Non-Newtonian fluid valve blockage cleaning mechanism and application thereof to shield tunneling machine

A non-Newtonian fluid and valve technology, applied in cleaning methods and utensils, cleaning hollow objects, chemical instruments and methods, etc., can solve the problems of valve seat closing difficulties, high maintenance/repair costs, seal leakage, etc., and achieve simple installation and operation Convenience, good dredging effect and high application value

Active Publication Date: 2021-04-06
YINGNUOWEI VALVE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current mud valve is used in the process of the shield machine. The inner wall of the mud valve is easy to adhere and a large amount of mud debris remains. When accumulated for a long time, it is easy to cause blockage inside the mud valve and affect the transmission efficiency of the mud valve. If blockage occurs, It will make it difficult for the valve seat to close, resulting in seal leakage; and, once blocked, the working environment of the shield machine is harsh, and the maintenance / repair cost is high

Method used

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  • Non-Newtonian fluid valve blockage cleaning mechanism and application thereof to shield tunneling machine
  • Non-Newtonian fluid valve blockage cleaning mechanism and application thereof to shield tunneling machine
  • Non-Newtonian fluid valve blockage cleaning mechanism and application thereof to shield tunneling machine

Examples

Experimental program
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Effect test

Embodiment 1

[0035] like figure 1 As shown, the non-Newtonian fluid valve blockage cleaning mechanism includes a circular tubular straight pipe body 11, an inclined pipe 21 arranged obliquely, a vibrating plate 22 installed at the tail end of the inclined pipe 21, and an ultrasonic wave for driving the vibrating plate 22 to vibrate. The transducer 23, a plurality of vibrating rods 30 distributed in an array, the two ends of the straight pipe body 11 are respectively fixed with flanges 13, and the flange 13 is connected with the ends of the straight pipe body 11 as a whole; The side wall of the straight pipe body 11 is provided with a mounting hole communicating with the head end of the inclined pipe 21, the edge of the vibrating plate 22 is sealed and connected with the tail end of the inclined pipe 21, and the ultrasonic transducer 23 is fixedly installed in the vibrating The outside of the plate 22; the vibrating rod 30 includes an inclined bar section 31 arranged parallel to the axial d...

Embodiment 2

[0049] Among them, in order to further improve the sealing performance, such as Figure 11 As shown, the outer side of the flange 13 is provided with an annular receiving groove 15, and the cross section of the receiving groove 15 is an arc-shaped structure. An O-ring seal is installed at the receiving groove 15 to improve sealing.

[0050] The installation and operation between the non-Newtonian fluid valve blockage cleaning mechanism and the existing mud valve is simple and convenient, without any change to the structure of the existing mud valve, so that it can meet the relevant current national standards, and the implementation effect is good.

Embodiment 3

[0052] Based on Example 2, such as figure 2 As shown, the included angle between the longitudinal direction of the oblique bar section 31 and the longitudinal direction of the horizontal bar section 32 is α, 120°≤α≤135°. The included angle between the axis of the inclined tube 21 and the axis of the straight tube body 11 is also defined synchronously. After many tests, it is found that the above angle range can minimize the axial resistance inside the straight pipe body 11 .

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Abstract

The invention relates to a non-Newtonian fluid valve blockage cleaning mechanism and application thereof to a shield tunneling machine. The non-Newtonian fluid valve blockage cleaning mechanism comprises a circular-tube-shaped straight tube body, an inclined tube arranged obliquely, a vibration plate installed at the tail end of the inclined tube, an ultrasonic transducer used for driving the vibration plate to vibrate, and a plurality of vibration rods distributed in an array mode, and flanges are fixedly installed at the two ends of the straight tube body respectively. The non-Newtonian fluid valve blockage cleaning mechanism is installed at the input end / output end of an existing slurry valve, acting vibration force and pushing force are generated, dredging operation can be conducted on a pipeline corresponding to the input end / output end of the slurry valve, and the dredging effect is good. The non-Newtonian fluid valve blockage cleaning mechanism and an existing slurry valve are easy and convenient to install and operate, the structure of the existing slurry valve cannot be changed at all, the non-Newtonian fluid valve blockage cleaning mechanism can meet the relevant standards of the current country, and the implementation effect is good.

Description

technical field [0001] The invention relates to a non-Newtonian fluid valve blockage cleaning mechanism and its application in a shield machine, belonging to the technical field of valves. Background technique [0002] The mud-water shield machine stabilizes the excavation surface by pressurizing muddy water or mud. There is a sealed partition behind the cutterhead, and a mud-water chamber is formed between the excavation surface, which is filled with mud, and the excavated soil material is mixed with the mud. Transported by the mud pump to the outside of the cave for separation. [0003] In the pipeline of the slurry shield machine, a large number of slurry valves are usually used. The existing mud valve is a valve structure commonly used in the mud pipeline system of the shield machine because of its good fluidity. Since the medium of the shield machine system is mud, the performance requirements of the valve are relatively high. [0004] The current mud valve is used i...

Claims

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Application Information

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IPC IPC(8): B08B9/027B08B7/02
CPCB08B7/028B08B9/027
Inventor 王春陈磊巩文彬李文东顾洪霞
Owner YINGNUOWEI VALVE IND
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