On-site calibration square cabin for transformer oil chromatography on-line monitoring device

Abstract

The embodiment of the utility model provides a transformer oil chromatography on-line monitoring device on-site calibration square cabin. The transformer oil chromatography on-line monitoring device on-site calibration square cabin comprises a cabin body; a standard oil generating device; a gas source; a high-precision calibration device; an oil gas pipeline system; a power supply system; an environment monitoring and regulation system; a walking device; and a power device. A standard laboratory verification environment which can be flexibly migrated and has an all-weather working capability is created, the field verification period of the transformer oil chromatography online monitoring device is greatly shortened, and the verification efficiency is improved; by optimizing the structure and the performance of the calibration device, the requirement of the calibration device for the working environment is reduced, the stability and the reliability of the calibration device in the field environment are improved, and the calibration accuracy is ensured.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of transformer oil chromatogram online monitoring, in particular to an on-site calibration cabin for a transformer oil chromatogram online monitoring device. Background Art

[0002] Traditional transformer oil chromatography monitoring mainly relies on offline laboratory analysis, which has the limitation of being unable to monitor in real time and detect potential faults in time. In order to overcome these shortcomings, transformer oil chromatography online monitoring devices have been developed, which can provide continuous oil quality analysis, thus realizing real-time monitoring of transformer status.

[0003] However, the existing oil chromatography online monitoring devices come from different manufacturers, have various models, and have uneven quality, which makes it difficult to ensure accuracy and stability during operation. In addition, the device may encounter problems such as internal device failure, oil sample pipeline blockage, or overall performance degradation during operation, which will affect the accuracy of oil sample gas component detection.

[0004] In order to ensure the accuracy and sensitivity of the transformer oil chromatogram online monitoring device and meet the high standards of the power grid for equipment status monitoring, it must be regularly calibrated and tested on site. The traditional on-site calibration method usually requires multiple people to carry a large number of equipment such as standard oil, high-precision standard calibration devices, communication equipment, etc. to the site for manual calibration one by one. In addition, since the high-precision standard calibration device itself has strict requirements on the working environment, the standard oil also needs to be configured in the laboratory before being brought to the site. This method is not only time-consuming, but also easily affected by environmental conditions such as high temperature and rainy days, resulting in low calibration efficiency and the risk of interruption. Utility Model Content

[0005] The embodiment of the utility model provides an on-site calibration cabin for a transformer oil chromatogram online monitoring device, so as to provide a standard laboratory calibration environment that can be flexibly migrated and has "all-weather" working capabilities, thereby solving the problems of low calibration efficiency and easy interruption when performing on-site calibration of the oil chromatogram online monitoring device.

[0006] The embodiment of the utility model provides a transformer oil chromatogram online monitoring device on-site calibration cabin, comprising: a cabin, a standard oil generating device, a gas source, a high-precision calibration device, an oil and gas pipeline system, a power supply system, an environmental monitoring and control system, a walking device and a power device, wherein the standard oil generating device, the gas source, the high-precision calibration device, the oil and gas pipeline system, the power supply system, the environmental monitoring and control system and the power device are arranged inside the cabin, and the walking device is arranged at the bottom of the cabin; the standard oil generating device, the gas source and the high-precision calibration device are respectively connected to the oil and gas pipeline system by pipelines, the power supply system is respectively electrically connected to the standard oil generating device, the high-precision calibration device, the environmental monitoring and control system and the power device, and the power device is electrically connected to the walking device and / or mechanically transmitted and / or communicated.

[0007] Furthermore, the cabin body is in the shape of a rectangular parallelepiped, including a reinforced structural frame, a protective layer, an internal lining and a thermal insulation material layer, wherein the reinforced structural frame is used to construct the cabin body, the protective layer covers the outside of the reinforced structural frame to provide protection, the internal lining is made of chemical-resistant material to adapt to the chemical environment, and the thermal insulation material layer is arranged between the protective layer and the internal lining to maintain the stability of the internal temperature of the cabin.

[0008] Furthermore, the power supply system includes a solar power supply system and / or a mains power supply system.

[0009] Furthermore, the walking device includes retractable rollers, and the retractable rollers are arranged at four corners of the cabin chassis.

[0010] Furthermore, the power device is a hydraulic power device.

[0011] Furthermore, the gas source is also used to provide power gas, and the power gas is used to provide thrust for the oil sample to flow in the oil and gas pipeline system to ensure that the oil sample can flow along a specified path.

[0012] Furthermore, the oil and gas pipeline system includes: an electric pipeline device, which is used to provide at least one calibration pipeline to the outside; multiple standard gas input pipelines, which are used to transport nitrogen, hydrogen or other standard gases according to different calibration requirements; multiple oil storage devices, which are used to store pure oil, waste oil and initial oil samples of different concentrations; at least one oil inlet pipeline, which is used to transport the initial oil sample of specified concentration in the oil storage device to the standard oil generating device; at least one oil outlet pipeline, which is used to output the standard oil sample prepared by the standard oil generating device to the calibration pipeline, so that the calibration pipeline transports the standard oil sample to the high-precision calibration device and the transformer oil chromatogram online monitoring device to be calibrated; at least one oil return pipeline, which is used to return used oil or waste oil to the corresponding oil storage device for recycling or storage.

