Light sensation type floating ball ejector rod liquid level meter

Through the photosensitive float ball top rod level meter combined with laser ranging sensor and explosion-proof heating rod, the problems of inaccurate detection of high viscosity crude oil and difficulty in use in winter are solved, and high-accurate liquid level detection under cold conditions is achieved and automated operations reduce operating costs and security risks.

CN222211891UActive Publication Date: 2024-12-20李帅
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Patent Information

Application Number
CN202421120831.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-22
Publication Date
2024-12-20
Estimated Expiration
2034-05-22

AI Technical Summary

Technical Problem

The existing liquid level meter is inaccurate in measuring high-viscosity crude oil, and has many faults, especially in winter, and manual operation leads to inaccurate data, which increases oil field operation costs and safety risks.

Method used

A photosensitive float ball top rod level meter is designed, using a float ball rod and explosion-proof heating rod combined with a laser ranging sensor to measure the liquid level in real time through a laser ranging sensor. The explosion-proof heating rod maintains liquid under cold conditions. The bitmeter works normally, and automatically transmits and controls the data through the data transmission unit and control operating device.

Benefits of technology

Accurate liquid level detection of high viscosity crude oil is achieved, ensuring the normal operation of the liquid level gauge under cold conditions, reducing manual operation errors, improving metering accuracy and safety, and reducing operating costs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of light sensation type floating ball ejector rod liquid level meters, in particular to a light sensation type floating ball ejector rod liquid level meter which comprises an oil storage tank, a protective barrel flange is arranged on the upper portion of the oil storage tank, and a floating ball rod protective barrel is arranged at the upper end of the protective barrel flange. An observation opening is formed in the floating ball rod protection barrel in a penetrating mode, a floating ball rod guide rod is arranged in the observation opening in a penetrating mode, a floating ball rod is arranged in the floating ball rod guide rod, a floating ball is fixedly welded to the bottom end of the floating ball rod, and a temperature transmitter is arranged in the floating ball. The up-and-down displacement of the floating ball is measured in real time through the laser ranging sensor, and liquid level information in the device is transmitted to the outside.
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Description

Technical Field

[0001] The utility model relates to the technical field of a light-sensitive type float ball mandrel liquid level gauge, in particular to a light-sensitive type float ball mandrel liquid level gauge. Background Art

[0002] At present, the oil field is building six oil fields of "innovation, efficiency, safety, green, digital and harmony". In the process of building digital oil fields, the existing single-well level meter is too expensive to realize digital networking and has many problems. Manual measurement leads to inaccurate data due to manual operation, and the workload of workers is heavy. In addition, the current oil field reduction has caused a shortage of personnel. At the same time, during the measurement of oil wells or oil tanks, due to the high viscosity of crude oil, many existing level meters are inaccurate in measuring single wells or oil tanks, have many faults, and are easy to stick. Especially in winter, they cannot be used normally outdoors or the error is large, and the use effect is poor.

[0003] After searching, it was found that the Chinese patent with authorization announcement 201020244090.6 disclosed a float level gauge mechanism for an internal floating roof oil tank, including a tank body, in which a float level gauge mechanism is provided. The float level gauge mechanism includes an aluminum float plate, a pull wire, a liquid level chamber and a liquid level through hole. A pull wire is provided on the aluminum float plate, and the pull wire is connected to the pull wire mechanism of the tank body. The liquid level through hole is provided on the side wall of the tank body, and the liquid level through hole is connected to the liquid level chamber.

[0004] However, the patents in the prior art have the following disadvantages:

