High-temperature oil temperature machine with dry burning protection

Abstract

The utility model discloses a kind of high-temperature oil temperature machines with dry-burning protection, it is related to high-temperature oil temperature machine technical field, including equipment frame, control box is fixedly installed in equipment frame right side, and equipment frame left side front is provided with oil inlet, and equipment frame left side rear is provided with oil outlet, heating oil cylinder is arranged in the equipment frame, and heating oil cylinder inside is provided with heating pipe, liquid level sensor is arranged in the heating oil cylinder outside, and double liquid level monitoring float ball is connected with liquid level sensor, heating pipe left and right sides are connected with lifting frame, and hydraulic telescopic machine is connected in lifting frame upper side, and lifting frame drives heating pipe to constitute lifting structure. The high-temperature oil temperature machine with dry-burning protection solves the problem that traditional oil temperature machine is easy to dry-burning, temperature rises suddenly, dry-burning failure rate is reduced, oil temperature temperature difference amplitude is small, applicable to plastic forming, chemical reaction and other high-temperature temperature control scene, with safety, accuracy and environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature oil temperature controller technology, specifically a high-temperature oil temperature controller with anti-dry-burning protection. Background Technology

[0002] High-temperature oil temperature controllers are heating devices used for precise temperature control in industrial production. They utilize heat transfer oil as the heat transfer medium to achieve stable control of high-temperature environments ranging from 30℃ to 350℃. Widely used in plastic molding, chemical reactions, and mold processing, the main body consists of heating elements, a circulating pump, a temperature control system, and an insulated oil tank. It features rapid heating and waste heat recovery, and is equipped with high-temperature resistant seals and an explosion-proof structure to ensure safe operation under high-temperature conditions. The equipment can provide a uniform and stable temperature environment for the process, improving product molding quality and production efficiency. However, existing high-temperature oil temperature controllers still have certain problems in use: For example, the 300℃ high-temperature oil temperature controller with application number 202121662511.1 has the following technical solution: it includes a fixed plate, a constant temperature chamber installed on the top of the fixed plate, a connection hole installed on the side wall of the constant temperature chamber, an electric wire installed on the inner wall of the connection hole, a control switch installed at one end of the electric wire, a heating block installed at the other end of the electric wire, a baffle installed on the inner wall of the constant temperature chamber, and two fixed columns installed on the top of the fixed plate. A slider is installed on the inner wall of the left fixed column, a second connecting block is installed on one side of the slider, and the other end of the second connecting block passes through the interior of the fixed column and extends to the outside of the fixed column. The other end of the second connecting block is equipped with an oil temperature chamber. However, existing high-temperature oil temperature controllers are prone to misjudgment due to sensor failure or oil stains, leading to dry burning. The heating tube is in direct contact with the bottom of the oil tank. When the oil level is too low, the heating tube is exposed to the air, causing a sudden increase in local temperature, which can easily burn out the heating tube or cause the oil tank to deform and leak oil.

[0003] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0004] To address the aforementioned issues, an innovative design was implemented based on the existing high-temperature oil temperature controller. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature oil temperature controller with anti-dry-burn protection to solve the problems of easy dry burning and sudden temperature rise mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-temperature oil temperature controller with anti-dry-burning protection includes a frame, a control box fixedly installed on the right side of the frame, an oil inlet on the front left side of the frame, and an oil outlet on the rear left side of the frame. A heating oil cylinder with a heating tube is installed inside the frame. A liquid level sensor connected to a dual-level monitoring float is installed on the outside of the heating oil cylinder. Lifting frames are connected to the left and right sides of the heating tube, and a hydraulic telescopic mechanism is connected above the lifting frames. The lifting frames drive the heating tube to form a lifting structure.

[0007] Preferably, an alarm is fixedly installed on top of the control box, and the alarm is electrically connected to the liquid level sensor.

[0008] With the above technical solution, the alarm above the control box is electrically connected to the liquid level sensor. When the oil level is abnormal, the audible and visual alarm is triggered quickly, improving the operator's response efficiency and enabling them to quickly take measures to replenish oil or stop the machine, further reducing the risk of dry burning.

[0009] Preferably, the oil inlet is connected to the oil-gas separator via a pipe, and an exhaust pipe is connected above the oil-gas separator. An oil-gas box is connected to the upper end of the exhaust pipe, and the oil-gas box is installed on the top of the equipment frame.

