CN206777972U

CN206777972U - A kind of overlay film filtration core

Info

Publication number: CN206777972U
Application number: CN201720553249.4U
Authority: CN
Inventors: 云春雨; 姚长春
Original assignee: SHIJIAZHUANG JINTAI PURIFYING EQUIPMENT Co Ltd
Current assignee: SHIJIAZHUANG JINTAI PURIFYING EQUIPMENT Co Ltd
Priority date: 2017-05-18
Filing date: 2017-05-18
Publication date: 2017-12-22
Anticipated expiration: 2027-05-18

Abstract

A kind of overlay film filtration core is the utility model is related to, its key technology is：It includes the cylindric filtering support substrate using the metal powder sintered formation of coarse granule, is additionally included in after the outer surface spraying fine-grained metals powder of the filtering support substrate and forms surface filtration layer by vacuum-sintering.The utility model is simple in construction, due to there is provided support substrate is filtered, making the structural strength of whole filter core increase, while disclosure satisfy that filtering accuracy, filter efficiency is higher, has good market prospects.

Description

A kind of overlay film filtration core

Technical field

Sintered metal product technical field is the utility model is related to, specially a kind of overlay film filtration core.

Background technology

At present, the filtration fraction of the metal dust filter element used in industrial production is all symmetrical structure, filtering essence Degree and filter efficiency are poor, and using this filter element, its flow is too low or does not reach the requirement of fine filtering and causes to produce The efficiency of journey reduces, cost increase.At present, requirement of the whole filter industry to filtering material is all to filtering as big as possible Flow and filtering accuracy as high as possible development, while filter will have the filtration resistance of very little in itself, so as to reach reduction energy The purpose of consumption.

In addition, in order that metal powder sintered pipe filter core can be connected installation with filter, at present using metal dust The powder sintered filter core of unitary metallic that sintered pipes are sintered together with dense metal interface, there is interface and is easily seized from body in it Go out, come off, many shortcomings such as easy gas leakage；Further, in process of production, occur changing using pressure or during operational error, Easily rupture metal powder sintered pipe filter core, if a metal powder sintered pipe filter core ruptures, filtrate will be caused to meet with It is contaminated, it is necessary to filter again, wasting substantial amounts of manpower and man-hour, therefore, how increasing metal powder sintered pipe filter core Bearing capacity is also a urgent problem.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of constitutionally stable overlay film filtration core.

To solve the above problems, technical solution adopted in the utility model is：

A kind of overlay film filtration core, its key technology are：It includes the cylinder using the metal powder sintered formation of coarse granule Shape filters support substrate, is burnt after being additionally included in the outer surface spraying fine-grained metals powder of the filtering support substrate by high temperature Knot forms surface filtration layer.

As further improvement of the utility model, burnt at the mouth of pipe of the filtering support substrate using fine-grained metals powder Knot forms non-filtered area.

As further improvement of the utility model, the filter core is open at one end or open at both ends structure.

As further improvement of the utility model, the coarse granule metal dust is the metal dust of the mesh of particle diameter≤200, The fine-grained metals powder is the metal dust of the mesh of particle diameter >=300.

As further improvement of the utility model, support frame is provided with the cylindric filtering support substrate, it is described Support frame includes circumferentially equally distributed more axial brace rods and the radial support ring of multiple vertical distributions, the axially branch The outer wall for supportting muscle and the radial support ring welds.

As further improvement of the utility model, the cross section of the axial brace rod is in isosceles triangle, its summit Place contacts with the cylindric filtering support substrate inwall.

It is using beneficial effect caused by above-mentioned technical proposal：

The utility model is simple in construction, due to there is provided filtering support substrate, making the structural strength of whole filter core increase, together When disclosure satisfy that filtering accuracy, filter efficiency is higher, has good market prospects.By by the mouth of pipe for filtering support substrate Non-filtered area is formed using fine-grained metals powder sintering, because non-filtered area is formed using fine-grained metals powder sintering, therefore had There is preferable structural strength, can be good at the connection mouth of pipe and be fixedly connected, can be good at overcoming interface easily to seize from body Go out, come off, easy gas leakage the shortcomings of.By setting support frame, support can be played a part of in filtering support substrate, improve filter The bearing capacity of core, grow its service life.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the cross section structure diagram of the utility model embodiment 1.

Fig. 2 is the overlooking the structure diagram of the utility model embodiment 1.

Fig. 3 is the partial enlargement structural representation in A portions in Fig. 1.

