CN203469636U - Double-ball combined switchable duplex filter - Google Patents
Double-ball combined switchable duplex filter Download PDFInfo
- Publication number
- CN203469636U CN203469636U CN201320579045.XU CN201320579045U CN203469636U CN 203469636 U CN203469636 U CN 203469636U CN 201320579045 U CN201320579045 U CN 201320579045U CN 203469636 U CN203469636 U CN 203469636U
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- balls
- ball
- filter
- filter chamber
- outlet
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Abstract
The utility model discloses a double-ball combined switchable duplex filter comprising a main shell, a left filter chamber and a right filter chamber, wherein a fluid inlet, a fluid outlet and a communicating pipeline are arranged in the main shell; both the left and the right filter chambers are provided with filter baskets therein; a sealing base for fixing four coaxial steel balls is arranged between the left filter chamber and the right filter chamber, and the two steel balls above are taken as two outlet balls which are matched with a lower outlet of the right filter chamber, and outfalls of the two outlet balls are matched with the fluid outlet; an operation handle is arranged above the main shell; and shafts and connecting blocks for rotating and connecting the four steel balls are arranged between the operation handle and the four steel balls. The double-ball combined switchable duplex filter, through combination of two relatively small ball valves, increases flux and switching area, and overcomes strength limit of a large-ball sealing base and a difficulty caused by excessive switching force, so that the filter is low in pressure loss and is smooth in flow.
Description
Technical field
The utility model relates to the changeable duplex strainer in a kind of piping filter, particularly two changeable duplex strainers of ball combined type.
Background technology
Ball valve is controlled the filter that changeable duplex strainer is a kind of advanced person, controls changeable duplex strainer compare with cone valve, simple in structure, and handover operation is convenient, and leakage rate is little, receives praises from customers.
As shown in Figure 1, changeable duplex strainer has two filter baskets, one of them work, and another is standby.The quantity of the foul in the filter basket of work acquires a certain degree, in the time of need to cleaning, and handle Rotate 180 degree, fluid can uninterruptedly be switched to another filter basket work, can to dirty filter basket, clean or safeguard subsequently, to next circulation, again switches.
At present, the reasons such as operational torque when can not bear the static pressure of excessive steel ball and switching due to seal receptacle (at present most optimum materials be polytetrafluoroethylene (PTFE)) is too large, the maximum specification of the product of this form is confined to nominal dimension DN100(4 inch), do not overcome intensity restriction and the excessive difficulty of switching power of large ball seal receptacle, therefore cannot produce nominal dimension DN150(6 inch) specification and above ball valve control changeable duplex strainer, make the through-flow of existing changeable duplex strainer and switch area too small, affect operating efficiency.
Utility model content
The purpose of this utility model is to provide two of a kind of use to combine compared with small ball in order to solve above-mentioned the deficiencies in the prior art, reach large through-flow and switching area, overcome intensity restriction and the excessive difficulty of switching power of large ball seal receptacle, thereby the area that meets all sections reaches the size of DN150 standard-required, and smooth-going excessive, make filter there is the very little pressure loss, and the two changeable duplex strainers of ball combined type smoothly that flow.
To achieve these goals, the changeable duplex strainer of two ball combined types that the utility model is designed, comprise main casing, He You filter chamber, left filter chamber, in main casing, be provided with fluid inlet, the pipeline of fluid issuing and connection, Zuo filter chamber is equipped with filter basket in He You filter chamber, between He You filter chamber, left filter chamber, be provided with teflon seal seat, on teflon seal seat, be provided with for switch fluids and control fluid issuing and four coaxial steel balls of fluid inlet, two, top steel ball is as the two balls of entrance, and the upper entrance of the inlet Yu You filter chamber of the two balls of entrance coordinates, two of bottoms steel ball is as the two balls of outlet in addition, and the lower part outlet of outlet Shuan Qiuyuyou filter chamber coordinates, the flow export of the two balls of outlet coordinates with fluid issuing simultaneously, and above main casing, be provided with the operating grip switching for two filter baskets, between one of them steel ball of the two balls of operating grip and entrance, be provided with turning cylinder, between one of them steel ball of another steel ball of the two balls of entrance and the two balls of outlet, be also provided with turning cylinder, between the two balls of entrance, be provided with coupling block simultaneously, between the two balls of outlet, be also provided with coupling block.
