Filters

Abstract

The present invention provides a filter, comprising: a filter body, the filter body comprising an upper tank body and a lower tank body, the lower tank body being located below the upper tank body and connected to the upper tank body; wherein a liquid inlet pipe is arranged on the side wall of the lower tank body, and a liquid outlet pipe is arranged on the side wall of the upper tank body; a filter assembly, the filter assembly being arranged in the filter body and between the liquid inlet pipe and the liquid outlet pipe, so that the liquid entering the filter body through the liquid inlet pipe flows out through the liquid outlet pipe after being filtered by the filter assembly. The filter of the present invention solves the problem of poor filtering effect of the filter in the prior art.

Description

Technical Field

[0001] The invention relates to the field of petroleum, and in particular to a filter. Background Art

[0002] At present, the filter equipped in the water injection and dosing room of Luliang Oilfield is mainly composed of a cylindrical filter screen, which can filter impurities with particle sizes larger than the pore size of the filter screen.

[0003] However, the main impurities that cause the failure of the dosing pump and the dosing pipeline are the mud and sand in the solid phase reagent, and the particle size of the mud and sand is smaller than the pore size of the filter mesh. The above-mentioned filter has a poor filtering effect on impurities such as mud and sand. Summary of the invention

[0004] The main purpose of the present invention is to provide a filter to solve the problem of poor filtering effect of the filter in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a filter, comprising: a filter body, the filter body comprising an upper tank body and a lower tank body, the lower tank body is located below the upper tank body and connected to the upper tank body; wherein a liquid inlet pipe is arranged on the side wall of the lower tank body, and a liquid outlet pipe is arranged on the side wall of the upper tank body; a filter assembly, the filter assembly is arranged in the filter body and located between the liquid inlet pipe and the liquid outlet pipe, so that the liquid entering the filter body through the liquid inlet pipe can flow out from the liquid outlet pipe after being filtered by the filter assembly.

[0006] Furthermore, the filter assembly includes: a first filter screen, at least a portion of which is disposed in the filter body, and the first filter screen is disposed at the connection between the upper tank body and the lower tank body so that the liquid enters the upper tank body after passing through the first filter screen.

[0007] Furthermore, the upper tank body includes an upper flange portion, and the lower tank body includes a lower flange portion, the upper flange portion and the lower flange portion are arranged opposite to each other, and the upper tank body and the lower tank body are connected to each other through the upper flange portion and the lower flange portion; the first filter screen includes a filter screen body and a sealing portion arranged around the filter screen body, and the sealing portion is located between the upper flange portion and the lower flange portion to seal the upper tank body and the lower tank body.

[0008] Furthermore, the filter assembly includes: a second filter screen, which is arranged in the upper tank body, so that the liquid flows out from the liquid outlet pipe after passing through the second filter screen.

[0009] Furthermore, a first clamping portion is provided on the inner wall of the upper tank body, the first clamping portion has a first clamping groove, the second filter mesh is matched with the first clamping groove, and the second filter mesh is clamped in the first clamping groove.

[0010] Furthermore, the filter body has a liquid storage space, and the filter also includes: a baffle, which is arranged in the lower tank body, the baffle is located above the liquid inlet pipe, the outer peripheral surface of the baffle is matched with the inner wall of the liquid storage space, and a connecting opening is provided on the baffle to allow the liquid to flow from the lower side of the baffle to the upper side of the baffle through the connecting opening.

[0011] Furthermore, a second clamping portion is provided on the inner wall of the lower tank body, the second clamping portion has a second clamping groove, the baffle plate is matched with the second clamping groove, and the baffle plate is clamped in the second clamping groove.

[0012] Furthermore, the filter also includes: an exhaust valve, which is arranged on the top of the upper tank body.

[0013] Furthermore, the filter also includes: a sewage discharge pipe, the sewage discharge pipe is connected to the sewage discharge port at the bottom of the lower tank body, and a sewage discharge valve is arranged on the sewage discharge pipe to control the on-off of the sewage discharge pipe.

[0014] Furthermore, the filter further comprises: a supporting leg, the supporting legs are multiple, and the multiple supporting legs are evenly arranged around the circumference of the lower tank body.

