CN201088895Y

CN201088895Y - Compressed air filter

Info

Publication number: CN201088895Y
Application number: CNU2007200743480U
Authority: CN
Inventors: 于海涛; 宋和国
Original assignee: SHANGHAI GASPURE DEVELOPMENT Co Ltd
Current assignee: SHANGHAI GASPURE DEVELOPMENT Co Ltd
Priority date: 2007-09-03
Filing date: 2007-09-03
Publication date: 2008-07-23
Anticipated expiration: 2017-09-03

Abstract

A compressed air filter is provided, which comprises a casing and a filter core in the casing; wherein, the casing consists of an upper seal head, a barrel and a lower seal head in snapping connection. A streamline air input elbow is disposed on the filter core. The filter core comprises a support with an inner ring perforated plate, an outer ring perforated plate, an upper closing plate and a lower closing plate, a non-woven fabric filtering layer, a pleating distributed pyrex fiberglass filtering layer and a needle felt liquid collecting layer arranged orderly between the outer ring perforated plate and the inner ring perforated plate; a draining valve is positioned in the casing and a drainpipe of a draining valve extends out from the bottom of the lower seal head and is connected through a seal element and a nut. A plurality of compressed air filters can be connected in series in the air channel. The utility model adopts the streamline air input elbow, which can reduce the pressure loss greatly; the filter core adopts the pleating distributed pyrex fiberglass filtering layer and the needle felt liquid collecting layer, so that the filter efficiency is promoted greatly, the pressure drop is low and the service life is long; the upper and lower seal heads are in snapping connection with the barrel, so that the assembly and maintenance are rapid and convenient.

Description

Compressed-air filter

Technical field

The utility model relates to a kind of air cleaner, particularly relates to a kind of compressed-air filter.

Background technology

Compressed-air filter generally is made of shell, filter core, and shell is connected and composed by cylindrical shell, upper cover (upper end cover), has air inlet, gas outlet on the upper cover, and filter core is cased, and the filter core air inlet pipe is arranged on it.The design feature of traditional compressed-air filter and exist shortcoming to be: 1, the filter core air inlet pipe is a perpendicular type, and the pressure loss is big, and filter efficiency is low, and energy loss and maintenance cost are big; 2, filter bottom is an overall structure, and maintaining is carried out in the inconvenience mounting or dismounting; 3, upper cover is threaded with being connected to of cylindrical shell or flange is connected, and screw thread is fragile, attended operation inconvenience; 4, filter core adopts the foam filter course, and water imbibition and oil absorption are relatively poor, can not be high temperature resistant, and service life is short, and filter efficiency is low; The acquisition layer of filter core adopts sponge layer, and imbibition reduces filter area, produces higher flow resistance and causes breaking, and reduces filter efficiency and function greatly, and its chemistry and heat endurance are relatively poor in addition; The filter element filtering layer adopts wound form, and filter area is little, causes that filter efficiency is low, service life is short, pressure drop is high, and dust containing capacity is little, the operating cost height.

Summary of the invention

The purpose of this utility model provides that a kind of pressure loss is little, filter efficiency is high, long service life, be convenient to the compressed-air filter that installing/dismounting carries out maintaining.

The technical solution of the utility model is:

A kind of compressed-air filter, comprise shell, cased filter core, shell comprises cylindrical shell, upper cover, the upper end of upper cover and cylindrical shell removably connects, have air inlet, gas outlet on the upper cover, support that shrouding constituted about filter core was reached by the inner and outer ring punched-plate and the filter material layer that is filled between the inner and outer ring punched-plate constitute, be connected with the filter core air inlet pipe on the filter core upper sealing plate, described filter core air inlet pipe is streamlined air inlet elbow, the air inlet of air inlet elbow is fixed with plugboard, the bottom of air inlet elbow is fixed with a pair of shell fragment card, and shell fragment card outer end has boss; Described upper cover inner chamber has a bar-shaped trough at the air inlet place, plugboard inserts in the bar-shaped trough air inlet is communicated with the air inlet elbow, also have on the upper cover when plugboard peg graft put in place after with the position and the corresponding supported hole of shape of described boss, the elastic reaction of shell fragment card makes in the described boss insertion supported hole; Described shell also comprises the low head that removably connects with the cylindrical shell lower end; Also have a draining valve in the described shell, the drainpipe of draining valve stretches out from the low head bottom and connects by seal, nut.

