CN215276097U

CN215276097U - Pipeline filter equipment and oil pipe assembly

Info

Publication number: CN215276097U
Application number: CN202120378375.7U
Authority: CN
Inventors: 姜平; 陆敏; 张鹏; 白晓雅; 徐建文
Original assignee: China Petroleum Natural Gas Sixth Construction Co ltd
Current assignee: China Petroleum Natural Gas Sixth Construction Co ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-12-24
Anticipated expiration: 2031-02-19

Abstract

The utility model discloses a pipeline filtering device, include: the middle part of the supporting plate is provided with an inner opening which penetrates through the front end surface and the rear end surface of the supporting plate; the first filter screen is detachably connected to the front end face and/or the rear end face of the supporting plate and covers the inner opening; the two sealing pieces are respectively a front sealing piece and a rear sealing piece, the front sealing piece is convexly arranged on the front end face of the supporting plate, the rear sealing piece is convexly arranged on the rear end face of the supporting plate, and the two sealing pieces are annular and are annularly arranged on the periphery of the inner opening. The pipeline filtering device is simple to assemble and disassemble, reliable in sealing performance and very suitable for being used between pipeline flanges.

Description

Pipeline filter equipment and oil pipe assembly

Technical Field

The utility model relates to a petrochemical equipment technical field especially relates to a pipeline filter equipment and oil pipe subassembly.

Background

In modern society, petroleum plays a very important role, and petroleum in China is mainly transported through pipelines, so that the petroleum pipeline transportation has obvious advantages of high economic benefit, convenience in transportation and the like. In the installation process of petroleum pipelines and chemical equipment, the installation and debugging of large units are usually encountered, wherein one important step is an oil flushing step; furthermore, since some pipelines have been in operation for many years, a large deposit of wax and contaminants forms inside the pipeline, and the oil pipelines must be cleaned periodically in order to avoid a serious impact on the safety of pipeline transportation.

The filter structure is needed to block the flushed impurities in the flushing process, the filter structure in the prior art is generally designed for a large oil return main pipe, is long in length, is cylindrical, is complex in structure, and needs to be reserved with enough length at the initial installation stage. And to each oil supply point pipeline of equipment, also need set up the filter between the flange of defeated oil pipe and the flange of equipment bearing box oil inlet, oil just can get into the bearing box after filtering, prevents that filth and impurity among the oil washing process from advancing into the bearing box, but in order to can firmly with the flange of bolted connection defeated oil pipe and the flange of equipment bearing box oil inlet, the interval that can set up between two flanges is limited, is difficult to install current cylindric filtration.

On-site two polytetrafluoroethylene sheets are usually adopted to make a gasket form, a filter screen is added between the two sheets, and sealant is coated, but the mode has many on-site operation steps, is complex to install and disassemble, is not easy to control the quality of on-site construction, has the risk of slag and glue falling, and is easy to cause leakage.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a pipeline filtering device and oil pipe assembly, the loading and unloading are simple, the sealing performance is reliable, and the pipeline filtering device is very suitable for being used between the pipeline flanges.

The purpose of the utility model is realized by adopting the following technical scheme:

a pipe filtration apparatus comprising:

the middle part of the supporting plate is provided with an inner opening which penetrates through the front end surface and the rear end surface of the supporting plate;

the first filter screen is detachably connected to the front end face and/or the rear end face of the supporting plate and covers the inner opening;

the two sealing pieces are respectively a front sealing piece and a rear sealing piece, the front sealing piece is convexly arranged on the front end face of the supporting plate, the rear sealing piece is convexly arranged on the rear end face of the supporting plate, and the two sealing pieces are annular and are annularly arranged on the periphery of the inner opening.

Furthermore, the front end face and/or the rear end face of the supporting plate is/are also provided with an annular groove, the annular groove is arranged on the periphery of the inner opening, and the front sealing piece and/or the rear sealing piece are/is detachably arranged in the annular groove; the first filter screen is fixed in the annular groove by a sealing piece in a pressing mode.

