Sampling device for oil sample detection of hydraulic power plant transformer

Abstract

The invention discloses a sampling device for hydraulic power plant transformer oil sample detection, which comprises a sampling needle used for penetrating through a transformer oil sealing layer and extracting an oil sample; the control unit is used for operating the movement of the sampling needle and controlling the sampling amount; the storage container is used for collecting and storing the extracted oil sample; the sensor is used for monitoring the state of the oil sample and the pressure change in the sampling process, personal errors are reduced through automatic sampling, and the sampling accuracy and repeatability are improved; secondly, the potential pollution of an oil sample to the environment is effectively avoided through the sealing and anti-leakage design, and the operation safety is enhanced; furthermore, the safety and the integrity of the sampled data are ensured by the built-in data recording and encrypting functions, and the reliability of the data is improved; in addition, the real-time monitoring and intelligent analysis capability provides powerful support for preventive maintenance and fault diagnosis of the transformer, and is helpful for prolonging the service life of equipment and reducing the accidental downtime.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment sampling, in particular to a sampling device for detecting transformer oil samples in a hydropower plant. Background Art

[0002] Transformers are key equipment in hydropower plants. In long-term operation, transformer oil, as an insulating and cooling medium, has a direct impact on the safety and efficiency of the transformer. Regular testing of transformer oil samples is an important means to ensure the normal operation of the transformer. However, existing sampling devices have many shortcomings, such as possible contamination of oil samples during sampling, low sampling efficiency, and difficulty in achieving automated sampling. These problems limit the accuracy and convenience of transformer oil sample testing. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the fact that the above-mentioned existing sampling devices for detecting transformer oil samples in hydropower plants may contaminate the oil samples during the sampling process, have low sampling efficiency, and are difficult to achieve automated sampling, these problems limit the accuracy and convenience of transformer oil sample detection, and the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a sampling device for detecting oil samples of transformers in hydropower plants.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a sampling device for detecting oil samples of a hydropower plant transformer, comprising a sampling needle for penetrating the transformer oil sealing layer and extracting oil samples; a control unit for operating the movement of the sampling needle and controlling the sampling volume; a storage container for collecting and storing the extracted oil samples; and a sensor for monitoring the state of the oil sample and the pressure changes during the sampling process.

[0007] As a preferred solution of the sampling device for detecting oil samples of transformers in hydropower plants described in the present invention, the control unit further includes a user interface for setting the sampling volume and sampling position; and a driving mechanism for driving the sampling needle to move to a specified position according to user settings.

[0008] As a preferred solution of the sampling device for detecting oil samples of transformers in hydropower plants described in the present invention, the sensor includes a pressure sensor for maintaining a constant sampling pressure to prevent oil sample contamination; and a measuring sensor for accurately measuring the amount of extracted oil samples.

[0009] As a preferred solution of the sampling device for detecting oil samples of transformers in hydropower plants of the present invention, the storage container is designed to be sealable to protect the oil sample from the influence of the external environment;

[0010] The storage container has the following characteristics: it is easy to disassemble, which is convenient for transferring the oil sample and cleaning the container; it has a temperature control function to maintain the oil sample at a suitable temperature to prevent the oil quality from changing; it is equipped with an anti-leakage valve to ensure that the oil sample will not leak during sampling, transfer and storage;

[0011] The storage container also includes:

[0012] a tag in communication with the control unit and used to store identification information of the oil sample and sampling conditions;

[0013] A built-in oil quality sensor is used to monitor the electrical characteristics and chemical composition of the oil sample in real time.

[0014] As a preferred solution of the sampling device for detecting oil samples of transformers in hydropower plants of the present invention, the sampling device further comprises a data recording unit for automatically recording sampling data and time;

[0015] The data recording unit has the following functions: it can record the sampling time, date and sampling amount; it has data storage function, can save sampling records for a long time; it can transmit sampling data to the remote monitoring system by wireless or wired means;

[0016] The data recording unit further comprises,

[0017] an encryption module to ensure the security and integrity of sampled data;

[0018] A user authentication system to control access to sampled data.

[0019] As a preferred embodiment of the sampling device for detecting oil samples of transformers in hydropower plants of the present invention, it also includes a sampling method using the sampling device, comprising the following steps:

[0020] Set sampling parameters through the user interface;

[0021] Drive the sampling needle to the specified position of the transformer oil sealing layer;

[0022] Penetrate the seal and extract a predetermined amount of oil sample;

[0023] Collect oil samples into storage containers and seal them;

[0024] Record sampling data and time;

[0025] And, the sampling method also includes the following steps,

[0026] Before sampling, the control unit automatically evaluates environmental conditions, such as temperature and humidity, to ensure standardized sampling conditions;

[0027] During the sampling process, the control unit automatically adjusts the sampling parameters based on real-time monitoring data to adapt to changes in oil sample characteristics;

[0028] After sampling is completed, the control unit generates a sampling report including the oil sample status, sampling conditions and recommended maintenance measures.

[0029] As a preferred solution of the sampling device for detecting oil samples of transformers in hydropower plants of the present invention, the sampling method further comprises the following steps:

[0030] Before sampling, the control unit automatically checks the status of the sampling needle and storage container;

[0031] During the sampling process, the control unit monitors the sampling pressure and oil sample flow in real time to ensure the accuracy of sampling;

[0032] After sampling is completed, the control unit automatically performs a cleaning procedure for the sampling needle and storage container in preparation for next use.

[0033] As a preferred solution of the sampling device for detecting oil samples of transformers in hydropower plants according to the present invention, the sampling method is applicable to the following scenarios:

[0034] Regular maintenance inspections to ensure continued stability of transformer oil;

[0035] Fault diagnosis, quickly respond to changes in transformer oil quality, and troubleshoot problems;

[0036] Research and development, collect oil sample data under different working conditions, and optimize transformer operation and maintenance strategies;

[0037] Wherein, the method further comprises,

[0038] An oil sample pre-processing step used to prepare the oil sample for laboratory analysis;

[0039] an interface to the laboratory information system for automatic uploading of sampling data and receiving analytical results;

[0040] A predictive maintenance system that uses oil sample data to predict transformer maintenance needs and failure risks.

[0041] As a preferred solution of the sampling device for detecting transformer oil samples in hydropower plants described in the present invention, the sampling needle is made of anti-corrosion material to prevent chemical reaction with transformer oil; the sampling needle is designed as a retractable structure to reduce exposure of the sampling needle in a non-sampling state and avoid contamination.

[0042] As a preferred solution of the sampling device for detecting oil samples of transformers in hydropower plants of the present invention, wherein: the control unit further comprises a fault diagnosis module for monitoring the operating status of the sampling device, automatically detecting and reporting potential faults;

[0043] The adaptive adjustment algorithm automatically adjusts the sampling parameters to optimize the sampling effect according to the historical sampling data and the characteristics of the transformer oil.

[0044] The beneficial effects of the present invention are as follows: human errors are reduced through automated sampling, and the accuracy and repeatability of sampling are improved; secondly, the sealing and anti-leakage design effectively avoids the potential pollution of the oil sample to the environment, and enhances the safety of operation; thirdly, the built-in data recording and encryption functions ensure the security and integrity of the sampling data, and improve the reliability of the data; in addition, the real-time monitoring and intelligent analysis capabilities provide strong support for the preventive maintenance and fault diagnosis of the transformer, which helps to extend the service life of the equipment and reduce unexpected downtime. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the specification.

[0046] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0048] Example 1

[0049] A sampling device for detecting oil samples of a transformer in a hydropower plant is provided, comprising a sampling needle for penetrating an oil sealing layer of the transformer and extracting oil samples; a control unit for operating the movement of the sampling needle and controlling the sampling amount; a storage container for collecting and storing the extracted oil samples; and a sensor for monitoring the state of the oil sample and the pressure change during the sampling process.

[0050] Specifically, the control unit further includes a user interface for setting the sampling volume and sampling position; and a driving mechanism for driving the sampling needle to move to a specified position according to user settings.

[0051] Furthermore, the sensor includes a pressure sensor for maintaining a constant sampling pressure to prevent oil sample contamination; and a measurement sensor for accurately measuring the amount of extracted oil sample.

[0052] Specifically, the storage container is designed to be sealable to protect the oil sample from the external environment; the storage container has the following characteristics: easy disassembly, convenient transfer of the oil sample and cleaning of the container; temperature control function to maintain the oil sample at a suitable temperature to prevent changes in oil quality; equipped with an anti-leakage valve to ensure that the oil sample will not leak during sampling, transfer and storage; the storage container also includes a label that communicates with the control unit to store the identification information and sampling conditions of the oil sample; a built-in oil quality sensor for real-time monitoring of the electrical properties and chemical composition of the oil sample.

[0053] Furthermore, the sampling device also includes a data recording unit for automatically recording sampling data and time; the data recording unit has the following functions: it can record the sampling time, date and sampling amount; it has a data storage function and can preserve the sampling records for a long time; it can transmit the sampling data to the remote monitoring system wirelessly or wired; the data recording unit further includes an encryption module for ensuring the security and integrity of the sampling data; and a user authentication system for controlling access rights to the sampling data.

[0054] Specifically, it also includes a sampling method using the above-mentioned sampling device, including the following steps: setting sampling parameters through a user interface; driving the sampling needle to a specified position of the transformer oil sealing layer; penetrating the sealing layer and extracting a predetermined amount of oil sample; collecting the oil sample into a storage container and sealing it; recording the sampling data and time; and the sampling method also includes the following steps: before sampling, the control unit automatically evaluates environmental conditions, such as temperature and humidity, to ensure the standardization of sampling conditions; during the sampling process, the control unit automatically adjusts the sampling parameters according to real-time monitoring data to adapt to changes in oil sample characteristics; after sampling is completed, the control unit generates a sampling report, including the oil sample status, sampling conditions and recommended maintenance measures.

[0055] Furthermore, the sampling method also includes the following steps: before sampling, the control unit automatically checks the status of the sampling needle and the storage container; during the sampling process, the control unit monitors the sampling pressure and oil sample flow in real time to ensure the accuracy of sampling; after sampling is completed, the control unit automatically performs a cleaning procedure for the sampling needle and the storage container in preparation for next use.

[0056] Furthermore, the sampling method is applicable to the following scenarios: regular maintenance inspection to ensure the continued stability of transformer oil; fault diagnosis to quickly respond to changes in transformer oil quality and troubleshoot problems; research and development to collect oil sample data under different operating conditions and optimize transformer operation and maintenance strategies; wherein the method further includes an oil sample analysis preprocessing step for preparing oil samples for laboratory analysis; an interface with a laboratory information system for automatically uploading sampling data and receiving analysis results; and a predictive maintenance system that uses oil sample data to predict transformer maintenance needs and failure risks.

[0057] Preferably, the sampling needle is made of anti-corrosion material to prevent chemical reaction with transformer oil; the sampling needle is designed as a retractable structure to reduce exposure of the sampling needle in a non-sampling state and avoid contamination.

[0058] It should be noted that the control unit further includes a fault diagnosis module for monitoring the operating status of the sampling device, automatically detecting and reporting potential faults; and an adaptive adjustment algorithm for automatically adjusting sampling parameters to optimize the sampling effect based on historical sampling data and the characteristics of transformer oil.

[0059] Furthermore, the storage container further includes a temperature control system for maintaining the oil sample within a specific temperature range to prevent the oil quality from changing due to temperature changes; an oil sample stirring mechanism for keeping the oil sample uniform during storage to avoid detection errors caused by component sedimentation; the data recording unit further includes a real-time clock module for recording the exact time of sampling so that the influence of time factors on oil quality can be considered in subsequent analysis; a data verification mechanism for ensuring that the recorded data has not been tampered with or damaged, and ensuring the authenticity and reliability of the data; the sampling method further includes the following steps: before sampling, the control unit automatically The equipment automatically performs self-diagnosis to ensure that all components are in proper working condition; during the sampling process, the control unit receives external environmental data in real time, such as transformer load and oil temperature, to evaluate the possible impact on the oil sample; after the sampling is completed, the control unit automatically triggers the cleaning and disinfection procedures of the storage container to eliminate the risk of cross contamination; the sampling method further includes an oil sample aging analysis step for evaluating the degree of aging and performance changes of the oil sample over time; an oil sample contamination detection step for identifying and quantifying contaminants in the oil sample, such as moisture and particulate matter; an equipment life prediction model based on oil sample data for predicting the remaining service life and maintenance cycle of the transformer.

[0060] Operation process: After the user sets the required sampling parameters through the intuitive user interface, the control unit automatically activates and directs the sampling needle to accurately penetrate the sealing layer of the transformer oil. At the same time, the sensor monitors and maintains a constant sampling pressure in real time to ensure the purity and representativeness of the oil sample. After sampling, the device automatically transfers the oil sample to the built-in storage container and seals it to prevent the oil sample from being contaminated during storage and transportation. Subsequently, the control unit generates a detailed report containing the oil sample status and sampling conditions, and stores the data securely or sends it to the designated monitoring system via wired / wireless means to complete the entire sampling process. This process not only improves the efficiency and accuracy of sampling, but also reduces the complexity and potential risks of manual operations, ensuring the quality and reliability of transformer oil sample detection.

[0061] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0062] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0063] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sampling device for detecting oil samples of transformers in hydropower plants, characterized in that: include, A sampling needle, used to penetrate the transformer oil seal and extract oil samples; A control unit, used for operating the movement of the sampling needle and controlling the sampling volume; Storage containers to collect and store the extracted oil samples; Sensors are used to monitor the status of the oil sample and pressure changes during the sampling process.

2. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 1, characterized in that: The control unit further comprises, A user interface for setting the sampling volume and sampling location; The driving mechanism is used to drive the sampling needle to move to a specified position according to user settings.

3. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 1, characterized in that: The sensor comprises: Pressure sensor, used to maintain constant sampling pressure to prevent oil sample contamination; Measuring sensor for precise metering of the extracted oil sample volume.

4. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 1, characterized in that: The storage container is designed to be sealable to protect the oil sample from the external environment; The storage container has the following characteristics: it is easy to disassemble, which is convenient for transferring the oil sample and cleaning the container; it has a temperature control function to maintain the oil sample at a suitable temperature to prevent the oil quality from changing; it is equipped with an anti-leakage valve to ensure that the oil sample will not leak during sampling, transfer and storage; The storage container also includes: a tag in communication with the control unit and used to store identification information of the oil sample and sampling conditions; A built-in oil quality sensor is used to monitor the electrical characteristics and chemical composition of the oil sample in real time.

5. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 1, characterized in that: The sampling device also includes a data recording unit for automatically recording sampling data and time; The data recording unit has the following functions: it can record the sampling time, date and sampling amount; it has data storage function, can save sampling records for a long time; it can transmit sampling data to the remote monitoring system by wireless or wired means; The data recording unit further comprises, an encryption module to ensure the security and integrity of sampled data; A user authentication system to control access to sampled data.

6. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 5, characterized in that: Also included is a sampling method using the above sampling device, comprising the following steps: Set sampling parameters through the user interface; Drive the sampling needle to the specified position of the transformer oil sealing layer; Penetrate the seal and extract a predetermined amount of oil sample; Collect oil samples into storage containers and seal them; Record sampling data and time; And, the sampling method also includes the following steps, Before sampling, the control unit automatically evaluates environmental conditions, such as temperature and humidity, to ensure standardized sampling conditions; During the sampling process, the control unit automatically adjusts the sampling parameters based on real-time monitoring data to adapt to changes in oil sample characteristics; After sampling is completed, the control unit generates a sampling report including the oil sample status, sampling conditions and recommended maintenance measures.

7. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 6, characterized in that: The sampling method further comprises the following steps: Before sampling, the control unit automatically checks the status of the sampling needle and storage container; During the sampling process, the control unit monitors the sampling pressure and oil sample flow in real time to ensure the accuracy of sampling; After sampling is completed, the control unit automatically performs a cleaning procedure for the sampling needle and storage container in preparation for next use.

8. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 7, characterized in that: The sampling method is applicable to the following scenarios: Regular maintenance inspections to ensure continued stability of transformer oil; Fault diagnosis, quickly respond to changes in transformer oil quality, and troubleshoot problems; Research and development, collect oil sample data under different working conditions, and optimize transformer operation and maintenance strategies; Wherein, the method further comprises: An oil sample pre-processing step used to prepare the oil sample for laboratory analysis; an interface to the laboratory information system for automatic uploading of sampling data and receiving analytical results; A predictive maintenance system that uses oil sample data to predict transformer maintenance needs and failure risks.

9. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 8, characterized in that: The sampling needle is made of anti-corrosion material to prevent chemical reaction with transformer oil; the sampling needle is designed as a retractable structure to reduce exposure of the sampling needle in a non-sampling state and avoid contamination.

10. The sampling device for detecting oil samples of a hydropower plant transformer as claimed in claim 2, characterized in that: The control unit further includes a fault diagnosis module for monitoring the operating status of the sampling device and automatically detecting and reporting potential faults; The adaptive adjustment algorithm automatically adjusts the sampling parameters to optimize the sampling effect according to the historical sampling data and the characteristics of the transformer oil.