CN2564224Y

CN2564224Y - Filtering element for filter

Info

Publication number: CN2564224Y
Application number: CN 02246509
Authority: CN
Inventors: 齐金和
Original assignee: ZHONGHANG OIL FILTERING EQUIPMENT CO Ltd GUAN COUNTY
Current assignee: ZHONGHANG OIL FILTERING EQUIPMENT CO Ltd GUAN COUNTY
Priority date: 2002-08-21
Filing date: 2002-08-21
Publication date: 2003-08-06
Anticipated expiration: 2012-08-21

Abstract

The utility model relates to an industrial filter element whose filter precision achieves the micron dimension. A filter layer which is coiled to be cylindrical is arranged between an internal central pipe bracket and an external central pipe bracket of the filter element of the filter. The internal and the external central pipe brackets are cylinders on which a plurality of holes are densely distributed. An accumulative layer which accumulates the water contained in the oil liquid is arranged on the outer side of the external central pipe. The external side of the collecting layer is a protective layer. Both ends of the filter element are buckled with end caps. A glass fiber filter paper layer whose filter precision is micron dimension is adopted as the substrate of the filter layer. The protective is composed of a composite nonwoven cloth and a protective net. The substrate of the accumulative layer is a glass fiber mat. A nonwoven cloth is arranged on the inner side of the glass fiber mat. The outer side of the glass fiber mat is bundled on the external central pipe and a cotton sleeve is nested on the surface of the glass fiber mat. The utility model is applicable to the working conditions including high alkali concentration, high work pressure and high-temperature oil liquid, guaranteeing no deformation and no breakdown of the filter materials.

Description

Filter element

Technical field

The utility model relates to a kind of filtration that is used for fluid liquid, particularly relates to a kind of industrial filter element.

Background technology

Existing filter element has a lot of schemes.For example, Chinese patent 00110305.9 short-staple filter material and filter core, 89108986.1 synthetic fiber filter materials and 96107186.9 filter cores.These filter filtering accuracies are not high, adopt the filter core of this material of 80～120 order fine powders to be difficult to the micron-sized impurity of filtering in the scheme of Chinese patent 00110305.9, ubiquity is alkaline-resisting, heatproof, withstand voltage properties deficiency, high temperature, high pressure, high dense contain to use in the alkali fluid destroyed the forfeiture filtering function very soon.

Summary of the invention

The purpose of this utility model is to propose the filter element that a kind of filtering accuracy reaches micron dimension.

Filter element of the present utility model is to realize like this.In filter element, be filled with the filter course that is rolled into cartridge type between the exterior central tube support, interior exterior central tube for the perforate of gathering or stainless steel, or the alkaline-resisting processing through the surface (plastic-blasting, plating, japanning) metal or plastic cylinder, pleated or the phozy of filter course, the exterior central tube outside be can coalescent fluid in the coalescent layer used of moisture content, the coalescent layer outside is protective layer, the filter core two ends are buckled with end cap, it is characterized in that: described filter course is a matrix with filtering accuracy micron order glass fiber filter paper layer, the protective layer that inside and outside compound nonwoven cloth, nylon (polyester) net are formed; Described water droplets coalescence layer is a matrix with the glass mat, the inboard lining of glass mat nonwoven, and the outside is bundled on the exterior central tube with glass fiber plastic-blasting net, outermost cover acrylic fibers (terylene, polypropylene fibre) cotton-padded covering.

Filter element of the present utility model can contain in alkali concn, high workload pressure, the high-temperature oil liquid at height works, and filter material is indeformable, does not puncture.

Description of drawings

Fig. 1 filter element partly cuts open schematic diagram;

Fig. 2 filter element cross sectional representation.

The specific embodiment

Below in conjunction with accompanying drawing filter element of the present utility model is described in detail.Fig. 1 and Fig. 2 have provided the structural representation of filter element of the present utility model.Filter element of the present utility model is the support of filter core with inner central tube 9 and exterior central tube 6, between inner central tube 9 and exterior central tube 6, be filled with the filter course a that is rolled into cartridge type, inner central tube 9, exterior central tube 6 is the metal or the plastic cylinder of the perforate of gathering, pleated or the phozy of filter course a, there is the water droplets coalescence layer b that moisture content is used in the coalescent filtrate in exterior central tube 6 outsides, the coalescent layer b outside is a protective layer, bottom end cover 1 and upper end cover 13 are with spiral-lock about the filter element, with alkaline-resisting gluing the connecing of heatproof, it is characterized in that: described filter course a is a matrix with filtering accuracy micron order glass fiber filter paper layer 10, filter paper layer 10 1 side complex protection nets 7, nonwoven 8, filter paper layer 10 opposite side compound nonwoven cloths 11, catch net 12, nonwoven 8 is formed the inner protective layer of filter paper layer 10, nonwoven 11, catch net 12 is formed the external protection of filter paper layer 10; Described water droplets coalescence layer b is matrix with ultra-fine fibre glass carpet veneer 4; glass fibre carpet veneer 4 has liner nonwoven 5; be laid in the tube wall of exterior central tube 6; there is binding filter screen 3 in described glass fibre carpet veneer 4 outsides; the protective layer in glass fibre carpet veneer 4 outsides is glass fiber plastic-blasting or stainless catch net 3, puts cotton-padded covering 2 again.

The inner central tube 9 of filter element of the present utility model, exterior central tube 6, bottom end cover 1, upper end cover 13, glass fiber filter paper layer 10,

catch net

7,12, nonwoven 5,8,11, glass fibre carpet veneer 4, binding filter screen 3 and cotton-padded covering 2 all adopt alkaline-resisting material;

catch net

7,12, binding filter screen 3, inner central tube 9, exterior central tube 6, bottom end cover 1 and upper end cover 13 or select stainless steel material for use, or select polyester material for use.

During filter core work, the fluid of filter element inner chamber enters the perforate of inner central tube 9 tube walls, through filtering layer a, impurity is stopped in filter course a inboard in the fluid, and filtrate enters water droplets coalescence layer b again through the perforate of exterior central tube 6 tube walls, the free globule can change from small to big through the water droplets coalescence layer b of filter core the time in the filtrate, form large water drop, large water drop can be come off by the filter core outer surface, is deposited in the bottom of filter.

Provide below the utility model filter element specific embodiment.The high h800mm of the stem stem of the filter element of this practical embodiment, the diameter of phi 1 of inner central tube 9 is 89mm, the diameter of phi 2 of exterior central tube 6 is 131mm, the tube wall of inner central tube 9 and exterior central tube 6 is 1mm, the diameter of phi 3 of bottom end cover 1 and upper end cover 13 is 152mm, and glass fiber filter paper layer 10 is thick to be 2～7mm, and glass fibre carpet veneer 4 is the material affine with water, thick is 10, and cotton-padded covering 2 can adopt acrylic fibers, terylene or polypropylene fibre material.

Filter element of the present utility model can be worked in the fluid that contains alkali concn 50%, and filtering accuracy is 1～3 μ m, at pressure 10kgf/cm ², work under 85 ℃ of conditions, filter material is indeformable, does not puncture.

Claims

1. filter element, including with inner central tube (9) and exterior central tube (6) is the support of filter core, between inner central tube (9) and exterior central tube (6), be filled with the filter course (a) that is rolled into cartridge type, inner central tube (9), exterior central tube (6) is the metal or the plastic cylinder of the perforate of gathering, there is water droplets coalescence layer (b) in exterior central tube (6) outside, coalescent layer (b) outside is a protective layer, bottom end cover (1) and upper end cover (13) are with spiral-lock about the filter element, with alkaline-resisting gluing the connecing of heatproof, it is characterized in that: described filter course (a) is a matrix with the thick 2～7mm of being of filtering accuracy micron order glass fiber filter paper layer (10), filter paper layer (10) one side complex protection nets (7), nonwoven (8), filter paper layer (10) opposite side compound nonwoven cloth (11), catch net (12); Described water droplets coalescence layer (b) is a matrix with glass fibre carpet veneer (4); glass fibre carpet veneer (4) has liner nonwoven (5); be laid in the tube wall of exterior central tube (6); the protective layer in described glass fibre carpet veneer (4) outside is glass fiber plastic-blasting or stainless catch net (3), puts cotton-padded covering (2) again.

2. filter element according to claim 1; it is characterized in that: described inner central tube (9), exterior central tube (6), bottom end cover (1), upper end cover (13), glass fiber filter paper layer (10), catch net (7), (12), nonwoven (5), (8), (11), glass fibre carpet veneer (4), binding filter screen (3) and cotton-padded covering (2) all adopt alkaline-resisting material; catch net (7), (12), binding filter screen (3), inner central tube (9), exterior central tube (6), bottom end cover (1) and upper end cover (13) or select stainless steel material for use, or select polyester material for use.

3. filter element according to claim 1 is characterized in that: the pleating reel of described filter course (a) is shaped.

4. filter element according to claim 1 is characterized in that: the end cap (1) at described filter element two ends, (13) are with alkaline-resisting gluing the connecing of heatproof.