The filter material layer of described filter core is nonwoven filter course, pyrex fibrous filter layer, pin felt type acquisition layer at the outer shroud punched-plate to arranging successively between the interior ring punched-plate.

Described pyrex fibrous filter layer adopts the pleated formula to arrange.

Have annular groove and boss at interval in the described cylindrical shell lower end on the circle, have annular groove and boss at interval on the cylindrical of described low head upper end, screw to enter after insert between the other side's boss and be connected in the other side's annular groove by having boss respectively separately between cylindrical shell and the low head, between the interior circle of low head cylindrical and cylindrical shell seal is installed; Described upper cover is identical with the syndeton between cylindrical shell and the low head with syndeton between the cylindrical shell.

Described air cleaner can a plurality ofly be in turn connected to form series connection by air inlet and gas outlet and insert in the air duct.

The utility model filter core air inlet pipe adopts streamlined air inlet elbow, can reduce the pressure loss greatly, and hydrophobicity borosilicate fiber filtering layer, pin felt type acquisition layer that filter core adopts the pleated formula to distribute improve filter efficiency, low, the long service life of pressure drop greatly; Shell adopts detachable low head assembling form, is convenient to the filter dismounting, safeguards and maintenance; Adopt the syndeton of the snap joint of buckle-type between between upper and lower end socket and the cylindrical shell, make installation and maintenance efficient and convenient.

Description of drawings

Fig. 1 is the utility model structure cutaway view, and filter core and draining valve are not done to analyse and observe among the figure.

Fig. 2 is that Fig. 1 is along the A-A cutaway view.

Fig. 3 is filter core and connected air inlet elbow among Fig. 1, plugboard, shell fragment card structure schematic diagram.

Fig. 4 is the left view of Fig. 3.

Fig. 5 be Fig. 3 along the C-C cutaway view, express filter element filtering layer structure.

Fig. 6 is Fig. 1 middle cylinder body substructure schematic diagram, is that Fig. 7 is along the E-E cutaway view.

Fig. 7 is that Fig. 6 is along the D-D cutaway view.

Fig. 8 is the low head structural representation, is that Fig. 9 is along the F-F cutaway view.

Fig. 9 is the vertical view of Fig. 8.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, compressed-air filter comprises shell, cased filter core 4, shell reaches the upper cover 2, the low head 3 that removably connect with cylindrical shell 1 upper and lower end by cylindrical shell 1 and constitutes, and has air inlet 12, gas outlet 13 on the upper cover 2.Support that shrouding constituted about filter core 4 was reached by the inner and outer ring punched-plate and the filter material layer that is filled between the inner and outer ring punched-plate constitute, be fixedly connected with the filter core air inlet pipe that adopts streamlined air inlet elbow 5 on the upper sealing plate of filter core 4, the air inlet of air inlet elbow 5 is fixedly connected with square plugboard 6, be fixedly connected with the shell fragment card 7 of a pair of symmetric arrangement on the air inlet elbow 5 bottom peripheries, shell fragment card 7 outer ends have boss 7a; Upper cover 2 inner chambers have at air inlet 12 places one with the identical bar-shaped trough of plugboard 6 width, plugboard 6 inserts in the bar-shaped trough air inlet 12 is communicated with air inlet elbow 5, also have after in plugboard 6 inserts bar-shaped troughs, putting in place position and the corresponding supported hole of shape on the upper cover 2 with boss 7a, the elastic reaction of shell fragment card 7 inserts in the supported hole boss 7a, thereby realizes 2 pairs of filter cores 4 of upper cover and the support of going up annex thereof.Also have a draining valve 8 in the shell, the drainpipe 9 of draining valve 8 stretches out from low head 3 bottoms and connects by seal 10, nut 11.

As Fig. 3, shown in Figure 5, the filter material layer of filter core 4 is nonwoven filter course 42, pyrex fibrous filter layer 43, pin felt type acquisition layer 44 at outer shroud punched-plate 41 to arranging successively between the interior ring punched-plate 45.Pyrex fibrous filter layer 41 adopts the pleated formula to arrange.

As Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, have annular groove 1a and boss 1b at interval in cylindrical shell 1 lower end on the circle, have annular groove 3a and boss 3b at interval on the low head 3 upper end cylindricals, screw to enter after the insertion between the other side's boss and be connected in the other side's annular groove by having boss respectively separately between cylindrical shell 1 and the low head 3, between the circle seal 14 is installed in low head 3 cylindricals and the cylindrical shell 1, upper cover 2 is identical with the syndeton between cylindrical shell 1 and the low head 3 with syndeton between the cylindrical shell 1.