[0013] Furthermore, the calibration pipeline includes a calibration oil inlet pipeline and a calibration oil return pipeline. The calibration oil inlet pipeline is used to transport the standard oil sample to the transformer oil chromatogram online monitoring device to be calibrated, and the calibration oil return pipeline is used to transport the calibrated and tested oil to the corresponding oil return pipeline.

[0014] Furthermore, the on-site calibration shelter of the transformer oil chromatogram online monitoring device further comprises: a calibration control system for calibrating and controlling calibration-related equipment;

[0015] Correspondingly, the calibration pipeline also includes a communication pipeline for transmitting the calibration data to the calibration control system in real time.

[0016] Furthermore, the transformer oil chromatogram online monitoring device on-site calibration shelter also includes: a shelter management system for controlling and data managing all equipment in the shelter.

[0017] The embodiment of the utility model provides an on-site calibration cabin for a transformer oil chromatogram online monitoring device, thereby creating a standard laboratory calibration environment that can be flexibly moved and has "all-weather" working capabilities, greatly shortening the on-site calibration period of the transformer oil chromatogram online monitoring device and improving the calibration efficiency; by optimizing the structure and performance of the calibration device, its requirements for the working environment are reduced, its stability and reliability in the on-site environment are improved, and the accuracy of the calibration is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of an on-site calibration cabin for a transformer oil chromatography online monitoring device provided in the first embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the interior layout of a cabin for on-site calibration of a transformer oil chromatogram online monitoring device provided in the second embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the right side structure of a transformer oil chromatogram online monitoring device field calibration cabin provided in the second embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the oil and gas pipeline layout of an on-site calibration cabin of a transformer oil chromatogram online monitoring device provided in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. In addition, the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. It should also be noted that, for ease of description, only parts related to the present invention are shown in the accompanying drawings, rather than all structures.

[0023] Embodiment 1

[0024] Figure 1 This is a schematic diagram of the structure of a transformer oil chromatogram online monitoring device field calibration cabin provided in the first embodiment of the utility model. The transformer oil chromatogram online monitoring device field calibration cabin can be used to provide a standard laboratory calibration environment that can be flexibly moved and has "all-weather" working capabilities, thereby solving the current problems of low calibration efficiency and easy interruption when performing field calibration of oil chromatogram online monitoring devices. Figure 1 As shown, the on-site calibration cabin of the transformer oil chromatogram online monitoring device specifically includes: a cabin body 101; a standard oil generating device 102, used to generate a standard oil sample; a gas source 103, used to provide the standard gas required to generate the standard oil sample; a high-precision calibration device 104, used to calibrate the transformer oil chromatogram online monitoring device; an oil and gas pipeline system 105, used to provide oil pipelines and gas pipelines for calibration; a power supply system 106, used to provide the required power for the operation of the cabin; an environmental monitoring and control system 107, used to monitor and control the temperature and humidity inside the cabin to provide a constant temperature and humidity environment required for calibration; a walking device 108, used to realize the autonomous movement of the cabin; a power device 109, used to provide power for the cabin to move autonomously.

[0025] Among them, the standard oil generating device 102, the gas source 103, the high-precision calibration device 104, the oil and gas pipeline system 105, the power supply system 106, the environmental monitoring and control system 107 and the power unit 109 are arranged inside the cabin 101, and the walking device 108 is arranged at the bottom of the cabin; the standard oil generating device 102, the gas source 103, the high-precision calibration device 104 are respectively connected to the oil and gas pipeline system 105 by pipeline, the power supply system is respectively electrically connected to the standard oil generating device 102, the high-precision calibration device 104, the environmental monitoring and control system 107 and the power unit 109, and the power unit 109 is electrically connected and / or mechanically transmitted and / or communicated with the walking device.

[0026] In one embodiment, the oil and gas pipeline system 105 is also used to provide an initial oil sample for calibration.

[0027] It is understandable that the calibration process first requires the preparation of a standard oil sample with a specific gas concentration. This can usually be achieved by using a standard oil generator 102, which can mix hydrogen or other specified gases with the initial oil sample according to the calibration requirements to prepare a standard oil sample with a specific gas concentration.

[0028] In one embodiment, the cabin body 101 is in the shape of a rectangular parallelepiped, and includes a reinforced structural frame, a protective layer, an internal lining and a thermal insulation material layer, wherein the reinforced structural frame is used to construct the cabin body, the protective layer covers the outside of the reinforced structural frame to provide protection, the internal lining is made of chemical-resistant materials to adapt to the chemical environment, and the thermal insulation material layer is arranged between the protective layer and the internal lining to maintain the stability of the internal temperature of the cabin.

[0029] In one embodiment, the power supply system 106 includes a solar power supply system and / or a mains power supply system.

[0030] In one embodiment, the walking device 108 includes retractable rollers for lifting, turning and walking of the cabin. The retractable rollers are arranged at the four corners of the chassis of the cabin body 101.

[0031] In one embodiment, the power device 109 is a hydraulic power device, for example, a hydraulic station, which is used to provide power for the retractable roller.

[0032] In one embodiment, the gas source 103 is also used to provide power gas, and the power gas is used to provide thrust for the oil sample to flow in the oil and gas pipeline system to ensure that the oil sample can flow along a specified path.

[0033] Optionally, nitrogen is used as the motive gas.

