CN202343577U - On-line recognition device for leakage of hydraulic pipeline - Google Patents
On-line recognition device for leakage of hydraulic pipeline Download PDFInfo
- Publication number
- CN202343577U CN202343577U CN 201120386882 CN201120386882U CN202343577U CN 202343577 U CN202343577 U CN 202343577U CN 201120386882 CN201120386882 CN 201120386882 CN 201120386882 U CN201120386882 U CN 201120386882U CN 202343577 U CN202343577 U CN 202343577U
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- leakage
- recognition device
- line recognition
- temperature
- hydraulic pipeline
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Abstract
An on-line recognition device for leakage of a hydraulic pipeline belongs to the technical field of hydraulic testing equipment, and is used for discovering leakage of the hydraulic pipeline in time and giving an alarm during the production process. The on-line recognition device adopts the technical scheme that the on-line recognition device comprises a temperature detection device, a programmable logic controller and a human-computer interface, wherein the temperature detection device is mounted on the outer wall of the hydraulic pipeline to be detected, the signal output terminal of the temperature detection device is connected with the input terminal of the analog input template of the programmable logic controller, and the programmable logic controller is connected with the human-computer interface through a communication cable. The on-line recognition device for leakage of the hydraulic pipeline can effectively discover oil leakage of the hydraulic pipeline in time and quickly position the leakage part and ensures that an alarm can be given out in time when the leakage rate is not high, manual participation is not required during the recognition process, and the on-line recognition device is highly intelligent. The on-line recognition device provided by the utility model has a simple structure, is easy to manufacture, low in cost and convenient to install, has a reliable using effect, and is convenient for implementation and popularization.
Description
Technical field
The utility model relates to a kind of can the leakage fluid pressure line and realizes real-time detection and location and the device that can in time report to the police, belongs to hydraulic pressure checkout equipment technical field.
Background technology
In rolling production, the detection and location of continuous rolling production line rolling mill hydraulic pipeline oil leak are difficult points always, and the reason of detection difficult mainly contains following two aspects:
1. the hydraulic fluid leak position is hidden, is difficult to find leakage point only according to naked eyes, and because hydraulic oil is the same with the color of water, the testing staff often thinks the hydraulic oil of revealing by mistake on-the-spot water, causes the error of detection.
2. the whole fluid pressure lines in the hydraulic system being checked one by one needs great amount of time, and must be that leakage point just might be found under the situation of not termination of pumping of Hydraulic Station, therefore in long checking process, leaks and can exist always.
The utility model content
The utility model technical problem to be solved provides a kind of online fluid pressure line leakage recognition device that can find in time in process of production that oil product is revealed and reported to the police in the fluid pressure line.
The technical scheme that solves the problems of the technologies described above is:
A kind of online fluid pressure line leaks recognition device; It is made up of temperature-detecting device, programmable controller, man-machine interface; Temperature-detecting device is installed on the fluid pressure line outer wall that needs to detect; The signal output part of temperature-detecting device is connected with the analog input template input of programmable controller, and programmable controller is connected with man-machine interface through communication cable.
Above-mentioned online fluid pressure line leaks recognition device; Said temperature-detecting device is made up of the temperature sensor that can accurately measure hydraulic oil temperature; Temperature sensor closely contacts with tested fluid pressure line, is connected to Programmable Logic Controller through Shielded Twisted Pair with four-wire system.
The beneficial effect of the utility model:
The utility model can find in time effectively that through temperature-detecting device, programmable controller, warning device the oil product leakage also can be located leakage position fast in the fluid pressure line; Guaranteed when the oil leak amount is little, just can in time produce warning; Identifying need not artificially be participated in, and has very high intelligent characteristic.The utility model is simple in structure, making is easy, with low cost, easy for installation, result of use reliably, is not destroyed original hydraulic test, is convenient to implement and promote.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Mark is following among the figure: fluid pressure line 1, temperature-detecting device 2, Shielded Twisted Pair 3, analog input template 4, programmable controller 5, man-machine interface 6.
The specific embodiment
The utility model is to realize the identification to the fluid pressure line leakage through the equipment of measuring pipeline temperature height.
Fluid pressure line energy loss (pressure, volume and mechanical loss) at work can be converted into heat energy rises the working oil temperature of system; When fluid pressure line takes place to leak; The oily heat of pipeline hydraulic pressure of pipe line of flowing through can make tube wall temperature raise, and leakage rate is fast more, and its temperature increasing degree is big more.Can reflect this physics law of pipeline inner fluid flowing velocity speed according to pipeline temperature height; Mounting temperature checkout gear 2 on fluid pressure line 1 outer wall that needs detect; The signal of temperature-detecting device 2 is connected on the analog input template 4 of Programmable Logic Controller 5 through Shielded Twisted Pair 3 with the four-wire system mode; 5 pairs of temperature values that collect of Programmable Logic Controller carry out the size ordering; Remove N higher temperature value (numerical value of N is confirmed according to the pipeline number that possibly leak simultaneously), the summation of residuals temperatures value is averaged again, and this mean value is the characteristic value of the no leakage line temperature of conduct just.Each pipeline temperature and characteristic temperature value compare, if the two difference is greater than warning threshold value (manual work preestablishes), then on man-machine interface 6, produce the warning that respective line is leaked immediately, and prompting spot check personnel take the handled measure immediately.
Fluid pressure line 1 temperature of each equipment shows with rod figure on man-machine interface 6 in real time.Even leakage rate does not reach the warning threshold value, the spot check personnel also can come into plain view to the leakage situation of on-the-spot each pipeline.
What the temperature-detecting device 2 of an embodiment of the utility model adopted is magnetic-type temperature instrumentation.
Claims (2)
1. an online fluid pressure line leaks recognition device; It is characterized in that: it is made up of temperature-detecting device (2), programmable controller (5), man-machine interface (6); Temperature-detecting device (2) is installed on fluid pressure line (1) outer wall that needs to detect; The signal output part of temperature-detecting device (2) is connected with analog input template (4) input of programmable controller (5), and programmable controller (5) is connected with man-machine interface (6) through communication cable.
2. online fluid pressure line according to claim 1 leaks recognition device; It is characterized in that: said temperature-detecting device (2) is made up of the temperature sensor that can accurately measure hydraulic oil temperature; Temperature sensor closely contacts with tested fluid pressure line (1), is connected to Programmable Logic Controller (5) through Shielded Twisted Pair (3) with four-wire system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120386882 CN202343577U (en) | 2011-10-12 | 2011-10-12 | On-line recognition device for leakage of hydraulic pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120386882 CN202343577U (en) | 2011-10-12 | 2011-10-12 | On-line recognition device for leakage of hydraulic pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343577U true CN202343577U (en) | 2012-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120386882 Expired - Fee Related CN202343577U (en) | 2011-10-12 | 2011-10-12 | On-line recognition device for leakage of hydraulic pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768691A (en) * | 2016-12-27 | 2017-05-31 | 苏州市宏业灯具设备有限公司 | A kind of steam generator steam leakage detection means |
| CN112145506A (en) * | 2020-09-22 | 2020-12-29 | 山东钢铁集团日照有限公司 | Device and method for preventing fire in case of oil leakage of hydraulic system of rolling mill |
-
2011
- 2011-10-12 CN CN 201120386882 patent/CN202343577U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768691A (en) * | 2016-12-27 | 2017-05-31 | 苏州市宏业灯具设备有限公司 | A kind of steam generator steam leakage detection means |
| CN112145506A (en) * | 2020-09-22 | 2020-12-29 | 山东钢铁集团日照有限公司 | Device and method for preventing fire in case of oil leakage of hydraulic system of rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20161012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |