Transformer oil quantity monitoring device and method

Abstract

The invention relates to the technical field of transformer oil quantity monitoring, and discloses a transformer oil quantity monitoring device and method, and the device comprises a driving device, an infrared transmitting and receiving device connected to an output shaft of the driving device, and a control unit. The control unit is electrically connected with the driving device and the infrared transmitting and receiving device respectively; the control unit controls the driving device to drive the infrared transmitting and receiving device to move in the lifting direction of the liquid level; and the control unit is used for detecting an intensity change signal of the infrared light received by the infrared transceiving device and judging the liquid level position. The control unit is used for controlling the driving device and the infrared transmitting and receiving device, and accurate detection of the liquid level position and real-time transmission of data are achieved. The infrared transmitting-receiving device has strong adaptability to environment change and can work stably in a severe environment. The liquid level monitoring device can automatically monitor the liquid level position, and can give an alarm when data are abnormal, so that intelligent monitoring is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer oil quantity monitoring, and in particular to a transformer oil quantity monitoring device and method. Background Art

[0002] The transformer core and windings in the oil-immersed transformer are all immersed in a closed container filled with transformer oil, and the transformer oil plays an insulating and cooling role. During normal operation, the transformer oil level should be kept within the range between the maximum and minimum oil level alarm oil levels of the oil level gauge. Under high temperature or heavy load, if the transformer oil level is too high, it may cause excessive pressure in the oil tank, causing oil overflow or pressure relief valve operation; if the transformer oil level is too low, the high-voltage part may lose the protection of the oil and be exposed, causing breakdown, discharge, and transformer damage; in addition, the oil level can also reflect the sealing condition of the oil tank, which is convenient for timely detection of oil seepage or oil leakage. Therefore, timely and accurate monitoring of the oil level is very important for the safe operation of the transformer. Summary of the invention

[0003] The present invention aims to at least solve the technical problem in the prior art that electrical faults are caused by untimely monitoring of transformer oil volume.

[0004] To this end, an object of the present invention is to provide a transformer oil quantity monitoring device, comprising a driving device, an infrared transceiver connected to the output shaft of the driving device, and a control unit;

[0005] The control unit is electrically connected to the driving device and the infrared transceiver device respectively;

[0006] The control unit controls the driving device to drive the infrared transceiver to move along the rising and falling direction of the liquid surface; the control unit detects the intensity change signal of the infrared light received by the infrared transceiver to determine the position of the liquid surface.

[0007] Furthermore, the monitoring device also includes an alarm, and the alarm is electrically connected to the control unit.

[0008] Furthermore, the monitoring device also includes a wireless communication module, and the wireless communication module is electrically connected to the control unit.

[0009] Furthermore, the driving device is a linear driving device.

[0010] Furthermore, the control unit is a single chip microcomputer system.

[0011] Furthermore, the driving device is a motor.

[0012] Furthermore, the motor is connected to the infrared transceiver through a cantilever.

[0013] Furthermore, the motor is connected to the cantilever through a transmission device.

[0014] The present invention provides a transformer oil quantity monitoring method, characterized in that it is implemented using any of the transformer oil quantity monitoring devices described above, and comprises the following steps:

[0015] Step S1: the control unit controls the driving device to drive the infrared transceiver to move along the direction of the liquid level;

[0016] Step S2: the infrared transceiver receives the reflected infrared light and generates an infrared photoelectric signal;

[0017] Step S3: The control unit monitors the change information of the infrared photoelectric signal, and determines and warns the liquid level position;

[0018] Step S4: The control unit transmits the liquid level position information and the warning information to the remote monitoring server for information storage.

[0019] Furthermore, the control unit monitors the change information of the infrared to outdoor photoelectric signal to judge and warn the liquid level position, including:

[0020] The control unit obtains the position of the liquid surface according to the distance between the driving device and the oil cylinder and the movement information of the infrared transceiver.

[0021] The present invention provides a transformer oil quantity monitoring device and method, which has the following beneficial effects:

[0022] The transformer oil level monitoring device and method of the present invention can timely and accurately monitor the transformer oil level, optimizes and innovates the limitations of the prior art, and has the following advantages:

[0023] High precision and real-time performance: The rotating device and infrared transceiver are controlled by a single-chip microcomputer to achieve accurate detection of the pointer position and real-time transmission of data.