[0034] It can be understood that the necessary pressure is provided by the power gas to push the oil sample, thereby ensuring that the oil sample can flow along a predetermined path in the oil and gas pipeline system.

[0035] In one embodiment, the oil and gas pipeline system 105 includes: an electric pipeline device, which is used to provide at least one calibration pipeline to the outside; multiple standard gas input pipelines, which are used to transport nitrogen, hydrogen or other standard gases according to different calibration requirements; multiple oil storage devices, which are used to store pure oil, waste oil and initial oil samples of different concentrations; at least one oil inlet pipeline, which is used to transport the initial oil sample of specified concentration in the oil storage device to the standard oil generating device; at least one oil outlet pipeline, which is used to output the standard oil sample prepared by the standard oil generating device to the calibration pipeline, so that the calibration pipeline transports the standard oil sample to the high-precision calibration device and the transformer oil chromatogram online monitoring device to be calibrated; at least one oil return pipeline, which is used to return the used oil or waste oil to the corresponding oil storage device for recycling or storage.

[0036] In one embodiment, the oil and gas pipeline system 105 further includes a four-inlet and one-outlet valve group.

[0037] In one embodiment, the prepared standard oil sample is distributed to the calibration pipeline through a four-inlet-one-outlet valve group and an oil outlet pipeline. The specific steps are as follows:

[0038] 1) In the standard oil generating device 102, an oil sample of a specific concentration is prepared according to the calibration requirements, and is mixed with the oil sample using hydrogen or other specified gases.

[0039] 2) The four-input and one-output valve group selects one input according to the pre-set program or the operator's instructions. The valve group is designed in a four-select-one mode to ensure that only one oil sample is selected for output.

[0040] 3) The selected standard oil sample is output from the oil outlet port of the standard oil generating device 102 and enters the oil outlet pipeline through the corresponding port of the four-inlet-one-outlet valve group.

[0041] 4) The oil outlet pipeline transmits the standard oil sample to the calibration pipeline.

[0042] It can be understood that, through precise valve control and pipeline connection, accurate standard oil sample selection can be provided for calibration of transformer oil chromatography online monitoring device.

[0043] In one embodiment, the calibration pipeline is wound around the electric pipeline device.

[0044] It is understandable that the electric pipeline device can control the extension and retraction of the calibration pipeline through the electric actuator to achieve automatic connection and disconnection of the oil circuit. This design improves the accuracy of the oil circuit connection and the convenience of operation.

[0045] In one embodiment, the electric pipeline device controls the extension of the calibration pipeline through the following steps to ensure the correct connection of the calibration pipeline and the smooth transmission of the oil sample:

[0046] 1) Electric pipeline devices use an electric drive mechanism, including a motor or other electric actuator, to control the extension and retraction of the pipeline.

[0047] 2) The operator issues instructions through the control system to set the required oil circuit configuration, and the electric pipeline device performs corresponding actions according to the instructions.

[0048] 3) The electric actuator drives the pipeline device to extend, and correctly connects the calibration pipeline to the high-precision calibration device and the transformer oil chromatography online monitoring device to be calibrated.

[0049] 4) Through the communication module, the status of the calibration pipeline and the oil sample transmission are monitored in real time, and the data is transmitted to the calibration control system.

[0050] 5) In an emergency or after the operation is completed, the electric pipeline device can be automatically or manually retracted to reduce space occupancy and ensure equipment safety.

[0051] Optionally, an electric pipeline device is used in conjunction with a multi-way switching valve to ensure the correct oil path and oil sample flow direction.

[0052] Optionally, after confirming that the calibration pipeline is connected correctly, the electric pipeline device locks the connection through a mechanical locking or electromagnetic locking mechanism to ensure that the pipeline connection remains stable during operation.

[0053] Optionally, the electric line unit includes self-diagnostic and maintenance functions, ensuring its operational reliability and allowing the operator to make necessary adjustments.

[0054] Optionally, a side wing door is provided in conjunction with the electric pipeline device, and a side wing door cover covers the electric pipeline device to provide a working and maintenance passage for the electric pipeline device.

[0055] It can be understood that through the above steps, the electric pipeline device can accurately control the extension and positioning of the calibration pipeline to ensure that the oil sample can be smoothly transmitted to the relevant calibration equipment. This design improves the automation level of the calibration process, reduces the complexity of manual operation, and improves the overall calibration efficiency.

[0056] In one embodiment, the calibration pipeline includes a calibration oil inlet pipeline and a calibration oil return pipeline. The calibration oil inlet pipeline is used to transport a standard oil sample to a transformer oil chromatogram online monitoring device to be calibrated, and the calibration oil return pipeline is used to transport calibrated and tested oil to the corresponding oil return pipeline.

[0057] In one embodiment, the on-site calibration cabin of the transformer oil chromatography online monitoring device further includes: a calibration control system for calibrating and controlling calibration-related equipment; correspondingly, the calibration pipeline further includes a communication pipeline for transmitting calibration data to the calibration control system in real time.

[0058] In one embodiment, the communication pipeline is integrated with the electric pipeline device to achieve real-time transmission of calibration data. The calibration control system monitors the calibration process based on this data to ensure the accuracy and traceability of the calibration.

[0059] Optionally, the high-precision calibration device 104 uses a high-precision oil chromatograph.