Compressed-air filter of the present utility model can a plurality ofly be in turn connected to form series connection by air inlet and gas outlet and insert in the air duct, further improves the air filtration effect, improves air quality.

During work, when entering compressed-air filter from the compressed air of air compressor, streamlined intake elbow 5 by unique design enters in the filter core 4, adopt the right-angle type air inlet pipe can reduce air flow resistance 75% with respect to prior art, by nonwoven filter course 42, the pyrex fibrous filter layer 43 that the pleated formula is arranged, pin felt type acquisition layer is filtered 44 and is filtered, hydrophobic pyrex fibrous filter layer 43 can not expand, void volume can not reduce, the impurity capture space is big, filter efficiency is improved greatly, particularly adopt the pleated formula to arrange, filter area has increased by 3～4.5 times, make filter that be arranged longer service life, lower pressure reduction, higher dust containing capacity; Acquisition layer adopts pin felt type, and its chemical stability, Heat stability is good are difficult for breaking and can be high temperature resistant, have improved filter efficiency and function greatly, and the pin carpet veneer becomes very soft along with the rising of compressed air temperature, and the operating temperature of bearing can be brought up to 80 ℃.Compressed air is through behind the filter element filtering, and impurity such as the water that is filtered, greasy dirt are discharged by the discharge outlet 9 of draining valve 8.

Adopt the syndeton of the snap joint of buckle-type between the upper and lower end socket of compressed-air filter and the cylindrical shell, make installation and maintenance efficient and convenient.Shell adopts dismountable low head assembling form, is convenient to disassembly, cleaning, maintenance and the maintenance of compressed-air filter.

Claims

1. compressed-air filter, comprise shell, cased filter core (4), shell comprises cylindrical shell (1), upper cover (2), upper cover (2) removably connects with the upper end of cylindrical shell (1), has air inlet (12) on the upper cover (2), gas outlet (13), support that shrouding constituted about filter core (4) was reached by the inner and outer ring punched-plate and the filter material layer that is filled between the inner and outer ring punched-plate constitute, be connected with the filter core air inlet pipe on filter core (4) upper sealing plate, it is characterized in that: described filter core air inlet pipe is a streamlined air inlet elbow (5), the air inlet of air inlet elbow (5) is fixed with plugboard (6), the bottom of air inlet elbow (5) is fixed with a pair of shell fragment card (7), and shell fragment card (7) outer end has boss (7a); Described upper cover (2) inner chamber has been located a bar-shaped trough at air inlet (12), plugboard (6) inserts in the bar-shaped trough air inlet (12) is communicated with air inlet elbow (5), upper cover (2) go up to also have when plugboard (6) peg graft put in place after with the position and the corresponding supported hole of shape of boss (7a), the elastic reaction of shell fragment card (7) makes in boss (7a) the insertion supported hole; Described shell also comprises the low head (3) that removably connects with cylindrical shell (1) lower end; Also have a draining valve (8) in the described shell, the drainpipe (9) of draining valve (8) stretches out from low head (3) bottom and connects by seal (10), nut (11).

2. compressed-air filter according to claim 1, it is characterized in that: the filter material layer of described filter core (4) is nonwoven filter course (42), pyrex fibrous filter layer (43), pin felt type acquisition layer (44) at outer shroud punched-plate (41) to arranging successively between the interior ring punched-plate (45).

3. as compressed-air filter as described in the claim 2, it is characterized in that: described pyrex fibrous filter layer (43) adopts the pleated formula to arrange.

4. as compressed-air filter as described in arbitrary in the claim 1 to 3, it is characterized in that: have annular groove (1a) and boss (1b) at interval in described cylindrical shell (1) lower end on the circle, have annular groove (3a) and boss (3b) at interval on the cylindrical of described low head (3) upper end, screw to enter after insert between the other side's boss and be connected in the other side's annular groove by having boss respectively separately between cylindrical shell (1) and the low head (3), between the interior circle of low head (3) cylindrical and cylindrical shell (1) seal (14) is installed; Described upper cover (2) is identical with the syndeton between cylindrical shell (1) and the low head (3) with syndeton between the cylindrical shell (1).

5. as compressed-air filter as described in the claim 4, it is characterized in that: described compressed-air filter can a plurality ofly be in turn connected to form series connection by air inlet and gas outlet and insert in the air duct.