The changeable duplex strainer of two ball combined types that the utility model obtains, with two, compared with small ball, combine, reach large through-flow and switching area, overcome intensity restriction and the excessive difficulty of switching power of large ball seal receptacle, thereby the area that meets all sections reaches the size of DN150 standard-required, and smooth-going excessive, make filter there is the very little pressure loss, and it is smooth and easy to flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the front section view of the present embodiment;
Fig. 3 is the side sectional view of the present embodiment.
In figure: 2 ,You filter chambers 3, main casing 1 ,Zuo filter chamber, fluid inlet 4, fluid issuing 5, pipeline 6, filter basket 7, teflon seal seat 8, steel ball 9, the two ball 9-1 of entrance, the two ball 9-2 of outlet, inlet 10, flow export 11, operating grip 12, turning cylinder 13, coupling block 14, end cap 15.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment:
As Fig. 2, shown in Fig. 3, the changeable duplex strainer of two ball combined types that the present embodiment provides, comprise main casing 1, 2 He You filter chambers 3, left filter chamber, in main casing 1, be provided with fluid inlet 4, fluid issuing 5 and the pipeline 6 being communicated with, Zuo filter chamber is equipped with filter basket 7 in 2 He You filter chambers 3, between 2 He You filter chambers 3, left filter chamber, be provided with teflon seal seat 8, on teflon seal seat 8, be provided with for switch fluids and control fluid issuing 5 and four coaxial steel balls 9 of fluid inlet 4, two, top steel ball 9 is as the two ball 9-1 of entrance, and the upper entrance of the inlet 10Yu You filter chamber 3 of the two ball 9-1 of entrance coordinates, two of bottoms steel ball 9 is as the two ball 9-2 of outlet in addition, and the lower part outlet of the two Qiu9-2Yu You of outlet filter chamber 3 coordinates, the flow export 11 of the two ball 9-2 of outlet coordinates with fluid issuing 5 simultaneously, and above main casing 1, be provided with the operating grip 12 switching for two filter baskets 7, between one of them steel ball 9 of the two ball 9-1 of operating grip 12 and entrance, be provided with turning cylinder 13, between one of them steel ball 9 of another steel ball 9 of the two ball 9-1 of entrance and the two ball 9-2 of outlet, be provided with turning cylinder 13, between the two ball 9-1 of entrance, be provided with coupling block 14 simultaneously, between the two ball 9-2 of outlet, be also provided with coupling block 14.
The operation principle of this filter is such: fluid enters filter from fluid inlet 4, enter the two ball 9-1 of upper entrance, by the inlet 10 of the two ball 9-1 of entrance, arrive the top of right filter chamber 3, now by the filter basket 7 in right filter chamber 3, after convection cell filters, arrive the bottom of right filter chamber 3, foul in fluid is just trapped in filter basket 7 inside in right filter chamber 3, now fluid enters the two ball 9-2 of outlet again, by exporting the flow export 11 of two ball 9-2, fluid focuses on pipeline 6, and arrives fluid issuing 5 outflows.
If in the filter basket 7 in Dang You filter chamber 3, foul reaches some at work, when the Pressure Drop of filter of flowing through surpasses regulation, operating grip 12 can be rotated to 180 degree, the position of the steel ball 9 of upper and lower two Rotate 180 degree simultaneously now, cause the upper entrance of the inlet 10Yu Zuo filter chamber 2 of the two ball 9-1 of entrance to coordinate, the lower part outlet of the two Qiu9-2Yu Zuo of outlet filter chamber 2 coordinates in addition, now realize the filter basket 7 that fluid enters left filter chamber 2, the filter basket 7 that filter is switched to left filter chamber 2 carries out filtration operation, handoff procedure does not need to interrupt flowing and filtration operation of fluid.Subsequently, the filter basket 7 that can open the end cap 15,Dui You filter chamber 3 of filter chamber, the right cleans or safeguards, thereby realize left and right filter chamber, carries out in turn operation and cleaning.
Because the utility model is to adopt two based on DN100(4 inch) (diameter of ball is Φ 155mm in the present embodiment for the ball combination of ball valve, through-flow mouthful of diameter of phi 106mm), after superimposed, its flow area reaches DN150(6 inch) standard-required (diameter of phi 230 of ball, through-flow mouthful of diameter of phi 150).Its stressed DN100(4 inch that maintains of seal receptacle) specification is onesize, the DN150(6 inch of handover operation moment in intending thinking) ball reduces 50%, reaches acceptable degree.Thereby the range of application of ball valve being controlled to changeable duplex strainer expands DN150 (6 inch) to, even DN200 (8 inch).
The computing formula that obtains switching circulation area according to above-mentioned data is as follows:
DN150 ball circulation area 1.50 * 1.50 * 3.14 ÷ 4=1.77 dm
2
Two ball circulation area (1.06 * 1.06 * 3.14 ÷ 4) * 2=0.88 * 2=1.76 dm of DN100
2
Therefore in engineering, both equate;
And handover operation moment of torsion depends mainly on the frictional resistance between steel ball and seal receptacle.Be compared as follows:
Steel ball is directly proportional to steel ball pressure and steel ball radius to the frictional resistance between seal receptacle,
Steel ball pressure is directly proportional to the circulation area of ball.
DN150 ball circulation area 1.77 dm2 steel ball radius 1.15 dm
DN100 ball circulation area 0.88 dm2 steel ball radius 0.775 dm
DN100 (two ball): DN150=(0.88 * 0.775 * 2) ÷ (1.77 * 1.15)=0.67
The handover operation resistance of the two balls of DN100 is only to intend 2/3rds of the DN150 that thinks.
And in specific embodiment the DN150(4 inch for the utility model is created) each parts and the DN100(4 inch of the changeable duplex strainer of two ball combined type) product is general, thereby reduce production costs, facilitate production management, can adopt external diameter Φ 152mm, the steel ball of through-flow mouthful of diameter of phi 100mm.Now, being equivalent to has 6% undergauge, and the switching area of steel ball is 1.57 dm2, and this numerical value is in the allowed band of valve standard, and the pressure loss of the filter of flowing through only has atomic little increase.
Claims (1)
1. two changeable duplex strainer of ball combined type, comprise main casing (1), left filter chamber (2) He You filter chamber (3), in main casing (1), be provided with fluid inlet (4), fluid issuing (5) and the pipeline (6) being communicated with, Zuo filter chamber (2) is equipped with filter basket (7) in He You filter chamber (3), it is characterized in that: left filter chamber (2) is provided with teflon seal seat (8) between He You filter chamber (3), on teflon seal seat (8), be provided with for switch fluids and control fluid issuing (5) and four coaxial steel balls (9) of fluid inlet (4), two steel balls in top (9) are as the two balls (9-1) of entrance, and the upper entrance of inlet (10) the Yu You filter chamber (3) of the two balls (9-1) of entrance coordinates, two steel balls in bottom (9) are as the two balls (9-2) of outlet in addition, and the lower part outlet of two ball (9-2) the Yu You filter chambers (3) of outlet coordinates, the flow export (11) of the two balls (9-2) of outlet coordinates with fluid issuing (5) simultaneously, and in the top of main casing (1), be provided with the operating grip (12) switching for two filter baskets (7), between one of them steel ball (9) of the two balls (9-1) of operating grip (12) and entrance, be provided with turning cylinder (13), between one of them steel ball (9) of another steel ball (9) of the two balls (9-1) of entrance and the two balls (9-2) of outlet, be also provided with turning cylinder (13), between the two balls (9-1) of entrance, be provided with coupling block (14) simultaneously, between the two balls (9-2) of outlet, be also provided with coupling block (14).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201320579045.XU CN203469636U (en) | 2013-09-18 | 2013-09-18 | Double-ball combined switchable duplex filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201320579045.XU CN203469636U (en) | 2013-09-18 | 2013-09-18 | Double-ball combined switchable duplex filter |
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CN203469636U true CN203469636U (en) | 2014-03-12 |
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CN201320579045.XU Withdrawn - After Issue CN203469636U (en) | 2013-09-18 | 2013-09-18 | Double-ball combined switchable duplex filter |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103480196A (en) * | 2013-09-18 | 2014-01-01 | 杭州升惠机械有限公司 | Double-ball combined type switchable duplex filter |
CN108434843A (en) * | 2018-04-16 | 2018-08-24 | 西尼(南京)阀门机械有限公司 | A kind of dual channel filtered device |
-
2013
- 2013-09-18 CN CN201320579045.XU patent/CN203469636U/en not_active Withdrawn - After Issue
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103480196A (en) * | 2013-09-18 | 2014-01-01 | 杭州升惠机械有限公司 | Double-ball combined type switchable duplex filter |
CN103480196B (en) * | 2013-09-18 | 2015-05-13 | 杭州升惠机械有限公司 | Double-ball combined type switchable duplex filter |
CN108434843A (en) * | 2018-04-16 | 2018-08-24 | 西尼(南京)阀门机械有限公司 | A kind of dual channel filtered device |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150513 |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150513 |
|
RGAV | Abandon patent right to avoid regrant |