[0060] In one embodiment, the steps of calibrating the transformer oil chromatogram online monitoring device by the high-precision calibration device 104 are as follows:

[0061] 1) Preparation of standard oil samples: First, a standard oil sample with a specific concentration is prepared using a standard oil generator according to the required calibration requirements.

[0062] 2) Standard oil sample transmission: The prepared standard oil sample is transmitted through the calibration pipeline to the high-precision standard calibration device and the transformer oil chromatogram online monitoring device to be calibrated.

[0063] 3) Measurement and analysis: The high-precision calibration device measures the transmitted standard oil sample and analyzes the concentration of specific gas components in the oil.

[0064] 4) Data comparison: The high-precision calibration device compares the measured data with the pre-set standard value or calibration curve to determine whether there is any deviation.

[0065] 5) Deviation correction: If there is a deviation between the measurement result and the standard value, the high-precision calibration device will adjust it according to the built-in calibration algorithm and output a correction signal.

[0066] 6) Adjustment of online monitoring device: The correction signal is transmitted to the transformer oil chromatography online monitoring device, and the monitoring device adjusts its measurement parameters according to the correction signal to reduce the measurement error.

[0067] 7) Cyclic calibration: To ensure the accuracy of the calibration, it may be necessary to cycle the above steps multiple times until the measurement results of the online monitoring device are consistent with the standard value or within an acceptable error range.

[0068] 8) Data Recording: All measurement data and correction parameters during the calibration process will be recorded and stored for future tracking and review.

[0069] 9) Communication and feedback: The high-precision calibration device feeds back the calibration results to the calibration control system in real time through the communication interface, and can also be viewed and analyzed by operators.

[0070] 10) Completion of calibration: Once the measurement accuracy of the transformer oil chromatography online monitoring device meets the requirements, the calibration process is completed and the equipment can be put back into use.

[0071] It is understandable that the core function of the high-precision calibration device 104 is to provide a reliable reference standard, and to ensure the measurement accuracy and reliability of the transformer oil chromatogram online monitoring device by comparing the measurement results with the transformer oil chromatogram online monitoring device. This process is crucial to maintaining high standards for power grid equipment status monitoring.

[0072] In one embodiment, the transformer oil chromatogram online monitoring device on-site calibration shelter further includes: a shelter management system for controlling and data managing all equipment in the shelter.

[0073] In one embodiment, the cabin management system is responsible for collecting information and controlling all equipment in the cabin, including but not limited to the environmental monitoring and control system, the power unit and the power supply system.

[0074] In one embodiment, the shelter workflow is as follows:

[0075] 1) Arrive at the verification site: Use the retractable rollers under the chassis of the shelter to move the shelter to the designated location and prepare to start the on-site verification.

[0076] 2) Start energy supply: Confirm that the solar power supply system or the mains power supply is normal to ensure that the energy needs of the cabin are met.

[0077] 3) Set up a suitable working environment: Start the environmental monitoring and control system to automatically adjust the temperature and humidity in the cabin according to preset parameters to provide a standardized environment for calibration operations.

[0078] 4) Start the standard oil generating device: Operate the standard oil generating device to prepare oil samples of specific concentration according to the predetermined calibration plan.

[0079] 5) Calibration pipeline connection: Operate the electric pipeline device to ensure that the calibration pipeline is correctly connected to the high-precision calibration device and the transformer oil chromatography online monitoring device to be calibrated.

[0080] 6. Transmission of calibration oil samples: The prepared standard oil samples are transmitted to the high-precision calibration device and the transformer oil chromatogram online monitoring device to be calibrated through the calibration pipeline.

[0081] 7) Execute the calibration procedure: Start the high-precision calibration device, accept the oil sample according to the calibration process, and execute the calibration procedure.

[0082] 8) Real-time data monitoring: Through the communication pipeline connected to the high-precision calibration device, the calibration data is monitored and recorded in real time to ensure the accuracy and traceability of the calibration process.

[0083] 9) Oil sample circulation and recovery: After calibration, the oil sample will be circulated to the next calibration step or recovered to the oil storage device according to the quality of the oil sample.

[0084] 10) System status monitoring: Continuously monitor the operating status of all equipment in the cabin to ensure the continuity and stability of the calibration process.

[0085] 11) Emergency response preparation: When the system monitors an abnormal situation, the emergency plan will be immediately activated and corresponding measures will be taken, such as closing the oil circuit, stopping the calibration procedure, evacuating personnel, etc.

[0086] 12) Completion of calibration and equipment maintenance: After completing the calibration, shut down the relevant equipment and perform necessary equipment cleaning and maintenance work to maintain equipment performance.

[0087] The embodiment of the utility model provides an on-site calibration cabin for a transformer oil chromatogram online monitoring device, thereby creating a standard laboratory calibration environment that can be flexibly moved and has "all-weather" working capabilities, greatly shortening the on-site calibration period of the transformer oil chromatogram online monitoring device and improving the calibration efficiency; by optimizing the structure and performance of the calibration device, its requirements for the working environment are reduced, its stability and reliability in the on-site environment are improved, and the accuracy of the calibration is guaranteed.

