Screen pipe, distribution pipe and distributor

Abstract

The utility model relates to the technical field of distributors, in particular to a screen pipe, a distribution pipe and a distributer, the screen pipe comprises a pipe body, a plurality of flow dividing holes are formed in the side wall of the pipe body, and the flow dividing holes are formed along the circumference of the pipe body. According to the distributor screen pipe, the multiple flow dividing holes are formed in the periphery of the pipe body, manufacturing of the screen pipe is completed, when the screen pipe is manufactured, only the pipe body needs to be fixed, then laser cutting is conducted, the flow dividing holes are formed in the pipe body, manufacturing of the distributor screen pipe can be completed, manufacturing is convenient and rapid, and production is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of distributor, in particular to a screen pipe, distribution pipe and distributor. BACKGROUND

[0002] The screen pipe is a filtering device in the process of oil exploitation, has excellent sand prevention performance, can better block the sand particles in the formation, has strong deformation resistance, and well meets the needs of downhole sand prevention. They are usually used with deep well pumps, submersible pumps, or used in petroleum chemical industry, water softening treatment and other occasions. Of course, the screen pipe can also be used to uniformly distribute liquid or molten material into other media. At present, the screen pipe usually comprises a wire and a plurality of reinforcing ribs, the reinforcing ribs are arranged in a ring shape at intervals, the wire is wound in a thread shape on the outer wall of the reinforcing ribs, and uniform filter slots are formed between the wires. In use, liquid flows out through the filter slots, thereby realizing uniform distribution. In the process of making the screen pipe, the positions of the reinforcing ribs are first fixed, and then the wire wound on the reinforcing ribs is welded to fix the wire on the reinforcing ribs. The whole process of making the screen pipe is relatively complicated and inconvenient. At the same time, the screen pipe is in water or other electrolyte liquid for a long time, is eroded by water or other electrolytes, and the weld joint between the wire and the reinforcing rib is easily damaged due to electrochemical corrosion, which eventually leads to the falling off of the wire and the damage of the screen pipe. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a screen pipe, distribution pipe and distributor which can be conveniently made and processed.

[0004] In the first aspect, the screen pipe provided by the present application adopts the following technical scheme:

[0005] A screen pipe comprises a pipe body, a plurality of shunt holes are formed in the side wall of the pipe body, and the shunt holes are arranged along the circumference of the pipe body.

[0006] Optionally, the shunt holes are long strip-shaped and arranged along the axial direction of the pipe body.

[0007] Optionally, the width of the shunt hole is between 0.15mm and 0.25mm.

[0008] Optionally, one side of the shunt hole close to the outer wall of the pipe body is an outer side slot, and the other side of the shunt hole close to the inner wall of the pipe body is an inner side slot, and the width of the outer side slot is greater than the width of the inner side slot.

[0009] Optionally, the width of the inner side slot is greater than or equal to 0.15mm and less than 0.22mm.

[0010] Optionally, the width of the outer side slot is greater than 0.18mm and less than or equal to 0.25mm.

[0011] Optionally, the pipe body has a front end and a rear end, and there is a gap between one end of the shunt hole and the front end of the pipe body, and there is a gap between the other end of the shunt hole and the rear end of the pipe body.

[0012] The second aspect of the present application also provides a distribution pipe adopting the following technical scheme:

[0013] A distribution pipe comprises a liquid inlet pipe and a screen pipe, the screen pipe is fixedly sleeved on the liquid inlet pipe and a gap is arranged between the liquid inlet pipe and the screen pipe, a plurality of perforations are formed on the liquid inlet pipe, and the plurality of perforations are communicated with the gap.

[0014] The third aspect of the present application also provides a distributor adopting the following technical scheme:

[0015] A distributor comprises a main pipe and a plurality of distribution pipes, and the plurality of distribution pipes are communicated with the main pipe.

