CN204337870U - Automatic cleaning-type high pressure fine filter - Google Patents
Automatic cleaning-type high pressure fine filter Download PDFInfo
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- CN204337870U CN204337870U CN201420761021.0U CN201420761021U CN204337870U CN 204337870 U CN204337870 U CN 204337870U CN 201420761021 U CN201420761021 U CN 201420761021U CN 204337870 U CN204337870 U CN 204337870U
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Abstract
The utility model relates to a kind of cleaning-type high pressure fine filter automatically, it comprises housing (1), the inside of housing (1) is provided with web-roll core (3), the inside of web-roll core (3) is provided with the blowdown funnel (4) of lateral openings, blow-off line (2) is provided with in housing (1), the upper semisection of blow-off line (2) is positioned on the central shaft of housing (1), the lower semisection of blow-off line (2) is communicated to housing (1) downwards outward, blowdown funnel (4) is communicated with the upper semisection of blow-off line (2), the top of housing (1) is provided with motor (5), motor (5) is connected with the upper semisection of blow-off line (2) by the locating and detecting device (6) below it and transmission device (7).The utility model has can be installed on the outlet of power plant main feed system condensate pump, high workload pressure can be born, possess automatically clean dirt eliminating function, advantage that filtering accuracy reaches 0.1 ~ 0.3mm.
Description
Technical field
The utility model relates to a kind of cleaning-type high pressure fine filter automatically, and it possesses and automatically cleans dirt eliminating function, can be applicable to the place that power plant's main feed system condensate pump outlet and other similar media operation pressure reach mesohigh grade.
Background technology
The filter of Present Domestic power plant main feed system is generally positioned at condensate pump entrance, and operating pressure is lower, is only 0 ~ 0.4MPa, and Design and manufacture requires lower; Filter is artificial periodic cleaning pattern, and its structure is: a basket filter screen is placed in housing, fixes with bolt and housing.Condensate water is flowed in filter screen by the water inlet on housing, flows out outside filter screen after strainer filtering, is then flowed out by the delivery port on housing.When the rubbish in filter screen be accumulated to a certain degree, differential pressure is elevated to certain numerical value before and after filter screen time, termination of pumping or guard filter, taken out by dismounting in housing by filter screen, manual cleaning wire side, returns dress after cleaning up again, continues operation of putting into production.Its subject matter existed is: (1) needs human at periodic intervals to disintegrate cleaning filter filter screen, and workload is large.(2) in order to reduce the frequency of manual cleaning, the aperture of filter screen just needs to design larger, reaches 2 ~ 4mm, is blocked easily to avoid filter screen by the impurity in condensate water.(3) the stainless steel wire woven screen that one deck aperture is 0.1 ~ 0.3mm, in order to improve filtering accuracy, has been installed additional inside filter screen in the power plant had.But the steel wire diameter of braided steel wire net is generally only 0.05 ~ 0.12mm, intensity is very low, and when before and after filter screen, differential pressure hydraulic pressure that is higher, that be subject to is larger, screen cloth is easy to tear, destroy.
Therefore seek a kind ofly can be installed on the outlet of power plant main feed system condensate pump, high workload pressure can be born, possess automatically clean dirt eliminating function, automatic cleaning-type high pressure fine filter that filtering accuracy reaches 0.1 ~ 0.3mm is particularly important.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of and can be installed on the outlet of power plant main feed system condensate pump, high workload pressure can be born, possess automatically clean dirt eliminating function, automatic cleaning-type high pressure fine filter that filtering accuracy reaches 0.1 ~ 0.3mm.
The purpose of this utility model is achieved in that
A kind of cleaning-type high pressure fine filter automatically, it comprises housing, the inside of housing is provided with web-roll core, the inside of web-roll core is provided with the blowdown funnel of lateral openings, blow-off line is provided with in housing, the upper semisection of blow-off line is positioned on the central shaft of housing, the lower semisection of blow-off line is communicated to downwards outside housing, blowdown funnel is communicated with the upper semisection of blow-off line, the top of housing is provided with motor, motor is connected with the upper semisection of blow-off line by the locating and detecting device below it and transmission device, and housing is also provided with differential pressure measuring installation.
Preferred as one, described web-roll core is cylindrical, described web-roll core comprises support frame and filter assemblies, described support frame comprises top top board, bottom ring flat-plate, middle part reinforcing ring and is vertically arranged in the connecting partition of inwall, web-roll core is along the circumferential direction divided into some lattices by connecting partition, form separate sewage backwash chamber, the filter assemblies of described web-roll core comprises medial support orifice plate, intermediate layer fine filtering web plate and outside and fixes orifice plate.
Preferred as one, the inner side of described connecting partition is provided with adjustable sealing strip.
