CN111174991A - Sealing device and pipeline detection device - Google Patents
Sealing device and pipeline detection device Download PDFInfo
- Publication number
- CN111174991A CN111174991A CN202010112541.9A CN202010112541A CN111174991A CN 111174991 A CN111174991 A CN 111174991A CN 202010112541 A CN202010112541 A CN 202010112541A CN 111174991 A CN111174991 A CN 111174991A
- Authority
- CN
- China
- Prior art keywords
- sealing
- pipe fitting
- fixing
- pipe
- driving column
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- G01M3/022—Test plugs for closing off the end of a pipe
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pipe Accessories (AREA)
Abstract
本发明公开了一种密封装置，包括：固定件，用于与管件一端固定；密封件，设置在固定件上，用于密封管件一端的端口；内密封部，设置在固定件上，能够伸入管件并封堵管件的内腔；应用本发明的密封装置，能够在无需封堵管道两端的前提下，对管道一端的部分进行泄漏检测；本发明还提供了一种管道检测装置。
The invention discloses a sealing device, comprising: a fixing piece for fixing with one end of a pipe fitting; a sealing piece arranged on the fixing piece for sealing a port at one end of the pipe fitting; an inner sealing part, arranged on the fixing piece, capable of extending The pipe fitting is inserted into the pipe fitting and the inner cavity of the pipe fitting is blocked; the sealing device of the present invention can perform leakage detection on the part of one end of the pipe without blocking the two ends of the pipe; the present invention also provides a pipe detecting device.
Description
Technical Field
The invention relates to the field of equipment detection, in particular to a sealing device and a pipeline detection device.
Background
According to the requirements of relevant laws and regulations, in the processes of production, installation, test and periodic inspection of pressure-bearing special equipment such as boilers, pressure vessels, pressure pipelines and the like, the relevant equipment needs to be detected in a hydraulic test mode and the like so as to inspect whether the equipment leaks.
In the current pipeline leakage detection process, two ends of a pipeline are generally blocked, and then the interior of the pipeline is pressurized to detect whether the pipeline leaks or not; in large-scale equipment, pipelines are complex to arrange, and the other ends of partially bent pipelines are positioned at dead angles and are difficult to plug, so that the pipeline detection is difficult.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a sealing device which can detect the leakage of one end part of a pipeline on the premise of not plugging two ends of the pipeline.
A sealing device of an aspect of the present invention includes: the fixing piece is used for fixing one end of the pipe fitting; the sealing element is arranged on the fixing element and used for sealing the port at one end of the pipe fitting; the inner sealing part is arranged on the fixing part and can extend into the pipe fitting and block the inner cavity of the pipe fitting.
Further, the sealing element comprises a sealing plate which is connected with the fixing element in a sliding mode, the inner sealing portion comprises an extension portion which is arranged on the sealing plate and can extend into the pipe fitting, and a sealing plug is arranged on the extension portion.
Furthermore, a second driving column is arranged in the extending portion in a sliding mode, an expansion head is arranged on the second driving column, and the expansion head can enable the sealing plug to deform and plug the inner cavity of the pipe fitting.
Further, a sealing ring is arranged between the second driving column and the extension part.
Further, a second retaining ring is arranged on the second driving column and can extrude the sealing ring.
Further, a second drive post is disposed through the fixture.
Furthermore, the sealing plate is provided with a measuring hole and an injection hole, the injection hole is used for injecting fluid into the sealed pipe section, and the measuring hole is used for measuring the pressure in the sealed pipe section.
Furthermore, a first driving column is arranged on the sealing plate and is in sliding connection with the fixing piece.
Furthermore, the two sides of the fixing piece are in threaded connection with fixing bolts, and the fixing bolts are used for fixing the pipe fitting.
The pipeline detection device of another aspect of the invention comprises the sealing device.
When the sealing device is used, the sealing device can be fixed on a pipe fitting, the port at one end of the pipe fitting is sealed by the sealing element, the inner sealing part extends into the pipe fitting and seals the inner cavity of the pipe fitting, so that two ends of one end of the pipe fitting are partially sealed, and leakage detection can be performed on one end of the pipe fitting under the condition that the pipe fitting and the other end of the pipe fitting are not disassembled.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an isometric view of a sealing device according to an embodiment of the invention;
FIG. 2 is a cross-sectional view of a sealing device according to an embodiment of the present invention;
FIG. 3 is an isometric view of a sealing device according to an embodiment of the present invention with a tube removed;
FIG. 4 is an isometric view of the connector and sealing plug of the present invention;
FIG. 5 is a schematic view of the fastener of the present invention;
FIG. 6 is a schematic view of the seal of the present invention;
fig. 7 is a schematic view of the sealing plug of the present invention.
