CN2500369Y - Drain blocking drum rotary back flushing circulating cooling water automatic filtering net - Google Patents
Drain blocking drum rotary back flushing circulating cooling water automatic filtering net Download PDFInfo
- Publication number
- CN2500369Y CN2500369Y CN 01262932 CN01262932U CN2500369Y CN 2500369 Y CN2500369 Y CN 2500369Y CN 01262932 CN01262932 CN 01262932 CN 01262932 U CN01262932 U CN 01262932U CN 2500369 Y CN2500369 Y CN 2500369Y
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- China
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- web
- roll core
- cooling water
- blowdown
- hollow shaft
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- Expired - Lifetime
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Abstract
The utility model relates to a rotary backwash type circulating cooling water automatic filter screen for fouling discharge box, which is used in all secondary filter screens and industrial filters for circulating cooling water. A screen core (5) is divided into equal frames along the circumference by a plurality of radial partition plates (14) and fixed on the outer shell (1). A hollow shaft (9) is positioned inside the screen core (5) and is communicated with the fouling discharge box (8) for rotating. The opening of the fouling discharge box (8) is equal to the size of each frame in the screen core (5), with the gap no more than 2mm from the partition plate (14) edge. A position test device (2) fixed on a transmission device (4) of the hollow shaft (9) can control the automatic stepping rotation of the fouling discharge box (8) to aim at each frame of the screen core (5) in turn, and realize the automatic partition intensified backwash of the screen core (5) gradually. The cleanness coefficient of the screen can be more than 95 percent, with less water resistance in working condition, high filter precision and economic and steady operation for a long term.
Description
Technical field
The utility model relates to the stifled case rotation of a kind of blowdown backwash type recirculated cooling water from electric filter, and it can be used as all kinds of recirculated cooling water secondary filters and industrial water filter.
Background technology
The recirculated cooling water filter screen is that all kinds of water quality class heat exchangers filter recirculated cooling water in the industries such as electric power, metallurgy, oil, chemical industry, all kinds of foreign material such as the pasture and water in the removing recirculated cooling water, clam shell, plastic sheeting, soft fibre avoid heat exchanger to stop up necessary equipment.Use more a kind of recirculated cooling water filter screen at present, its web-roll core rotates in the enclosure, and the chassis of web-roll core and shell must have certain slit, and the stifled case of blowdown is fixed, and its wiper contacts with the wire side of rotation to remove the foreign material on the wire side.But, owing to exist slit and this slit between web-roll core chassis and the shell along with the time growth that puts into operation also can continue to increase.During with this strainer filtering recirculated cooling water, the part recirculated cooling water filters directly to go over along this slot leakage without wire side, produces short circuit phenomenon, and the foreign material in the recirculated water fail to remove, and have had a strong impact on the drainage precision.In addition; the hard that rotation is adhered on the wire side revolves and scrapes among the slit than the be fixed listrium in opposite directions of the stifled case of blowdown of bigger material; can't enter in the cavity of the stifled case of blowdown; soft fibre shape foreign material then can twine alluvial on the wiper of the stifled case of blowdown; these foreign material not only can't be removed smoothly by the blowdown tank box cavity, also can cause rotation web-roll core stall and even are manually removed contamination, keep in repair by forced-stopping machine.In addition, overload fault easily takes place in the drive mechanism heaviness that the web-roll core rotation is required, and the equipment operational reliability is poor.
Summary of the invention
The purpose of this utility model is, provide that a kind of backwash effect is good, drainage precision height, operation water resistance are little, can be for a long time voluntarily the blowdown tank of stable operation rotation backwash type recirculated cooling water from electric filter.
Realize the technical scheme of the utility model purpose: the stifled case rotation of a kind of blowdown backwash type recirculated cooling water is from electric filter, it has shell, in web-roll core is arranged, blow-off pipe, case is blocked up in blowdown, water inlet is arranged on the shell, delivery port, the blow-off pipe outlet, the web-roll core inboard has web-roll core is divided into the polylith dividing plate radially that equates lattice, web-roll core chassis and shell are fixed, hollow shaft is arranged in the web-roll core, transmission device is equipped with in the hollow shaft upper end, the lower end is communicated with the blow-off pipe that the blowdown motor-driven valve is housed, the centre is the stifled case of blowdown that is communicated with and rotates with hollow shaft, its opening is towards the wire side of web-roll core, each lattice size in openings of sizes and the web-roll core is identical, and the interval≤2mm of edge of opening and separator edge is in web-roll core, on the shell in the outside external differential pressure transporting device is housed.
Above-mentioned recirculated cooling water is from electric filter, and the electric device that the transmission device direct connection is external is equipped with the external position detecting device of posting a letter and coil in the band position on its power transmission shaft, and the hermetically-sealed construction of transmission device is the composite construction of labyrinth and filler.
Above-mentioned recirculated cooling water is from electric filter, and the wire side of web-roll core is spherical, taper type, perhaps columniform surface of revolution.
Above-mentioned recirculated cooling water is from electric filter, and its electric device, differential pressure transporting device and blowdown motor-driven valve adopt the PLC Programmable Logic Controller to control its automatic operation as main control computer.
Technique effect of the present utility model: radially dividing plate is along circumferentially being divided into equal lattice by polylith for web-roll core 1. of the present utility model, and the openings of sizes of case and identical and the two the marginal gap≤2mm of lattice in the web-roll core are blocked up in blowdown.In addition, case is blocked up in the blowdown that communicates with hollow shaft, power transmission shaft by external electric device drive transmission, make the stifled case rotation of blowdown, whenever a lattice of the opening of the stifled case of blowdown and web-roll core on time, the position that is fixed on the position detecting device on the power transmission shaft dish of posting a letter sends signal immediately, and the control electric device automatically locks, and guarantees that the stifled case of blowdown realizes stepping rotation and accurate location.Like this, can fully set up the backwash differential pressure of lattice wire side, guarantee to enter smoothly attached to all kinds of foreign material on the wire side inner chamber of the stifled case of blowdown, realization subregion reinforcement backwash is removed contamination, backwash efficient height, and the filter screen clean-up capability is strong, and cleanliness factor can reach more than 95%.2. web-roll core and shell are fixed, and the wire side both sides all do not exist foreign material to bore the slit of leaking, and long-time running can not change yet, and guarantees that the filtering accuracy of recirculated cooling water reaches requirement.3. compare with the rotation web-roll core, the stifled case of rotation blowdown is driven by external electric device from heavy and light, and the structure that web-roll core is rotated in its rotation is light and handy, and running is reliable.Web-roll core is fixing has also avoided the phenomenon of being forced to stop transport because of filter screen that the web-roll core rotation causes the stifled card of foreign material to be caused.In addition, transmission device adopts the compound sealing structure of labyrinth and filler, and its sealing is durable, reliable, failure-free operation for a long time.When 4. using the utility model, its electric device, differential pressure transporting device and blowdown motor-driven valve adopt the PLC Programmable Logic Controller to control its operation as main control computer, can realize automatic running, guarantee that web-roll core is in the low water drag operation for a long time, has improved the heat exchange efficiency of heat exchanger.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model, and the wire side of its web-roll core is spherical surface of revolution;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is an another kind of structural representation of the present utility model, and the wire side of its web-roll core is cylindrical surface of revolution;
Fig. 4 is the B-B cutaway view of Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described in detail.
Shown in Fig. 1～4, the stifled case rotation of the utility model blowdown backwash type recirculated cooling water is from electric filter, it has shell 1, in fixedly web-roll core 5 is arranged, blow-off pipe 7, case 8 is blocked up in blowdown, water inlet 12 is arranged on the shell 1, delivery port 13, blow-off pipe 7 outlets 11, web-roll core 5 inboards have web-roll core 5 along circumferentially being divided into the polylith dividing plate 14 radially that equates lattice, web-roll core 5 chassis and shell 1 are fixing, hollow shaft 9 is arranged in the web-roll core 5, transmission device 4 is equipped with in its upper end, the lower end is communicated with the blow-off pipe 7 that blowdown motor-driven valve 10 is housed, the centre is to be communicated with and the stifled case 8 of blowdown of rotation with hollow shaft 9, and its opening is towards the wire side of web-roll core 5, and interior each the lattice size of openings of sizes and web-roll core 5 is identical, interval≤the 2mm at edge of opening and dividing plate 14 edges is in web-roll core 5, on the shell 1 in the outside external differential pressure transporting device 6 is housed.
Recirculated cooling water of the present utility model is from electric filter, and the electric device 3 that transmission device 4 direct connections are external is equipped with the external position detecting device of posting a letter and coil in the band position 2 on its power transmission shaft, and the composite construction of labyrinth seal and filler is adopted in the sealing of transmission device 4.Can guarantee so accurately to locate, realize subregion reinforcement backwash, improve backwash efficient by the stifled case 8 steppings rotation of the blowdown of electric device driving and with the lattice in the web-roll core 5.In addition, the good sealing effect of transmission device 4 makes that filter screen can operation steady in a long-term.
Recirculated cooling water of the present utility model is from electric filter, and the wire side of web-roll core 5 is spherical, taper type, perhaps columniform surface of revolution.Can select according to actual needs for the user.