Fig. 4 is the cross section structure diagram of the utility model embodiment 2.

Fig. 5 is the cross section structure diagram of the utility model embodiment 3.

Fig. 6 is the structural representation of support frame.

Fig. 7 is the overlooking the structure diagram of support frame.

Wherein：1 filtering support substrate, the non-filtered areas of 1-1,2 surface filtration floor, 3 support frames, 3-1 axial directions brace rod, 3-2 Radial support ring.

Embodiment

To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and specific embodiment Clear, complete description is carried out to utility model.

Embodiment 1

A kind of overlay film filtration core as Figure 1-3, it includes the cylindrical shape using the metal powder sintered formation of coarse granule Support substrate 1 is filtered, is burnt after being additionally included in the outer surface spraying fine-grained metals powder of the filtering support substrate 1 by vacuum Knot forms surface filtration layer 2, and the cylindric filtering support substrate 1 is metal powder sintered using the coarse granule of the mesh of particle diameter≤100, The surface filtration layer 2 using the mesh of particle diameter >=300 fine-grained metals powder.Described metal dust be elemental metals powder or Various alloyed metal powders.As shown in figure 3, formed at the mouth of pipe of the filtering support substrate 1 using fine-grained metals powder sintering The relatively strong non-filtered area 1-1 of structural strength, the non-filtered area at the mouth of pipe are used to be fixedly connected with metal pipe interface, can be good at gram Take interface easily uncover, come off from body, easy gas leakage the shortcomings of.

Embodiment 2

The filter core is open at one end or open at both ends structure.As shown in figure 4, filter core is closed for the open at one end other end, The ball crown type end enclosure structure that concrete structure is formed in one.

Embodiment 3

In order to strengthen the bearing capacity of filter core, as further improvement of the utility model, the cylindric filtering support It is provided with support frame 3 in matrix 1, support frame as described above 3 includes circumferentially equally distributed more axial brace rod 3-1 and multiple hung down The radial support ring 3-2, the axial brace rod 3-1 and the radial support ring 3-2 that are directly distributed outer wall welding.More axial directions Brace rod 3-1 and the radial support ring 3-2 of multiple vertical distributions fix to form a cylindric cage body, for supporting filter core.

The cross section of the axial brace rod 3-1 is in isosceles triangle, its apex and the cylindric filtering branch support group The inwall of body 1 contacts, and whole axial brace rod 3-1 is in triangular prism shaped, one of rib and the cylindric filtering inwall line of support substrate 1 Contact, its contact area is smaller, can farthest avoid influenceing filter efficiency, while and can enough plays in filtering support substrate The effect of support, it can avoid to a certain extent in use, pressure occurs changing or during operational error, and appearance causes to filter Core ruptures, and improves the bearing capacity of filter core, grows its service life.

Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that： It can still be modified to the technical scheme described in previous embodiment, or which part technical characteristic is equal Replace；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment technical scheme Spirit and scope.

Claims

A kind of 1. overlay film filtration core, it is characterised in that：It includes the cylindric filtering using the metal powder sintered formation of coarse granule Support substrate (1), lead to after being additionally included in the outer surface for filtering support substrate (1) or inner surface spraying fine-grained metals powder Cross high temperature sintering and form surface filtration layer (2).
2. overlay film filtration core according to claim 1, it is characterised in that：Adopted at the mouth of pipe of the filtering support substrate (1) Non-filtered area (1-1) is formed with fine-grained metals powder sintering.
3. overlay film filtration core according to claim 1, it is characterised in that：The filter core is open at one end or open at both ends knot Structure.
4. according to the overlay film filtration core described in claim any one of 1-3, it is characterised in that：The coarse granule metal dust is grain The metal dust of the mesh of footpath≤200, the fine-grained metals powder are the metal dust of the mesh of particle diameter >=300.
5. according to the overlay film filtration core described in claim any one of 1-3, it is characterised in that：The cylindric filtering support substrate (1) it is provided with support frame (3) in, support frame as described above (3) includes circumferentially equally distributed more axial brace rods (3-1) and more The radial support ring (3-2) of individual vertical distribution, the outer wall of the axial brace rod (3-1) and the radial support ring (3-2) weld Connect.
6. overlay film filtration core according to claim 5, it is characterised in that：The cross section of the axial brace rod (3-1) is in Isosceles triangle, its apex contact with described cylindric filtering support substrate (1) inwall.