A portable lubricating oil heating and data monitoring and collecting device

Abstract

This invention discloses a portable lubricating oil heating and data monitoring and acquisition device, including a heating unit and a data acquisition and monitoring unit. The heating unit includes a housing, a sheathed heater, and an oil pump. A first partition divides the housing into a storage box and a lubricating oil heating box. The sheathed heater is located at the bottom of the lubricating oil heating box, and the oil pump is located in the storage box. The top of the storage box has an oil return port and an oil outlet. The oil pump is connected to the lubricating oil heating box, and its outlet is connected to the oil outlet. The oil return port is connected to the lubricating oil heating box. The data acquisition and monitoring unit is used to adjust the power of the sheathed heater, adjust the lubricating oil flow rate at the oil pump outlet, and collect and display the temperature and pressure at multiple measuring points on the test piece in real time. This invention's device can simultaneously perform lubricating oil heating and data acquisition and monitoring. The device adopts a split structure, with a reasonable and compact component layout, high overall space utilization, light weight, and small size, meeting the requirements for portability.

Description

Technical Field

[0001] This invention belongs to the technical field of aviation experimental equipment, and specifically relates to a portable lubricating oil heating and data monitoring and acquisition device. Background Technology

[0002] Aircraft engine anti-icing systems need to be verified through ice wind tunnel tests to prove that the design can meet national military standards or airworthiness requirements. However, some ice wind tunnel test laboratories in China did not consider the heating requirements of hot lubricating oil anti-icing when they were built, and cannot provide ice wind tunnel test conditions with hot lubricating oil heating. For those verification tests that use hot lubricating oil anti-icing, they need to provide their own hot lubricating oil heating equipment.

[0003] Patent CN110986362A discloses a lubricating oil heating device, mainly used for bearing testing and verification. It consists of multiple tanks, including a heat exchange tank and a heating tank. The device is an auxiliary device on the test bench and cannot meet the requirements for portability.

[0004] In summary, some existing aero-engine laboratories lack the function of heating hot lubricating oil for anti-icing, while existing lubricating oil heating equipment is large in size and complex in structure, failing to meet portability requirements, and increasing experimental costs during the transportation of lubricating oil heating equipment. Summary of the Invention

[0005] To address the above problems, this invention provides a portable lubricating oil heating and data monitoring and acquisition device, employing the following technical solution:

[0006] A portable lubricating oil heating and data monitoring and acquisition device includes a heating unit and a data acquisition and monitoring unit. The heating unit comprises a housing, a sheathed heater, and an oil pump. A first partition divides the housing into a storage compartment and a lubricating oil heating compartment. The sheathed heater is located at the bottom of the lubricating oil heating compartment. The oil pump is located inside the storage compartment. The top of the storage compartment has an oil return port and an oil outlet. The inlet of the oil pump is connected to the lubricating oil heating compartment via a first pipe, and the outlet of the oil pump is connected to the oil outlet via a second pipe. The oil return port is connected to the lubricating oil heating compartment via a third pipe.

[0007] The data acquisition and monitoring unit is used to adjust the power of the sheath heater, and is also used to adjust the lubricating oil flow rate at the oil pump outlet. The data acquisition and monitoring unit is also used to collect and display the temperature and pressure at multiple measuring points on the test piece in real time.

[0008] Furthermore, the heating unit also includes a pressure transmitter and a flow meter disposed on the second pipe;

[0009] The data acquisition and monitoring unit is also used to acquire the lubricating oil pressure at the oil pump outlet through the pressure transmitter, and the data acquisition and monitoring unit is also used to acquire the lubricating oil flow rate at the oil pump outlet through the flow meter.

[0010] Furthermore, a first wire passage hole, a second wire passage hole, and a third wire passage hole are provided on one side of the storage box;

[0011] The oil pump connection line has its first end passing through the first wire hole and connected to the oil pump; the pressure signal transmission line has its first end passing through the second wire hole and connected to the pressure transmitter; the pressure signal transmission line has its second end connected to the data acquisition and monitoring unit; the flow signal transmission line has its first end passing through the third wire hole and connected to the flow meter; and the flow signal transmission line has its second end connected to the data acquisition and monitoring unit.

