CN2362574Y - Filter - Google Patents

Abstract

The utility model relates to a filter, belonging to the field of filtering devices, which includes a main body, a filter cylinder, a switch cover located at an opening end of the main body, etc., and is characterized in that a quick switch cover is adopted, which mainly includes four Respectively corresponding to the flange cover and the flange plate provided with a plurality of semi-closed bolt holes and a group of joint bolts passing through the semi-closed bolt holes to connect the flange cover and the flange plate. In addition, the shape of the main pipe body is L-shaped, and a porous plate with a wave-shaped cross section is used in the filter cartridge. The utility model has the advantages of fast and convenient switch, high flexibility, high efficiency and energy saving.

Description

Filter

The utility model relates to a kind of filter, belongs to the filter field.

Filter is parts of foreign material in filtered water or the air-flow; mainly comprise the person in charge's body that has import and export respectively; the cartridge filter that constitutes by porous plate, screen cloth, carriage; and be positioned at the switch cover of being responsible for another openend of body etc.; it is generally used for filtering before the pump; make foreign material or larger particles can not enter the pump housing, thus the service life, assurance whole system working stability and the purpose of keeping the safety in production that play the protection pump, prolong pump and other equipment.Because it is parts of filtered water or air-flow, therefore in use,, improve the efficient of pump in order to reduce the resistance of water or air-flow, need often to take out cartridge filter, the foreign material on the cleaning screen cloth, thus need often to open switch cover.And the domestic and international filter switch cover of producing all adopts bolted at present, when opening switch cover, bolt all must be backed out, when closing switch cover, again bolt is all screwed on, and this one open-one close, not only time-consuming but also require great effort.In addition, the various filters of domestic present production such as (seeing Fig. 1, Fig. 2 respectively) such as Y type, T types, all can not change the flow direction of water or air-flow, like this, in engineering is used, when needs changed the flow direction of water or air-flow, existing filter was all inapplicable, thereby has limited its scope of application greatly.In addition, the porous plate section configuration in the cartridge filter that present filtered water or air-flow are used mostly is circular greatly, and filter area is little, and filtration resistance is bigger, makes the power consumption of pump bigger.

The purpose of this utility model is to overcome above-mentioned prior art defective, providing a kind of can open and filter easy to use fast, and on its basis, a kind of water (or stream direction that changes is provided, thereby it is more flexible in engineering is used, and filtration resistance is little, can improve the efficient of pump, the filter of energy savings.

For achieving the above object, adopted a kind of quick type switch cover in the utility model, corresponding respectively blind flange and the ring flange that is provided with a plurality of semiclosed shape bolts hole around it mainly comprises, pass semiclosed shape bolt hole links to each other blind flange with ring flange one group of eyelet bolt, with ring flange be responsible for the support plate that body is fixedly linked, and one group of bearing pin that eyelet bolt head and support plate are movably connected.After adopting technique scheme, be fixedly linked by eyelet bolt between blind flange and ring flange and the person in charge's body, when unscrewing with nut that eyelet bolt matches, eyelet bolt just can rotate and spins off from opening one side (outside) of semiclosed shape bolt hole around the bearing pin of its head, like this, when needs are opened switch cover, only need unscrew each nut successively, each eyelet bolt just can spin off from opening one side of semiclosed shape bolt hole, thereby can easily switch cover be taken off.Each when opening switch cover, only need unscrew nut and get final product, and needn't bolt all will be backed out as prior art, improved switching speed greatly, save time and laborsaving.

In order to make above-mentioned filter application more flexible, person in charge's body shape of the present utility model adopts L shaped, and adopts Welding Structure.Like this, not only water or airflow direction can be changed 90 °, and simple in structure, and floor space is little, and is more flexible in engineering is used.In addition, adopting a kind of transverse shape in the cartridge filter of the present utility model is corrugated porous plate, like this, its filter area is increased greatly, and filtration resistance reduces, thereby can reduce the power of pump, and saves energy reaches energy-efficient purpose.

Compared with prior art, the utlity model has beneficial effects such as using the power efficient and convenient, that high efficiency also can reduce pump, energy savings.

Below in conjunction with drawings and Examples the utility model is described in further details.

Fig. 1: existing y-type filter structure chart;

Fig. 2: existing T type filter structure chart;

Fig. 3: the utility model has the l type filter structure chart of quick formula switch cover;

Fig. 4: the front view of quick formula switch cover in the utility model;

Fig. 5: the cutaway view of quick formula switch cover in the utility model;

Fig. 6: special eyelet bolt structure chart in the utility model;

Fig. 7: the structure chart of waveform porous plate in the utility model.

Embodiment:

As shown in Figure 3, in most preferred embodiment of the utility model, adopt a kind of welded l type filter that has quick type switch cover, it comprises that the L type that is welded is responsible for body 3, the cartridge filter 4 that is made of porous plate, screen cloth, carriage, and the quick formula switch cover that mainly constitutes by blind flange 7, ring flange 8, in addition, among Fig. 3,1 is water (or gas) import, 2 is water (or gas) outlet, and water-in and water-out (or gas) mouthful place also is respectively equipped with flange 9.The concrete structure of described quick type switch cover is seen Fig. 4, shown in Figure 5, corresponding respectively blind flange 7 and the ring flange 8 that is provided with a plurality of semiclosed shape bolts hole 6 around it comprises, pass semiclosed shape bolt hole 6 links to each other blind flange 7 with ring flange 8 one group of eyelet bolt 10, with ring flange 8 be responsible for the support plate 13 that body 1 is fixedly linked, and one group of bearing pin 12 that eyelet bolt 10 heads 15 and support plate 13 are movably connected, eyelet bolt 10 matches with nut 11, is provided with sealing ring 14 between blind flange 7 and the ring flange 8.

For further guaranteeing safety, when working pressure is big, above-mentioned eyelet bolt 10 can adopt tailored version, its structure is as follows: compare with common eyelet bolt, the diameter of bore of the head 15 of special eyelet bolt increases by 1～3mm, the outside diameter of head 15 increases by 2～5mm (see figure 6), can increase the bearing capacity of eyelet bolt like this, and is more secure and reliable to use.With the nominal diameter that adopts quick formula switch cover is 100mm, nominal pressure is that the l type filter of 1.6Mpa is an example, if adopt common eyelet bolt, can adopt the eyelet bolt of 8 M16 that are symmetrically distributed around the switch cover to come adpting flange lid and ring flange, the head diameter of bore and the head outside diameter of eyelet bolt are respectively 12mm and 28mm; If adopt special eyelet bolt, then the head diameter of bore of eyelet bolt and head outside diameter can be set to 13mm and 30mm respectively, increase 1mm and 2mm respectively than life size.

Among Fig. 7, adopting a kind of shape of cross section in the cartridge filter of present embodiment is corrugated porous plate 16, compares with circular cross-section, and its filter area increases greatly, and filtration resistance reduces, thereby can reduce the power of pump, and saves energy reaches energy-efficient purpose.Still the l type filter with nominal diameter φ 100 is filtered into example.Filter area is calculated as follows:

Plain filter: circular porous plate perimeter L 1=Л D=3.14 * 80=251.2mm

L type filter: waveform porous plate perimeter L 2=n * 2 Л R/2=28 * 3.14 * 4=351.68mm

Waveform porous plate girth increases multiple=L2/L1=351.68/251.2=1.4

If two kinds of cartridge filter porous plate length are identical, be H, then

The ratio of filter cartridge area=(L2 * H)/(L1 * H)=1.4

As seen, the filter area of waveform filter is 1.4 times of circular filter, and filter area increases, and filtration resistance reduces, thereby the power of pump is reduced, and saves energy reaches energy-efficient purpose.

The quick type switch cover of the utility model design proves through pressure experiment, and is safe and reliable, easy to use.In addition, it is simple that body construction is responsible in its L shaped welding, and floor space is little, and is flexible in engineering is used.

Obviously, quick type switch cover of the present utility model also can be applied in the plain filters such as existing T type, Y type easily, and its waveform porous plate also can be applied in separately in the existing y-type filter.In addition; for adapting to different environment for use needs; person in charge's body of the present utility model both can be as shown in Figure 3; be provided with flange 9 respectively at the import and export place; link to each other with external pipe by flange 9; can not establish any connector at import and export yet; directly will import and export with external pipe and link to each other by the pipe connected mode; except that L shaped external structure; the shape of being responsible for body also can adopt can make water (or the flow direction of stream changes other geometry of 90 °, more than these do not break away from protection domain of the present utility model.

Claims (4)

1. filter, comprise and be respectively equipped with import (1) on it, person in charge's body (3) of outlet (2), be positioned at and be responsible for body (3) and by porous plate (16), screen cloth, the cartridge filter (4) that carriage constitutes, and be positioned at the switch cover (5) of being responsible for another openend of body (3), it is characterized in that: described switch cover (5) is a kind of quick type switch cover that can open fast, around it mainly comprises respectively correspondence be provided with the blind flange (7) and the ring flange (8) of a plurality of semiclosed shape bolts hole (6), pass semiclosed shape bolt hole (6) links to each other blind flange (7) with ring flange (8) one group of eyelet bolt (10), with ring flange (8) be responsible for the support plate (13) that body (3) is fixedly linked, and one group of bearing pin (12) that eyelet bolt (10) head (15) and support plate (13) are movably connected.

2. filter according to claim 1 is characterized in that: described eyelet bolt (10) is a tailored version, compares with common eyelet bolt, and the diameter of bore of its head (15) increases by 1～3mm, and the outside diameter of head (15) increases by 2～5mm.

3. filter according to claim 1 is characterized in that: being shaped as of described person in charge's body (3) is L shaped, and adopts Welding Structure.

4. filter according to claim 1 is characterized in that: the shape of cross section of porous plate (16) is a waveform in the described cartridge filter (4).

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