Pre-water filling steel tube hydraulic test method and special-purpose equipment thereof

A technology of hydrostatic testing and special equipment, which is applied in the direction of liquid tightness measurement by using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve the problems of low efficiency and high production cost, and reduce the occupied area , save costs, and improve the effect of suppressing production efficiency

Inactive Publication Date: 2008-10-08
烟台鲁宝钢管有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention mainly solves the problems of low efficiency and

Method used

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  • Pre-water filling steel tube hydraulic test method and special-purpose equipment thereof
  • Pre-water filling steel tube hydraulic test method and special-purpose equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, referring to Fig. 3, is processed into a medium box 4, the medium is generally an anti-rust floating liquid, a pipe transfer mechanism 3 is installed in the medium box 4, and a clamping mechanism 6 is installed on the pipette mechanism 3, and the clamping mechanism 6 It can be lifted and lowered, and a hydraulic test mechanism 5 is installed above the pipe transfer mechanism 3, and a lifting mechanism 9 and a discharge mechanism 7 are respectively installed above the two ends of the pipe transfer mechanism 3. The discharge mechanism 7 can be lifted, and the other end of the discharge mechanism 7 Install the empty water mechanism 8, the two are connected, install the feeding mechanism 2 between the lifting mechanism 9 and the rotary flushing mechanism 1, one end of the feeding mechanism 2 is connected with the rotary flushing mechanism 1, and the other end is connected with the lifting mechanism 9 .

[0020] Use the above-mentioned equipment to carry out th...

Embodiment 2

[0021] Embodiment 2, referring to Fig. 4, is the same as Embodiment 1, except that the clamping mechanism 6 does not lift up and down, and a pressure beam lifting mechanism 10 is set on the hydraulic pressure test mechanism 5, and the pressure beam lifting mechanism 10 drives the hydraulic pressure test mechanism 5. Press mechanism 5 can lift.

[0022] Using the equipment in Example 2, the specific actions of the pre-filled steel pipe hydraulic test method are as follows: first, the steel pipe is rinsed on the rotary flushing mechanism 1 to remove foreign matter on the inner surface of the steel pipe, and the action of the feeding mechanism 2 will flush the steel pipe after the flushing is completed. The steel pipe is sent to the lifting mechanism 9, and the lifting mechanism 9 descends to put the steel pipe on the pipe transfer mechanism 3. At this time, the steel pipe has been completely immersed in the hydraulic medium in the water tank 4 and filled with the hydraulic medium...

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Abstract

The invention discloses a hydrostatic test method and the dedicated device thereof for a water pre-filling steel pipe, comprising a rotary type washing mechanism (1) connected with one end of a feed mechanism (2), the other end of the feed mechanism (2) is connected with a elevating mechanism (9), a media tank (4) is arranged below the elevating mechanism (9), a pipe-moving mechanism (3) is arranged in the media tank (4),a clamping mechanism (6) is arranged on the pipe-moving mechanism (3), a hydrostatic test mechanism (5) is arranged above the clamping mechanism (6),the pipe-moving mechanism (3) is corresponding to a discharging mechanism (7) arranged upside, the discharging mechanism (7)is connected with a water control mechanism (8);the hydrostatic test method utilizing the device is showed as follows: rinsing the internal surface of the steel pipe, immerging the steel pipe in bulge medium, sealing the two ends of the steel pipe by a bulge head when the inside cavity of the steel pipe is filled with bulge medium, bulging and dwelling directly, and then discharging last; the method mentioned above does not take up the effective operation time and the device has high hydrostatic test efficiency.

Description

Technical field: [0001] The invention relates to the technical field of hydraulic test of steel pipes, in particular to a method for hydraulic test of steel pipes filled with water and special equipment thereof. Background technique: [0002] At present, the hydrostatic test of steel pipes generally adopts hydraulic testing machines, which are used to test the compactness and pressure bearing capacity of steel pipes. [0003] The principle of the hydrostatic test: Use a special hydrostatic test head to seal the two ends of the steel pipe, and fill the steel pipe body with a liquid pressure medium (usually an emulsion with the rust-proof function of the steel pipe, hereinafter referred to as "water") ), and then pressurize. When the pressure in the pipe body reaches a given pressure and continues to maintain the pressure for a specified time or the stroke of the booster cylinder that uses supplementary pressure is less than the specified value, it is considered that there is ...

Claims

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Application Information

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IPC IPC(8): G01M3/28
Inventor 王旭午李学进
Owner 烟台鲁宝钢管有限责任公司
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