CN211189384U - Pipeline type filter adopting cyclone separation - Google Patents

Abstract

The utility model discloses an adopt hydrocyclone separation's pipeline formula filter, it relates to filter technical field. The upper portion of outer barrel is passed through the flange and is connected with the upper reaches pipeline, the department of meeting is fixed with the flange double-screw bolt through flange nut, flange joint department is provided with seal gasket, outer barrel is inside to install the water conservancy diversion awl in proper order, the vortex generator, the cartridge filter, the last array of vortex generator has arranged guide vane, the periphery of cartridge filter is provided with the filter screen, the outlet pipe is installed to the lower part of outer barrel, the bottom at the cartridge filter is fixed to the one end of outlet pipe, the ring chamber that forms between outer barrel and the cartridge filter is the separation chamber, the ring chamber that forms between outer barrel and the outlet pipe is the deposit chamber, the separation chamber is close to outer barrel inner wall department and is formed with solid enrichment district, the separation chamber is close to cartridge. The utility model discloses reduce the load of filter screen, improved the continuous operation ability and the filter capacity of filter, application prospect is wide.

Description

Pipeline type filter adopting cyclone separation

Technical Field

The utility model relates to a filter technical field, concretely relates to adopt hydrocyclone separation's pipeline formula filter.

Background

In a pipeline flow system formed by using equipment such as a pump, a pipeline, a valve, a pressure container and the like, solid matters in the pipeline, such as oxides, gasket fragments, welding slag, oxidation products and other various forms of solid matters in the pipeline, are sometimes generated due to various reasons, so that a filter is required to filter the solid matters so as to keep the fluid in the pipeline clean and prevent the fluid from harming the normal operation of the equipment or the process. At present, two types of filters, namely a pipe filter and a basket filter, are commonly used.

The pipeline type filter (figure 1) is composed of an upstream pipeline 1, a flange nut 2, a flange stud 3, a sealing gasket 4, a flange 5, a filter cartridge 8, a filter screen 9, an outer cylinder 11, a downstream pipeline 15, a support ring 20, a filter cartridge stud 21 and a filter cartridge nut 22, when the pipeline type filter is installed, the filter cartridge 8 is fixed in the outer cylinder 11 through the filter cartridge stud 21 and the filter cartridge nut 22, the stainless steel filter screen 9 wraps the outside of the filter cartridge 8 and is fixed on the filter cartridge 8 through screws, upstream fluid flows through the filter screen through an annular gap between the filter cartridge 8 and the outer cylinder 11, impurities in the fluid are left on the filter screen 9, and then the fluid flows out to the downstream pipeline 15 through a cavity in the middle of the. When the filter screen 9 needs to be replaced, the flange nuts 2 and the flange studs 3 of the upstream and downstream connecting flanges 5 are removed, the whole filter is taken down, then the filter cartridge 8 can be taken out, and the filter screen 9 is replaced.

The basket type filter (figure 2) is composed of an upstream pipeline 1, a flange nut 2, a flange stud 3, a sealing gasket 4, a flange 5, a filter cylinder 8, a filter screen 9, an outer cylinder body 11, an outlet pipe 14, a downstream pipeline 15, a flange cover 23 and an inlet pipe 24. During installation, the filter cartridge 8 is fixed in the outer cylinder 11, the stainless steel filter screen 9 is wrapped on the outer portion of the filter cartridge 8 and fixed on the filter cartridge 8 through screws, fluid enters an annular cavity between the outer cylinder 11 and the filter cartridge 8 from the side face of the outer cylinder 11, impurities in the fluid are left on the filter screen 9, then the fluid flows out through a hole in the middle of the filter cartridge 8, and then flows out to the downstream pipeline 15 through the outlet pipe 14 on the side face of the outer cylinder 11. When the filter screen 9 needs to be replaced, the flange nut 2 and the flange stud 3 for fixing the flange cover 23 are removed, the filter cartridge 8 can be taken out, and the filter screen 9 is replaced.

The above filter has the following drawbacks:

(1) the impurities on the filter screen of the filter accumulate more and more along with the time, so that the filter screen is blocked, the flow resistance is increased, and the filter screen is possibly broken;

(2) when a large amount of impurities suddenly appear at times, the filter may lose the filtering capacity, forcing the device to be out of service;

(3) the filtering capacity of the filter depends on the mesh number of the filter net, and the smaller the mesh number, the heavier the load of the filter.

In order to solve the problems, it is particularly necessary to design a novel pipeline type filter adopting cyclone separation.

Disclosure of Invention

The utility model aims to provide an adopt cyclone's pipeline formula filter, simple structure, reasonable in design has reduced the load of filter screen, improves the continuous operation ability and the filter capacity of filter, and the practicality is strong, easily uses widely.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a pipeline type filter adopting rotational flow separation comprises an upstream pipeline, a flange nut, a flange stud, a sealing gasket, a flange, a flow guide cone, a rotational flow generator, a filter cylinder, a filter screen, a separation cavity, an outer cylinder body, a deposition cavity, a drain outlet, an outlet pipe and a downstream pipeline, wherein the upper part of the outer cylinder body is connected with the upstream pipeline through the flange, the joint part is fixed with the flange stud through the flange nut, the sealing gasket is arranged at the flange joint part, the flow guide cone, the rotational flow generator and the filter cylinder are sequentially arranged in the outer cylinder body, the flow guide cone is arranged at the inlet of the outer cylinder body and the upstream pipeline, the filter screen is arranged at the periphery of the filter cylinder, the outlet pipe is arranged at the lower part of the outer cylinder body, one end of the outlet pipe is fixed at the bottom end of the filter cylinder, a ring, the bottom of the outer cylinder body is provided with a sewage draining outlet.

Preferably, the swirl generator is of a blade-shaped structure, the guide vanes which form an inclined included angle with the axis are arrayed on the swirl generator, the swirl generator enables the fluid to generate flow rotating around the axial direction, so that the separation of solid matters is realized, and meanwhile, the rotational flow speed can be controlled by controlling the angle of the vanes.

Preferably, a solid enrichment area is formed at the position, close to the inner wall of the outer cylinder body, of the separation cavity, and a pure fluid area is formed at one side, close to the filter cylinder, of the separation cavity.

Preferably, a drain valve is arranged on a drain pipeline connected with the drain outlet, and impurities can be removed on line by virtue of the drain valve, so that the long-time work of the filter is realized.

Preferably, the guide vane is one of a straight inclined vane, a straight twisted vane and a curved vane.

The utility model has the advantages that: (1) the cyclone separation method is adopted to realize the pre-separation of solids, and most of the filtered substances can enter the deposition cavity, so that the load of the filter screen is greatly reduced;

(2) the cyclone centrifugal separation can realize the removal of impurities by means of the centrifugal separation even if the particle size of some solids is smaller and the density of the solids is obviously higher than that of fluid, so that the filtering capacity of the filter is improved;

(3) greatly improves the continuous working capacity of the filter and reduces the maintenance time of the loop caused by the rise of the resistance of the filter.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;

FIG. 1 is a schematic diagram of a prior art in-line filter;

FIG. 2 is a schematic view of a basket filter according to the prior art;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a schematic view of the installation of the deflector cone and the vortex generator of the present invention;

fig. 5 is a flow diagram of the cross section of the rotational flow of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 3 to 5, the following technical solutions are adopted in the present embodiment: a pipeline type filter adopting cyclone separation comprises an upstream pipeline 1, a flange nut 2, a flange stud 3, a sealing gasket 4, a flange 5, a diversion cone 6, a cyclone generator 7, a filter cylinder 8, a filter screen 9, a separation chamber 10, an outer cylinder 11, a deposition chamber 12, a sewage discharge outlet 13, an outlet pipe 14 and a downstream pipeline 15, wherein the upper part of the outer cylinder 11 is connected with the upstream pipeline 1 through the flange 5, the joint part is fixed with the flange stud 3 through the flange nut 2, the sealing gasket 4 is arranged at the flange joint part, the diversion cone 6, the cyclone generator 7 and the filter cylinder 8 are sequentially arranged inside the outer cylinder 11, the diversion cone 6 is arranged at the inlet of the outer cylinder 11 and the upstream pipeline 1, the filter screen 9 is arranged at the periphery of the filter cylinder 8, the outlet pipe 14 is arranged at the lower part of the outer cylinder 11, one end of the outlet pipe 14 is fixed at the bottom end of the filter cylinder 8, a ring cavity, an annular cavity formed between the outer cylinder body 11 and the outlet pipe 14 is a deposition cavity 12, a solid enrichment area 17 is formed at the position, close to the inner wall of the outer cylinder body 11, of the separation cavity 10, and a pure fluid area 18 is formed at one side, close to the filter cylinder 8, of the separation cavity 10.

It is worth noting that the swirl generator 7 is a blade-shaped structure, the guide vanes 16 which form an inclined included angle with the axis are arrayed on the swirl generator 7, the swirl generator enables the fluid to generate the flow rotating around the axial direction, thereby realizing the separation of solid matters, and meanwhile, the rotating flow speed can be controlled by controlling the angle of the vanes; the guide vanes 16 may be inclined straight vanes, twisted straight vanes or curved vanes.

