CN201551927U

CN201551927U - Plate-frame air filter

Info

Publication number: CN201551927U
Application number: CN2009202584350U
Authority: CN
Inventors: 吴兴滨
Original assignee: Luoyang Yixing Petrochemical Electrical Appliance & Instrumentation Co Ltd
Current assignee: Luoyang Yixing Petrochemical Electrical Appliance & Instrumentation Co Ltd
Priority date: 2009-11-25
Filing date: 2009-11-25
Publication date: 2010-08-18
Anticipated expiration: 2019-11-25

Abstract

The utility model belongs to the air purification technology of fans and provides a plate-frame air filter which comprises an air inlet, a housing (3), a negative pressure door (2), a filtering device and an air outlet (13), wherein a plurality of air inlet holes are arranged on the periphery of the housing (3), the filtering device arranged in the housing consists of a filter element frame (8) and filter elements, a plurality of the filter elements are arranged for forming a circumferential closed structure, and a cavity in the filtering device is communicated with an air compressor through the air outlet (13) formed at the bottom of the housing; and the negative pressure door (2) is arranged on the filter element frame (8), one end of the negative pressure door (2) is communicated with the cavity in the filtering device, and the other end is communicated with an access road (12). The plate-frame air filter overcomes the defects of the setting part of the negative pressure door of the existing air filter and avoids the phenomena that the negative pressure door is affected by external environment so as to cause aging, reduce the sealing performance and lead rainwater to enter the internal closed cavity easily; and in addition, the plate-frame air filter improves the running reliability of the air compressor.

Description

The plate and frame air cleaner

Technical field

The utility model belongs to the air purifying process of blower fan, mainly proposes a kind of plate and frame air cleaner, is applicable to the high purification of enterprise's air compressor inlet airs such as petrochemical industry, iron and steel.

Background technology

Plate frame filter is high-power Air Compressor ingress filtering equipment.There is the easily aging situation of rainy day water inlet and door sealing in original plate and frame air cleaner in the design of negative pressure door.Outside air enters air compressor after filtering; dust constantly is accumulated on the filtering material in continuous running; because the negative pressure of the continuous minimizing air compressor of air inflow can constantly increase; the deficiency of air inflow causes the increase temperature rise of compressor load to improve, and easily causes the shutdown with the subsequent production process equipment of burning of compressor driving motor.Original plate and frame air cleaner negative pressure door be installed in surround by the filter core framework ring week enclosed construction the top, the communicate other end and filter ambient atmosphere of an end and enclosed cavity communicates.Communicate part owing to be subjected to the door sealing material that influences of weather and chemical plant local environment to be easier to wear out with the external world, and the bad weather rainwater enters the enclose inside cavity easily, and the normal operation of air compressor is caused a hidden trouble.

Summary of the invention

The purpose of this utility model is to propose a kind of plate and frame air cleaner, to overcome the existing in prior technology problem.

The utility model is finished the technical scheme that its invention task takes: a kind of plate and frame air cleaner, the air outlet slit that it mainly has air intake, housing, negative pressure door, filter and is communicated with air compressor; Have a plurality of air enter holes around the housing, be provided with access path and on housing, set the access path door, the filter that is provided with in the housing is made of filter core frame and a plurality of filter cores that are arranged on the filter core frame, filter top and case top are joined, bottom and housing bottom join constitutes upper and lower enclosed construction, filter core up and down multilayer arrange and every layer be a plurality of, constitute all enclosed constructions of ring, filter inside is cavity structure, and the internal cavities of filter is communicated with air compressor by the air outlet slit that housing bottom sets; The negative pressure door is arranged on the filter core frame, and an end of negative pressure door communicates with the internal cavities of filter, and the other end is connected with access path.

The plate and frame air cleaner that the utility model proposes has overcome original air cleaner negative pressure door the existing defective in position has been set, aging, sealing property reduces and rainwater easily enters the enclose inside cavity the phenomenon of avoiding that the negative pressure door is subjected to that external environment influence causes; Improved the air compressor reliability of operation.

Description of drawings

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is the A-A profile of Fig. 1.

Among the figure, 1, rainproof grid, 2, the negative pressure door, 3, housing, 4, the access path door, 5, platform, 6, support, 7, silencer, 8, the filter core frame, 9, outer filter core, 10 internal layer filter cores, 11, the pressure differential detection instrument, 12, access path, 13, air outlet slit.

The specific embodiment

The embodiment that provides is in conjunction with the accompanying drawings further specified its structure:

Shown in accompanying

drawing

1,2, the utility model mainly includes air intake, housing 3, negative pressure door 2, filter and air outlet slit 13; Housing 3 is arranged on the platform 5 and by support 6 and supports, and is provided with access path 12 and sets access path door 4 on housing 3, enters when overhauling in the housing in order to needs and uses.Be provided with the rainproof grid 1 of outside protrusion around the housing 3, set the air admission hole of shutter on the rainproof grid, constitute air from around enter structure of filter, air admission hole is positioned on the rainproof grid of outside protrusion, mainly be to prevent that rainwater from entering in the filter from air admission hole, air admission hole is designed to vertical bar hole, and has constant slope, enter to stop rainwater better.Negative pressure door 2 is positioned on the filter core frame 8 and is positioned at the top of filter core frame, and the negative pressure door is set to four, and an end of negative pressure door is communicated with the internal cavities of filter, and the other end is connected with access path 12.The negative pressure door belongs to the protection facility, and this is because filter core has certain resistance, and is many more with the filter core laying dust, resistance is big more, the negative pressure of filter core is big more; Negative pressure reaches certain value, and blower fan is had certain influence, and at this moment, the negative pressure door is opened automatically.The operation principle of negative pressure door and structure are not done too much explanation for the prior art that existing air cleaner generally adopts at this.

As shown in Figure 2, air filter is arranged in the housing, it is made up of rectangle filter core frame 8 and the filter core that is arranged on the filter core frame 8, has the different filter core of inside and outside two-layer pore size filter, promptly about the pore size filter 50 μ m of outer (one-level) filter core 9, about the aperture 1 μ m of internal layer (secondary) 10 filter cores.Filter core adopts the Nomex material.Have a plurality of on the filter core frame 8 in order to place the grid of filter core, grid repeatedly arrange up and down and every layer have a plurality of, a plurality of filter cores are placed on the rectangle that constitutes the sealing of ring week in the grid, and its top and case top are joined, the bottom joins with housing bottom, the structure that formation top, bottom are sealed.Filter inside is cavity structure, and promptly its inside is rectangular enclosure, and built-in negative pressure door 2 profiles are consistent with filter core, is installed in the internal cavities that constitutes with filter in the filter core frame and communicates.The air outlet slit 13 that housing bottom sets communicates with the internal cavities of filter, and air outlet slit 13 is communicated with silencer 7 and is communicated with air compressor by silencer 7.Pressure differential detection instrumentation table 11 is in order to detecting the negative pressure value at this place, and testing result is sent to operating room.Silencer 7 and pressure differential detection instrument 11 are the matured product of present widespread usage.

Claims

1. plate and frame air cleaner, the air outlet slit (13) that has air intake, housing (3), negative pressure door (2), filter and be communicated with air compressor; Have a plurality of air around the housing (3) and enter the hole, be provided with access path (12) and on housing (3), set access path door (4), the filter that is provided with in the housing is by filter core frame (8) and be arranged on a plurality of filter cores formations on the filter core frame, filter top and case top are joined, bottom and housing bottom join on the formation, the bottom enclosed construction, filter core up and down multilayer arrange and every layer be a plurality of, constitute all enclosed constructions of ring, filter inside is cavity structure, and the air outlet slit that the internal cavities of filter sets by housing bottom (13) is communicated with air compressor; It is characterized in that: described negative pressure door (2) is arranged on the filter core frame (8), and an end of negative pressure door (2) communicates with the internal cavities of filter, and the other end is connected with access path (12).