[0005] The float level gauge mechanism for the internal floating roof oil tank adopts an aluminum float plate, which cannot realize the heating function and cannot accurately detect the value. When the crude oil level is detected, the crude oil has a large viscosity, which causes the level gauge to measure the single oil well or oil tank inaccurately, has many faults, and is easy to stick. Especially in winter, it cannot be used normally outdoors or the error is large, and the use effect is poor. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a light-sensitive float-rod liquid level gauge, which solves the problems that the aluminum float cannot realize the heating function and cannot accurately detect the value. When the liquid level of crude oil is detected, the crude oil has a large viscosity, which causes the liquid level gauge to measure inaccurately for a single oil well or oil tank, has many faults, and is easy to stick. In particular, the problem that it cannot be used normally outdoors in winter or the error is large, resulting in poor use effect.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: including an oil storage tank, characterized in that: a protective cylinder flange is provided on the upper part of the oil storage tank, a float rod protection barrel is provided on the upper end of the protective cylinder flange, an observation port is penetrated inside the float rod protection barrel, a float rod guide rod is penetrated inside the observation port, a float rod is provided inside the float rod guide rod, a float ball is welded and fixed to the bottom end of the float rod, a temperature transmitter is provided inside the float ball, an explosion-proof heating rod is provided inside the float ball, a protective cylinder flange is provided on the upper end of the float rod protection barrel, and a fixed protection box is fixed to the upper end of the protective cylinder flange by bolts A laser ranging sensor is arranged inside the fixed protection box, a glass protective cover is arranged on the upper end of the laser ranging sensor of the fixed protection box, a directional scale rod is fixed to the upper end of the fixed protection box by bolts, there are scales on the directional scale rod, a directional ranging track plate is fixedly arranged on the outer periphery of the upper part of the float rod, the other end of the directional ranging track plate is sleeved on the outer periphery of the directional scale rod, an explosion-proof hose is arranged on the upper end of the fixed protection box, a sealing partition is arranged inside the fixed protection box, the sealing partition separates the explosion-proof hose from the observation port, a support leg is arranged on one side of the oil storage tank, and the upper end of the support leg is fixed to the chassis by bolts.

[0010] As a preferred embodiment of the utility model, an oil inlet is provided at the upper end of the oil storage tank.

[0011] As a preferred embodiment of the utility model, an oil pumping port is provided at the upper end of the oil storage tank, and a pipeline is provided at the oil pumping port and is located at the bottom of the oil storage tank.

[0012] As a preferred embodiment of the utility model, an explosion-proof sealing joint is provided at the upper end of the float rod, and the explosion-proof sealing joint is connected to an explosion-proof hose. A temperature sensor signal line and a heater power line are provided inside the explosion-proof hose, and the corresponding circuit in the explosion-proof hose is electrically connected to the temperature transmitter and the explosion-proof heating rod.

[0013] As a preferred embodiment of the utility model, a control operation device is fixed inside the chassis by bolts, the control operation device is electrically connected to other electrical devices, and a processor is fixed inside the chassis by bolts.

[0014] As a preferred embodiment of the utility model, a data transmission unit DTU is fixed inside the chassis by bolts, and the data transmission unit DTU is electrically connected to the control operation device.

[0015] As a preferred embodiment of the present invention, a temperature control module is fixed inside the chassis by bolts.

[0016] As a preferred embodiment of the utility model, heat dissipation holes are provided on both sides of the chassis, and a door panel is hinged on the front end of the chassis.

[0017] (III) Beneficial effects

[0018] The utility model provides a light-sensitive float mandrel liquid level gauge, which has the following beneficial effects:

[0019] 1. The utility model is a light-sensitive float top rod liquid level meter that measures the up and down displacement of the float in real time through a laser distance measuring sensor and transmits the liquid level information in the device to the outside.

[0020] 2. The utility model is a light-sensitive float top rod liquid level gauge. A directional ranging track plate is arranged on the float rod, a protective tube flange is arranged, a fixed protection box is arranged on the protective tube flange, and a laser ranging sensor is arranged in the fixed protection box. The change of the liquid surface position inside the device drives the change of the upper and lower positions of the float rod, thereby driving the change of the position height of the directional ranging track plate. By detecting the distance between the laser ranging sensor and the directional ranging track plate, the change of the internal liquid level can be known.

[0021] 3. The light-sensitive float top rod liquid level gauge of the utility model is provided with an explosion-proof heating temperature control rod. Even in the cold winter or when the viscosity of the crude oil is very high, the explosion-proof heating temperature control rod will not affect the normal use of the liquid level gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0026] In the figure: 1. Float; 2. Explosion-proof heating rod; 3. Temperature transmitter; 4. Float rod; 5. Oil storage tank; 6. Float rod protection barrel; 7. Float rod guide rod; 8. Protection tube flange; 9. Fixed protection box; 10. Laser ranging sensor; 11. Glass protection cover; 12. Data transmission unit DTU; 13. Sealing partition; 14. Observation port; 15. Leg; 16. Directional ranging track plate; 17. Explosion-proof hose; 18. Explosion-proof sealing joint; 19. Directional scale rod; 20. Chassis; 21. Control operation device; 22. Heat dissipation hole; 23. Processor; 24. Temperature control module; 25. Door panel; 26. Oil inlet; 27. Pump oil port. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 3 The utility model provides a technical solution: a photosensitive float top rod liquid level gauge, including an oil storage tank 5, a protective cylinder flange 8 is arranged on the upper part of the oil storage tank 5, a float rod protection barrel 6 is arranged on the upper end of the protective cylinder flange 8, an observation port 14 is arranged inside the float rod protection barrel 6, a float rod guide rod 7 is arranged inside the observation port 14, a float rod 4 is arranged inside the float rod guide rod 7, a float 1 is welded and fixed to the bottom end of the float rod 4, a temperature transmitter 3 is arranged inside the float 1, an explosion-proof heating rod 2 is arranged inside the float 1, a protective cylinder flange 8 is arranged on the upper end of the float rod protection barrel 6, a fixed protection box 9 is fixed to the upper end of the protective cylinder flange 8 by bolts, and the fixed protection box 9 is provided with a laser ranging sensor 10 inside, a glass protective cover 11 is provided on the upper end of the laser ranging sensor 10 of the fixed protection box 9, a directional scale rod 19 is fixed to the upper end of the fixed protection box 9 by bolts, and there are scales on the directional scale rod 19, a directional ranging track plate 16 is fixedly provided on the upper periphery of the float rod 4, and the other end of the directional ranging track plate 16 is sleeved on the periphery of the directional scale rod 19, an explosion-proof hose 17 is provided on the upper end of the fixed protection box 9, and a sealing partition 13 is provided inside the fixed protection box 9, and the sealing partition 13 separates the explosion-proof hose 17 from the observation port 14, and a support leg 15 is provided on one side of the oil storage tank 5, and the upper end of the support leg 15 is fixed with a chassis 20 by bolts.

[0029] In a specific embodiment of the utility model, a protective cylinder flange 8 is provided on the upper part of the oil storage tank 5 for installing and fixing the protective cylinder 6, a floating ball rod protective cylinder 6 is provided on the upper end of the protective cylinder flange 8, an observation port 14 is provided inside the floating ball rod protective cylinder 6, a floating ball rod guide rod 7 is provided inside the observation port 14, a floating ball rod 4 is provided inside the floating ball rod guide rod 7, a floating ball 1 is welded and fixed at the bottom end of the floating ball rod 4, by providing the floating ball rod 4 and the floating ball 1, the internal liquid capacity information of the device can be transmitted to the outside through the floating ball rod 4 and the floating ball 1, and a temperature transmitter 3 is provided inside the floating ball 1 for Control, detect and adjust the temperature of the heating rod 2. An explosion-proof heating rod 2 is arranged inside the float 1 to heat the float 1. A protective tube flange 8 is arranged on the upper end of the float rod protection barrel 6. A fixed protection box 9 is fixed on the upper end of the protective tube flange 8 to protect the internal components. A laser distance measuring sensor 10 is arranged inside the fixed protection box 9 to detect the distance between the fixed protection box 9 and the directional distance measuring track plate 16. A glass protective cover 11 is arranged on the upper end of the laser distance measuring sensor 10 of the fixed protection box 9 to protect the laser distance measuring sensor 10. The directional scale rod 19 has scales on it. The directional ranging track plate 16 is fixedly arranged on the outer periphery of the upper part of the float rod 4. The other end of the directional ranging track plate 16 is sleeved on the outer periphery of the directional scale rod 19. The position of the directional ranging track plate 16 can be used to visually read the liquid level on site. The directional ranging track plate 16 is fixedly arranged on the outer periphery of the float rod 4. The change of the liquid level position inside the device causes the change of the upper and lower positions of the float rod 4, thereby causing the change of the position height of the directional ranging track plate 16. The laser ranging sensor 10 detects the change with the directional ranging track plate. The distance between 16 can accurately know the change of internal liquid level. The other end of the directional ranging track plate 16 is sleeved on the outer periphery of the directional scale rod 19 to prevent the float rod 4 from rotating left and right, and the float rod 4 can float up and down with the liquid level. An explosion-proof hose 17 is arranged on the upper end of the fixed protection box 9 to protect the internal wires. A sealing partition 13 is arranged inside the fixed protection box 9. The sealing partition 13 separates the explosion-proof hose 17 from the observation port 14 to play a safety protection role. A support leg 15 is arranged on one side of the oil storage tank 5, and a chassis 20 is fixed on the upper end of the support leg 15 for installing other devices.

