Underground separator with anti-scaling function

Abstract

The utility model discloses an underground separator with a scale prevention function. Comprising a separator body, anti-scale sheet layers are arranged on the outer surfaces of an inducer, an impeller and a separation wheel of the separator body respectively, and hard alloy coating layers are arranged on the edges of the anti-scale sheet layers. The oil separator has the beneficial effects that the anti-scale sheet layers are respectively arranged on the outer surfaces of the inducer, the impeller and the separation wheel of the separator body, so that the contact area with oil is large, the space of the separator is not occupied, and the oil treatment efficiency is improved. And a hard alloy coating layer for improving the strength is arranged on the edge of the anti-scaling sheet layer.

Description

Technical Field

[0001] The utility model relates to the technical field of separator descaling, in particular to a downhole separator with an anti-scaling function. Background Art

[0002] Conventional anti-scaling technology for downhole separators of electric pump units generally involves placing an anti-scaling chamber at the rear of the separator, an anti-scaling sheet in the chamber, and through-holes in the sheet. Oil flows through the through-holes in the sheet, thereby preventing scale. This solution not only reduces the contact area between the sheet and the oil, but also easily causes the through-holes of the sheet to become blocked, resulting in low oil treatment efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a downhole separator with anti-scaling function, which is provided with anti-scaling layers on the outer surfaces of the inducer, impeller and separation wheel of the separator body, so that the contact area with the oil is large and the space of the separator is not occupied, thereby improving the oil processing efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions, including: a separator body; anti-scaling layers are respectively provided on the outer surfaces of the inducer, impeller and separation wheel of the separator body, and a hard alloy coating layer is provided on the edge of the anti-scaling layer.

[0005] Preferably, the separator body includes an upper joint, a shell and a lower joint which are connected in sequence; a separator shaft is provided in the shell, and a separator wheel, an impeller and an inducer are sequentially mounted on the middle part of the separator shaft from top to bottom; an upper center hole and a lower center hole for the two ends of the separator shaft to pass through are respectively provided in the center of the upper joint and the lower joint; an oil flow channel and a water flow channel are respectively provided on both sides of the upper center hole, and a liquid inlet flow channel is respectively provided in a mirrored manner on both sides of the lower center hole.

[0006] Preferably, the upper joint and the lower joint are connected to the shell via oil pipe buckles respectively.

[0007] Preferably, detachable transport caps are respectively provided on the end faces of the upper joint and the lower joint.

[0008] Preferably, a spline sleeve is provided at the lower end of the separator shaft.

[0009] Preferably, an inlet filter is provided at the inlet of the liquid inlet channel.

[0010] Preferably, a liner is provided on the inner peripheral wall of the shell.

[0011] Preferably, support sleeves are provided in the upper center hole and the lower center hole respectively.

[0012] The beneficial effects of the present invention are as follows: anti-scaling layers are provided on the outer surfaces of the inducer, impeller, and separator wheel of the separator body, respectively, which not only increase the contact area with the oil but also reduce the space occupied by the separator, thereby improving oil processing efficiency. A hard alloy coating is provided on the edges of the anti-scaling layers to increase strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of a downhole separator with anti-scaling function according to the utility model.

[0014] Figure 2 This is a three-dimensional diagram of the inducer, impeller and separator wheel in the utility model. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below with reference to the accompanying drawings so that those skilled in the art can implement it according to the description.

[0016] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or other elements or combinations thereof.

[0017] like Figure 1-2 As shown, a downhole separator 1 with anti-scaling function according to the present invention comprises: a separator body 100; anti-scaling layers 200 are provided on the outer surfaces of the inducer 153, impeller 152, and separator wheel 151 of the separator body 100, respectively; and a hard alloy coating 300 is provided on the edges of the anti-scaling layers 200. Preferably, the separator body 100 comprises an upper joint 110, a housing 120, and a lower joint 130 connected in sequence; a separator shaft 140 is provided within the housing 120, and a separator wheel 151, impeller 152, and inducer 153 are sequentially mounted in the middle of the separator shaft 140 from top to bottom; an upper center hole 111 and a lower center hole 131 are provided in the centers of the upper joint 110 and the lower joint 130, respectively, for the two ends of the separator shaft to pass through; an oil flow channel 112 and a water flow channel 113 are provided on either side of the upper center hole 111, respectively, and a liquid inlet flow channel 132 is provided on either side of the lower center hole 131 in a mirror-image manner.

[0018] During use, first, the separator shaft 140 drives the separation wheel 151, impeller 152, and inducer 153 to rotate. The inducer 153 introduces the well fluid from the liquid inlet channel 132 into the housing 120. The impeller 152 lifts the well fluid and generates a stable pressure head. The separation wheel 151 separates the water and oil in the well fluid. The separated oil is discharged through the oil channel 112, and the separated water is discharged through the water channel 113. During this process, the anti-scaling layer 200 releases weak organic groups. These organic groups can deactivate positive ions such as calcium and magnesium ions in the water, causing a weak electrical interference effect, thereby preventing the formation of scale. The hard alloy coating layer 300 provided at the edge of the anti-scaling layer 200 provides strength to the anti-scaling layer 200.

[0019] In another embodiment, the separator body 100 includes an upper joint 110, a shell 120 and a lower joint 130 connected in sequence; a separator shaft 140 is provided in the shell 120, and a separator wheel 151, an impeller 152 and an inducer wheel 153 are sequentially mounted on the middle part of the separator shaft 140 from top to bottom; an upper center hole 111 and a lower center hole 131 for the two ends of the separator shaft to pass through are respectively provided in the center of the upper joint 110 and the lower joint 130; an oil flow channel 112 and a water flow channel 113 are respectively provided on both sides of the upper center hole 111, and a liquid inlet flow channel 132 is respectively provided on both sides of the lower center hole 131 in a mirrored manner.

[0020] In another embodiment, the upper joint 110 and the lower joint 130 are connected to the housing 120 respectively through oil pipe buckles.

[0021] In another embodiment, a detachable transport cap 160 is provided on the end surface of the upper joint 110 and the lower joint 130. As a preferred embodiment, the transport cap 160 is detachably connected to the upper joint 110 and the lower joint 130 by a hexagonal bolt.

[0022] In another embodiment, a spline sleeve 141 is provided at the lower end of the separator shaft 140 .

[0023] In another embodiment, an inlet filter 133 is provided at the inlet of the liquid inlet channel 132. Preferably, the inlet filter 133 is fixed by a filter clip.

[0024] In another embodiment, a liner 121 is provided on the inner circumferential wall of the housing 120 .

[0025] In another embodiment, support sleeves 170 are respectively provided in the upper center hole 111 and the lower center hole 131 .

[0026] In summary, the present invention provides a downhole separator 1 with anti-scaling capabilities. Anti-scaling layers 200 are provided on the outer surfaces of the inducer 153, impeller 152, and separator wheel 151 of the separator body 100. These layers 200 provide a large contact area with the oil while minimizing space in the separator, thereby improving oil processing efficiency. A hard alloy coating 300 is applied to the edges of the anti-scaling layers 200 to enhance their strength.

[0027] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A downhole separator with anti-scaling function, comprising a separator body, characterized in that: Anti-scaling sheet layers are respectively provided on the outer surfaces of the inducer, the impeller and the separator wheel of the separator body, and a hard alloy coating layer is provided on the edge of the anti-scaling sheet layer.

2. The downhole separator with anti-scaling function according to claim 1, characterized in that: The separator body includes an upper joint, a shell and a lower joint that are connected in sequence; a separator shaft is provided in the shell, and a separator wheel, an impeller and an inducer are sequentially mounted on the middle part of the separator shaft from top to bottom; an upper center hole and a lower center hole for the two ends of the separator shaft to pass through are respectively provided in the center of the upper joint and the lower joint; an oil flow channel and a water flow channel are respectively provided on both sides of the upper center hole, and a liquid inlet flow channel is respectively provided on both sides of the lower center hole in a mirrored manner.

3. The downhole separator with anti-scaling function according to claim 2, characterized in that: The upper joint and the lower joint are connected to the shell through oil pipe buckles respectively.

4. The downhole separator with anti-scaling function according to claim 2, characterized in that: Removable transport caps are respectively provided on the end faces of the upper joint and the lower joint.

5. The downhole separator with anti-scaling function according to claim 2, characterized in that: A spline sleeve is provided at the lower end of the separator shaft.

6. The downhole separator with anti-scaling function according to claim 2, characterized in that: An inlet filter is provided at the inlet of the liquid inlet flow channel.

7. The downhole separator with anti-scaling function according to claim 2, characterized in that: A liner is provided on the inner peripheral wall of the shell.

8. The downhole separator with anti-scaling function according to claim 2, characterized in that: Support sleeves are respectively provided in the upper center hole and the lower center hole.

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