CN207786069U - Filter device - Google Patents

Abstract

The utility model provides a filtering device, include: the filter body is provided with a mounting cavity, and an outlet connecting pipe and an inlet connecting pipe which are communicated with the mounting cavity; the filter screen, the filter screen is the cylindric and hangs in the filter body, and the entry takeover is located the open-ended top of filter screen, and the filter screen shelters from the export takeover, and the solid-liquid mixture that gets into the filter body by the entry takeover directly gets into in the filter screen through the opening of filter screen to the material after the filter screen separation is taken over through installation cavity, export and is flowed. The utility model provides a problem that fluid filtration efficiency among the prior art is low.

Description

filter device

technical field

The utility model relates to the technical field of petroleum equipment, in particular to a filtering device.

Background technique

Based on the fluid filtration technology, combined with the characteristics of the discharge filter of the termination tank of the acrylic fiber polymerization unit, the background technology is described as follows:

1. Overview and application of the discharge filter of the termination tank:

The polymerization termination system is composed of a termination tank, a discharge filter and a termination slurry pump. The device has four sets of termination systems in parallel. Each termination system has a production line, including two discharge filters, and implements "one open and one standby" Operation plan to achieve continuous and controlled operation of production. As an intermediate link between the polymerization reaction and the single-off reaction, the termination reaction and the filtering effect of the filter have a direct impact on the quality of the slurry after the polymerization reaction, and there are certain restrictions on the termination of the slurry pump and the smooth operation of the single-off reaction, while the termination of the discharge filter As the link between the termination tank and the termination slurry pump in the termination system, its structure, operation and filtering effect directly determine whether the termination system can continue to run smoothly.

The filter structure used in the termination system is in the form of a basket, model RK-1230, size 305x485x485, the main material is SUS316L, produced by CHEMTEX JAPAN K.K, the center height of the filter inlet is 305mm, the height of the filter is 485mm, and the height of the filter screen is 485mm.

There is a basket filter inside the filter, through which the polymer slurry after the termination reaction is filtered to remove large particle materials or impurities in the polymer slurry, so as to ensure the uniformity of the slurry entering the termination slurry pump and avoid large particle materials or The blockage of the pump caused by impurities will affect the subsequent production.

2. Problems in background sealing technology:

The filter screen of the discharge filter of the termination tank is placed directly at the bottom of the filter, which may easily lead to material deposition in the lower part of the filter, and there is a large gap between the filter body and the upper cover and the filter screen, which may easily cause particles and impurities in the filtered material to pass directly around the filter screen The outlet enters the machine pump, causing the machine pump to be blocked, resulting in unplanned shutdown of the termination system.

It can be seen that the filtering device in the prior art has the problem of low fluid filtering efficiency.

Utility model content

The main purpose of the utility model is to provide a filtering device to solve the problem of low fluid filtering efficiency in the prior art.

In order to achieve the above object, according to one aspect of the present invention, a filter device is provided, including: a filter body, the filter body has an installation cavity and an outlet connection pipe and an inlet connection connection with the installation cavity; a filter screen, the filter screen is Cylindrical and suspended in the filter body, and the inlet connection is located above the opening of the filter screen, the filter screen covers the outlet connection, the solid-liquid mixture entering the filter body from the inlet connection directly enters the filter screen through the opening of the filter screen, And the material separated by the filter screen flows out through the installation chamber and the outlet connection.

Further, a mounting bracket is arranged inside the filter body, and the filter screen is suspended on the mounting bracket.

Further, an installation flange is provided at the edge where the opening of the filter screen is located, and the installation flange is supported on the installation bracket.

Further, the shape of the outer edge of the mounting flange is adapted to the inner wall of the filter body.

Further, the mounting bracket is an annular support flange protruding from the inner wall of the filter body toward the center or a plurality of support projections arranged at intervals around the circumference of the filter body.

Further, the opening is arranged obliquely and forms an angle of 30 degrees with the bottom plate of the filter body.

Further, the outlet connecting pipe and/or the inlet connecting pipe is a reducing pipe, and the diameter of the reducing pipe decreases gradually along the direction away from the installation cavity.

Further, the filtering device also includes an extracting handle, which is installed on the filter net.

Further, the filter device further includes: a filter upper cover, the filter upper cover is arranged at the top opening of the filter body; a flushing connector, the flushing connector is arranged on the filter upper cover.

