CN101566173A - Filter screen and fluid circulation device - Google Patents

Abstract

The invention discloses a filter screen and a fluid circulating device, wherein the filter screen is conical in appearance and comprises a bottom part and a top part, the bottom part is annular, and the filter screen converges to a point along a straight line from the bottom part to the top part. When the filter screen is used in a fluid circulation device, the filter screen is fixed in a pipeline connected to a pump. The filter screen has better filtering efficiency, so the pump can be prevented from being damaged by impurities, and the maintenance and replacement cost of the pump can be saved.

Description

Filter screen and fluid circulation device

technical field

The present invention relates to a filter screen and a fluid circulation device, and in particular to a filter screen and a fluid circulation device which prevents the filter screen from being blocked and has high filtration efficiency.

Background technique

A general pump is a device used to move fluids such as liquids and gases, and it is one of the main devices in various industrial fluid circulation systems. When the fluid in the circulation system contains impurities such as by-products or other foreign matter, these impurities often cause damage to the rotor of the pump or slow speed, resulting in process interruption or delay, and serious contamination and defects in the product. In order to solve the above-mentioned problems, the way in the prior art is to set a filter screen in the pipeline to filter these impurities.

However, due to the flat appearance of the filter screen used in the conventional technology, impurities are easy to accumulate on the filter screen, causing the filter screen to be blocked and affecting the fluid delivery efficiency. When the delivery efficiency of the fluid cannot meet the process requirements, it will cause process interruption or delay, which will greatly reduce production efficiency.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a filter to effectively prevent the filter from being blocked and improve filtration efficiency.

Another object of the present invention is to provide a fluid circulation device with better fluid delivery efficiency.

The present invention provides a filter screen whose appearance is conical and includes a bottom and a top. The bottom is ring-shaped, and the filter screen converges to a point along a straight line from the bottom to the top.

According to an embodiment of the present invention, in the above-mentioned filter screen, the longitudinal section of the filter screen is in an inverted V shape.

According to an embodiment of the present invention, in the above-mentioned filter screen, the slope of the filter screen is greater than or equal to 1.

According to an embodiment of the present invention, in the above-mentioned filter screen, the ring shape is, for example, a circular ring shape or a polygonal ring shape.

According to an embodiment of the present invention, in the above-mentioned filter screen, the material of the filter screen is metal.

According to an embodiment of the present invention, in the above-mentioned filter screen, the material of the filter screen is Teflon.

The invention proposes a fluid circulation device suitable for conveying fluid, which includes a pump, a pipeline and a filter screen. The tubing is connected to the pump. The filter is fixed in the pipeline, wherein the appearance of the filter is conical, and includes a bottom and a top, the bottom is ring-shaped, and the filter converges to a point along a straight line from the bottom to the top.

According to an embodiment of the present invention, the above-mentioned fluid circulation device further includes an adapter for connecting the pipeline with the pump.

According to an embodiment of the present invention, the above-mentioned fluid circulation device further includes a sealing element disposed at the connection between the pipeline and the pump.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the sealing element is, for example, an O-ring.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the material of the sealing element is, for example, rubber.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the direction pointed by the top of the filter is, for example, opposite to the flow direction of the fluid.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the direction pointed by the top of the filter is, for example, the same as the flow direction of the fluid.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the filter is, for example, fixed on an end of the pipeline close to the pump.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the fixing method of the filter screen in the pipeline is, for example, welding.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the longitudinal section of the filter screen is in an inverted V shape.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the slope of the filter screen is greater than or equal to 1.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the ring shape is a ring shape or a polygonal ring shape.

According to an embodiment of the present invention, in the above-mentioned fluid circulation device, the material of the filter is metal.

According to an embodiment of the present invention, in the above fluid circulation device, the material of the filter is Teflon.

Based on the above, since the filter screen of the present invention is conical, it has a larger surface area and is less likely to be blocked by impurities, thereby effectively improving the filtering efficiency. In addition, since the filter screen of the present invention converges to a point along a straight line from the bottom to the top, the impurities can easily slide down to the bottom, so that the filter screen can be prevented from being completely blocked, thereby improving the filtration efficiency.

On the other hand, since the filter screen used in the fluid circulation device of the present invention has better filtration efficiency and can prevent impurities from damaging the pump, maintenance and replacement costs of the pump can be saved.

In addition, because the filter screen used in the fluid circulation device of the present invention can prevent impurities from completely blocking the filter screen, it has better fluid delivery performance. In this way, process interruption caused by poor fluid delivery efficiency can be avoided, so production efficiency can be effectively improved, and the problem of product scrap caused by process interruption can be prevented.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a filter screen according to an embodiment of the present invention.

Figure 2 shows a longitudinal sectional view along line I-I' in Figure 1.

FIG. 3 is a schematic diagram of a fluid circulation device according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a fluid circulation device according to another embodiment of the present invention.

FIG. 5 is a schematic diagram of a filter according to another embodiment of the present invention.

[Description of main component symbols]

100, 300: filter screen

102, 302: Bottom

104, 304: top

106: central axis

108: Tapered surface

200, 200': fluid circulation device

202: pump

204: pipeline

206: Adapter

208: Closed element

210: flow direction

212: Impurities

Θ: included angle

Detailed ways

FIG. 1 is a schematic diagram of a filter screen according to an embodiment of the present invention. Figure 2 shows a longitudinal sectional view along line I-I' in Figure 1.

Referring to FIG. 1 , the appearance of the filter screen 100 is conical, which can effectively increase the surface area of the filter screen 100 . The filter screen 100 includes a bottom 102 and a top 104 , and the filter screen 100 converges to a point along a straight line from the bottom 102 to the top 104 , so that impurities can slide down easily, so that the filter screen can be completely blocked. Wherein, the bottom 102 is ring-shaped, although in this embodiment, a ring shape is taken as an example for illustration, but there is no special limitation on what kind of ring shape the bottom 102 is. The shape of the bottom 102 may be a polygonal ring in addition to a ring shape, and those who have ordinary knowledge in this technical field can adjust it according to the requirement.

The material of the filter screen 100 is, for example, metal or Teflon. It should be noted that the material of the filter screen 100 should depend on the fluid to be filtered, and the selected material must have corrosion resistance to the fluid to be filtered.

Please refer to Fig. 2, the longitudinal section of the filter screen 100 is inverted V-shaped, and the central axis 106 of the filter screen 100 and the tapered surface 108 have an included angle Θ, so that the filter screen 100 has a slope, the smaller the included angle Θ, the greater the slope The larger the slope, the easier it is for the impurities to be filtered to slide down. The slope of the filter screen 100 is greater than or equal to 1, for example.

It can be known from the above embodiments that since the filter screen 100 has a larger surface area, it is less likely to be blocked by impurities, thereby improving the filtering efficiency. In addition, since the filter screen 100 converges to a point along a straight line from the bottom 102 to the top 104 , the impurities can easily slide down to prevent the filter screen 100 from being fully blocked by impurities, thereby greatly improving the filtration efficiency.

FIG. 3 is a schematic diagram of a fluid circulation device according to an embodiment of the present invention. In FIG. 3 , the same components as those in FIGS. 1 and 2 are given the same reference numerals and their descriptions are omitted.

The fluid circulation device 200 includes a pump 202 , a pipeline 204 and a filter 100 . The fluid circulation device 200 is suitable for conveying fluids such as gas or liquid. The pump 202 is, for example, a dry pump.

Line 204 is connected to pump 202 . When the pipe diameter of the pipeline 204 is inconsistent with the interface of the pump, the fluid circulation device 200 further includes an adapter 206 for connecting the pipeline 204 and the pump 202 .

In addition, the fluid circulation device 200 may further include a tightness element 208 disposed at the connection between the pipeline 204 and the pump 202 to improve the tightness of the connection. In this embodiment, the sealing element 208 is, for example, disposed between the pipeline 204 and the adapter 206 , and between the adapter 206 and the pump 202 . The sealing element 208 is, for example, an O-ring. The material of the sealing element 208 is rubber, for example.

The filter screen 100 is fixed in the pipeline 204, wherein the appearance of the filter screen 100 is conical, and includes a bottom 102 and a top 104, the bottom 104 is annular, and the filter screen 100 converges to a point along a straight line from the bottom 102 to the top 104 . The top 104 of the screen 100 points in a direction opposite to the flow direction 210 of the fluid. The filter screen 100 is, for example, fixed on an end of the pipeline 204 close to the pump 202 , and the method of fixing the filter screen 100 in the pipeline 204 is, for example, welding.

It can be seen from the above-mentioned embodiments that, in addition to having a larger surface area, the filter screen 100 used in the fluid circulation device 200 can more easily make the impurities 212 slide down along the tapered surface 108, so it can prevent the impurities 212 from causing damage to the filter screen 100. Comprehensive occlusion with better fluid delivery performance. In this way, the process interruption caused by poor fluid delivery efficiency can be avoided, the production efficiency can be effectively improved, and the problem of product scrap caused by process interruption can be prevented.