[0010] By adopting the above technical solution, the oil-gas separator connected to the oil inlet separates the gas in the oil and introduces it into the oil-gas tank through the exhaust pipe. The gas content in the heat transfer oil is reduced, avoiding local overheating caused by bubbles during heating, while reducing oil-gas leakage and improving environmental friendliness.

[0011] Preferably, the bottom of the oil-gas separator is connected to an oil drain pipe, and the rear side of the oil drain pipe is connected to a centrifugal pump, and the output end of the centrifugal pump is connected to a heating oil cylinder.

[0012] Using the above technical solution, the oil drain pipe at the bottom of the oil-gas separator, together with the centrifugal pump, delivers oil to the heating oil cylinder, improving oil delivery efficiency, stabilizing oil supply pressure, ensuring a balanced oil level in the heating oil cylinder, and preventing localized low oil levels from causing dry burning.

[0013] Preferably, the hydraulic telescopic machine is fixedly installed on the top right side of the equipment frame, and the lower output end of the hydraulic telescopic machine is connected to the lifting frame.

[0014] Using the above technical solution, the hydraulic telescopic mechanism on the top right side of the equipment frame directly drives the lifting frame, improving the lifting response speed of the heating tube. When the oil level is abnormal, the height of the heating tube can be quickly adjusted to prevent the heating tube from directly contacting the bottom of the heating oil cylinder and to avoid the heating tube being exposed to the air when the oil level is too low, causing a sudden increase in local temperature.

[0015] Preferably, the outer side of the lifting frame is provided with a slider, and the lifting frame is slidably connected to the sliding grooves on the left and right sides inside the heating oil cylinder through the slider.

[0016] By adopting the above technical solution, the slider on the outside of the lifting frame slides in conjunction with the groove on the inner wall of the heating oil cylinder, reducing the swaying amplitude of the lifting frame, reducing lifting resistance by connecting the slider with the groove, extending the service life of the hydraulic telescopic machine, and reducing maintenance costs.

[0017] Preferably, the heating oil cylinder is provided with a labyrinth channel inside, and the labyrinth channel increases the oil residence time.

[0018] By adopting the above technical solution, the labyrinth channel inside the heating oil cylinder extends the residence time of the heat transfer oil, improves the heating uniformity, avoids sudden rise in local oil temperature, improves temperature control accuracy, reduces oil quality deterioration caused by local overheating, and extends the service life of the heat transfer oil.

[0019] Compared with the prior art, the beneficial effects of this utility model are: this high-temperature oil temperature controller has anti-dry-burning protection. 1. Dual anti-dry burning and precise temperature control completely solve the pain points of dry burning and sudden temperature rise. The liquid level sensor and dual liquid level monitoring float accurately monitor the oil level. Combined with the hydraulic telescopic mechanism to drive the heating tube to rise and fall, the dry burning failure rate is reduced. The labyrinth channel optimizes the heating path, and the oil temperature difference is small. Compared with traditional devices, the temperature fluctuation is reduced, which not only ensures equipment safety, but also improves the accuracy of process temperature control. 2. High-efficiency oil supply and environmentally friendly separation, taking into account practicality and environmental protection: The centrifugal pump and oil-gas separator achieve efficient and stable oil supply and oil-gas separation, improve oil transfer efficiency, reduce the gas content in the heat transfer oil, avoid local overheating caused by bubbles, and concentrate the oil and gas to the oil-gas tank, reducing leakage. It takes into account the stability of oil supply, heating safety and environmental protection requirements, and is suitable for high-temperature temperature control operations in various industrial scenarios. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model; Figure 2 This is a schematic diagram of the overall right side structure of this utility model; Figure 3 This is a schematic diagram of the external structure of the heating oil cylinder of this utility model; Figure 4 This is a partial cross-sectional view of the heating oil cylinder of this utility model; Figure 5 This is a schematic diagram of the dual liquid level monitoring float structure of this utility model; Figure 6 This is a cross-sectional structural diagram of the heating oil cylinder in Embodiment 2 of this utility model.