[0016] The present application completes the manufacture of the screen pipe by forming a plurality of shunt holes on the pipe body, and the manufacture of the screen pipe only needs to fix the pipe body and then cut a plurality of shunt holes on the pipe body by laser cutting, so that the manufacture of the screen pipe of the distributor is completed. In order to further facilitate the manufacture of the screen pipe of the distributor, the shunt holes are arranged in a strip shape and along the axial direction of the pipe body, and the shunt holes are only cut along the axial direction of the pipe body during the manufacture of the shunt holes, so that the shunt holes are cut and produced, and the manufacture of the screen pipe of the distributor is further facilitated. Since the screen pipe sleeved on the distribution pipe is the screen pipe disclosed above, the distribution pipe is also convenient to manufacture and produce. Since the distributor adopts the distribution pipe disclosed above, the distributor is also convenient to manufacture on the premise of being convenient to manufacture based on the distribution pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view of a distributor according to an embodiment of the present application.

[0018] Figure 2 is a partial top view of a distributor according to an embodiment of the present application.

[0019] Figure 3 is a sectional view of a distribution pipe according to an embodiment of the present application.

[0020] Figure 4 is a schematic view of the overall structure of a screen pipe according to an embodiment of the present application.

[0021] In the drawings, 1 is a main pipe, 2 is a distribution pipe, 21 is a liquid inlet pipe, 211 is a perforation, 22 is a gap, 23 is a screen pipe, 231 is a pipe body, and 232 is a shunt hole. DETAILED DESCRIPTION

[0022] The following will be described in detail with reference to the accompanying drawings. Figure 1 -Figure 4 The application is described in further detail below.

[0023] Embodiment 1

[0024] With reference to Figure 1 and Figure 2 The application discloses a distributor, which comprises a main pipe 1 and a plurality of distribution pipes 2, the plurality of distribution pipes 2 are in communication with the main pipe 1, and the plurality of distribution pipes 2 are uniformly distributed along the axial direction of the main pipe 1. Source water enters the main pipe 1 and flows into each distribution pipe 2 through the main pipe 1, i.e. flows into each liquid inlet pipe 21, and then flows into the corresponding gap 22 through each liquid inlet pipe 21, and finally is uniformly distributed through the corresponding sieve pipe 23.

[0025] Embodiment 2

[0026] With reference to Figure 3 The distribution pipe 2 comprises a liquid inlet pipe 21 and a sieve pipe 23, the sieve pipe 23 is the sieve pipe 23 disclosed in Embodiment 1, the sieve pipe 23 is sleeved on the liquid inlet pipe 21, and there is a gap 22 between the sieve pipe 23 and the liquid inlet pipe 21. Specifically, the gap 22 is closed between the two ends of the sieve pipe 23 and the liquid inlet pipe 21, so that the gap 22 is sealed. A plurality of perforations 211 are formed in the outer side wall of the liquid inlet pipe 21, and the plurality of perforations 211 are in communication with the gap 22. After the liquid enters the liquid inlet pipe 21, it flows into the gap 22 through the perforations 211, and the liquid in the gap 22 is uniformly distributed through the sieve pipe 23. When the distribution pipe 2 is manufactured, only the manufactured sieve pipe 23 needs to be fixedly sleeved on the liquid inlet pipe 21.

[0027] Embodiment 3

[0028] A sieve pipe, with reference to Figure 4 comprises a pipe body 231, the pipe body 231 is in a cylindrical shape, a plurality of shunt holes 232 are formed in the side wall of the pipe body 231, and the plurality of shunt holes 232 are arranged along the circumference of the pipe body 231. Preferably, the plurality of shunt holes 232 are uniformly arranged along the circumference of the pipe body 231. In the process of manufacturing the sieve pipe 23 of the distributor, the pipe body 231 is fixed, and then a plurality of shunt holes 232 are cut in the side wall of the pipe body 231 through laser cutting. Compared with the scheme of winding and welding the shunt holes 232 on the reinforcing ribs, the sieve pipe 23 of the distributor is directly manufactured through laser cutting, which is simple and convenient, and has higher manufacturing efficiency.

[0029] Further, the shunt holes 232 are in a strip shape and are arranged along the axial direction of the pipe body 231. Since the shape of the shunt holes 232 is limited to a strip shape, and the shunt holes 232 are arranged along the axial direction of the pipe body 231, only laser cutting along the axial direction of the pipe body 231 is needed in the process of machining the shunt holes 232, so that the shunt holes 232 can be machined conveniently and quickly.

[0030] Specifically, the 144 distribution holes 232 are evenly arranged along the pipe body 231. In other embodiments, the number of distribution holes 232 can be other numbers.

[0031] Further, the pipe body 231 has a front end and a rear end, and there is a gap between one end of the distribution hole 232 and the front end of the pipe body 231, and there is a gap between the other end of the distribution hole 232 and the rear end of the pipe body 231, that is, both ends of the distribution hole 232 do not penetrate the pipe body 231, and both ends of the pipe body 231 are integral, which ensures the overall strength of the distributor screen pipe 23. In other embodiments, one end of the distribution hole 232 can also penetrate the pipe body 231.

[0032] Specifically, the width of the distribution hole 232 is between 0.15mm and 0.25mm (including 0.15mm and 0.25mm). If the width of the distribution hole 232 is too large, it will be difficult to control the amount of liquid in and out, resulting in different liquid output amounts for each distribution hole 232, thereby affecting the uniform distribution of the liquid. If the width of the distribution hole 232 is too small, the liquid may not be able to flow out due to liquid tension. Therefore, the width of the distribution hole 232 is set to be between 0.15mm and 0.25mm, which ensures the normal flow of the liquid and the stability of the liquid flow, thereby ensuring the uniform distribution of the liquid. In this embodiment, the width of the distribution hole 232 is set to 0.20mm. In other embodiments, the width of the distribution hole 232 can be 0.21mm, 0.19mm or other width values between 0.15mm and 0.25mm.

[0033] Further, the side of the distribution hole 232 close to the outer wall of the pipe body 231 is an outer slit, and the side of the distribution hole 232 close to the inner wall of the pipe body 231 is an inner slit. The width of the outer slit is greater than the width of the inner slit. When the liquid flows out of the pipe body 231 through the distribution hole 232, it flows from the inner slit to the outer slit. Since the width of the inner slit is small, the flow of the liquid can be easily controlled each time to achieve the efficiency of uniform distribution of the liquid. During the process of the liquid flowing from the inner slit to the outer slit, the width of the outer slit is greater than the width of the inner slit, so the liquid is more likely to flow from the inner slit to the outer slit, facilitating the flow of the liquid. Specifically, when the width of the inner slit is between 0.15mm and 0.22mm, the control effect of the liquid flow is better, and when the width of the outer slit is between 0.18mm and 0.25mm, the liquid flow effect is better. In this embodiment, the width of the inner slit is set to 0.18mm and the width of the outer slit is set to 0.22mm. In other embodiments, the width of the inner slit and the outer slit can also be set to other values as long as they are within the above range.

[0034] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A distribution tube, characterized by, Including liquid inlet pipe (21) and screen pipe (23), screen pipe (23) is fixedly sleeved on liquid inlet pipe (21) and is provided with gap (22) between liquid inlet pipe (21), a plurality of perforations (211) are formed on liquid inlet pipe (21), a plurality of perforations (211) are communicated with gap (22); The screen pipe (23) comprises a pipe body (231), a plurality of shunt holes (232) are formed in the sidewall of the pipe body (231), and a plurality of shunt holes (232) are arranged along the circumference of the pipe body (231).

2. A distribution tube according to claim 1, wherein The shunt hole (232) is long strip-shaped and is arranged along the axis direction of the pipe body (231).

3. A distribution tube according to claim 1 or 2, characterised in that The shunt hole (232) has a width of 0.15mm-0.25mm.

4. A distribution tube according to claim 1, wherein The side of the shunt hole (232) close to the outer wall of the pipe body (231) is an outer side seam, the side of the shunt hole (232) close to the inner wall of the pipe body (231) is an inner side seam, and the width of the inner side seam is 0.15mm-0.25mm.

5. A distribution tube according to claim 4, wherein The width of the outer side seam is 0.15mm-0.25mm.

6. A distribution tube according to claim 1, wherein The pipe body (231) has a front end and a rear end, there is a spacing between one end of the shunt hole (232) and the front end of the pipe body (231), and there is a spacing between the other end of the shunt hole (232) and the rear end of the pipe body (231).

7. A distributor characterized by, The distribution pipe (2) is arranged on the main pipe (1), and the distribution pipe (2) is arranged on the main pipe (1).

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