Furthermore, the front end surface and the rear end surface of the supporting plate are both provided with the annular grooves which are respectively a front annular groove and a rear annular groove; the front sealing piece and the rear sealing piece are detachably arranged in the front annular groove and the rear annular groove respectively.

Further, the front annular groove is coaxial with the rear annular groove, the diameter of the front annular groove is smaller than that of the rear annular groove, and the diameter of the front sealing element is smaller than that of the rear annular groove.

Further, the first filter screen is fixed in the front annular groove or the rear annular groove.

The first filter screen is fixed in the front annular groove in an extruding mode, and the second filter screen is fixed in the rear annular groove in an extruding mode; the aperture of the first filter is larger than that of the second filter.

The utility model also provides an oil pipe assembly, including first pipeline, second pipeline and according to any one of claims 1-6 pipeline filter equipment, first pipeline, pipeline filter equipment and second pipeline connect gradually from the past to the back, the rear end of first pipeline has first flange, the front end of second pipeline has the second flange, first flange with be equipped with the bolt hole on the second flange and adopt bolt interconnect, the rear end face of first flange passes through preceding sealing member with the sealed counterbalance of the preceding terminal surface of backup pad, the preceding terminal surface of second flange passes through back sealing member with the sealed counterbalance of the rear end face of backup pad.

Furthermore, the outer side of the supporting plate in the diameter direction is also provided with a handle extending outwards, and the handle can extend out of the first flange and the second flange.

Further, the supporting plate is annular, the outer diameter of the supporting plate is smaller than the diameter of the position where the bolt is located, and the diameter of the inner opening is the same as the inner diameter of the first flange and/or the second flange.

Furthermore, the supporting plate is also provided with a connecting hole, and the connecting hole is matched with the bolt hole.

The present invention improves upon the shortcomings of prior art filter assemblies that are used between pipe flanges. The support plate is used as a main support structure, the shape and the thickness of the plate are limited, the support plate can easily extend between the two flanges, and an inner opening on the support plate is used for allowing flushing liquid to pass; the first filter screen connected to the support plate filters out impurities in the passing liquid, and the first filter screen can be replaced by filter screens with different pore sizes according to actual requirements through a detachable design, and can be directly detached for cleaning or replacing when the filter screens are blocked; the sealing parts of the front end surface and the rear end surface of the supporting plate enable the two ends of the supporting plate to be in closer contact with the end surfaces of the flanges, and liquid is prevented from overflowing from the connecting part. Consequently, pipeline filter equipment is simple frivolous leakproofness good in this scheme, is fit for being used for between two flanges, and the high suitable on-the-spot quick installation of flexibility ratio.

Drawings

Fig. 1 is a schematic cross-sectional exploded view of a pipeline filtering device according to the present invention, in which only a first filter net is provided;

fig. 2 is a schematic cross-sectional exploded view of a pipeline filtering apparatus of the present invention with a first filter screen and a second filter screen;

fig. 3 is a schematic cross-sectional view of an oil pipe assembly according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 2 show a pipeline filtering device of the present invention, which comprises a supporting plate 1, a first filter screen 21 and two sealing members:

the middle part of backup pad 1 is equipped with and runs through the interior opening 13 of the preceding terminal surface 14 and the rear end face 15 of backup pad 1, and backup pad 1 generally is the panel that thickness and flange A outer end thickness are about the same, because thickness is limited, by its major bearing structure, can stretch into between two flange A comparatively easily, need not to reserve the interval of overlength at the installation initial stage, and the interior opening in backup pad 1 is used for passing through washing liquid.

The first filter screen 21 is detachably connected to the front end face 14 and/or the rear end face 15 of the support plate 1 and covers the inner opening; the filter screen connected to the support plate 1 filters out impurities in the passing liquid, and the filter screen can be replaced by filter screens with different pore sizes according to actual requirements through a detachable design, and can be directly detached for cleaning or replacement when the filter screen is blocked;

the two sealing elements are elastic and respectively comprise a front sealing element 31 and a rear sealing element 32, the front sealing element is convexly arranged on the front end surface 14 of the supporting plate, the rear sealing element 32 is convexly arranged on the rear end surface 15 of the supporting plate, and the two sealing elements are annular and are annularly arranged on the periphery of the inner opening 13. The annular sealing member ensures the sealing performance between the support plate 1 and the flange A from various angles, and prevents liquid from overflowing from the joint. The sealing element is preferably an O-shaped rubber ring, and the O-shaped rubber ring is a common sealing element, so that the purchase and the cost reduction are facilitated.