In addition, since the filter screen 100 has better filtration efficiency and can prevent the impurities 212 from damaging the pump 202 , the maintenance and replacement costs of the pump 202 can be saved.

FIG. 4 is a schematic diagram of a fluid circulation device according to another embodiment of the present invention. In FIG. 4 , the same components as those in FIG. 3 are given the same reference numerals and their descriptions are omitted.

Please refer to FIG. 3 and FIG. 4 at the same time. The difference between the fluid circulation device 200' in FIG. 4 and the fluid circulation device 200 in FIG. The direction 210 is the same, while the top 104 of the screen 100 in FIG. 3 points in the direction opposite to the direction 210 of fluid flow.

Likewise, in this embodiment, because the filter screen 100 used in the fluid circulation device 200' has a relatively large surface area, and allows the impurities 212 to slide down easily along the tapered surface 108, it can prevent the impurities 212 from affecting the filter. Mesh 100 creates a generalized blockage with better fluid transfer efficiency. In addition, since the filter screen 100 has better filtration efficiency, the maintenance and replacement costs of the pump 202 can be saved.

FIG. 5 is a schematic diagram of a filter according to another embodiment of the present invention.

Please refer to FIG. 1 and FIG. 5 at the same time. The difference between the filter screen 300 in FIG. 5 and the filter screen 100 in FIG. shape, such as the five-sided ring in Figure 5. The materials and functions of the filter 300 in FIG. 5 are substantially the same as those of the filter 100 in FIG. 1 , so details will not be repeated here.

Similarly, since the filter screen 300 has a larger surface area, the filtering efficiency can be effectively improved. In addition, since the filter screen 300 converges to a point along a straight line from the bottom 302 to the top 304 , the impurities can easily slide down to the bottom, so the filtering efficiency can be greatly improved.

In summary, the above embodiment has at least the following advantages:

1. The filter screen of the present invention can effectively improve the filtration efficiency.

2. The fluid circulation device of the present invention can save pump maintenance and replacement costs.

3. The fluid circulation device of the present invention can effectively improve production efficiency and prevent the problem of product scrapping due to process interruption.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection should depend on the scope defined in the claims.

Claims (20)

1. A strainer, characterized in that the appearance of the strainer is conical, and includes a bottom and a top, the bottom is ring-shaped, and the strainer converges from the bottom to the top along a straight line to a little. 2. The filter screen according to claim 1, characterized in that the longitudinal section of the filter screen is in an inverted V shape. 3. The filter screen according to claim 1, wherein the slope of the filter screen is greater than or equal to 1. 4. The filter screen according to claim 1, characterized in that, the annular shape is circular or polygonal. 5. The filter according to claim 1, wherein the material of the filter comprises metal. 6. The filter according to claim 1, wherein the material of the filter comprises Teflon. 7. A fluid circulation device, suitable for transporting a fluid, characterized in that it comprises: a pump; a pipeline connected to the pump; and A filter screen fixed in the pipeline, wherein the filter screen is conical in appearance and includes a bottom and a top, the bottom is in a ring shape, and the filter screen converges along a straight line from the bottom to the top to one point. 8. The fluid circulation device according to claim 7, further comprising an adapter for connecting the pipeline with the pump. 9. The fluid circulation device according to claim 7, further comprising a sealing element disposed at the connection between the pipeline and the pump. 10. The fluid circulation device of claim 9, wherein the sealing element comprises an O-ring. 11. The fluid circulation device according to claim 9, wherein the material of the sealing element includes rubber. 12. The fluid circulation device according to claim 7, wherein the top of the filter screen points in a direction opposite to the flow direction of the fluid. 13. The fluid circulation device according to claim 7, wherein the top of the filter net points in the same direction as the fluid flows. 14. The fluid circulation device according to claim 7, wherein the filter screen is fixed on an end of the pipeline close to the pump. 15. The fluid circulation device according to claim 7, wherein the fixing method of the filter screen in the pipeline includes welding. 16. The fluid circulation device according to claim 7, characterized in that the longitudinal section of the filter screen is in an inverted V shape. 17. The fluid circulation device according to claim 7, wherein the slope of the filter screen is greater than or equal to 1. 18. The fluid circulation device according to claim 7, characterized in that, the annular shape is circular or polygonal. 19. The fluid circulation device according to claim 7, wherein the material of the filter screen comprises metal. 20. The fluid circulation device according to claim 7, wherein the material of the filter net comprises Teflon.

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