CN201240887Y - Water treatment apparatus for power cable test terminal - Google Patents
Water treatment apparatus for power cable test terminal Download PDFInfo
- Publication number
- CN201240887Y CN201240887Y CNU2008200674521U CN200820067452U CN201240887Y CN 201240887 Y CN201240887 Y CN 201240887Y CN U2008200674521 U CNU2008200674521 U CN U2008200674521U CN 200820067452 U CN200820067452 U CN 200820067452U CN 201240887 Y CN201240887 Y CN 201240887Y
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- China
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- water
- magnetic valve
- reverse checkvalve
- strainer
- valve
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Abstract
The utility model relates to a water treating device of a power cable testing terminal, being composed of a pipeline of circulating water and cooling water and a control system; wherein, the cooling water pipeline is composed of a water storage tank, a centrifugal pump, a pipeline, a cooling device and a solenoid valve. The water treating device has the advantages that: the device can lead water terminals with different norms and sizes to keep stable work in a long-term pressure-proof test. The control system is used for comparing current electrical conductivity and setting electrical conductivity, thus judging whether the circulating water passes through ion-separating resin, so as to reduce the electrical conductivity. Aiming at different water terminals with different norms and sizes, flow quantity and pressure of the circulating water can be changed by adjusting a ball valve. When the pipe is blocked abnormally and the circulating water pressure is over high, the control system can automatically close the pump so as to prevent the pipeline from being cracked.
Description
Technical field
The utility model belongs to a kind of deionized water treatment unit, particularly a kind of power cable test terminal water treatment device.
Background technology
Along with the fast development of China's power industry and deepening continuously of urban network reconstruction, the crosslinked cable consumption constantly increases in the electrical network.Different with oil filled switch, the crosslinked cable defective that occurs that is in operation is irreclaimable, and the on-the-spot difficulty that detects is very high.Therefore, reach the operation life of design in order to guarantee crosslinked cable, before laying to its performance test particularly important of electric property particularly.When cable is applied power-frequency voltage, near screen layer and the insulation layer boundary radial electric field component is arranged not only, and also has axial component, strength of electric field in semiconduction edge is the highest, therefore adopt cable terminal end to improve electric field distribution herein, otherwise flashover or puncture will appear in semi-conductive layer stripping place under lower voltage.The water terminal is widely used in the voltage test of various voltage ranges and cross-sectional area of conductor cable as a kind of good test terminal, and business-like deionization recirculated water terminal voltage has reached 800kV.The relative permittivity of water is 80 more, and resistance is different because of impurity level, is semi-conductor.It is the equal piezodielectric of a kind of ideal, and during persistent pressure, heating is violent, and therefore very fast boiling needs the circulation cooling.The high more effect of all pressing of electrical conductivity of water is good more, but heating is also fast.How controlling water terminal electrical conductivity of water and temperature, keep the steady running in test of long duration of water terminal, is the crucial difficult point of water terminal.
Summary of the invention
The purpose of this utility model provides a cover can regulate the recirculated water specific conductivity, the temperature of Control Circulation water, and the state parameter of monitoring recirculated water and the power cable test terminal water treatment device that can steady in a long-termly move are to solve above-mentioned technical barrier.
To achieve these goals, the utility model is made of recirculated water and cooling water pipeline and Controlling System two portions, wherein recirculated water and water-cooled tube route water-storing tank, and centrifugal water pump, pipeline, refrigerating unit, magnetic valve constitutes, and is characterized in:
Water-storing tank communicates with breaking away from subtree fat, communicates with heat exchanger by the 6th magnetic valve or the 5th magnetic valve, communicates with the second water outlet interface by first magnetic valve, second magnetic valve and the 4th magnetic valve;
Heat exchanger communicates with the first backwater interface by first ball valve, the 4th reverse checkvalve and the 4th strainer, communicates with the second backwater interface by first ball valve, the 3rd reverse checkvalve and the 3rd strainer, communicates with safety valve by the 9th magnetic valve, first strainer;
Between first magnetic valve and second magnetic valve, be sequentially provided with centrifugal water pump, reverse checkvalve and second strainer;
Communicating between second magnetic valve and the 4th magnetic valve with between the 7th magnetic valve and the 3rd magnetic valve;
Between the 3rd reverse checkvalve and the 3rd strainer, communicate with the second water outlet interface by the 6th reverse checkvalve;
Between the 4th reverse checkvalve and the 4th strainer, communicate with the first water outlet interface by the 5th reverse checkvalve.
Be respectively arranged with pressure transmitter between above-mentioned the 9th magnetic valve and first strainer and between first ball valve and the 8th magnetic valve.
Be respectively arranged with flow sensor between above-mentioned the 8th magnetic valve and the 3rd reverse checkvalve and between the 8th magnetic valve and the 4th reverse checkvalve.
