CN214183618U

CN214183618U - Gravity vortex filter

Info

Publication number: CN214183618U
Application number: CN202023055483.5U
Authority: CN
Inventors: 石玉洋; 唐佳丽; 欧阳峥嵘
Original assignee: Hefei Institutes of Physical Science of CAS
Current assignee: Hefei Institutes of Physical Science of CAS
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-09-14
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a gravity vortex filtering device, which comprises an inlet volute, a vortex fairing, a centrifugal separation barrel, a vortex speed reduction cover and an impurity collecting cover which are arranged from top to bottom in sequence; a fluid inlet pipe is arranged on the inlet volute, and the inflow direction of the fluid inlet pipe is along the tangential direction of the inlet volute; the centrifugal separation barrel is provided with a fluid outflow pipe, and the inner end of the fluid outflow pipe extends into the middle inside the centrifugal separation barrel. The utility model has the advantages that: the filter precision is relatively high, and the filter is suitable for systems with high precision requirements. The device can avoid the puncture of metal particle filter, prolongs the filter life, improves separation efficiency, and local resistance is little, and application scope is wide, especially has important advantage at newly-built piping system.

Description

Gravity vortex filter

Technical Field

The utility model relates to a process systems filter field, concretely relates to gravity vortex filter equipment.

Background

The filter is a necessary accessory in a process system, the filter mainly realizes the adjustment of the filtering precision by controlling the mesh number at present, the filter of the principle can meet the system with lower precision requirement, and in the high-precision system, if the filter of the principle is still adopted, the local resistance of the system can be increased, thereby increasing the power consumption of a system power source. In a high-speed flowing water system, a filter screen is washed by high-speed impurities, the probability of breakdown is increased, the filter needs to be frequently replaced in order to meet the process requirement, the continuous operation of the system process is influenced, and if the filter is not replaced timely, even the tail end precision equipment is damaged, so that huge economic loss is caused. The defects of the prior art are as follows: the method is only suitable for a water system with lower precision requirement, but not suitable for a system with higher precision requirement; the filter screen is easy to be broken down by hard particle impurities; the cleaning work for the impurities permeating into the inside of the filter is troublesome. In the prior art, for example, chinese patent application with publication number CN111204891A discloses a centrifugal scroll type ballast water filtering device with a self-adaptive cleaning function, which comprises: a filter cartridge assembly: the filter comprises two cascaded conical vertical filter cylinders, wherein internal spiral threads are arranged on the inner surfaces of the conical vertical filter cylinders; a water pump: the front end of the inlet of the first-stage conical vertical filter cylinder is provided with a filter; a filter screen cartridge: the water outlet is arranged at the water outlet of the second-stage conical vertical filter cylinder; dirty subassembly of collection: comprises a sewage discharge pipeline which is simultaneously communicated with a sewage discharge outlet of the two-stage conical vertical filter cylinder, a sewage discharge valve arranged at the sewage discharge outlet, a sewage suction pump arranged on the sewage discharge pipeline and a sewage collector; a pressure control assembly: the self-adaptive control method is used for realizing self-adaptive control of the opening of the sewage discharge valve at the sewage discharge port, the power of the water suction pump and the power of the sewage suction pump. Wherein the filtering is carried out by using a conical vertical filter cylinder, partial impurities can be removed, but the filtering precision is not high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: the filtering device in the prior art has the technical problems that the filtering precision is not high enough and is not suitable for a system with higher precision requirement.

The utility model discloses a realize solving above-mentioned technical problem through following technical means: a gravity vortex filtering device comprises an inlet volute, a vortex fairing, a centrifugal separation barrel, a vortex speed reduction cover and an impurity collecting cover which are sequentially arranged from top to bottom;

a fluid inlet pipe is arranged on the inlet volute, and the inflow direction of the fluid inlet pipe is along the tangential direction of the inlet volute;

the centrifugal separation barrel is provided with a fluid outflow pipe, and the inner end of the fluid outflow pipe extends into the middle of the inside of the centrifugal separation barrel.

The utility model provides a gravity vortex filter equipment is when in actual use, treat that filterable fluid gets into through the fluid admission pipe, and flow into in the entry spiral case along entry spiral case tangential direction, the spiral case converts the kinetic energy of incoming flow medium into vortex flow, make the fluid flow to the below side direction of barrel along the vortex fairing, the reduction of the velocity of flow has been realized in the rectification, after the fluid has got into the centrifugal separation bucket, under the effect of centrifugal force, great granule is got rid of the wall to the staving, under the blockking of staving, descend perpendicularly along the wall. Part fine particle can join in and mix in fluid medium and get into in the vortex speed reduction housing and continue to rotate, carry out the secondary speed reduction in the vortex speed reduction housing, make the energy of this part granule constantly reduce, fall into the bottom gradually, barrel center fluid is the in-process of hanging up, the vortex fairing can also prevent the granule by the secondary hoist, fluid outlet pipe extends to the inside centre of centrifugal separation bucket, make the export be in low-speed vortex district, can fully avoid the large granule metallic impurity in the fluid medium, therefore its filter fineness is higher relatively, be applicable to the higher system of required precision. The device can avoid the puncture of metal particle filter, prolongs the filter life, improves separation efficiency, and local resistance is little, and application scope is wide, especially has important advantage at newly-built piping system.

Preferably, the fluid inlet duct is perpendicular to the axis of the inlet volute.

Preferably, a filter screen is arranged in the fluid outflow pipe.

The filter screen can further filter a little impurity that remains in the fluid, improves the filter fineness of whole equipment.

Preferably, the vortex fairing is communicated up and down, and the diameter of the vortex fairing is gradually increased from top to bottom.

Preferably, the centrifugal separation barrel is in a cylindrical shape which is communicated up and down.

Preferably, the fluid outlet tube is perpendicular to the axis of the centrifugal separation barrel.

Optimized, the vortex speed reduction cover includes top, waist, bottom, and top to waist vortex speed reduction cover diameter reduces gradually, and waist to bottom vortex speed reduction cover diameter crescent.

Optimally, the inner wall of the vortex speed reducing cover is in arc transition in the vertical direction.

The arc transition can effectively block particles and can ensure smooth flow of fluid.

Preferably, the impurity collecting cover comprises an upper collecting part and a lower collecting part, the upper collecting part is in a cylindrical shape which is communicated from top to bottom, the lower collecting part is communicated from top to bottom, and the diameter of the lower collecting part is gradually reduced from top to bottom.

Preferably, the bottom of the impurity collecting cover is provided with a magnetic catcher.

When the particles move to the vicinity of the magnetic catcher, the particles can be caught by the magnetic catcher, so that the effect of purifying the fluid is achieved, and the filtering precision can be further improved.

The utility model has the advantages that:

1. the utility model provides a gravity vortex filter equipment is when in actual use, treat that filterable fluid gets into through the fluid admission pipe, and flow into in the entry spiral case along entry spiral case tangential direction, the spiral case converts the kinetic energy of incoming flow medium into vortex flow, make the fluid flow to the below side direction of barrel along the vortex fairing, the reduction of the velocity of flow has been realized in the rectification, after the fluid has got into the centrifugal separation bucket, under the effect of centrifugal force, great granule is got rid of the wall to the staving, under the blockking of staving, descend perpendicularly along the wall. Part fine particle can join in and mix in fluid medium and get into in the vortex speed reduction housing and continue to rotate, carry out the secondary speed reduction in the vortex speed reduction housing, make the energy of this part granule constantly reduce, fall into the bottom gradually, barrel center fluid is the in-process of hanging up, the vortex fairing can also prevent the granule by the secondary hoist, fluid outlet pipe extends to the inside centre of centrifugal separation bucket, make the export be in low-speed vortex district, can fully avoid the large granule metallic impurity in the fluid medium, therefore its filter fineness is higher relatively, be applicable to the higher system of required precision. The device can avoid the puncture of metal particle filter, prolongs the filter life, improves separation efficiency, and local resistance is little, and application scope is wide, especially has important advantage at newly-built piping system.

2. The filter screen can further filter a little impurity that remains in the fluid, improves the filter fineness of whole equipment.

3. The arc transition can effectively block particles and can ensure smooth flow of fluid.

4. When the particles move to the vicinity of the magnetic catcher, the particles can be caught by the magnetic catcher, so that the effect of purifying the fluid is achieved, and the filtering precision can be further improved.

Drawings

FIG. 1 is a perspective view of a gravity vortex filtration device in an embodiment of the present invention;

fig. 2-5 are a front view, a cross-sectional view, a right side view, and a top view of a gravity vortex filter apparatus in accordance with an embodiment of the present invention;

wherein,

an inlet volute-1 and a fluid inlet pipe-11;

a vortex fairing-2;

a centrifugal separation barrel-3 and a fluid outflow pipe-31;

vortex speed reducer-4, top-41, waist-42, bottom-43;

an impurity collecting cover-5, an upper collecting part-51 and a lower collecting part-52;

a blocking ring-6;

a magnetic trap-7.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in figure 1, the gravity vortex filtering device comprises an inlet volute 1, a vortex fairing 2, a centrifugal separation barrel 3, a vortex speed reduction cover 4, an impurity collecting cover 5, a blocking ring 6 and a magnetic catcher 7.

As shown in fig. 2, the inlet volute 1, the vortex fairing 2, the centrifugal separation barrel 3, the vortex speed reduction cover 4 and the impurity collection cover 5 are sequentially arranged from top to bottom, and specifically, in the inlet volute 1, the vortex fairing 2, the centrifugal separation barrel 3, the vortex speed reduction cover 4 and the impurity collection cover 5, two adjacent components are connected through flanges.

As shown in fig. 1 and 2, a fluid inlet pipe 11 is arranged on the inlet volute 1, and the inflow direction of the fluid inlet pipe 11 is along the tangential direction of the inlet volute 1; with reference to fig. 1-5, the centrifugal separation barrel 3 is provided with a fluid outflow pipe 31, and the inner end of the fluid outflow pipe 31 extends into the middle inside the centrifugal separation barrel 3; a filter screen is arranged in the fluid outflow pipe 31, and the filter screen is available in the prior art. Vortex speed reducer cover 4 includes top 41, waist 42, bottom 43, and top 41 reduces to waist 42 vortex speed reducer cover 4 diameter gradually, and waist 42 enlarges to bottom 43 vortex speed reducer cover 4 diameter gradually, waist 42 inner wall is provided with blocks ring 6, blocks 6 axes of ring and the coincidence of vortex speed reducer cover 4 axis, and is further, the diameter of bottom 43 is greater than the diameter of top 41, the direction arc transition about the inner wall of vortex speed reducer cover 4, block ring 6 and set up on waist 42 inner wall through the welded mode, the top edge that blocks ring 6 pastes on waist 42 innermost inner wall.

As shown in fig. 2, the inlet volute 1 is a cylindrical structure with a downward opening, and the fluid inlet pipe 11 is perpendicular to the axis of the inlet volute 1. The fluid inlet pipe 11 is arranged on the inlet volute 1 by means of welding.

As shown in fig. 2, the scroll fairing 2 penetrates vertically, and the diameter thereof gradually increases from top to bottom, and specifically, the inner wall and the outer wall of the scroll fairing 2 are conical surfaces.

As shown in fig. 2, the centrifugal separation tub 3 has a cylindrical shape that penetrates vertically. The fluid outflow pipe 31 is perpendicular to the axis of the centrifugal separation tub 3. A fluid outflow pipe 31 is welded to the centrifugal separation tub 3, and further, the fluid outflow pipe 31 is located at the center of the centrifugal separation tub 3 at the upper and lower positions.

As shown in fig. 3, the impurity collecting cover 5 includes an upper collecting portion 51 and a lower collecting portion 52, the upper collecting portion 51 has a cylindrical shape which penetrates vertically, the lower collecting portion 52 penetrates vertically, and the diameter of the lower collecting portion 52 gradually decreases from top to bottom. Specifically, the lower collecting part 52 is in an inverted conical shape, the bottom of the lower collecting part 52 is a plane, and a through hole is formed in the plane. The inside gravity settling zone that is of cover 5 is collected to whole impurity, and impurity subsides inside.

As shown in fig. 3, the bottom of the impurity collecting cage 5 is provided with a magnetic catcher 7. Specifically, magnetic nature trapper 7 includes the end cover and sets up the magnet in the end cover, and magnet passes through modes such as bonding, joint or screw connection and installs on the end cover, the end cover passes through joint or threaded connection's mode and installs in the planar through-hole in collection portion 52 bottom down, and the setting of end cover is conveniently installed and removed, and the easy to clean overhauls, and it is convenient to maintain.

