Roller heating furnace with heat preservation function

Abstract

The utility model discloses a roller heating furnace with a heat preservation function, which relates to the technical field of heating furnaces and comprises a roller heating furnace body. An auxiliary heat supply pipe surrounds the inner wall of the roller heating furnace body, a heat supply box is fixedly connected to one side of the roller heating furnace body, a heat conduction medium is contained in the heat supply box, and an electric heating rod is fixedly installed at the bottom of the heat supply box. According to the roller heating furnace, the auxiliary heat supply pipe surrounding the inner wall of the roller heating furnace body is arranged, in the working process of the roller heating furnace body, diffused temperature is transmitted to the heat-conducting medium in the auxiliary heat supply pipe to be stored, and due to the fact that the specific heat capacity of the heat-conducting medium oil is higher, more heat can be stored relative to air; therefore, all heat cannot be released even if the heating furnace door is opened when a sample is taken out, and in the operation process, the heat-conducting medium in the heat supply box can be heated by controlling the electric heating rod to work, and heat flow is fed into the auxiliary heat supply pipe by utilizing the driving assembly to carry out auxiliary heat preservation.

Description

Technical Field

[0001] The utility model relates to the technical field of roller heating furnaces, in particular to a roller heating furnace with a heat preservation function. Background Art

[0002] The roller heating furnace is a special equipment for heating and aging drilling fluid. It is also widely used in the quality inspection of drilling fluid additive products. The key to the roller heating furnace is the uniformity of internal temperature distribution and the authenticity of displayed temperature, which directly affects the reproducibility of product testing indicators and the accuracy of quality judgment.

[0003] The heating roller transfers heat to the object by heat conduction. When the object contacts the heating roller, the heat on the roller surface is transferred to the object by heat conduction. However, the existing roller heating furnace usually does not have a heat preservation function. The temperature in the roller heating furnace body drops significantly in the interval between two inspections, so that it takes a long time to preheat when it is used next time, which affects the heating efficiency and needs to be improved urgently. Summary of the invention

[0004] The purpose of the utility model is to provide a roller heating furnace with a heat preservation function to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A roller heating furnace with a heat preservation function comprises a roller heating furnace body; an auxiliary heating pipe is surrounded by the inner wall of the roller heating furnace body, a heating box is fixedly connected to one side of the roller heating furnace body, a heat conducting medium is contained in the heating box, an electric heating rod is fixedly installed at the bottom of the heating box, one end of the auxiliary heating pipe is fixedly connected to an input pipe, an end of the auxiliary heating pipe away from the input pipe is fixedly connected to an output pipe, the output pipe is located below the input pipe, an end of the output pipe away from the auxiliary heating pipe is communicated with the interior of the heating box, a rotating cylinder is embedded in the interior of the heating box, a reflux pipe communicating with the interior of the heating box is arranged at the bottom of the rotating cylinder, an end of the input pipe away from the auxiliary heating pipe extends to the interior of the rotating cylinder, and a driving component for providing a circulating flow of the heat conducting medium is arranged on one side of the heating box.

[0007] By adopting the above technical scheme, an auxiliary heating pipe is arranged around the inner wall of the roller heating furnace body. During the operation of the roller heating furnace body, the target is heated by the continuous rotation of the high-temperature roller, which will increase the temperature in the furnace, and then the diffused temperature is transferred to the heat-conducting medium in the auxiliary heating pipe for storage. Since the heat-conducting medium oil has a higher specific heat capacity, it can store more heat relative to air, so that even if the heating furnace door is opened when taking out the sample, all the heat will not be released, thereby achieving insulation in the furnace. During operation, the electric heating rod can be controlled to heat the heat-conducting medium in the heating box, and the drive component can be used to send the heat flow into the auxiliary heating pipe for auxiliary insulation.

[0008] A further improvement of the technical solution of the utility model is that: the driving component includes a piston cylinder fixedly connected to one side of the heating box, the piston cylinder is communicated with the interior of the heating box, a first piston plate is slidably connected between the inner walls of the piston cylinder, a control cylinder is fixedly connected between the inner walls of the return pipe and the output pipe, the control cylinder is configured as a cylindrical structure with an opening on one side, and a one-way conduction component is arranged inside the control cylinder, and the one-way conduction component is used to enable the heat-conducting medium to conduct only one way in the pipeline.

[0009] By adopting the above technical solution, the first piston plate performs piston motion in the piston cylinder, and cooperates with the one-way conductive component to enable the heat transfer medium to circulate between the auxiliary heating pipe, the transfer cylinder and the heating box.

