CN102830738A - Device for preventing moisture condensation of closed bus - Google Patents
Device for preventing moisture condensation of closed bus Download PDFInfo
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- CN102830738A CN102830738A CN2012103340491A CN201210334049A CN102830738A CN 102830738 A CN102830738 A CN 102830738A CN 2012103340491 A CN2012103340491 A CN 2012103340491A CN 201210334049 A CN201210334049 A CN 201210334049A CN 102830738 A CN102830738 A CN 102830738A
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- branch road
- air
- enclosed busbar
- air inlet
- inlet branch
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Abstract
The invention discloses a device for preventing moisture condensation of a closed bus. The device comprises a dehumidifying system, a drying system and a control system. The dehumidifying system includes an air source cabinet, a communication pipe, an air suction branch, and a first air inlet branch, wherein one ends of the air suction branch and the first air inlet branch are connected with the air source cabinet, and the other ends are connected with a case of the closed bus; and the communication pipe is used for connecting the three-phase cases of the closed bus. The drying system includes an air compressor, a heater, an air exhaust branch, and a second air inlet branch, wherein the air compressor is connected with the heater; the second air inlet branch is respectively arranged on the three-phase cases of the closed bus; the other end of the second air inlet branch is connected with the heater; and the air exhaust branch is connected with the case of the closed bus. The control system includes a temperature and humidity sensor, and a PLC (programmable logic controller) control system, wherein the temperature and humidity sensor is respectively arranged in the three-phase cases of the closed bus, and is connected with the PLC control system. The device provided by invention has low requirement for the sealing performance of the bus, can be used under all conditions, and is convenient and intuitive in use and low in maintenance cost.
Description
Technical field
The present invention relates to prevent condensation device, especially a kind of device that is used to prevent the enclosed busbar dewfall belongs to the equipment for power transmission and distribution technical field.
Background technology
Enclosed busbar be generator with transformer between the transmitting loop that is connected, whether the reliability of its safe operation is directly connected to whole electric system stable, how to guarantee that the permanently effective safe operation of enclosed busbar is vital problem.Enclosed busbar arranges that environment is special, can pass through usually indoor outside, bus is inner can to make the reduction of bus integral insulation performance major safety risks such as discharge, flashover even puncture very easily to occur because of the different dewfall that produce of environment temperature and humidity.
In order to solve the condensation trouble of enclosed busbar, three kinds of measures are arranged usually at present: pressure-fired device, hot blast care device, air drying circulating device.But all there is certain defective in these three kinds of measures; The pressure-fired device is to stop extraneous gas, dust etc. to get in the bus through charge into dry air to bus inside, and is higher to bus self seal performance requirement, and its defective is can't discharge to be retained in the inner moisture of bus in the bus installation process; Simultaneously along with the put into operation prolongation of time of bus; Therefore the situation that seal can occur wearing out can't guarantee the effective internal malleation for a long time, causes anti-condensation device to lose efficacy; Therefore the hot blast care device can only just can't guarantee inner drying at the bus working stage in the operation of bus shutdown stage, and its power consumption is very big simultaneously; The air drying circulating device is to reach the effect that prevents dewfall through cyclic drying bus internal gas, but can cause the bus internal temperature to raise during this operation device bus operation phase, thereby influences the serviceable life of bus built-in electrical insulation spare, seal.
Summary of the invention
The purpose of this invention is to provide a kind of device that prevents the enclosed busbar dewfall; This device is less demanding to the bus sealing property, and can use may command bus temperature inside and humidity down in full operating mode (bus operation and stopped status); Make the permanently effective safe operation of bus; And the equipment operation power consumption is low, uses intuitive and convenient, and maintenance cost is low.