The figures contain the following reference numerals:
1. the pipe fitting, 2, a fixing part, 21, a main body part, 22, a side part, 23, a first through hole, 24, a second through hole, 25, a limiting groove, 26, a fixing hole, 27, a fixing bolt, 3, a sealing part, 31, a sealing plate, 32, an extension part, 33, a third through hole, 34, an injection hole, 35, a measuring hole, 36, a limiting plate, 37, a first driving column, 38, a first baffle ring, 39, a connecting pipe, 4, a sealing plug, 41, a transition part, 42, a mounting hole, 5, a connecting piece, 51, a second driving column, 52, a second baffle ring, 53, a sealing ring, 54 and an expansion head.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1-2, a sealing device includes: the fixing piece 2 is used for fixing one end of the pipe fitting 1; a sealing member 3 provided on the fixing member 2 for sealing a port at one end of the pipe 1; the inner sealing part is arranged on the fixing part 2 and can extend into the pipe fitting 1 and block the inner cavity of the pipe fitting 1.
Use the sealing device of this embodiment, when using, can will fix on pipe fitting 1, through the port of the 1 one end of sealing member 3 shutoff pipe fitting to stretch into 1 insides of pipe fitting and with the shutoff of the 1 inner chamber of pipe fitting with the inner seal portion, make the partial both ends of 1 one end of pipe fitting sealed, can enough carry out leak detection to the part of pipeline one end under the condition of not dismantling pipeline and shutoff pipeline other end.
Wherein, the port of 1 one end of pipe fitting can be sealed through multiple mode to sealing member 3, for example through the sealed port butt of filling up on mounting 2 with 1 one end of pipe fitting, also can fill in the port etc. of 1 one end of pipe fitting through the plug that sets up on mounting 2.
It can be understood that the inner sealing portion can also extend into the inner cavity of the pipe fitting 1 and be plugged in a plurality of ways, for example, an air bag is arranged at one end of the hollow pipe fitting 1, the hollow pipe extends into the pipe fitting 1 and blows air, so that the air bag expands and plugs the inside of the pipe fitting 1, a rubber plug can be directly plugged into a proper position from a port at one end of the pipe fitting 1, and then the port at one end of the pipe fitting 1 is plugged.
The fixing member 2 may include a main body 21 and two side portions 22 disposed at both sides of the main body 21.
As shown in fig. 3 and 6, the sealing member 3 includes a sealing plate 31 slidably connected to the fixing member 2, the inner sealing portion includes an extension portion 32 provided on the sealing plate 31 and capable of extending into the pipe fitting 1, and the extension portion 32 is provided with a sealing plug 4; wherein can be after fixing mounting 2 and pipe fitting 1, through the position of adjusting sealing member 3 for the port butt of sealing member 3 and 1 one end of pipe fitting, extension 32 drives the sealing plug 4 this moment and stretches into in the pipe fitting 1 and with 1 inner wall butt of pipe fitting, realize the sealed of 1 inner chambers of pipe fitting.
As shown in fig. 2-6, a second driving column 51 is slidably disposed in the extension portion 32, an expanding head 54 is disposed on the second driving column 51, the second driving column 51 and the expanding head 54 together form the connecting member 5, and the expanding head 54 can deform the sealing plug 4 and block the inner cavity of the pipe fitting 1; when the sealing plug 4 stretches into suitable position in the pipe fitting 1, can control the second drive column 51 and drive the expansion head 54 butt sealing plug 4 for the inner chamber of shutoff pipe fitting 1 after the sealing plug 4 warp, can choose for use this moment to realize the sealed of pipe fitting 1 inner chamber than the flexible sealing plug 4 that the pipe diameter is little, make things convenient for sealing equipment's installation.
As shown in fig. 5, the sealing plate 31 may further include a limiting plate 36 on both sides thereof, and the limiting plate 36 may cooperate with the limiting groove 25 disposed on the side portion 22 to limit the sliding of the sealing plate 31.
As shown in fig. 4, a sealing ring 53 is disposed between the second driving column 51 and the extension portion 32, and here, the sealing ring 53 can prevent the substance in the inner cavity of the sealed tube 1 from leaking out of the gap between the second driving column 51 and the extension portion 32, thereby increasing the reliability of the device.
Further, in order to enhance the sealing effect of the sealing portion, a second stop ring 52 is arranged on the second driving column 51, and the second stop ring 52 can press the sealing ring 53; when the second driving post 51 is drawn outward, the second stopper ring 52 can abut against the sealing ring 53, so that the sealing ring 53 is deformed to better close the gap between the second driving post 51 and the extending portion 32.
The specific shape of the sealing plug 4 can be referred to in fig. 7, the sealing plug 4 includes a mounting hole 42 and a transition portion 41, the mounting hole 42 is configured to be sleeved on the extension portion 32, and the diameter of the transition portion 41 is gradually increased in a direction away from the sealing plate 31.
Wherein a first stop ring 38 may be provided on the extension 32 for blocking the sealing plug 4 from sliding on the extension 32.
In order to facilitate detection after the sealing device is installed, the sealing plate 31 is provided with a measuring hole 35 and a filling hole 34, the filling hole 34 is used for filling fluid into the sealed pipe section, and the measuring hole 35 is used for measuring the pressure in the sealed pipe section; during measurement, an air pipe or a liquid pipe can be connected to the injection hole 34 to inject or inject liquid into the inner cavity of the pipe fitting 1, and a pressure gauge is connected to the measurement hole 35 to measure the pressure change in the inner cavity after liquid injection or gas injection, so as to judge whether gas is leaked or not at one time; also can be after sealing device installation is accomplished, outwards extract gas through filling hole 34, extract the vacuum in looking over the inner chamber through the manometer of access on measuring hole 35 after accomplishing, then judge whether pipe fitting 1 one end leaks.
As shown in fig. 3 and 6, the sealing plate 31 is provided with a first driving column 37, and the first driving column 37 is slidably connected with the fixing member 2; when the sealing device is installed, the position of the sealing plate 31 can be adjusted through the first driving column 37, the port at one end of the pipe fitting 1 is sealed, the first driving column 37 can be provided with threads, the position of the first driving column 37 is adjusted through the nut which is abutted to the fixing piece 2 and in threaded fit with the first driving column 37, then fine adjustment of the position of the sealing plate 31 is achieved, and the sealing stability of the sealing plate 31 is enhanced through the self-locking performance between the threads and the nut.
Specifically, the main body 21 has a first through hole 23, and the first driving column 37 passes through the first through hole.
The extension 32 includes a hollow connecting tube 39 that is sleeved outside the second driving post 51.
Further, a second driving post 51 is provided through the fixing member 2, and as shown in fig. 3 and 5, the position of the expansion head 54 can be adjusted by the second driving post 51 passing through the fixing member 2; wherein, can also set up the external screw thread on second actuating column 51, adjust the position of second actuating column 51 through the nut with mounting 2 butt and with second actuating column 51 screw-thread fit to difficult not hard up when making expansion head 54 and sealing plug 4 butt through screw thread self-locking performance, reinforcing sealing device's sealing reliability.
Specifically, the sealing plate 31 is provided with a third through hole 33, the main body 21 is provided with a second through hole 24, and the second driving column 51 passes through the third through hole 33 and the second through hole 24.
As shown in fig. 1 and 5, in order to fix the sealing device at one end of the pipe fitting 1, fixing bolts 27 are connected to both sides of the fixing member 2 by screw threads, and the fixing bolts 27 are used for fixing the pipe fitting 1; before measurement, the fixing bolts 27 on the two sides can be screwed, so that the fixing bolts 27 on the two sides clamp the pipe fitting 1 to prevent the pipe fitting 1 from loosening; wherein, both side portions 22 are provided with fixing holes 26 which are in threaded fit with fixing bolts 27.
The embodiment also provides a pipeline detection device, which comprises the sealing device, a supply device and a measurement device, wherein the supply device can supply air or liquid to the inner cavity of the pipe fitting 1 through a water pump or an air compressor, and measure the pressure in the inner cavity through a barometer hydraulic gauge to judge whether leakage occurs or not; or the supply equipment can also pump gas in the inner cavity of the pipe fitting 1 through a suction pump, and measure the vacuum degree in the inner cavity through a gas pressure meter so as to detect whether leakage exists.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A seal assembly, comprising:
the fixing piece (2) is used for being fixed with one end of the pipe fitting (1);
the sealing element (3) is arranged on the fixing element (2) and used for sealing the port at one end of the pipe fitting (1);
the inner sealing part is arranged on the fixing part (2) and can extend into the pipe fitting (1) and block the inner cavity of the pipe fitting (1).