[0010] A further improvement of the technical solution of the utility model is that the drive assembly also includes a mounting plate, the mounting plate is fixedly connected to one side of the roller heating furnace body close to the heating box, a motor is fixedly installed on one side of the mounting plate, a fixing frame is fixedly connected between the inner walls of the piston cylinder, a reciprocating screw is rotatably connected to one side of the fixing frame, the output end of the motor extends to the other side of the mounting plate and is fixedly connected to one end of the reciprocating screw, a slider is threadedly connected to the outer side of the reciprocating screw, a plurality of linkage rods are fixedly connected to one side of the slider, and the side of the linkage rod away from the slider is fixedly connected to the first piston plate.

[0011] By adopting the above technical solution, the motor is controlled to drive the reciprocating screw to rotate, so that the slider reciprocates on the outside of the reciprocating screw, and the first piston plate is driven to perform piston movement in the piston cylinder through the linkage rod.

[0012] A further improvement of the technical solution of the utility model is that the one-way conduction component includes a fixed plate fixedly connected between the inner walls of the control cylinder, a sliding rod is slidably connected to one side of the fixed plate, one end of the sliding rod extends to the other side of the fixed plate and is fixedly connected to a plug, a discharge port is opened at the closed end of the control cylinder, the plug is used in conjunction with the discharge port, a spring is sleeved on the outer side of the sliding rod, and a discharge port is opened on one side of the fixed plate and penetrates to the other side.

[0013] By adopting the above technical solution, when the air pressure on the side where the control cylinder is located is greater than that on the other side, the air pressure pushes the plug to move, squeezing the spring, thereby causing the plug to detach from the discharge port and achieve conduction; and when the air pressure on the side where the control cylinder is located is less than that on the other side, the plug blocks the discharge port under the action of the spring, thereby blocking the one-way conduction component.

[0014] A further improvement of the technical solution of the utility model is that the side of the control cylinder with an opening inside the output tube faces the auxiliary heating tube, and the side of the control cylinder without an opening inside the return tube faces the transfer cylinder.

[0015] By adopting the above technical solution, the one-way conducting component located in the output pipe can only conduct from the heating box to the auxiliary heating pipe; and the one-way conducting component located in the return pipe can only conduct from the middle drum to the heating box.

[0016] A further improvement of the technical solution of the utility model is that a second piston plate is slidably connected between the inner walls of the rotating cylinder, and one end of the rotating cylinder extends to the outside of the heating box and is provided with a through hole.

[0017] The above technical solution is adopted so that the medium in the auxiliary heating pipe enters the transfer cylinder before flowing back into the heating box, so that the air pressure is released when the medium flows back.

[0018] A further improvement of the technical solution of the utility model is that the heat conducting medium is set as oil.

[0019] The above technical solution is adopted to facilitate absorbing heat and slowly releasing it inside the roller heating furnace body, thereby keeping the furnace warm.

[0020] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0021] The utility model provides a roller heating furnace with a heat preservation function. An auxiliary heat supply pipe is arranged around the inner wall of the roller heating furnace body. During the operation of the roller heating furnace body, the high-temperature roller is continuously rotated to heat the target, and the temperature in the furnace is increased at the same time, and the diffused temperature is transferred to the heat-conducting medium in the auxiliary heat supply pipe for storage. Since the heat-conducting medium oil has a higher specific heat capacity, it can store more heat relative to air, so that when the sample is taken out, even if the heating furnace door is opened, all the heat will not be released, so that the heat preservation in the furnace is achieved. During the operation, the heat-conducting medium in the heating box can be heated by controlling the operation of the electric heating rod, and the heat flow can be sent to the auxiliary heat supply pipe by using the driving component for auxiliary heat preservation. It is suitable for the gaps between multiple operations, so that the next heating can reach the set temperature faster, so as to improve the efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 One of the three-dimensional diagrams of the utility model as a whole;

[0024] Figure 2 The second is a three-dimensional diagram of the utility model as a whole;

[0025] Figure 3 It is one of the partial cross-sectional schematic diagrams of the utility model;

[0026] Figure 4 This is the second partial cross-sectional schematic diagram of the utility model;

[0027] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 It is a structural schematic diagram of the one-way conducting component of the utility model.

