Cooling structure between power end and fluid end of plunger pump for shale gas exploitation
A power end and plunger pump technology, which is applied to the components of the pumping device for elastic fluid, pump components, variable displacement pump components, etc., can solve problems such as the adverse effect of the power end, and achieve a good protective effect
Pending Publication Date: 2020-08-25
阿奥艾斯能源科技成都有限公司 +1
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Problems solved by technology
[0003] In shale gas exploration projects, plunger pumps are widely used to transport oil, and for some high-temperature oil, because the hydraulic end of the traditional plunger pump is directly connected to the power end, its high temperature is easily transferred from the hydraulic end to the power end. Adverse effects on the power end
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[0033] The present invention will be further described below in conjunction with embodiment and accompanying drawing.
[0034] Such as Figure 1-7 and Figure 11 As shown, a shale gas development adopts a cooling structure between the power end and the liquid end of the plunger pump, including a liquid end cylinder 23 and three plungers 1 that cooperate with the cylinder 23, three column The plugs 1 are horizontally arranged side by side, and a stuffing box 2 is set on the said plunger 1, and a packing sealing assembly 3 is arranged between the stuffing box 2 and the plunger 1, and the outer end of the packing sealing assembly 3 is covered by packing 4 Compression, the high-temperature oil is transported through the reciprocating motion of the plunger 1.
[0035] The outer side of the stuffing box 2 is provided with a first cooling box 5 and a second cooling box 6 along its axial direction, wherein the first cooling box 5 is close to the liquid end cylinder 23, and the secon...
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The invention discloses a cooling structure between a power end and a fluid end of a plunger pump for shale gas exploitation. The cooling structure comprises a fluid end cylinder body and a plunger matched with the cylinder body, a stuffing box is arranged on a plunger in a sleeving mode, a first cooling box body and a second cooling box body are arranged on the outer side of the stuffing box along the axial direction stuffing box in a sleeving mode, a first cooling annular cavity is formed between the first cooling box body and the stuffing box, and a second cooling annular cavity is formed between the second cooling box body and the stuffing box. The first cooling annular cavity is connected with a first cooling medium inlet pipe and a first cooling medium outlet pipe, the second coolingannular cavity is connected with a second cooling medium inlet pipe and a second cooling medium outlet pipe, a cooling partition block used for being connected with the power end is installed on thecylinder body, and a third cooling medium channel is formed in the cooling partition block. According to the cooling structure, the connection of the power end and the fluid end is changed from traditional direct connection to indirect connection through the cooling partition block, and the two cooling annular cavities and the cooling partition block are filled with cooling media, so that the hightemperature of the fluid end can be effectively prevented from being transferred to the power end through the plunger, and the power end is well protected.
Description
technical field [0001] The invention relates to the technical field of plunger pumps, in particular to a cooling structure between a power end and a liquid end of a plunger pump used in shale gas development. Background technique [0002] The plunger pump is an important device of the hydraulic system. It relies on the reciprocating movement of the plunger in the cylinder to change the volume of the sealed working chamber to realize oil suction and pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment, and is widely used in high pressure, large flow and flow adjustment occasions, such as hydraulic presses, engineering machinery and ships. [0003] In shale gas exploration projects, plunger pumps are widely used to transport oil, and for some high-temperature oil, because the hydraulic end of the traditional plunger pump is directly connected to the power end, its high temperature is easily tran...
Claims
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IPC IPC(8): F04B53/08F04B53/02F04B53/14F04B53/18
CPCF04B53/08F04B53/02F04B53/14F04B53/18
Inventor 聂鹏龚超柳进乔汉杰任龙
Owner 阿奥艾斯能源科技成都有限公司