CN103017813A - Comprehensive detection device of direct-current transmission valve cooling system instrument - Google Patents
Comprehensive detection device of direct-current transmission valve cooling system instrument Download PDFInfo
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- CN103017813A CN103017813A CN2012105198289A CN201210519828A CN103017813A CN 103017813 A CN103017813 A CN 103017813A CN 2012105198289 A CN2012105198289 A CN 2012105198289A CN 201210519828 A CN201210519828 A CN 201210519828A CN 103017813 A CN103017813 A CN 103017813A
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Abstract
The invention discloses a comprehensive detection device of a direct-current transmission valve cooling system instrument. The comprehensive detection device comprises a temperature instrument detection unit, a pressure instrument detection unit, a liquid level instrument detection unit, a conductivity instrument detection unit and a flow instrument detection unit and further comprises a programmable logic controller (PLC) control system and an upper computer. The temperature instrument detection unit, the pressure instrument detection unit, the liquid level instrument detection unit, the conductivity instrument detection unit and the flow instrument detection unit are communicated with the PLC control system, and the upper computer is connected with the control system through optical fibers. The comprehensive detection device can conduct comprehensive detection analysis on accuracy of various direct-current transmission valve cooling system instruments, improves system management level of valve cooling equipment, strengthens risk pre-control capability, develops detection analysis work, and simultaneously provides scientific data basis for building equipment archives for on-line monitoring instruments of a valve cooling system, formulating test standards and the like.
Description
Technical field
The present invention relates to the direct current transportation valve cooling system, particularly direct current transportation valve cooling system instrument comprehensive detection device.
Background technology
The straight-wavy valve cooling system by the technical indicators such as temperature, flow, pressure and water quality of accuracy controlling valve cooling system chilled water, is guaranteed the safe and reliable operation of DC converter valve as one of most important backup system in the high voltage direct current transmission project.On-line monitoring instrument in the valve cooling system comprises the table meters such as temperature, pressure, liquid level and conductivity, and its accuracy, reliability will directly affect the safe operation of valve cooling system, so need regularly all kinds of instrument to be tested, guarantees its accuracy.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of direct current transportation valve cooling system instrument comprehensive detection device is provided.
For addressing the above problem, the technical solution used in the present invention is:
Direct current transportation valve cooling system instrument comprehensive detection device, comprise temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit, class of traffic instrument detecting unit, PLC control system and host computer, described temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit and class of traffic instrument detecting unit and PLC control system are carried out communication, and host computer is connected by optical fiber with control system;
The data-signal that described PLC control system is used for temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit and class of traffic instrument detecting unit are detected gathers, processes, and carry out communication with host computer, data-signal is sent to host computer;
Described host computer be used for to gather the data-signal that the PLC control system transmits, and detect, calculating, data filing, performance curve generates and automatically generates examining report.
In order better to realize the present invention, described PLC control system man-machine interface adopts touch-screen, show current system running status, the method for operation, procedure parameter, the self-diagnostic function that possesses the identification fault, the requirements such as technological principle, tabulation printing, group parameter demonstration, control object real-time status and failure message that can switch by touch-screen different detection units.
In order better to realize the present invention, described temperature classes instrument detecting unit comprises calibration cell, the platinum resistance standard set-up, process checking gauge, dut temperature class instrument and test control box, described platinum resistance standard set-up, process checking gauge, dut temperature class instrument and test control box are connected with the PLC control system, described test control box is connected with calibration cell, be used for selecting manual test or automatically test, the test control box sends automatic test instruction to the PLC control system when automatically testing, platinum resistance standard set-up and dut temperature class instrument are measured the calibration cell temperature simultaneously, when selecting manual test, data are manually inputed to host computer, when selecting automatically test, data-signal passes to host computer by PLC, finally by host computer to data analysis, and Output rusults.
In order better to realize the present invention, described pressure class instrument detecting unit comprises normal pressure meter, pressure calibration instrument, process checking gauge and by measuring pressure class instrument, described normal pressure meter, pressure calibration instrument, process checking gauge and be connected with the PLC control system by measuring pressure class instrument, normal pressure is taken into account by measuring pressure class instrument while gaging pressure prover pressure, and data-signal passed to PLC, finally by host computer to data analysis, and Output rusults.