[0030] Specifically, an oil inlet 26 is disposed at the upper end of the oil storage tank 5 .

[0031] In order to solve the problem of oil entering the oil tank, such as Figure 1 As shown, an oil inlet 26 is provided at the upper end of the oil storage tank 5 so that oil can be input into the oil storage tank 5 .

[0032] Specifically, an oil pumping port 27 is disposed at the upper end of the oil storage tank 5 , and a pipeline is disposed at the bottom of the oil storage tank 5 .

[0033] In order to solve the problem of internal oil output, such as Figure 1 As shown, an oil pump port 27 is provided at the upper end of the oil storage tank 5, and the oil pump port 27 is provided with a pipeline at the bottom of the oil storage tank 5 for outputting the oil.

[0034] Specifically, an explosion-proof sealing joint 18 is provided at the upper end of the float rod 4, and the explosion-proof sealing joint 18 is connected to an explosion-proof hose 17. A temperature sensor signal line and a heater power line are provided inside the explosion-proof hose 17. The corresponding circuit in the explosion-proof hose 17 is electrically connected to the temperature transmitter 3 and the explosion-proof heating rod 2.

[0035] In order to solve the problem of heating the heating rod, such as Figure 1 As shown, an explosion-proof heating temperature control line 9 is arranged inside the float rod 4, and the explosion-proof heating temperature control line 9 is electrically connected to the temperature transmitter 3, and the heating temperature control rod 15 is powered by external electric energy.

[0036] Specifically, a control and operation device 21 is fixed inside the chassis 20 by bolts. The control and operation device 21 is electrically connected to other electrical devices. A processor 23 is fixed inside the chassis 20 by bolts.

[0037] In order to solve the problem of device control information data processing, such as Figure 1 As shown, a control operation device 21 is fixed inside the chassis 20, and the control operation device 21 is electrically connected to other electrical devices and controls them. A processor 23 is fixed inside the chassis 20 for processing data information.

[0038] Specifically, a data transmission unit DTU12 is fixed inside the chassis 20 by bolts, and the data transmission unit DTU12 is electrically connected to the control operation device 21 .

[0039] In order to solve the problem of data transmission and automatic tripping when the liquid level in the oil tank is too high, such as Figure 1 As shown, a data transmission unit DTU12 is fixed inside the chassis 20, and the data transmission unit DTU12 is electrically connected to the control and operation device 21, and is used to convert serial port data into IP data or convert IP data into serial port data and transmit it to the wireless terminal device through the wireless communication network. When the laser ranging sensor 10 detects that the oil is close to the maximum value, it is transmitted to the wireless terminal device through the data transmission unit DTU12, and then the wireless terminal device issues an instruction to control the operation device 21 to operate the circuit to trip, stop the oil from continuing to input, prevent the oil from escaping from the tank, and reduce the safety and environmental protection risks.

[0040] Specifically, a temperature control module 24 is fixed inside the chassis 20 by bolts.

[0041] In order to solve the problem of temperature control, such as Figure 1As shown, a temperature control module 24 is fixed inside the chassis 20 for controlling and adjusting the heating temperature.

[0042] Specifically, heat dissipation holes 22 are provided on both sides of the chassis 20 , and a door panel 25 is hinged at the front end of the chassis 20 .

[0043] In order to solve the problem of extending the service life of the device and protecting the internal electronic components, such as Figure 1 As shown, heat dissipation holes 22 are provided on both sides of the chassis 20 to help dissipate heat and extend the service life of the device. A door panel 25 is hinged at the front end of the chassis 20 to protect the electronic components inside the chassis 20.

[0044] The specific implementation methods disclosed in the present invention omit detailed descriptions of known functions and known components. To ensure the compatibility of the equipment, the operating methods adopted are consistent with the parameters of commercially available equipment.

[0045] In summary, the working principle and use process of the utility model are as follows: a protective cylinder flange 8 is arranged on the upper part of the oil storage tank 5 for installing and fixing the protective cylinder 6; a float rod protective cylinder 6 is arranged on the upper end of the protective cylinder flange 8; an observation port 14 is arranged inside the float rod protective cylinder 6; a float rod guide rod 7 is arranged inside the observation port 14; a float rod 4 is arranged inside the float rod guide rod 7; a float ball 1 is welded and fixed to the bottom end of the float rod 4; by arranging the float rod 4 and the float ball 1, the liquid capacity information inside the device can be transmitted to the outside through the float rod 4 and the float ball 1; a temperature transmitter 3 is arranged inside the float ball 1 for controlling, detecting and adjusting the temperature of the heating rod 2; an explosion-proof heating rod 2 is arranged inside the float ball 1 for heating the float ball 1; a float rod protective cylinder 6 is arranged on the upper end There is a protective tube flange 8, and a fixed protective box 9 is fixed on the upper end of the protective tube flange 8 for protecting the internal components. A laser distance measuring sensor 10 is arranged inside the fixed protective box 9 for detecting the distance between the laser distance measuring sensor 10 and the directional distance measuring track plate 16. A glass protective cover 11 is arranged on the upper end of the laser distance measuring sensor 10 of the fixed protective box 9 for protecting the laser distance measuring sensor 10. A directional scale rod 19 is fixed on the upper end of the fixed protective box 9, and there are scales on the directional scale rod 19. A directional distance measuring track plate 16 is fixedly arranged on the upper periphery of the float rod 4, and the other end of the directional distance measuring track plate 16 is sleeved on the periphery of the directional scale rod 19. The position of the directional distance measuring track plate 16 can be used to visually read the liquid level position on site. The upper periphery of the float rod 4 is fixedly provided with a directional distance measuring track plate 16. The distance track plate 16 is connected to the device. The change of the liquid level position inside the device causes the change of the up and down position of the float rod 4, thereby causing the change of the position height of the directional ranging track plate 16. When the laser ranging sensor 10 detects the distance between it and the directional ranging track plate 16, the change of the internal liquid level can be accurately known. The other end of the directional ranging track plate 16 is sleeved on the outer periphery of the directional scale rod 19 to prevent the float rod 4 from rotating left and right, and the float rod 4 can float up and down with the liquid level position. An explosion-proof hose 17 is provided on the upper end of the fixed protection box 9 to protect the internal wires. A sealing partition 13 is provided inside the fixed protection box 9. The sealing partition 13 separates the explosion-proof hose 17 from the observation port 14 to play a safety protection role. A support leg 15 is provided on one side of the oil storage tank 5 to support the oil storage tank 5. A chassis 20 is fixed at the upper end of the leg 15 for installing other devices. An oil inlet 26 is provided at the upper end of the oil storage tank 5 to allow oil to be input into the oil storage tank 5. An oil pump port 27 is provided at the upper end of the oil storage tank 5. The oil pump port 27 is provided with a pipeline at the bottom of the oil storage tank 5 for outputting the oil. An explosion-proof heating temperature control line 9 is provided inside the float rod 4. The explosion-proof heating temperature control line 9 is electrically connected to the temperature transmitter 3 and the heating temperature control rod 15 is powered by external electric energy. A control operation device 21 is fixed inside the chassis 20. The control operation device 21 is electrically connected to other electrical devices and controls them. A processor 23 is fixed inside the chassis 20 for processing data information. A data transmission unit DTU12 is fixed inside the chassis 20.The data transmission unit DTU12 is electrically connected to the control and operation device 21, and is used to convert serial port data into IP data or convert IP data into serial port data and transmit it to the wireless terminal device through the wireless communication network. When the laser ranging sensor 10 detects that the oil is close to the maximum value, it is transmitted to the wireless terminal device through the data transmission unit DTU12, and then the wireless terminal device issues an instruction to control the operation device 21 to operate the circuit trip, stop the oil from continuing to enter, prevent the oil from overflowing from the tank, and reduce the safety and environmental protection risks.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light-sensitive float-type level gauge, comprising an oil storage tank (5), characterized in that: The oil storage tank (5) is provided with a protective tube flange (8) at the top, a float rod protective barrel (6) is provided at the top of the protective tube flange (8), an observation port (14) is provided inside the float rod protective barrel (6), a float rod guide rod (7) is provided inside the observation port (14), a float rod (4) is provided inside the float rod guide rod (7), a float ball (1) is welded and fixed at the bottom end of the float rod (4), a temperature transmitter (3) is provided inside the float ball (1), an explosion-proof heating rod (2) is provided inside the float ball (1), a protective tube flange (8) is provided at the top of the float rod protective barrel (6), a fixed protection box (9) is fixed to the top of the protective tube flange (8) by bolts, a laser distance measuring sensor (10) is provided inside the fixed protection box (9), A glass protective cover (11) is arranged at the upper end of the laser distance measuring sensor (10) of the fixed protection box (9); a directional scale rod (19) is fixed to the upper end of the fixed protection box (9) by bolts, and the directional scale rod (19) has scales; a directional distance measuring track plate (16) is fixedly arranged on the outer periphery of the upper part of the float rod (4); the other end of the directional distance measuring track plate (16) is sleeved on the outer periphery of the directional scale rod (19); an explosion-proof hose (17) is arranged at the upper end of the fixed protection box (9); a sealing partition (13) is arranged inside the fixed protection box (9); the sealing partition (13) separates the explosion-proof hose (17) from the observation port (14); a support leg (15) is arranged on one side of the oil storage tank (5); the upper end of the support leg (15) is fixed to the chassis (20) by bolts.

2. The optical floating ball mandrel level gauge according to claim 1 is characterized in that: The upper end of the oil storage tank (5) is provided with an oil inlet (26).

3. The optical floating ball mandrel level gauge according to claim 2 is characterized in that: The upper end of the oil storage tank (5) is provided with an oil pumping port (27), and the oil pumping port (27) is provided with a pipeline located at the bottom of the oil storage tank (5).

4. The optical floating ball mandrel level gauge according to claim 1, characterized in that: An explosion-proof sealing joint (18) is arranged at the upper end of the float rod (4), and the explosion-proof sealing joint (18) is connected to an explosion-proof hose (17). A temperature sensor signal line and a heater power line are arranged inside the explosion-proof hose (17), and the corresponding circuit inside the explosion-proof hose (17) is electrically connected to the temperature transmitter (3) and the explosion-proof heating rod (2).

5. The optical floating ball mandrel level gauge according to claim 1 is characterized in that: A control operation device (21) is fixed inside the chassis (20) by means of bolts, the control operation device (21) is electrically connected to other electrical devices, and a processor (23) is fixed inside the chassis (20) by means of bolts.

6. The optical floating ball mandrel level gauge according to claim 5, characterized in that: A data transmission unit DTU (12) is fixed inside the chassis (20) by means of bolts, and the data transmission unit DTU (12) is electrically connected to the control operation device (21).

7. The optical floating ball mandrel level gauge according to claim 6, characterized in that: A temperature control module (24) is fixed inside the chassis (20) by means of bolts.

8. The optical floating ball mandrel level gauge according to claim 7 is characterized in that: Heat dissipation holes (22) are arranged on both sides of the chassis (20), and a door panel (25) is hingedly connected to the front end of the chassis (20).