During actual the use, recirculated cooling water of the present utility model is from the blowdown motor-driven valve 10 of electric device 3, position detecting device 2, differential pressure transporting device 6 and the blow-off pipe 7 of electric filter, adopt the PLC Programmable Logic Controller as its operation of host computer control, realize automation control.Recirculated cooling water enters from water inlet 12, flow through web-roll core 5 wire side after filtering, flow out from delivery port 13, under the control of program control device, the blowdown motor-driven valve 10 of blow-off pipe 7 is opened, the stifled case 8 of the blowdown that is communicated with hollow shaft 9 in the web-roll core 5, when it aims at lattice of web-roll core 5 successively, under the control of the detection of the position detecting device 2 on its transmission device 4 and PLC, automatically stepping rotation utilizes the differential pressure between recirculated cooling water and the blowoff line end, is controlled by PLC through differential pressure transporting device 6, wire side is implemented to strengthen backwash remove contamination, the foreign material in the recirculated cooling water can enter stifled case 8 inner chambers of blowdown smoothly and discharge by the blow-off pipe 7 that is communicated with it.The wire side cleanliness factor can reach more than 95%.
The utility model recirculated cooling water is adapted at from electric filter being used as recirculated cooling water secondary filter and industrial water filter in the heat-exchange system of industries such as electric power, metallurgy, oil, chemical industry.
Claims (3)
1, the stifled case rotation of a kind of blowdown backwash type recirculated cooling water is from electric filter, it has shell (1), in web-roll core (5) is arranged, blow-off pipe (7), case (8) is blocked up in blowdown, water inlet (12) is arranged on the shell (1), delivery port (13), blow-off pipe (7) outlet (11), it is characterized in that, web-roll core (5) inboard has web-roll core (5) along circumferentially being divided into the polylith dividing plate (14) radially that equates lattice, web-roll core (5) chassis and shell (1) are fixing, hollow shaft (9) is arranged in the web-roll core (5), transmission device (4) is equipped with in hollow shaft (9) upper end, the lower end is communicated with the blow-off pipe that blowdown motor-driven valve (10) are housed (7), the centre is the stifled case (8) of blowdown that is communicated with and rotates with hollow shaft (9), its opening is towards the wire side of web-roll core (5), each lattice size in openings of sizes and the web-roll core (5) is identical, interval≤the 2mm at edge of opening and dividing plate (14) edge is in web-roll core (5), on the shell (1) in the outside external differential pressure transporting device (6) is housed.
2, recirculated cooling water according to claim 1 is from electric filter, it is characterized in that, the electric device (3) that transmission device (4) direct connection is external, the external position detecting device of posting a letter and coil in the band position (2) is housed on its power transmission shaft, and the hermetically-sealed construction of transmission device (4) is the composite construction of labyrinth and filler.
3, recirculated cooling water according to claim 1 and 2 is characterized in that from electric filter, and the wire side of web-roll core (5) is spherical, taper type, perhaps columniform surface of revolution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262932 CN2500369Y (en) | 2001-09-21 | 2001-09-21 | Drain blocking drum rotary back flushing circulating cooling water automatic filtering net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262932 CN2500369Y (en) | 2001-09-21 | 2001-09-21 | Drain blocking drum rotary back flushing circulating cooling water automatic filtering net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2500369Y true CN2500369Y (en) | 2002-07-17 |
Family
ID=33670606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01262932 Expired - Lifetime CN2500369Y (en) | 2001-09-21 | 2001-09-21 | Drain blocking drum rotary back flushing circulating cooling water automatic filtering net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2500369Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078718A (en) * | 2010-12-14 | 2011-06-01 | 北京市蓝爱迪电力技术有限公司 | Automatic drainage device for use in circulating water filtration |
| CN103028279A (en) * | 2011-09-30 | 2013-04-10 | 江苏神通阀门股份有限公司 | Shellfish trapping device |
| CN103328064A (en) * | 2011-02-04 | 2013-09-25 | 博尔和柯基滤清器有限责任公司 | Reversible-flow filter with scavenging device |
| CN105521639A (en) * | 2014-10-24 | 2016-04-27 | 江苏神通阀门股份有限公司 | Backwashing device of shellfish catcher |
-
2001
- 2001-09-21 CN CN 01262932 patent/CN2500369Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078718A (en) * | 2010-12-14 | 2011-06-01 | 北京市蓝爱迪电力技术有限公司 | Automatic drainage device for use in circulating water filtration |
| CN103328064A (en) * | 2011-02-04 | 2013-09-25 | 博尔和柯基滤清器有限责任公司 | Reversible-flow filter with scavenging device |
| CN103328064B (en) * | 2011-02-04 | 2015-11-25 | 博尔和柯基滤清器有限责任公司 | There is the reversible flow filter of purifier |
| CN103028279A (en) * | 2011-09-30 | 2013-04-10 | 江苏神通阀门股份有限公司 | Shellfish trapping device |
| CN105521639A (en) * | 2014-10-24 | 2016-04-27 | 江苏神通阀门股份有限公司 | Backwashing device of shellfish catcher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110921 Granted publication date: 20020717 |