CN203908639U - Liquid level online monitoring system for power transformer cooling liquid - Google Patents
Liquid level online monitoring system for power transformer cooling liquid Download PDFInfo
- Publication number
- CN203908639U CN203908639U CN201420320489.6U CN201420320489U CN203908639U CN 203908639 U CN203908639 U CN 203908639U CN 201420320489 U CN201420320489 U CN 201420320489U CN 203908639 U CN203908639 U CN 203908639U
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- China
- Prior art keywords
- liquid level
- module
- power transformer
- monitoring system
- wireless communication
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 77
- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 239000000110 cooling liquid Substances 0.000 title abstract 4
- 238000004891 communication Methods 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000002826 coolant Substances 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- Y02B60/50—
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a liquid level online monitoring system for power transformer cooling liquid. The liquid level online monitoring system comprises a data processing terminal, a remote monitoring terminal and a magnetostrictive liquid level sensor which is arranged on a power transformer box body and used for detecting the liquid level of the power transformer cooling liquid in real time. The data processing terminal comprises an interface module, a single-chip microcomputer and a first wireless communication module which are sequentially connected. The input end of the interface module is connected with the output end of the magnetostrictive liquid level sensor. The remote monitoring terminal comprises a second wireless communication module and a display module which are connected, wherein the second wireless communication module is matched with the first wireless communication module. According to the technical scheme, an operator can accurately know liquid level information of the cooling liquid in a power transformer in time, and risks of running of the transformer are reduced. In addition, by means of the liquid level online monitoring system, occupied manpower resources can be reduced.
Description
Technical field
The utility model relates to power transformer field, relates in particular to a kind of liquid level on-line monitoring system of power transformer liquid coolant.
Background technology
Power transformer is one of visual plant in electrical network, and the reliability of power transformer is the important indicator of the examination quality of power supply.Heat eliminating medium in power transformer plays insulation, dispels the heat and go out arcing.Once power transformer liquid coolant is leaked or liquid level is too low, this power transformer just can produce great potential safety hazard.
Traditional power transformer adopts magnetic turnover panel or float level meter, and maintainer needs regularly to site inspection and records level condition.Because power transformer distribution is closeer, be difficult to carry out all-weather and manually monitor operation conditions, once emergency case appears in power transformer liquid level, very difficult quilt is found in time, thereby is caused accident to occur.Meanwhile, maintainer checks frequently, also for power department has brought the waste in human resources.
Utility model content
The technical problems to be solved in the utility model is, for the above-mentioned defect that can not understand in time liquid level condition, waste of human resource of prior art, a kind of liquid level on-line monitoring system of power transformer liquid coolant is provided, can know in time liquid level condition, and, can save human resources.
The utility model solves the technical scheme that its technical matters adopts: the liquid level on-line monitoring system of constructing a kind of power transformer liquid coolant, comprise: data processing terminal, remote monitoring terminal and be arranged on electric transformer box and for detecting in real time the magnetostrictive liquid level sensor of the liquid level of power transformer liquid coolant, wherein
Described data processing terminal comprises the interface module, single-chip microcomputer and the first wireless communication module that connect successively, and the input end of described interface module connects the output terminal of described magnetostrictive liquid level sensor;
Described remote monitoring terminal comprises the second wireless communication module and the display module that are connected, and described the second wireless communication module and described the first wireless communication module match.
In the liquid level on-line monitoring system of power transformer liquid coolant described in the utility model, described the first wireless communication module and the second wireless communication module are respectively the GPRS module, 3G module, 4G module or the WIFI module that match.
In the liquid level on-line monitoring system of power transformer liquid coolant described in the utility model, described interface module is RS485 interface.
In the liquid level on-line monitoring system of power transformer liquid coolant described in the utility model, described magnetostrictive liquid level sensor is arranged on electric transformer box by flange.
In the liquid level on-line monitoring system of power transformer liquid coolant described in the utility model, described liquid level on-line monitoring system also comprises:
Be used to the direct current supply module of described magnetostrictive liquid level sensor and the power supply of described data processing terminal.
Implement the technical solution of the utility model, utilize advanced sensing technology and the communication technology, automatically the reading in real time of liquid level data, processing and the remote transmission of power transformer liquid coolant are realized, high according to precision, data processing is fast, and transmission range is wide, and transfer rate is high, make operating personnel can know timely and accurately the liquid level information of liquid coolant in power transformer, reduced the risk of transformer operation.And this liquid level on-line monitoring system can reduce taking of human resources.
In addition, can send in time alerting signal when the liquid level of the liquid coolant of power transformer during lower than warning position, remind the timely fluid infusion of maintainer, avoid accident to occur.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the building-block of logic of the liquid level on-line monitoring system embodiment mono-of the utility model power transformer liquid coolant.
Embodiment
Fig. 1 is the building-block of logic of the liquid level on-line monitoring system embodiment mono-of the utility model power transformer liquid coolant, and this on-line monitoring system comprises magnetostrictive liquid level sensor 20, data processing terminal 40 and remote monitoring terminal 50.Wherein, magnetostrictive liquid level sensor 20 is for detecting in real time the level value information of power transformer liquid coolant.Data processing terminal 40 is electrically connected with magnetostrictive liquid level sensor 20, and this data processing terminal 40 processes for the level value information to detected, and by the level value information after wireless mode transmission processing.Remote monitoring terminal 50 is for receiving and showing the level value information from data processing terminal 40.
Magnetostrictive liquid level sensor 20 can be arranged on electric transformer box 1 by flange 3, in this embodiment, electric transformer box 1 comprises the first casing and the second casing that are connected, liquid coolant in the first casing is as heat eliminating medium, play insulation, the arcing that dispels the heat and go out, the liquid coolant in the second casing is only used to detect level value.Certainly, in another embodiment, the second casing can be set, directly magnetostrictive liquid level sensor 20 be arranged on the first casing.
This magnetostrictive liquid level sensor 20 specifically comprises circuit unit 21, feeler 22 and float 23.And, in the time detecting level value, circuit unit 21 generation current pulses, this pulse is transmitted under magnetostriction alignment, and produces an annular magnetic field.Outside feeler 22, be furnished with float 23, float 23 moves up and down with the variation of liquid level along feeler 22.Due to one group of permanent magnet being housed in float, so float produces a magnetic field simultaneously.In the time meeting in current field and float magnetic field, produce one and return to pulse.Circuit unit 21 converts the mistiming of returning to pulse and current impulse to pulse signal, thereby calculates the physical location of float 23, has also just recorded level value.
Data processing terminal 40 comprises interface module 41, single-chip microcomputer 42 and the first wireless communication module 43.Wherein, the level value information that interface module 41 detects for inputting described magnetostrictive liquid level sensor, this interface module 41 is for example RS485 interface.Single-chip microcomputer 42 is processed for the level value information to detected, and during lower than preset value, produces warning message at level value, and it is the chip of C8051F380 that this single-chip microcomputer 42 is for example selected model.The first wireless communication module 43 is for passing through level value information and the warning message after wireless mode transmission processing, and this first wireless communication module 43 can be GPRS module (for example selecting the MG323 module of Huawei Company), 3G module, 4G module or WIFI module.
Remote monitoring terminal 50 is for example for possessing the handheld device such as computer equipment, mobile phone or the multifunctional digital instrument of network function.This remote monitoring terminal 50 can comprise the second wireless communication module 51 and display module 52, wherein, the second wireless communication module 51 is for receiving level value information and the warning message from data processing terminal 40 by wireless mode, this second wireless communication module 51 can be the GPRS module, 3G module, 4G module or the WIFI module that match with the first wireless communication module 43; Display module 52 is for showing received level value information and warning message.
In addition, this liquid level on-line monitoring system also comprises direct current supply module (not shown), and direct current supply module is used to magnetostrictive liquid level sensor 20 and data processing terminal 40 to power, and this direct current supply module is for example 24V direct current supply module.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present utility model.
Claims (5)
1. the liquid level on-line monitoring system of a power transformer liquid coolant, it is characterized in that, comprise: data processing terminal, remote monitoring terminal and be arranged on electric transformer box and for detecting in real time the magnetostrictive liquid level sensor of the liquid level of power transformer liquid coolant, wherein
Described data processing terminal comprises the interface module, single-chip microcomputer and the first wireless communication module that connect successively, and the input end of described interface module connects the output terminal of described magnetostrictive liquid level sensor;
Described remote monitoring terminal comprises the second wireless communication module and the display module that are connected, and described the second wireless communication module and described the first wireless communication module match.
2. the liquid level on-line monitoring system of power transformer liquid coolant according to claim 1, is characterized in that, described the first wireless communication module and the second wireless communication module are respectively the GPRS module, 3G module, 4G module or the WIFI module that match.
3. the liquid level on-line monitoring system of power transformer liquid coolant according to claim 1, is characterized in that, described interface module is RS485 interface.
4. the liquid level on-line monitoring system of power transformer liquid coolant according to claim 1, is characterized in that, described magnetostrictive liquid level sensor is arranged on electric transformer box by flange.
5. the liquid level on-line monitoring system of power transformer liquid coolant according to claim 1, is characterized in that, described liquid level on-line monitoring system also comprises:
Be used to the direct current supply module of described magnetostrictive liquid level sensor and the power supply of described data processing terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320489.6U CN203908639U (en) | 2014-06-16 | 2014-06-16 | Liquid level online monitoring system for power transformer cooling liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320489.6U CN203908639U (en) | 2014-06-16 | 2014-06-16 | Liquid level online monitoring system for power transformer cooling liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908639U true CN203908639U (en) | 2014-10-29 |
Family
ID=51782902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420320489.6U Expired - Lifetime CN203908639U (en) | 2014-06-16 | 2014-06-16 | Liquid level online monitoring system for power transformer cooling liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092257A (en) * | 2016-08-08 | 2016-11-09 | 河南开启电力实业有限公司 | Transforming plant main transformer liquid level on-line checking early warning system |
| CN108896126A (en) * | 2018-05-08 | 2018-11-27 | 河海大学 | A kind of self-cleaning evaporation gauge and its control method |
-
2014
- 2014-06-16 CN CN201420320489.6U patent/CN203908639U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092257A (en) * | 2016-08-08 | 2016-11-09 | 河南开启电力实业有限公司 | Transforming plant main transformer liquid level on-line checking early warning system |
| CN108896126A (en) * | 2018-05-08 | 2018-11-27 | 河海大学 | A kind of self-cleaning evaporation gauge and its control method |
| CN108896126B (en) * | 2018-05-08 | 2020-09-22 | 河海大学 | Self-cleaning evaporation sensor and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |