阅读说明：本技术 一种变压器油位数字化实时监测装置及方法 (Digital real-time monitoring device and method for transformer oil level ) 是由 胡翔 周广方 崔金栋 陆斌 徐红艳 卞阳 于 2020-06-22 设计创作，主要内容包括：本发明公开了一种变压器油位数字化实时监测装置及方法,包括自上至下设于变压器的油位标杆上、用以标记油位的标记件；设于变压器固定高度处、用以对标记件的标记信息进行获取的标记信息采集模块；与标记信息采集模块连接的主控模块,主控模块对标记信息采集模块采集到的标记信息进行处理得到变压器的油位高度值,且当油位高度值小于等于预设告警值时报警。应用该装置及方法,主控模块根据标记信息采集模块采集的油位信号进行数据处理得到油位高度值,由此以进行油位高度的实时监测,节省人力,且数据准确；当油位高度值小于等于预设告警时报警,以及时提醒作业人员当前变压器的油位情况,便于作业人员及时进行相应动作,提高系统安全性。(The invention discloses a digital real-time monitoring device and a digital real-time monitoring method for an oil level of a transformer, which comprise a marking piece, a sensor and a controller, wherein the marking piece is arranged on an oil level indicator post of the transformer from top to bottom and used for marking the oil level; the marking information acquisition module is arranged at the fixed height of the transformer and used for acquiring marking information of the marking piece; and the main control module is connected with the marking information acquisition module, processes the marking information acquired by the marking information acquisition module to obtain an oil level height value of the transformer, and gives an alarm when the oil level height value is smaller than or equal to a preset alarm value. By applying the device and the method, the main control module carries out data processing according to the oil level signal acquired by the marking information acquisition module to obtain the oil level height value, so that the oil level height can be monitored in real time, the labor is saved, and the data is accurate; when the oil level height value is smaller than or equal to the preset alarm, the alarm is given, and the oil level condition of the current transformer of the operating personnel is reminded in time, so that the operating personnel can perform corresponding actions in time, and the safety of the system is improved.)

1. The digital real-time monitoring device of transformer oil level, its characterized in that includes:

the marking piece is arranged on an oil level mark post of the transformer from top to bottom and used for marking an oil level;

the marking information acquisition module is arranged at the fixed height of the transformer and used for acquiring the marking information of the marking piece;

and the main control module is connected with the marking information acquisition module, processes the marking information acquired by the marking information acquisition module to obtain an oil level height value of the transformer, and triggers an alarm device to alarm when the oil level height value is smaller than or equal to a preset alarm value.

2. The digital real-time monitoring device for the oil level of the transformer according to claim 1, wherein the marking member is a bar code, and a plurality of bar codes are uniformly arranged on the oil level indicator rod respectively; the marking information acquisition module is a laser scanner.

3. The digital real-time monitoring device for the oil level of the transformer as recited in claim 1, wherein the marking member is a graduated scale, and the marking information collecting module is a camera.

4. The digital real-time monitoring device for the oil level of the transformer according to claim 2, wherein the marking information acquisition module is in communication connection with the main control module through an RS485 serial port.

5. The digital real-time monitoring device for the oil level of the transformer according to claim 1, further comprising a display module connected with the main control module and used for displaying an oil level height value, wherein the main control module controls the display module to display alarm information when the oil level height value is less than or equal to a preset alarm value.

6. The digital real-time monitoring device for the oil level of the transformer according to any one of claims 1 to 5, further comprising a remote terminal connected with the main control module through a wireless communication module, wherein the main control module can upload marking information and alarm information to the remote terminal.

7. The digital real-time monitoring device for the oil level of the transformer according to claim 1, wherein the wireless communication module is a WiFi module/GSM module.

8. A digital real-time monitoring method for the oil level of a transformer, which is applied to the digital real-time monitoring device for the oil level of the transformer according to any one of claims 1 to 7, and is characterized by comprising the following steps:

receiving mark information of a mark information acquisition module which is arranged at the fixed height of the transformer and used for acquiring the mark information of the mark piece;

processing the marking information to obtain an oil level height value of the transformer;

and judging whether the oil level height value of the transformer is less than or equal to a preset alarm value, and if so, triggering an alarm device to alarm.

Technical Field

The invention relates to the technical field of transformer oil level monitoring, in particular to a digital real-time monitoring device for a transformer oil level and a digital real-time monitoring method for the transformer oil level.

Background

The oil level of the oil conservator is one of important operating parameters of the power transformer, and the method has important significance for ensuring the safe operation of the power transformer by timely finding out the abnormal oil level and taking corresponding measures. When the oil level is too high, the oil pressure in the transformer can be increased, and oil spilling can be caused; when the oil level is too low and the transformer runs at low load or the air temperature suddenly drops, the oil in the oil tank of the body is possibly reduced, so that the insulation fault is caused; when the oil level is lower than the large cover of the transformer, the winding and the iron core are exposed in the air, so that the danger of internal flashover is caused, and meanwhile, the contact surface of the oil and the air is increased, so that the insulation performance of the insulating oil is rapidly reduced.

The traditional transformer oil level data is obtained by the visual observation of operation and maintenance personnel from the site during the patrol. The method for acquiring the oil level of the main transformer has the following problems: (1) when the oil level of the transformer is rapidly reduced due to sudden temperature drop, serious oil leakage and the like, operation and maintenance personnel cannot timely know the oil level; (2) when the transformer has oil leakage and cannot be stopped in time, operation and maintenance personnel need to perform high-frequency patrol to observe the change of the oil level, so that the workload is large; (3) because the oil level gauge is high and the light of an indoor transformer is dark, the oil level recorded by visual observation often has certain deviation.

Disclosure of Invention

In view of the above, a first objective of the present invention is to provide a digital real-time monitoring device for transformer oil level, so as to solve the problems that the existing transformer oil level data needs to be manually monitored, cannot be monitored in real time, and the data is manually read to have deviation.

In order to achieve the first object, the invention provides the following technical scheme:

a digital real-time monitoring device for transformer oil level, comprising:

the marking piece is arranged on an oil level mark post of the transformer from top to bottom and used for marking an oil level;

the marking information acquisition module is arranged at the fixed height of the transformer and used for acquiring the marking information of the marking piece;

and the main control module is connected with the marking information acquisition module, processes the marking information acquired by the marking information acquisition module to obtain an oil level height value of the transformer, and triggers an alarm device to alarm when the oil level height value is smaller than or equal to a preset alarm value.

Preferably, the marking member is a bar code, and the bar codes are uniformly arranged on the oil level indicator rod respectively; the marking information acquisition module is a laser scanner.

Preferably, the marking piece is a graduated scale, and the marking information acquisition module is a camera.

Preferably, the marking information acquisition module is in communication connection with the main control module through an RS485 serial port.

Preferably, the oil level alarm system further comprises a display module connected with the main control module and used for displaying the oil level height value, and the main control module controls the display module to display alarm information when the oil level height value is smaller than or equal to a preset alarm value.

Preferably, the system further comprises a remote terminal connected with the main control module through a wireless communication module, and the main control module can upload the marking information and the alarm information to the remote terminal.

Preferably, the wireless communication module is specifically a WiFi module/GSM module.

Based on the above device, the present invention further provides a monitoring method applied to any one of the above devices, including:

receiving mark information of a mark information acquisition module which is arranged at the fixed height of the transformer and used for acquiring the mark information of the mark piece;

processing the marking information to obtain an oil level height value of the transformer;

and judging whether the oil level height value of the transformer is less than or equal to a preset alarm value, and if so, triggering an alarm device to alarm.

The invention provides a digital real-time monitoring device for an oil level of a transformer, which comprises a marking piece, a monitoring piece and a monitoring unit, wherein the marking piece is arranged on an oil level indicator post of the transformer from top to bottom and is used for marking the oil level; the marking information acquisition module is arranged at the fixed height of the transformer and used for acquiring marking information of the marking piece; and the main control module is connected with the marking information acquisition module, processes the marking information acquired by the marking information acquisition module to obtain an oil level height value of the transformer, and gives an alarm when the oil level height value is smaller than or equal to a preset alarm value.

By applying the digital real-time monitoring device and the digital real-time monitoring method for the oil level of the transformer, the marking piece is arranged on the oil level indicator rod and used for marking the oil level, the oil level indicator rod moves when the oil level changes, the marking information acquisition module is used for arranging and acquiring marking information of the marking piece at a fixed height and sending the marking information to the main control module, and the main control module carries out data processing according to an oil level signal acquired by the marking information acquisition module to obtain an oil level height value, so that the real-time monitoring of the oil level height is carried out, the labor is saved, and the data is accurate; when the oil level height value is smaller than or equal to the preset alarm, the alarm is given, and the oil level condition of the current transformer of the operating personnel is reminded in time, so that the operating personnel can perform corresponding actions in time, and the safety of the system is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of an installation structure of a digital real-time monitoring device for an oil level of a transformer according to an embodiment of the present invention;

fig. 2 is a block diagram of a digital real-time monitoring device for the oil level of a transformer according to an embodiment of the present invention;

fig. 3 is a block diagram of a digital real-time monitoring device for oil level of a transformer according to another embodiment of the present invention.

The drawings are numbered as follows:

the oil level control system comprises a main control module 1, a remote terminal 2, a display module 3, an oil pipe 4, an oil level marker post 5, a laser scanner 6, a single chip microcomputer 7, a marking piece 8 and an RS485 serial port 9.

Detailed Description

The embodiment of the invention discloses a digital real-time monitoring device for an oil level of a transformer, which is used for solving the problems that the oil level data of the existing transformer needs manual monitoring and cannot be monitored in real time, and the deviation exists in the manual data reading and the like.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating an installation structure of a digital real-time monitoring device for an oil level of a transformer according to an embodiment of the present invention; fig. 2 is a block diagram of a digital real-time monitoring device for the oil level of a transformer according to an embodiment of the present invention; fig. 3 is a block diagram of a digital real-time monitoring device for oil level of a transformer according to another embodiment of the present invention.

In a specific embodiment, the present invention provides a digital real-time monitoring device for the oil level of a transformer, comprising:

the marking piece 8 is arranged on the oil level mark post 5 of the transformer from top to bottom and is used for marking the oil level; the number of the marking pieces 8 can be set to be a plurality, and the marking pieces are uniformly arranged on the oil level indicator rod 5 from top to bottom so as to uniformly display the height of the oil level;

the marking information acquisition module is arranged at the fixed height of the transformer and used for acquiring marking information of the marking piece 8; the main control module 1 is connected with the marking information acquisition module, the main control module 1 processes the marking information acquired by the marking information acquisition module to obtain an oil level height value of the transformer, and the alarm device is triggered to alarm when the oil level height value is smaller than or equal to a preset alarm value.

The marking information acquisition module is set according to the marking information type of the marking piece 8 so as to read corresponding information. Wherein, in an embodiment, marker 8 can set up to the scale, and mark information acquisition module can set up to the camera, takes a picture or make a video recording to marker 8 through the camera in the height department of predetermineeing, preferably makes a video recording in order to carry out real-time supervision to marker 8, gathers marker 8's mark information, and passes back to main control module 1 and carries out data processing. The mark information acquisition module is connected with the main control module 1 through a serial port or is connected with the wireless communication module, preferably, the mark information acquisition module is connected with a single chip microcomputer 7, such as an ATmage 8 series, or other chips with data processing functions, such as an MCU chip or a CPU chip, and the like, can be set as required, and is connected with the main control module 1 through the serial port module of the single chip microcomputer 7.

The main control module 1 processes the marking information to obtain an oil level height value of the transformer, the main control module 1 can be a display, a PC (personal computer) and the like, the main control module 1 gives an alarm when the oil level height value is smaller than or equal to a preset alarm value, and the alarm device can be a buzzer or an audible and visual alarm arranged in a main control room.

The system comprises a plurality of transformers, and each transformer is respectively provided with a mark piece 8 and a mark information acquisition module matched with the mark piece.

By applying the digital real-time monitoring device for the oil level of the transformer, the marking piece 8 is arranged on the oil level indicator rod 5 and used for marking the oil level, the oil level indicator rod 5 moves when the oil level changes, the marking information acquisition module is used for setting and acquiring marking information of the marking piece 8 at a fixed height and sending the marking information to the main control module 1, and the main control module 1 carries out data processing according to an oil level signal acquired by the marking information acquisition module to obtain an oil level height value, so that the real-time monitoring of the oil level height is carried out, the labor is saved, and the data is accurate; when the oil level height value is smaller than or equal to the preset alarm, the alarm is given, and the oil level condition of the current transformer of the operating personnel is reminded in time, so that the operating personnel can perform corresponding actions in time, and the safety of the system is improved.

Specifically, the marking member 8 is a bar code, and a plurality of bar codes are uniformly arranged on the oil level indicator rod 5; the marking information acquisition module is a laser scanner 6. A plurality of bar codes are corresponding oil level height respectively one-to-one, mark information acquisition module sets up in oil level monitoring window department, in order to detect the bar code, thereby read corresponding oil level data, when the inside oil level of transformer changes, the position of oil level sighting rod 5 changes, the bar code of monitoring window changes, laser scanner 6 detects new bar code, read bar code information, and upload to host system 1 current oil level data of renewal, and act according to oil level height value, can only observe the problem whether oil tank oil lacked among the prior art through digital code sign solution, the concrete numerical value of accurate monitoring transformer internal oil level. The bar code can be fixed on the oil level mark post 5 through bonding, or the mark piece 8 is set as a two-dimensional code, but it is inconvenient to set up, and the error of the oil level height value is great simultaneously, can set up as required when in actual application.

Specifically, the marking piece 8 is specifically a graduated scale, and the marking information acquisition module is specifically a camera. The graduated scale can be integrally arranged with the oil level mark post 5, the camera is connected with the main control module 1 through a communication line, the camera can acquire images of the marking piece 8 according to a preset time interval, the acquired image information is sent to the main control module 1, the main control module 1 reads the height of the graduated scale in the image information to obtain an oil level height value, and the marking piece 8 can be arranged into different color indication bars or other mechanical structures which can facilitate data identification and processing, and the protection range of the invention is included.

In one embodiment, the marking information acquisition module is in communication connection with the main control module 1 through an RS485 serial port 9. After the mark information acquisition module detects the oil level data, the oil level data is transmitted to the main control module 1 through a Modbus communication protocol. In other embodiments, the wireless communication module may be connected to the mobile terminal, such as a bluetooth module, and the like, and all such embodiments are within the scope of the present invention.

Further, still include and be connected with host system 1, be used for carrying on the display module 3 of oil level height value, display module 3 sets up to liquid crystal display, and host system 1 controls display module 3 to show alarm information when oil level height value is less than or equal to and predetermines the alarm value. The display module 3 may be provided as needed in other embodiments.

On the basis of the above embodiments, the system further comprises a remote terminal 2 connected with the main control module 1 through a wireless communication module, and the main control module 1 can upload the mark information and the alarm information to the remote terminal 2. The remote terminal 2 is typically a PC, a tablet computer or a display. The main control module 1 and the remote terminal 2 are respectively provided with a wireless communication module, such as a WiFi module or a GSM module, the main control module 1 collects the oil level height value and the alarm information and then sends the oil level height value and the alarm information to the remote terminal 2, and remote measurement and remote signaling are achieved.

Based on the device, the invention also provides a corresponding monitoring method, which comprises the following steps:

receiving marking information of a marking information acquisition module which is arranged at the fixed height of the transformer and used for acquiring the marking information of a marking piece;

processing the marking information to obtain an oil level height value of the transformer;

and judging whether the oil level height value of the transformer is less than or equal to a preset alarm value, and if so, triggering an alarm device to alarm.

By applying the digital real-time monitoring device and the digital real-time monitoring method for the oil level of the transformer, the marking piece is arranged on the oil level indicator rod and used for marking the oil level, the oil level indicator rod moves when the oil level changes, the marking information acquisition module is used for arranging and acquiring marking information of the marking piece at a fixed height and sending the marking information to the main control module, and the main control module carries out data processing according to an oil level signal acquired by the marking information acquisition module to obtain an oil level height value, so that the real-time monitoring of the oil level height is carried out, the labor is saved, and the data is accurate; when the oil level height value is smaller than or equal to the preset alarm, the alarm is given, and the oil level condition of the current transformer of the operating personnel is reminded in time, so that the operating personnel can perform corresponding actions in time, and the safety of the system is improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.