CN204933028U - Filter - Google Patents

Abstract

The utility model relates to a filter belongs to pipeline technical field. The filter includes: a housing and a filter basket; the shell is provided with a liquid inlet and a liquid outlet; the filter basket is arranged in the shell, the filter basket divides the shell into a liquid inlet cavity and a liquid outlet cavity, the liquid inlet cavity is communicated with the liquid inlet, and the liquid outlet cavity is communicated with the liquid outlet; be provided with the drain that can open and shut in the feed liquor chamber, when filtering, the drain is closed, and when wasing the filter, the inlet is closed, and the drain is opened, can wash the filter by the rivers that the liquid outlet pours into in to the casing. The utility model solves the problems that the shell of the filter needs to be opened when the filter is cleaned in the related technology, the cleaning process is more complicated and the cleaning efficiency is lower by arranging the drain outlet in the liquid inlet cavity; the effects of simple process of cleaning the filter and high cleaning efficiency are achieved.

Description

filter

technical field

The utility model relates to the technical field of pipelines, in particular to a filter.

Background technique

During the transportation of oil well produced fluid, it is usually necessary to install filters on the liquid inlets of equipment such as centrifugal pumps and flowmeters to prevent impurities in the produced fluid from damaging equipment such as centrifugal pumps and flowmeters.

There is a filter in the related art. The filter includes a housing and a filter basket. The filter basket is arranged in the housing. The housing is provided with a liquid inlet and a liquid outlet. The oil well output fluid flows into the housing from the liquid inlet. After being filtered by the filter basket, it flows out from the liquid outlet to complete the filtration of the oil well output fluid.

In the process of realizing the utility model, the inventor found that the above-mentioned method has at least the following defects: when the above-mentioned filter filters the oil well output fluid, the impurities in the oil well output fluid will accumulate in the filter basket. , the filter basket needs to be taken out from the housing for cleaning, and the cleaning process is relatively complicated and the cleaning efficiency is low.

Utility model content

In order to solve the problems in the related art that the cleaning process of the filter basket of the filter is relatively complicated and the cleaning efficiency is low, the utility model provides a filter. Described technical scheme is as follows:

According to a first aspect of the utility model, a filter is provided, the filter comprising:

Housing and filter basket;

The housing is provided with a liquid inlet and a liquid outlet;

The filter basket is arranged in the housing, and the filter basket divides the housing into a liquid inlet chamber and a liquid outlet chamber, the liquid inlet chamber communicates with the liquid inlet port, and the liquid outlet chamber communicates with the liquid outlet chamber The liquid outlet is connected;

The liquid inlet chamber is provided with a sewage outlet that can be switched. When filtering, the sewage outlet is closed. When cleaning the filter, the liquid inlet is closed, and the sewage outlet is opened. The water flow injected into the housing can clean the filter.

Optionally, the housing is a hollow cylinder, the filter basket is a tubular body, the axis of the housing is parallel to the axis of the filter basket,

The outer edge of the opening at one end of the filter basket is sealingly connected to the side wall of the housing and communicated with the liquid inlet;

The opening at the other end of the filter basket is in sealing connection with the bottom of the housing, and the area of the bottom of the housing surrounded by the filter basket is provided with the sewage outlet.

Optionally, a detachable sealing cover is buckled on the top of the housing;

A handle is provided on the outside of the sealing cover.

Optionally, the bottom of the housing is provided with a card slot;

The opening at the other end of the filter basket is in sealing connection with the bottom of the housing through the slot.

Optionally, the plane where the opening at one end of the filter basket is located is not parallel to the plane where the opening at the other end of the filter basket is located.

Optionally, both the liquid inlet and the liquid outlet are circular ports, and axes of the liquid inlet and the liquid outlet are collinear.

Optionally, a press ring is provided on the outer edge of the opening at one end of the filter basket, and an annular protruding structure coaxial with the press ring is provided on the side wall of the housing,

The pressing ring is sealingly connected with the annular raised structure.

Optionally, the sealing cover is bolted to the housing.

The technical solution provided by the utility model can include the following beneficial effects:

By setting the sewage outlet in the liquid inlet chamber, when cleaning the filter, open the sewage outlet, close the liquid inlet, and inject water flow into the filter housing from the liquid outlet, the water flow can clean the filter and drain the filter basket The debris is washed away from the sewage outlet, which solves the problem that the filter shell needs to be opened when cleaning the filter in the related technology, the cleaning process is more complicated, and the cleaning efficiency is low; the cleaning process of the filter is simple and the cleaning efficiency is high. Effect.

It should be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

Description of drawings

The accompanying drawings, which are incorporated in the specification and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and are used together with the specification to explain the principle of the utility model.

Fig. 1 is the structural representation of a kind of filter shown in the utility model embodiment;

Fig. 2-1 is a schematic structural view of another filter shown in the embodiment of the present invention;

Figure 2-2 is a left view of the filter shown in Figure 2-1;

Figure 2-3 is a top view of the filter shown in Figure 2-1;

Figure 2-4 is a bottom view of the filter shown in Figure 2-1.

The specific embodiments of the present invention have been shown through the above-mentioned drawings, and will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the utility model concept in any way, but to illustrate the concept of the utility model for those skilled in the art by referring to specific embodiments.

detailed description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of devices and methods consistent with aspects of the invention as recited in the appended claims.

Fig. 1 is a schematic structural view of a filter shown in an embodiment of the present invention, the filter may include:

Housing 110 and filter basket 120 .

The housing 110 is provided with a liquid inlet 111 and a liquid outlet 112 .

The filter basket 120 is arranged in the housing 110, and the filter basket 120 divides the housing 110 into a liquid inlet chamber q ₁ and a liquid outlet chamber q ₂ , the liquid inlet chamber q ₁ is connected to the liquid inlet 111, and the liquid outlet chamber q ₂ is connected to the outlet chamber q 2 The liquid port 112 communicates.

The sewage outlet 113 that can be opened and closed is arranged in the liquid inlet chamber _q1 . When filtering, the sewage outlet 113 is closed. When cleaning the filter, the liquid inlet 111 is closed, and the sewage outlet 113 is opened. The water flow injected into 110 can clean the filter.

To sum up, in the filter provided by the embodiment of the present invention, by setting the sewage outlet in the liquid inlet cavity, when cleaning the filter, the sewage outlet is opened, the liquid inlet is closed, and the water is discharged from the liquid outlet into the filter housing. Injecting water flow, the water flow can clean the filter and wash away the debris in the filter basket from the sewage outlet, which solves the need to open the filter shell when cleaning the filter in the related art, the cleaning process is more complicated, and the cleaning efficiency is low problem; the process of cleaning the filter is simple and the effect of high cleaning efficiency is achieved.

Further, please refer to Figure 2-1, which shows a schematic structural diagram of another filter provided by the embodiment of the present invention, which adds more preferred components on the basis of the filter shown in Figure 1 , so that the filter provided by the embodiment of the utility model has better performance.

Optionally, the housing 110 is a hollow cylinder, and the filter basket 120 is a tubular body, that is, the filter basket 120 is a bottomless filter basket. The axis of the housing 110 is parallel to the axis of the filter basket. What is shown in Figure 2-1 is the case where the axis of the housing 110 coincides with the axis of the filter basket 120. The axis of the housing 110 and the axis of the filter basket 120 are both z ₁ . The filter basket 120 can be made of single or multiple layers of metal mesh.

The outer edge of the opening k at one end of the filter basket 120 is sealingly connected with the side wall c of the housing 110 and communicated with the liquid inlet 111; the opening at the other end of the filter basket 120 is sealingly connected with the bottom d of the housing 110, and the housing 110 The area surrounded by the filter basket 120 is provided with a sewage outlet 113 .

Optionally, a pressure ring 121 is provided on the outer edge of the opening k at one end of the filter basket 120, and an annular protruding structure 115 coaxial with the pressure ring 121 is provided on the side wall c of the housing 110. The pressure ring 121 and the annular protrusion Structure 115 is hermetically connected. The liquid outlet cavity q ₂ may be an annular cavity formed by the filter basket 120 , the bottom d of the housing 110 , the side wall c of the housing 110 and the annular protruding structure 115 .

Optionally, a detachable sealing cover 130 is fastened on the top of the housing 110 ; a handle 131 is provided on the outside of the sealing cover 130 .

Optionally, the sealing cover 130 is bolted to the housing 110 . When the filter basket 120 is damaged, you can unscrew the bolts connecting the sealing cover 130 and the housing 110, open the sealing cover 130 through the handle 131, take out the filter basket 120, install a new filter basket in the housing 110, and finally reinstall the filter basket 120. The sealing cover 130 is connected to the housing 110 by bolts to complete the replacement of the filter basket.

Optionally, the bottom d of the housing 110 is provided with a slot 114 ; the opening at the other end of the filter basket 120 is in sealing connection with the bottom d of the housing 110 through the slot 114 . The slot 114 can facilitate the sealing connection between the opening at the other end of the filter basket 120 and the bottom d of the casing 110 .

Optionally, both the liquid inlet 111 and the liquid outlet 112 are circular ports, and the axes z ₂ of the liquid inlet 111 and the liquid outlet 112 are collinear, which can facilitate the processing and manufacturing of the housing 110 .

Optionally, the plane a where the opening k at one end of the filter basket 120 is located is not parallel to the plane b where the opening k at the other end of the filter basket 120 is located. Optionally, the axis z ₂ of the liquid inlet 111 and the liquid outlet 112 passes through the opening k, so that the liquid flowing into the liquid inlet chamber q ₁ from the liquid inlet 111 can flow into the filter basket 120 conveniently.

As shown in Figure 2-2, it is the left view of the filter shown in Figure 2-1, wherein the liquid inlet 111 is set on the housing 110, and the top of the housing 110 is buckled with a sealing cover 130, and the sealing cover 130 is outside A handle 131 is provided.

