CN2440845Y - Reversal filter - Google Patents
Reversal filter Download PDFInfo
- Publication number
- CN2440845Y CN2440845Y CN 00250498 CN00250498U CN2440845Y CN 2440845 Y CN2440845 Y CN 2440845Y CN 00250498 CN00250498 CN 00250498 CN 00250498 U CN00250498 U CN 00250498U CN 2440845 Y CN2440845 Y CN 2440845Y
- Authority
- CN
- China
- Prior art keywords
- filter screen
- valve rod
- housing
- filter
- handle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a filter, belonging to the field of feedwater, and particularly relates to a filter can be used for back flushing of a core device, i.e. filter screen. The utility model can clear impurities adhering on the filter net cleanly under the condition of not detaching the filter. The utility model is composed of a casing, a top cover, a filter screen, a valve clack, a valve rod, a handle, a sealing ring, and a drain port. The utility model is characterized in that the casing is in an X shape, the top cover is arranged on the upper part of the casing, the drain port is arranged on the bottom part of the casing, the filter screen and the valve clack are arranged in the inner part of the casing; the filter screen is in a cylinder shape flanging outwards, a gap is arranged between the surface of the outer side of the filter screen and the inner side of the casing; the valve clack is arranged on one side of a water inlet of the filter screen, the valve clack is connected with the water inlet through the valve rod and the handle communicating with the top cover. When filtering, the valve clack is lifted by pulling the handle and the valve rod, medium enters the inner part of the filter screen from the water inlet of the filter screen and flows toward the outer side of the filter screen from the inner side of the filter screen after filtered, and impurity is trapped in the filter screen; when cleaning, the outlet of the filter is closed, while the drain port is opened, the handle is pressed, and the water inlet of the filter screen is closed by the valve clack, water enters the filter screen and the gap in the inner side of the casing through the flanging part, and the filter screen is back flushed from the outer side of the filter screen to the inner side of the filter screen, removing the adhesive material on the filter screen effectively and expelling the impurity through the drain port.
Description
The utility model belongs to a kind of water filtering device in feedwater field.
At present, strainer relatively commonly used on the market is in the inside of Y shape housing screen pack to be housed, and on housing sewage draining exit is housed, and the core apparatus filter screen is to be used to the water filtration device that stops that impurity passes through, and the effect of blowoff valve is that the impurity that will leach is discharged.Yet, the impurity component that contains in the water body is comparatively complicated, some are such as the impurity of floating material class in floccule, viscous mass and the water, be easy to stick on the filter screen and be difficult to come off, the impurity that it does not resemble solid granular can precipitate, and can discharge by sewage draining exit, so filter screen is blocked easily, influences the circulation efficiency of water body.
Main purpose of the present utility model is, overcome the shortcoming of prior art, provide a kind of can be to core apparatus---filter screen carries out the strainer of back flush, and it can be under the situation that strainer itself is dismantled, the contaminant removal that adheres on the filter screen is clean, improve filter efficiency.
The purpose of this utility model is achieved in that it is made up of housing, top cover, filter screen, flap, valve rod, handle, sealing ring and sewage draining exit.It is characterized in that housing is an X-shaped, a top cover is arranged at top, and a sewage draining exit is arranged at the bottom, and filter screen and flap are equipped with in inside; Filter screen is a cylindrical shape, and water inlet side direction flanging, its outward flange equate that with the housing internal diameter outer surface and housing inboard are gapped; Flap places filter screen water inlet one side, and is connected with handle by the valve rod with the top cover perforation; The sealing ring sealing is arranged between valve rod and the top cover, and top cover moves up and down relatively.During filtration work, sewage draining exit is closed, pull-up handle and valve rod rise flap, and medium enters its inside from the filter screen water inlet, flow out after filtering laterally from the filter screen inboard, and impurity is trapped within the filter screen; The too much impurity of deposition in filter screen, particularly cotton-shaped viscous mass adheres on filter screen when too much, can not dismantle filter screen and clean, during cleaning filter outlet be closed, open sewage draining exit simultaneously, press lower handle, this moment, flap was closed the filter screen water inlet, and current enter side clearance in filter screen and the housing through filter screen flange position, from inboard, filter screen lateral filter screen are carried out back flush, can effectively remove the attachment on the filter screen, impurity is discharged by sewage draining exit.
Pin is equipped with near handle one side in the valve rod upper end, in the top cover upper end locked groove is housed, and when backwash, valve rod can be pinned by lower handle.
Be connected by compressible spring between flap and valve rod, can make flap when closing the filter screen water inlet, adjust concentricity with filter screen automatically, guarantee filter screen is closed tightly.
Valve rod can side be contained on the housing, and is connected with flap, and handle is housed on valve rod, and seals with sealing ring between valve rod and housing, drives the flap rotation by rotary handle, plays switching function.
Filter screen can be corrosion resistant metal or nonmetals, and its shape can be polygon tubular.
The blanking cover and the housing of housing bottom flexibly connect, and sewage draining exit is arranged on the blanking cover, rotation blanking cover when blanking cover and housing shutoff, can adjust sewage draining exit towards, can be when mounted change the direction of sewage draining exit according to field condition, be convenient to on-the-spot the installation.
The utility model had both kept the characteristics of prior art, had increased the function of backwash again, have simple in structure, advantage such as result of use is obvious, be a kind of scope of application extensively, practical and easy backwash filter.
Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing 1 is the utility model backwash filter structure chart.
Accompanying drawing 2 is second kind of example structure figure of the utility model backwash filter.
Accompanying drawing 3 is second kind of example structure figure of the utility model backwash filter.
1. delivery ports in the drawings; 2. filter screen; 3. housing; 4. flap; 5. valve rod; 6. handle; 7. pin; 8. locked groove; 9. top cover; 10. sealing ring; 11. water inlet; 12. sewage draining exit; 13. blanking cover.
First kind of embodiment of backwash filter be as shown in Figure 1: by " X " shape housing (3) bottom welding sewage draining exit (12) that the steel pipe weldering is made, the two ends of housing (3) are welded with water inlet (11) and delivery port (1) respectively; In the housing (3), the cylindrical shape stainless steel filtering net (2) of a band flange is housed, the outward flange of filter screen (2) turnover equates that with housing (3) internal diameter certain interval is left in its outer surface and housing (3) inboard; A top cover (9) is equipped with on housing (3) top, and its central part inserts the valve rod (5) of a band handle (6), and a flap is equipped with in the lower end of valve rod, and flap (4) is just closed filter screen (2) water inlet during by lower handle (6); Rubber seal (10) sealing is arranged between valve rod (5) and the top cover (9), and valve rod (5) can slide up and down, and the water in the housing (3) is outwards spilt; One pin (7) is housed on the valve rod (5), and top cover (9) is gone up and valve rod (5) cooperation place is provided with a locked groove (8), valve rod (5) can be pinned after lower slider when pressing fixed handle (6) valve rod, can make filter screen (2) keep closing when filtering work.This backwash filter is loaded in the pipe network, and locates respectively to install a gate valve at its delivery port (1) and sewage draining exit (12).During water flowing filtration work, pull out valve rod (5) flap (4) is risen, water enters its inside from filter screen (2) water inlet, flows out after filtering laterally from filter screen (2) inboard, and impurity is trapped within the filter screen; During backwash, delivery port (1) gate valve is closed, open sewage draining exit (12) gate valve simultaneously, press lower handle (6), flap this moment (4) is closed filter screen (2) water inlet, and current are side clearance in filter screen flange position enters filter screen (2) and housing (1), from filter screen (2) inboard, lateral filter screen (2) is carried out back flush, can effectively remove the attachment on the filter screen, impurity is discharged by sewage draining exit.
Second kind of embodiment structure chart as shown in Figure 2 of backwash filter, its structure and embodiment one are roughly the same, difference is that valve rod (5) is that side is contained on the housing (1), and be connected with flap (4), handle (6) is housed on valve rod (5), and seals with sealing ring (10) between valve rod (5) and housing (3), drive flap (4) rotation by rotary handle (6), play switching function, its filter and the principle of backwash and
Embodiment one is identical.