[0015] The filter of the present invention comprises an upper tank body and a lower tank body, wherein the lower tank body is located below the upper tank body and connected to the upper tank body; wherein a liquid inlet pipe is arranged on the side wall of the lower tank body, and a liquid outlet pipe is arranged on the side wall of the upper tank body; so that the liquid enters the filter body through the liquid inlet pipe and flows out through the liquid outlet pipe; the filter also comprises a filter assembly arranged between the liquid inlet pipe and the liquid outlet pipe, so that the liquid entering the filter body through the liquid inlet pipe flows out through the liquid outlet pipe after being filtered by the filter assembly. The filter facilitates the free sedimentation of fine impurities by allowing the liquid to flow slowly from bottom to top, and the filter assembly ensures further filtration of impurities in the liquid, improves the filtering effect, and avoids impurities from wearing the dosing pump and clogging the pipeline; and, through the separate arrangement of the upper tank body and the lower tank body, it is convenient to clean and replace the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 shows a front view of an embodiment of a filter according to the present invention;

[0018] Figure 2 A top view of an embodiment of a filter according to the invention is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Upper tank body; 11. Upper flange; 111. Upper flange hole; 20. Lower tank body; 21. Lower flange; 30. Liquid inlet pipe; 40. Liquid outlet pipe; 50. First filter screen; 60. Second filter screen; 70. Baffle; 80. Exhaust valve; 90. Drain pipe; 91. Drain valve; 100. Support leg. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] The present invention provides a filter, please refer to Figure 1 and Figure 2 , comprising: a filter body, the filter body comprising an upper tank body 10 and a lower tank body 20, the lower tank body 20 is located below the upper tank body 10 and connected to the upper tank body 10; wherein, a liquid inlet pipe 30 is provided on the side wall of the lower tank body 20, and a liquid outlet pipe 40 is provided on the side wall of the upper tank body 10; a filter assembly, the filter assembly is arranged in the filter body and is located between the liquid inlet pipe 30 and the liquid outlet pipe 40, so that the liquid entering the filter body from the liquid inlet pipe 30 flows out from the liquid outlet pipe 40 after being filtered by the filter assembly.

[0025] The filter of the present invention comprises an upper tank body 10 and a lower tank body 20, wherein the lower tank body 20 is located below the upper tank body 10 and connected to the upper tank body 10; wherein a liquid inlet pipe 30 is arranged on the side wall of the lower tank body 20, and a liquid outlet pipe 40 is arranged on the side wall of the upper tank body 10; so that the liquid enters the filter body through the liquid inlet pipe 30 and flows out through the liquid outlet pipe 40; the filter also comprises a filter assembly arranged between the liquid inlet pipe 30 and the liquid outlet pipe 40, so that the liquid entering the filter body through the liquid inlet pipe 30 flows out through the liquid outlet pipe 40 after being filtered by the filter assembly. The filter facilitates the free sedimentation of fine impurities by making the liquid flow slowly from bottom to top, and the filter assembly ensures further filtration of impurities in the liquid, improves the filtering effect, and avoids the impurities from wearing the dosing pump and clogging the pipeline; and, through the separate arrangement of the upper tank body 10 and the lower tank body 20, it is convenient to clean and replace the filter assembly.

[0026] In a specific implementation, along the circumference of the filter body, the liquid inlet pipe 30 and the liquid outlet pipe 40 are arranged at an interval of 90 degrees.

[0027] In this embodiment, the filter assembly includes a first filter screen 50, at least part of which is disposed in the filter body, and the first filter screen 50 is disposed at the connection between the upper tank body 10 and the lower tank body 20, so that the liquid enters the upper tank body 10 after passing through the first filter screen 50. The first filter screen 50 is disposed between the upper flange portion 11 and the lower flange portion 21, and the first filter screen 50 ensures further filtration of impurities.

[0028] In a specific implementation, the upper tank body 10 includes an upper flange portion 11, and the lower tank body 20 includes a lower flange portion 21. The upper flange portion 11 and the lower flange portion 21 are arranged opposite to each other, and the upper tank body 10 and the lower tank body 20 are connected through the upper flange portion 11 and the lower flange portion 21; the first filter 50 includes a filter body and a sealing portion arranged around the filter body, and the sealing portion is located between the upper flange portion 11 and the lower flange portion 21 to seal the upper tank body 10 and the lower tank body 20. The first filter 50 is arranged to seal the filter body and filter impurities.

[0029] The upper flange portion 11 has a plurality of upper flange holes 111 , and the lower flange portion 21 has a plurality of lower flange holes. The upper flange portion 11 and the lower flange portion 21 are connected via the upper flange holes 111 and the lower flange holes.

[0030] In a specific implementation, the filter body has a liquid storage space, the filter body of the first filter 50 is matched with the liquid storage space, and the filter body is a disc-shaped structure.

[0031] Preferably, the first filter screen 50 is made of plastic material.

[0032] In this embodiment, the filter assembly includes a second filter screen 60, which is disposed in the upper tank body 10, so that the liquid flows out from the liquid outlet pipe 40 after passing through the second filter screen 60. The second filter screen 60 ensures further filtering of impurities.

[0033] In order to fix the second filter 60, a first clamping portion is provided on the inner wall of the upper tank body 10. The first clamping portion has a first clamping groove. The second filter 60 is matched with the first clamping groove, and the second filter 60 is clamped in the first clamping groove.

[0034] In a specific implementation, the first clamping portion includes a plurality of first clamping rod groups, each first clamping rod group includes two first clamping rods, a first clamping gap is provided between the two first clamping rods, the second filter screen 60 is clamped in the first clamping gap, and a plurality of first clamping rod groups are arranged around the inner wall of the upper tank body 10 to form a first clamping groove.

[0035] Preferably, there are three first clamping rod groups, and the three first clamping rod groups are evenly arranged around the inner wall of the upper tank body 10 .

[0036] In a specific implementation, the filter body has a liquid storage space, the side wall of the second filter screen 60 is matched with the inner wall of the liquid storage space, and the second filter screen 60 is a disc-shaped structure.

[0037] In this embodiment, the filter body has a liquid storage space, and the filter further includes a baffle 70, which is arranged in the lower tank 20, and the baffle 70 is located above the liquid inlet pipe 30. The outer peripheral surface of the baffle 70 is matched with the inner wall of the liquid storage space, and a communication opening is provided on the baffle 70, so that the liquid flows from the lower side of the baffle 70 to the upper side of the baffle 70 through the communication opening. The baffle 70 slows down the flow of liquid, which is conducive to the sedimentation of impurities.

[0038] In order to fix the baffle 70 , a second clamping portion is provided on the inner wall of the lower tank body 20 . The second clamping portion has a second clamping groove. The baffle 70 matches the second clamping groove, and the baffle 70 is clamped in the second clamping groove.

[0039] In a specific implementation, the second clamping portion includes a plurality of second clamping rod groups, each second clamping rod group includes two second clamping rods, a second clamping gap is provided between the two second clamping rods, a baffle 70 is inserted into the second clamping gap, and a plurality of second clamping rod groups are arranged around the inner wall of the upper tank body 10 to form a second clamping groove.

[0040] Preferably, there are three groups of second clamping rods, and the three groups of second clamping rods are evenly arranged around the inner wall of the lower tank body 20 .

[0041] In this embodiment, the filter further includes an exhaust valve 80, which is disposed on the top of the upper tank 10. Such an arrangement balances the internal and external pressures of the filter body.

[0042] In this embodiment, the filter further includes a sewage pipe 90, which is connected to the sewage outlet at the bottom of the lower tank 20. A sewage valve 91 is provided on the sewage pipe 90 to control the on and off of the sewage pipe 90. The sewage valve 91 is opened when cleaning the filter body, which is convenient for cleaning.

[0043] In addition, the filter body and its parts can be cleaned by disassembling the upper tank body 10 and the lower tank body 20 .

[0044] In order to support the filter body, the filter further includes a supporting leg 100 . There are a plurality of supporting legs 100 , and the plurality of supporting legs 100 are evenly arranged around the circumference of the lower tank body 20 .

[0045] The filter principle of the present invention is as follows: the liquid medicine containing impurities enters the filter body through the liquid inlet pipe 30, and passes through the buffering sedimentation of the baffle 70 from bottom to top, the primary filtration of the first filter 50, and the secondary filtration of the second filter 60. The clean liquid medicine enters the dosing pump through the liquid outlet pipe 40. The inner diameter of the upper tank body and the lower tank body is about 10 times the inner diameter of the pipeline. The slow flow of the liquid medicine from bottom to top in the filter body is conducive to the free sedimentation of fine impurities. The baffle 70 slows down the flow of the liquid medicine, which is conducive to the sedimentation of impurities. The first filter 50 and the second filter 60 ensure further filtration of impurities. The exhaust valve 80 opens when the filter body is filled with liquid to balance the pressure inside and outside the filter body. The drain valve 91 opens when cleaning the filter body, which is convenient for cleaning.

[0046] The invention discloses a filter for filtering out solid-phase impurities in the water injection and drug dosing room of oil fields, which solves the problem that the sediment impurities in the drug liquid in the water injection and drug dosing room of oil fields are not completely filtered, thus causing serious wear of the drug dosing pump and frequent pipeline blockage.

[0047] Beneficial effects of the filter of the present invention:

[0048] 1. The sand impurities in the liquid medicine are effectively filtered out;

[0049] 2. The failure rate of the dosing pump will be reduced from an average of 4 times / month to 0.25 times / month;

[0050] 3. The frequency of pipeline blockage will be reduced from an average of 2.8 times / month to 0.75 times / month.

[0051] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0052] The filter of the present invention comprises an upper tank body 10 and a lower tank body 20, wherein the lower tank body 20 is located below the upper tank body 10 and connected to the upper tank body 10; wherein a liquid inlet pipe 30 is arranged on the side wall of the lower tank body 20, and a liquid outlet pipe 40 is arranged on the side wall of the upper tank body 10; so that the liquid enters the filter body through the liquid inlet pipe 30 and flows out through the liquid outlet pipe 40; the filter also comprises a filter assembly arranged between the liquid inlet pipe 30 and the liquid outlet pipe 40, so that the liquid entering the filter body through the liquid inlet pipe 30 flows out through the liquid outlet pipe 40 after being filtered by the filter assembly. The filter facilitates the free sedimentation of fine impurities by making the liquid flow slowly from bottom to top, and the filter assembly ensures further filtration of impurities in the liquid, improves the filtering effect, and avoids the impurities from wearing the dosing pump and clogging the pipeline; and, through the separate arrangement of the upper tank body 10 and the lower tank body 20, it is convenient to clean and replace the filter assembly.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter, characterized in that: include: A filter body, the filter body comprising an upper tank body (10) and a lower tank body (20), the lower tank body (20) being located below the upper tank body (10) and connected to the upper tank body (10); wherein a liquid inlet pipe (30) is provided on the side wall of the lower tank body (20), and a liquid outlet pipe (40) is provided on the side wall of the upper tank body (10); a filter assembly, the filter assembly being arranged in the filter body and located between the liquid inlet pipe (30) and the liquid outlet pipe (40), so that the liquid entering the filter body through the liquid inlet pipe (30) flows out through the liquid outlet pipe (40) after being filtered by the filter assembly; Wherein, the filter body has a liquid storage space, and the filter further comprises: a baffle (70) disposed in the lower tank body (20), the baffle (70) being located above the liquid inlet pipe (30), the outer peripheral surface of the baffle (70) being matched with the inner wall of the liquid storage space, and the baffle (70) being provided with a communication opening so that the liquid flows from the lower side of the baffle (70) to the upper side of the baffle (70) through the communication opening; The filter assembly comprises: a first filter screen (50), at least a portion of which is disposed in the filter body, and the first filter screen (50) is disposed at the connection between the upper tank body (10) and the lower tank body (20), so that the liquid enters the upper tank body (10) after passing through the first filter screen (50); Along the circumference of the filter body, the liquid inlet pipe (30) and the liquid outlet pipe (40) are arranged at an interval of 90 degrees.

2. The filter according to claim 1, characterized in that The upper tank body (10) comprises an upper flange portion (11), and the lower tank body (20) comprises a lower flange portion (21); the upper flange portion (11) and the lower flange portion (21) are arranged opposite to each other, and the upper tank body (10) and the lower tank body (20) are connected to each other via the upper flange portion (11) and the lower flange portion (21); the first filter screen (50) comprises a filter screen body and a sealing portion arranged around the filter screen body, and the sealing portion is located between the upper flange portion (11) and the lower flange portion (21) so as to seal the upper tank body (10) and the lower tank body (20).

3. The filter according to claim 1, characterized in that The filter assembly comprises: The second filter screen (60) is arranged in the upper tank body (10) so that the liquid flows out from the liquid outlet pipe (40) after passing through the second filter screen (60).

4. The filter according to claim 3, characterized in that The inner wall of the upper tank body (10) is provided with a first clamping portion, the first clamping portion has a first clamping groove, the second filter screen (60) is matched with the first clamping groove, and the second filter screen (60) is clamped in the first clamping groove.

5. The filter according to claim 1, characterized in that The inner wall of the lower tank body (20) is provided with a second clamping portion, the second clamping portion has a second clamping groove, the baffle plate (70) is matched with the second clamping groove, and the baffle plate (70) is clamped in the second clamping groove.

6. The filter according to claim 1, characterized in that The filter also includes: An exhaust valve (80), wherein the exhaust valve (80) is arranged on the top of the upper tank body (10).

7. The filter according to claim 1, characterized in that The filter also includes: A sewage discharge pipe (90) is connected to a sewage discharge port at the bottom of the lower tank body (20). A sewage discharge valve (91) is provided on the sewage discharge pipe (90) to control the on / off of the sewage discharge pipe (90).

8. The filter according to claim 1, characterized in that The filter also includes: A supporting leg (100), wherein the supporting leg (100) is multiple and the multiple supporting legs (100) are evenly arranged around the circumference of the lower tank body (20).

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