[0021] In the diagram: 1. Equipment frame; 2. Control box; 3. Alarm; 4. Oil inlet; 5. Oil outlet; 6. Oil-gas separator; 7. Exhaust pipe; 8. Oil-gas tank; 9. Oil drain pipe; 10. Centrifugal pump; 11. Heating oil cylinder; 12. Heating pipe; 13. Lifting frame; 14. Hydraulic telescopic mechanism; 15. Liquid level sensor; 16. Dual liquid level monitoring float; 17. Maze passage. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1 Please see Figure 1-5 This utility model provides a technical solution: A high-temperature oil temperature controller with anti-dry-burning protection includes a frame 1, a control box 2 fixedly installed on the right side of the frame 1, an oil inlet 4 on the front left side of the frame 1, and an oil outlet 5 on the rear left side of the frame 1. A heating oil cylinder 11 is installed inside the frame 1, and a heating tube 12 is installed inside the heating oil cylinder 11. A liquid level sensor 15 is installed on the outside of the heating oil cylinder 11, and the liquid level sensor 15 is connected to a dual liquid level monitoring float 16. Lifting frames 13 are connected to the left and right sides of the heating tube 12, and a hydraulic telescopic mechanism 14 is connected above the lifting frame 13. The lifting frame 13 drives the heating tube 12 to form a lifting structure.

[0024] An alarm 3 is fixedly installed on the top of the control box 2, and the alarm 3 is electrically connected to the liquid level sensor 15. The alarm 3 on the top of the control box 2 is electrically connected to the liquid level sensor 15. When the oil level is abnormal, the audible and visual alarm is triggered quickly, which improves the operator's response efficiency and allows for quick oil replenishment or shutdown measures, further reducing the risk of dry burning.

[0025] The oil inlet 4 is connected to the oil-gas separator 6 via a pipe, and an exhaust pipe 7 is connected to the top of the oil-gas separator 6. An oil-gas box 8 is connected to the upper end of the exhaust pipe 7, and the oil-gas box 8 is installed on the top of the equipment frame 1. An oil drain pipe 9 is connected to the bottom of the oil-gas separator 6, and the rear side of the oil drain pipe 9 is connected to the centrifugal pump 10. The output end of the centrifugal pump 10 is connected to the heating oil cylinder 11. The oil-gas separator 6 connected to the oil inlet 4 separates the gas in the oil and introduces it into the oil-gas box 8 through the exhaust pipe 7. The gas content in the heat transfer oil is reduced, avoiding local overheating caused by bubbles during heating. At the same time, oil-gas leakage is reduced, improving environmental protection. The oil drain pipe 9 at the bottom of the oil-gas separator 6, together with the centrifugal pump 10, delivers oil to the heating oil cylinder 11, improving oil delivery efficiency, stabilizing oil supply pressure, ensuring a balanced oil level in the heating oil cylinder 11, and avoiding dry burning caused by local low oil levels.

[0026] The hydraulic telescopic mechanism 14 is fixedly installed on the top right side of the equipment frame 1, and the output end of the hydraulic telescopic mechanism 14 is connected to the lifting frame 13. The lifting frame 13 is equipped with sliders on the outside, and the lifting frame 13 is slidably connected to the sliding grooves on the left and right sides of the heating oil cylinder 11 through the sliders. The hydraulic telescopic mechanism 14 on the top right side of the equipment frame 1 directly drives the lifting frame 13, which improves the lifting response speed of the heating tube 12. When the oil level is abnormal, the height of the heating tube 12 can be quickly adjusted to prevent the heating tube 12 from directly contacting the bottom of the heating oil cylinder 11. This avoids the heating tube 12 being exposed to the air when the oil level is too low, which would cause a sudden increase in local temperature. The sliders on the outside of the lifting frame 13 slide in cooperation with the sliding grooves on the inner wall of the heating oil cylinder 11, which reduces the swaying amplitude of the lifting frame 13. The connection between the sliders and the sliding grooves reduces the lifting resistance, extends the service life of the hydraulic telescopic mechanism 14, and reduces maintenance costs.

[0027] Example 2 Please see Figure 6 This utility model provides a technical solution: The heating oil cylinder 11 is equipped with a labyrinth channel 17, which increases the oil residence time. The labyrinth channel 17 inside the heating oil cylinder 11 extends the residence time of the heat transfer oil, improves the heating uniformity, avoids sudden rise in local oil temperature, improves temperature control accuracy, reduces oil quality deterioration caused by local overheating, and extends the service life of the heat transfer oil.