The present invention is achieved through following technical scheme:
A kind of enclosed busbar condensation device that prevents is provided with the three-phase enclosed busbar, and every phase enclosed busbar all is provided with shell and conductor, it is characterized in that: comprise dehumidifier system, drying system; The shell of enclosed busbar is provided with communicating pipe, and the three-phase enclosed busbar is constituted a round-robin integral body; The dehumidifier system comprises source of the gas cabinet, communicating pipe, air-breathing branch road, air inlet branch road one, and an end of air-breathing branch road and air inlet branch road one all is connected source of the gas cashier's office in a shop, and the other end connects the shell of three-phase enclosed busbar respectively; Said drying system comprises air compressor machine, well heater, exhaust branch road, air inlet branch road two; Air compressor machine is connected with well heater; Be respectively equipped with an air inlet branch road two on the shell of three-phase enclosed busbar; The other end of all air inlet branch roads two all is connected with well heater, and the exhaust branch road is connected any one mutually or on the shell of two phases, three-phase enclosed busbar.
The object of the invention can also further realize through following technical measures.
The aforesaid enclosed busbar condensation device that prevents; The source of the gas cabinet comprises blower fan, cooling driers; Blower fan is connected with cooling driers, and an end of air-breathing branch road is connected with blower fan, and an end of air inlet branch road one is connected with cooling driers; The other end of air-breathing branch road and air inlet branch road one has following several kinds of connected modes: a, air-breathing branch road to be connected any phase in the enclosed busbar, and air inlet branch road one is connected with other two respectively through distributing T-pipe; B, air-breathing branch road connect any two phases in the enclosed busbar through threeway, and air inlet branch road one connects an other phase.
The aforesaid enclosed busbar condensation device that prevents is provided with a pressure regulation strainer valve between air compressor machine and the well heater.
The aforesaid enclosed busbar condensation device that prevents, the exhaust branch road other end is provided with a solenoid valve.
The aforesaid enclosed busbar condensation device that prevents, air-breathing branch road, air inlet branch road one, air inlet branch road two all are provided with check valve, and air-breathing branch road, air inlet branch road one, exhaust branch road, air inlet branch road two all pass through flange and are connected with the shell of three-phase enclosed busbar.
The aforesaid enclosed busbar condensation device that prevents; Also be provided with a control system; Comprise temperature sensor, humidity sensor, PLC control system, humidity and temperature controller; Be equipped with temperature sensor, humidity sensor in the shell of enclosed busbar three-phase and link to each other with temperature controller with humidity, said dehumidifier system, drying system, humidity all are connected with the PLC control system with temperature controller.
The present invention prevents the problem of enclosed busbar dewfall through dehumidifier system, drying system, and passes through control system and realize Based Intelligent Control.When bus is worked, through the dehumidifier system with the air sucking-off in the bus, through the freeze drying of source of the gas cabinet; Dry gas is blown in the bus, make the moisture in the bus fewer and feweri, relative humidity constantly reduces; Dewpoint temperature also descends thereupon, and reduces the temperature in the bus simultaneously, and the dehumidifier system adopts is to prevent that through each air circulation dewfall from producing; Therefore less demanding to the airtight performance of whole enclosed busbar; Reduced the high request of pressure-fired device, can manufacturing cost reduced greatly, and later maintenance has been simple airtight performance; When generator outage, drying system plays a role, and utilizes well heater supplemental heat air to be blown into the female interior displacement malaria of envelope; In the enclosed busbar shell, be provided with temperature, humidity is passed to device; After the temperature in the bus, humidity reach the standard value of default; Can control dehumidifier out of service system, drying system through the PLC system; Realize the temperature and humidity in the intelligent control bus, can not influence the serviceable life of enclosed busbar built-in electrical insulation spare, seal; Can solve the condensation trouble under the full operating mode of enclosed busbar through dehumidifier system and drying system, solved the shortcoming that the hot blast care device can only move under stopped status.Through being controlled to save, humidity, pressure and temperature intellectuality consume energy, and stable and reliable operation, practicable unmanned; Complete sets of equipment property is good, convenient site operation; Applicability of the present invention is strong, except that being used for the enclosed busbar product, also can be used for the sealing equipment that other need carry out protection against the tide, antirust maintenance.
Advantage of the present invention and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide with reference to accompanying drawing as an example.