[0024] Low cost and easy installation: The device has a simple structure, low cost, and is easy to install on various pointer instruments without affecting their normal operation.

[0025] Strong environmental adaptability: The infrared transceiver has strong adaptability to environmental changes (such as light, dust, etc.) and can work stably in harsh environments.

[0026] Intelligence and automation: Automatically store and forward data, and automatically send alarm information to the data processing center when data is abnormal, to achieve intelligent monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of a transformer oil quantity monitoring device according to the present invention;

[0029] Figure 2 The present invention is a flow chart of a transformer oil quantity monitoring method.

[0030] In the figure, the reference numerals are as follows:

[0031] 100. Oil cylinder; 101. Oil cylinder window; 200. Driving device; 300. Cantilever; 400. Infrared transceiver. DETAILED DESCRIPTION

[0032] Various aspects and features of the present invention are described herein with reference to the accompanying drawings.

[0033] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of the embodiments. Other modifications within the scope and spirit of the present invention will occur to those skilled in the art.

[0034] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the general description of the invention given above and the detailed description of the embodiments given below, serve to explain the principles of the invention.

[0035] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0036] It should also be understood that, although the invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the invention that have the characteristics described in the claims and are therefore within the scope of protection defined thereby.

[0037] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0038] Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present invention with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of ways with substantially any suitable detailed structure.

[0039] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0041] Example 1

[0042] like Figure 1 As shown, this embodiment provides a transformer oil level monitoring device, which is arranged on one side of the oil cylinder 100 of the transformer, and includes a driving device 200, an infrared transceiver 400 connected to the output shaft of the driving device 200, and a control unit; the control unit is electrically connected to the driving device 200 and the infrared transceiver 400;

[0043] The control unit controls the driving device 200 to drive the infrared transceiver 400 to move along the rising and falling direction of the liquid level, thereby scanning the liquid level in the oil cylinder 100; the control unit detects the intensity change signal of the infrared light received by the infrared transceiver to determine the position of the liquid level.

[0044] Specifically, the control unit is a single chip microcomputer system.

[0045] Specifically, the oil cylinder 100 is provided with an oil cylinder window 101 through which the liquid level can be seen.

[0046] The infrared transceiver 400 includes an infrared transmitting tube and an infrared receiving tube.

[0047] When the infrared transmitting tube emits infrared light, if it encounters the empty part of the oil cylinder window 101, the infrared light is reflected back and received by the infrared receiving tube, thereby generating an electrical signal. When the infrared light encounters the liquid surface, since the liquid surface has a weak absorption capacity for infrared light, the infrared light will be reflected back, and the intensity of the infrared light received by the infrared receiving tube will become stronger. The control unit can determine that oil has been encountered by detecting the change in the intensity of the infrared light received by the infrared receiving tube. By using this feature, we can accurately find the liquid level position and realize the monitoring function of the oil amount of the transformer.

[0048] The transformer oil level monitoring device of the present invention can timely and accurately monitor the transformer oil level, optimizes and innovates the limitations of the prior art, and has the following advantages:

[0049] The driving device 200 and the infrared transceiver 400 are controlled by a single-chip microcomputer system to achieve accurate detection of the liquid level position; the device has a simple structure, low cost, and is easy to install on various pointer instruments without affecting their normal operation; the infrared transceiver 400 has strong adaptability to environmental changes (such as light, dust, etc.) and can work stably in harsh environments.

[0050] Example 2

[0051] like Figure 1 As shown, this embodiment provides a transformer oil level monitoring device, which is arranged on one side of the oil cylinder 100 of the transformer, and includes a driving device 200, an infrared transceiver 400 connected to the output shaft of the driving device 200, and a control unit; the control unit is electrically connected to the driving device 200 and the infrared transceiver 400;

[0052] The control unit controls the driving device 200 to drive the infrared transceiver 400 to move along the rising and falling direction of the liquid level, thereby scanning the liquid level in the oil cylinder 100; the control unit detects the intensity change signal of the infrared light received by the infrared transceiver to determine the position of the liquid level.

[0053] Specifically, the control unit is a single chip microcomputer system.

[0054] Specifically, the oil cylinder 100 is provided with an oil cylinder window 101 through which the liquid level can be seen.

[0055] The infrared transceiver 400 includes an infrared transmitting tube and an infrared receiving tube.

[0056] When the infrared transmitting tube emits infrared light, if it encounters the empty part of the oil cylinder window 101, the infrared light is reflected back and received by the infrared receiving tube, thereby generating an electrical signal. When the infrared light encounters the liquid surface, since the liquid surface has a weak absorption capacity for infrared light, the infrared light will be reflected back, and the intensity of the infrared light received by the infrared receiving tube will become stronger. The control unit can determine that oil has been encountered by detecting the change in the intensity of the infrared light received by the infrared receiving tube. By using this feature, we can accurately find the liquid level position and realize the monitoring function of the oil amount of the transformer.

[0057] The transformer oil level monitoring device of the present invention can timely and accurately monitor the transformer oil level, optimizes and innovates the limitations of the prior art, and has the following advantages:

[0058] The driving device 200 and the infrared transceiver 400 are controlled by a single-chip microcomputer system to achieve accurate detection of the liquid level position; the device has a simple structure, low cost, and is easy to install on various pointer instruments without affecting their normal operation; the infrared transceiver 400 has strong adaptability to environmental changes (such as light, dust, etc.) and can work stably in harsh environments.

[0059] The difference between this embodiment and the first embodiment is that:

[0060] The transformer oil level detection device also includes an alarm;

[0061] When the liquid level determined by the control unit is less than a preset minimum alarm threshold, the control unit sends an alarm instruction to the alarm; or,

[0062] When the liquid level determined by the control unit is greater than a preset maximum alarm threshold, the control unit sends an alarm instruction to the alarm device to remind the staff to perform maintenance.

[0063] The transformer oil quantity detection device also includes a wireless communication module, which transmits the liquid level information determined by the control unit to a remote monitoring server to store the information; the wireless communication module can also send alarm information to the remote monitoring server, and the monitoring server pushes the alarm information to the corresponding person in charge to remind the corresponding person in charge to deal with the problem.

[0064] A transformer oil quantity monitoring device of the present invention realizes the transmission and storage of the liquid level information through a wireless communication module, and automatically sends an alarm message to a remote monitoring server when the data is abnormal, thereby realizing intelligent monitoring.

[0065] Example 3

[0066] like Figure 1As shown, this embodiment provides a transformer oil level monitoring device, which is arranged on one side of the oil cylinder 100 of the transformer, and includes a driving device 200, an infrared transceiver 400 connected to the output shaft of the driving device 200, and a control unit; the control unit is electrically connected to the driving device 200 and the infrared transceiver 400;

[0067] The control unit controls the driving device 200 to drive the infrared transceiver 400 to move along the rising and falling direction of the liquid level, thereby scanning the liquid level in the oil cylinder 100; the control unit detects the intensity change signal of the infrared light received by the infrared transceiver to determine the position of the liquid level.

[0068] Specifically, the control unit is a single chip microcomputer system.

[0069] Specifically, the oil cylinder 100 is provided with an oil cylinder window 101 through which the liquid level can be seen.

[0070] The infrared transceiver 400 includes an infrared transmitting tube and an infrared receiving tube.

[0071] When the infrared transmitting tube emits infrared light, if it encounters the empty part of the oil cylinder window 101, the infrared light is reflected back and received by the infrared receiving tube, thereby generating an electrical signal. When the infrared light encounters the liquid surface, since the liquid surface has a weak ability to absorb infrared light, the infrared light will be reflected back, and the intensity of the infrared light received by the infrared receiving tube will become stronger. The control unit can determine that oil has been encountered by detecting the change in the intensity of the infrared light received by the infrared receiving tube. By using this feature, we can accurately find the liquid level position and realize the monitoring function of the oil amount of the transformer.

[0072] The transformer oil level monitoring device of the present invention can timely and accurately monitor the transformer oil level, optimizes and innovates the limitations of the prior art, and has the following advantages:

[0073] The driving device 200 and the infrared transceiver 400 are controlled by a single-chip microcomputer system to achieve accurate detection of the liquid level position; the device has a simple structure, low cost, and is easy to install on various pointer instruments without affecting their normal operation; the infrared transceiver 400 has strong adaptability to environmental changes (such as light, dust, etc.) and can work stably in harsh environments.

[0074] The difference between this embodiment and the first embodiment is that:

[0075] The driving device 200 is a hydraulic cylinder or a cylinder driving system. Alternatively,

[0076] The driving device 200 is a motor, the output shaft of the motor is connected to the infrared transceiver 400 through the cantilever 300, and the infrared transceiver 400 is connected to one end of the cantilever 300;

[0077] The motor drives the infrared transceiver 40 to rotate to find the position of the oil level. Specifically, the control unit can obtain the position of the oil level according to the distance between the drive device 200 and the oil cylinder 100 and the rotation angle information of the cantilever.

[0078] Example 4

[0079] like Figure 2 As shown, this embodiment provides a transformer oil quantity monitoring method, which is implemented using the above transformer oil quantity monitoring device, and includes the following steps:

[0080] Step S1: the control unit controls the driving device 200 to drive the infrared transceiver 400 to move along the rising and falling direction of the liquid surface;

[0081] Step S2: the infrared transceiver 400 receives the reflected infrared light and generates an infrared photoelectric signal;

[0082] Step S3: The control unit monitors the change information of the infrared photoelectric signal to judge the liquid level position and issue an early warning;

[0083] Step S4: The control unit transmits the liquid level position information and the warning information to the remote monitoring server for information storage.

[0084] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other to form a technical solution.

[0085] In addition, although each operation is described in a specific order, this should not be understood as requiring these operations to be performed in the specific order shown or in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present disclosure. Some features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination mode.

[0086] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

[0087] Multiple embodiments of the present disclosure are described in detail above, but the present disclosure is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concepts of the present disclosure, and these variations and modifications should all fall within the scope of protection required by the present disclosure.

Claims

1. A transformer oil level monitoring device, arranged on one side of the oil cylinder of the transformer, characterized in that: It includes a driving device, an infrared transceiver connected to the output shaft of the driving device, and a control unit; The control unit is electrically connected to the driving device and the infrared transceiver device respectively; The control unit controls the driving device to drive the infrared transceiver to move along the rising and falling direction of the liquid surface; the control unit detects the intensity change signal of the infrared light received by the infrared transceiver to determine the position of the liquid surface.

2. The transformer oil quantity monitoring device according to claim 1, characterized in that: The monitoring device further comprises an alarm, and the alarm is electrically connected to the control unit.

3. The transformer oil quantity monitoring device according to claim 1, characterized in that: The monitoring device further comprises a wireless communication module, and the wireless communication module is electrically connected to the control unit.

4. The transformer oil quantity monitoring device according to claim 1, characterized in that: The driving device is a linear driving device.

5. The transformer oil quantity monitoring device according to claim 1, characterized in that: The control unit is a single chip microcomputer system.

6. The transformer oil quantity monitoring device according to claim 1, characterized in that: The driving device is a motor.

7. The transformer oil quantity monitoring device according to claim 6, characterized in that: The motor is connected to the infrared transceiver through a cantilever.

8. The transformer oil quantity monitoring device according to claim 7, characterized in that: The motor is connected to the cantilever through a transmission device.

9. A transformer oil quantity monitoring method, characterized in that: The method is implemented by using the transformer oil quantity monitoring device according to any one of claims 1 to 8, comprising the following steps: Step S1: the control unit controls the driving device to drive the infrared transceiver to move along the direction of the liquid level; Step S2: the infrared transceiver receives the reflected infrared light and generates an infrared photoelectric signal; Step S3: The control unit monitors the change information of the infrared photoelectric signal, and determines and warns the liquid level position; Step S4: The control unit transmits the liquid level position information and the warning information to the remote monitoring server for information storage.

10. The transformer oil quantity monitoring method according to claim 9, characterized in that: The control unit monitors the changes in infrared photoelectric signals and makes judgments and early warnings on the liquid level, including: The control unit obtains the position of the liquid surface according to the distance between the driving device and the oil cylinder and the movement information of the infrared transceiver.

Images