CN203823441U - Enclosed busbar micro positive pressure device of engine - Google Patents
Enclosed busbar micro positive pressure device of engine Download PDFInfo
- Publication number
- CN203823441U CN203823441U CN201420255100.4U CN201420255100U CN203823441U CN 203823441 U CN203823441 U CN 203823441U CN 201420255100 U CN201420255100 U CN 201420255100U CN 203823441 U CN203823441 U CN 203823441U
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- positive pressure
- micro positive
- pressure device
- enclosed
- filter
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Abstract
An enclosed busbar micro positive pressure device of an engine is characterized by comprising an instrument air compressor, an instrument dryer, an air storage tank, a manual stop valve, a filter, a reducing valve, a solenoid valve and an enclosed busbar, wherein the instrument air compressor, the instrument dryer and the air storage tank are sequentially connected through steel pipes. Pressure gages are installed between the manual stop valve and the filter and between the reducing valve and the solenoid valve respectively. The station-service or instrument air compressor which is stable in system operation and high in dryness is adopted as an air source of an improved enclosed busbar micro positive pressure system, the improvement cost is low, and operation reliability is high.
Description
Technical field
The design relates to a kind of enclosed bus of generator micro positive pressure device, belongs to technical field of power generation.
Background technique
The advantages such as in the generator set in current most thermal power plants at home, generator isolated-phase enclosed bus is easy to use because having, steel structure generates heat less, safety reliability is high, operation maintenance workload is relatively little, not affected by environment are widely used.Because isolated-phase enclosed bus is relative closure, when external temperature declines or load current reduces while causing that bus temperature reduces, the air pressure in enclosed busbar will reduce, will be from some leakage points suction people air, bring moisture, dust etc. into, bring potential safety hazard to the operation of enclosed busbar.For preventing that extraneous moisture, dust from entering, electric closed bus adopts mostly is adsorption type micro positive pressure device, to the pressurized air that clean dry is provided in enclosed busbar, and regulate pressure by automatic controller, make the air pressure in enclosed busbar a little more than external atmosphere pressure (300～2500 Pa), form sealing gland, guarantee the dielectric level of enclosed busbar.This device is mostly the auxiliary products of bus factory, press automatic start-stop work design, the dehumidifying of employing molecular sieve, but because of its design unreasonable, equipment configuration is low, cause in device running air compressor overload, solenoid valve damage fault often occur, even cause air compressor motor to burn, safeguard to safety in operation and enclosed busbar and cause very big inconvenience.
Summary of the invention
In view of the above problems, through research, micro positive pressure device is optimized to transformation, retain former micro positive pressure device air-pressure controlling part, cancel the air compressor that former micro positive pressure device is equipped with, employing through the station-service instrument of super-dry as air feed source of the gas, by installing the accessories such as reduction valve, solenoid valve additional, realize micro positive pressure level (300～2500Pa) in enclosed busbar.
For achieving the above object, the design realizes by following technological means:
A kind of enclosed bus of generator micro positive pressure device, it is characterized in that: described enclosed bus of generator micro positive pressure device comprises that air compressor, the instrument for instrument that by steel pipe, are connected in turn form with exsiccator and gas holder, hand stop valve, filter, reduction valve, solenoid valve, enclosed busbar, are equipped with respectively pressure gauge between described hand stop valve and filter, reduction valve and solenoid valve.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: the outlet pressure scope of described solenoid valve is 0～3000Pa.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: described filter is that filter precision is the moisture filter of 50 μ m.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: the pressure gauge between described hand stop valve and filter is the pressure gauge of 0-1Mpa scope, and the pressure gauge between described reduction valve and solenoid valve is 0-5000Pa pressure gauge.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: described steel pipe adopts stainless-steel pipe.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: the gas pressure scope that enters enclosed busbar is 300～2500Pa, flow 1m
3/ min.
The invention has the beneficial effects as follows: improved micro-positive pressure of enclosed busbar system source of the gas employing system run all right, the station-service instrument pressurized air that degree of dryness is high, reforming cost is cheap, and operational reliability is high.
Accompanying drawing explanation
Fig. 1 is that the utility model forms structural representation.
The implication of drawing reference numeral is as follows: 1 instrument air compressor, exsiccator and gas holder for 2 instrument, 3 hand stop valves, 4 filters, 5 reduction valve, 6 solenoid valves, 7 pressure gauges, 8 enclosed busbars.
Embodiment
Below in conjunction with Figure of description, design is further described.
As shown in Figure 1, a kind of enclosed bus of generator micro positive pressure device, it is characterized in that: described enclosed bus of generator micro positive pressure device comprises that air compressor 1, the instrument for instrument that by steel pipe, are connected in turn form with exsiccator and gas holder 2, hand stop valve 3, filter 4, reduction valve 5, solenoid valve 6, enclosed busbar 8, are equipped with respectively pressure gauge 7 between described hand stop valve 3 and filter 4, reduction valve 5 and solenoid valve 6.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: the outlet pressure scope of described solenoid valve 6 is 0～3000Pa.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: described filter 4 for filter precision be the moisture filter of 50 μ m.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, it is characterized in that: the pressure gauge between described hand stop valve 3 and filter 4 is the pressure gauge 7 of 0-1Mpa scope, and the pressure gauge between described reduction valve 5 and solenoid valve 6 is 0-5000Pa pressure gauge 7.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: described steel pipe adopts stainless-steel pipe.
Preferably, described a kind of enclosed bus of generator micro positive pressure device, is characterized in that: the gas pressure scope that enters enclosed busbar 8 is 300～2500Pa, flow 1m
3/ min.
Normal air is after station-service instrument compresses with air compressor, through device for drying and filtering, enter instrument gas holder, dry instrument passes through filter, gas pressure reducer and electromagnetic valve with air by pipeline and enters enclosed bus of generator, gas pressure scope 300～2500Pa, flow 1m 3/min.For guaranteeing in enclosed busbar that gas pressure is in predetermined range, the solenoid valve that enclosed busbar inlet ductwork is installed, sets that operating pressure is spacing is: as enclosed busbar internal pressure <500Pa, solenoid valve is opened; When enclosed busbar pressure >2800Pa, closed electromagnetic valve.By pressure control section solenoid valve, open and close to realize the stable control to the inflation pressure of enclosed busbar.
More than show and described the design's basic principle, major character and advantage.The technician of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described of describing in above-described embodiment and specification; do not departing under the prerequisite of the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (6)
1. an enclosed bus of generator micro positive pressure device, it is characterized in that: described enclosed bus of generator micro positive pressure device comprises that air compressor, the instrument for instrument that by steel pipe, are connected in turn form with exsiccator and gas holder, hand stop valve, filter, reduction valve, solenoid valve, enclosed busbar, are equipped with respectively pressure gauge between described hand stop valve and filter, reduction valve and solenoid valve.
2. a kind of enclosed bus of generator micro positive pressure device as claimed in claim 1, is characterized in that: the outlet pressure scope of described solenoid valve is 0～3000Pa.
3. a kind of enclosed bus of generator micro positive pressure device as claimed in claim 1, is characterized in that: described filter is that filter precision is the moisture filter of 50 μ m.
4. a kind of enclosed bus of generator micro positive pressure device as claimed in claim 1, it is characterized in that: the pressure gauge between described hand stop valve and filter is the pressure gauge of 0-1Mpa scope, the pressure gauge between described reduction valve and solenoid valve is 0-5000Pa pressure gauge.
5. a kind of enclosed bus of generator micro positive pressure device as claimed in claim 1, is characterized in that: described steel pipe adopts stainless-steel pipe.
6. a kind of enclosed bus of generator micro positive pressure device as claimed in claim 1, is characterized in that: the gas pressure scope that enters enclosed busbar is 300～2500Pa, flow 1m
3/ min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255100.4U CN203823441U (en) | 2014-05-19 | 2014-05-19 | Enclosed busbar micro positive pressure device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255100.4U CN203823441U (en) | 2014-05-19 | 2014-05-19 | Enclosed busbar micro positive pressure device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823441U true CN203823441U (en) | 2014-09-10 |
Family
ID=51478942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255100.4U Expired - Fee Related CN203823441U (en) | 2014-05-19 | 2014-05-19 | Enclosed busbar micro positive pressure device of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076010A (en) * | 2016-07-15 | 2016-11-09 | 中国神华能源股份有限公司 | The ventilation protection device of compressed air purifier and self-cooled enclosed busbar |
| CN113103996A (en) * | 2021-04-06 | 2021-07-13 | 深圳元戎启行科技有限公司 | Lens dew-condensation eliminating device, camera sensor, and unmanned device |
-
2014
- 2014-05-19 CN CN201420255100.4U patent/CN203823441U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076010A (en) * | 2016-07-15 | 2016-11-09 | 中国神华能源股份有限公司 | The ventilation protection device of compressed air purifier and self-cooled enclosed busbar |
| CN113103996A (en) * | 2021-04-06 | 2021-07-13 | 深圳元戎启行科技有限公司 | Lens dew-condensation eliminating device, camera sensor, and unmanned device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Jian Xin Lu 212009 Zhenjiang province Jiangsu City Jingkou Industrial Park No. 36 Patentee after: JIANGSU ENTC NUCLEAR TECHNOLOGY JOINT STOCK Co.,Ltd. Address before: 212006 Jingkou District Zhenjiang City Industrial Park in Jiangsu Province Patentee before: ENTC NUCLEAR MATERIALS TECHNOLOGY (JIANGSU) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |