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Draining device for fuel delivery pump suction port and assembly method thereof

An assembly method and suction port technology, which are applied to parts, pump elements, machines/engines, etc. of elastic fluid pumping devices, can solve the problem of severe vibration of oil pumps and pipelines, which affects the safety of production and operation, and is difficult to meet The requirements for the distance of the straight pipe section at the inlet of the oil pump, etc., to ensure normal and stable operation, simple structure, and easy installation

Pending Publication Date: 2019-05-28
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Restricted by the space conditions in the oil delivery pump room, it is difficult to meet the requirements for the distance of the straight pipe section at the inlet of the oil delivery pump, especially when adding and replacing pumps in the completed oil delivery pump room; And severe vibration occurs when the pipeline is running, which will affect the safety of production and operation in severe cases

Method used

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  • Draining device for fuel delivery pump suction port and assembly method thereof
  • Draining device for fuel delivery pump suction port and assembly method thereof
  • Draining device for fuel delivery pump suction port and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1, such as Figure 1-3 As shown, a flow trap for the suction port of the oil delivery pump according to the embodiment of the present invention includes: a matching flange 1, a straight pipe 4 and a 90° elbow 7, and the two ends of the straight pipe 4 are connected with the matching flange 1 and the 90 ° elbow 7 welding.

[0030] The straight pipe 4 is placed horizontally, and the horizontal drain sheet 2 and the vertical drain sheet 3 are welded on the side close to the mating flange 1 . The horizontal drainage sheet 2 is welded on the inner wall of the straight pipe 4, and the horizontal drainage sheet 2 is located on the central axis of the straight pipe 4 in the horizontal direction. The vertical dredging sheet 3 is two pieces, symmetrically arranged between the inner wall of the straight pipe 4 and the horizontal dredging sheet 2, and the two vertical dredging sheets 3 are all located on the central axis of the vertical direction of the straight pipe 4, an...

Embodiment 2

[0034] Embodiment 2, an assembly method of a flow trap used for the suction port of an oil transfer pump, the assembly method includes the following steps:

[0035] Step 1, process the horizontal drainage sheet 2, the vertical drainage sheet 3, the outer drainage sheet 5 and the inner drainage sheet 6 according to the requirements of the part drawing.

[0036] Step 2: Weld the horizontal drain sheet 2 with the inner wall of the straight pipe 4, and weld the two vertical drain sheets 3 with the horizontal drain sheet 2 and the inner wall of the straight pipe 4 to complete the horizontal drain sheet 2 and the horizontal drain sheet 2 and the assembly welding of straight pipe 4.

[0037] Among them, the two ends of the horizontal dredging sheet 2 are spot-welded, and the rest are spot-welded at intervals; the two ends of the vertical dredging sheet 3 are spot-welded, and the rest are spot-welded at intervals.

[0038] Step 3, welding the outer drain sheet 5 and the inner drain s...

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Abstract

The invention discloses a draining device for a fuel delivery pump suction port. The draining device comprises a companion flange, a straight tube and a 90-degree elbow. The two ends of the straight tube are welded to the companion flange and the 90-degree elbow correspondingly. The straight tube is arranged horizontally. A horizontal drainage plate is welded to the inner wall of the straight tubeand is located on the center axis of the straight tube in the horizontal direction. Vertical drainage plates are welded between the inner wall of the straight tube and the horizontal drainage plate.The two vertical drainage plates are located on the center axis of the straight tube in the vertical direction. An outer drainage plate and an inner drainage plate are equidistantly welded to the inner wall of the 90-degree elbow, and the radian of the outer drainage plate and the inner drainage plate is consistent with that of the 90-degree elbow. The invention further provides an assembly methodof the draining device for the fuel delivery pump suction port. The draining device has the beneficial effects that the draining device has the advantages of being simple in structure and easy to install and has enough rigidity and pressure resistant performance and is suitable for various specifications of pipeline fuel pumps, so that the flow rate of an oil product flowing into a fuel pump is uniform, and normal and stable operation of the fuel pump is ensured.

Description

technical field [0001] The invention relates to the technical field of oil delivery pipelines, in particular to a flow trap used for a suction port of an oil delivery pump and an assembly method thereof. Background technique [0002] On the inlet side of the oil pump on the main line of the long-distance pipeline, oil pump manufacturers, especially imported pump manufacturers, generally require a straight pipe section (5-10D) that is not less than 5 to 10 times the diameter of the pump inlet pipe to ensure that the oil entering the pump The product flow state is stable, which is conducive to the smooth operation of the oil pump. However, with the continuous increase of pipeline specifications in recent years, the diameter of the inlet pipeline of the oil delivery pump has also continued to increase. For example, when the specification of the inlet pipeline of the oil delivery pump is D711, the distance of the straight pipe section at the inlet of a single oil delivery pump i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/16B23K31/02
Inventor 高越曲路胡新江张鑫吕秀杰崔倞刘亮亮刘瀛
Owner BC P INC CHINA NAT PETROLEUM CORP
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