As shown in FIG. 2-3 , which is a top view of the filter shown in FIG. 2-1 , there may be two handles 131 provided outside the sealing cover 130 .

Also as shown in Fig. 2-4, which is a bottom view of the filter shown in Fig. 2-1, wherein the housing is provided with a liquid inlet 111 and a liquid outlet 112, and a sewage outlet 113 is provided at the bottom.

It needs to be added that the filter provided by the embodiment of the present invention achieves the effect of convenient replacement of the filter basket by providing a detachable sealing cover on the top of the housing.

It should be added that the filter provided by the embodiment of the utility model seals the opening at the other end of the filter basket of the tubular body with the bottom of the filter housing, so that the impurities filtered by the filter basket are accumulated at the bottom of the housing. In addition, the bottom of the housing is provided with a sewage discharge port, which achieves the effect of conveniently discharging impurities from the sewage discharge port.

To sum up, in the filter provided by the embodiment of the present invention, by setting the sewage outlet in the liquid inlet cavity, when cleaning the filter, the sewage outlet is opened, the liquid inlet is closed, and the water is discharged from the liquid outlet into the filter housing. Injecting water flow, the water flow can clean the filter and wash away the debris in the filter basket from the sewage outlet, which solves the need to open the filter shell when cleaning the filter in the related art, the cleaning process is more complicated, and the cleaning efficiency is low The problem; the process of cleaning the filter is simple and the effect of high cleaning efficiency is achieved.

Now take the filter shown in Figure 2-1 as an example to filter the oil well produced fluid, and explain the working process of the filter.

1. During normal filtration: the sewage outlet 113 is closed, and the oil well output fluid enters the filter basket 120 from the left liquid inlet 111 through the liquid inlet chamber _q1 , and the oil well output fluid filtered by the filter basket 120 flows into the output fluid The cavity _q2 flows out from the liquid outlet 112 on the right, while the filtered sediment and other insoluble impurities naturally settle to the bottom d of the housing 110, and the soluble impurities such as wax adhere to the surface of the filter basket 120.

2. When cleaning the filter: when the filter basket 120 is blocked by impurities, and the pressure difference between the liquid inlet 111 and the liquid outlet 112 exceeds 0.05MPa (MPa), you can stop using the filter and close the liquid inlet 111. Prepare to clean the clogged filter basket 120. The cleaning process can be:

1) Open the sewage outlet 113.

₂ ) Inject hot water from the liquid outlet 112 into the liquid inlet chamber q2, and use hot water to backwash the filter basket 120 until all the wax on the filter basket 120 melts. It should be noted that when injecting hot water from the liquid outlet 112 into the liquid inlet chamber q ₂ , the liquid outlet 112 needs to be opened slowly to protect the filter basket 120 from being damaged by the water flow with excessive pressure.

3) The liquid entering the casing 110 flows out through the sewage outlet 113 .

4) If the effect after backwashing is unsatisfactory, repeat step 2) and step 3) until the filter basket 120 is cleaned.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (8)

1. A filter, characterized in that the filter comprises: Housing and filter basket; The housing is provided with a liquid inlet and a liquid outlet; The filter basket is arranged in the housing, and the filter basket divides the housing into a liquid inlet chamber and a liquid outlet chamber, the liquid inlet chamber communicates with the liquid inlet port, and the liquid outlet chamber communicates with the liquid outlet chamber The liquid outlet is connected; The liquid inlet chamber is provided with a sewage outlet that can be switched. When filtering, the sewage outlet is closed. When cleaning the filter, the liquid inlet is closed, and the sewage outlet is opened. The water flow injected into the housing can clean the filter. 2. The filter according to claim 1, wherein the housing is a hollow cylinder, the filter basket is a tubular body, the axis of the housing is parallel to the axis of the filter basket, The outer edge of the opening at one end of the filter basket is sealingly connected to the side wall of the housing and communicated with the liquid inlet; The opening at the other end of the filter basket is in sealing connection with the bottom of the housing, and the area of the bottom of the housing surrounded by the filter basket is provided with the sewage outlet. 3. The filter according to claim 2, characterized in that, The top of the housing is buckled with a detachable sealing cover; A handle is provided on the outside of the sealing cover. 4. The filter according to claim 2, characterized in that, The bottom of the housing is provided with a card slot; The opening at the other end of the filter basket is in sealing connection with the bottom of the housing through the slot. 5. The filter according to claim 2, characterized in that, The plane where the opening at one end of the filter basket is located is not parallel to the plane where the opening at the other end of the filter basket is located. 6. The filter according to claim 5, characterized in that, Both the liquid inlet and the liquid outlet are circular openings, and axes of the liquid inlet and the liquid outlet are collinear. 7. The filter according to claim 2, characterized in that a pressure ring is provided on the outer edge of the opening at one end of the filter basket, and an annular ring coaxial with the pressure ring is provided on the side wall of the housing. raised structure, The pressing ring is sealingly connected with the annular raised structure. 8. The filter according to claim 3, wherein the sealing cover is bolted to the housing.