[0088] Embodiment 2

[0089] Figure 2 This is a schematic diagram of the interior plan layout of a transformer oil chromatography online monitoring device on-site calibration cabin provided in Example 2 of the utility model, which shows the internal structure and layout of the cabin in detail. Figure 3 The right side structural diagram of a transformer oil chromatogram online monitoring device field calibration cabin provided in the second embodiment of the utility model highlights the workbench and related equipment. Figure 4 It is a schematic diagram of the oil and gas pipeline layout of an on-site calibration cabin of a transformer oil chromatogram online monitoring device provided in Example 2 of the utility model, which describes in detail the connection method of the oil cylinder storage area and related pipelines.

[0090] like Figure 2 , Figure 3 and Figure 4 As shown, the online oil chromatography field calibration cabin of the utility model is mainly composed of the following parts: cabin body 1, power distribution cabinet 2, oil cylinder storage area 3, equipment room 4, workbench 5, standard oil generating device 6, rear lower flap door 7, side door 8, skylight 9, side wing door 10, electric pipeline device 11, retractable roller 12, high-precision calibration device 13, and pure oil cylinder 14.

[0091] The cabin of the utility model has a cabin body 1 in the shape of a rectangular parallelepiped, which is divided into front and back in the length direction. The front part is an equipment room 4, and the equipment room 4 is equipped with an energy storage device of a solar power supply system, a constant temperature and humidity system, a hydraulic station, standard gas and power gas. A solar panel is installed on the top of the cabin body 1, and its output is electrically connected to the input of the energy storage device, and the cable enters the equipment room 4 through the wall of the cabin body 1.

[0092] A standard oil generating device 6 is provided at the rear of the cabin 1, a pure oil cylinder 14 is provided at the side thereof, and a rear lower flap door 7 is provided at the tail end.

[0093] The cabin 1 is divided into three parts: the left side, the right side and the middle walkway. The left side includes the oil cylinder storage area 3 and the power distribution cabinet 2, and the right side is provided with a workbench 5, in which a high-precision standard calibration device 13 is installed.

[0094] A left door 8 is provided on the left wall of the cabin body 1 , and a right door 8 is provided on the right wall, both of which are located between the power distribution cabinet 2 and the standard oil generating device 6 .

[0095] An electric pipeline device 11 and a side wing door 10 are embedded in the right outer wall of the cabin body 1 , and the side wing door 10 covers the electric pipeline device 11 .

[0096] A lighting window 9 is provided above the workbench 5 .

[0097] The cabin 1 is welded from a steel structure frame, with an outer protective steel plate on the outside and a wall panel made of chemical-resistant material on the inside, and a fire-resistant insulation layer is filled between the wall panel and the outer steel plate.

[0098] The workroom and equipment room 4 in the middle and rear of the cabin 1 are separated by partitions.

[0099] The oil cylinder storage area 3 is provided with a plurality of oil cylinders, including a standard oil cylinder, an oil sample cylinder to be tested, and a waste oil cylinder.

[0100] Retractable rollers 12 are provided at the four corners of the chassis of the cabin 1 for easy movement.

[0101] The power distribution cabinet 2 serves as the main control box of the shelter, which includes the control of the mains power supply, the safety power supply device, the solar power supply system, and the rear lower flap door 7.

[0102] The constant temperature and humidity system consists of an air conditioning unit, a humidifier, temperature and humidity sensors and a control system, providing a stable laboratory environment for on-site calibration.

[0103] Pipelines and gas lines related to oil chromatography on-site calibration are installed under the chassis of the shelter.

[0104] The oil and gas circuits for on-site calibration of online oil chromatography include: standard oil generator 6, pure oil cylinder 14, oil storage cylinder in oil storage area 3, high-precision standard calibration device 13, electric pipeline device 11, and six standard gas input pipelines G1-G6. These pipelines correspond to input nitrogen, hydrogen, nitrogen, nitrogen (spare), nitrogen, and hydrogen respectively.

[0105] The first standard gas input pipeline G1 and the second standard gas input pipeline G2 are connected to the standard gas input end of the standard oil generating device 6; the third standard gas input pipeline G3 is connected to each cylinder in the cylinder storage area 3, the fourth standard gas input pipeline G4 is connected to the standard gas input end of the pure cylinder 14, and the fifth standard gas input pipeline G5 and the sixth standard gas input pipeline G6 are connected to the standard gas input end of the high-precision standard calibration device 13.

[0106] It can be understood that the first standard gas input pipeline G1 and the second standard gas input pipeline G2 are directly connected to the standard gas input end of the standard oil generating device 6, which means that they can provide the standard oil generating device with the required specific gas, such as nitrogen or hydrogen, for the preparation of the oil sample. The third standard gas input pipeline G3 is connected to each oil cylinder in the oil cylinder storage area 3. Such a design allows independent gas supply to different oil cylinders in the storage area to facilitate the control of the transportation and gas concentration of the oil sample. The fourth standard gas input pipeline G4 is connected to the standard gas input end of the pure oil cylinder 14 to ensure that the pure oil cylinder can receive pure gas for preparation or cleaning of the pipeline. The fifth standard gas input pipeline G5 and the sixth standard gas input pipeline G6 are respectively connected to the standard gas input end of the high-precision standard calibration device 13 to provide the calibration device with precisely controlled gas to achieve a high-precision calibration process.

[0107] Among them, one or more can be designed as backup gas input to ensure that the system can continue to operate when there is a problem with the main gas supply path, enhancing the reliability and flexibility of the system. The design of multiple gas input pipelines provides safety redundancy, and even if a gas pipeline fails, it will not cause the entire system to stop operating.