Description of drawings
Fig. 1 is the front view of dehumidifier of the present invention system;
Fig. 2 is the connection layout of communicating pipe of the present invention;
Fig. 3 is the front view of drying system of the present invention;
Fig. 4 is the left view of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
The present invention is the problem that solves enclosed busbar 5 dewfall, and enclosed busbar 5 comprises shell 51, conductor 52, is provided with three-phase altogether.The present invention includes dehumidifier system 2, drying system 3, control system 4: dehumidifier system 2 comprises source of the gas cabinet 20, communicating pipe 21, air-breathing branch road 24, air inlet branch road 1; Source of the gas cabinet 20 comprises blower fan 201, cooling driers 202; Blower fan 201 is connected with cooling driers 202; One end of air-breathing branch road 24 is connected with blower fan 201, and an end of air inlet branch road 1 is connected with cooling driers 202, and the other end has following several kinds of connected modes: a, 24 connections any of air-breathing branch road enclosed busbar 5 mutually with the shell 51 of enclosed busbar 5; Air inlet branch road 1 is connected with other two respectively through distributing T-pipe; Have 3 kinds by this kind connected mode, air-breathing branch road 24 as shown in Figure 1 connects B phase bus, and air inlet branch road 1 connects A, C two phase buses; B, air-breathing branch road 24 connect the enclosed busbar 5 of any two phases through threeway, and air inlet branch road 1 connects an other phase, has 3 kinds by this kind connected mode, connects A, C two phase buses such as air-breathing branch road 24, and air inlet branch road 1 connects B phase buses; Communicating pipe 21 as shown in Figure 2, shell 51 with A, B, C three-phase enclosed busbar 5 linked together, and formed a confined space; Air-breathing branch road 24, air inlet branch road 1 all are provided with a check valve 22.
Drying system 3 comprises air compressor machine 31, pressure regulation strainer valve 33, well heater 32, exhaust branch road 36, air inlet branch road 2 37; Air compressor machine 31 is connected with well heater 32; Be provided with a pressure regulation strainer valve 33 wherein; Be used for controlled pressure, be respectively equipped with an air inlet branch road 2 37 on the three-phase shell 51 of enclosed busbar 5, the other end of all air inlet branch roads 2 37 is connected with well heater 32; Exhaust branch road 36 1 ends are connected any one mutually or on the shell 51 of two phases, three-phase enclosed busbar 5, the other end is provided with a solenoid valve 35; Air inlet branch road 2 37 is provided with check valve 22.Air-breathing branch road 24, air inlet branch road 1, exhaust branch road 36, air inlet branch road 2 37 all pass through flange 38 and are connected with the shell 51 of enclosed busbar 5.
Control system 4 comprises temperature sensor 41, humidity sensor 42, PLC control system 43, humidity and temperature controller 44; Be equipped with temperature sensor 41, humidity sensor 42 in the shell 51 of three-phase enclosed busbar 5 and be connected with temperature controller 44 with humidity, dehumidifier system 2, drying system 3, humidity and temperature controller 44 all are connected with PLC control system 43.
When bus 5 was in running order, control system 4 was launched dehumidifier system 2, and the connected mode through above-mentioned air-breathing branch road 24 and enclosed busbar 5 extracts the humid air in it; Through blower fan 201, be blown into cooling driers 202 and carry out freeze drying, original air is carried out being blown in the enclosed busbar 5 through air inlet branch road 1 behind the reducing temperature and humidity; Because the confined space of communicating pipe 21 and three-phase enclosed busbar 5 formations; So through dehumidifier system 2 operation repeatedly, with the moisture in the enclosed busbar 5 extract fewer and feweri, relative humidity constantly reduces; Dewpoint temperature also descends thereupon, and can also reduce the temperature in the enclosed busbar 5; When generator outage, control system 4 is launched drying device 3, gives well heater 32 heating through air compressor machine 31 with atmospheric compressed; Hot-air is blown into displacement malaria in the enclosed busbar 5 through air inlet branch road 2 37, and after well heater 32 started, hot-air was blown in the enclosed busbar 5; The solenoid valve 35 of exhaust branch road 36 is opened; Soft air is emitted, and closes after setting a period of time through the solenoid valve of PLC control system 43 control, thereby guarantees the safe and reliable operation of enclosed busbar 5 forcefully.