In order better to realize the present invention, described liquid level class instrument detecting unit comprises water pump, raw water box, the test water tank, clear glass tubular type liquid level gauge, magnetostriction liquidometer, tested liquid level class instrument and test control box, described water pump, raw water box and test connect successively with water tank, clear glass tubular type liquid level gauge, magnetostriction liquidometer and tested liquid level class instrument are installed on test with on the water tank, clear glass tubular type liquid level gauge and magnetostriction liquidometer are as the standard liquid level gauge, described water pump, magnetostriction liquidometer, tested liquid level class instrument and test control box are connected with the PLC control system, described test control box is used for selecting manual test or automatically test, the test control box sends automatic test instruction to the PLC control system when automatically testing, regulate the liquid level that water tank is used in test by the PLC control system according to target detection liquid level control water pump, magnetostriction liquidometer and tested liquid level class instrument are measured the test high water tank simultaneously, and data-signal passed to the PLC control system, finally by host computer to data analysis, and Output rusults.
In order better to realize the present invention, described conductivity class instrument detecting unit comprises conductivity meter standard, conductivity titer and tested conductivity class instrument, described tested conductivity class instrument is connected with the PLC control system, conductivity meter standard and tested conductivity class instrument are measured conductivity titer conductivity simultaneously, by host computer to data analysis, and Output rusults.
In order better to realize the present invention, described class of traffic instrument detecting unit comprises water pump, tank body, the bypass motorized valve, emptying valve, tensimeter, portable type ultrasonic flowmeter and measured flux class instrument, described water pump, the bypass motorized valve, measured flux class instrument, tensimeter and tank body connect into the loop by stainless steel pipes, emptying valve is installed on the pipeline, bypass motorized valve formation in parallel with water pump bypass, described water pump, measured flux class instrument and portable type ultrasonic flowmeter are connected with the PLC control system, thereby piping flow is regulated according to target detection flow regulation bypass electric valve by the PLC control system, portable type ultrasonic flowmeter and measured flux class instrument be the measuring circuit flow simultaneously, by host computer to data analysis, and Output rusults.
The present invention compared with prior art, have following advantage and beneficial effect: by straight-wavy valve cooling system instrument comprehensive detection device, can realize the comprehensively regularly detection analysis of temperature classes instrument, pressure class instrument, liquid level class instrument, conductivity class instrument and the class of traffic instrument of valve cooling system, improve the system management level of valve cool equipment, strengthen the Risk Pre-control ability, carry out and detect analytical work provides science simultaneously for the foundation of valve cooling system on-line monitoring instrumentation archives and the formulation of examination criteria etc. data foundation.
Description of drawings
Fig. 1 is the embodiment of the invention 1 described a kind of direct current transportation valve cooling system instrument comprehensive detection device structural drawing;
Fig. 2 is the embodiment of the invention 1 described a kind of direct current transportation valve cooling system instrument comprehensive detection device temperature classes instrument detecting unit structural drawing;
Fig. 3 is the embodiment of the invention 1 described a kind of direct current transportation valve cooling system instrument comprehensive detection device pressure class instrument detecting unit structural drawing;
Fig. 4 is the embodiment of the invention 1 described a kind of direct current transportation valve cooling system instrument comprehensive detection device liquid level class instrument detecting unit structural drawing;
Fig. 5 is the embodiment of the invention 1 described a kind of direct current transportation valve cooling system instrument comprehensive detection device class of traffic instrument detecting unit structural drawing.
Embodiment
Below in conjunction with embodiment and accompanying drawing embodiments of the present invention are described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
As shown in Figure 1, direct current transportation valve cooling system instrument comprehensive detection device, comprise temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit, class of traffic instrument detecting unit, PLC control system and host computer, described temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit and class of traffic instrument detecting unit carry out communication by TCP/IP ethernet communication mode and PLC control system, host computer is connected by optical fiber with control system, PLC control system man-machine interface adopts touch-screen, show the current system running status, the method of operation, procedure parameter, possess the self-diagnostic function of identifying fault, can switch by touch-screen the technological principle of different detection units, tabulation is printed, group parameter shows, the requirements such as control object real-time status and failure message.
The data-signal that described PLC control system is used for temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit and class of traffic instrument detecting unit are detected gathers, processes, and carry out communication with host computer, data-signal is sent to host computer;
Described host computer be used for to gather the data-signal that the PLC control system transmits, and detect, calculating, data filing, performance curve generates and automatically generates examining report.
As shown in Figure 2, described temperature classes instrument detecting unit comprises calibration cell, the platinum resistance standard set-up, process checking gauge, dut temperature class instrument and test control box, described platinum resistance standard set-up, process checking gauge, dut temperature class instrument and test control box are connected with the PLC control system, described test control box is connected with calibration cell, be used for selecting manual test or automatically test, the test control box sends automatic test instruction to the PLC control system when automatically testing, platinum resistance standard set-up and dut temperature class instrument are measured the calibration cell temperature simultaneously, when selecting manual test, data are manually inputed to host computer, when selecting automatically test, data-signal passes to host computer by PLC, finally by host computer to data analysis, and Output rusults.
As shown in Figure 3, described pressure class instrument detecting unit comprises normal pressure meter, pressure calibration instrument, process checking gauge and by measuring pressure class instrument, described normal pressure meter, pressure calibration instrument, process checking gauge and be connected with the PLC control system by measuring pressure class instrument, normal pressure is taken into account by measuring pressure class instrument while gaging pressure prover pressure, and data-signal passed to PLC, finally by host computer to data analysis, and Output rusults.
As shown in Figure 4, described liquid level class instrument detecting unit comprises water pump 1, raw water box 2, test water tank 3, clear glass tubular type liquid level gauge 5, magnetostriction liquidometer 6, tested liquid level class instrument 4 and test control box 7, described water pump 1, raw water box 2 and test connect successively with water tank 3, clear glass tubular type liquid level gauge 5, magnetostriction liquidometer 6 and tested liquid level class instrument 4(comprise float type level gauge 4-1, pressure-type liquidometer 4-2, capacitance level gauge 4-3, ultrasonic level gage 4-4) is installed on test with on the water tank 3, clear glass tubular type liquid level gauge 5 and magnetostriction liquidometer 6 are as the standard liquid level gauge, described water pump 1, magnetostriction liquidometer 6, tested liquid level class instrument 4 and test control box 7 are connected with PLC control system 8, described test control box 7 is used for selecting manual test or automatically test, test control box 7 sends automatic test instruction to PLC control system 8 when automatically testing, start water pump 1 by PLC control system 8, regulate the liquid level that water tank 3 is used in test by PLC control system 8 according to target detection liquid level control water pump 1, magnetostriction liquidometer 6 and tested liquid level class instrument 4 are measured test water tank 3 liquid levels simultaneously, and data-signal passed to PLC control system 8, finally by host computer to data analysis, and Output rusults, clear glass tubular type liquid level gauge is used for preliminary test.
Described conductivity class instrument detecting unit comprises conductivity meter standard, conductivity titer and tested conductivity class instrument, described tested conductivity class instrument is connected with the PLC control system, conductivity meter standard and tested conductivity class instrument are measured conductivity titer conductivity simultaneously, by host computer to data analysis, and Output rusults.
As shown in Figure 5, described class of traffic instrument detecting unit comprises water pump 10, tank body 11, bypass motorized valve 15, emptying valve 16, tensimeter 12, portable type ultrasonic flowmeter 14 and measured flux class instrument 13, described water pump 10, measured flux class instrument 13, tensimeter 12 and tank body 11 connect into the loop by stainless steel pipes, emptying valve 16 is installed on the pipeline, bypass motorized valve 15 and water circulating pump 1 formation bypass in parallel, described water pump 10, bypass motorized valve 15, measured flux class instrument 13 and portable type ultrasonic flowmeter 14 are connected with PLC control system 8, start water pump 10 by PLC control system 8, thereby piping flow is regulated according to target detection flow regulation bypass motorized valve 15 by PLC control system 8, portable type ultrasonic flowmeter 14 and measured flux class instrument 13 be the measuring circuit flow simultaneously, by 9 pairs of data analysis of host computer, and Output rusults.
Above-described embodiment is the better embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. direct current transportation valve cooling system instrument comprehensive detection device, it is characterized in that: comprise temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit, class of traffic instrument detecting unit, PLC control system and host computer, described temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit and class of traffic instrument detecting unit and PLC control system are carried out communication, and host computer is connected by optical fiber with control system;
The data-signal that described PLC control system is used for temperature classes instrument detecting unit, pressure class instrument detecting unit, liquid level class instrument detecting unit, conductivity class instrument detecting unit and class of traffic instrument detecting unit are detected gathers, processes, and carry out communication with host computer, data-signal is sent to host computer;
Described host computer be used for to gather the data-signal that the PLC control system transmits, and detect, calculating, data filing, performance curve generates and automatically generates examining report.
2. described direct current transportation valve cooling system instrument comprehensive detection device according to claim 1, it is characterized in that: described PLC control system man-machine interface adopts touch-screen.
3. described direct current transportation valve cooling system instrument comprehensive detection device according to claim 1, it is characterized in that: described temperature classes instrument detecting unit comprises calibration cell, the platinum resistance standard set-up, process checking gauge, dut temperature class instrument and test control box, described platinum resistance standard set-up, process checking gauge, dut temperature class instrument and test control box are connected with the PLC control system, described test control box is connected with calibration cell, be used for selecting manual test or automatically test, the test control box sends automatic test instruction to the PLC control system when automatically testing, platinum resistance standard set-up and dut temperature class instrument are measured the calibration cell temperature simultaneously, when selecting manual test, data are manually inputed to host computer, when selecting automatically test, data-signal passes to host computer by PLC, finally by host computer to data analysis, and Output rusults.
4. described direct current transportation valve cooling system instrument comprehensive detection device according to claim 1, it is characterized in that: described pressure class instrument detecting unit comprises normal pressure meter, pressure calibration instrument, process checking gauge and by measuring pressure class instrument, described normal pressure meter, pressure calibration instrument, process checking gauge and be connected with the PLC control system by measuring pressure class instrument, normal pressure is taken into account by measuring pressure class instrument while gaging pressure prover pressure, and data-signal passed to PLC, finally by host computer to data analysis, and Output rusults.
5. described direct current transportation valve cooling system instrument comprehensive detection device according to claim 1, it is characterized in that: described liquid level class instrument detecting unit comprises water pump, raw water box, the test water tank, clear glass tubular type liquid level gauge, magnetostriction liquidometer, tested liquid level class instrument and test control box, described water pump, raw water box and test connect successively with water tank, clear glass tubular type liquid level gauge, magnetostriction liquidometer and tested liquid level class instrument are installed on test with on the water tank, clear glass tubular type liquid level gauge, magnetostriction liquidometer is as the standard liquid level gauge, described water pump, magnetostriction liquidometer, tested liquid level class instrument and test control box are connected with the PLC control system, described test control box is used for selecting manual test or automatically test, the test control box sends automatic test instruction to the PLC control system when automatically testing, regulate the liquid level that water tank is used in test by the PLC control system according to target detection liquid level control water pump, magnetostriction liquidometer and tested liquid level class instrument are measured the test high water tank simultaneously, and data-signal passed to the PLC control system, finally by host computer to data analysis, and Output rusults.
6. described direct current transportation valve cooling system instrument comprehensive detection device according to claim 1, it is characterized in that: described conductivity class instrument detecting unit comprises conductivity meter standard, conductivity titer and tested conductivity class instrument, described tested conductivity class instrument is connected with the PLC control system, conductivity meter standard and tested conductivity class instrument are measured conductivity titer conductivity simultaneously, by host computer to data analysis, and Output rusults.
7. described direct current transportation valve cooling system instrument comprehensive detection device according to claim 1, it is characterized in that: described class of traffic instrument detecting unit comprises water pump, tank body, the bypass motorized valve, emptying valve, tensimeter, portable type ultrasonic flowmeter and measured flux class instrument, described water pump, the bypass motorized valve, measured flux class instrument, tensimeter and tank body connect into the loop by stainless steel pipes, emptying valve is installed on the pipeline, bypass motorized valve formation in parallel with water pump bypass, described water pump, measured flux class instrument and portable type ultrasonic flowmeter are connected with the PLC control system, thereby piping flow is regulated according to target detection flow regulation bypass electric valve by the PLC control system, portable type ultrasonic flowmeter and measured flux class instrument be the measuring circuit flow simultaneously, by host computer to data analysis, and Output rusults.
