CN112023559A - Rotary dehydrator and air compressor - Google Patents

Abstract

The invention relates to the technical field of compressed air production, in particular to a rotary dehydrator and an air compressor; the rotary dehydrator comprises an outer barrel, a filter element, a driving assembly and a hollow shaft, wherein the filter element is arranged inside the outer barrel, the driving assembly and the hollow shaft are respectively arranged at two ends of the filter element, the driving assembly is used for driving the filter element to rotate around the rotation axis of the driving assembly relative to the outer barrel, the hollow shaft is used for introducing air to be dehydrated into the filter element, and a water absorption layer group is arranged on the side wall of the filter element and used for absorbing water in the air entering the filter element; when the driving assembly drives the filter element to rotate, water absorbed by the water absorption layer group can flow to the bottom of the outer barrel along the outer wall of the filter element. The rotary dehydrator and the air compressor have good dehydrating effect.

Description

Rotary dehydrator and air compressor

Technical Field

The invention relates to the technical field of compressed air production, in particular to a rotary dehydrator and an air compressor.

Background

Compressed air is used as a common power source and is widely applied, and the commonly used compressed air is obtained by filtering and dewatering. In fact, when water is contained more, some air compression devices have problems or have poor water removal effect or other reasons, and particularly, the air compression devices have large environmental temperature change or large temperature difference change between an air using point and an air supply source, water is accumulated easily, the hazard ratio to a pneumatic system of the device is large, and a control valve and a pneumatic element are easy to damage. The water removing apparatus provided by the related art has a poor water removing effect.

Disclosure of Invention

The invention aims to provide a rotary dehydrator and an air compressor, which have good dehydrating effect.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the invention provides a rotary dehydrator, which comprises an outer barrel, a filter element, a driving assembly and a hollow shaft, wherein the filter element is arranged inside the outer barrel, the driving assembly and the hollow shaft are respectively arranged at two ends of the filter element, the driving assembly is used for driving the filter element to rotate around a rotation axis of the driving assembly relative to the outer barrel, the hollow shaft is used for introducing air to be dehydrated into the filter element, and a water absorption layer group is arranged on the side wall of the filter element and used for absorbing water in the air entering the filter element; when the driving assembly drives the filter element to rotate, water absorbed by the water absorption layer group can flow to the bottom of the outer barrel along the outer wall of the filter element.

In an alternative embodiment, the water absorbent layer set comprises filter paper, and the filter paper is arranged on the inner wall of the filter element.

In an alternative embodiment, the water absorption layer group further comprises an adsorption layer, and the adsorption layer is arranged between the inner wall of the filter element and the filter paper.

In an optional embodiment, the filter element comprises a filter screen cylinder, an upper cover and a lower cover, the upper cover and the lower cover are respectively connected to two ends of the filter screen cylinder, the hollow shaft is communicated with the interior of the filter screen cylinder through the upper cover, the driving assembly is in transmission connection with the lower cover and is used for driving the lower cover to drive the filter screen cylinder to rotate around a rotation axis of the lower cover, the filter paper and the adsorption layer are sequentially arranged in the filter screen cylinder, and the adsorption layer is arranged between the filter paper and the filter screen cylinder;

when the driving assembly drives the filter screen cylinder to rotate, water absorbed by the adsorption layer can flow to the bottom of the outer cylinder along the outer wall of the filter screen cylinder.

In an optional embodiment, the hollow shaft comprises a shaft body and a limit ring fixedly arranged on the outer wall of the shaft body, and the shaft body is inserted into the upper cover and is used for introducing air to be dehydrated into the filter screen cylinder; the filter core is still including setting up in the sealing washer of upper cover, spacing ring and sealing washer butt.

In an alternative embodiment, the filter element further comprises a reinforcing cylinder, two ends of the reinforcing cylinder are respectively connected with the upper cover and the lower cover, and the reinforcing cylinder is positioned on the inner side of the filter screen cylinder.

In an alternative embodiment, the filter element further comprises a reinforcing rib connected with the reinforcing cylinder, and the length of the reinforcing rib extends along the radial direction of the reinforcing cylinder.