Control system 4 adopts PLC control, can be according to weather condition and ruuning situation, and selecting mode of operation is " manually " or " automatically ".Under automatic mode; Air parameters in the enclosed busbar 5 that humidity and temperature controller 44 analysis temperature sensors 41, humidity sensor 42 are gathered compare with temperature value, the rh value set, when measured value greater than setting value in limited time; The present invention puts into operation automatically by PLC control; Detect enclosed busbar 5 interior air dew point temperature or relative humidity behind the full one-period of operation once more and whether be lower than the setting value lower limit, if it is be lower than lower limit, then out of service; Otherwise continue the operation one-period, the air parameter value is lower than the setting value lower limit and then shuts down in enclosed busbar 5; Can adjust temperature value, rh value that humidity and temperature controller 44 are set according to environment for use and condition in good time, guarantee the safe operation of enclosed busbar 5; Also can under manual mode, control dehumidifier system 2, drying system 3 voluntarily.
Except that the foregoing description, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (6)
1. one kind prevents the enclosed busbar condensation device, is provided with the three-phase enclosed busbar, and every phase enclosed busbar all is provided with shell and conductor, it is characterized in that: comprise dehumidifier system, drying system; The shell of said enclosed busbar is provided with communicating pipe, and the three-phase enclosed busbar is constituted a round-robin integral body; Said dehumidifier system comprises source of the gas cabinet, communicating pipe, air-breathing branch road, air inlet branch road one, and an end of said air-breathing branch road and air inlet branch road one all is connected source of the gas cashier's office in a shop, and the other end connects the shell of three-phase enclosed busbar respectively; Said drying system comprises air compressor machine, well heater, exhaust branch road, air inlet branch road two; Said air compressor machine is connected with well heater; Be respectively equipped with an air inlet branch road two on the shell of three-phase enclosed busbar; The other end of all air inlet branch roads two all is connected with well heater, and said exhaust branch road is connected any one mutually or on the shell of two phases, three-phase enclosed busbar.
2. the enclosed busbar condensation device that prevents as claimed in claim 1; It is characterized in that: said source of the gas cabinet comprises blower fan, cooling driers; Said blower fan is connected with cooling driers, and an end of said air-breathing branch road is connected with blower fan, and an end of air inlet branch road one is connected with cooling driers; The other end of air-breathing branch road and air inlet branch road one has following several kinds of connected modes: a, air-breathing branch road to be connected any phase in the enclosed busbar, and air inlet branch road one is connected with other two respectively through distributing T-pipe; B, air-breathing branch road connect any two phases in the enclosed busbar through threeway, and air inlet branch road one connects an other phase.
3. the enclosed busbar condensation device that prevents as claimed in claim 1 is characterized in that: be provided with a pressure regulation strainer valve between said air compressor machine and the well heater.
4. the enclosed busbar condensation device that prevents as claimed in claim 1 is characterized in that: the said exhaust branch road other end is provided with a solenoid valve.
According to claim 1 or claim 2 prevent the enclosed busbar condensation device; It is characterized in that: said air-breathing branch road, air inlet branch road one, air inlet branch road two all are provided with check valve, and air-breathing branch road, air inlet branch road one, exhaust branch road, air inlet branch road two all pass through flange and be connected with the shell of three-phase enclosed busbar.