2. A sealing arrangement according to claim 1, characterized in that the sealing element (3) comprises a sealing plate (31) in sliding connection with the fixing element (2), and that the inner sealing portion comprises an extension (32) arranged on the sealing plate (31) and able to extend into the tube element (1), and that a sealing plug (4) is arranged on the extension (32).
3. Sealing device according to claim 2, characterized in that a second driving column (51) is slidably arranged in the extension (32), and an expanding head (54) is arranged on the second driving column (51), wherein the expanding head (54) can deform the sealing plug (4) and block the inner cavity of the tube (1).
4. A sealing arrangement according to claim 3, characterized in that a sealing ring (53) is provided between the second drive column (51) and the extension (32).
5. Sealing arrangement according to claim 4, characterized in that a second stop ring (52) is arranged on the second drive column (51), which second stop ring (52) can press against the sealing ring (53).
6. A sealing arrangement according to claim 3, characterized in that the second drive column (51) is arranged through the fixing element (2).
7. The sealing device according to claim 2, wherein the sealing plate (31) is provided with a measuring hole (35) and an injection hole (34), the injection hole (34) is used for injecting fluid into the sealed pipe section, and the measuring hole (35) is used for measuring the pressure in the sealed pipe section.
8. Sealing device according to claim 2, characterized in that a first driving column (37) is arranged on the sealing plate (31), the first driving column (37) being slidably connected with the fixing member (2).
9. Sealing device according to claim 1, characterized in that a fixing bolt (27) is screwed on both sides of the fixing piece (2), the fixing bolt (27) being used for fixing the pipe piece (1).
10. A pipeline inspection device including a sealing device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010112541.9A CN111174991A (en) | 2020-02-24 | 2020-02-24 | Sealing device and pipeline detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010112541.9A CN111174991A (en) | 2020-02-24 | 2020-02-24 | Sealing device and pipeline detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111174991A true CN111174991A (en) | 2020-05-19 |
Family
ID=70654965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010112541.9A Pending CN111174991A (en) | 2020-02-24 | 2020-02-24 | Sealing device and pipeline detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111174991A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520567A (en) * | 2020-06-02 | 2020-08-11 | 广东安格尔橡塑科技有限公司 | Portable inflatable detection pipeline sealing device and detection method thereof |
| CN114441116A (en) * | 2021-08-19 | 2022-05-06 | 江苏华安石化科技有限公司 | High efficiency tube bank pressure measuring device |
| CN114542551A (en) * | 2022-04-12 | 2022-05-27 | 山东华液液压气动机电设备有限公司 | Hydraulic element seals detection device with oneself detects |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367864Y (en) * | 1999-03-19 | 2000-03-08 | 邱钦荣 | Tube Gripper |
| JP2005054993A (en) * | 2003-07-23 | 2005-03-03 | Yoshio Kikutani | Slip-off preventive device and slip-off preventive structure for bolts and nuts |
| CN103471772A (en) * | 2013-07-04 | 2013-12-25 | 河南联塑实业有限公司 | Sealing device for end parts of pipe |
| CN205350851U (en) * | 2015-12-31 | 2016-06-29 | 珠海市安粤科技有限公司 | Valve control device is promptly cut off in pneumatics of liquefied petroleum gas storage tank |
| CN205719499U (en) * | 2016-04-06 | 2016-11-23 | 广东省特种设备检测研究院珠海检测院 | Portable safety valve calibration equipment |
| CN206362491U (en) * | 2016-08-30 | 2017-07-28 | 重庆盛学科技有限公司 | Device for detecting pipe joint air-tightness |
| CN206772502U (en) * | 2017-05-12 | 2017-12-19 | 四川省特种设备检验研究院 | A kind of adapter plugging meter device for pressure-bearing class special equipment |
| CN207066665U (en) * | 2017-08-24 | 2018-03-02 | 江苏航宇环境科技有限公司 | A kind of medical gas special equipment pressure pipeline port pressure detection means |
| CN210037084U (en) * | 2019-06-04 | 2020-02-07 | 中盐安徽红四方股份有限公司 | Quick hydraulic pressure tester for steel pipe |
