CN201823419U

CN201823419U - Gas filter

Info

Publication number: CN201823419U
Application number: CN2010205613540U
Authority: CN
Inventors: 周国庆
Original assignee: SHANGHAI QINWEI PETROCHEMICAL EQUIPMENT CO Ltd
Current assignee: SHANGHAI QINWEI PETROCHEMICAL EQUIPMENT CO Ltd
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2011-05-11
Anticipated expiration: 2020-10-14

Abstract

A gas filter relates to the technical field of filter devices. The technical problem to be solved is to increase filtering effect, prolong the service life of the filter and reduce maintenance cost. The gas filter comprises a cylinder and a filter element perforated plate, the cylinder is provided with three ventilation holes, the ventilation holes include a gas outlet arranged at the upper end of the cylinder, a gas inlet arranged on the wall of the cylinder and a sewage outlet arranged at the lower end of the cylinder, the filter element perforated plate is fixed inside the cylinder and positioned above the gas inlet, and the periphery of the filter element perforated plate is in airtight joint with the inner wall of the cylinder. The gas filter is characterized in that the face of the filter element perforated plate is provided with a plurality of through holes, each through hole contains a tubular filter element in inserted manner, one end of each tubular filter element is closed, the wall of each through hole is in close joint with the outer peripheral face of the corresponding filter element disposed in the through hole, and the surface of each filter element is in the form of a corrugated pipe. The gas filter which is large in filter area is capable of avoiding blockage of field process pipelines, thereby frequency of stoppage for element replacement and maintenance for pipe fittings is reduced, and daily operational cost is reduced.

Description

A kind of pneumatic filter

Technical field

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

Background technology

Pneumatic filter is widely used in fields such as oil, chemical industry, metallurgy, papermaking, medicine, food, mining, electric power, such as the filtration, purification of gases such as carbon dioxide, oil gas, hydrogen, hydrogen sulfide in the petrochemical industry industry.Gas filtration is a kind of advanced person, efficient and easy-operating filtering technique.

The inner chamber of existing pneumatic filter all is separated into two parts up and down, its epicoele is provided with the gas outlet, cavity of resorption is provided with air inlet and sewage draining exit, and filter core is installed in the cavity of resorption, and the upper end of filter core is communicated with epicoele, earlier sewage draining exit is sealed before the filtering gas, then gas to be filtered is continued to introduce cavity of resorption from air inlet, along with the rising of cavity of resorption internal gas pressure, the gas in the cavity of resorption enters filter core, flow into epicoele behind the media filtration in filter core, and then discharge by the gas outlet; Opening sewage draining exit after gas filtration finishes discharges dirt.Because the filter core of existing pneumatic filter all is a straight tube-like, its filtering surface area is less, therefore existing pneumatic filter filter effect when the filter amount is big is relatively poor, cause on-the-spot process pipe to stop up easily, change the number of times of filter element, shut-down (breakdown) mainteance thereby increase, life cycle is shorter, day-to-day operation maintenance cost height.

The utility model content

At the defective that exists in the above-mentioned prior art, it is big that technical problem to be solved in the utility model provides a kind of filtering surface area, good filtration effect, can effectively avoid on-the-spot process pipe to stop up, reduce the pipe fitting shut-down and change the number of times of core, maintenance, and life cycle is long, the pneumatic filter that maintenance cost is low.

In order to solve the problems of the technologies described above, the technical scheme of employing is: a kind of pneumatic filter comprises cylindrical shell and filter core card; Described cylindrical shell is provided with three blow vents, is respectively the gas outlet of being located at the cylindrical shell upper end, is located at the air inlet on the barrel, is located at the sewage draining exit of cylindrical shell lower end; Described filter core card is fixed in the cylindrical shell, and be positioned at the top of air inlet, its periphery and cylinder inboard wall airtight joint, it is characterized in that: the plate face of described filter core card is provided with a plurality of through holes, all be inserted with the long tubular element of end sealing in each through hole, and the equal interior filter core outer peripheral face fluid-tight engagement with placing this through hole of the hole wall of each through hole.

Described cartridge surface is corrugated tube shape.

The pneumatic filter that the utility model provides, because built-in a plurality of filter cores, and described cartridge surface is corrugated tube shape, so the filtering surface area still can be kept when the filter amount is big and filter state, good filtration effect preferably much larger than single straight tubulose filter core; Can effectively avoid on-the-spot process pipe to stop up, reduce the number of times of filter renew cartridge, shut-down (breakdown) mainteance, life cycle is long, and maintenance cost is low.

Description of drawings

Fig. 1 is the main pseudosection of the utility model pneumatic filter;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the vertical view of filter core card among Fig. 1.

The specific embodiment

Below in conjunction with description of drawings the utility model is described in further detail, but described embodiment is not limited to the utility model.

Shown in Fig. 1～3, a kind of pneumatic filter that the utility model embodiment is provided comprises cylindrical shell 1 and filter core card 2; Described cylindrical shell 1 is provided with three blow vents, is respectively the gas outlet 11 of being located at the cylindrical shell upper end, is located at air inlet 12 and the sewage draining exit 13 of being located at the cylindrical shell lower end on the barrel; Described filter core card 2 is fixed in the cylindrical shell 1, and be positioned at the top of air inlet 12, its periphery and cylinder inboard wall airtight joint, it is characterized in that: described filter core card 2 plate faces are provided with a plurality of through holes 21, all be inserted with the long tubular element 3 of end sealing in each through hole 21, and the equal outer peripheral face fluid-tight engagement of interior filter core 3 with placing this through hole 21 of the hole wall of each through hole 21.

Described filter core 3 surfaces are corrugated tube shape.

Among the utility model embodiment, the bottom of described cylindrical shell 1 is provided with a support 4, and the top of cylindrical shell 1 is provided with lid and cylindrical shell 1 adpting flange 5.

The utility model embodiment is before filtering gas during use, sewage draining exit 13 with the cylindrical shell lower end seals earlier, then gas to be filtered is continued to introduce cylindrical shell 1 from the air inlet 12 on the barrel, rising along with cylindrical shell 1 internal gas pressure, gas in the cylindrical shell 1 enters in the filter core 3 by the filtering surface of filter core 3, filter back gas and enter the epicoele of pneumatic filter, and then pass through gas outlet 11 discharges of cylindrical shell 1 upper end from the through hole 21 on filter core card 2 panels.The filtering surface of filter core 3 is with (can be on demand greater than 5 microns in the gas, adopt the filter core of different filtering accuracies) impurity intercept, along with the aggregation of holding back on the filter core 3 increases, pressure reduction increases gradually between air inlet 12 and the gas outlet 11, when pressure reduction reaches greater than 0.06MPa, the staff opens adpting flange 5 filter core 3 taking-up replacings is got final product, and the fine particle dirt of holding back on the filter core 3 in the filtration is discharged by the sewage draining exit 13 of cylindrical shell 1 lower end.

Claims

1. a pneumatic filter comprises cylindrical shell and filter core card; Described cylindrical shell is provided with three blow vents, is respectively the gas outlet of being located at the cylindrical shell upper end, is located at the air inlet on the barrel, is located at the sewage draining exit of cylindrical shell lower end; Described filter core card is fixed in the cylindrical shell, and be positioned at the top of air inlet, its periphery and cylinder inboard wall airtight joint, it is characterized in that: the plate face of described filter core card is provided with a plurality of through holes, all be inserted with the long tubular element of end sealing in each through hole, and the equal interior filter core outer peripheral face fluid-tight engagement with placing this through hole of the hole wall of each through hole.

2. according to the described a kind of pneumatic filter of claim 1, it is characterized in that: described cartridge surface is corrugated tube shape.