6. the enclosed busbar condensation device that prevents as claimed in claim 1; It is characterized in that: also be provided with a control system; Comprise temperature sensor, humidity sensor, PLC control system, humidity and temperature controller; Be equipped with temperature sensor, humidity sensor in the shell of enclosed busbar three-phase and link to each other with temperature controller with humidity, said dehumidifier system, drying system, humidity all are connected with the PLC control system with temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103340491A CN102830738A (en) | 2012-09-12 | 2012-09-12 | Device for preventing moisture condensation of closed bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103340491A CN102830738A (en) | 2012-09-12 | 2012-09-12 | Device for preventing moisture condensation of closed bus |
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| Publication Number | Publication Date |
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| CN102830738A true CN102830738A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103340491A Pending CN102830738A (en) | 2012-09-12 | 2012-09-12 | Device for preventing moisture condensation of closed bus |
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| CN (1) | CN102830738A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770459A (en) * | 2016-12-27 | 2017-05-31 | 镇江市高等专科学校 | High pressure enclosed busbar dew point monitoring device and control method |
| CN107491108A (en) * | 2017-10-21 | 2017-12-19 | 通化名成电瓷电器有限公司 | Intelligent micro-positive pressure of enclosed busbar control system |
| CN107643093A (en) * | 2016-07-21 | 2018-01-30 | 江苏大全封闭母线有限公司 | Tube type bus Humidity Detection structure |
| CN113491930A (en) * | 2021-05-24 | 2021-10-12 | 保定宝汇通机电设备有限公司 | Anti-dewing device for enclosed bus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2571045Y (en) * | 2002-09-24 | 2003-09-03 | 镇江华东电力设备制造厂 | Isolated phase bus air circulation drying apparatus |
| DE102007023980B3 (en) * | 2007-05-23 | 2008-09-25 | Rittal Gmbh & Co. Kg | Power busbar assembly |
| CN101831658A (en) * | 2010-05-14 | 2010-09-15 | 中国人民解放军理工大学工程兵工程学院 | Drying and corrosion prevention method and system of main cable of suspension bridge |
| CN201781248U (en) * | 2010-08-20 | 2011-03-30 | 镇江华东电力设备制造厂 | Hot-air maintenance device for isolated phase buses |
| CN201838959U (en) * | 2010-08-20 | 2011-05-18 | 镇江华东电力设备制造厂 | Anti-condensation drying system of isolated-phase enclosed busbar |
| CN202887030U (en) * | 2012-09-12 | 2013-04-17 | 江苏大全封闭母线有限公司 | Condensation-prevention device for enclosed bus |
-
2012
- 2012-09-12 CN CN2012103340491A patent/CN102830738A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2571045Y (en) * | 2002-09-24 | 2003-09-03 | 镇江华东电力设备制造厂 | Isolated phase bus air circulation drying apparatus |
| DE102007023980B3 (en) * | 2007-05-23 | 2008-09-25 | Rittal Gmbh & Co. Kg | Power busbar assembly |
| CN101831658A (en) * | 2010-05-14 | 2010-09-15 | 中国人民解放军理工大学工程兵工程学院 | Drying and corrosion prevention method and system of main cable of suspension bridge |
| CN201781248U (en) * | 2010-08-20 | 2011-03-30 | 镇江华东电力设备制造厂 | Hot-air maintenance device for isolated phase buses |
| CN201838959U (en) * | 2010-08-20 | 2011-05-18 | 镇江华东电力设备制造厂 | Anti-condensation drying system of isolated-phase enclosed busbar |
| CN202887030U (en) * | 2012-09-12 | 2013-04-17 | 江苏大全封闭母线有限公司 | Condensation-prevention device for enclosed bus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643093A (en) * | 2016-07-21 | 2018-01-30 | 江苏大全封闭母线有限公司 | Tube type bus Humidity Detection structure |
| CN106770459A (en) * | 2016-12-27 | 2017-05-31 | 镇江市高等专科学校 | High pressure enclosed busbar dew point monitoring device and control method |
| CN107491108A (en) * | 2017-10-21 | 2017-12-19 | 通化名成电瓷电器有限公司 | Intelligent micro-positive pressure of enclosed busbar control system |
| CN113491930A (en) * | 2021-05-24 | 2021-10-12 | 保定宝汇通机电设备有限公司 | Anti-dewing device for enclosed bus |
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Application publication date: 20121219 |