It can be seen that pipeline filter equipment is simple frivolous leakproofness good among this scheme, is fit for being used for between two flange A, and the high suitable on-the-spot quick installation of flexibility ratio.

In the structure for realizing the detachable installation of the filter screen, in this embodiment, it is preferable that the front end surface 14 and/or the rear end surface 15 of the support plate 1 is further provided with an annular groove, the annular groove is arranged on the periphery of the inner opening 13, and the front sealing element 31 and/or the rear sealing element 32 are detachably installed in the annular groove; the first filter 21 is fixed in the annular groove by a seal member. The annular groove with the structure not only has the function of fixing the sealing element to enable the sealing element not to be easy to radially displace, but also has the function of fixing the first filter screen 21, and the elasticity of the sealing element enables the sealing element to be elastically tightened when the sealing element is installed in the annular groove, so that the sealing element can be well fixed in the annular groove; but also the first filter 21 behind it is compressed when the seal is squeezed between the flange a and the support plate 1. Therefore, the structure ensures that the first filter screen 21 can be firmly fixed when needing to be installed, and both the sealing performance and the filtering performance can be ensured; when needing to be changed, take off the sealing member and can take off first filter screen comparatively easily, whole process easy operation can not cause irreversible injury to all parts, and first filter screen 21 can be changed or wash at any time.

In order to achieve the best sealing effect, the annular grooves are arranged on the front end surface 14 and the rear end surface 15 of the support plate 1, and are respectively a front annular groove 11 and a rear annular groove 12; the front seal 31 and the rear seal 32 are detachably mounted in the front annular groove 11 and the rear annular groove 12, respectively. The sealing elements are arranged on the front end face and the rear end face through the annular grooves, so that the two sides can be guaranteed to have good sealing performance and disassembly convenience.

More specifically, the front annular groove 11 is coaxial with the rear annular groove 12, the diameter of the front annular groove 11 is smaller than that of the rear annular groove 12, and the diameter of the front seal 31 is smaller than that of the rear seal 32. The annular grooves and the sealing elements on the two sides are different in size, so that sealing effects can be achieved at different positions, and poor sealing caused by the fact that the sealing elements at certain positions cannot contact the supporting plate 1 or the flange A due to deviation in installation is avoided.

In the arrangement of the filter screen, the present embodiment provides two schemes as follows:

as shown in fig. 1, one of them is: the first filter 21 is fixed in the front annular groove 11 or the rear annular groove 12. The single-layer filter screen is small in installation difficulty, saves time and materials, and is suitable for being used when the requirement on the filtering effect is low.

As shown in fig. 2, the second is: the filter is characterized by further comprising a second filter screen 22, wherein the first filter screen 21 is fixed in the front annular groove 11 in an extruding mode, and the second filter screen 22 is fixed in the rear annular groove 12 in an extruding mode; the aperture of the first filter 21 is larger than that of the second filter 22. All set up the filter screen in backup pad 1's both sides and can double-deck filtration, filterable effect is better, and in addition, the aperture of two filter screens is different, when the installation, can use first filter screen 21 to carry out the coarse filtration for the first time to needs filterable liquid earlier, with great impurity filtering, reuse second filter screen 22 carries out the secondary filter to filter littleer impurity, make the liquid that finally gets into in the equipment bearing housing cleaner.

Furthermore, the utility model provides an oil pipe assembly, including first pipeline A1, second pipeline A2 and pipeline filter equipment, first pipeline A1, pipeline filter equipment and second pipeline A2 connect gradually from the past to the back, first pipeline A1's rear end has first flange A11, second pipeline A2's front end has second flange A21, first flange A11 with be equipped with the bolt hole on the second flange A21 and adopt bolt interconnect, first flange A11's rear end face passes through preceding sealing member 31 with the preceding terminal surface 14 of backup pad is sealed to offset, second flange A21's preceding terminal surface passes through back sealing member 32 with the rear end face 15 of backup pad is sealed to offset.

