CN203598583U

CN203598583U - Simple filtering element used for pipeline system and valve inlet end

Info

Publication number: CN203598583U
Application number: CN201320458866.8U
Authority: CN
Inventors: 贾永建
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-30
Filing date: 2013-07-30
Publication date: 2014-05-21
Anticipated expiration: 2023-07-30

Abstract

The utility model discloses a simple filtering element used for a pipeline system and a valve inlet end. The simple filtering element is characterized by mainly comprising a filtering framework, a filtering net component and a pressing ring which are welded in a pressed manner; an external thread is arranged at the periphery of the filtering framework; a step through hole is formed in the center of the filtering framework; and the filtering net component is fixed at a step and is welded through the pressing ring in a pressed manner. The filtering element provided by the utility model is simple in structure, low in material cost and processing technology cost and convenient for on-line mounting and maintenance.

Description

Pipe-line system and valve inlet end Simple filter element used

Technical field

The utility model relate to coal mine pipeline system and valve interface place be keep medium the design of the Simple filter element installed and used of cleanliness factor, be specifically related to a kind of pipe-line system and valve inlet end Simple filter element used.

Background technology

Filter element is indispensable a kind of device on pumped (conveying) medium pipeline, is conventionally arranged on the entrance point of pipeline gas source inlet, valve or miscellaneous equipment, is used for eliminating the impurity in medium, with the normal use of the valve in protection system and equipment.When fluid enters after the filter core that is equipped with certain specification filter screen, its impurity is blocked, and clean medium is discharged by filter core outlet, in the time that needs clean, as long as dismountable filter core is taken out, after processing, reloads, and therefore, working service is very convenient.

At present, normally used in pumped (conveying) medium pipeline is cylindrical shape integral filters, sees Fig. 1.Mainly contain housing 1, filter element 2 and pressed joint 3 and form, complex structure, accounts for system space larger; Meanwhile, filter element adopts to be wrapped on a circular framework and is welded, and maintain and replace cost is higher.Therefore, the design of the filter element after improvement has overcome above shortcoming, sees Fig. 2.

Summary of the invention

The purpose of this utility model is to design the easy filter element of a kind of high and low pressure pipeline, reduces system cost and installing space, and easy maintenance and replacement is used.

For achieving the above object, the technical solution adopted in the utility model is as follows:

Pipe-line system of the present utility model and valve inlet end Simple filter element used, be welded by mainly containing filtration skeleton, net-filter assembly and trim ring compression, described filtration skeleton is arranged with external screw thread outward, and center is provided with ladder hole, net-filter assembly is fixed on ladder place, and compresses and weld with trim ring.Be provided with the flat recess for installing at the two ends of filtering original paper.

Described net-filter assembly is made up of two-layer supporting network and the fie screen between two-layer supporting network.

The size design of filter element of the present utility model is carried out flexible design according to pipeline drift diameter, pressure and filter efficiency at (comprising M screw thread, latus rectum DN, length H and net-filter assembly diameter d); The precision of filter screen, according to the cleanliness factor requirement of pipeline medium, selects different filtration specifications to design.The material of filter element is incompatible with the medium of runner, also will determine according to the size of pipeline pressure simultaneously.Such as: filter skeleton 1 and can select the metal material such as stainless steel, aluminium alloy, filter screen can be selected stainless steel, copper alloy etc., meanwhile, considers that the weldability of filter screen and skeleton is selected identical material as far as possible.

The utility model filter element is simple in structure, and carft of construction cost is lower, and online installation and maintenance more for convenience.

The utility model achievement can also be applied in the system pipeline of the Korrosionsmediums such as other gas cylinder, compressor, pump, cryogenic system, oxygen system, and dual-use market prospects are wide.

Accompanying drawing explanation

Fig. 1 is the structural representation of the filter in background technology.

Fig. 2 is the structural representation of filter element of the present utility model.

Fig. 3 is net-filter assembly structural representation.

Fig. 4 is filter element assembling schematic diagram.

The specific embodiment

Pipe-line system of the present utility model and valve inlet end Simple filter element used as shown in Figure 2, be welded by mainly containing filtration skeleton 4, net-filter assembly 5 and trim ring 6 compressions, described filtration skeleton is arranged with external screw thread outward, center is provided with ladder hole, net-filter assembly is fixed on ladder place, and compresses and weld with trim ring.Be provided with the flat recess for installing at the two ends of filtering original paper.

Described net-filter assembly as shown in Figure 3, is made up of two-layer supporting network 5-1 and the fie screen 5-2 between two-layer supporting network.

The welding technique of filter element of the present utility model is as follows:

First, the filtration skeleton 4 of filter element, trim ring 6 are cleaned up with gasoline, alcohol successively.Secondly, the net-filter assembly having cleaned up 5 is put into the endoporus bottom spot welding (concrete grammar: first spot welding supporting network bottom, then put fine-structure mesh and upper end supporting network, more evenly spot welding) of filtering skeleton 4.The 3rd, trim ring compresses three-layer network, and firm by laser weld, and solder joint is no less than 10 points, and postwelding checks solder joint, and solder joint requires Glabrous thorn, nothing to splash, and prevents that any impurity from dropping on the net in process.Finally, filter element is carried out to Ultrasonic Cleaning with acetone clean, after passed examination, be packaged into bag and treat that pipeline installs and uses.

Screen pack of the present utility model to add technique as follows:

First, pincers worker is cut into four directions by filter screen, copper sheet or aluminium skin respectively, puts one deck copper sheet or aluminium skin between filter screen, and neat staggered is superimposed, and steps up with clean aluminium sheet.Secondly, carry out line cutting according to the dimension D of filter screen, cutting current can not be excessive.The 3rd, the filter screen after cutting is put into clean gasoline and is soaked, and gently filter screen is pushed aside with two fingers simultaneously.The 4th, the filter screen of pushing aside is put into another clean gasoline container and is rocked 5 minutes, then rocks and clean 5 minutes with clean alcohol, and dries up.Finally, pack element erection welding to be filtered in clean polybag into.

Fig. 4 is shown in by the mounting structure schematic diagram of filter element of the present utility model, and filter element mainly contains pipeline or Valve joint 7, O-ring seals or cushion film 8 and filter element 9 while installation and forms.Its operation principle: the hickey place that filter element is matched with instrument spinning in pipe road or Valve joint by external screw thread and flat recess, and O-ring seals or cushion film 8 are compressed, in the time that medium enters from import, the filter screen by filter element flows out (diagram arrow be MEDIA FLOW to) from outlet.The particulate that is greater than the filtering accuracy of filter element is kept off outside by filter screen, plays the effect of separation, guarantees the cleannes of system downstream medium.

When the achievement of filter element of the present utility model is promoted the use of, when filter element installation, mainly contain pipeline or Valve joint, smart filter element; Coarse filtration element.According to the same interface of system requirements, plural filter element can be installed, the accuracy specification difference of each filter element, carries out respectively the filtration more than two-stage such as coarse filtration and essence filtration, the life-span of improving cleanliness factor and the smart filter element of runner medium.When filter element periodic maintenance, only need its back-out be carried out ressembling after repair and replacement again with instrument.(filter element size directly more renews when little, only needs car to fall solder joint filter screen for larger-size filter element, ressembles welding use by trim ring with after filtering skeleton reparation with new net-filter assembly.)

Claims

1. a pipe-line system and valve inlet end Simple filter element used, it is characterized in that: this filtration original paper is welded by mainly containing filtration skeleton, net-filter assembly and trim ring compression, described filtration skeleton is arranged with external screw thread outward, center is provided with ladder hole, net-filter assembly is fixed on ladder place, and compresses and weld with trim ring.

2. pipe-line system according to claim 1 and valve inlet end Simple filter element used, is characterized in that: described net-filter assembly is made up of two-layer supporting network and the fie screen between two-layer supporting network.