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Block-resistant spraying device

A jet-flushing and anti-blocking technology, applied in water conservancy projects, artificial islands, sheet pile walls, etc., can solve the problems of difficult construction, affecting the safe construction of oil platforms, and high costs, shortening the construction period and improving the migration construction. Efficiency and quick pile up

Active Publication Date: 2009-05-13
ZHEJIANG BETHEL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the shortcomings of the traditional construction methods are that the construction is difficult, the cost is high, and the safe construction operation of the oil platform is seriously affected.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, the working principle of the anti-blocking automatic flushing device of the present invention is as follows: when the high-pressure water from the high-pressure pipeline enters the upper part of the housing through the interface, the water pressure pushes the composite piston to move down, and the high-pressure water enters the upper part of the composite piston through the water separation chamber In the water inlet hole, when the compound piston moves down, the water spray port at the lower end protrudes from the lower end of the piston sleeve, and the water spray hole opens to spray around. When the water pressure decreases to less than the spring pressure, the compound piston moves up, The water spray port is retracted into the piston sleeve to close the water spray hole to prevent sediment from entering the valve body.

Embodiment 2

[0020] Embodiment 2, if the water spraying of design is sprayed in the downward direction, as attached figure 2 - As shown in 3, a vertical groove is set at the lower opening of the piston sleeve, and when the water spray port at the bottom of the piston communicates with the vertical groove, the water flow is sprayed downwards through the vertical groove. There is an annular groove on the outer circle of the large and small piston of the compound piston, and the water inlet hole and the water spray hole are opened on the annular groove. The purpose is that even if the water nozzle is not aligned with the vertical groove, the water flow can enter the vertical groove through the annular groove Spray down.

[0021] The processing can be made according to the traditional machining process.

[0022] Compared with the prior art, the anti-blocking automatic flushing device of the present invention has the characteristics of reasonable design, simple structure, easy processing, smal...

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Abstract

The invention provides an anti-clogging jetting machine, which consists of a shell, a piston sleeve, a composite piston and an anticorrosive inner sleeve, wherein the shell is provided with a cavity, and the top of the shell is provided with a high-pressure water pipe joint; the high-pressure water pipe joint and a lower cavity are arranged downwards; the bottom of the piston sleeve is provided with a threaded convex ring, and the threaded convex ring at the bottom of the piston sleeve is rotatably connected with the bottom of the shell; the middle of the piston sleeve is provided with a trapezoidal hole with large upper part and small lower part; the lower end of the composite piston is provided with a small piston which is glidingly connected with a small hole at the bottom of the trapezoidal hole in the middle of the piston sleeve, and the upper end of the composite piston is provided with a large piston which is glidingly connected with the upper part of the trapezoidal hole; a spring is sleeved on an excircle of the small piston; the lower end of the spring is connected with the middle of the trapezoidal hole; the upper part of the composite piston is provided with a water inlet hole, and the lower part of the composite piston is provided with a blowhole; and the water inlet hole and the blowhole are connected with each other through a channel in the center of the composite piston. Compared with the prior art, the jetting machine has the characteristics of reasonable design, simple structure, safety and reliability, convenient use, easy maintenance and so on, and has good popularization value and use value.

Description

technical field [0001] The invention relates to an accessory of an oil platform, in particular to an anti-blocking scourer which is beneficial to the lifting of the pile shoe of the oil platform. Background technique [0002] Usually offshore oil platforms change the construction position at any time according to the construction needs. Since the spud cans at the lower end of the pile columns of the oil platform have been submerged in the seabed for a long time, the huge and heavy spud cans are often solidified with the mud, which increases the mechanical force of the oil platform. cause great difficulty. The treatment method in the prior art is that when the mechanical force is difficult to lift the pile mechanically, the dredging ship needs to use a high-pressure water gun to carry out the dredging. Generally, the dredging time takes several days or tens of days. If the pile boots cannot be loosened by dredging , the underwater cutting method of divers is used for constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D11/00E02D13/00E02B17/00
Inventor 霍刚
Owner ZHEJIANG BETHEL TECH CO LTD
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