[0012] Furthermore, the data acquisition and monitoring unit includes a control cabinet, and a second partition is provided inside the control cabinet, which divides the control cabinet into a first cabinet and a second cabinet.

[0013] The first cabinet contains a circuit breaker, an integrated control module, an analog input module, a frequency converter, a relay, and a contactor, while the second cabinet contains a thermocouple acquisition module, a switching power supply, and a heating power adjustment module.

[0014] Furthermore, a fourth wire passage hole, a fifth wire passage hole, a sixth wire passage hole, and a seventh wire passage hole are provided on one side of the control cabinet;

[0015] The second end of the pressure signal transmission line passes through the fourth wire hole and is connected to the integrated control module. The second end of the flow signal transmission line passes through the fifth wire hole and is connected to the integrated control module. One end of the heating connection line is connected to the heating power adjustment module, which is also connected to the integrated control module. The other end of the heating connection line passes through the sixth wire hole and is connected to the sheath heater. One end of the power line passes through the seventh wire hole and is connected to the circuit breaker.

[0016] Furthermore, the cabinet door of the first cabinet is equipped with a display screen and several signal indicator lights.

[0017] Furthermore, the RST terminal of the frequency converter is sequentially connected to the contactor, the relay, and the three-phase power supply; the control port of the frequency converter is connected to the integrated control module; the output terminal of the frequency converter is connected to the second end of the oil pump connection line; one end of the switching power supply is connected to the circuit breaker; and the other end of the switching power supply is connected to the integrated control module.

[0018] Furthermore, the cabinet door of the second cabinet is provided with multiple temperature signal line through holes and multiple pressure signal line through holes;

[0019] In this configuration, one end of each of the multiple temperature sensor signal lines passes through multiple temperature signal line through-holes and is connected to one end of the thermocouple acquisition module. The other end of the thermocouple acquisition module is connected to the input terminal of the analog input module. One end of each of the multiple pressure sensor signal lines passes through multiple pressure signal line through-holes and is connected to the input terminal of the analog input module. The output terminal of the analog input module is connected to the integrated control module and the display screen.

[0020] Furthermore, the circuit breaker, the integrated control module, and the analog input module are connected to the upper end of the second partition on one side of the first cabinet via a first fixing plate, and the frequency converter, the relay, and the contactor are connected to the lower end of the second partition on one side of the first cabinet via a second fixing plate.

[0021] Furthermore, the thermocouple acquisition module is fixed to the upper end of the second partition located on one side of the second cabinet, and the switching power supply and the heating power adjustment module are fixed to the lower end of the second partition located on one side of the second cabinet.

[0022] Furthermore, a level gauge is also provided on one side of the lubricating oil heating box.

[0023] Furthermore, an oil filter is installed on the first pipeline.

[0024] Furthermore, the lubricating oil heating box is surrounded by heat-insulating cotton.

[0025] Furthermore, it also includes a terminal, which is communicatively connected to the data acquisition and monitoring unit.

[0026] Furthermore, the first partition is a hollow structure.

[0027] The beneficial effects of the present invention are as follows: The device of the present invention can simultaneously perform lubricating oil heating and data acquisition and monitoring; The device of the present invention adopts a split structure, and the reasonable layout of the components makes the structure compact, with high overall space utilization, light weight, and small size, thereby meeting the requirements of portability.

[0028] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the heating unit structure according to an embodiment of the present invention is shown;

[0031] Figure 2 A schematic diagram of the installation of the sheathed heater according to an embodiment of the present invention is shown;

[0032] Figure 3 A schematic diagram of the internal structure of the first cabinet of the data acquisition and monitoring unit according to an embodiment of the present invention is shown;

[0033] Figure 4 A schematic diagram of the internal structure of the second cabinet of the data acquisition and monitoring unit according to an embodiment of the present invention is shown;

[0034] Figure 5 A schematic diagram of cabinet door installation for a first cabinet according to an embodiment of the present invention is shown;

[0035] Figure 6 A schematic diagram of one side structure of the control cabinet according to an embodiment of the present invention is shown;

[0036] Figure 7 A schematic diagram of the cabinet door structure of the second cabinet according to an embodiment of the present invention is shown;

[0037] Figure 8 A schematic diagram of the circuit connection of the sheath heater and the oil pump according to an embodiment of the present invention is shown;

[0038] Figure 9 A schematic diagram of the circuit connection of the switching power supply, display screen, and integrated control module according to an embodiment of the present invention is shown.

[0039] In the diagram: 1. Heating unit; 2. Data acquisition and monitoring unit; 3. Cabinet; 4. Sheath heater; 5. Oil pump; 6. Pressure transmitter; 7. Flow meter; 8. First partition; 9. Storage box; 10. Lubricating oil heating box; 11. Oil return port; 12. Oil outlet; 13. First wiring hole; 14. Second wiring hole; 15. Third wiring hole; 16. Level gauge; 17. Thermal insulation cotton; 18. First cabinet; 19. Second cabinet; 20. Circuit breaker; 21. Integrated control. Modules; 22. Analog Input Module; 23. Frequency Converter; 24. Relay; 25. Contactor; 26. First Fixing Plate; 27. Second Fixing Plate; 28. Thermocouple Acquisition Module; 29. ​​Switching Power Supply; 30. Heating Power Adjustment Module; 31. Display Screen; 32. Signal Indicator; 33. Fourth Wiring Hole; 34. Fifth Wiring Hole; 35. Sixth Wiring Hole; 36. Seventh Wiring Hole; 37. Temperature Signal Line Wiring Hole; 38. Pressure Signal Line Wiring Hole. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that the terms "first," "second," etc., used in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings.

[0042] This invention provides a portable lubricating oil heating and data monitoring and acquisition device, which is lightweight and easy to carry by hand, and has both lubricating oil heating and data acquisition and monitoring functions.

[0043] like Figure 1 and Figure 3 As shown, a portable lubricating oil heating and data monitoring and acquisition device includes a heating unit 1, a data acquisition and monitoring unit 2, and a terminal (not shown in the figure). The terminal can be a mobile phone, a laptop computer, etc.

[0044] In this embodiment of the invention, the heating unit 1, the data acquisition and monitoring unit 2, and the terminal are all independent modules. The heating unit 1 has an external dimension of no more than 300mm×320mm×350mm and a weight of less than 20kg. The data acquisition and monitoring unit 2 has an external dimension of no more than 250mm×300mm×350mm and a weight of less than 12kg. Each independent module is small in size and light in weight, ensuring that the device meets the requirements for portability and mobility.

[0045] like Figure 1 and Figure 2 As shown, the heating unit 1 includes a housing 3, a sheath heater 4, an oil pump 5, a pressure transmitter 6, and a flow meter 7. The housing 3 is provided with a first partition 8, which divides the housing 3 into a storage box 9 and a lubricating oil heating box 10. The sheath heater 4 is located at the bottom of the lubricating oil heating box 10 and is used to heat the lubricating oil. The oil pump 5, the pressure transmitter 6, and the flow meter 7 are all located in the storage box 9.

[0046] The storage tank 9 has an oil return port 11 and an oil outlet 12 on its top. The inlet of the oil pump 5 is connected to the lubricating oil heating tank 10 through a first pipe, and the outlet of the oil pump 5 is connected to the oil outlet 12 through a second pipe. The oil return port 11 is connected to the lubricating oil heating tank 10 through a third pipe. The oil pump 5 transports the lubricating oil heated by the sheath heater 4 in the lubricating oil heating tank 10 to the oil outlet 12 through the second pipe. The oil outlet 12 is connected to an external test piece, heating the inner cavity of the test piece, and then returning to the lubricating oil heating tank 10 through the oil return port 11 and the third pipe.

[0047] In this embodiment of the invention, the heating unit 1 is integrated into a housing 3 and divided into two housings 3 for device installation and lubricating oil heating and storage, respectively. The structure is compact and the space utilization rate is high, reducing the size of the equipment. In addition, the oil pump 5 is placed close to the lubricating oil heating box 10, shortening the pipeline and thus reducing the weight of the equipment.

