CN2877830Y - water filter - Google Patents

water filter Download PDF

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Publication number
CN2877830Y
CN2877830Y CN 200520035499 CN200520035499U CN2877830Y CN 2877830 Y CN2877830 Y CN 2877830Y CN 200520035499 CN200520035499 CN 200520035499 CN 200520035499 U CN200520035499 U CN 200520035499U CN 2877830 Y CN2877830 Y CN 2877830Y
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CN
China
Prior art keywords
water
pipe
filter
water filter
outlet
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
Application number
CN 200520035499
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Chinese (zh)
Inventor
余前山
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Individual
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Individual
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Filing date
Publication date
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Priority to CN 200520035499 priority Critical patent/CN2877830Y/en
Application granted granted Critical
Publication of CN2877830Y publication Critical patent/CN2877830Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a power station technique supplies water-cooling, sealed water purifier that supplies water, it includes inlet tube, box, filter bowl (net), dirty case, blow off pipe, floater export, outlet pipe and establish the outlet valve on the outlet pipe, it has thoroughly solved current water purifier after a period of use, and a large amount of rubbish, silt and aquatic animal block up filter bowl (net) and influence the problem that the technique supplied water. The utility model discloses the structure to current product changes not greatly, has nevertheless produced unexpected result of use, has very strong suitability in new product development, production and existing product transformation.

Description

Water filter
(1) technical field
The utility model relates to the water filter of a kind of power station technical water supply-cooling, sealing water supply.
(2) background technology
Full-automatic water filter is all adopted in the filtration of power station technical water supply at present, and two and above water filter parallel running are arranged, wherein a maintenance or the technical water supply that does not all influence unit out of service.Water filter is automatic pollution discharge in running, and its structure generally is made up of casing, water inlet pipe, filter element, blowdown scraper plate, blowdown pipe valve, outlet pipe etc., and blowoff valve adopts electrically operated valve, can be manual, also can regularly start by the time relay.The delivery port of water filter is directly supplied with unit or is supplied with unit through force (forcing) pump pressurization back.
Water filter is in running, water enters from the water inlet pipe of water filter, and by the filter bowl or the strainer filtering of water filter inside, aquatic organism in the water and rubbish are just stayed among the filter bowl (net), the foreign material in the filter screen are discharged in the blowoff valve timing of water filter or opening of not timing.But in the actual running, the power station of on the Changjiang river and tributary of Yangtze, building, water filter is often by a large amount of aquatic organisms such as obstructions such as freshwater mussel, water spiral shell, sewage draining exit can not be discharged these aquatic organisms and rubbish, and freshwater mussel, water spiral shell etc. are attached on the mesh of filter screen and breed in the clear water chamber and grow on the contrary.In the not oversize time, filter bowl (net) mesh is blocked, causes the unit chilled(cooling) water supply (CWS) not go up, and brings very big potential safety hazard to generating set, sometimes generating set because chilled(cooling) water supply (CWS) is not gone up by forced-stopping machine; In the power station of the Yellow River middle and lower reaches, because the river silt content is big, water filter inside is often stopped up by silt.Existing water filter has certain blowdown effect to less silt and floating refuse, but to the not tangible effect of the blowdown of freshwater mussel and a large amount of silts; Large-scale freshwater mussel grows in filter bowl (net), not only stops up mesh, and rubbish also hangs on the freshwater mussel, and rubbish will be cumulative, causes vicious circle, until coming water can not pass through water filter, causes generating set technical water supply deficiency.
(3) utility model content
The purpose of this utility model is to provide a kind of can thoroughly solve existing water filter after use after a while, and a large amount of rubbish, silt and aquatic animal are stopped up filter bowl (net) and the water filter of influence technique water supply.
The realization the technical solution of the utility model is: it comprises water inlet pipe, casing, place filter bowl in the casing, open sludge collecting box, the blow-off pipe that is connected to sludge collecting box, floating thing outlet, outlet pipe that joins at the sewage draining exit on the filter bowl, with sewage draining exit and the outlet valve that is provided with on outlet pipe.
Preferably, outlet valve and blowoff valve opposite state link-and be that outlet valve is opened, then blowoff valve closes, and outlet valve closes, and then blowoff valve leaves, and action simultaneously.
The interlock of the opposite state of outlet valve and blowoff valve can have multiple mode, can use the FPGA cyclelog as two valves, also available mechanical system etc.
In the application, can not design blowoff valve, blow-off pipe is in normally open, and to not influence of dirt eliminating function, but blow-off pipe often leaves, and the water part after the filtration can flow out from blow-off pipe, cause water resource waste; Sludge collecting box also can omit, and sewage draining exit directly is connected on the blow-off pipe, and they all are the equivalent structures of realizing the utility model purpose.
Existing water filter can not reach thoroughly blowdown automatically, can't solve the obstruction of freshwater mussel with a large amount of silts, often need manually remove contamination, and water supply line normally is buried in the cement dam, the quite difficulty of manually removing contamination, waste great amount of manpower and material resources.By analyzing and test, find that the shortcoming that existing water filter can not normally move mainly is on the water filter operation principle.Existing water filter is when operation, provide the technology water to generator on one side, on one side drainage is again regularly or the blowdown of not timing, during blowdown, the hydraulic pressure major part of water inlet releases from bigbore outlet pipe, filter screen and blow-off pipe between pressure reduction very little, the freshwater mussel that this hydraulic pressure can't be stronger with absorption affinity, water spiral shell and a large amount of silt are drained, and cause the obstruction of water filter.If with bigger press water water filter inside is washed and blowdown, freshwater mussel, water spiral shell, silt and rubbish will be gone out from sewage draining exit, unlikely obstruction water filter.Experiment showed, that hydraulic pressure reaches that 0.8Mpa is above just to satisfy the demand.For the water source of the water filter in power station, fetching water from tail water in a part of power station, gets the water filter import with force (forcing) pump, the power station import is taken from another part power station, all more than 0.8Mpa, if carry out blowdown with these press waters, removing contamination of water filter inside is guaranteed to hydraulic pressure.Design philosophy of the present utility model is: when blowdown, to between filter bowl (net) and blow-off pipe, provide enough pressure differentials, its technical scheme is: by set out water valve on outlet pipe, during blowdown, close outlet valve, intake pressure all is added between filter bowl (net) and the blow-off pipe, just can satisfy the pressure requirement of blowdown; Two and above water filter paired running are all designed in the power station simultaneously, when a water filter water outlet valve is closed, are supplied water by other water filter, can not influence the water supply of equipment, promptly reach designing requirement.
Under such scheme, during blowdown, close flowing water Valve, to between filter bowl (net) and blow-off pipe, provide enough pressure differentials, freshwater mussel, water spiral shell, silt and rubbish etc. are gone out from sewage draining exit, thereby realized thorough blowdown, satisfy the purpose of using needs, and have simultaneously and do not establish the blowdown scraper plate, reduced the deceleration device of blowdown scraper plate, saved the effect of water filter production cost.
(4) description of drawings
Fig. 1 looks cross-sectional schematic for the utility model frame for movement master;
Fig. 2 is the utility model control apparatus circuit diagram.
(5) specific embodiment
Be described further below in conjunction with accompanying drawing, but be not limited only to this.
As shown in Figure 1, 2, the utility model comprises water inlet pipe 1, casing 3, place filter bowl 2 in the casing 3, open sewage draining exit 8 on filter bowl 2, join with sewage draining exit 8 sludge collecting box 9, the blow-off pipe 5 that is connected to sludge collecting box 9, floating thing outlet 10, outlet pipe 6, on outlet pipe 6, be provided with outlet valve 7, on blow-off pipe 5, be provided with blowoff valve 4, outlet valve 7 and the interlock of blowoff valve 4 opposite states, its opposite state interlock mode adopt the control motor M 3 of outlet valve 7 and control motor M 2 phase sequence reversal connection by same power supply power supply of blowoff valve 4; Each device annexation such as Fig. 2, title is as follows:
M1-water filter floating thing outlet motor-driven valve motor
M2-water filter blowdown motor-driven valve motor
M3-water filter delivery port motor-driven valve motor
KM1-water filter floating thing outlet motor-driven valve is opened contactor
KM2-water filter blowdown motor-driven valve cuts out contactor
KM3-water filter blowdown motor-driven valve is opened contactor
Water filter delivery port motor-driven valve cuts out contactor
KM4-water filter blowdown motor-driven valve cuts out contactor
Water filter delivery port motor-driven valve is opened contactor
D-motor-driven valve control case
The QS1-power switch
QS2-blowdown motor-driven valve and delivery port motor-driven valve power switch
The fuse of FU-logic programming controller
L-FPGA cyclelog (PLC)
Water filter carries out blowdown automatically by the time of setting when normal operation, the time of blowdown is set by logic programming controller (PLC), generally set greater than 5 minutes, be (can set according to on-site actual situations) about 10 hours the blanking time of blowdown, just freshwater mussel and silt can be drained.

