CN201719907U

CN201719907U - Partial flow filter with flow regulation function

Info

Publication number: CN201719907U
Application number: CN201020193259XU
Authority: CN
Inventors: 马凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-18
Filing date: 2010-05-18
Publication date: 2011-01-26
Anticipated expiration: 2020-05-18

Abstract

The utility model relates to a partial flow filter with a flow regulation function, which comprises a barrel body assemble, a composite filter sleeve assembly and a screw but driving mechanism. Compared with the design of the existing partial flow filter, in the utility model, single filter sleeve with fixed total filter area is changed into the composite filter sleeve assembly with regulable total filter area, a set of screw nut driving mechanism is arranged so as to regulate the number of composite filter assembly for work, so that the total filter area of the filter device can be changed, thus, the purpose of continuous flow compensation or one device compatible with two flow standards can be realized, so that the output flow can be stable, and the application range can be enlarged. The utility model can be suitable for the various situations that water diversion can be carried out by the difference of the upstream and downstream water level, such as water pipelines of cooling supply system of a water power station and water system of a water power shiplift. The filter precision scope is between 1.5-5mm.

Description

A kind of shunt filtering device with flow regulating function

[technical field]

The utility model relates to a kind of shunt filtering device with flow regulating function, be installed in the hydraulic pipeline, in order to separate and to filter in the diversion, though stop the less suspending sundries that still retains in the water through trash rack, as aquatiles such as deadwood, weeds, spiral shell and river freshwater mussel and some other rubbish thing or the like.

The utility model is a kind of auxiliary equipment of hydraulic pipeline system, belongs to the water conservancy project machinery product.Be applicable to by the water levels of upstream and downstream drop and the various occasions of diversion work, as the hydraulic pipeline of the water system of the chilled(cooling) water supply (CWS) system in power station, waterpower formula ship lift, irrigation canal system etc.

[background technology]

The shunt filtering device is that it is shunted water inlet with the difference that generally is commonly called as the water filtering device of water filter, forms two water stream channels: one is by after crossing the filter ruffle filter opening, at the water purification circulation road of the big flow slug flow speed of crossing the formation of filter ruffle central interior space; Another is to carry large scale foreign material that can't be by filter opening secretly and the effluent stream passage of the fast flow velocity of low discharge of directly being discharged by sewage draining exit.Like this, the stopping state of crossing the filter ruffle filter opening has been improved in water purification sewage shunting and going greatly, and the backwash number of times is reduced, and the backwash cycle stretch-out has improved the operating efficiency of filter.It is 2009200650216 patent specification that this type of design can be consulted application number, and name is called " a kind of shunt filtering device ".

And general water filter has only a water stream channel, so all big or small foreign material of carrying secretly in the water, all will pass through filter opening, and the foreign material of hyperfiltration bore dia can't pass through with current, then accumulate in around the filter opening, certainly the probability of stopping up filter opening increases greatly, makes the net water flux that passes through blocked successively and reduce gradually along with filter opening, is being lower than under the water supply flow in limited time at last, have to carry out back flush with block clearing, influenced the operating efficiency of filter so naturally.

At present the weak point of shunt filtering device is: though first can reduce the backwash number of times, prolong the backwash cycle, along with the increase gradually of blocked filter opening quantity, the net water flux of output always is in the labile state that descends gradually in 1 backwash cycle.The second, can not adapt to because of conditions of demand and change the upper limit of lifting output flow greatly.Thereby run into this situation, and can only carry out the specification upgrading, change the filter of big one-level flow.

Summary of the invention

[utility model purpose]

The purpose of this utility model is just in order to solve above-mentioned two problems.The method that solves is to make output flow can do within the specific limits to increase to adjust.Like this, one, can be used for compensating the decline of flow in the backwash cycle, make output flow stable; Two, the flow deposit can be used as, in the time of needn't having flow to increase demand slightly, the upgrading of filter specification will be made.

[utility model technical scheme and effect]

The realization the technical solution of the utility model is: with original total area of passage is the single filter ruffle of fixing of crossing, changing and becoming total area of passage is adjustable combined filtration grip assembly, it is characterized in that: the outer sliding sleeve of this combined filtration grip assembly connects with feed screw nut's driving mechanism, in order to adjust outer sliding sleeve in position that the inner filtration that cooperates with it puts, cover the filter opening quantity that inner filtration puts to change outer sliding sleeve, thereby change total area of passage of participation work filter opening, therefore can realize above-mentioned continuous flow-compensated or purpose of installing compatible two kinds of flow specifications, thereby obtain the effect of stablizing output flow and enlarging the scope of application.

Description of drawings

Abovely be described further in conjunction with the utility model product structure figure:

Fig. 1 is a cutaway view of the present utility model, and A is that water inlet, B are that delivery port, C are sewage draining exit.

Fig. 2 is the broken section of Fig. 1 along the A-A line, the relative position of expression screw mandrel (10), nut (11), draw back plate (12) and three guide rods (17), and the shape of draw back plate (12).

Fig. 3 is that the hermetically-sealed construction of expression sliding bearing (3a) and O-ring seals (3b) is amplified in the part of Fig. 1 K portion.

The specific embodiment

With reference to accompanying drawing 1, the utility model is made up of stack shell assembly, combined filtration grip assembly and feed screw nut's driving mechanism three parts.Wherein the stack shell assembly is made up of with O-ring seals (3b) uniform sliding bearing (3a) on inlet bend (1), preceding stack shell (2), back stack shell (3), exit bend (4), protecgulum (5) and stack shell (3) two ends, the back flange face; The combined filtration grip assembly is made up of inner filtration cover (6), outer sliding sleeve (7) and O-ring seals (8); Feed screw nut's driving mechanism is made up of back cover (9), iron chains cover (9a), screw mandrel (10), nut (11), draw back plate (12), gland (13), O-ring seals (14), bearing block (15), angular ball bearing (16) and guide rod (17).It is characterized in that: guide rod (17) is by being fixed on 3 pairs of sliding bearings (3a) uniform on the flange face of stack shell (3) two ends, back as supporting and guiding, guide rod (17) left end and outer sliding sleeve (7) are connected and fixed, right-hand member and draw back plate (12) are connected and fixed, and screw mandrel (10) left end is by being installed on a pair of angular ball bearing (16) in the bearing block (15) as radial support with bear axial force, rely on the free degree that moves axially of gland (13) restriction bearing (16) and screw mandrel (10), it can only be rotated, nut (11) cooperates with screw mandrel (10), be mounted in the medium pore of draw back plate (12), because draw back plate (12) is subjected to the restriction of joining with it three guide rods (17) and back stack shell (3), so when screw mandrel (10) rotates, nut (11) will be together with draw back plate (12), guide rod (17), outer sliding sleeve (7) moves axially together, thereby realizes the adjustment of output flow.The flange of back cover (9) is connected and fixed with the right flange of back stack shell (3), and with the aiding support of its central iron chains cover (9a) as screw mandrel (10) right-hand member.

[method of operating of utility model and design feature]

Method of operating of the present utility model is: when outer sliding sleeve (7) is in as shown in Figure 1 high order end position, this moment, flow was a minimum flow, it is the lower limit of design discharge, rotary screw rod (10), outer sliding sleeve (7) is moved right, the filter opening quantity of then exposing on the inner filtration cover (6) increases, output flow will increase thereupon, when outer sliding sleeve (7) moves to right to the low order end position, 1 times of filter opening quantity increase or more (these will decide on designing requirement) of participation work, thereby two kinds of flow specifications of the compatible filter of possibility.

The method of rotary screw rod (10): can be manual, adopt special spanner, be enclosed within on the square toes of screw mandrel (10) right-hand member, rotation gets final product; Also can use electrical header, implement electronicly, carry out Long-distance Control; Also can adopt corresponding sensing elements and digital control system, carry out automatic Compensation Regulation according to the variation of output flow.

Design feature of the present utility model is: import and export elbow and protrude from outside the stack shell, import and export the line of centres and be parallel to the stack shell center line, be convenient to like this in pipeline, carry out plug-in type and install, and feed screw nut's driving mechanism there are enough positions and operating space, noiseless with waterline.

Claims

1. shunt filtering device with flow regulating function, be to utilize feed screw nut's driving mechanism, change total area of passage of combined filtration grip assembly, thereby regulate the net water flux of output, it is characterized in that: the guide rod of this driving mechanism (17) is by being fixed on 3 pairs of sliding bearings (3a) uniform on the flange face of stack shell (3) two ends, back as supporting and guiding, guide rod (17) left end and outer sliding sleeve (7) are connected and fixed, right-hand member and draw back plate (12) are connected and fixed, and screw mandrel (10) left end is by being installed on a pair of angular ball bearing (16) in the bearing block (15) as radial support with bear axial force, rely on the free degree that moves axially of gland (13) restriction bearing (16) and screw mandrel (10), it can only be rotated, nut (11) cooperates with screw mandrel (10), be mounted in the medium pore of draw back plate (12), because draw back plate (12) is subjected to the restriction of joining with it three guide rods (17) and back stack shell (3), so when screw mandrel (10) rotates, nut (11) will be together with draw back plate (12), guide rod (17), outer sliding sleeve (7) moves axially together, thereby realize the adjustment of output flow, the flange of back cover (9) is connected and fixed with the right flange of back stack shell (3), and with the aiding support of its wall central authorities' iron chains covers (9a) as screw mandrel (10) right-hand member.