CN112710435A - Regulator cubicle cooling water seepage detecting system - Google Patents
Regulator cubicle cooling water seepage detecting system Download PDFInfo
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- CN112710435A CN112710435A CN202011508005.7A CN202011508005A CN112710435A CN 112710435 A CN112710435 A CN 112710435A CN 202011508005 A CN202011508005 A CN 202011508005A CN 112710435 A CN112710435 A CN 112710435A
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- sensor
- signal
- cooling water
- signals
- circuit
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- 239000000498 cooling water Substances 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000011358 absorbing material Substances 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 101100233179 Aspergillus ficuum inu2 gene Proteins 0.000 description 1
- 101100233178 Kluyveromyces marxianus INU1 gene Proteins 0.000 description 1
- 101100323872 Schizosaccharomyces pombe (strain 972 / ATCC 24843) aru1 gene Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 101150100175 inuE gene Proteins 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/186—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
- G01M3/188—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators for radiators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The application discloses regulator cubicle cooling water seepage detection system for whether the detection electrical cabinet cooling water seepage, the system includes the sensor: the sensor is arranged at the lower end of the electrical cabinet and consists of an absorbing material and an electrode, and the absorbing material expands after absorbing water so that the electrode generates an electrical signal; the sensor is used for detecting whether water exists at the lower end of the cabinet body; the detection circuit: with sensor electric connection includes: the device comprises a signal detection circuit, an alarm display circuit and a relay signal output circuit, wherein the signal detection circuit is used for receiving an electric signal of a sensor, the alarm display circuit is used for sending an alarm signal, and the relay signal output circuit sends the received signal to a control system; the control system comprises: the device comprises a controller and an upper computer, wherein the controller receives signals of a detection circuit and sends the signals to the upper computer, and the upper computer receives the signals of the controller and displays the signals on a human-computer interface.
Description
Technical Field
The application relates to the technical field of electrical cabinets, in particular to an electrical cabinet cooling water leakage detection system.
Background
In the cooling mode of the electric cabinet, circulating water is adopted to cool and radiate the power element, so that the cooling device has the characteristics of low noise, convenience in maintenance, small occupied space, high heat exchange efficiency and the like, and is particularly suitable for equipment such as a high-power medium-voltage frequency converter.
But along with the live time increase, reasons such as sealing member ageing, regulator cubicle water cooling system often take place seepage scheduling problem, if not discover in time, long-time seepage can lead to slight ponding in the cabinet to can take place because of humidity is too big in the cabinet, lead to the insulating reduction of components and parts to break down. If the leakage develops into water leakage or water spray, short circuit may occur in the cabinet, or cooling efficiency may be reduced due to a large loss of cooling water, resulting in overheating failure of electrical components.
Disclosure of Invention
The invention aims to provide a cooling water leakage detection system for an electrical cabinet, which overcomes the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: an electrical cabinet cooling water leakage detection system for detecting whether cooling water of an electrical cabinet leaks or not, the system comprising a sensor: the sensor is arranged at the lower end of the electrical cabinet and consists of an absorbing material and an electrode, and the absorbing material expands after absorbing water so that the electrode generates an electrical signal; the sensor is used for detecting whether water exists at the lower end of the cabinet body;
the detection circuit: with sensor electric connection includes: the device comprises a signal detection circuit, an alarm display circuit and a relay signal output circuit, wherein the signal detection circuit is used for receiving an electric signal of a sensor, the alarm display circuit is used for sending an alarm signal, and the relay signal output circuit sends the received signal to a control system;
the control system comprises: the device comprises a controller and an upper computer, wherein the controller receives signals of a detection circuit and sends the signals to the upper computer, and the upper computer receives the signals of the controller and displays the signals on a human-computer interface.
Preferably, the sensor further comprises a shell, the water absorbing material is installed inside the shell, neodymium iron boron magnets are embedded at two ends of the shell, and the electrodes are installed on the inner side of the shell.
Preferably, the water absorption material is PVA water absorption sponge, the shell is made of acrylic, and the electrodes are distributed in a net shape.
Preferably, the controller is a PLC, and the upper computer is an HMI.
Compared with the prior art, the cooling water leakage detection system for the electrical cabinet has the advantages of being high in insulation degree, convenient to install, flexible to expand, high in detection sensitivity and the like, and the number of the sensors can be configured according to the detection area. And the leakage position can be visually displayed through LED indication by site point inspection, and convenience is improved by controlling and remotely monitoring the system through outputting alarm signals.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic system diagram of a cooling water leakage detection system of an electrical cabinet according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sensor of an electrical cabinet cooling water leakage detection system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a detection circuit of the electrical cabinet cooling water leakage detection system according to the embodiment of the invention;
FIG. 4 is a logic flow diagram of an electrical cabinet cooling water leakage detection system in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electrical cabinet cooling water leakage detection system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail 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 embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the present invention mainly comprises three parts: sensor, detection circuit (including on-site display alarm portion) and control system. The detection circuit (labeled in the figure II) collects and processes signals of the sensor (labeled in the figure I), one path of the processed and output signals is used for on-site alarm display (labeled in the figure III), the other path of the processed and output signals is output to the control system (labeled in the figure II) through the relay, the control system logically processes the signals and communicates the signals to the upper computer HMI (labeled in the figure III) through the bus for signal monitoring, and meanwhile, the control circuit outputs and controls the electrical cabinet.
As shown in the combined figure 2, the single sensor mainly comprises a shell, electrodes and a water absorption material. The shell is by transparent material acrylic preparation (number 2.1 in the picture) to neodymium iron boron magnet (number 2.2 in the picture) is inlayed to both sides, because is strong magnet, can reliably firmly adsorb on cabinet body lower part steel sheet, also can adsorb on the side steel sheet as required. The electrode is made in the shape of a net disk (number 1 in the figure), so that the detection sensitivity can be improved. The electrodes are arranged inside the shell, and the two electrodes are led out by leads. The water absorbing material adopts PVA water absorbing sponge (number 3 in the figure), is in a drying state when no water exists at ordinary times, can quickly absorb, soften and expand when water exists, and is arranged below the electrode in the shell.
Referring to fig. 3, the detection circuit is composed of a plurality of single detection circuits, each of which can detect a signal of a single sensor or a signal generated by connecting a plurality of sensors in parallel, and each of which is mainly composed of a signal detection circuit (symbol in the figure), an alarm display circuit (symbol in the figure), and a relay signal output circuit (symbol in the figure).
Referring to fig. 4, the control system comprises a PLC controller and an upper computer HMI human-computer interface, wherein the PLC controller uses a small PLC such as siemens s7-300 series, configures a matched digital template according to the number of monitoring points, and communicates with the upper computer. The control system reflects the alarm points to relevant alarms through an HMI picture, and the HMI picture is arranged in an electric engineer duty room and an equipment operator station. And the alarm is generated, so that measures can be taken conveniently in time. Mainly detect the degree of leaking, if the degree is lighter, for example 4 monitoring points of installation in an regulator cubicle, when being less than the necessary less than or equal to 3 of certain quantity, then report to the police, if 4 whole reports to the police then control the converter, shut down it to listen the pump to the interior circulating water pump of cabinet, prevent the fault amplification.
Examples
Referring to fig. 5, in a hot rolling mill, the motor control cabinet of the main rolling mill adopts an ABB ACS6000 medium voltage inverter, the power component IGCT of the electric cabinet of the medium voltage inverter adopts ultrapure deionized water for cooling, and the cabinet is not provided with a water leakage detection alarm system.
The method for additionally arranging the water leakage detection system in the electric cabinet of the medium-voltage frequency converter comprises the following steps:
1. in the whole ABB ACS6000 medium-voltage frequency converter (marked with a mark in the figure), 4 sensors are respectively installed on the bottom plate of each electric cabinet in 3 rectifying unit cabinets (ARU1, ARU2 and ARU3), and each sensor independently occupies one path of detection circuit. In 3 inverter unit cabinets (INU1, INU2 and INU3), 4 sensors are respectively installed on the bottom plate of each electric cabinet, and each sensor independently occupies one path of detection circuit. In the charging control cabinet CBU and the cooling water control cabinet WCU, 4 sensors are respectively installed on a bottom plate of each electric cabinet, and the 4 sensors are connected in parallel to occupy one path of detection circuit. The total number of the signal data acquisition circuits is 26.
2. The 26 paths of signal data are collected and connected to an overhaul circuit (a mark number in the drawing is two or four) through cables, and after the signals are processed, one path of signals are sent to a field equipment water leakage state indicating screen (a mark number in the drawing is four) through cables for the equipment point inspector to check; and the other path is transmitted to a PLC (third label in the figure) through a cable, the PLC carries out logic processing on the digital quantity signals and then transmits the processing information to an upper computer HMI (human machine interface) in a field bus communication mode for an engineer and an equipment operator to monitor the equipment, and in addition, the control signals are transmitted to a medium voltage frequency converter control cabinet (first label in the figure) through the cable to realize control.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.
Claims (4)
1. The utility model provides an electrical cabinet cooling water seepage detection system for whether the seepage of detection electrical cabinet cooling water, its characterized in that: the system includes a sensor: the sensor is arranged at the lower end of the electrical cabinet and consists of an absorbing material and an electrode, and the absorbing material expands after absorbing water so that the electrode generates an electrical signal; the sensor is used for detecting whether water exists at the lower end of the cabinet body;
the detection circuit: with sensor electric connection includes: the device comprises a signal detection circuit, an alarm display circuit and a relay signal output circuit, wherein the signal detection circuit is used for receiving an electric signal of a sensor, the alarm display circuit is used for sending an alarm signal, and the relay signal output circuit sends the received signal to a control system;
the control system comprises: the device comprises a controller and an upper computer, wherein the controller receives signals of a detection circuit and sends the signals to the upper computer, and the upper computer receives the signals of the controller and displays the signals on a human-computer interface.
2. The electrical cabinet cooling water leakage detection system of claim 1, wherein: the sensor further comprises a shell, the water absorbing material is installed inside the shell, neodymium iron boron magnets are embedded at two ends of the shell, and the electrodes are installed on the inner side of the shell.
3. The electrical cabinet cooling water leakage detection system of claim 2, wherein: the water absorption material is PVA water absorption sponge, the shell is made of acrylic, and the electrodes are distributed in a net shape.
4. The electrical cabinet cooling water leakage detection system of claim 1, wherein: the controller is a PLC, and the upper computer is an HMI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011508005.7A CN112710435A (en) | 2020-12-18 | 2020-12-18 | Regulator cubicle cooling water seepage detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011508005.7A CN112710435A (en) | 2020-12-18 | 2020-12-18 | Regulator cubicle cooling water seepage detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112710435A true CN112710435A (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011508005.7A Pending CN112710435A (en) | 2020-12-18 | 2020-12-18 | Regulator cubicle cooling water seepage detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112710435A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184328A (en) * | 2021-10-29 | 2022-03-15 | 苏州浪潮智能科技有限公司 | Server liquid cooling pipe weeping detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114184328A (en) * | 2021-10-29 | 2022-03-15 | 苏州浪潮智能科技有限公司 | Server liquid cooling pipe weeping detection device |
| CN114184328B (en) * | 2021-10-29 | 2024-02-09 | 苏州浪潮智能科技有限公司 | Liquid leakage detection device for liquid-cooled tube of server |
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Application publication date: 20210427 |
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