[0108] Each pipeline can be controlled by a corresponding valve (such as shut-off valve Q1-Q7), allowing the operator to precisely adjust the gas flow and pressure entering each component.

[0109] Through different gas input pipelines, the cabin can adapt to different calibration needs, such as different gas types or concentration requirements, which increases the flexibility and adaptability of calibration.

[0110] The independent piping design simplifies maintenance and repair processes because one pipeline can be operated independently without affecting the operation of other pipelines or the entire system.

[0111] If new gas types need to be added or the gas supply configuration needs to be changed in the future, the existing multi-channel piping design provides an easily expandable interface without requiring large-scale changes to the existing system.

[0112] The connection relationship of the six-way standard gas input pipeline is intended to provide a flexible, reliable, and precisely controlled gas supply system to meet the diverse needs of the online oil chromatography field calibration cabin under different working conditions.

[0113] The oil storage cylinders of the oil storage area 3 store oils of different concentrations respectively. Each oil cylinder is provided with an output pipeline G7 and an oil return pipeline G8. The output pipeline G7 is connected in series with a first stop valve Q1, and the oil return pipeline G8 is connected in series with a second stop valve Q2.

[0114] The oil input pipeline G9 is connected to the first oil inlet end of the two-inlet and four-outlet valve group 62 of the standard oil generating device 6. A third stop valve Q3 is designed on the oil input pipeline G9. The four oil outlet ends of the two-inlet and four-outlet valve group 62 are connected to the return oil end of the standard oil generating device 6 and the oil inlet end of the pure oil cylinder 14 through pipelines.

[0115] A seventh stop valve Q7 is provided on the first oil inlet pipeline G10 of the clean oil cylinder 14 , and the oil outlet end of the clean oil cylinder 14 is connected to the clean oil inlet end of the standard oil generating device 6 through a pipeline.

[0116] The mixed oil outlet pipe, high oil outlet pipe, middle oil outlet pipe and low oil outlet pipe of the standard oil generating device 6 are respectively connected to the four oil inlet ends of the four-inlet-one-outlet valve group 61, the oil outlet end of the four-inlet-one-outlet valve group 61 is connected to the first port of the first three-way switching valve A1 through the oil outlet pipeline G11, the second port of the first three-way switching valve A1 is connected to the calibration oil output pipeline G12, and the third port of the first three-way switching valve A1 is connected to the inlet of the pure oil cylinder 14 after being connected in series with the sixth stop valve Q6 through the second oil inlet pipeline G16.

[0117] The calibration oil output pipeline G12 is provided with four calibration oil pipelines, three of which are calibration oil inlet pipelines G13, and one calibration oil pipeline is connected to the high-precision standard calibration device 13. The oil outlet of the high-precision standard calibration device 13 is connected to the inlet of the waste oil cylinder through the return oil pipeline G15, and the oil after calibration and detection is connected to the first port of the second three-way switching valve A2 through the calibration oil circuit G14, and the second port of the second three-way switching valve A2 is connected to the oil inlet of the return oil pipeline G8 of each oil cylinder through a pipeline, and the third port of the second three-way switching valve A2 is connected to the first port and the third port of the vent valve A3 and the fifth stop valve Q5 in sequence through a pipeline, and then connected to the second inlet of the two-inlet and four-outlet valve group 62.

[0118] Three calibration oil inlet pipelines G13 and corresponding calibration oil circuits G14 are respectively arranged on three sets of electric pipeline devices 11. The electric pipeline device 11 can provide three calibration oil circuits. Each calibration oil circuit also includes a communication pipeline for data transmission.

[0119] The first three-way switching valve A1, the second three-way switching valve A2, and the air release valve A3 are all manually operated.

[0120] It can be understood that the valves in the oil circuit system (such as the four-inlet and one-outlet valve group 61, the first three-way switching valve A1, the second three-way switching valve A2, and the air release valve A3) can control the flow direction of the oil sample. These valves can realize precise switching and distribution of the oil circuit according to the instructions of the control system.

[0121] In this embodiment, the cabin 1 is a standard 6m integrated cabin, which is suitable for existing lifting and carrying equipment.

[0122] The standard oil generating device 6 is located at the rear of the cabin, and the power supply source is the mains electricity or solar power supply system; the oil cylinder in the oil cylinder storage area 3 stores standard oil, oil samples to be tested and waste oil; the high-precision calibration device 13 inside the workbench 5 is used for standard comparison; the hydraulic station provides power for the retractable roller 12.

[0123] The power distribution cabinet 2 serves as a master control box, which includes mains power control, safety power device, solar power supply system control, and rear lower flap door 7 control.

[0124] The lower flap door 7 is opened and closed by an electric winch, the left door 8 and the right door 8 are electric doors, and the side wing door 10 provides a passage for the electric pipeline device 11.

[0125] The high-precision standard calibration device 13 adopts an oil chromatograph.

[0126] The constant temperature and humidity system provides a stable environment for on-site calibration.

[0127] The oil and gas lines under the chassis of the shelter are as follows Figure 3 shown.

[0128] The oil cylinders in the oil cylinder storage area 3 store the configured oil, and nitrogen is used as the power gas to push the oil through the two-inlet and four-outlet valve group 62.

[0129] The standard oil generating device 6 uses hydrogen to prepare the gas concentration in the oil, and the finished oil is output to the calibration oil inlet pipeline G13 and the standard calibration device 13 through the four-inlet-one-outlet valve group 61.

[0130] When in use, according to the calibration requirements, the oil in the cylinder storage area 3 is selected and enters the standard oil generating device 6 through the oil input pipeline G9, the third stop valve Q3, and the two-inlet and four-outlet valve group 62. At the same time, hydrogen enters the standard oil generating device 6 from the second standard gas input pipeline G2 to prepare the hydrogen concentration in the oil, and then outputs it to the calibration oil pipeline.

[0131] Of the four calibration oil pipelines on the calibration oil output pipeline G12, three are used for calibration and one is connected to the standard calibration device 13. The calibrated oil is controlled by the return oil pipeline G15 and the second three-way switching valve A2, and can be returned to the oil cylinder for storage or enter the standard oil generating device 6 for circulation.

[0132] Oils of different concentrations are prepared for calibration, and three calibration oil circuits are provided through the electric pipeline device 11, including a calibration oil inlet pipeline G13, a calibration oil circuit G14 and a communication pipeline.

[0133] The clean oil cylinder 14 stores clean oil for preparing oil and cleaning pipelines. The clean oil in the clean oil cylinder 14 enters the standard oil generator 6 under the action of nitrogen in the fourth standard gas input pipeline G4, and the standard gas in the second standard gas input pipeline G2 is also introduced into the standard oil generator 6 to prepare standard oil.

[0134] The utility model can be equipped with a cabin management system to collect and control information of all equipment in the cabin.

[0135] The electric pipeline device 11 can provide 3-way verification or calibration oil circuits, and the bleed valve A3 is used to release the air in the return oil.

[0136] The utility model can also be equipped with an on-site calibration system to perform calibration control on relevant calibration equipment.

[0137] The standard gas and power gas in the first to sixth standard gas pipelines are arranged in the equipment room 4.

[0138] Exemplarily, the shelter design is as follows:

[0139] 1) Design a movable oil chromatography analysis shelter with a steel structure frame, covered with protective steel plates, lined with chemical-resistant wall panels, and filled with fire-resistant insulation materials between the wall panels and the protective steel plates to adapt to various complex environments. The dimensions of the shelter are 6 meters long, 3 meters wide, and 3 meters high. The thickness of the protective steel plate is 10 mm, the thickness of the chemical-resistant wall panels is 5 mm, and the thickness of the fire-resistant insulation materials is 100 mm.

[0140] 2) Install a constant temperature and humidity system inside the shelter, and ensure the stability of the internal environment of the shelter through air conditioning units, humidifiers, temperature and humidity sensors and control systems to meet the working environment requirements of high-precision calibration devices. Set the temperature to 20°C, the humidity to 50%, and the error to be controlled within ±1%.

[0141] 3) An oil cylinder storage area and a power distribution cabinet are set up in the shelter. The oil cylinder storage area is equipped with a variety of oil cylinders for storing oil samples and waste oil of different concentrations, and the flow of oil is controlled by precise stop valves. The power distribution cabinet, as the nerve center of the shelter, integrates functions such as mains control, safety power device, solar power supply system control, and rear lower flap door control.

[0142] 4) Left and right doors are respectively provided on both sides of the shelter to facilitate personnel entry and exit. The right outer wall is built with electric pipeline devices and side wing doors, which cover the electric pipeline devices to protect them from the external environment.

[0143] 5) There is a lighting window above the workbench to ensure sufficient natural light. The workbench is equipped with a high-precision calibration device. Through cooperation with the electric pipeline device, the automatic control and data transmission of the calibration oil circuit are realized.

[0144] 6) Various oil cylinders are equipped in the oil cylinder storage area to store standard oil, oil samples to be tested and waste oil. Each oil cylinder is equipped with an output pipeline and an oil return pipeline, which are controlled by a stop valve. The standard oil generator is connected to the oil cylinder through the oil input pipeline, and the oil is mixed and output through a series of valves.

[0145] 7) The oil outlet pipeline of the standard oil generator is connected to the calibration oil output pipeline, which is divided into four calibration oil pipelines, three of which are used for calibration and the other is connected to the high-precision calibration device. The calibrated oil returns to the waste oil tank through the return oil pipeline or re-enters the standard oil generator for recycling.

[0146] 8) Three calibration oil circuits are provided in the electric pipeline device, each of which contains a communication pipeline to realize data transmission. The manual three-way switching valve is used to accurately control the oil circuit and gas circuit. Dedicated oil circuits and gas circuits are preset under the chassis of the shelter, providing necessary fluid support for on-site calibration.

[0147] 9) The power distribution cabinet serves as the control center of the shelter, integrating functions such as mains control, safety power device, solar power supply system control, and rear lower flap door control. The constant temperature and humidity system ensures the stability of the internal environment of the shelter through air conditioning units, humidifiers, temperature and humidity sensors and control systems to meet high-precision calibration requirements.

[0148] 10) The shelter can also be equipped with a shelter management system and an on-site calibration system to achieve intelligent monitoring and calibration control of all equipment in the shelter. The location of these systems can be designed in the power distribution cabinet to facilitate centralized management by operators.