In an optional embodiment, the rotary dehydrator further comprises a water absorption layer, and the water absorption layer is arranged on the inner wall of the outer cylinder.

In an optional embodiment, the rotary dehydrator further comprises a drainage floating ball, the bottom of the outer barrel is provided with a drainage port, and the drainage floating ball is arranged at the bottom of the outer barrel and used for closing or opening the drainage port.

In a second aspect, an embodiment of the present invention provides an air compressor, including the rotary dehydrator according to any one of the foregoing embodiments.

The rotary dehydrator of the embodiment of the invention has the beneficial effects that: the rotary dehydrator provided by the embodiment of the invention comprises an outer barrel, a filter element, a driving assembly and a hollow shaft, wherein the filter element is arranged inside the outer barrel, the driving assembly and the hollow shaft are respectively arranged at two ends of the filter element, the driving assembly is used for driving the filter element to rotate around the rotation axis of the driving assembly relative to the outer barrel, the hollow shaft is used for introducing air to be dehydrated into the filter element, and a water absorption layer group is arranged on the side wall of the filter element and is used for absorbing water in the air entering the filter element; when the driving assembly drives the filter element to rotate, water absorbed by the water absorption layer group can flow to the bottom of the outer barrel along the outer wall of the filter element. When using this rotatory dehydrator to detach the water in the air, let in the inside of filter core by the air that will wait to remove water by the hollow shaft, and utilize drive assembly drive filter core to rotate for the urceolus, rotate the centrifugal force that produces through the filter core, the air that will wait to remove water gets rid of to the lateral wall of filter core, when the air that waits to remove water passes the lateral wall of filter core, absorb the water in the air by the water absorption layer group, the hydroenergy that is absorbed by the water absorption layer group is extruded under centrifugal action, and then can flow to the bottom of urceolus along the outer wall of filter core, so, can be when the air that lets in the filter core passes the lateral wall of filter core, utilize the moisture in the abundant absorption air of water absorption layer group, effectively separate water and air, and then reach good.

The air compressor of the embodiment of the invention has the beneficial effects that: the air compressor provided by the embodiment of the invention comprises the rotary dehydrator, and the rotary dehydrator has a good effect of removing water in air, so that components of the air compressor are not easily damaged due to too high water content in the air.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a partial sectional view of a rotary dehydrator in accordance with an embodiment of the present invention;

FIG. 2 is a first schematic structural diagram of a rotary dehydrator according to an embodiment of the present invention;

FIG. 3 is a schematic structural view II of the rotary dehydrator according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view of a cartridge in an embodiment of the invention;

FIG. 5 is a schematic view of the operation principle of the rotary dehydrator according to the embodiment of the invention.

Icon: 010-a rotary dehydrator; 100-outer cylinder; 110-a cartridge body; 111-a first opening; 112-a second opening; 113-an exhaust port; 120-upper end cap; 121-an upper platen; 122-upper sealing ring; 123-a first aperture; 130-an upper mounting plate; 131-a second hole; 140-lower end cap; 141-a lower press plate; 142-a lower seal ring; 143-a third aperture; 150-a lower mounting plate; 151-fourth hole; 200-a filter element; 210-a screen cylinder; 211-inner screen cylinder; 220-upper cover; 221-fifth hole; 230-a lower cover; 231-sixth hole; 240-a reinforcement cylinder; 241-reinforcing ribs; 300-a drive assembly; 310-a motor; 320-a coupler; 330-a rotating shaft; 331-a second stop collar; 332-a second sealing ring; 400-hollow shaft; 401-a rotary joint; 410-a shaft body; 420-a first stop collar; 421-a first sealing ring; 430-air outlet holes; 500-water-absorbing layer group; 510-filter paper; 520-an adsorption layer; 600-a scaffold; 610-a first plate; 620-a second plate; 630-a third plate; 640-support bar.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides an air compressor (not shown) that can be used to compress air.

The air compressor comprises the rotary dehydrator, so that water in air can be conveniently removed by using the rotary dehydrator, water in the air compressed by the air compressor is further reduced, and the air compressor is not easy to damage components due to too high water content in the air; before the air compressor is compressed, the water in the air is removed by the rotary dehydrator, and then the air after dehydration is compressed to protect the components of the air compressor.

Referring to fig. 1 and 2, the rotary dehydrator 010 includes an outer barrel 100, a filter element 200, a driving assembly 300 and a hollow shaft 400, wherein the filter element 200 is disposed inside the outer barrel 100, the driving assembly 300 and the hollow shaft 400 are respectively disposed at two ends of the filter element 200, the driving assembly 300 is used for driving the filter element 200 to rotate around its own rotation axis relative to the outer barrel 100, the hollow shaft 400 is used for introducing air to be dehydrated into the filter element 200, and a water absorption layer group 500 is disposed on a side wall of the filter element 200 for absorbing water in the air entering the filter element 200; when the driving assembly 300 drives the filter cartridge 200 to rotate, the water absorbed by the water absorption layer group 500 can flow to the bottom of the outer tub 100 along the outer wall of the filter cartridge 200.

When the rotary dehydrator 010 is used for removing water in air, air to be dehydrated is introduced into the filter element 200 through the hollow shaft 400, the filter element 200 is driven by the driving assembly 300 to rotate relative to the outer cylinder 100, air to be dehydrated is thrown to the side wall of the filter element 200 through centrifugal force generated by rotation of the filter element 200, when the air to be dehydrated passes through the side wall of the filter element 200, water in the air is absorbed by the water absorption layer group 500, water absorbed by the water absorption layer group 500 can be extruded out under the centrifugal action, and can flow to the bottom of the outer cylinder 100 along the outer wall of the filter element 200, so that when the air introduced into the filter element 200 passes through the side wall of the filter element 200, the water in the air can be sufficiently absorbed by the water absorption layer group 500, the water and the air are effectively separated, and a good water removal effect is achieved.

Alternatively, referring to fig. 2 and 3, the rotary dehydrator 010 includes a bracket 600, and the hollow shaft 400, the driving assembly 300, and the outer tub 100 are disposed on the bracket 600. Further, the bracket 600 includes a first plate 610, a second plate 620, and a third plate 630, which are sequentially spaced from top to bottom, and a plurality of support bars 640, where the first plate 610, the second plate 620, and the third plate 630 are all connected to the plurality of support bars 640, and the plurality of support bars 640 are spaced from each other. The driving assembly 300 is disposed on at least one of the second plate 620 and the third plate 630, the outer tub 100 is disposed between the first plate 610 and the second plate 620, the first plate 610 is opened with a first through hole (not shown), and the hollow shaft 400 is inserted through the first through hole; so set up, can improve rotatory dehydrator 010's structural stability.

Still further, along the extending direction of the rotation axis of the filter element 200, the upper and lower ends of the outer tube 100 are respectively abutted against the first plate 610 and the second plate 620, so as to improve the stability of the outer tube 100 disposed between the first plate 610 and the second plate 620. The hollow shaft 400 is inserted into the first through hole of the first plate 610, so that the stability of the outer cylinder 100 and the filter element 200 disposed on the bracket 600 can be further improved.

It should be noted that the number of the support rods 640 may be set according to needs, for example, three, four, etc., and is not limited in detail herein. The first plate 610, the second plate 620, and the third plate 630 may be connected to the support bar 640 by welding, integral molding, fastening members such as screws or bolts, and the like, and are not particularly limited.

The drive assembly 300 may be selected as desired, for example: the driving assembly 300 comprises a motor 310, a coupler 320 and a rotating shaft 330, wherein the motor 310 is arranged on the third plate 630, and the rotating shaft 330 is in transmission connection with an output shaft of the motor 310 through the coupler 320; the coupler 320 is disposed between the second plate 620 and the third plate 630, the second plate 620 is provided with a second through hole (not shown), and the rotating shaft 330 penetrates through the second through hole and extends into the outer tub 100 to be connected with the filter element 200; when the output shaft of the motor 310 rotates, the shaft 330 is driven by the coupling 320 to rotate the filter cartridge 200 relative to the tub 100. Of course, the motor 310 may be replaced by other power elements such as a pneumatic motor.

