CN214224470U

CN214224470U - Steel pipe gas tightness check out test set

Info

Publication number: CN214224470U
Application number: CN202120464263.3U
Authority: CN
Inventors: 赵锦添
Original assignee: Wiggs Hubei Fluid Technology Co ltd
Current assignee: Wiggs Hubei Fluid Technology Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-09-17
Anticipated expiration: 2031-03-03

Abstract

The utility model provides a steel pipe gas tightness check out test set belongs to tubulation equipment technical field. Including mount table, the sleeve pipe of setting on the mount table, fix bellows in the sleeve pipe, press depression bar and manometer, a mount pad that the upper end of bellows is connected, the manometer is connected through the trachea to the lower extreme of bellows, and the bellows overcoat is equipped with a reset spring, and reset spring's lower extreme and sheathed tube bottom are supported and are leaned on, and reset spring's upper end and the lower extreme of mount pad are supported and are leaned on. The utility model has the advantages of detection efficiency is high.

Description

Steel pipe gas tightness check out test set

Technical Field

The utility model belongs to the technical field of tubulation equipment, a steel pipe gas tightness check out test set is related to.

Background

Because weld defects may be formed at positions such as a weld, the stainless steel pipe needs to be subjected to airtightness detection after the stainless steel pipe is prepared, namely the airtightness of the pipe wall is detected, and at present, the airtightness of the stainless steel pipe produced under a specified pressure is required to be achieved. The conventional detection method is that a single steel pipe is inflated and pressurized, then the steel pipe is placed in a water tank to check whether air leakage occurs, due to the fact that air tightness connection needs to be conducted on the two ends of the steel pipe respectively, pressurization detection is conducted, the steel pipe is frequently disassembled and assembled, and detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists to current technique, provide a steel pipe gas tightness check out test set, the utility model aims to solve the technical problem how to improve detection efficiency.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a steel pipe gas tightness check out test set, its characterized in that includes the mount table, sets up the sleeve pipe on the mount table, fixes bellows, press depression bar and the manometer in the sleeve pipe, a mount pad that the upper end of bellows is connected, the manometer is connected through the trachea to the lower extreme of bellows, the bellows overcoat is equipped with a reset spring, reset spring's lower extreme and sheathed tube bottom are supported and are leaned on, reset spring's upper end and the lower extreme of mount pad are supported and are leaned on.

Furthermore, the pressing rod comprises a handle and a plug, the plug is in a conical column shape, the diameter of the lower end of the plug is smaller than that of the upper end of the plug, and a sealing baffle is arranged at the end, with the larger diameter, of the plug.

Further, a sealing retainer ring is arranged outside the mounting seat.

Furthermore, an inserted bar is inserted into the corrugated pipe, an air passage for communicating the inner cavity of the corrugated pipe with the air pipe is formed in the inserted bar, an avoiding hole is formed in the middle of the mounting seat, and the diameter of the avoiding hole is larger than that of the inserted bar.

During detection, one end of a steel pipe to be detected is inserted on the mounting seat, then a plug of the pressing rod is inserted at the other end of the steel pipe, the upper end of the steel pipe is sealed through the sealing baffle plate, the handle is held to press the steel pipe downwards, the inner cavity of the corrugated pipe is reduced after the corrugated pipe is pressed and deformed, the air pressure of the inner cavity of the steel pipe is increased, the pressure change of the pressure gauge is observed, if the pressure is increased greatly and can be maintained, the air tightness of the steel pipe is indicated to be high, otherwise, the air tightness of the steel pipe has defects, and if the pressure of the air pressure gauge is increased still less or cannot be maintained through multiple detections, the air tightness of the steel pipe is indicated to have defects.

Through this check out test set, the dismouting of steel pipe is very light, and detection efficiency can promote greatly, especially is fit for the gas tightness detection of the less steel pipe of length.

Drawings

FIG. 1 is a schematic structural view of the present steel pipe airtightness detection apparatus.

In the figure, 1, a mounting table; 2. a sleeve; 3. a bellows; 4. a pressure gauge; 5. a mounting seat; 6. a return spring; 7. a handle; 8. a plug; 9. sealing the baffle; 10. a sealing retainer ring; 11. and (4) inserting the rod.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the corrugated pipe type pressure meter comprises an installation platform 1, a sleeve 2 arranged on the installation platform 1, a corrugated pipe 3 fixed in the sleeve 2, a pressing rod and a pressure meter 4, an installation seat 5 connected with the upper end of the corrugated pipe 3, the lower end of the corrugated pipe 3 is connected with the pressure meter 4 through an air pipe, a reset spring 6 is sleeved outside the corrugated pipe 3, the lower end of the reset spring 6 is abutted against the bottom of the sleeve 2, the upper end of the reset spring 6 is abutted against the lower end of the installation seat 5, and a sealing retainer ring 10 is arranged outside the installation seat 5.

The pressing rod comprises a handle 7 and a plug 8, the plug 8 is in a conical column shape, the diameter of the lower end of the conical column shape is smaller than that of the upper end of the conical column shape, and a sealing baffle plate 9 is arranged at one end, with the larger diameter, of the plug 8.

An inserted rod 11 is inserted into the corrugated pipe 3, an air passage for communicating the inner cavity of the corrugated pipe 3 with the air pipe is arranged on the inserted rod 11, an avoiding hole is arranged in the middle of the mounting seat 5, and the diameter of the avoiding hole is larger than that of the inserted rod 11.

During detection, one end of a steel pipe to be detected is inserted into the mounting base 5, then a plug 8 of the pressing rod is inserted into the other end of the steel pipe, the upper end of the steel pipe is sealed through the sealing baffle plate 9, the handle 7 is held to press the steel pipe downwards, the inner cavity of the corrugated pipe 3 is reduced after being pressed and deformed, the air pressure of the inner cavity of the steel pipe is increased, the pressure change of the pressure gauge 4 is observed, if the pressure is increased greatly and can be maintained, the air tightness of the steel pipe is indicated to be high, otherwise, the air tightness of the steel pipe has defects, and if the pressure of the air gauge is increased still less or cannot be maintained through multiple detection, the air tightness of the steel pipe is indicated to have defects.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a steel pipe gas tightness check out test set, its characterized in that, includes mount table (1), set up sleeve pipe (2) on mount table (1), fix bellows (3), press down pressure bar and manometer (4) in sleeve pipe (2), mount pad (5) of connecting in the upper end of bellows (3), manometer (4) are connected through the trachea to the lower extreme of bellows (3), bellows (3) overcoat is equipped with a reset spring (6), the lower extreme of reset spring (6) supports with the bottom of sleeve pipe (2) and leans on, the upper end of reset spring (6) supports with the lower extreme of mount pad (5) and leans on.

2. The steel pipe airtightness detection apparatus according to claim 1, wherein the pressing lever includes a handle (7) and a plug (8), the plug (8) is in a tapered cylindrical shape having a diameter smaller at a lower end than at an upper end, and a sealing baffle (9) is provided at an end of the plug (8) having a larger diameter.

3. The steel pipe airtightness detection apparatus according to claim 1, wherein the mounting seat (5) is externally provided with a sealing collar (10).

4. The steel pipe airtightness detection apparatus according to claim 1, 2 or 3, wherein an insertion rod (11) is inserted into the corrugated pipe (3), the insertion rod (11) is provided with an air passage for communicating the inner cavity of the corrugated pipe (3) with the air pipe, the middle portion of the mounting seat (5) is provided with an avoidance hole, and the diameter of the avoidance hole is greater than that of the insertion rod (11).