In order to better fix the position of the whole pipeline filter device during the disassembly and assembly, the outer side of the supporting plate 1 in the diameter direction is also provided with a handle 4 which extends outwards, and the handle 4 can extend out of the first flange A11 and the second flange A21 so as to be held by a hand. When the pipeline filtering device is installed, the handle 4 is held by hand to position the pipeline filtering device, so that the supporting plate 1 can be prevented from falling out when not being clamped; when the flange A is detached, the whole pipeline filtering device can be prevented from being deformed due to sudden falling when the flange A is loosened by holding the pipeline filtering device by hands.

In terms of the shape and size of the support plate 1, one of the preferable schemes is that the support plate 1 is circular, the outer diameter of the support plate 1 is smaller than the diameter of the position of the bolt A3 so as to avoid interference of the flange a connected with each other by the connecting bolt A3, specifically, the outer diameter of the support plate 1 is the diameter of the center of the connecting bolt A3 of the flange a minus the diameter of the bolt hole and then minus 2mm, and after tests, the outer diameter of the size can well meet the requirements of installation and use. The diameter of the inner opening is the same as the inner diameter of the first flange A11 and/or the second flange A21, so that the change of speed and flow state when liquid flows through is avoided, and the flushing is not facilitated.

The other preferable scheme is as follows: the support plate 1 is further provided with connecting holes, the connecting holes are matched with the bolt holes, and when the two flanges A are connected, the support plate 1 is also connected in series through the bolt assemblies. This way, it is possible to avoid the support plate 1 interfering with the attachment of the flange a and also to enable the support plate 1 to be more firmly fixed.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A pipe filtration apparatus, comprising:

2. The pipe filtering device according to claim 1, wherein an annular groove is further formed in the front end face and/or the rear end face of the supporting plate, the annular groove is formed in the periphery of the inner opening, and the front sealing member and/or the rear sealing member are detachably mounted in the annular groove; the first filter screen is fixed in the annular groove by a sealing piece in a pressing mode.

3. The pipe filtering device according to claim 2, wherein the supporting plate has the annular grooves formed on both the front end surface and the rear end surface thereof, which are respectively a front annular groove and a rear annular groove; the front sealing piece and the rear sealing piece are detachably arranged in the front annular groove and the rear annular groove respectively.

4. The pipe filtration device of claim 3, wherein the front annular groove is coaxial with the rear annular groove, the front annular groove having a smaller diameter than the rear annular groove, and the front seal member having a smaller diameter than the rear annular groove.

5. The duct filter assembly of claim 4, wherein the first filter is secured in the front or rear annular groove.

6. The duct filtering arrangement of claim 4, further comprising a second filter screen, the first filter screen being press-fit into the front annular groove and the second filter screen being press-fit into the rear annular groove; the aperture of the first filter is larger than that of the second filter.

7. An oil pipe assembly, characterized by, including first pipeline, second pipeline and according to any one of claims 1-6 pipeline filter equipment, first pipeline, pipeline filter equipment and second pipeline connect gradually from the front to back, the rear end of first pipeline has first flange, the front end of second pipeline has second flange, first flange with be equipped with the bolt hole on the second flange and adopt the bolt interconnect, the rear end face of first flange passes through preceding sealing member with the preceding terminal surface seal of backup pad is supported, the preceding terminal surface of second flange passes through the back sealing member with the rear end face seal of backup pad is supported.

8. The tubing assembly of claim 7, wherein said support plate further comprises a handle disposed about an outer periphery thereof, said handle being capable of extending beyond said first and second flanges.

9. The tubing assembly of claim 7 wherein said support plate is annular in shape, said support plate having an outer diameter less than a diameter of said bolt, said inner opening having a diameter equal to an inner diameter of said first and/or second flanges.

10. The tubing assembly according to claim 7, wherein said support plate further comprises attachment holes, said attachment holes being adapted to mate with said bolt holes.