The third embodiment structure chart as shown in Figure 3 of backwash filter, " X " shape housing (3) bottom of making by the steel pipe weldering, increasing by one can adjusted blanking cover (13), sewage draining exit (12) is arranged on the blanking cover (13), rotation blanking cover (13) when blanking cover (13) and housing (3) shutoff, adjust sewage draining exit (12) towards, can change the direction of sewage draining exit when mounted according to field condition, be convenient to on-the-spot the installation.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (6)
1, a kind of backwash filter, it is made up of housing, top cover, filter screen, flap, valve rod, handle, sealing ring and sewage draining exit.It is characterized in that housing is an X-shaped, a top cover is arranged at top, and a sewage draining exit is arranged at the bottom, and filter screen and flap are equipped with in inside; Filter screen is a cylindrical shape, and water inlet side direction flanging, its outward flange equate that with the housing internal diameter outer surface and housing inboard are gapped; Flap places filter screen water inlet one side, and is connected with handle by the valve rod with the top cover perforation; The sealing ring sealing is arranged between valve rod and the top cover.
2, backwash filter according to claim 1 is characterized in that close handle one side in described valve rod upper end is equipped with pin, is equipped with locked groove in the top cover upper end.
3, backwash filter according to claim 1 is characterized in that being connected by the compression spring between flap and valve rod.
4, backwash filter according to claim 1 is characterized in that valve rod can side be contained on the housing, and is connected with flap, handle is housed on valve rod, and seals with sealing ring between valve rod and housing.
5, backwash filter according to claim 1 is characterized in that filter screen can be corrosion resistant metal or nonmetals, and its shape can be polygon tubular.
6, backwash filter according to claim 1 is characterized in that blanking cover and housing bottom flexibly connect, and have sewage draining exit on the blanking cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250498 CN2440845Y (en) | 2000-09-11 | 2000-09-11 | Reversal filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250498 CN2440845Y (en) | 2000-09-11 | 2000-09-11 | Reversal filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440845Y true CN2440845Y (en) | 2001-08-01 |
Family
ID=33608663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00250498 Expired - Fee Related CN2440845Y (en) | 2000-09-11 | 2000-09-11 | Reversal filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440845Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007620A (en) * | 2012-12-06 | 2013-04-03 | 大连葆光节能空调设备厂 | Water pipe filter |
| CN110075589A (en) * | 2019-05-22 | 2019-08-02 | 浙江吉利控股集团有限公司 | A kind of cooling liquid filtering apparatus and vehicle for vehicle |
-
2000
- 2000-09-11 CN CN 00250498 patent/CN2440845Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007620A (en) * | 2012-12-06 | 2013-04-03 | 大连葆光节能空调设备厂 | Water pipe filter |
| CN110075589A (en) * | 2019-05-22 | 2019-08-02 | 浙江吉利控股集团有限公司 | A kind of cooling liquid filtering apparatus and vehicle for vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110812919A (en) | Backwashing device for sewage treatment equipment | |
| CN1843558B (en) | Backwash filter | |
| CN2440845Y (en) | Reversal filter | |
| CN2875557Y (en) | Back flushing filter | |
| CN201006357Y (en) | Real-time self-cleaning fluid filter | |
| CN112459179A (en) | Anti-blocking pipeline structure | |
| CN210237274U (en) | Miscellaneous device is strained to ocean hall pond | |
| CN213912585U (en) | Drainage filter equipment for water conservancy construction | |
| CN203694731U (en) | Automatic pipeline cleaning filter | |
| CN215886401U (en) | Special high-efficient sediment sludge discharging device of sewage treatment | |
| CN210645436U (en) | Filtering type hydraulic control valve | |
| CN115317973A (en) | Medical wastewater disinfection treatment facility that can waste material separation | |
| CN113426194A (en) | Novel full-automatic back-washing self-cleaning filter for filtering liquid | |
| CN209237505U (en) | A kind of industrial wastewater filter device | |
| CN202392147U (en) | Duplex filtering ball valve | |
| CN2821316Y (en) | Filter type ball valve | |
| CN215352294U (en) | Leading filter of water purification back flush | |
| CN214182158U (en) | Industrial PLC (programmable logic controller) controlled sewage treatment system | |
| CN216366860U (en) | Automatic washing type filter element | |
| CN217829122U (en) | Novel high-efficiency filter | |
| CN214037006U (en) | Multifunctional gate valve convenient for sewage discharge | |
| CN215719020U (en) | Engine oil cooler with impurity removal assembly | |
| CN219548829U (en) | Cleaning, separating and sand removing device for drilling fluid | |
| CN217188213U (en) | Self-cleaning water filter | |
| CN220345221U (en) | Automatic efficient filter for sewage discharge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |