CN205832723U - A kind of accurate filter - Google Patents

Abstract

This utility model provides a kind of accurate filter, belongs to art of filters, and accurate filter includes housing, dividing plate and at least one filter element；Housing in dividing plate is arranged on housing and is separated into sample cavity and filter sample chamber, and sample cavity is provided with injection port, and filter sample chamber is provided with outlet；Dividing plate is provided with the perforate identical with filter element quantity；Each filter element has peristome, and filter element is arranged at filter sample chamber, and peristome is arranged at perforate and connects with sample cavity.The accurate filter that above-mentioned design obtains, filter element peristome connects with sample cavity through examining sky, makes the sealing between filter element and dividing plate tight；The filter efficiency of accurate filter can be improved；Convenient dismounting simultaneously and replacing filter element.

Description

A kind of accurate filter

Technical field

This utility model relates to art of filters, in particular to a kind of accurate filter.

Background technology

Accurate filter be a kind of be liquid or the advanced treating of gas and separation equipment, be that one is specifically designed to filtration sample The device of solid suspended particles etc. in product, may filter that in sample particle diameter at the solid particulate matter of 1-lOum, finished product can be for The process equipment that follow-up higher height reason requires: be suitable for thermal power plant containing boiler feedwater, casting, papermaking, metallurgy, food, medicine etc. The application that every profession and trade produces.

It is known that under any operating mode, the air of unprocessed mistake contains a lot of impurity, such as: water, rust, granule dust And oil.If not removing these impurity, they will cause extra production loss, product quality problem and high maintenance cost.Pressure Contracting air is the main security energy of large-scale industrial production, improves compressed air quality and reduces production cost exactly.So Accurate filter will be used to process, reduce cost.

Accurate filter (also referred to as cartridge filter), cylinder shell typically uses stainless steel manufacture, internal employing The tubulose filter elements such as PP is melt-blown, line burning, folding, titanium filter core, active carbon filter core as filter element, according to different filter mediums and Design technology selects different filter elements, to reach the requirement of effluent quality.

Present filter, if filter element is dismountable structure, then the sealing between filter element and enclosure interior dividing plate is The tightest；If the sealing between filter element and enclosure interior dividing plate is tight, then it is typically between filter element and housing to be difficult to tear open Unload.The most existing filter is direct injected, and the sample of required filtration enters directly in filter element, easily makes bulky grain, Yi Chen The contamination precipitation formed sediment affects the life-span of filter element in filter element.

Utility model content

This utility model provides a kind of accurate filter, it is intended to improve existing filter seal not sufficiently good or The problem being difficult between filter element and housing dismantle.

This utility model is achieved in that

A kind of accurate filter, accurate filter includes housing, dividing plate and at least one filter element；Dividing plate is arranged in housing And housing is separated into sample cavity and filter sample chamber, sample cavity is provided with injection port, and filter sample chamber is provided with outlet；Dividing plate be provided with The perforate that filter element quantity is identical；Each filter element has peristome, filter element be arranged at filter sample chamber, peristome be arranged at perforate and with enter Sample chamber connects.

Further, in this utility model preferred embodiment, peristome includes protuberance and connecting portion, and connecting portion has There is connection opening within filter element；Protuberance props up dividing plate, and connecting portion stretches into perforate and connects with sample cavity.

Further, in this utility model preferred embodiment, the inwall of perforate is provided with multiple mounting groove, multiple installations Groove, along inwall circumferentially disposed of perforate, is provided with sealing ring in each mounting groove.

Further, in this utility model preferred embodiment, accurate filter also includes fixing nut, and connecting portion sets Having external screw thread, connecting portion through perforate and is connected with fixing nut.

Further, in this utility model preferred embodiment, it is provided with cyclic spring between protuberance and dividing plate and seals Pad.

Further, in this utility model preferred embodiment, the cross section of filter element is circular or triangle or square Or pentagon or hexagon.

Further, in this utility model preferred embodiment, dividing plate is metal partion (metp).

Further, in this utility model preferred embodiment, accurate filter also includes filter mantle, described filter mantle Including cylindrical portion and filter screen, described filter screen is fixing with described cylindrical portion to be connected.

Further, in this utility model preferred embodiment, the inwall of cylindrical portion is provided with female thread, described connection Portion stretches out the part of described perforate and is provided with and the external screw thread of described screw-internal thread fit.

Further, in this utility model preferred embodiment, bottom sample cavity, it is provided with sewage draining exit, sewage outfalls setting There is the sealing lid for sealing sewage draining exit.

The beneficial effects of the utility model are: the accurate filter that this utility model is obtained by above-mentioned design, and filter element is opened Oral area connects through examining sky with sample cavity, makes the sealing between filter element and dividing plate tight；The filtration of accurate filter can be improved Efficiency；Convenient dismounting simultaneously and replacing filter element.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to required in embodiment The accompanying drawing used is briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most not Should be considered as the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, Other relevant accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the accurate filter that this utility model embodiment 1 provides；

Fig. 2 is the structure enlarged diagram of filter element peristome in Fig. 1；

Fig. 3 is the structure enlarged diagram of sewage draining exit in Fig. 1；

Fig. 4 is the schematic diagram that this utility model implements the accurate filter of 2 offers.

Figure acceptance of the bid note is respectively as follows:

Accurate filter 100,200；First dividing plate 111,211, second partition 113,213；Through hole 213a；3rd dividing plate 117；Perforate 112；Sealing ring 114；Annular resilient sealing gasket 115；Trip bolt 219；Housing 120；Sample cavity 121；Injection port 122；Sewage draining exit 123；Seal lid 124；Filter sample chamber 125；Outlet 126；Fixing nut 128；Housing wall 129；Filter element 130；Open Oral area 131；Protuberance 132；Compressive plane 132a；Connecting portion 133；Core wall 134；Filter element chamber 135；Roof 136,236；Fixing hole 236a；Filter mantle 137；Filter screen 137a；Fixed part 137b.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with this practicality Accompanying drawing in novel embodiment, is clearly and completely described the technical scheme in this utility model embodiment, aobvious So, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on this practicality Embodiment in novel, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of this utility model protection.Therefore, below to the enforcement of the present utility model provided in the accompanying drawings The detailed description of mode is not intended to limit claimed scope of the present utility model, but is merely representative of of the present utility model Selected embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under dynamic premise, broadly falls into the scope of this utility model protection.

In description of the present utility model, it is to be understood that term " length ", " thickness ", " on ", D score, " front ", " afterwards ", " top ", " end ", " interior ", " outward ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position pass System, is for only for ease of description this utility model and simplifies description rather than instruction or imply that the equipment of indication or element are necessary There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two Above, unless otherwise expressly limited specifically.

In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be It is mechanically connected；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two element internals connection or The interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned Term concrete meaning in this utility model.

In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it D score can include that the first and second features directly contact, it is also possible to includes that the first and second features are not directly contact but logical Cross the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.First is special Levy second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

Embodiment 1, refering to Fig. 1 to Fig. 3.

Seeing Fig. 1, the present embodiment provides a kind of accurate filter 100, including the first dividing plate 111, second partition 113, the Three dividing plates 117, housing 120 and filter element 130, also include filter mantle 137, fixing nut 128 and sewage draining exit 123.

In the present embodiment, the housing 120 of this accurate filter 100 is cylindrical housings；The cross section of filter element 130 is preferably Circular, it is also possible to be triangle, square, pentagon and hexagon etc..Seeing Fig. 1, accurate filter 100 also includes fixing nut 128 and filter mantle 137.

Seeing Fig. 1, second partition 113 and the 3rd dividing plate 117 are separately positioned on the two ends of accurate filter 100, second every Plate 113 is arranged on the upper end of housing 120, and the 3rd dividing plate 117 is arranged on the lower end of housing 120.First dividing plate 111 is provided in essence The bottom of close filter 100, housing 120 is divided into sample cavity 121 and filter sample chamber 125 by the first dividing plate 111；Also set on housing 120 It is equipped with injection port 122, outlet 126 and sewage draining exit 123.Injection port 122 is arranged on the housing wall 129 of sample cavity 121, sample introduction Mouthfuls 122 are provided with attachment structure (not shown), are connected with the equipment such as external infusion pump, it would be desirable to the liquid of filtration or Gas sample is infused in sample cavity.Outlet 126 is arranged on the housing wall 129 in filter sample chamber 125, and outlet 126 is arranged There is attachment structure (not shown), be connected with the equipment such as external finished product collection device, by the liquid filtered or gas Finished product is transferred in finished product collection device from filter sample chamber 125.Seeing Fig. 3, sewage draining exit 123 is arranged on the housing of sample cavity 121 Opposite side relative with injection port 122 on wall 129, sewage draining exit 123 is positioned close to the position of the 3rd dividing plate 117；Sewage draining exit 123 It is arranged with sealing lid 124, seals lid 124 with sewage draining exit 123 by helicitic texture compact siro spinning technology.

Seeing Fig. 1 and Fig. 2, filter element 130 includes peristome 131, core wall 134 and roof 136.The shape filter element of roof 136 Unanimously, it is all circle；Filter element 130 grade of the external diameter of roof 136 is big, and roof 136 is fixed with core wall 134 compact siro spinning technology；Core wall 134 Filter element chamber 135 is formed with roof.Peristome 131 includes protuberance 132 and connecting portion 133；The diameter of protuberance 132 is more than first The diameter of the perforate 112 on dividing plate 111, is provided with Annular resilient sealing gasket 115 between protuberance 132 and the first dividing plate 111；Ring The internal diameter of shape elastic sealing gasket 115 is big with the external diameter of connecting portion 133 etc., and Annular resilient sealing gasket 115 is set in connecting portion 133 On, the compressive plane 132a of protuberance 132, under the action of gravity of self of filter element 130, extrudes Annular resilient sealing gasket 115.

Perforate 112 inwall of the first dividing plate 111 is provided with 2 mounting grooves along the circumferencial direction in hole, is provided with in mounting groove Sealing ring 114.The length of connecting portion 133 is more than the thickness of roof；Connecting portion 133, through the perforate 112 of the first dividing plate 111, squeezes The sealing ring 114 arranged in pressure mounting groove；Connecting portion 133 is provided with outer spiral shell through the part of the perforate 112 of the first dividing plate 111 Stricture of vagina, fixing nut 138 coordinates with the external screw thread of connecting portion 133, is formed the most threaded.It should be noted that this enforcement In example, connecting portion 133 passes the length thickness more than fixing nut 138 of the part of the perforate 112 of the first dividing plate 111.

Filter mantle 137 includes filter screen 137a and fixed part 137b, filter screen 137a and fixed part 137b；Filter screen 137a tinsel Network structure, fixed part 137b is cirque structure.The outer wall of fixed part 137b has draw-in groove, filter screen 137a to cover fixed part 137b, and have card slot fit by the outer wall of clip Yu fixed part 137b, filter screen 137a is fixed on the outer wall of fixed part 137b. The internal diameter of fixed part 137b is big with the external diameter of the connecting portion 133 of filter element 130 etc.；The inwall of fixed part 137b is provided with helicitic texture, Filter mantle 137, by coordinating with the external screw thread of connecting portion 133, is fixed on the connecting portion of filter element 130 by fixed part 137b female thread On 133.

The when of use, external input equipment is connected with the injection port 122 on sample cavity 121 housing wall 129；Pass through External input equipment, by the sample delivery of required filtration to sample cavity 121, if sample contains the impurity of easily precipitation, In sample cavity 121, easily the impurity of precipitation can precipitate under the effect of self gravitation, is deposited on the 3rd dividing plate 117；And it is big Granule, large-sized impurity along current through filter mantle 137 when, due to the effect of filter screen 137a, by bulky grain, big The impurity of size will be filtered.Sample, after filter mantle 137, enters in filter element chamber 135, in more entering of core wall 134 Under the filtration of one step, sample enters in filter sample chamber 125；By outlet 126, connect external finished product collecting device, Sample is taken away.

Under the filtration of filter element 130, the inwall of core wall 134 also can gradually be attached with the compositions such as incrustation scale, owing to incrustation scale exists The compositions such as the attachment of the inwall of core wall 134, can affect the core wall 134 filtration to sample, incrustation scale constantly gather sedimentation and can be formed greatly The impurity of granule, due to the impact of gravity, necessarily core wall 134 bottom of filter element 130 can accumulate near the place of peristome 131 More impurity；Even can be deposited on the filter screen 137a of filter mantle 137.So can directly affect the efficiency of whole filter very To being the service life affecting filter.

At this point it is possible to disassembled by filter mantle 137, it is carried out processing；The inwall of core wall 134 can be carried out simultaneously Cleanings etc. process.If filter mantle 137 still can not play a role after cleaning, then can be replaced.If it is same to core The cleaning of the inwall of wall 134 still has a strong impact on the function of filter element 130, then can use new filter element instead in the way of using replacing 130.After passing the first dividing plate 111 due to the peristome 131 of filter element 130, connecting portion 133 is with fixing nut 128 by screw thread even Connect, and filter mantle 137 is also to be connected with connecting portion 133 by screw thread, simple to operation.

And settle and accumulate in the impurity on the 3rd dividing plate 117 of sample cavity 121, then can be by opening on sewage draining exit 123 Sealing lid 124, impurity etc. is cleared out.

Meanwhile, connecting portion 133 coordinates with fixing nut 128, the most also can play the effect of sealing, prevent into Sample in sample chamber 121 advances to filter in sample chamber 125 without filtration；So fixing nut 128 and connecting portion 133 coordinate product Raw first resealing effect.Perforate 112 inwall of the first dividing plate 111 is provided with sealing ring 114；Connecting portion 133 through first every During the perforate 112 of plate 111, between crush seal circle 114, and sealing ring 114, form interference fit, produce the second resealing and make With.The Annular resilient sealing gasket 115 arranged between protuberance 132 and the first dividing plate 111, under the action of gravity of filter element 130, squeezes Pressure surface 132a extrudes Annular resilient sealing gasket 115, produces triple seal effect.Under this triple seal effect, it is possible to prevent Influence each other between sample in sample cavity 121 and filter sample chamber 125, it is ensured that the sealing of accurate filter.

Embodiment 2, refering to Fig. 4.

The accurate filter 200 that this utility model embodiment is provided, it realizes principle and the technique effect of generation and reality Execute example 1 identical, for briefly describing, the not mentioned part of the present embodiment, refer to corresponding contents in embodiment 1.

The accurate filter 200 obtained by above-mentioned design the most substantially can be met the demand of usual industrialized production and make With, but in line with improving the objective of its function further, designer has carried out further improvement to this accurate filter 200.

In the present embodiment, filter element 230 number of this accurate filter 200 is arranged increases to 2.The horizontal stroke of filter element 230 number Cross section is preferably circular, naturally it is also possible to be triangle, square, pentagon and hexagon etc..See Fig. 4, accurate filter 200 Also include trip bolt 219.

Seeing Fig. 4, filter element 230 one end is connected fixing with the first dividing plate 211, and one end is connected fixing with second partition 213.The One dividing plate 211 is arranged on the bottom of housing 120, and second partition 213 is arranged on the upper end of housing 120.Second partition 213 is provided with Through hole 213a, through hole 213a inwall is provided with female thread；The female thread that through hole 213a inwall is arranged coordinates with trip bolt 219. Two perforates 112 it are provided with on first dividing plate 211.

Accurate filter 200 comprises two filter elements 230；Filter element 230 has peristome 131, core wall 134 and roof 236.Two Filter element 230 with through two perforates 112, is connected with fixing nut 128 respectively.

Roof 236, near the side of second partition 213, is provided with two fixing hole 236a, the hole depth of fixing hole 236a Thickness less than roof 236；The inwall of fixing hole 236a is provided with female thread.Trip bolt 219 passes on second partition 213 Through hole 213a, the screw-internal thread fit arranged with the inwall of fixing hole 236a.

During use, adding the number of filter element 230, the filter efficiency of accurate filter 200 i.e. can improve.

Meanwhile, adding filter element 230 and the number of perforate 112, under gravity, the first dividing plate 211 is easier to occur Deformation.By arranging fixing hole 236a at the upper surface of roof 236, and by trip bolt 219 through through hole 213a, fixing filter Core 230, the structure making accurate filter 200 is more firm.And filter element 230 is suspended from second partition by the use of trip bolt 219 On 213, disperse the gravity of a part of first dividing plate 211 carrying, relatively extend the service life of the first dividing plate 211, namely permissible Extend the service life of accurate filter 200.

The foregoing is only preferred implementation of the present utility model, be not limited to this utility model, for For those skilled in the art, this utility model can have various modifications and variations.All in spirit of the present utility model with former Within then, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (10)

1. an accurate filter, it is characterised in that described accurate filter includes housing, dividing plate and at least one filter element；Institute Stating in dividing plate is arranged on described housing and be separated into by described housing sample cavity and filter sample chamber, described sample cavity is provided with sample introduction Mouthful, described filter sample chamber is provided with outlet；Described dividing plate is provided with the perforate identical with described filter element quantity；Each described filter element has Having peristome, described filter element to be arranged at described filter sample chamber, described peristome is arranged at described perforate and connects with described sample cavity.

Accurate filter the most according to claim 1, it is characterised in that described peristome includes protuberance and connecting portion, Described connecting portion has connection opening within described filter element；Described protuberance props up described dividing plate, and described connecting portion stretches into institute State perforate and connect with described sample cavity.

Accurate filter the most according to claim 1, it is characterised in that the inwall of described perforate is provided with multiple mounting groove, The plurality of mounting groove, along inwall circumferentially disposed of described perforate, is provided with sealing ring in each described mounting groove.

Accurate filter the most according to claim 2, it is characterised in that described accurate filter also includes fixing nut, Described connecting portion is provided with external screw thread, and described connecting portion through described perforate and is connected with described fixing nut.

Accurate filter the most according to claim 2, it is characterised in that be provided with ring between described protuberance and described dividing plate Shape elastic sealing gasket.

Accurate filter the most according to claim 2, it is characterised in that the cross section of described filter element is circular, or triangle Shape, or square, or pentagon, or hexagon.

Accurate filter the most according to claim 1, it is characterised in that described dividing plate is metal partion (metp).

Accurate filter the most according to claim 2, it is characterised in that described accurate filter also includes filter mantle, institute Stating filter mantle and include cylindrical portion and filter screen, described filter screen is fixing with described cylindrical portion to be connected.

Accurate filter the most according to claim 8, it is characterised in that the inwall of described cylindrical portion is provided with female thread, Described connecting portion stretches out the part of described perforate and is provided with and the external screw thread of described screw-internal thread fit.

Accurate filter the most according to claim 8, it is characterised in that be provided with sewage draining exit, institute bottom described sample cavity State sewage outfalls setting and have the sealing lid for sealing described sewage draining exit.