Compared with prior art, the beneficial effects of the utility model are:
The utility model automatic cleaning-type high pressure fine filter has possessed automatic cleaning dirt eliminating function, normally runs without the need to manual intervention, no longer needs human at periodic intervals to clean filter screen.The filtering accuracy of filter reaches 0.1 ~ 0.3mm, fully meets the service requirement of power plant's main feed system.Owing to adopting the special steel plate hole that knits a net to replace conventional braided steel wire screen cloth, the web-roll core of filter has enough intensity, can long-term stable operation, indeformable, does not destroy.Design for filtration elements pressure-bearing can reach more than 3.6MPa, is applicable to the place that the outlet of power plant main feed system condensate pump and other similar media operation pressure reach mesohigh grade.The backwash efficiency of filter is high, and clean-up capability is strong, and the cleanliness factor of web-roll core after sewage backwash can reach more than 95%.Therefore this automatic cleaning-type high pressure fine filter have can be installed on the outlet of power plant main feed system condensate pump, high workload pressure can be born, possess automatically clean dirt eliminating function, advantage that filtering accuracy reaches 0.1 ~ 0.3mm.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model automatic cleaning-type high pressure fine filter.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the schematic diagram that the utility model automatic cleaning-type high pressure fine filter is applied to power plant's work system
Wherein:
Housing 1, blow-off line 2, web-roll core 3, blowdown funnel 4, motor 5, locating and detecting device 6, transmission device 7, differential pressure measuring installation 8, PLC control cabinet 9, outside blowoff line 10, manual blowdown valve 11, electric blowdown valve door 12, restricting orifice 13, the pipeline 14 that discharges water, Draw off valve 15, gas exhaust piping 16, drain tap 17.
Detailed description of the invention
See Fig. 1 ~ Fig. 3, the one that the utility model relates to automatic cleaning-type high pressure fine filter, it comprises housing 1, the inside of housing 1 is provided with web-roll core 3, the inside of web-roll core 3 is provided with the blowdown funnel 4 of lateral openings, blow-off line 2 is provided with in housing 1, the upper semisection of blow-off line 2 is positioned on the central shaft of housing 1, the lower semisection of blow-off line 2 is communicated to outside housing 1 downwards, blowdown funnel 4 is communicated with the upper semisection of blow-off line 2, the top of housing 1 is provided with motor 5, motor 5 is connected with the upper semisection of blow-off line 2 by the locating and detecting device 6 below it and transmission device 7, the upper semisection of blow-off line 2 is driven by motor 5 and can rotate thus drive blowdown funnel 4 to rotate, housing 1 is also provided with the differential pressure measuring installation 8 for monitoring Pressure Drop before and after web-roll core.
Described web-roll core 3 is cylindrical, and described web-roll core 3 comprises support frame and filter assemblies.
The support frame of described web-roll core 3 comprises top top board, bottom ring flat-plate, middle part reinforcing ring and is vertically arranged in the connecting partition of inwall.Web-roll core is along the circumferential direction divided into some lattices by connecting partition, forms separate sewage backwash chamber.
The inner side of described connecting partition is provided with adjustable sealing strip, thus ensures that the butt seam between blowdown funnel is less than 2mm.
The filter assemblies of described web-roll core 3 comprises medial support orifice plate, intermediate layer fine filtering web plate and outside and fixes orifice plate, and fine filtering web plate is clipped in medial support orifice plate and outside is fixed between orifice plate, is subject to secure support and fixes.Fine filtering web plate adopts on corrosion resistant plate and processes minute aperture making, and aperture 0.1 ~ 0.3mm, thickness of slab 0.1 ~ 0.3mm, the ratio of thickness of slab and orifice plate reaches 1:1, improves the intensity of web plate.Whole filter assemblies can long-term stable operation, indeformable, do not destroy.
Described web-roll core 3 is fixed with housing 1, web-roll core 3 inside is provided with the blowdown funnel 4 of rotation, can under the condition of not termination of pumping or not guard filter, the online impurity removed web-roll core surface filtration and get off, no longer need human at periodic intervals to clean web-roll core, ensure that web-roll core runs for a long time in the cleaning condition.
Blowdown funnel 4, in box structure, is welded on the central hollow pipe (upper semisection of blow-off line 2) that can rotate.The size of a size and web-roll core lattice of blowdown funnel is identical, and during blowdown, stepping rotates, and aims at each lattice of web-roll core successively, single-frame carries out cleaning blowdown.
Described housing 1 adopts vertical structure, housing 1 is provided with water inlet and delivery port, and the top of housing is provided with openable cover plate.When filter breaks down, cover plate can be opened easily, inspection and maintenance is carried out to the web-roll core, blowdown funnel, transmission device etc. of enclosure interior;
Described housing adopts high strength alloy steel to make, and selects proper wall thickness, and design pressure-bearing can reach more than 3.6MPa.
Described housing is provided with the device of differential pressure before and after monitoring web-roll core, differential pressure measuring installation comprises differential pressure transmitter (or differential pressure switch), the front Pressure gauge of net, net rear Pressure gauge and instrument valve etc.