[0028] Working principle: When using this utility model, Oil supply and oil-gas separation stage: The heat transfer oil enters the oil-gas separator 6 through the oil inlet 4. The separated gas is introduced into the oil-gas tank 8 for recovery through the exhaust pipe 7. The degassed heat transfer oil is pressurized and transported to the heating oil cylinder 11 by the centrifugal pump 10 through the oil outlet pipe 9, ensuring that the oil level in the heating oil cylinder 11 is sufficient and stable. Heating and anti-dry burning monitoring stage: The heating tube 12 is energized to heat the heat transfer oil. The labyrinth channel 17 in the heating oil cylinder 11 extends the oil residence time to achieve uniform heating. The liquid level sensor 15 and the dual liquid level monitoring float 16 monitor the oil level in real time and transmit the data to the control box 2. When the oil level is lower than the safety threshold, the alarm 3 is immediately triggered to sound and light alarm. Emergency protection and lifting adjustment phase: When the oil level is abnormal, the control box 2 commands the hydraulic telescopic machine 14 to start. The lifting frame 13 drives the heating tube 12 to be quickly lifted along the slide groove to remove it from the oil surface and avoid dry burning. After the oil level returns to normal, the hydraulic telescopic machine 14 drives the heating tube 12 to descend and reset, and continue heating. The whole process forms a closed loop of "oil supply-heating-monitoring-protection" to ensure the safe and stable operation of the equipment.

[0029] Oil circulation stage: The heated heat transfer oil is output to the process equipment through oil outlet 5 to complete the temperature control operation and realize continuous circulation heating.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature oil temperature controller with anti-dry-burning protection, comprising a device frame (1), a control box (2) fixedly installed on the right side of the device frame (1), an oil inlet (4) provided on the front left side of the device frame (1), and an oil outlet (5) provided on the rear left side of the device frame (1), a heating oil cylinder (11) provided inside the device frame (1), and a heating tube (12) provided inside the heating oil cylinder (11), characterized in that: A liquid level sensor (15) is provided on the outside of the heating oil cylinder (11), and the liquid level sensor (15) is connected to a dual liquid level monitoring float (16). The heating tube (12) is connected to a lifting frame (13) on both sides, and a hydraulic telescopic machine (14) is connected above the lifting frame (13). The lifting frame (13) drives the heating tube (12) to form a lifting structure.

2. A high-temperature oil temperature controller with anti-dry-burning protection according to claim 1, characterized in that: An alarm (3) is fixedly installed on the top of the control box (2), and the alarm (3) is electrically connected to the liquid level sensor (15).

3. A high-temperature oil temperature controller with anti-dry-burning protection according to claim 1, characterized in that: The oil inlet (4) is connected to the oil-gas separator (6) via a pipe, and an exhaust pipe (7) is connected above the oil-gas separator (6). An oil-gas box (8) is connected to the upper end of the exhaust pipe (7), and the oil-gas box (8) is installed on the top of the equipment frame (1).

4. A high-temperature oil temperature controller with anti-dry-burning protection according to claim 3, characterized in that: The bottom of the oil-gas separator (6) is connected to an oil drain pipe (9), and the rear side of the oil drain pipe (9) is connected to a centrifugal pump (10), and the output end of the centrifugal pump (10) is connected to a heating oil cylinder (11).

5. A high-temperature oil temperature controller with anti-dry-burning protection according to claim 1, characterized in that: The hydraulic telescopic machine (14) is fixedly installed on the top right side of the equipment frame (1), and the lower output end of the hydraulic telescopic machine (14) is connected to the lifting frame (13).

6. A high-temperature oil temperature controller with anti-dry-burning protection according to claim 5, characterized in that: The lifting frame (13) is equipped with sliders on its outer side, and the lifting frame (13) is slidably connected to the sliding grooves on the left and right sides inside the heating oil cylinder (11) through the sliders.

7. A high-temperature oil temperature controller with anti-dry-burning protection according to claim 1, characterized in that: The heating oil cylinder (11) is provided with a labyrinth channel (17) inside, and the labyrinth channel (17) increases the oil residence time.

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