CN201625453U - Generator inner cooling water double-element filter - Google Patents
Generator inner cooling water double-element filter Download PDFInfo
- Publication number
- CN201625453U CN201625453U CN2010201445851U CN201020144585U CN201625453U CN 201625453 U CN201625453 U CN 201625453U CN 2010201445851 U CN2010201445851 U CN 2010201445851U CN 201020144585 U CN201020144585 U CN 201020144585U CN 201625453 U CN201625453 U CN 201625453U
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- filter
- screen pack
- plate
- cooling water
- connecting plate
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Abstract
Disclosed is a generator inner cooling water double-element filter. A casing flange and a connecting flange cover connected with the same are arranged at the upper end of a filter casing, ball valves communicated with the inside of the filter casing are respectively arranged on the outer sides of the connecting flange cover and the bottom of the filter casing, a water inlet pipe and a water outlet pipe communicated with the inside of the filter casing are arranged on the lateral face of the filter casing, positioning blocks are arranged on the upper portion of the inner wall of the filter casing, while an outer connecting plate is arranged on the lower portion of the inner wall of the filter casing, an intermediate connecting plate connected with an inner connecting plate is arranged on the outer connecting plate, outer ladder-type wire wound filter screens are arranged on the positioning blocks and the intermediate connecting plate, inner laser perforated filter screen plates inside the outer ladder-type wire wound filter screens are positioned on the inner connecting plate, and a seal gasket is arranged between the upper ends of the outer ladder-type wire wound filter screens and the upper ends of the inner laser perforated filter screen plates. The filter has the advantages of stable and reliable work, low operation and maintenance expense, convenient filter screen detachment and the like, and can be popularized and used in generator inner cooling water systems.
Description
Technical field
The utility model belongs to the filter technology field, is specifically related to a kind of filter that is used for generator internal cooling water main system and backwashing system.
Background technology
Requirement according to State Power Corporation's " preventing 25 important requirements of electrical production major accident " regulation, in installing stator, generator in the cooling water backwashing system filter must be installed, all filter screens of filter should be the novel filter screen of corrosion resistant plate, prevent that the filter screen fragmentation from entering coil.At present, the filter structure of cooling water system mainly contains two kinds in the state time generator: stainless steel ladder type wrapping wire filter structure and stainless steel laser punching web plate structure.The shortcoming of stainless steel ladder type wrapping wire structure is that some tablets and wire twister can pass through filter screen, finally enters generator copper cash rod, causes deposition obstruction accident; The shortcoming of stainless steel laser punching web plate structure is to require down at equal through-flow ratio, and the volume of member is too big, and stops up easily, and producer frequently clears up, and has increased maintenance.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned stainless steel ladder type wrapping wire filter screen and stainless steel laser punching web plate, provide a kind of reasonable in design, working stability reliable, the operation maintenance amount is low, the generator internal cooling water twin-core filter of filter screen convenient disassembly.
To achieve these goals, the utility model is taked following technical solution: the connecting flange lid that shell flange is set and connects with shell flange in the filter housings upper end, connecting flange cover with the filter housings bottom outside be respectively arranged with filter housings in the ball valve that links, the side of filter housings be provided with filter housings in the water inlet pipe and the outlet pipe that link, the filter housings upper inside wall is provided with locating piece, the bottom is provided with outer tie-plate, the middle tie-plate that connects with interior tie-plate is set on the outer tie-plate, locating piece and middle tie-plate are provided with outer ladder type wrapping wire screen pack, interior tie-plate is provided with the internal layer laser boring screen pack that is positioned at outer ladder type wrapping wire screen pack, is provided with sealing gasket between outer ladder type wrapping wire screen pack upper end and the internal layer laser boring screen pack upper end.
The through-flow ratio of internal layer laser boring screen pack of the present utility model is 1: 3, and the through-flow ratio of outer ladder type wrapping wire screen pack is 1: 11.
The utility model adopts double-layer leaching net is set in filter, outer filter adopts stainless steel ladder type wrapping wire filter structure, the micropore stainless (steel) wire plate structure that inner filter screen adopts high intensity laser beam to get, during operation, most impurity particle is filtered by outer stainless steel ladder type wrapping wire, have only few part to be filtered by the laser boring screen pack, stop that impurity and particle enter generator line rod, prevent that the accident that the impurity accumulation causes the line rod to block from taking place, filter can steady in a long-term move, prolong maintenance period, shortened maintenance cost, improved the service life of generator.The utlity model has advantages such as working stability is reliable, operation and maintenance cost is low, filter screen convenient disassembly, can promote the use of in the generator internal cooling water system.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
The specific embodiment
Below in conjunction with drawings and Examples the specific embodiment of the present utility model is done explanation in further detail.
As shown in Figure 1, the generator internal cooling water twin-core filter of present embodiment is made of shell flange 1, connecting flange lid 2, sealing gasket 3, ball valve 4, locating piece 5, outer ladder type wrapping wire screen pack 6, internal layer laser boring screen pack 7, filter housings 8, middle tie-plate 9, outer tie-plate 10, outlet pipe 11, interior tie-plate 12, water inlet pipe 13 connections.
Welding is connected with shell flange 1 in filter housings 8 upper ends, the upper surface of shell flange 1 is with the screw threads for fastening connector connecting flange lid 2 that has been fixedly connected, connecting flange covers on the lower surface of 2 upper surfaces and filter housings 8 and is separately installed with ball valve 4, and ball valve 4 is by linking in conduit and the filter housings 8.The outer left surface tops welding of filter housings 8 be connected with filter housings 8 in the water inlet pipe 13 that links, the outer right flank bottoms welding of filter housings 8 be connected with filter housings 8 in the outlet pipe 11 that links, the end welding of water inlet pipe 13 and outlet pipe 11 is connected with ring flange, is used for linking with generator internal cooling water main system pipeline or backwashing system pipeline.
The welding of filter housings 8 inwall bottoms is connected with outer tie-plate 10, by thread connection middle tie-plate 9 is installed on the medial surface of outer tie-plate 10, tie-plate 12 in the medial surface of middle tie-plate 9 is equipped with by thread connection, the lower end of outer ladder type wrapping wire screen pack 6 connects with the medial surface welding of middle tie-plate 9, welding is connected with 5,4 locating pieces of 4 locating pieces, 5 usefulness screw threads for fastening connectors and is fixedly connected in filter housings 8 upper inside wall on the ring flange of the upper end of outer ladder type wrapping wire screen pack 6.The lower end of internal layer laser boring screen pack 7 connects with the welding of the medial surface of interior tie-plate 12, the ring flange of internal layer laser boring screen pack 7 upper ends closely is pressed in the ring flange upper surface of the upper end of outer ladder type wrapping wire screen pack 6, internal layer laser boring screen pack 7 is installed in the outer ladder type wrapping wire screen pack 6, between the ring flange of the ring flange of internal layer laser boring screen pack 7 upper ends and outer ladder type wrapping wire screen pack 6 upper ends sealing gasket 3 is installed.
The through-flow ratio of the internal layer laser boring screen pack 7 of this example is 1: 3, and the through-flow ratio of outer ladder type wrapping wire screen pack 6 is 1: 11, and internal layer laser boring screen pack 7 and outer ladder type wrapping wire screen pack 6 all adopt high-quality stainless steel 316L to make.
The Inlet and outlet water flow process of present embodiment is as follows:
Generator internal cooling water is in water inlet pipe 13 enters filter housings 8, and outer ladder type wrapping wire screen pack 6 filters the impurity in the generator internal cooling water earlier, and most of impurity is blocked; Generator internal cooling water through outer ladder type wrapping wire screen pack 6 flows through internal layer laser boring screen pack 7 again, all impurity greater than internal layer laser boring screen pack 7 mesh diameters are blocked, and filtered generator internal cooling water flows out from bottom outlet pipe 11.After the filter of generator internal cooling water through being provided with double-layer filtering net filtered, water quality was pure, satisfies normal service requirement.
According to the description of above the utility model structure as can be known, the utlity model has following advantage:
1, reasonable in design. Outer filter adopts stainless steel ladder type winding structure, and inner filter screen adopts the laser boring mesh-plate structure, the through-flow ratio of laser boring screen pack can be reduced, because most of impurity is tackled by outer trapezoid wind wire filter screen, can reduce the volume of equipment.
2, working stability is reliable, and is safe. Eliminated because of conventional filter screen metal winded filtering core and the broken accident potential that causes interior cooling water line rod to stop up of nonmetal winded filtering core; Also overcome the defective that tablet, thread can see through the ladder type winding structure, security is higher.
3, maintenance is few, operating cost is low. The through-flow ratio of outer ladder type wrapping wire filter screen is very high, can guarantee to move reliably and with long-term, has reduced the number of times of cleaning, and maintenance and cost are controlled.
4, filter screen convenient disassembly. The ectonexine filter screen adopts and is threaded, and is for convenience detach.
5, precision height, good uniformity.Because internal layer adopts the laser boring screen pack, mesh precision and uniformity are fairly regular and do not have a burr.
6, intensity and corrosion resistance height.The material of ladder type wrapping wire filter screen and laser boring screen pack adopts high-quality stainless steel 316L, has guaranteed the performance of steady operation under the current of big intensity HI high impact, and corrosion resistance is also very outstanding simultaneously.
7, be suitable for the import and export connected mode of all places.Under the situation that satisfies through-flow ratio, can make multi-form water filter, as high in and low out formula filter, low in and high out formula water filter, the angle-inserting type water filter, horizontal entrance and exit type water filter goes out formula water filter etc. during side is advanced.
Claims (2)
1. generator internal cooling water twin-core filter, the connecting flange lid (2) that is provided with shell flange (1) and connects in filter housings (8) upper end with shell flange (1), connecting flange lid (2) is gone up and filter housings (8) bottom outside is respectively arranged with and filter housings (8) in the ball valve (4) that links, the side of filter housings (8) be provided with filter housings (8) in the water inlet pipe (13) and the outlet pipe (11) that link, it is characterized in that: filter housings (8) upper inside wall is provided with locating piece (5), the bottom is provided with outer tie-plate (10), outer tie-plate (10) is gone up the middle tie-plate (9) that connects with interior tie-plate (12) is set, locating piece (5) and middle tie-plate (9) are provided with outer ladder type wrapping wire screen pack (6), interior tie-plate (12) is provided with the internal layer laser boring screen pack (7) that is positioned at outer ladder type wrapping wire screen pack (6), is provided with sealing gasket (3) between outer ladder type wrapping wire screen pack (6) upper end and internal layer laser boring screen pack (7) upper end.
2. according to the described generator internal cooling water twin-core of claim 1 filter, it is characterized in that: the through-flow ratio of said internal layer laser boring screen pack (7) is 1: 3, and the through-flow ratio of outer ladder type wrapping wire screen pack (6) is 1: 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201445851U CN201625453U (en) | 2010-03-30 | 2010-03-30 | Generator inner cooling water double-element filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201445851U CN201625453U (en) | 2010-03-30 | 2010-03-30 | Generator inner cooling water double-element filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201625453U true CN201625453U (en) | 2010-11-10 |
Family
ID=43056835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201445851U Expired - Fee Related CN201625453U (en) | 2010-03-30 | 2010-03-30 | Generator inner cooling water double-element filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201625453U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174200A (en) * | 2014-07-31 | 2014-12-03 | 美盛隆制罐（惠州）有限公司 | Backwashing filter |
| CN104190135A (en) * | 2014-09-06 | 2014-12-10 | 陈巧琴 | Double-layered filter net |
-
2010
- 2010-03-30 CN CN2010201445851U patent/CN201625453U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174200A (en) * | 2014-07-31 | 2014-12-03 | 美盛隆制罐（惠州）有限公司 | Backwashing filter |
| CN104174200B (en) * | 2014-07-31 | 2016-06-22 | 美盛隆制罐（惠州）有限公司 | A kind of back-flushing filtering device |
| CN104190135A (en) * | 2014-09-06 | 2014-12-10 | 陈巧琴 | Double-layered filter net |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20170330 |