When this automatic cleaning-type high pressure fine filter is used in power plant's work system, be also configured with the manual blowdown valve 11, the pipeline 14 that discharges water, Draw off valve 15, gas exhaust piping 16, drain tap 17 etc. of the PLC control cabinet 9 of operation control, outside blowoff line 10, restricting orifice 13, electric blowdown valve door 12, maintenance isolation.
Described outside blowoff line 10 is provided with restricting orifice 13, and the size be convenient to by adjusting orifice plate guarantees the water yield needed for sewage backwash, avoids the water yield excessive or too small.
PLC control cabinet 9 adopts PLC to control to the automatic operation realizing filter as main frame.Automatically the differential pressure that operates to of filter is automatically cleaned and is jointly controlled with timing automatic cleaning: when before and after web-roll core, differential pressure reaches backwash setting value, and PLC starts blowdown funnel and rotates blowdown one and enclose; When timing reaches timing cycle, even if differential pressure does not reach backwash setting value yet before and after web-roll core, PLC still starts blowdown funnel and rotates blowdown one circle.
The automatic cleaning process of this automatic cleaning-type high pressure fine filter is as follows: when before and after web-roll core, differential pressure reaches automatic backwash setting value, or during the arrival of timing backwashing period, PLC starts automatic backflushing washing procedure: open electric blowdown valve, then rotated by the stepping of position monitoring and control device control of sewage disposal bucket, make blowdown funnel aim at each lattice of web-roll core successively, fully set up back flushing differential pressure, form high strength current, efficient backwash is carried out to wire side, thoroughly removes wire side impurity; When blowdown funnel rotate a circle, cleaned all web-roll core lattices after automatically stop, then close electric blowdown valve, an automatic cleaning process terminates, and waits for operation triggering command next time.
Claims (3)
1. an automatic cleaning-type high pressure fine filter, it comprises housing (1), it is characterized in that the inside of housing (1) is provided with web-roll core (3), the inside of web-roll core (3) is provided with the blowdown funnel (4) of lateral openings, blow-off line (2) is provided with in housing (1), the upper semisection of blow-off line (2) is positioned on the central shaft of housing (1), the lower semisection of blow-off line (2) is communicated to housing (1) downwards outward, blowdown funnel (4) is communicated with the upper semisection of blow-off line (2), the top of housing (1) is provided with motor (5), motor (5) is connected with the upper semisection of blow-off line (2) by the locating and detecting device (6) below it and transmission device (7), housing (1) is also provided with differential pressure measuring installation (8).
2. one according to claim 1 automatic cleaning-type high pressure fine filter, it is characterized in that described web-roll core (3) is cylindrical, described web-roll core (3) comprises support frame and filter assemblies, described support frame comprises top top board, bottom ring flat-plate, middle part reinforcing ring and is vertically arranged in the connecting partition of inwall, web-roll core is along the circumferential direction divided into some lattices by connecting partition, form separate sewage backwash chamber, the filter assemblies of described web-roll core (3) comprises medial support orifice plate, intermediate layer fine filtering web plate and outside and fixes orifice plate.
3. one according to claim 2 automatic cleaning-type high pressure fine filter, is characterized in that the inner side of described connecting partition is provided with adjustable sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761021.0U CN204337870U (en) | 2014-12-08 | 2014-12-08 | Automatic cleaning-type high pressure fine filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761021.0U CN204337870U (en) | 2014-12-08 | 2014-12-08 | Automatic cleaning-type high pressure fine filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204337870U true CN204337870U (en) | 2015-05-20 |
Family
ID=53221174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420761021.0U Expired - Fee Related CN204337870U (en) | 2014-12-08 | 2014-12-08 | Automatic cleaning-type high pressure fine filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204337870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508615A (en) * | 2016-01-27 | 2016-04-20 | 江苏电力装备有限公司 | Elastic sealing device for sewage discharging bucket of nuclear-grade high-precision electric filter |
| CN108721968A (en) * | 2018-08-01 | 2018-11-02 | 西安西热节能技术有限公司 | A kind of machinery waterpower economic benefits and social benefits backwash secondary filter |
-
2014
- 2014-12-08 CN CN201420761021.0U patent/CN204337870U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508615A (en) * | 2016-01-27 | 2016-04-20 | 江苏电力装备有限公司 | Elastic sealing device for sewage discharging bucket of nuclear-grade high-precision electric filter |
| CN105508615B (en) * | 2016-01-27 | 2018-01-23 | 江苏电力装备有限公司 | Core level high-precision electric filter blowdown funnel elastic sealing device |
| CN108721968A (en) * | 2018-08-01 | 2018-11-02 | 西安西热节能技术有限公司 | A kind of machinery waterpower economic benefits and social benefits backwash secondary filter |
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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: 20150520 Termination date: 20181208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |