CN113899508A - Pressure test tool for low-pressure pipeline - Google Patents
Pressure test tool for low-pressure pipeline Download PDFInfo
- Publication number
- CN113899508A CN113899508A CN202111156392.7A CN202111156392A CN113899508A CN 113899508 A CN113899508 A CN 113899508A CN 202111156392 A CN202111156392 A CN 202111156392A CN 113899508 A CN113899508 A CN 113899508A
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- Prior art keywords
- pressure
- plate
- pipeline
- low
- screw rod
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 230000000694 effects Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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)
Abstract
The invention relates to the technical field of pressure test equipment, and discloses a pressure test tool for a low-pressure pipeline, which comprises a fixed plate, a mounting plate, a first pressure plate, a second pressure plate, a rubber plate, a connecting pipe and a screw rod, wherein the pipeline is sleeved on the mounting plate, the mounting plate is connected with the fixed plate, the fixed plate is provided with a mounting hole for the screw rod, one end of the screw rod is connected with a plurality of locking nuts, the locking nuts are respectively positioned at two sides of the fixed plate and clamp and fix one end of the screw rod on the fixed plate, the other end of the screw rod is in threaded connection with the connecting pipe, the connecting pipe sequentially penetrates through the first pressure plate and the rubber plate to be connected with the second pressure plate, and the rubber plate is clamped between the first pressure plate and the second pressure plate. The invention has the advantages of high test efficiency, accurate detection result, safety and reliability.
Description
Technical Field
The invention relates to the technical field of pressure test equipment, in particular to a pressure test tool for a low-pressure pipeline.
Background
All products under construction of the company at present have injection ventilation measurement and deck water leakage pipeline systems, and military ships also have degaussing cable pipelines. According to the requirements of a drawing test, the injection ventilation measurement and the deck water leakage pipeline adopt a water filling test; the degaussing cable pipeline adopts a watertight test.
Before the pipeline is put into use, the pipeline needs to be subjected to close test, such as: the deck water leakage pipeline system adopts an air filling test, the deck water leakage pipeline adopts an water filling test, the degaussing cable pipeline adopts a watertight test and the like; the degaussing cable pipe is characterized in that no flange is arranged at the pipe orifice, all degaussing cable pipes are required to be connected in series in order to ensure the construction efficiency in the process of close test, clamping codes are welded at the pipe orifice, tool materials such as a blind plate and rubber are adopted to seal the pipe orifice, then a small-diameter copper pipe is adopted to connect all the degaussing cable pipes of the bottom cabin, water is injected into the degaussing cable pipes, and after the degaussing cable pipes are filled with water, a hand pump is adopted to lift up the pressure to detect the water pressure; when the deck leaks water and the liquid tank ventilation pipeline is subjected to a tight test, the pipeline system is connected with the deck in a welding mode, and the pipeline does not protrude out of the deck, so that the tightness cannot be realized in a welding clamp code mode, and a wooden plug is used for plugging. However, the demagnetizing cable pipelines, the liquid tank ventilation pipelines and the deck water leakage pipelines are distributed on a whole ship and are relatively dispersed, but welding dense test work clamps need to be repeatedly laid with welding wires, so that the construction efficiency is low, the test time is long, the trouble and the labor are wasted, and the test efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the pressure test tool for the low-pressure pipeline is high in test efficiency, accurate in detection result, safe and reliable.
In order to solve the technical problems, the invention provides a pressure test tool for a low-pressure pipeline, which comprises a fixing plate, a mounting plate, a first pressing plate, a second pressing plate, a rubber plate, a connecting pipe and a screw rod, wherein the pipeline is sleeved on the mounting plate, the mounting plate is connected with the fixing plate, the fixing plate is provided with a mounting hole for the screw rod to pass through, one end of the screw rod is connected with a plurality of locking nuts which are respectively positioned at two sides of the fixed plate and clamp and fix one end of the screw rod on the fixed plate, the other end of the screw is in threaded connection with the connecting pipe, the connecting pipe is a hollow pipe, the inner wall of the connecting pipe is provided with an internal thread matched with the external thread of the screw, the connecting pipe sequentially penetrates through the first pressing plate and the rubber plate to be connected with the second pressing plate, and the rubber plate is clamped between the first pressing plate and the second pressing plate.
As a preferable scheme of the present invention, the end of the mounting plate is provided with a mounting groove for inserting and fixing a pipeline, a wall of the mounting groove is provided with a threaded hole, and a locking screw penetrates through the threaded hole to press a wall of the pipeline against the mounting groove.
In a preferred embodiment of the present invention, the mounting plate has a ring-shaped structure.
As a preferable scheme of the invention, four mounting plates are arranged and are respectively uniformly arranged in a circle at intervals.
As a preferable scheme of the invention, a medium channel through which a medium can pass is arranged in the middle of the screw.
As the preferable scheme of the invention, the fixed end of the screw rod is provided with a round pipe which is a hollow pipe.
As a preferable scheme of the invention, the round tube is provided with a fixing groove for installing a pressure gauge or a hose.
In a preferred embodiment of the present invention, the diameter of the first presser plate is larger than the diameter of the second presser plate.
As a preferable scheme of the present invention, an end portion of the rubber plate near one end of the second pressure plate is provided with a chamfer structure.
As a preferable scheme of the invention, the number of the locking nuts is three, two locking nuts are arranged on one side of the fixing plate close to the pipeline, and one locking nut is arranged on one side of the fixing plate far away from the pipeline.
Compared with the prior art, the pressure test tool for the low-pressure pipeline has the beneficial effects that:
according to the invention, the pressure test tool is extended into the pipeline, so that the pipeline is sleeved and fixed on the mounting plate, water or gas is injected into the pipeline, the rubber plate is compressed and expanded under the pressure action of water flow or air, and the rubber plate is tightly contacted with the inner wall of the pipeline, so that the sealing effect is achieved, the pressure measurement is convenient, the test efficiency is high, the water flow or air leakage can be effectively prevented, and the detection result is accurate; wherein, through a plurality of lock nut's setting, can fix the screw rod on the second clamp plate tightly, can effectively avoid revealing because of the pressure that the tight test result of not being complete caused to guarantee the accuracy of close examination result, can also prevent that the rubber slab from popping out under the pressure effect and causing the injury, safe and reliable to operating personnel.
Drawings
Fig. 1 is a schematic structural diagram of a pressure testing tool for a low-pressure pipeline according to an embodiment of the present invention;
FIG. 2 is a schematic view of the installation of a round tube;
in the figure, 1, fixing plate; 2. mounting a plate; 21. mounting grooves; 3. a first platen; 4. a second platen; 5. a rubber plate; 6. a connecting pipe; 7. a screw; 71. a media channel; 72. a circular tube; 721. fixing grooves; 8. locking the nut; 9. and locking the screw.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., used herein are used in the orientation or positional relationship indicated in the drawings, which are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the preferred embodiment of the pressure testing tool for low-pressure pipelines provided by the present invention includes a fixing plate 1, a mounting plate 2, a first pressing plate 3, a second pressing plate 4, a rubber plate 5, a connecting pipe 6 and a screw 7; preferably, the screw 7 is a seamless steel tube, the length of the screw 7 is 450mm to 600mm, the diameter of the screw 7 is phi 29mm to phi 31mm, the length of the external thread of the screw 7 is equal to the length of the screw 7, a pipeline is sleeved on the mounting plate 2, the mounting plate 2 is connected with the fixing plate 1, a mounting hole through which the screw 7 can pass is formed in the fixing plate 1, one end of the screw 7 is connected with a plurality of locking nuts 8, the locking nuts 8 are respectively located on two sides of the fixing plate 1 and clamp and fix one end of the screw 7 on the fixing plate 1, the other end of the screw 7 is in threaded connection with the connecting tube 6, specifically, the connecting tube 6 is a hollow tube, the inner wall of the connecting tube 6 is provided with an internal thread matched with the external thread of the screw 7, the connecting tube 6 sequentially passes through the first pressing plate 3 and the rubber plate 5 to be connected with the second pressing plate 4, the rubber plate 5 is clamped between the first pressing plate 3 and the second pressing plate 4; it should be further noted that, in order to facilitate checking and reading the depth of the rubber plate 5 extending into the pipeline, the connecting pipe 6 is provided with scale marks; for a more stable connection, the connecting tube 6 is welded to the second pressure plate 4.
When a pipeline tightness test is carried out, the first pressing plate 3 and the rubber plate 5 are sequentially inserted into the connecting pipe 6, the screw 7 is connected onto the connecting pipe 6, the plurality of nuts are sequentially screwed, so that the assembly of the pressure test tool is completed, then the pressure test tool is stretched into the pipeline, the pipeline is sleeved and fixed on the mounting plate 2, water or air is injected or inflated into the pipeline, the rubber plate 5 is compressed and expanded under the pressure action of water flow or air, the rubber plate 5 is tightly contacted with the inner wall of the pipeline, the sealing effect is achieved, the pressure test is convenient, the test efficiency is high, the water flow or air can be effectively prevented from leaking, and the detection result is accurate; wherein, through a plurality of lock nut 8's setting, can fix screw rod 7 on second clamp plate 4 tightly, can effectively avoid revealing because of the pressure that leads to the fact of not completely tightening to guarantee the accuracy of close examination result, can also prevent that rubber slab 5 from popping out under the pressure effect and causing injury, safe and reliable to operating personnel.
Exemplarily, the end of mounting panel 2 be equipped with and supply the pipeline fixed mounting groove 21 of pegging graft, be equipped with the screw hole on the cell wall of mounting groove 21, locking screw 9 passes the screw hole compresses tightly the pipe wall of pipeline on the mounting groove 21, can be better with fixing the pipeline on the pressure testing frock, prevent that the pipeline from rotating or removing, prevent to bump at other personnel mistake and lead to pressure to reveal to guarantee going on smoothly of the close examination of pipeline.
Illustratively, in one embodiment, the mounting plate 2 is a ring structure, and the number of the mounting grooves 21 is at least four at regular intervals, and in another embodiment, the mounting plate 2 is four and is respectively arranged in a circle at regular intervals, so as to ensure that the pipeline is stably mounted without rotation or displacement.
For example, as shown in fig. 2, a medium channel 71 through which a medium can pass is formed in the middle of the screw 7, so that an operator can inject water or air directly through the pressure testing tool without opening an injection port in the pipeline or injecting the water or air at the other end of the pipeline, the operation time is reduced, and the test efficiency is improved.
Illustratively, as shown in fig. 2, a round tube 72 is arranged at the fixed end of the screw rod 7, the round tube 72 is a hollow tube, a fixing groove 721 for installing a pressure gauge or a hose is arranged on the round tube 72, preferably, the round tube 72 is a copper tube, the length of the round tube 72 is 70mm to 100mm, the diameter of the round tube 72 is phi 25mm to phi 27mm, and the round tube is convenient for fixing or connecting a detection instrument and is convenient for taking.
Exemplarily, the diameter of first clamp plate 3 is greater than the diameter of second clamp plate 4, rubber slab 5 is close to the tip of the one end of second clamp plate 4 is equipped with the chamfer structure, conveniently stretches into the pipeline with the pressure testing frock.
Exemplarily, lock nut 8 is equipped with threely, one side that fixed plate 1 is close to the pipeline is equipped with two, one side that fixed plate 1 kept away from the pipeline is equipped with one, through two lock nut 8's setting, plays locking effect, further improves the steadiness of connecting.
In the description of the present invention, it is to be understood that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, either fixedly connected, detachably connected, or integrally connected, unless otherwise explicitly stated or limited; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a pressure testing frock for low pressure pipeline, its characterized in that includes fixed plate, mounting panel, first clamp plate, second clamp plate, rubber slab, connecting pipe and screw rod, and the pipeline cup joints on the mounting panel, the mounting panel with the fixed plate is connected, be equipped with on the fixed plate and supply the mounting hole that the screw rod passed, the one end of screw rod is connected with a plurality of lock nut, and is a plurality of lock nut is located respectively the both sides of fixed plate will the one end of screw rod is pressed from both sides tightly to be fixed on the fixed plate, the other end of screw rod with connecting pipe threaded connection, pass in proper order on the connecting pipe first clamp plate with the rubber slab with the second clamp plate is connected, the rubber slab clamp is established first clamp plate with between the second clamp plate.
2. The pressure test tool for the low-pressure pipeline as claimed in claim 1, wherein the mounting plate is provided with a mounting groove at the end thereof for the pipeline to be inserted and fixed, a threaded hole is formed in the wall of the mounting groove, and a locking screw penetrates through the threaded hole to press the wall of the pipeline against the mounting groove.
3. The pressure test tool for the low-pressure pipeline as claimed in claim 1, wherein the mounting plate is of an annular structure.
4. The pressure test tool for the low-pressure pipeline as claimed in claim 1, wherein the four mounting plates are uniformly arranged in a circle at intervals.
5. The pressure test tool for the low-pressure pipeline according to claim 1, wherein a medium channel through which a medium can pass is formed in the middle of the screw.
6. The pressure test tool for the low-pressure pipeline as claimed in claim 5, wherein a round pipe is arranged at the fixed end of the screw rod, and the round pipe is a hollow pipe.
7. The pressure test tool for the low-pressure pipeline according to claim 6, wherein a fixing groove for installing a pressure gauge or a hose is formed on the circular pipe.
8. The pressure testing tool for the low-pressure pipeline according to claim 1, wherein the diameter of the first pressure plate is larger than that of the second pressure plate.
9. The pressure test tool for the low-pressure pipeline as claimed in claim 8, wherein a chamfer structure is arranged at the end part of one end, close to the second pressure plate, of the rubber plate.
10. The pressure test tool for the low-pressure pipeline according to any one of claims 1 to 9, wherein the number of the locking nuts is three, two are arranged on one side of the fixing plate close to the pipeline, and one is arranged on one side of the fixing plate far away from the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156392.7A CN113899508A (en) | 2021-09-29 | 2021-09-29 | Pressure test tool for low-pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156392.7A CN113899508A (en) | 2021-09-29 | 2021-09-29 | Pressure test tool for low-pressure pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113899508A true CN113899508A (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111156392.7A Pending CN113899508A (en) | 2021-09-29 | 2021-09-29 | Pressure test tool for low-pressure pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113899508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986413A (en) * | 2022-06-22 | 2022-09-02 | 四川航天长征装备制造有限公司 | Rocket engine jet pipe bonding clamping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203162404U (en) * | 2013-01-25 | 2013-08-28 | 中国华冶科工集团有限公司 | Cooling water pipe pressure test connector |
| CN104165732A (en) * | 2014-08-08 | 2014-11-26 | 无锡市鑫盛换热器制造有限公司 | Pressure test device |
| KR20170024236A (en) * | 2015-08-25 | 2017-03-07 | 황철주 | Jig for water pressure test |
| CN207215574U (en) * | 2017-08-16 | 2018-04-10 | 自贡华西能源工业有限公司 | A kind of closure frock for pipe fitting pressure testing |
| CN109540415A (en) * | 2018-10-31 | 2019-03-29 | 沪东中华造船(集团)有限公司 | A kind of ship pipeline tightness test tooling |
| CN208886235U (en) * | 2018-06-07 | 2019-05-21 | 中国石油集团海洋工程（青岛）有限公司 | A kind of improved pipeline PRESSURE TESTING BLIND FLANGE |
| CN113155366A (en) * | 2021-05-12 | 2021-07-23 | 中船黄埔文冲船舶有限公司 | Pipeline close-test expansion plug |
-
2021
- 2021-09-29 CN CN202111156392.7A patent/CN113899508A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203162404U (en) * | 2013-01-25 | 2013-08-28 | 中国华冶科工集团有限公司 | Cooling water pipe pressure test connector |
| CN104165732A (en) * | 2014-08-08 | 2014-11-26 | 无锡市鑫盛换热器制造有限公司 | Pressure test device |
| KR20170024236A (en) * | 2015-08-25 | 2017-03-07 | 황철주 | Jig for water pressure test |
| CN207215574U (en) * | 2017-08-16 | 2018-04-10 | 自贡华西能源工业有限公司 | A kind of closure frock for pipe fitting pressure testing |
| CN208886235U (en) * | 2018-06-07 | 2019-05-21 | 中国石油集团海洋工程（青岛）有限公司 | A kind of improved pipeline PRESSURE TESTING BLIND FLANGE |
| CN109540415A (en) * | 2018-10-31 | 2019-03-29 | 沪东中华造船(集团)有限公司 | A kind of ship pipeline tightness test tooling |
| CN113155366A (en) * | 2021-05-12 | 2021-07-23 | 中船黄埔文冲船舶有限公司 | Pipeline close-test expansion plug |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986413A (en) * | 2022-06-22 | 2022-09-02 | 四川航天长征装备制造有限公司 | Rocket engine jet pipe bonding clamping device |
| CN114986413B (en) * | 2022-06-22 | 2024-01-30 | 四川航天长征装备制造有限公司 | Rocket engine spray pipe bonding clamping device |
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