In addition, the sedimentation chamber 12 of outer barrel 11 bottom is connected with drain 13, install blowoff valve 19 on the sewage pipes that drain 13 meets, under the condition of reasonable selection valve and blowdown structure, can get rid of debris on line to realize the long-time work of filter, very big improvement filter continuous operation ability has reduced the return circuit maintenance time that leads to because of the filter resistance risees.

The working principle of the specific embodiment is as follows: when fluid enters the filter inlet from the upstream pipeline 1, the fluid firstly passes through the guide cone 6, the guide cone 6 divides the fluid into annular fluid and flows through the subsequent swirl generator 7, an array formed by the guide vanes 16 in the swirl generator 7 can enable the axially flowing fluid to generate rotational flow around a flow axis, after the rotational flow enters the separation cavity 10, the centrifugal force caused by the rotational flow can force solid matters with density higher than that of water in the fluid to be enriched in the direction close to the inner wall of the outer cylinder body 11, so that a solid matter enrichment area 17 is formed outside the separation cavity, and the clean pure fluid area 18 is close to one side of the filter cylinder and flows to the downstream pipeline 15 through the outlet pipe 14 after the clean fluid is further filtered by the filter screen 9; the solid matter close to the inner wall surface of the outer cylinder 11 slowly falls down under the action of gravity, finally sinks into the deposition chamber 12 and is collected by the deposition chamber 12.

The embodiment adopts a rotational flow centrifugal separation method, and a rotational motion around an axis is generated in the fluid flow, so that the solid matters in the fluid are enriched near the wall surface due to the centrifugal force generated by the rotational motion, thereby realizing the pre-separation of solid impurities, most of the impurities separated by the centrifugal separation can be settled in the sedimentation cavity under the action of gravity, and the separated impurities are collected by the sedimentation cavity, thereby reducing the deposition of the impurities on the surface of the filter screen, prolonging the low-resistance working time of the filter, greatly reducing the load of the filter screen, and simultaneously, even if the particle sizes of some solids are smaller, when the density of the solids is obviously higher than that of the fluid, the impurities can be removed by the centrifugal separation, thereby improving the filtering capacity of the filter.

This embodiment has solitary mechanical separation ability, separates the deposit chamber with solid impurity to greatly reduce the load of filter screen, and can improve the separation ability to tiny solid impurity, compare in traditional filter structure, have and filter solid impurity, reduce the advantage of filter screen load, online blowdown, possess wide market perspective.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A pipeline type filter adopting cyclone separation is characterized by comprising an upstream pipeline (1), a flange nut (2), a flange stud (3), a sealing gasket (4), a flange (5), a diversion cone (6), a cyclone generator (7), a filter cartridge (8), a filter screen (9), a separation cavity (10), an outer cylinder (11), a deposition cavity (12), a drain outlet (13), an outlet pipe (14) and a downstream pipeline (15), wherein the upper part of the outer cylinder (11) is connected with the upstream pipeline (1) through the flange (5), the joint is fixed with the flange stud (3) through the flange nut (2), the sealing gasket (4) is arranged at the joint of the flange, the diversion cone (6), the cyclone generator (7) and the filter cartridge (8) are sequentially arranged in the outer cylinder (11), the diversion cone (6) is arranged at the inlet of the outer cylinder (11) and the upstream pipeline (1), the periphery of cartridge filter (8) is provided with filter screen (9), and outlet pipe (14) are installed to the lower part of outer barrel (11), and the bottom in cartridge filter (8) is fixed to the one end of outlet pipe (14), outer barrel (11) and cartridge filter (8) between the ring chamber that forms be separation chamber (10), the ring chamber that forms between outer barrel (11) and outlet pipe (14) is deposition chamber (12), the bottom of outer barrel (11) be provided with drain (13).

2. A pipe filter using cyclone separation according to claim 1, wherein the cyclone generator (7) is a blade-like structure, and guide vanes (16) having an inclined angle with the axis are arrayed on the cyclone generator (7).

3. A pipe filter using cyclone separation according to claim 1, wherein the separation chamber (10) is formed with a solid enrichment zone (17) near the inner wall of the outer cylinder (11), and a pure fluid zone (18) is formed at the side of the separation chamber (10) near the filter cartridge (8).

4. A pipe filter using cyclone separation according to claim 1, wherein a drain valve (19) is installed on a drain connected to the drain outlet (13).

5. A tube filter with cyclone separation according to claim 2, characterized in that the guide vanes (16) are inclined straight vanes.

6. A tunnel filter using cyclone separation according to claim 2 wherein the guide vanes (16) are twisted straight vanes.

7. A tube filter with cyclone separation according to claim 2, characterized in that the guide vanes (16) are curved vanes.

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