CN117346979A - Pressure pipeline weld detection device - Google Patents
Pressure pipeline weld detection device Download PDFInfo
- Publication number
- CN117346979A CN117346979A CN202210747710.5A CN202210747710A CN117346979A CN 117346979 A CN117346979 A CN 117346979A CN 202210747710 A CN202210747710 A CN 202210747710A CN 117346979 A CN117346979 A CN 117346979A
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- CN
- China
- Prior art keywords
- sealing ring
- pipeline
- pressure
- welding seam
- outer side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a pressure pipeline welding seam detection device which consists of a sealing ring and a pressurizing device, wherein the sealing ring is in sealing fit with the outer side of a pipeline and covers the upper part of a welding seam, the inner wall of the sealing ring is provided with an air groove which is connected with a recess end to end and is aligned with the welding seam of the pipeline, the joint of the sealing ring and the pipeline is provided with an adhesive layer, a gas pipe is connected between the sealing ring and the pressurizing device, one end of the gas pipe, which is connected with the sealing ring, is communicated with the air groove, and the outer side of the sealing ring is also provided with a pressure gauge which is communicated with the air groove and used for detecting the internal pressure. The sealing ring is fixed on the outer side of the pipeline, the air groove is connected with the welding seam to form a sealed pressure measuring space, after a certain amount of air is filled, the sealing performance of the welding seam is judged by measuring whether the internal pressure is changed within a certain time, the whole detection process is simple to operate, convenient and quick, and the detection efficiency is high.
Description
Technical Field
The invention relates to the technical field of pipeline detection, in particular to a pressure pipeline welding seam detection device.
Background
The pressure pipeline is a material with a very wide application range, and is widely applied to the industrial and agricultural fields, the infrastructure field and our daily life, such as water pipes and gas pipelines which are common in our daily life, and further such as petroleum pipelines and natural gas pipelines in the industrial field. The quality of the welded joint of the pressure pipeline is related to whether the pipeline is compact or not, so that the traditional inspection method is to plug two ends of the pipeline, introduce gas with certain pressure into the pipeline, immerse the whole pipeline into water, judge whether the pipeline is compact or not according to whether bubbles exist in the water or pour the water into the pipeline, keep certain pressure and time, and see whether leakage occurs or not. However, this conventional inspection method is very complicated.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the pressure pipeline welding seam detection device, which can effectively solve the problems of the background technology.
The technical scheme adopted for solving the technical problems is as follows:
pressure pipeline welding seam detection device comprises sealing ring and pressure device, sealing ring laminating is in the pipeline outside and cover in welding seam department top, the sealing ring inner wall is equipped with the sunken air groove of end to end connection and this air groove aligns with pipeline welding seam department, sealing ring and pipeline laminating department are equipped with the viscose layer, the gas-supply pipe has been connected between sealing ring and the pressure device, gas-supply pipe connection sealing ring one end lets in inside and air groove intercommunication, the sealing ring outside still is equipped with the manometer with air groove intercommunication detection internal pressure.
Further, the sealing ring is provided with a splicing part which is fixedly connected end to end, and the splicing part is clamped with a sealing glue layer and a locking fixing nail inserted from the outer side.
Further, a plurality of lock rings sleeved at the openings at the two ends for extrusion locking are arranged on the outer side of the seal ring.
Further, an air pressure release control switch for controlling and releasing the internal pressure is arranged on the outer side of the sealing ring.
Further, the gas pipe is provided with a control gas valve.
Compared with the prior art, the invention has the beneficial effects that:
the sealing ring is fixed on the outer side of the pipeline, the air groove is connected with the welding seam to form a sealed pressure measuring space, after a certain amount of air is filled, whether the internal pressure is changed within a certain time is measured to judge the tightness of the welding seam, the whole detection process is simple to operate, convenient and quick, the detection efficiency is high, the practicability is high, and the sealing ring is suitable for detection of different pipelines.
Drawings
FIG. 1 is a schematic diagram of the overall structure connection of the present invention;
FIG. 2 is a schematic view of the internal structure of the seal ring of the present invention.
Reference numerals in the drawings:
the device comprises a sealing ring 1, a pressurizing device 2, an air tank 4, an adhesive layer 5, an air pipe 6, a pressure gauge 7, a splicing part 8, an adhesive layer 9, a fixing nail 10, a locking ring 11, an air pressure release control switch 12 and an air valve 13.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-2, the invention provides a pressure pipeline welding seam detection device, which consists of a sealing ring 1 and a pressurizing device 2, wherein the sealing ring 1 is in sealing fit with the outer side of a pipeline and covers the upper part of a welding seam, the inner wall of the sealing ring 1 is provided with an air groove 4 which is connected with a recess end to end and is aligned with the welding seam of the pipeline, the joint of the sealing ring 1 and the pipeline is provided with an adhesive layer 5, a gas pipe 6 is connected between the sealing ring 1 and the pressurizing device 2, one end of the gas pipe 6 is connected with the sealing ring 1 and is communicated with the air groove 4, and the outer side of the sealing ring 1 is also provided with a pressure gauge 7 communicated with the air groove 4 to detect the internal pressure.
The sealing ring 1 is provided with a splicing part 8 which is fixedly connected end to end, the splicing part 8 is clamped with a sealing glue layer 9 and a fixing nail 10 which is inserted into and locked from the outer side, the splicing part 8 is conveniently assembled on the outer side of a pipeline, the tightness of the joint is enhanced through the sealing glue layer 9, the fixity of the joint is enhanced through the fixing nail 10, and air leakage is avoided.
The sealing ring 1 outside is equipped with a plurality of cover and extrudes locking catch 11 of locking in both ends opening part, and catch 11 is used for strengthening the leakproofness of both ends opening part, prevents that the gas of filling from revealing from both sides, influences the pressure of inside detection.
The outside of the sealing ring 1 is also provided with an air pressure release control switch 12 for controlling and releasing the internal pressure, the air pressure release control switch 12 is used for releasing the internal pressure after detection is completed, the later disassembly work is convenient, and the air pressure release control switch 12 must be kept in a closed state when gas is filled and detection is performed.
The gas pipe 6 is provided with a control gas valve 13, the control gas valve 13 is used for controlling the pressurizing device 2 to convey gas into the sealing ring 1, the control gas valve 13 is opened in the process of conveying gas, and when the gas conveying is finished and under detection, the control gas valve 13 is in the closed state, so that the phenomenon that the gas in the pressurizing device 2 flows backwards is prevented.
Compared with the prior art, the sealing ring 1 is fixed on the outer side of the pipeline, the air groove 4 is connected with the welding seam to form a sealed pressure measuring space, after certain gas is filled, the sealing performance of the welding seam is judged by measuring whether the internal pressure is changed in a certain time, the whole detection process is simple to operate, convenient and fast, and the detection efficiency is high.
Working principle: when the sealing ring is used, the sealing ring 1 is sleeved at a pipeline welding seam, after the splicing part 8 is fixed by the fixing nails 10, locking rings are additionally arranged at two sides of the sealing ring 1 to squeeze and lock, the pressurizing device 2 is started, certain gas is filled into the gas tank 4 to increase the internal pressure, the pressure gauge 7 monitors the internal pressure at any time, after the gas is filled to enable the internal pressure to reach certain pressure, the gas filling is stopped, the sealing ring is kept for a period of time, then the numerical change of the pressure gauge 7 is observed, if the numerical value of the pressure gauge 7 is changed, the poor sealing performance of the welding seam is proved, otherwise, the sealing performance of the welding seam is proved to be too close.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. Pressure pipeline welding seam detection device, its characterized in that: the sealing ring is in sealing fit with the outer side of a pipeline and covers the upper portion of a welding seam, the inner wall of the sealing ring is provided with an air groove which is connected with the recess end to end and is aligned with the welding seam of the pipeline, an adhesive layer is arranged at the joint of the sealing ring and the pipeline, a gas pipe is connected between the sealing ring and the pressurizing device, one end of the gas pipe, which is connected with the sealing ring, is communicated with the air groove, and a pressure gauge which is communicated with the air groove to detect the internal pressure intensity is further arranged on the outer side of the sealing ring.
2. The pressure pipe weld detection apparatus according to claim 1, wherein: the sealing ring is provided with a splicing part which is fixedly connected end to end, and the splicing part is clamped with a sealing adhesive layer and a locking fixing nail inserted from the outer side.
3. The pressure pipe weld detection apparatus according to claim 1, wherein: and a plurality of locking rings sleeved at the openings at the two ends for extrusion locking are arranged on the outer side of the sealing ring.
4. The pressure pipe weld detection apparatus according to claim 1, wherein: and an air pressure release control switch for controlling and releasing the internal pressure is also arranged on the outer side of the sealing ring.
5. The pressure pipe weld detection apparatus according to claim 1, wherein: the gas pipe is provided with a control gas valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747710.5A CN117346979A (en) | 2022-06-28 | 2022-06-28 | Pressure pipeline weld detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747710.5A CN117346979A (en) | 2022-06-28 | 2022-06-28 | Pressure pipeline weld detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117346979A true CN117346979A (en) | 2024-01-05 |
Family
ID=89363743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210747710.5A Pending CN117346979A (en) | 2022-06-28 | 2022-06-28 | Pressure pipeline weld detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117346979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119915456A (en) * | 2025-02-11 | 2025-05-02 | 浙江双银特材科技有限公司 | Gas tightness testing device and method for welding seam of stainless steel pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206488903U (en) * | 2017-02-28 | 2017-09-12 | 四川理工学院 | Pressure pipeline weld seam detection means |
| CN216695466U (en) * | 2022-01-04 | 2022-06-07 | 天津市达安特工程检测有限公司 | Pipeline welding seam detects uses water pressure monitoring devices |
-
2022
- 2022-06-28 CN CN202210747710.5A patent/CN117346979A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206488903U (en) * | 2017-02-28 | 2017-09-12 | 四川理工学院 | Pressure pipeline weld seam detection means |
| CN216695466U (en) * | 2022-01-04 | 2022-06-07 | 天津市达安特工程检测有限公司 | Pipeline welding seam detects uses water pressure monitoring devices |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119915456A (en) * | 2025-02-11 | 2025-05-02 | 浙江双银特材科技有限公司 | Gas tightness testing device and method for welding seam of stainless steel pipe |
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