Claims (2)

1, a kind of water filter, comprise water inlet pipe (1), casing (3), place filter bowl (2) in the casing (3), drive the sludge collecting box (9), the blow-off pipe (5) that is connected to sludge collecting box (9) that join at the sewage draining exit (8) on the filter bowl (2), with sewage draining exit (8), on blow-off pipe (5), be provided with blowoff valve (4), floating thing outlet (10), outlet pipe (6), it is characterized in that: on outlet pipe (6), be provided with outlet valve (7).
2, water filter according to claim 1 is characterized in that: outlet valve (7) makes outlet valve (7) and blowoff valve (4) be in the opposite state linkage status with the control device of blowoff valve (4).
CN 200520035499 2005-09-15 2005-09-15 water filter Expired - Fee Related CN2877830Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520035499 CN2877830Y (en) 2005-09-15 2005-09-15 water filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520035499 CN2877830Y (en) 2005-09-15 2005-09-15 water filter

Publications (1)

Publication Number Publication Date
CN2877830Y true CN2877830Y (en) 2007-03-14

Family

ID=37860247

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520035499 Expired - Fee Related CN2877830Y (en) 2005-09-15 2005-09-15 water filter

Country Status (1)

Country Link
CN (1) CN2877830Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103201006A (en) * 2010-10-05 2013-07-10 埃尔比国际有限公司 A filter for liquids, in particular for electric valves of household appliances and the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103201006A (en) * 2010-10-05 2013-07-10 埃尔比国际有限公司 A filter for liquids, in particular for electric valves of household appliances and the like
CN103201006B (en) * 2010-10-05 2015-05-06 埃尔比国际有限公司 A filter for liquids, in particular for electric valves of household appliances and the like

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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