[0048] The selection of oil pump 5, the volume of lubricating oil heating box 10, and the power of heater are determined according to the experimental conditions. For example, in this embodiment, based on the experimental conditions, by determining the rated flow rate of the water pump, the volume of lubricating oil heating box 10, and the power of the heater, the maximum lubricating oil flow rate of 10L / min and the maximum lubricating oil temperature of 150℃ are achieved under the requirement that the external dimensions of heating unit 1 do not exceed 300mm×320mm×350mm, thus meeting the requirements of different working conditions in the aero-engine laboratory.

[0049] Pressure transmitter 6 and flow meter 7 are installed on the second pipeline. From bottom to top, storage box 9 has a first wire hole 13, a second wire hole 14 and a third wire hole 15. The first end of the oil pump connection line passes through the first wire hole 13 and is connected to the oil pump 5. The first end of the pressure signal transmission line passes through the second wire hole 14 and is connected to the pressure transmitter 6. The second end of the pressure signal transmission line is connected to the data acquisition and monitoring unit 2. The first end of the flow signal transmission line passes through the third wire hole 15 and is connected to the flow meter 7. The second end of the flow signal transmission line is connected to the data acquisition and monitoring unit 2.

[0050] The pressure transmitter 6 is used to convert the lubricating oil pressure at the outlet of the oil pump 5 into a pressure signal and transmit it to the data acquisition and monitoring unit 2. The flow meter 7 is used to convert the lubricating oil flow at the outlet of the oil pump 5 into a flow signal and transmit it to the data acquisition and monitoring unit 2.

[0051] In this embodiment, different wire holes are provided on the storage box 9, and the power lines and signal lines are set separately to avoid signal interference.

[0052] like Figure 1 As shown, in one embodiment, a level gauge 16 is also provided on one side of the lubricating oil heating box 10, and the lubricating oil level in the lubricating oil heating box 10 can be observed in real time through the level gauge 16.

[0053] In one embodiment, an oil filter is installed on the first pipeline. The heated lubricating oil passes through the coarse filter before entering the oil pump 5, which prevents debris from clogging the pipeline and the oil circuit of the oil pump 5, reduces the amount of cleaning work, and improves the reliability of the equipment.

[0054] like Figure 2 As shown, in one embodiment, the first partition 8 adopts a hollow design to enhance the heat insulation effect between the lubricating oil tank and the storage tank 9; the lubricating oil heating tank 10 is wrapped with heat insulation cotton 17 on all sides to insulate the lubricating oil heating tank 10, which not only improves the heating efficiency and reduces energy consumption, but also ensures that the pressure transmitter 6 and flow meter 7 in the storage tank 9 are in a suitable working environment, thereby improving the service life of the transmitter and flow meter 7.

[0055] The data acquisition and monitoring unit 2 is used to adjust the power of the sheath heater 4 to heat the lubricating oil. The data acquisition and monitoring unit 2 is also used to adjust the lubricating oil flow rate at the outlet of the oil pump 5. The data acquisition and monitoring unit 2 is also used to collect and display the temperature and pressure at multiple measuring points on the test piece in real time. The data acquisition and monitoring unit 2 is also used to obtain the lubricating oil pressure at the outlet of the oil pump 5 through the pressure transmitter 6. The data acquisition and monitoring unit 2 is also used to obtain the lubricating oil flow rate at the outlet of the oil pump 5 through the flow meter 7.

[0056] Specifically, such as Figure 3 and Figure 4As shown, the data acquisition and monitoring unit 2 includes a control cabinet. A second partition (not shown in the figure) is provided inside the control cabinet, dividing the control cabinet into a first cabinet 18 and a second cabinet 19. The first cabinet 18 is equipped with a circuit breaker 20, an integrated control module 21 (e.g., a PLC), an analog input module 22, a frequency converter 23, a relay 24, and a contactor 25. The circuit breaker 20, the integrated control module 21, and the analog input module 22 are connected to the upper end of the second partition on one side of the first cabinet 18 via a first fixing plate 26. The frequency converter 23, the relay 24, and the contactor 25 are connected to the lower end of the second partition on one side of the first cabinet 18 via a second fixing plate 27.

[0057] The second cabinet 19 is equipped with a thermocouple acquisition module 28, a switching power supply 29, and a heating power adjustment module 30. The thermocouple acquisition module 28 is fixed to the upper end of the second partition located on one side of the second cabinet 19, and the switching power supply 29 and the heating power adjustment module 30 are fixed to the lower end of the second partition located on one side of the second cabinet 19.

[0058] In this embodiment of the invention, the control cabinet is divided into two boxes 3 for the arrangement of components, which makes reasonable use of space, makes the structure compact, reduces the size of the equipment, and facilitates the wiring by setting the components in separate boxes 3.

[0059] Furthermore, such as Figure 5 and Figure 6 As shown, the cabinet door of the first cabinet 18 of the control cabinet (the side facing the circuit breaker 20 and other components) is equipped with a display screen 31 and several signal indicator lights 32. One side of the control cabinet is equipped with a fourth wiring hole 33, a fifth wiring hole 34, a sixth wiring hole 35, and a seventh wiring hole 36. The second end of the pressure signal transmission line passes through the fourth wiring hole 33 and is connected to the integrated control module 21. The second end of the flow signal transmission line passes through the fifth wiring hole 34 and is connected to the integrated control module 21. One end of the heating connection line is connected to the heating power adjustment module 30, which is also connected to the integrated control module 21. The other end of the heating connection line passes through the sixth wiring hole 35 and is connected to the sheath heater 4. The integrated control module 21 adjusts the power of the sheath heater 4 through the heating power adjustment module 30, thereby adjusting the oil temperature of the lubricating oil heating box 10. One end of the power cord passes through the seventh wiring hole 36 and is connected to the circuit breaker 20.

[0060] Furthermore, a multi-core cable integrating the heating connection line, oil pump connection line, pressure signal transmission line, and flow signal transmission line is provided. Both ends of the multi-core cable are equipped with quick connectors, which enable quick connection between the heating unit 1 and the data acquisition and monitoring unit 2.

[0061] like Figure 8As shown, the RST terminal of the frequency converter 23 is connected in sequence to the contactor 25, the relay 24, and the three-phase power supply. The output terminal of the frequency converter 23 is connected to the second end of the connection line with the oil pump 5. The control port of the frequency converter 23 is connected to the integrated control module 21. The integrated control module 21 adjusts the speed of the oil pump 5 through the frequency converter 23, thereby adjusting the flow rate of lubricating oil entering the test piece.

[0062] like Figure 9 As shown, one end of the switching power supply 29 is connected to the circuit breaker 20, and the other end of the switching power supply 29 is connected to the integrated control module 21 and the display screen 31. The switching power supply 29 converts the AC power supply into the DC voltage for the integrated control module 21 and the display screen 31 to operate.

[0063] The test specimen has multiple measuring points, each equipped with a temperature sensor and a pressure sensor, such as... Figure 7 As shown, the cabinet door of the second cabinet 19 of the control cabinet is equipped with multiple temperature signal line through holes 37 and multiple pressure signal line through holes 38 according to the number of measuring points of the test piece. For example, 30 temperature signal line through holes 37 and 4 pressure signal line through holes 38 can be set to realize the monitoring, real-time display and recording functions of 30 channels of temperature data and 4 channels of pressure data.

[0064] One end of each of the multiple temperature sensor signal lines passes through multiple temperature signal line through-holes 37 and is connected to one end of the thermocouple acquisition module 28. The other end of the thermocouple acquisition module 28 is connected to the input terminal of the analog input module 22. When multiple temperature data need to be acquired but the wiring ports of the thermocouple acquisition module 28 are insufficient, multiple thermocouple acquisition modules 28 can be set up. For example, when it is necessary to monitor 30 temperature data, a first thermocouple acquisition module 28 and a second thermocouple acquisition module 28 can be set up.

[0065] One end of each of the multiple pressure sensor signal lines passes through multiple pressure signal line through holes 38 and is connected to the input terminal of the analog input module 22. The output terminal of the analog input module 22 is connected to the integrated control module 21 and the display screen 31.

[0066] Temperature and pressure sensors at multiple measuring points on the test specimen transmit temperature and pressure signals to the analog input module 22. The analog input module 22 converts the analog signals into digital signals and sends them to the display screen 31 and the integrated control module 21. The display screen 31 displays the temperature and pressure at multiple measuring points on the test specimen. During the experiment, the real-time display on the display screen 31 allows the experimenter to monitor the temperature and pressure parameters of the test specimen.

[0067] The integrated control module 21 controls the heating power adjustment module 30 to adjust the power of the sheath heater 4 based on the outlet lubricating oil pressure signal and outlet lubricating oil flow signal of the oil pump 5, the temperature signals and pressure signals of multiple measuring points on the test piece, and simultaneously controls the frequency converter 23 to adjust the speed of the oil pump 5 and regulate the lubricating oil flow to meet the experimental conditions of the test piece. The integrated control module 21 can automatically control all actions of the heating unit 1, ensuring stable output of lubricating oil flow and temperature.

[0068] The portable lubricating oil heating and data monitoring and acquisition device of this invention adjusts the flow rate and temperature of hot lubricating oil to meet the test conditions during operation through the control and data acquisition box. It also displays the lubricating oil flow rate, temperature, and test piece pressure and temperature information in real time through the data acquisition box and stores the acquired data information.

[0069] In one embodiment, the terminal is communicatively connected to the data acquisition and monitoring unit 2. For example, the data acquisition and monitoring unit 2 is connected to a laptop computer via a network cable or wirelessly. The terminal can also be a mobile phone. The mobile phone is wirelessly connected to the data acquisition and monitoring unit 2. The mobile phone or laptop computer obtains and stores the experimental data of the test specimen from the data acquisition and monitoring unit 2, which is convenient for subsequent summary and analysis based on the experimental data. Mobile phones and laptop computers are easy to carry, making the experiment more convenient.

[0070] The portable lubricating oil heating and data monitoring and acquisition device of this invention adjusts the oil pump 5 and the sheath heater 4 of the heating unit 1 through the data acquisition and monitoring unit 2 to realize the flow rate and temperature of hot lubricating oil to meet the test conditions. The data acquisition and monitoring unit 2 realizes the function of real-time display of lubricating oil flow rate, temperature, and test piece pressure and temperature information. In addition, the acquired experimental data information is stored through the terminal to meet the requirements of lubricating oil heating and test piece data acquisition and monitoring.

[0071] In addition, the embodiments of the present invention adopt a split design and make the structure compact through the reasonable layout of components, thereby improving the overall space utilization of the device, reducing the size of the device and meeting the requirements of portability.

[0072] The equipment of this invention has been manufactured and tested. The results show that the system's lubricating oil flow rate, temperature, and data acquisition and monitoring system can meet the experimental requirements.

[0073] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable lubricating oil heating and data monitoring and acquisition device, characterized in that, The equipment adopts a split structure and is used for ice wind tunnel testing. It includes an independent heating unit and a data acquisition and monitoring unit. The heating unit includes a housing, a sheath heater, and an oil pump. The housing is divided into a storage box and a lubricating oil heating box by a first partition. The sheath heater is located at the bottom of the lubricating oil heating box, and the oil pump is located in the storage box. The top of the storage box has an oil return port and an oil outlet. The inlet of the oil pump is connected to the lubricating oil heating box through a first pipe, and the outlet of the oil pump is connected to the oil outlet through a second pipe. The oil return port is connected to the lubricating oil heating box through a third pipe. The data acquisition and monitoring unit is used to adjust the power of the sheath heater, adjust the lubricating oil flow rate at the oil pump outlet, and collect and display the temperature and pressure at multiple measuring points on the test piece in real time. The heating unit also includes a pressure transmitter and a flow meter installed on the second pipeline; the data acquisition and monitoring unit is also used to obtain the lubricating oil pressure at the oil pump outlet through the pressure transmitter, and the data acquisition and monitoring unit is also used to obtain the lubricating oil flow rate at the oil pump outlet through the flow meter. The storage box has a first wire passage hole, a second wire passage hole, and a third wire passage hole on one side; the first end of the oil pump connection line passes through the first wire passage hole and connects to the oil pump, the first end of the pressure signal transmission line passes through the second wire passage hole and connects to the pressure transmitter signal, the second end of the pressure signal transmission line connects to the data acquisition and monitoring unit signal, the first end of the flow signal transmission line passes through the third wire passage hole and connects to the flow meter signal, and the second end of the flow signal transmission line connects to the data acquisition and monitoring unit signal. The data acquisition and monitoring unit includes a control cabinet, which has a second partition that divides the control cabinet into a first cabinet and a second cabinet. The first cabinet contains a circuit breaker, an integrated control module, an analog input module, a frequency converter, a relay, and a contactor. The second cabinet contains a thermocouple acquisition module, a switching power supply, and a heating power adjustment module. One side of the control cabinet is provided with a fourth, fifth, sixth, and seventh wire passage hole; the second end of the pressure signal transmission line passes through the fourth wire passage hole and connects to the integrated control module; the second end of the flow signal transmission line passes through the fifth wire passage hole and connects to the integrated control module; one end of the heating connection line is connected to the heating power adjustment module, which is also connected to the integrated control module; the other end of the heating connection line passes through the sixth wire passage hole and connects to the sheathed heater; and one end of the power line passes through the seventh wire passage hole and connects to the circuit breaker. The cabinet door of the second unit is equipped with multiple temperature signal line through-holes and multiple pressure signal line through-holes. One end of each temperature sensor signal line passes through the multiple temperature signal line through-holes and connects to one end of the thermocouple acquisition module. The other end of the thermocouple acquisition module connects to the input terminal of the analog input module. One end of each pressure sensor signal line passes through the multiple pressure signal line through-holes and connects to the input terminal of the analog input module. The output terminal of the analog input module connects to the integrated control module and the display screen. The lubricating oil heating box is surrounded by thermal insulation cotton, and the first partition is a hollow structure.

2. The portable lubricating oil heating and data monitoring and acquisition device according to claim 1, characterized in that, The cabinet doors of the first cabinet are equipped with a display screen and several signal indicator lights.

3. The portable lubricating oil heating and data monitoring and acquisition device according to claim 1, characterized in that, The RST terminal of the frequency converter is connected to the contactor, relay, and three-phase power supply in sequence. The control port of the frequency converter is connected to the integrated control module. The output terminal of the frequency converter is connected to the second end of the oil pump connection line. One end of the switching power supply is connected to the circuit breaker, and the other end of the switching power supply is connected to the integrated control module.

4. The portable lubricating oil heating and data monitoring and acquisition device according to claim 1 or 2, characterized in that, The circuit breaker, integrated control module, and analog input module are connected to the upper end of the second partition on one side of the first cabinet via the first fixing plate, while the frequency converter, relay, and contactor are connected to the lower end of the second partition on one side of the first cabinet via the second fixing plate.

5. The portable lubricating oil heating and data monitoring and acquisition device according to claim 1 or 2, characterized in that, The thermocouple acquisition module is fixed at the upper end of the second partition located on one side of the second cabinet, and the switching power supply and heating power adjustment module are fixed at the lower end of the second partition located on one side of the second cabinet.

6. The portable lubricating oil heating and data monitoring and acquisition device according to claim 1 or 2, characterized in that, A level gauge is also installed on one side of the lubricating oil heating tank.

7. The portable lubricating oil heating and data monitoring and acquisition device according to claim 1 or 2, characterized in that, An oil filter is installed on the first pipeline.

8. The portable lubricating oil heating and data monitoring and acquisition device according to claim 1 or 2, characterized in that, It also includes a terminal, which communicates with the data acquisition and monitoring unit.

Images