CN203442484U - Novel generator enclosed busbar micro positive pressure device - Google Patents
Novel generator enclosed busbar micro positive pressure device Download PDFInfo
- Publication number
- CN203442484U CN203442484U CN201320400022.8U CN201320400022U CN203442484U CN 203442484 U CN203442484 U CN 203442484U CN 201320400022 U CN201320400022 U CN 201320400022U CN 203442484 U CN203442484 U CN 203442484U
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- control device
- positive pressure
- air
- enclosed busbar
- compressed air
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- Expired - Fee Related
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Abstract
The utility model discloses a novel generator enclosed busbar micro positive pressure device which comprises a compressed air tank, an air compressor, an air inflation control device, a pressure control cabinet and a three-phase enclosed busbar. The air compressor is controlled by the air inflation control device, an inlet of the compressed air tank is connected with the air compressor through a pipeline with a valve, the inlet of the compressed air tank is further connected with an instrument compressed air mother tube through a pipeline with a valve, an outlet of the compressed air tank supplies air for the three-phase enclosed busbar through a first branch and a second branch which are connected in parallel, the air inflation control device is arranged in the first branch, a first electromagnetic valve K1 controlled by the air inflation control device is connected in the first branch in series, and a second electromagnetic valve K2 controlled by the pressure control cabinet is connected in the second branch in series. The novel generator enclosed busbar micro positive pressure device can ensure micro positive pressure of the generator enclosed busbar, and operation reliability of the whole device is high.
Description
Technical field
The utility model relates to a kind of novel enclosed bus of generator micro positive pressure device.
Background technique
What existing enclosed bus of generator micro positive pressure device adopted is that independently source of the gas is supplied with; as shown in Figure 1; in running; fault point is many; and the protection of air compressor design power and control unit to set be that to protect micro positive pressure device body be main, can not guarantee in enclosed bus of generator that desired 300Pa is to the micro positive pressure requirement of 2500Pa.
Therefore, be necessary to design a kind of novel enclosed bus of generator micro positive pressure device.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of novel enclosed bus of generator micro positive pressure device, and this novel enclosed bus of generator micro positive pressure device can be guaranteed the micro positive pressure of enclosed bus of generator, installs whole operational reliability high.
The technical solution of model utility is as follows:
An enclosed bus of generator micro positive pressure device, comprise compressed air reservoir, air compressor, aeration control device, pressure control cabinet and three-phase enclosed busbar; Air compressor is controlled by aeration control device;
The entrance of compressed air reservoir is connected with air compressor by the pipeline with valve; The entrance of compressed air reservoir is also connected with the female pipe of pressurized air with instrument by the pipeline with valve;
The outlet of compressed air reservoir is three-phase enclosed busbar air feed by the first branch road and second branch road of parallel connection; Aeration control device is arranged in the first branch road, is also serially connected with the first solenoid valve 11 that is controlled by aeration control device in the first branch road; In the second branch road, be serially connected with the second solenoid valve 12 that is controlled by pressure control cabinet.
The air pressure-sampling Guan Junyu aeration control device that three-phase enclosed busbar is drawn and the force samples end of pressure control cabinet are connected.
Beneficial effect:
Enclosed bus of generator micro positive pressure device of the present utility model, by getting gas from " air compressor ", separately increases a set of air feeder as gas source, and original system re-start debugging good after source of the gas in support, can greatly improve the reliability of system.
In addition, adopt main building instrument to use pressurized air as gas source, can reduce original system and carry air compressor start-stop time frequently, extend the working life of air compressor.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of existing enclosed bus of generator micro positive pressure device;
Fig. 2 is the general structure schematic diagram of novel enclosed bus of generator micro positive pressure device.
Label declaration: 1-three-phase enclosed busbar, 2-air pressure-sampling pipe, 3-air compressor, 4-compressed air reservoir, 5-aeration control device, 6-electromagnetic valve cable, 7-air compressor control cables, the female pipe of pressurized air for 8-instrument, 9-pressure control cabinet, 10-is to pressure control cabinet feed cable, 11-the first solenoid valve; 12-the second solenoid valve, 13-air compressor control cables, 14-electric power incoming line cable.
Embodiment
Below with reference to the drawings and specific embodiments, the utility model is described in further details:
Embodiment 1:
As shown in Figure 2, a kind of novel enclosed bus of generator micro positive pressure device, comprises compressed air reservoir, air compressor, aeration control device, pressure control cabinet and three-phase enclosed busbar; Air compressor is controlled by aeration control device;
The entrance of compressed air reservoir is connected with air compressor by the pipeline with valve; The entrance of compressed air reservoir is also connected with the female pipe of pressurized air with instrument by the pipeline with valve;
The outlet of compressed air reservoir is three-phase enclosed busbar air feed by the first branch road and second branch road of parallel connection; Aeration control device is arranged in the first branch road, is also serially connected with the first solenoid valve 11 that is controlled by aeration control device in the first branch road; In the second branch road, be serially connected with the second solenoid valve 12 that is controlled by pressure control cabinet.
The air pressure-sampling Guan Junyu aeration control device that three-phase enclosed busbar is drawn and the force samples end of pressure control cabinet are connected.
Generator seals female micro positive pressure device protection configuration:
1, the female interior gas overpressure protection of envelope:
While sealing female internal pressure lower than 500Pa, open the second solenoid valve 12, during higher than 2500Pa, close the second solenoid valve 12.
2, the female interior gas undervoltage warning of envelope:
Seal female internal pressure lower than 500Pa, when device is failed timely tonifying Qi, send " envelope is female under-voltage " alarm signal.
3, seal female leakage alarm
Seal female internal pressure lower than 500Pa, open the second solenoid valve 12 tonifying Qi after 5～10 minutes, when pressure can not recover 2500Pa, send " the female gas leakage of envelope " alarm signal.
Claims (2)
1. a novel enclosed bus of generator micro positive pressure device, is characterized in that, comprises compressed air reservoir, air compressor, aeration control device, pressure control cabinet and three-phase enclosed busbar; Air compressor is controlled by aeration control device;
The entrance of compressed air reservoir is connected with air compressor by the pipeline with valve; The entrance of compressed air reservoir is also connected with the female pipe of pressurized air with instrument by the pipeline with valve;
The outlet of compressed air reservoir is three-phase enclosed busbar air feed by the first branch road and second branch road of parallel connection; Aeration control device is arranged in the first branch road, is also serially connected with the first solenoid valve K1 that is controlled by aeration control device in the first branch road; In the second branch road, be serially connected with the second solenoid valve K2 that is controlled by pressure control cabinet.
2. novel enclosed bus of generator micro positive pressure device according to claim 1, is characterized in that, the air pressure-sampling Guan Junyu aeration control device that three-phase enclosed busbar is drawn and the force samples end of pressure control cabinet are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400022.8U CN203442484U (en) | 2013-07-05 | 2013-07-05 | Novel generator enclosed busbar micro positive pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400022.8U CN203442484U (en) | 2013-07-05 | 2013-07-05 | Novel generator enclosed busbar micro positive pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442484U true CN203442484U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320400022.8U Expired - Fee Related CN203442484U (en) | 2013-07-05 | 2013-07-05 | Novel generator enclosed busbar micro positive pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375419A (en) * | 2015-10-27 | 2016-03-02 | 国家电网公司 | Intelligent micro positive pressure system |
| CN105762737A (en) * | 2016-04-11 | 2016-07-13 | 北京良乡昊融电力设备有限公司 | Micro-positive pressure system for separated-phase enclosed busbar and micro-positive pressure implementation method |
| CN111682478A (en) * | 2020-04-07 | 2020-09-18 | 福建福清核电有限公司 | Combined device and method for keeping micro-positive pressure of closed bus for nuclear power plant |
-
2013
- 2013-07-05 CN CN201320400022.8U patent/CN203442484U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375419A (en) * | 2015-10-27 | 2016-03-02 | 国家电网公司 | Intelligent micro positive pressure system |
| CN105762737A (en) * | 2016-04-11 | 2016-07-13 | 北京良乡昊融电力设备有限公司 | Micro-positive pressure system for separated-phase enclosed busbar and micro-positive pressure implementation method |
| CN105762737B (en) * | 2016-04-11 | 2018-07-17 | 北京良乡昊融电力设备有限公司 | A kind of the micro-positive pressure system and micro-positive pressure implementation method of isolated-phase enclosed bus |
| CN111682478A (en) * | 2020-04-07 | 2020-09-18 | 福建福清核电有限公司 | Combined device and method for keeping micro-positive pressure of closed bus for nuclear power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20150705 |
|
| EXPY | Termination of patent right or utility model |