The motor 310 may be fixedly coupled to the third plate 630 by a fastening member such as a screw or a bolt.

Alternatively, referring to fig. 1, the outer tub 100 includes a tub body 110, an upper end cover 120, an upper mounting plate 130, a lower end cover 140, and a lower mounting plate 150; along the axial direction of the cylinder body 110, two ends of the cylinder body 110 are provided with a first opening 111 and a second opening 112, the upper mounting plate 130 is embedded at the first opening 111, the upper end cover 120 is connected with the cylinder body 110 and used for closing the first opening 111, the upper end cover 120 is fixedly connected with the upper mounting plate 130, and an upper pressure plate 121 and an upper sealing ring 122 are clamped between the upper end cover 120 and the upper mounting plate 130; the lower mounting plate 150 is embedded in the second opening 112, the lower end cap 140 is connected with the cylinder body 110 and used for closing the second opening 112, the lower end cap 140 is fixedly connected with the lower mounting plate 150, and a lower pressure plate 141 and a lower sealing ring 142 are clamped between the lower end cap 140 and the lower mounting plate 150; with such an arrangement, the sealing performance of the outer tub 100 can be improved to ensure that the water content of the air entering the outer tub 100 is not increased due to air leakage of the outer tub 100 after the filter element 200 is introduced through the hollow shaft 400 for water removal and filtration.

It should be noted that the manner and principle of sealing by the upper pressure plate 121, the upper sealing ring 122, the lower pressure plate 141 and the lower sealing ring 142 are similar to those of the related art, and are not described herein again; of course, in other embodiments, other sealing means may be used, such as applying a sealant.

Furthermore, the upper end cover 120 and the upper mounting plate 130 are respectively provided with a first hole 123 and a second hole 131, the lower end cover 140 and the lower mounting plate 150 are respectively provided with a third hole 143 and a fourth hole 151, and the hollow shaft 400 sequentially passes through the first through hole, the first hole 123 and the second hole 131 to be inserted into the filter element 200, so that the hollow shaft 400 can conveniently introduce air into the filter element 200, and the stability of the outer barrel 100 and the filter element 200 arranged on the bracket 600 can be improved by using the hollow shaft 400; the rotating shaft 330 sequentially passes through the second through hole, the third hole 143, and the fourth hole 151 to be connected to the filter element 200, so that the stability of the outer tub 100 and the filter element 200 disposed on the bracket 600 is improved by the rotating shaft 330, and when the output shaft of the motor 310 rotates, the filter element 200 can be reliably driven to rotate relative to the outer tub 100 by the rotating shaft 330. It should be noted that a bearing is further disposed between the rotating shaft 330 and the lower end cap 140, and a bearing is disposed between the hollow shaft 400 and the upper end cap 120.

Further, the side wall of the tub body 110 is provided with an air outlet 113, so that air entering the outer tub 100 after water removal can be discharged from the air outlet 113; specifically, the air outlet 113 is disposed adjacent to the upper mounting plate 130 so that the air after the water removal flows upward to be discharged out of the tub 100.

Optionally, referring to fig. 1 and 4, the filter element 200 includes a filter screen cylinder 210, an upper cover 220 and a lower cover 230, the upper cover 220 and the lower cover 230 are respectively connected to two ends of the filter screen cylinder 210, and the hollow shaft 400 is communicated with the inside of the filter screen cylinder 210 through the upper cover 220, specifically, the upper cover 220 is provided with a fifth hole 221, and the hollow shaft 400 passes through the fifth hole 221 and extends into the inside of the filter screen cylinder 210, so as to introduce external air into the filter screen cylinder 210 by using the hollow shaft 400; the driving assembly 300 is in transmission connection with the lower cover 230, and is used for driving the lower cover 230 to drive the filter screen cylinder 210 to rotate around its rotation axis.