[0029] In the figure: 1. roller heating furnace body; 2. auxiliary heating pipe; 3. heating box; 4. output pipe; 5. input pipe; 6. piston cylinder; 7. mounting plate; 8. motor; 9. first piston plate; 10. fixing frame; 11. linkage rod; 12. reciprocating screw rod; 13. slider; 14. electric heating rod; 15. transfer cylinder; 16. through hole; 17. second piston plate; 18. reflux pipe; 19. control cylinder; 20. fixing plate; 21. discharge port; 22. slide rod; 23. plug; 24. spring; 25. discharge port. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the embodiments:

[0031] Example 1

[0032] like Figure 1 and Figure 3As shown, the utility model provides a roller heating furnace with heat preservation function, comprising a roller heating furnace body 1; an auxiliary heating pipe 2 is surrounded by the inner wall of the roller heating furnace body 1, a heating box 3 is fixedly connected to one side of the roller heating furnace body 1, a heat conducting medium is contained in the heating box 3, an electric heating rod 14 is fixedly installed at the bottom of the heating box 3, one end of the auxiliary heating pipe 2 is fixedly connected to an input pipe 5, an end of the auxiliary heating pipe 2 away from the input pipe 5 is fixedly connected to an output pipe 4, the output pipe 4 is located below the input pipe 5, an end of the output pipe 4 away from the auxiliary heating pipe 2 is communicated with the interior of the heating box 3, a rotating cylinder 15 is inlaid in the interior of the heating box 3, a reflux pipe 18 communicated with the interior of the heating box 3 is arranged at the bottom of the rotating cylinder 15, an end of the input pipe 5 away from the auxiliary heating pipe 2 extends to the interior of the rotating cylinder 15, and a driving component for providing circulation of the heat conducting medium is arranged on one side of the heating box 3.

[0033] In this embodiment, an auxiliary heating pipe 2 is arranged around the inner wall of the roller heating furnace body 1. During the operation of the roller heating furnace body 1, the target is heated by the continuous rotation of the high-temperature roller, and the temperature in the furnace is increased, and the diffused temperature is transferred to the heat-conducting medium in the auxiliary heating pipe 2 for storage. Since the heat-conducting medium oil has a higher specific heat capacity, it can store more heat relative to air, so that even if the heating furnace door is opened when taking out the sample, not all the heat is released, thereby achieving heat preservation in the furnace. During operation, the electric heating rod 14 can be controlled to work to heat the heat-conducting medium in the heating box 3, and the drive component can be used to send the heat flow into the auxiliary heating pipe 2 for auxiliary heat preservation. It is suitable for the gaps between multiple operations, so that the next heating can reach the predetermined temperature faster, thereby improving the efficiency of the operation.

[0034] Example 2

[0035] like Figure 3 and Figure 4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the driving assembly includes a piston cylinder 6 fixedly connected to one side of the heating box 3, the piston cylinder 6 is communicated with the interior of the heating box 3, a first piston plate 9 is slidably connected between the inner walls of the piston cylinder 6, a control cylinder 19 is fixedly connected between the inner walls of the return pipe 18 and the output pipe 4, the control cylinder 19 is configured as a cylindrical structure with an opening on one side, and a one-way conduction assembly is arranged inside the control cylinder 19, and the one-way conduction assembly is used to allow the heat-conducting medium to conduct only one way in the pipeline.

[0036] In this embodiment, the first piston plate 9 performs piston motion in the piston cylinder 6 , and cooperates with the one-way conducting component to enable the heat transfer medium to circulate between the auxiliary heating pipe 2 , the transfer cylinder 15 and the heating box 3 .

[0037] like Figure 4 and Figure 5 As shown, preferably, the drive assembly also includes a mounting plate 7, which is fixedly connected to one side of the roller heating furnace body 1 close to the heating box 3, a motor 8 is fixedly installed on one side of the mounting plate 7, a fixing frame 10 is fixedly connected between the inner walls of the piston cylinder 6, a reciprocating screw 12 is rotatably connected to one side of the fixing frame 10, an output end of the motor 8 extends to the other side of the mounting plate 7 and is fixedly connected to one end of the reciprocating screw 12, a slider 13 is threadedly connected to the outer side of the reciprocating screw 12, a plurality of linkage rods 11 are fixedly connected to one side of the slider 13, and the side of the linkage rod 11 away from the slider 13 is fixedly connected to the first piston plate 9.

[0038] In this embodiment, the motor 8 is controlled to rotate the reciprocating screw 12, so that the slider 13 reciprocates outside the reciprocating screw 12, and the first piston plate 9 is driven to perform piston motion in the piston cylinder 6 through the linkage rod 11.