The working principle is as follows:

as shown in fig. 1, the utility model provides a gravity vortex filter equipment is in practical application, treat filterable fluid and get into through fluid admission pipe 11, and flow into entry spiral case 1 along entry spiral case 1 tangential direction, spiral case 1 converts the kinetic energy of incoming flow medium into the vortex flow, make the fluid flow to the below side direction of barrel along vortex fairing 2, the reduction of velocity of flow has been realized in the rectification, the fluid has got into centrifugal separation bucket 3 back, under the effect of centrifugal force, great granule is got rid of the wall to the staving, under the blockking of staving, descend perpendicularly along the wall. Part of fine particles can be mixed in a fluid medium and enter the vortex speed reducing cover 4 to rotate continuously, secondary speed reduction is carried out in the vortex speed reducing cover 4, the energy of the part of particles is reduced continuously and falls into the bottom gradually, in the process of suspending fluid at the center of the cylinder body, the vortex fairing 2 can also prevent the particles from being hoisted for the second time, the fluid outflow pipe 31 extends to the middle of the inside of the centrifugal separation barrel 3, the outlet is in a low-speed vortex area, large-particle metal impurities in the fluid medium can be avoided fully, and therefore the filtering precision is relatively high, and the device is suitable for systems with high precision requirements. The device can avoid the puncture of metal particle filter, prolongs the filter life, improves separation efficiency, and local resistance is little, and application scope is wide, especially has important advantage at newly-built piping system.

The fluid flows to the bottom and then is suspended upwards, and in the process of suspending upwards, the diameter of the bottom 43 is set to be larger than that of the top 41, so that particles can be effectively prevented from being hoisted for the second time, and the filtering precision is improved.

When the particles move to the vicinity of the magnetic catcher 7, the particles can be caught by the magnetic catcher 7, and the effect of purifying the fluid can be achieved, and the filtration accuracy can be further improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A gravity vortex filter device, its characterized in that: comprises an inlet volute (1), a vortex fairing (2), a centrifugal separation barrel (3), a vortex speed reduction cover (4) and an impurity collecting cover (5) which are arranged from top to bottom in sequence;

a fluid inlet pipe (11) is arranged on the inlet volute (1), and the inflow direction of the fluid inlet pipe (11) is along the tangential direction of the inlet volute (1);

the centrifugal separation barrel (3) is provided with a fluid outflow pipe (31), and the inner end of the fluid outflow pipe (31) extends into the middle of the inside of the centrifugal separation barrel (3).

2. The gravity vortex filter apparatus of claim 1 wherein: the fluid inlet pipe (11) is perpendicular to the axis of the inlet volute (1).

3. The gravity vortex filter apparatus of claim 1 wherein: a filter screen is arranged in the fluid outflow pipe (31).

4. The gravity vortex filter apparatus of claim 1 wherein: the vortex fairing (2) is communicated up and down, and the diameter of the vortex fairing is gradually increased from top to bottom.

5. The gravity vortex filter apparatus of claim 1 wherein: the centrifugal separation barrel (3) is in a cylindrical shape which is communicated up and down.

6. The gravity vortex filter apparatus of claim 1 wherein: the fluid outflow pipe (31) is perpendicular to the axis of the centrifugal separation barrel (3).

7. The gravity vortex filter apparatus of claim 1 wherein: vortex speed reduction cover (4) include top (41), waist (42), bottom (43), and top (41) reduce gradually to waist (42) vortex speed reduction cover (4) diameter, and waist (42) increase gradually to bottom (43) vortex speed reduction cover (4) diameter.

8. The gravity vortex filter apparatus of claim 7 wherein: the inner wall of the vortex speed reducing cover (4) is in arc transition in the vertical direction.

9. The gravity vortex filter apparatus of claim 1 wherein: the impurity collecting cover (5) comprises an upper collecting part (51) and a lower collecting part (52), the upper collecting part (51) is in a cylindrical shape which is through from top to bottom, the lower collecting part (52) is through from top to bottom, and the diameter of the lower collecting part (52) is gradually reduced from top to bottom.

10. The gravity vortex filter apparatus of claim 1 wherein: the bottom of the impurity collecting cover (5) is provided with a magnetic catcher (7).