Further, the lower cover 230 is provided with a sixth hole 231, and the rotating shaft 330 extends into the filter screen cylinder 210 through the sixth hole 231; with this arrangement, the filter cartridge 200 can be supported inside the tub 100 by the rotation shaft 330 and the hollow shaft 400 to ensure that the filter cartridge 200 can be reliably rotated in the tub 100 with respect to the tub 100.

Optionally, a first end of the rotating shaft 330 is connected to the output shaft of the motor 310 through the coupling 320, a first end of the hollow shaft 400 is distributed on a side of the first plate 610 away from the second plate 620, and a second end of the rotating shaft 330 is connected to a second end of the hollow shaft 400; in this way, the rotating shaft 330 and the hollow shaft 400 can be fully utilized to improve the stability of the filter element 200 disposed in the outer tub 100, and the filter element 200 can reliably rotate relative to the outer tub 100. It should be noted that the connection manner of the second end of the rotating shaft 330 and the second end of the hollow shaft 400 may be a plug connection, a snap connection, or a threaded connection, and is not limited in particular.

Further, the circumferential side wall of the second end of the hollow shaft 400 is provided with air outlet holes 430, so that air entering the inner cavity of the hollow shaft 400 enters the inside of the filter element 200 through the air outlet holes 430 for water removal.

Optionally, referring to fig. 1 and 4, the hollow shaft 400 includes a shaft body 410 and a limit ring (hereinafter, referred to as a first limit ring 420) fixedly disposed on an outer wall of the shaft body 410, the shaft body 410 is inserted into the upper cover 220 for introducing air to be dehydrated into the filter screen cylinder 210, specifically, the shaft body 410 is inserted into the upper cover 220 through the fifth hole 221 and extends into the filter screen cylinder 210; the filter cartridge 200 further includes a sealing ring (hereinafter, referred to as a first sealing ring 421) disposed on the upper cover 220, and the first limiting ring 420 abuts against the first sealing ring 421; with such an arrangement, it is ensured that air can only enter the inside of the filter cartridge 200 through the hollow shaft 400 to remove water, and further, the air which has passed through the filter cartridge 200 to remove water and enter the outer tub 100 is prevented from entering the filter cartridge 200 from the gap between the shaft body 410 and the upper cover 220, so that the air after water removal can be output from the air outlet 113 of the outer tub 100. The air outlet 430 is opened to the shaft body 410.

Further, the outer side of the rotating shaft 330 is fixedly sleeved with a second limiting ring 331, the lower cover 230 is provided with a second sealing ring 332, the rotating shaft 330 is inserted into the sixth hole 231, and the rotating shaft 330 is fixedly connected with the lower cover 230, for example: the second limit ring 331 is in interference fit, threaded connection and the like, and is abutted against the second seal ring 332; with this arrangement, it is further ensured that air can enter the inside of the filter cartridge 200 only through the hollow shaft 400 to remove water, and thus, the air that has passed through the filter cartridge 200 to remove water and entered the outer tub 100 is prevented from entering the filter cartridge 200 from the gap between the rotating shaft 330 and the lower cover 230, so that the air after water removal can be output from the air outlet 113 of the outer tub 100.

It should be noted that, the connection manner of the shaft body 410 and the first position-limiting ring 420 and the connection manner of the rotating shaft 330 and the second position-limiting ring 331 may be integrally formed, welded or bonded, and the like, and are not limited in detail herein.

Optionally, referring to fig. 1 and 4, the filter element 200 further includes a reinforcing cylinder 240, two ends of the reinforcing cylinder 240 are respectively connected to the upper cover 220 and the lower cover 230, and the reinforcing cylinder 240 is located inside the filter screen cylinder 210, that is, the filter screen cylinder 210 is sleeved outside the reinforcing cylinder 240; so configured, the strength of the filter element 200 can be increased.

Further, the filter element 200 further comprises a reinforcing rib 241 connected with the reinforcing cylinder 240, and the length of the reinforcing rib 241 extends along the radial direction of the reinforcing cylinder 240; so configured, the strength of the filter element 200 can be further increased.

The connection mode of the reinforcing rib 241 and the reinforcing cylinder 240 can be integrated molding or welding, etc.; in order not to interfere with the flow of air from the inside of the filter element 200 to the outer tub 100, the reinforcing tube 240 is provided as a mesh tube to ensure smooth flow of air from the filter element 200 to the outer tub 100.

It should be noted that, the connection manner of the reinforcing cylinder 240 and the filter screen cylinder 210 with the upper cover 220, and the connection manner of the reinforcing cylinder 240 and the filter screen cylinder 210 with the lower cover 230 may be clamping, welding, etc., and are not limited in particular.

Referring to fig. 1 and 4, the water absorption layer set 500 of the present embodiment includes a filter paper 510, and the filter paper 510 is disposed on an inner wall of the filter element 200; so set up, can make the air that gets into filter core 200 absorb water and filter through filter paper 510, not only can detach the water in the air, can also filter the impurity in the air, avoid absorbing water layer group 500 and block up.

The water absorption layer group 500 further comprises an adsorption layer 520, wherein the adsorption layer 520 is arranged between the inner wall of the filter element 200 and the filter paper 510, so that air entering the filter element 200 absorbs water and is filtered through the filter paper 510, and then is absorbed through the adsorption layer 520, so that the purpose of well removing water in the air is achieved, the air is firstly filtered through the filter paper 510, and the blockage of the adsorption layer 520 after long-time use is avoided. When the water in the air is removed by using the rotary dehydrator 010, the water adsorbed by the adsorption layer 520 can be thrown out by centrifugal force generated by the rotation of the filter element 200 and flows to the bottom of the outer tub 100 along the outer wall of the filter element 200.

Further, the filter paper 510 and the adsorption layer 520 are sequentially disposed inside the filter cylinder 210, and the adsorption layer 520 is disposed between the filter paper 510 and the filter cylinder 210; when the driving assembly 300 drives the screen cylinder 210 to rotate, the water absorbed by the adsorption layer 520 can flow along the outer wall of the screen cylinder 210 to the bottom of the outer cylinder 100.

Optionally, the two sides of the reinforcing cylinder 240 are both provided with the adsorption layers 520, and it is only necessary to ensure that the filter paper 510 is located at the inner layer, that is, when the filter cartridge 200 rotates, the air entering the filter cartridge 200 through the hollow shaft 400 passes through the filter paper 510 and then passes through the adsorption layers 520.

The manner of fixedly attaching the filter paper 510 and the adsorption layer 520 to the filter cylinder 210 may be selected according to needs, for example: the adsorption layer 520 may be bound to the inner wall of the filter cylinder 210 by using a fine wire or a fine metal wire or a fine mesh, and then the filter paper 510 may be bound to the side of the adsorption layer 520 away from the inner wall of the filter cylinder 210; the filter element 200 can be further improved in strength by binding the adsorption layer 520 and the filter paper 510 with a thin wire, a thin net, or the like, and can alleviate the damage caused by the filter paper 510 and the adsorption layer 520 being subjected to deformation such as shrinkage and stretching during water absorption and weight increase or rotation.

Optionally, referring to fig. 4, the filter element 200 further includes an inner filter screen cylinder 211, the filter screen cylinder 210 is sleeved outside the inner filter screen cylinder 211, two ends of the inner filter screen cylinder 211 are respectively connected to the upper cover 220 and the lower cover 230, and the reinforcing cylinder 240 is disposed between the inner filter screen cylinder 211 and the filter screen cylinder 210; with this arrangement, the structural strength of the screen cylinder 210 can be sufficiently increased. Further, along the radial direction of the filter screen cylinder 210, the two sides of the reinforcing cylinder 240 are both connected with the reinforcing ribs 241, and the reinforcing ribs 241 connected to the two sides of the reinforcing cylinder 240 respectively extend towards the inner filter screen cylinder 211 and the filter screen cylinder 210. Further, adsorption layers 520 are respectively clamped between the inner filter screen cylinder 211 and the reinforcing cylinder 240 and between the filter screen cylinder 210 and the reinforcing cylinder 240, and a filter paper 510 is arranged on one side of the inner filter screen cylinder 211 facing the filter screen cylinder 210, so that the adsorption layers 520 are positioned between the filter paper 510 and the filter screen cylinder 210, so as to ensure that air entering the filter element 200 through the hollow shaft 400 firstly passes through the filter paper 510 and then the adsorption layers 520, so as to fully absorb water in the air, and is filtered through the filter paper 510, so as to prevent the adsorption layers 520 from being blocked; and when the driving assembly 300 drives the filter cartridge 200 to rotate, the water adsorbed by the adsorption layer 520 can flow to the bottom of the outer tub 100 along the outside of the screen cylinder 210.

Of course, in other embodiments, the side of the inner screen cylinder 211 facing away from the screen cylinder 210 is provided with the filter paper 510, such that the adsorption layer 520 is located between the filter paper 510 and the screen cylinder 210, to ensure that the air entering the filter cartridge 200 through the hollow shaft 400 passes through the filter paper 510 and then the adsorption layer 520, so as to sufficiently absorb the water in the air, and is filtered by the filter paper 510, so as to prevent the adsorption layer 520 from being blocked. It should be understood that in still other embodiments, the filter cartridge 200 may not include the inner screen cylinder 211.

The absorbent layer 520 may be a water-absorbent bead layer, a water-absorbent sponge layer, or the like, and may be made of various materials capable of absorbing moisture and being air-permeable, and is not particularly limited herein.

In order to prevent the water absorbed in the water absorption layer group 500 from sputtering around when the filter element 200 rotates, the inner wall of the outer cylinder 100 is provided with a water absorption layer, which may be composed of water absorption beads; when the filter element 200 rotates, the water absorbed by the water absorption layer group 500 is thrown out under the centrifugal action instead of flowing along the outer wall of the filter screen cylinder 210, the water thrown out by the filter element 200 can be absorbed by the water absorption layer arranged on the inner wall of the outer cylinder 100, so that the condition of water droplet splashing can be improved, and the water discharged from the air can be smoothly accumulated in the outer cylinder 100.

Optionally, the rotary dehydrator 010 further includes a drain ball (not shown), the bottom of the outer tub 100 is provided with a drain outlet, and the drain ball is provided at the bottom of the outer tub 100 and is used for closing or opening the drain outlet. When the water accumulated in the outer tub 100 reaches a certain amount, so that the drainage ball floats, and the drainage port is opened, the water accumulated in the outer tub 100 is automatically drained through the drainage port; after the drainage is finished, the drainage floating ball falls under the action of self weight, and the drainage outlet is closed again. It should be noted that the structure of the drainage float ball is similar to that of the related art, and is not described herein again.

Optionally, the rotary water trap 010 further comprises a rotary joint 401, the rotary joint 401 is connected to the first end of the hollow shaft 400 and is in communication with the cavity of the hollow shaft 400, and the rotary joint 401 can be used to connect an external air source, such that the external air source passes air into the interior of the filter cartridge 200 through the rotary joint 401 and the hollow shaft 400.

It should be noted that the second end of the rotating shaft 330 and the second end of the hollow shaft 400 may be fixedly connected, that is, the rotating shaft 330 may drive the filter element 200 and the hollow shaft 400 to rotate synchronously; further, the hollow shaft 400 is fixedly connected to the upper cover 220, for example, it may be welded, clamped, etc., and the hollow shaft 400 is rotatably connected to the upper cover 120, the upper mounting plate 130 and the rotary joint 401, so as to prevent the upper cover 120, the upper mounting plate 130 and the rotary joint 401 from interfering the hollow shaft 400 to rotate synchronously with the filter element 200, thereby ensuring smooth spin-drying.