| CN211452763U (en) * | 2020-02-24 | 2020-09-08 | 广东省特种设备检测研究院珠海检测院 | Sealing device and pipeline detection device |
-
2020
- 2020-02-24 CN CN202010112541.9A patent/CN111174991A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367864Y (en) * | 1999-03-19 | 2000-03-08 | 邱钦荣 | Tube Gripper |
| JP2005054993A (en) * | 2003-07-23 | 2005-03-03 | Yoshio Kikutani | Slip-off preventive device and slip-off preventive structure for bolts and nuts |
| CN103471772A (en) * | 2013-07-04 | 2013-12-25 | 河南联塑实业有限公司 | Sealing device for end parts of pipe |
| CN205350851U (en) * | 2015-12-31 | 2016-06-29 | 珠海市安粤科技有限公司 | Valve control device is promptly cut off in pneumatics of liquefied petroleum gas storage tank |
| CN205719499U (en) * | 2016-04-06 | 2016-11-23 | 广东省特种设备检测研究院珠海检测院 | Portable safety valve calibration equipment |
| CN206362491U (en) * | 2016-08-30 | 2017-07-28 | 重庆盛学科技有限公司 | Device for detecting pipe joint air-tightness |
| CN206772502U (en) * | 2017-05-12 | 2017-12-19 | 四川省特种设备检验研究院 | A kind of adapter plugging meter device for pressure-bearing class special equipment |
| CN207066665U (en) * | 2017-08-24 | 2018-03-02 | 江苏航宇环境科技有限公司 | A kind of medical gas special equipment pressure pipeline port pressure detection means |
| CN210037084U (en) * | 2019-06-04 | 2020-02-07 | 中盐安徽红四方股份有限公司 | Quick hydraulic pressure tester for steel pipe |
| CN211452763U (en) * | 2020-02-24 | 2020-09-08 | 广东省特种设备检测研究院珠海检测院 | Sealing device and pipeline detection device |
Non-Patent Citations (1)
| Title |
|---|
| 詹超: "爬波检测厚壁管内壁缺陷的研究思路", 化工管理, 31 October 2019 (2019-10-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520567A (en) * | 2020-06-02 | 2020-08-11 | 广东安格尔橡塑科技有限公司 | Portable inflatable detection pipeline sealing device and detection method thereof |
| CN114441116A (en) * | 2021-08-19 | 2022-05-06 | 江苏华安石化科技有限公司 | High efficiency tube bank pressure measuring device |
| CN114542551A (en) * | 2022-04-12 | 2022-05-27 | 山东华液液压气动机电设备有限公司 | Hydraulic element seals detection device with oneself detects |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111174991A (en) | Sealing device and pipeline detection device | |
| CN113532766B (en) | Pipeline sealing performance detection device and pipeline sealing performance detection method | |
| CN203848989U (en) | Detection apparatus | |
| CN215217954U (en) | Detection apparatus for pipeline under pressure | |
| JPS5933453B2 (en) | Hydraulic pipe expansion method and device | |
| CN108279092A (en) | Air-tightness detection device, system and detection method | |
| CN118641331A (en) | A hydraulic pressure test pressure expansion plug automatic load-bearing test device | |
| CN211452763U (en) | Sealing device and pipeline detection device | |
| BR112019020288B1 (en) | DEVICE FOR CHECKING THE SEALING OF A TUBULAR JOINT, TUBULAR JOINT AND USE OF A DEVICE FOR CHECKING THE SEALING OF A TUBULAR JOINT | |
| CN217384614U (en) | Pipeline air tightness testing equipment | |
| CN116539233A (en) | Water-cooling plate leakage detection equipment | |
| CN106644279A (en) | High-pressure inflation connecting pipe defect detection device | |
| CN220893963U (en) | High-tightness hydrostatic pressure detection device for plastic pipe | |
| CN204789163U (en) | Hydrostatic test seals air bleeder | |
| CN210319434U (en) | Pipeline leakage detection device | |
| CN113267220B (en) | Pressure pipeline testing device | |
| CN113176047A (en) | Sealing section detection device and method | |
| CN204881967U (en) | Manometer of flange drum formula | |
| JP6000096B2 (en) | Heat exchanger tube leak inspection jig for heat exchanger | |
| CN217355949U (en) | Internal expansion type pipeline end sealing connection device | |
| CN111272361B (en) | Single tube pressure test and leakage detection tool for tube type heat exchanger | |
| CN113899508A (en) | A pressure test tool for low pressure pipelines | |
| CN208254746U (en) | Pressure test tool | |
| CN223512881U (en) | Air tightness detection device | |
| CN207937131U (en) | A kind of test device for air tightness for valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200519 |
|
| RJ01 | Rejection of invention patent application after publication |