[0039] Example 3

[0040] like Figure 2 and Figure 5 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, the one-way conduction component includes a fixed plate 20 fixedly connected between the inner walls of the control cylinder 19, a slide rod 22 is slidably connected to one side of the fixed plate 20, one end of the slide rod 22 extends to the other side of the fixed plate 20 and is fixedly connected to a plug 23, a discharge port 25 is provided at the closed end of the control cylinder 19, the plug 23 is used in conjunction with the discharge port 25, a spring 24 is sleeved on the outer side of the slide rod 22, and a discharge port 21 is provided on one side of the fixed plate 20 that passes through to the other side.

[0041] In this embodiment, when the control cylinder 19 is located at a side where the air pressure is greater than that on the other side of the discharge port 25, the air pressure pushes the plug 23 to move, squeezing the spring 24, thereby causing the plug 23 to separate from the discharge port 25 and achieve conduction; and when the control cylinder 19 is located at a side where the air pressure is less than that on the other side of the discharge port 25, the plug 23 blocks the discharge port 25 under the action of the spring 24, thereby blocking the one-way conduction component.

[0042] Example 4

[0043] like Figure 6 As shown, based on Example 3, the utility model provides a technical solution: preferably, the side with an opening of the control cylinder 19 inside the output pipe 4 faces the auxiliary heating pipe 2, and the side without an opening of the control cylinder 19 inside the return pipe 18 faces the transfer cylinder 15.

[0044] In this embodiment, the one-way conducting component in the output pipe 4 can only conduct from the heating box 3 to the auxiliary heating pipe 2; and the one-way conducting component in the return pipe 18 can only conduct from the intermediate drum 15 to the heating box 3.

[0045] like Figure 2 and Figure 3 As shown, preferably, a second piston plate 17 is slidably connected between the inner walls of the rotating cylinder 15 , and one end of the rotating cylinder 15 extends to the outside of the heating box 3 and is provided with a through hole 16 .

[0046] In this embodiment, the medium in the auxiliary heating pipe 2 first enters the transfer cylinder 15 before flowing back into the heating box 3, so that the air pressure is released when the medium flows back.

[0047] Preferably, the heat conducting medium is set to be oil.

[0048] In this embodiment, it is convenient to absorb heat and slowly release it inside the roller heating furnace body 1 to keep the furnace warm.

[0049] The working principle of the roller heating furnace with heat preservation function is described in detail below.

[0050] like Figure 1-6As shown, during the operation of the roller heating furnace body 1, the target is heated by the continuous rotation of the high-temperature roller, which will cause the temperature in the furnace to rise, and then the diffused temperature is transferred to the heat-conducting medium in the auxiliary heating pipe 2 for storage. Since the heat-conducting medium oil has a higher specific heat capacity, it can store more heat relative to air, so that even if the heating furnace door is opened when taking out the sample, not all the heat will be released, thereby achieving heat preservation in the furnace; during the operation, the heat-conducting medium in the heating box 3 can be heated by controlling the electric heating rod 14 to work. During the heating process, the motor 8 is controlled to work to drive the reciprocating screw rod 12 to rotate. Then the slider 13 reciprocates on the outside of the reciprocating screw 12, and drives the first piston plate 9 to make piston movement in the piston cylinder 6 through the linkage rod 11. When the first piston plate 9 moves to the side close to the linkage rod 11, negative pressure is generated in the piston cylinder 6 and the heating box 3, so that the one-way conductive component located in the return pipe 18 pushes the plug 23 to move due to the air pressure, squeezes the spring 24, and then the plug 23 is separated from the discharge port 25, so that the heat-conducting medium located in the rotating cylinder 15 can be discharged into the heating box 3. During the discharge process, the pressure in the rotating cylinder 15 is released, and during this process, the second piston plate 17 moves to When the first piston plate 9 moves to the side away from the through hole 16, during this process, the one-way conducting component in the output pipe 4 cannot move because the plug 23 is blocked by the discharge port 25, thereby being blocked; and when the first piston plate 9 moves to the side away from the linkage rod 11, a positive pressure is generated in the piston cylinder 6 and the heating box 3, so that the one-way conducting component in the output pipe 4 pushes the plug 23 to move due to the air pressure, compressing the spring 24, thereby causing the plug 23 to break away from the discharge port 25, thereby achieving conduction, so that the heat-conducting medium in the heating box 3 can be discharged into the auxiliary heating pipe 2, and the medium originally in the auxiliary heating pipe 2 is discharged into the auxiliary heating pipe 2 during the discharge process. In the rotating cylinder 15, the second piston plate 17 moves to the side away from the through hole 16. During this process, the one-way conducting component located in the reflux pipe 18 cannot move because the plug 23 is blocked by the discharge port 25, and is thus blocked. Repeating the action completes the medium exchange between the heating box 3 and the auxiliary heating pipe 2, and sends heat into the roller heating furnace body 1, so that the furnace environment temperature of the roller heating furnace body 1 rises. Since it is not in direct contact with the heated material, it only keeps the furnace environment warm. In the intervals between multiple operations, the next heating can reach the predetermined temperature faster, thereby improving the efficiency of the operation.