Referring to fig. 5, the water removing principle of the rotary water remover 010 provided in this embodiment includes: the filter element 200 is driven by the driving assembly 300 to rotate relative to the outer barrel 100, and air to be dewatered is introduced into the interior of the filter element 200 through the rotary joint 401 and the hollow shaft 400 by an external air source; the air that gets into the filter core 200 inner chamber can pass through the absorption of filter paper 510 and adsorbed layer 520 in proper order to make the water in the air absorbed filter paper 510 and adsorbed layer 520, because filter core 200 keeps rotating always, the water that adsorbs in adsorbed layer 520 can remove to the direction of urceolus 100 inner wall under the effect of centrifugal force, even the water that gets adsorbed in adsorbed layer 520 can separate with adsorbed layer 520 under the nature effect, and then make the adsorbed water of adsorbed layer 520 can flow down along the inner wall of filter screen section of thick bamboo 210, and the bottom of urceolus 100 is driped down. When a certain amount of water is accumulated at the bottom of the tub 100, the drainage ball automatically opens the drainage port to drain the water in the tub 100; the air for dewatering sequentially passing through the filter paper 510 and the adsorption layer 520 enters the outer tub 100, flows upward, and is discharged out of the rotary dewaterer 010 through the exhaust port 113.

In summary, the air compressor of the present invention can achieve a good water removal effect by using the water absorption layer group 500 disposed on the rotary water remover 010, so that the air compressor is not prone to damage of components due to too high water content in the air.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A rotary dehydrator is characterized by comprising an outer barrel, a filter element, a driving assembly and a hollow shaft, wherein the filter element is arranged inside the outer barrel, the driving assembly and the hollow shaft are respectively arranged at two ends of the filter element, the driving assembly is used for driving the filter element to rotate around a rotation axis of the driving assembly relative to the outer barrel, the hollow shaft is used for introducing air to be dehydrated into the filter element, and a water absorption layer group is arranged on the side wall of the filter element and used for absorbing water in the air entering the filter element; when drive assembly drive the filter core rotates, the water that the water absorption layer group was absorptive can follow the outer wall flow direction of filter core the bottom of urceolus.

2. The rotary dehydrator according to claim 1, wherein the water absorption layer set comprises filter paper, and the filter paper is arranged on the inner wall of the filter element.

3. The rotary dehydrator according to claim 2, wherein the water absorption layer set further comprises an adsorption layer disposed between an inner wall of the filter element and the filter paper.

4. The rotary dehydrator according to claim 3, wherein the filter element comprises a filter screen cylinder, an upper cover and a lower cover, the upper cover and the lower cover are respectively connected to two ends of the filter screen cylinder, the hollow shaft is communicated with the inside of the filter screen cylinder through the upper cover, the driving assembly is in transmission connection with the lower cover and is used for driving the lower cover to drive the filter screen cylinder to rotate around a rotation axis of the driving assembly, the filter paper and the adsorption layer are sequentially arranged inside the filter screen cylinder, and the adsorption layer is arranged between the filter paper and the filter screen cylinder;

when the driving assembly drives the filter screen cylinder to rotate, water absorbed by the absorption layer can flow to the bottom of the outer cylinder along the outer wall of the filter screen cylinder.

5. The rotary dehydrator according to claim 4, wherein the hollow shaft comprises a shaft body and a limit ring fixedly arranged on the outer wall of the shaft body, the shaft body is inserted with the upper cover for introducing air to be dehydrated into the filter screen cylinder; the filter core still including set up in the sealing washer of upper cover, the spacing ring with the sealing washer butt.

6. The rotary dehydrator according to claim 4, wherein the filter element further comprises a reinforcing cylinder, wherein two ends of the reinforcing cylinder are respectively connected with the upper cover and the lower cover, and the reinforcing cylinder is positioned inside the filter screen cylinder.

7. The rotary dehydrator according to claim 6, wherein the filter cartridge further comprises a rib connected to the reinforcement cylinder, and wherein the length of the rib extends in a radial direction of the reinforcement cylinder.

8. The rotary dehydrator according to claim 1, further comprising a water absorbing layer disposed on an inner wall of the outer tub.

9. The rotary dehydrator according to claim 1, further comprising a drain ball, wherein the bottom of the outer tub is provided with a drain opening, and the drain ball is disposed at the bottom of the outer tub and used for closing or opening the drain opening.

10. An air compressor, characterized by comprising a rotary dehydrator as claimed in any one of claims 1 to 9.

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