CN2054123U - Filtering valve - Google Patents

Abstract

The utility model relates to a filtering valve. The valve core channel of a rotary valve is provided with a filtering core. The filtering valve is the delicate combination of a filter and a valve, and has multiple functions of filtering, circulation, throttling, stopping, reverse flushing, reverse distribution, etc. The filtering core can be maintained and replaced without dismounting the filtering valve. The filtering valve can be made into various channels and various valve core types and can be operated manually or automatically, and the filtering valve is suitable for automatic washing and manual washing. With compact structure, convenient use, and simple maintenance, the reverse flushing filtering valve omits a plurality of pipeline accessories, and is a widely used pipeline accessory.

Description

Filtering valve

The utility model relates to a kind of valve with filter, also relates to a kind of valve that has filter and can carry out back flush to it especially.

Filter in extensive use in the pipeline, and after filter used a period of time, can gather impurity on the filter core needed to clean.Two kinds of methods are arranged usually: a kind of is to close the preceding valve of filter, pulls down filter core and cleans, and does pretty troublesome like this.Another kind method is to connect into suitable pipeline with one group of valve, can carry out back flush to filter core, though more convenient, the pipeline accessory is many, and institute takes up space greatly, cost is high.The Chinese utility model patent of on June 8th, 88 bulletin has proposed integrated back flush filter for No. 87209861, has realized filtration, back flush and by three kinds of functions, and than structure in external valve seemed that compactness howed.Yet it still leaves very important room for improvement aspect following two.

One, the changeover valve core in the aforementioned patent has three independently passages, in fact just in a valve body spool is made up, and also seems complicated and heavy huge.

Two, the back flush of filter has two kinds of situations usually: a kind of situation medium is a relatively cleaner medium such as clear water, air, steam, and the purpose of filtration is just removed the impurity that falls into once in a while, the cleaning of available these media itself, and we are referred to as from flushing.What consider in the aforementioned patent is this from the flushing situation.Another kind of situation is the unholiness or easy fouling of medium itself, and perhaps medium is a little special fluids, needs common, inexpensive media such as other bubbling air, clear water, steam to wash, and we are referred to as his flushing.Aforementioned patent is not considered his flushing situation, cannot be suitable for yet.

The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of valve of band filter of simple compactness is provided, its further purpose be this valve not only have circulation by and regulate flow and distribute commutation function, also have and filter and the function of backwash.This recoil filter tap can check easily whether filter stops up and damage, and can under the situation of not tearing valve open, change or repair filter core easily, another purpose of the present utility model is that this filter tap can be applicable to simultaneously that flushing certainly and he wash two kinds of situations.

The utility model adopts following technological scheme to achieve the above object:

One, rotational valve core of configuration in valve body has passage on the spool, loads onto filter core in the feeder connection side.Spool can adopt cone, spheroid, disk or rotor, loads onto filter core in fact exactly on the valve core channel of stopcock, ball valve, rotary slider valve, has just become simple filtering valve.

Two, the valve body of above-mentioned filter tap adopts the threeway pattern, and cone or ball-type spool adopt L type or y type passage, and disk or rotor are provided with n shape or curved channel, just can realize the filtration circulation under the flushing situation, back flush and the function of ending.

Three, the valve body of above-mentioned filter tap adopts the pattern of four-way, just can be used for washing two kinds of situations from flushing and he, just can change the filter core that damages but also can not tear valve open.

Four, the valve body of above-mentioned filter tap adopts four-way or the above pattern of four-way, but also multichannel of spool removes the recoil filtration and also can play multiple effects such as distribution, commutation.

Five, filter core of the present utility model adopts cup-shaped or pot shape, to increase circulation area, can increase supporting member in case of necessity.

Advantage of the present utility model is fairly obvious, simple and compact structure, can be designed to multiple different types according to different requirements, either way can be suitable for from flushing and his flushing, and it also can play a part to distribute except filtration, recoil, switch, throttling and commutation, easy to use, be widely used, this valve not only can be manual, be with automatic executing agency also available pneumatic, surge, electronic or multiple interlock handles automatically.

In order more clearly to narrate design of the present utility model, be illustrated below in conjunction with embodiment and with reference to accompanying drawing.

Fig. 1 is first embodiment's a generalized section.

Fig. 2 is second embodiment's a generalized section.

Fig. 3 is the 3rd embodiment's a generalized section.

Fig. 4 is pot a shape element kit structure and a scheme of installation.

Shown in Figure 1, valve body has four port A, B, C, D on 1., spool has L type passage on 2., 3. passage one end is equipped with element kit, spool can not make its rotation by operation piece (drawing among the figure), band peeping lens stifle 5. is housed 4. on the port C of valve body, this passage is blocked usually.Explanation is washed under two kinds of situations it from flushing and he and how to be recoiled and unpick and wash respectively below.

(1), under the situation of flushing certainly, port A is as import, B is as normal exit, D is as the recoil outlet, C is as checking and unpick and wash outlet.(a) figure is normal filtration circulation, and (b) figure be recoil, and (c) figure is a valve closing, just can see whether filter core stops up or damage by peeping lens at this moment, as replacing, can pull down filter core and changes as long as unload stifle.