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| CN201210519828.9A CN103017813B (en) | 2012-12-06 | 2012-12-06 | Comprehensive detection device of direct-current transmission valve cooling system instrument |
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| CN201210519828.9A CN103017813B (en) | 2012-12-06 | 2012-12-06 | Comprehensive detection device of direct-current transmission valve cooling system instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605310A (en) * | 2013-12-02 | 2014-02-26 | 天津光电通信技术有限公司 | Intelligent instrument control unit |
| CN103760882A (en) * | 2013-11-06 | 2014-04-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Complete redundancy testing apparatus control system of direct-current valve cooling unit |
| CN104061985A (en) * | 2014-07-03 | 2014-09-24 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Riverway pressure type water level indicator verification and calibration method |
| CN106595744A (en) * | 2016-11-11 | 2017-04-26 | 菏泽海诺知识产权服务有限公司 | Water flow indicator delay time and work cycle performance automatic test device and method |
| CN114018308A (en) * | 2021-11-20 | 2022-02-08 | 中国南方电网有限责任公司超高压输电公司大理局 | Instrument inspection system |
| CN114485778A (en) * | 2021-12-27 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Automatic detection device and method for FACTS cooling equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005073400A (en) * | 2003-08-25 | 2005-03-17 | Toshiba Mitsubishi-Electric Industrial System Corp | Power converter |
| CN101634866A (en) * | 2009-02-10 | 2010-01-27 | 广州市高澜水技术有限公司 | Control system of pure water cooling device of high voltage direct current (HVDC) transmission converter valve |
| CN202260981U (en) * | 2011-09-30 | 2012-05-30 | 广州高澜节能技术股份有限公司 | Direct-current power transmission and current conversion valve cooling system |
| US20120142537A1 (en) * | 2010-12-02 | 2012-06-07 | Lighthouse Energy Solutions LLC | Superconducting direct current transmission system |
| CN202420555U (en) * | 2011-12-27 | 2012-09-05 | 广州高澜节能技术股份有限公司 | Wind power generation water-cooled device test platform |
| CN203024794U (en) * | 2012-12-06 | 2013-06-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Comprehensive instrument detection device for direct-current transmission valve cooling system |
-
2012
- 2012-12-06 CN CN201210519828.9A patent/CN103017813B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005073400A (en) * | 2003-08-25 | 2005-03-17 | Toshiba Mitsubishi-Electric Industrial System Corp | Power converter |
| CN101634866A (en) * | 2009-02-10 | 2010-01-27 | 广州市高澜水技术有限公司 | Control system of pure water cooling device of high voltage direct current (HVDC) transmission converter valve |
| US20120142537A1 (en) * | 2010-12-02 | 2012-06-07 | Lighthouse Energy Solutions LLC | Superconducting direct current transmission system |
| CN202260981U (en) * | 2011-09-30 | 2012-05-30 | 广州高澜节能技术股份有限公司 | Direct-current power transmission and current conversion valve cooling system |
| CN202420555U (en) * | 2011-12-27 | 2012-09-05 | 广州高澜节能技术股份有限公司 | Wind power generation water-cooled device test platform |
| CN203024794U (en) * | 2012-12-06 | 2013-06-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Comprehensive instrument detection device for direct-current transmission valve cooling system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760882A (en) * | 2013-11-06 | 2014-04-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Complete redundancy testing apparatus control system of direct-current valve cooling unit |
| CN103605310A (en) * | 2013-12-02 | 2014-02-26 | 天津光电通信技术有限公司 | Intelligent instrument control unit |
| CN104061985A (en) * | 2014-07-03 | 2014-09-24 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Riverway pressure type water level indicator verification and calibration method |
| CN106595744A (en) * | 2016-11-11 | 2017-04-26 | 菏泽海诺知识产权服务有限公司 | Water flow indicator delay time and work cycle performance automatic test device and method |
| CN114018308A (en) * | 2021-11-20 | 2022-02-08 | 中国南方电网有限责任公司超高压输电公司大理局 | Instrument inspection system |
| CN114485778A (en) * | 2021-12-27 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Automatic detection device and method for FACTS cooling equipment |
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| CN103017813B (en) | 2015-07-15 |
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