) is connected between the limiting plate (51) and the limiting seat (5) on the inner side, the limiting plate (51) is arranged above the spiral groove (21) and used for limiting the condensing pipe (41).

4. A device for heating a furnace for the production of polycyclic aromatic hydrocarbons according to claim 3, characterized in that An arc surface is arranged on the top side wall of the limiting plate (51).

5. A device for heating a furnace for the production of polycarbonates according to claim 3, wherein A clamping groove is arranged on the side wall of the limiting seat (5) close to the extending end of the limiting plate (51), and the clamping groove is used for fixing the limiting plate (51).

6. A device for heating a furnace for the production of polycyclic aromatic hydrocarbons, according to claim 3, characterized in that, A guide column (53) is arranged on the side wall of the limiting plate (51), the guide column (53) penetrates through the limiting seat (5) and is connected with a pull ring (54), and the spring (52) is sleeved on the guide column (53).

7. The overheat prevention biphenyl furnace heating device according to claim 1, characterized by An outflow pipe (22) and a reflux pipe (23) are arranged on the heating pipe (2), and the outflow pipe (22) and the reflux pipe (23) extend to the top of the furnace body (1).

8. A device for heating a furnace for the production of polycyclic aromatic hydrocarbons, according to claim 1, characterized in that, A temperature sensor (7) is arranged at the gap between the furnace body (1) and the heating pipe (2).

9. The overheat prevention biphenyl furnace heating device according to claim 1, characterized by A glass window (6) is arranged on one side of the furnace body (1), and the glass window (6) is connected with the inside of the heating pipe (2).

10. A device for heating a furnace for the production of polycyclic aromatic hydrocarbons, according to claim 9, characterized in that, A scale line (61) is fixedly arranged on the outer side wall of the glass window (6).

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