[0149] 11) Standard gas and power gas facilities are located in the equipment room to provide necessary gas support for the entire system.

[0150] The beneficial effects of this embodiment are as follows: 1. Strong adaptability: There is an insulation interlayer between the outer layer and the inner layer of the square cabin wall, which has good heat insulation and heat preservation effects and is suitable for various complex environments. At the same time, a constant temperature and humidity system is installed inside the square cabin, which can provide a stable laboratory environment, meet the working environment requirements of the high-precision calibration device, and ensure the normal operation of personnel and equipment in the square cabin in various regional environments. 2. Comprehensive functions: The square cabin contains a power supply system, an oil and gas system, and electrical control, which can realize the automatic calibration of 3 online oil chromatographs at the same time, providing protection for on-site staff. 3. Good continuity of the power supply system: The main power supply of the square cabin is municipal power supply and solar power supply, which solves the use requirements of temporary power outages, increases convenience and practicality, and is more in line with actual use needs. 4. Improve verification efficiency and accuracy: The on-site verification cycle of the transformer oil chromatograph online monitoring device is greatly shortened, and the verification efficiency is improved; the stability and reliability of the verification device in the on-site environment are improved, and the accuracy of the verification is guaranteed; the automatic collection, processing and analysis of the verification data are realized, and the accuracy and efficiency of the verification are further improved. 5. High degree of intelligence: The shelter can also be equipped with a shelter management system and a calibration control system to achieve intelligent monitoring and calibration control of all equipment in the shelter. The location of these systems can be designed in the power distribution cabinet to facilitate centralized management by operators.

[0151] Through the above description of the implementation method, the technicians in the relevant field can clearly understand that the utility model can be implemented by means of software and necessary general hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the utility model can be essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the utility model.

[0152] It is worth noting that in the embodiment of the on-site calibration cabin of the above-mentioned transformer oil chromatography online monitoring device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present utility model.

[0153] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A transformer oil chromatogram online monitoring device on-site calibration shelter, characterized in that: include: A cabin, a standard oil generating device, an air source, a high-precision calibration device, an oil and gas pipeline system, a power supply system, an environmental monitoring and control system, a traveling device and a power device. The standard oil generating device, the air source, the high-precision calibration device, the oil and gas pipeline system, the power supply system, the environmental monitoring and control system and the power device are arranged inside the cabin, and the traveling device is arranged at the bottom of the cabin; the standard oil generating device, the air source and the high-precision calibration device are respectively connected to the oil and gas pipeline system by pipelines, the power supply system is respectively electrically connected to the standard oil generating device, the high-precision calibration device, the environmental monitoring and control system and the power device, and the power device is electrically connected to the traveling device and / or mechanically transmitted and / or communicated.

2. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 1 is characterized in that: The cabin body is in the shape of a rectangular parallelepiped, and includes a reinforced structural frame, a protective layer, an internal lining layer and a thermal insulation material layer, wherein the reinforced structural frame is used to construct the cabin body, the protective layer covers the outside of the reinforced structural frame to provide protection, the internal lining layer is made of chemical-resistant material to adapt to the chemical environment, and the thermal insulation material layer is arranged between the protective layer and the internal lining layer to maintain the stability of the internal temperature of the cabin.

3. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 1 is characterized in that: The power supply system includes a solar power supply system and / or a mains power supply system.

4. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 1 is characterized in that: The walking device comprises retractable rollers, and the retractable rollers are arranged at four corners of the cabin chassis.

5. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 1 is characterized in that: The power device is a hydraulic power device.

6. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 1, characterized in that: The gas source is also used to provide power gas, and the power gas is used to provide thrust for the oil sample to flow in the oil and gas pipeline system to ensure that the oil sample can flow along a specified path.

7. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 1, characterized in that: The oil and gas pipeline system includes: an electric pipeline device, which is used to provide at least one calibration pipeline to the outside; multiple standard gas input pipelines, which are used to transport nitrogen, hydrogen or other standard gases according to different calibration requirements; multiple oil storage devices, which are used to store pure oil, waste oil and initial oil samples of different concentrations; at least one oil inlet pipeline, which is used to transport the initial oil sample of specified concentration in the oil storage device to the standard oil generating device; at least one oil outlet pipeline, which is used to output the standard oil sample prepared by the standard oil generating device to the calibration pipeline, so that the calibration pipeline transports the standard oil sample to the high-precision calibration device and the transformer oil chromatogram online monitoring device to be calibrated; at least one oil return pipeline, which is used to return used oil or waste oil to the corresponding oil storage device for recycling or storage.

8. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 7, characterized in that: The calibration pipeline includes a calibration oil inlet pipeline and a calibration oil return pipeline. The calibration oil inlet pipeline is used to transport the standard oil sample to the transformer oil chromatogram online monitoring device to be calibrated, and the calibration oil return pipeline is used to transport the calibrated and tested oil to the corresponding oil return pipeline.

9. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to claim 8, characterized in that: Also includes: Calibration control system, used to calibrate and control calibration-related equipment; Correspondingly, the calibration pipeline also includes a communication pipeline for transmitting the calibration data to the calibration control system in real time.

10. The on-site calibration shelter for transformer oil chromatogram online monitoring device according to any one of claims 1 to 9, characterized in that: Also includes: The cabin management system is used to control and manage data of all equipment in the cabin.

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