[0051] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A roller heating furnace with heat preservation function, comprising a roller heating furnace body (1); characterized in that: The inner wall of the roller heating furnace body (1) is surrounded by an auxiliary heating pipe (2); a heating box (3) is fixedly connected to one side of the roller heating furnace body (1); a heat-conducting medium is contained in the heating box (3); an electric heating rod (14) is fixedly installed at the bottom of the heating box (3); one end of the auxiliary heating pipe (2) is fixedly connected to an input pipe (5); the end of the auxiliary heating pipe (2) away from the input pipe (5) is fixedly connected to an output pipe (4); the output pipe (4) is located at the input The output pipe (4) is located below the auxiliary heating pipe (5), one end of the output pipe (4) away from the auxiliary heating pipe (2) is communicated with the interior of the heating box (3), a transfer cylinder (15) is embedded in the interior of the heating box (3), and a return pipe (18) communicating with the interior of the heating box (3) is arranged at the bottom of the transfer cylinder (15), one end of the input pipe (5) away from the auxiliary heating pipe (2) extends to the interior of the transfer cylinder (15), and a driving component for providing a circulating flow of a heat-conducting medium is arranged on one side of the heating box (3).

2. The roller heating furnace with heat preservation function according to claim 1, characterized in that: The driving assembly comprises a piston cylinder (6) fixedly connected to one side of the heating box (3), the piston cylinder (6) being in communication with the interior of the heating box (3), a first piston plate (9) being slidably connected between the inner walls of the piston cylinder (6), a control cylinder (19) being fixedly connected between the inner walls of the return pipe (18) and the output pipe (4), the control cylinder (19) being a cylindrical structure with an opening on one side, a one-way conducting assembly being arranged inside the control cylinder (19), the one-way conducting assembly being used to enable the heat-conducting medium to conduct only one way in the pipeline.

3. The roller heating furnace with heat preservation function according to claim 2, characterized in that: The drive assembly also includes a mounting plate (7), the mounting plate (7) being fixedly connected to a side of the roller heating furnace body (1) close to the heating box (3), a motor (8) being fixedly installed on one side of the mounting plate (7), a fixing frame (10) being fixedly connected between the inner walls of the piston cylinder (6), a reciprocating screw (12) being rotatably connected to one side of the fixing frame (10), an output end of the motor (8) extending to the other side of the mounting plate (7) and being fixedly connected to one end of the reciprocating screw (12), a slider (13) being threadedly connected to the outer side of the reciprocating screw (12), a plurality of linkage rods (11) being fixedly connected to one side of the slider (13), and a side of the linkage rod (11) away from the slider (13) being fixedly connected to the first piston plate (9).

4. The roller heating furnace with heat preservation function according to claim 3 is characterized in that: The one-way conduction component comprises a fixed plate (20) fixedly connected to the inner wall of the control cylinder (19); a slide rod (22) is slidably connected to one side of the fixed plate (20); one end of the slide rod (22) extends to the other side of the fixed plate (20) and is fixedly connected to a plug (23); a discharge port (25) is provided at one closed end of the control cylinder (19); the plug (23) is used in conjunction with the discharge port (25); a spring (24) is sleeved on the outer side of the slide rod (22); and a discharge port (21) is provided on one side of the fixed plate (20) and extends to the other side.

5. The roller heating furnace with heat preservation function according to claim 4, characterized in that: The side of the control cylinder (19) inside the output pipe (4) with an opening faces the auxiliary heating pipe (2), and the side of the control cylinder (19) inside the return pipe (18) without an opening faces the transfer cylinder (15).

6. The roller heating furnace with heat preservation function according to claim 5, characterized in that: A second piston plate (17) is slidably connected between the inner walls of the rotating cylinder (15), and one end of the rotating cylinder (15) extends to the outside of the heating box (3) and is provided with a through hole (16).

7. The roller heating furnace with heat preservation function according to claim 1, characterized in that: The heat transfer medium is set to be oil.

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