Further, the filter device further includes a discharge joint, which is arranged at the bottom of the filter body and can communicate with the installation cavity.

Applying the technical solution of the utility model, the filter device includes a filter body and a filter screen, the filter body has an installation cavity and an outlet connecting pipe and an inlet connecting pipe communicated with the installation cavity; the filter screen is cylindrical and suspended in the filter body, and The inlet connecting pipe is located above the opening of the filter screen, and the filter screen blocks the outlet connecting pipe. The solid-liquid mixture entering the filter body through the inlet connecting pipe directly enters the filter screen through the opening of the filter screen, and the material separated by the filter screen passes through the installation cavity. , The outlet takes over the outflow.

Since the filter body is equipped with a filter screen, the solid mixture can be filtered in the filter screen, and the large-diameter particles and impurities are separated to prevent them from entering the pump, causing the pump to be blocked and causing machine failure. The filter screen is suspended in the filter body, which can effectively avoid material deposition in the lower part of the filter body due to the filter screen being placed in the lower part of the filter body. In addition, the inlet connecting pipe is located above the opening of the filter screen, and the filter screen blocks the outlet connecting pipe. , In this way, it is ensured that all the solid mixture entering through the inlet pipe can be fully filtered in the filter screen and then discharged, so that the filtering effect is better.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 shows a schematic structural view of a filtering device according to an embodiment of the present invention; and

Fig. 2 shows a schematic structural view of the filter screen in Fig. 1 .

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Filter body; 20. Outlet connection; 30. Inlet connection; 40. Filter screen; 50. Installation bracket; 60. Installation flange; 70. Extraction handle; 80. Filter cover; , Discharge joint; 110, upper cover flange; 120, upper cover gasket.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

In the present utility model, in the case of no contrary description, the used orientation words such as "upper, lower, top, bottom" are usually for the direction shown in the drawings, or for the vertical position of the component itself. , vertically or in the direction of gravity; similarly, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the outline of each component itself, but the above-mentioned orientation words are not used to limit the utility model.

In order to solve the problem of low fluid filtering efficiency in the prior art, the utility model provides a filtering device.

As shown in Figures 1 and 2, the filter device includes a filter body 10 and a filter screen 40. The filter body 10 has an installation cavity and an outlet connecting pipe 20 and an inlet connecting pipe 30 communicating with the installation cavity; the filter screen 40 is cylindrical and suspended In the filter body 10, and the inlet connecting pipe 30 is positioned above the opening of the filter screen 40, the filter screen 40 blocks the outlet connecting pipe 20, and the solid-liquid mixture entering the filter body 10 by the inlet connecting pipe 30 directly enters through the opening of the filter screen 40. In the filter screen 40 , the material separated by the filter screen 40 flows out through the installation chamber and the outlet connecting pipe 20 .

Since the filter body 10 is equipped with a filter screen 40, the solid mixture can be filtered in the filter screen 40, and large-diameter particles and impurities are separated, thereby preventing them from entering the pump, causing the pump to be blocked, and causing machine failure. . Wherein the filter screen 40 is suspended in the filter body 10, which can effectively avoid material deposition at the lower part of the filter body 10 due to the filter screen 40 being placed at the bottom of the filter body 10. In addition, the inlet connecting pipe 30 is located above the opening of the filter screen 40 , and the filter screen 40 blocks the outlet connecting pipe 20, thus ensuring that all the solid mixture entering through the inlet connecting pipe 30 can be fully filtered in the filter screen 40 and then discharged, so that the filtering effect is better.

Preferably, the diameter of the filter body 10 remains unchanged, and its height _H1 is reduced from 485mm to 325mm. The upper part of the filter body 10 is reduced by 60mm, and the lower part is reduced by 100mm. At the same time, the height of the filter discharge port is raised, which is convenient for filter maintenance and inspection.

As shown in FIG. 1 , a mounting bracket 50 is disposed inside the filter body 10 , and the filter screen 40 is suspended on the mounting bracket 50 . Because the mounting frame has a supporting function, the filter screen 40 can be hung on the mounting frame, which ensures that the filter screen 40 can be suspended in the air, and effectively avoids the material in the lower part of the filter body 10 caused by the filter screen 40 being placed at the bottom of the filter body 10. deposition.

Preferably, the width of the mounting bracket 50 is 10mm.

As shown in FIG. 2 , an installation flange 60 is provided at the edge where the opening of the filter screen 40 is located, and the installation flange 60 is supported on the installation bracket 50 . The installation flange 60 cooperates with the installation bracket 50 to facilitate the hanging of the filter screen 40 on the installation bracket 50 .

Preferably, the width of the mounting flange 60 is 10mm.

As shown in FIGS. 1 and 2 , the shape of the outer edge of the mounting flange 60 matches the inner wall of the filter body 10 . In this way, the tight connection between the filter screen 40 and the filter body 10 is ensured, the particles and impurities in the filter material are prevented from directly bypassing the filter screen 40, and the filtering effect of the filter device is improved.

Preferably, the mounting bracket 50 is an annular support flange protruding from the inner wall of the filter body 10 toward the center or a plurality of support projections arranged at intervals around the circumference of the filter body 10 . In this way, the mounting bracket 50 can disperse the force, avoid damage caused by uneven force, and improve the reliability of the mounting bracket 50 .

As shown in FIG. 1 and FIG. 2 , the opening is arranged obliquely and forms an angle of 30 degrees with the bottom plate of the filter body 10 . It is beneficial for the liquid to enter the filter screen 40 for filtration, and at the same time, ensure that the outflowing liquid is filtered through the filter screen 40, effectively avoiding insufficient filtration, and further improving the filtering effect.

Preferably, the diameter of the filter screen 40 remains unchanged, and its height is reduced from 485mm to 315mm for _H2 and _155mm for H3.

As shown in FIG. 1 , the outlet connecting pipe 20 and/or the inlet connecting pipe 30 are reduced diameter pipes, and the diameter of the reduced diameter pipe decreases gradually along the direction away from the installation cavity. On the one hand, it has the function of drainage, on the other hand, it can buffer the filter material flowing into the filter body 10, and increase the flow rate of the filter material flowing out of the filter body 10, thereby increasing the filtration efficiency and filter effects.

Preferably, the inlet connection 30DN80mm diameter _R1 is changed to DN80 to DN150mm variable diameter interface, the outlet connection 20DN80mm is changed to DN150 to DN80mm variable diameter interface through _R2 , and the outlet connection 20 and/or the inlet connection 30 is changed from the diameter to the diameter , play a buffering role on the materials entering and leaving the filter body 10, which is beneficial to the filtering of materials.

As shown in FIG. 2 , the filtering device further includes an extraction handle 70 installed on the filter screen 40 . Since the extraction handle 70 is provided, the installation and inspection and maintenance of the filter screen 40 are convenient.

As shown in FIG. 1 , the filter device further includes a filter upper cover 80 and a flushing connector 90 , the filter upper cover 80 is set on the top opening of the filter body 10 ; the flushing connector 90 is arranged on the filter upper cover 80 . The filter upper cover 80 seals the filter body 10 to prevent leakage of the filter material, and prevents external pollutants from entering the filter body 10 and polluting the filter material in the filter body 10 .

Preferably, the flushing joint 90 is a 6-point inner threading head with a length of 36 mm, and is equipped with a 6-point screw plug matched therewith.

As shown in FIG. 1 , the filter device further includes a discharge joint 100 , which is arranged at the bottom of the filter body 10 and can communicate with the installation cavity. When cleaning the filter, the filter material is discharged from the discharge joint 100, and the cleaning is more convenient and more thorough.

Preferably, the discharge joint 100 is a 6-point internal threading head with a length of 36 mm, and is equipped with a 6-point plug that matches it. The discharge joint 100 is 35 mm higher than the bottom surface of the filter body 10, so as to avoid blocking the discharge joint 100 when discharging the filtrate. .

As shown in Figure 1, the filter device also includes an upper cover flange 110 and an upper cover gasket 120, the filter upper cover 80, the upper cover gasket 120, and the upper cover flange 110 are sequentially stacked and connected on the top of the filter body 10 opening. In this way, the filter device can be better sealed to prevent leakage of the filter material, and prevent external pollutants from entering the interior of the filter body 10 to cause pollution.

Preferably, the filter upper cover 80, the upper cover gasket 120, and the upper cover flange 110 are connected by fastening bolts, the specification of the filter upper cover 80 is DN375*3mm, and the specification of the upper cover gasket 120 is ф375*ф280* 3mm, connecting bolts are M12*40, 8 evenly distributed.

As shown in Figure 1, the filter device also includes an inlet connecting pipe 30 flange and an outlet connecting pipe 20 flange, the inlet connecting pipe 30 flange is arranged on the end of the inlet connecting pipe 30 away from the filter body 10; the outlet connecting pipe 20 flange is arranged on the outlet connecting pipe 20 away from the end of the filter body 10. The flange of the inlet connecting pipe 30 and the flange of the outlet connecting pipe 20 are respectively fixedly connected to the inlet and the outlet of the filter to prevent liquid leakage, the structure is simple, and the operation is convenient.

Preferably, the flange of the inlet connecting pipe 30 is connected to the flange of the feed line by fastening bolts, the flange of the outlet connecting pipe 20 is connected to the flange of the discharge line by fastening bolts, and the specifications of the flange of the inlet connecting pipe 30 and the flange of the outlet connecting pipe 20 It is DN80mm, the gasket specification is ф138*ф89*3mm, the connecting bolts are M16*80, and 8 pieces are evenly distributed.

It should be noted that when installing the filter screen 40, it must be ensured that the outer edge of the filter screen 40 is well sealed with the mounting bracket 50, there is no deformation or opening, and the inlet and outlet are installed correctly; when cleaning the filter screen 40, use special cleaning tools, do not The filter screen 40 may be struck with a hammer or the like.

From the above description, it can be seen that the above-mentioned embodiments of the utility model have achieved the following technical effects:

By using the modified filter device, the problem of low filtration efficiency of the filter device can be effectively solved, material deposition in the lower part of the filter body 10 is avoided, and particles and impurities in the filter material are prevented from entering the pump directly around the filter screen 40, causing The blockage of the machine and pump has promoted the long-term operation of the termination system to a certain extent.

Apparently, the above-described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a kind of filter device, which is characterized in that including：

Filter body (10), the discharge connection that the filter body (10) has installation cavity and is connected to the installation cavity (20) and inlet connection (30)；

Strainer (40), the strainer (40) is cylindrical in shape and is suspended in the filter body (10), and the inlet connection (30) it is located at the top of the opening of the strainer (40), the strainer (40) blocks the discharge connection (20), by the entrance It takes over the solidliquid mixture that (30) enter in the filter body (10) and institute is directly entered by the opening of the strainer (40) It states in strainer (40), and the substance after the strainer (40) separation is flowed out through the installation cavity, the discharge connection (20).

2. filter device according to claim 1, which is characterized in that be provided with installation branch in the filter body (10) Frame (50), the strainer (40) are suspended in the mounting bracket (50).

3. filter device according to claim 2, which is characterized in that the edge where the opening of the strainer (40) is set It is equipped with mounting flange (60), the mounting flange (60) is supported in the mounting bracket (50).

4. filter device according to claim 3, which is characterized in that the outer edge of the mounting flange (60) and the mistake Shape is adapted between the inner wall of filter body (10).

5. filter device according to claim 2, which is characterized in that the mounting bracket (50) is by the filter sheet The inner wall of body (10) stretches out annular support flange or multiple around the circumferentially spaced of the filter body (10) to center Supporting lug.

6. filter device according to any one of claim 1 to 5, which is characterized in that it is described opening be obliquely installed and with The angle formed between the bottom plate of the filter body (10) is 30 degree.

7. filter device according to any one of claim 1 to 5, which is characterized in that the discharge connection (20) and/or The inlet connection (30) is reducer pipe, and the diameter of the reducer pipe is gradually reduced along the direction far from the installation cavity.

8. filter device according to any one of claim 1 to 5, which is characterized in that the filter device further includes carrying Handle (70), the extraction handle (70) is taken to be mounted on the strainer (40).

9. filter device according to any one of claim 1 to 5, which is characterized in that the filter device further includes：

Filter cover (80), filter cover (80) lid are located at the top open part of the filter body (10)；

Flush-through connection (90), the flush-through connection (90) are arranged on the filter cover (80).

10. filter device according to any one of claim 1 to 5, which is characterized in that the filter device further includes row Put connector (100), discharge joint (100) setting is in the bottom of the filter body (10) and can be with the installation cavity Connection.