(2), under the situation of his flushing, this moment, A was normal import, B is a normal exit, D is the recoil import, C is recoil outlet, double as inspection simultaneously and the more outlet of renew cartridge.

(d) figure is the normal filtration circulation, and (e) figure is recoil.This moment, valve for the medium of normal circulation was in closed condition.In fact we do not need to take apart stifle at every turn, be provided with solid-holding hole in C mouth inboard, it just amasss in the solid-holding hole under the very many situations of impurity, when we by peeping lens seen impurity many or filter core broken, we then must pull down stifle, wash away impurity or renew cartridge more.

Filter valve core shown in Figure 1 adopts cone just to become recoil to filter stopcock, and spool adopts spheroid just to become the recoil Filtering ball valve, and it also can partly be opened certainly flow is regulated, and can be used as the usefulness of normal allocation valve or selector valve except that above-mentioned functions.The spool of this filter tap also can make multichannel.

Filter tap shown in Figure 1, import and export A, the B of its normal circulation become the angie type configuration.

The configuration that then is in line of filter tap shown in Figure 2, import and export A, B of its normal circulation.

A, B, four import and export of C, D are also arranged on the valve body among Fig. 2, and spool then is y-shaped passage, on element kit (3) is arranged, this valve is not with peeping lens and stifle, also division is as follows in two kinds of situation for its working condition:

When flushing, A is import, and B is a normal exit, and D is the recoil outlet, and C is for checking and unpick and wash outlet, and (a) figure is normal circulation, and (b) figure is recoil, and (c) figure is a valve closing, and can check and unpick and wash.

When he washed, A was normal import, and B is a normal exit, and D unpicks and washes outlet for recoil import, C for recoil exports and conducts a survey, and (d) figure is the normal filtration circulation, and (e) figure is recoil.

Something in common repeats no more among the embodiment of Fig. 2 and the embodiment of Fig. 1, and this valve mainly is suitable for stopcock.

Shown in Figure 3 is to filter the rotary slider valve.

A, B, four mouths of C, D are arranged on the valve body 1, and 2. spool be slide block or claim disk, on n shape or curved channel are arranged, slide block can rotate along the center, element kit is housed 3. on the valve core channel, also can adorns on the valve body opening C or do not adorn peeping lens and stifle, also be described as follows in two kinds of situation below:

During self-cleaning, A is import, and B is a normal exit, and D unpicks and washes mouth for recoil outlet, C for checking.Figure (a) is the normal filtration circulation, (b) is recoil, (c) unpicks and washes for checking.

When he washed, A was normal import, and B is a normal exit, and C unpicks and washes a mouthful also do recoil outlet for checking, D is the import that recoils, and scheming (d) is normal filtration, and figure (e) is recoil.

Figure (f) is each mouthful closing state.

Present embodiment also illustrates operating grip and positioning means thereof.

Among the figure spool 2. head and handle 4. endoporus match and fix with lateral pin, porose on the handle, interior dress pressure spring 8. with steel ball 7., valve gap appropriate location 6. is processed with several pits, when handle rested on special position, steel ball slided in the pit and plays the role of positioning.

Certainly, spool can not be connected with handle yet, and is connected with various automatic executing agencies, also with regard to available pneumatic, surge or electronic the manipulation.

Fig. 4 is the structure and the scheme of installation of pot shape filter core.Single or multiple lift filter screen (1) is made a pot shape, is strengthened by supporter with holes (2), and is fixing with circlip (3), a kind of in just multiple shape of filter core that Fig. 4 provides and the mounting type.

From top several embodiments as can be seen the utility model also comprised purposes invention under his flushing situation.Valve shown in the utility model also can be introduced other medium and comprise that various devices such as pump, valve, container wash after to valve except the filter core that can recoil.For example, in Dairy Production, available described valve A, B port be by the break-make of (d) figure control emulsion, by (e) figure introduce clear water with D, C port to valve after equipment wash.At this moment, B, C are communicated with in valve or outside the valve for two mouthfuls.Clearly, this purposes invention just can be saved one group of valve and accessory.

Claims (9)

1, a kind of filter tap include import and export valve body 1., 2. the spool that rotates in valve body has passage on it, it is characterized in that filter core being housed 3. on the passage of spool.

2, according to the described filter tap of claim (1), its feature is that also described valve body has the port more than three.

3, according to the described filter tap of claim (2), it is characterized in that described spool is cone or spheroid, the passage on it is L shaped or the y type.

4, according to the described filter tap of claim (2), it is characterized in that described spool is disk or rotor, the passage on it is n shape or arc.

5, according to claim (2) or (3) or (4) described filter tap, its feature also be to be equipped with on the port of described valve body stifle 5. or stifle 5. go up and also have peeping lens 4..

6, according to claim (1) or (2) or (3) or (4) described filter tap, described filter core is cup-shaped or pot shape.

7, according to claim (1) or (2) or (3) or (4) described filter tap, it is characterized in that on the spool operating stem positioning device being arranged.

8, according to claim (1) or (2) or (3) or (4) described filter tap, it is characterized in that spool can link with all kinds of automatic executing agencies becomes the automatic fitration valve.

9,, it is characterized in that not being only applicable to being applicable to also that from flushing he washes according to claim (2) or (3) or (4) described filter tap.