Also be respectively arranged with temperature sensor between above-mentioned the 8th magnetic valve and the 3rd reverse checkvalve and between the 8th magnetic valve and the 4th reverse checkvalve.
Be provided with conductivitimeter between the above-mentioned heat exchanger and first ball valve.
Advantage of the present utility model is to make different model specification water terminal to keep steady operation in long-term pressure test.Controlling System comparison loop water current conductivity and setting specific conductivity judge that whether recirculated water is by breaking away from subtree fat to reduce specific conductivity.At different model specification water terminal, can be by regulating flow and the pressure that ball valve changes recirculated water.When the unusual obstruction of pipeline appearance caused circulating water pressure too high, Controlling System switched off the pump automatically to avoid taking place pipeline generation explosion.
Description of drawings
Fig. 1 is the utility model pipeline structure synoptic diagram.
Among the figure: 1-heat exchanger, 2-water-storing tank, 3-safety valve, 4-conductivitimeter, 5-temperature sensor, 6-break away from subtree fat, 7,8-backwater interface, 9,10-water outlet interface, V-magnetic valve, B-ball valve, Q-flow sensor, P-pressure transmitter, G-strainer, L-centrifugal water pump, N-reverse checkvalve.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model is made of recirculated water and cooling water pipeline and Controlling System two portions.Pipeline is for recirculated water provides different circulation passages according to different mode of operation with requiring, and considers that the purity of recirculated water is very high, and piping material all adopts stainless steel and the free of contamination material of water is formed.Controlling System then be magnetic valve in the pilot piping and water pump by operation on request, and the parameters of monitoring recirculated water.
The utility model water-cooled tube route water-storing tank, the stainless steel centrifugal water pump, stainless steel pipes, refrigerating unit, magnetic valve constitutes.Free of contamination PE materials processing forms to water in the water tank employing, and its moisture storage capacity is 450L, can satisfy the needs of different model water terminal.Centrifugal water pump rated flow and pressure are respectively 2.5m
3/ h and 2.0bar can satisfy the operating requirement of all water terminals.The cooling power of refrigerating unit is 120kW, can satisfy 500kV and the requirement of following voltage range cable long-term pressure test.
The mounting means that the utility model breaks away from subtree fat bucket 6 is: on the device gantry base pair of guide rails is installed, the resin bucket can be pulled out along guide rail.
The core of Controlling System is programmable logic controller (PLC).The human-computer interaction interface push button sends control signal to PLC, and the output signal of PLC combined sensor requires to respond to control, and sends condition indicative signal to human-computer interaction interface.After water to be recycled satisfied test requirements document, supervisory system was connected the high-voltage power supply interlock switch.In case recirculated water occurs in the voltage test process unusually, the supervisory system signal that gives the alarm disconnects interlock switch, avoids testing the high pressure flashover equipment and test sample are caused damage.
The utility model comprises 3 groundwork states: the internal recycle state, go out water state and backwater state.When the recirculated water specific conductivity was higher than the test requirements document specific conductivity, water treatment device need be operated in the internal recycle state, made circulating water flow through disengaging subtree fat, thereby reduced the circulation electrical conductivity of water.Magnetic valve V1, V8 and V5 are open-minded at this moment.After the recirculated water specific conductivity reached required value, water treatment device can be operated in out water state to water terminal conduit water-filling, and after pressure, flow and temperature showed normally, high-voltage power supply interlock switch closure can be carried out voltage test.Magnetic valve V1, V2, V3 and V4 are open-minded at this moment, and V5 and V6 are alternately open-minded.Voltage test makes water treatment device be operated in the backwater state after finishing, and the water in the water terminal conduit is drawn back the water storage bucket.Magnetic valve V3, V4, V7, V8 and V6 are open-minded at this moment.In the above-mentioned working order, V9 is open-minded when circulating water temperature is higher than set(ting)value, allows the cooling-water flowing supercooler that recirculated water is cooled off.
The utility model adopts Siemens PLC C analog quantity expansion module EM235 acquisition stream quantity sensor and pressure transmitter output signal, adopt analog quantity expansion module EM231-RTD collecting temperature sensor output signal, adopt the output signal of specific conductivity controller collection conductivity sensor and be sent to analog quantity expansion module EM235.The utility model is controlled its working order by panel button.6 push buttons are the input contact that control mode, water pump, first water outlet, first backwater, second water outlet and the second backwater button are connected Siemens PLC C respectively.The utility model is by output contact control magnetic valve, centrifugal water pump and the running LED of PLC.
The content that is not described in detail in this specification sheets belongs to this area professional and technical personnel's known prior art.
Claims (5)
1, a kind of power cable test terminal water treatment device is made of recirculated water and cooling water pipeline and Controlling System two portions, water-cooled tube route water-storing tank wherein, and centrifugal water pump, pipeline, refrigerating unit, magnetic valve constitutes, and it is characterized in that:
Water-storing tank communicates with breaking away from subtree fat, communicates with heat exchanger by the 6th magnetic valve or the 5th magnetic valve, communicates with the second water outlet interface by first magnetic valve, second magnetic valve and the 4th magnetic valve;
Heat exchanger communicates with the first backwater interface by first ball valve, the 4th reverse checkvalve and the 4th strainer, communicates with the second backwater interface by first ball valve, the 3rd reverse checkvalve and the 3rd strainer, communicates with safety valve by the 9th magnetic valve, first strainer;
Be sequentially provided with centrifugal water pump, reverse checkvalve and second strainer between first magnetic valve and second magnetic valve, first magnetic valve also communicates with the first water outlet interface by the 7th magnetic valve and the 3rd magnetic valve;
Communicating between second magnetic valve and the 4th magnetic valve with between the 7th magnetic valve and the 3rd magnetic valve;
Between the 3rd reverse checkvalve and the 3rd strainer, communicate with the second water outlet interface by the 6th reverse checkvalve;
Between the 4th reverse checkvalve and the 4th strainer, communicate with the first water outlet interface by the 5th reverse checkvalve.
2, power cable test terminal water treatment device as claimed in claim 1 is characterized in that: be respectively arranged with pressure transmitter between the 9th magnetic valve and first strainer and between first ball valve and the 8th magnetic valve.
3, power cable test terminal water treatment device as claimed in claim 1 is characterized in that: be respectively arranged with flow sensor between the 8th magnetic valve and the 3rd reverse checkvalve and between the 8th magnetic valve and the 4th reverse checkvalve.
4, as claim 1 or 3 described power cable test terminal water treatment device, it is characterized in that: also be respectively arranged with temperature sensor between the 8th magnetic valve and the 3rd reverse checkvalve and between the 8th magnetic valve and the 4th reverse checkvalve.
5, power cable test terminal water treatment device as claimed in claim 1 is characterized in that: be provided with conductivitimeter between the heat exchanger and first ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200674521U CN201240887Y (en) | 2008-05-29 | 2008-05-29 | Water treatment apparatus for power cable test terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200674521U CN201240887Y (en) | 2008-05-29 | 2008-05-29 | Water treatment apparatus for power cable test terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201240887Y true CN201240887Y (en) | 2009-05-20 |
Family
ID=40714181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200674521U Expired - Lifetime CN201240887Y (en) | 2008-05-29 | 2008-05-29 | Water treatment apparatus for power cable test terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201240887Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502902A (en) * | 2011-05-10 | 2014-01-08 | 株式会社富士金 | Pressure-based flow control device with flow monitor, fluid-supply-system anomaly detection method using same, and method for handling monitor flow anomalies |
| CN103928840A (en) * | 2013-01-15 | 2014-07-16 | 沈阳大陆激光柔性制造技术有限公司 | High purity water cooling device of semiconductor laser unit |
| CN113790861A (en) * | 2021-08-02 | 2021-12-14 | 中国长江电力股份有限公司 | Intelligent detection method for cooling water leakage of hydropower station |
-
2008
- 2008-05-29 CN CNU2008200674521U patent/CN201240887Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502902A (en) * | 2011-05-10 | 2014-01-08 | 株式会社富士金 | Pressure-based flow control device with flow monitor, fluid-supply-system anomaly detection method using same, and method for handling monitor flow anomalies |
| CN103502902B (en) * | 2011-05-10 | 2015-12-02 | 株式会社富士金 | With the method for disposal when pressure flow-rate controller of flow monitor, the method for detecting abnormality using the fluid feed system of this device and monitoring Traffic Anomaly |
| CN103928840A (en) * | 2013-01-15 | 2014-07-16 | 沈阳大陆激光柔性制造技术有限公司 | High purity water cooling device of semiconductor laser unit |
| CN113790861A (en) * | 2021-08-02 | 2021-12-14 | 中国长江电力股份有限公司 | Intelligent detection method for cooling water leakage of hydropower station |
| CN113790861B (en) * | 2021-08-02 | 2023-05-16 | 中国长江电力股份有限公司 | Intelligent detection method for cooling water leakage of hydropower station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE NETWORK ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER OWNER: WUHAN HIGH VOLTAGE RESEARCH INSTITUTE OF STATE GRID Effective date: 20090911 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090911 Address after: Nanjing City, Jiangsu Province, Nan Shui Road No. 8, zip code: 210003 Co-patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Patentee after: Power Science Research Institute of national network Address before: Hubei province Wuhan city Hongshan District Luoyu road 143, zip code: 430074 Patentee before: Guowang Wuhan High Voltage Inst |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160711 Address after: 430074 Hubei city of Wuhan province Wuchang Luo Yu Road, No. 143 Patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Address before: Nanjing City, Jiangsu Province, 210003 South Shui Road No. 8 Patentee before: State Grid Electric Power Research Insititute Patentee before: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |