CN113049198A - Airtight laboratory bench device of LNG - Google Patents
Airtight laboratory bench device of LNG Download PDFInfo
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- CN113049198A CN113049198A CN202110366077.0A CN202110366077A CN113049198A CN 113049198 A CN113049198 A CN 113049198A CN 202110366077 A CN202110366077 A CN 202110366077A CN 113049198 A CN113049198 A CN 113049198A
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- lng
- plate
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- gas cylinder
- clamping
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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
- G01M3/32—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 containers, e.g. radiators
- G01M3/3236—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 containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—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 containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to an LNG airtight experiment table device which comprises a connecting pipeline and a pressure gauge, wherein the connecting pipeline is used for communicating an LNG gas cylinder to be detected with an external gas source, the LNG gas cylinder is placed on a bottom plate, a clamping mechanism used for rapidly clamping and fixing the LNG gas cylinder is arranged on the bottom plate, and a pressure regulator positioned on one side of the pressure gauge, which is far away from the LNG gas cylinder, is arranged on the connecting pipeline and used for reducing the pressure to the pressure specified in an airtight experiment, and the pressure can be directly observed through the pressure gauge, so that the specified pressure of the airtight experiment is realized. This scheme is through being equipped with the pressure regulator that is located the manometer and keeps away from LNG gas cylinder one side on connecting the pipeline, and pressure regulator can make pressure reduce the pressure of gas tightness test regulation, and this pressure can come out through manometer direct observation to realized gas tightness test's regulation pressure, compared in traditional LNG airtight experiment platform cost lower, and the operation is simple and convenient also more.
Description
Technical Field
The invention relates to the technical field of LNG airtight experiments.
Background
The liquefied natural gas storage tank is a professional product for storing liquefied natural gas, belongs to special equipment, is a 06Ni9DR material, is manufactured by the processes of flaw detection, hydrostatic pressure test and technical supervision bureau on-site inspection, issuing a pressure container inspection certificate, external derusting, paint spraying and the like, and has strict quality identification on the materials, the appearance size, the weld quality, the operation quality, the installation quality, internal devices and safety accessories of a pressed element.
At present, the inspection of LNG gas cylinders is widely popularized in China, the mutual geometric positions of a tank body welding joint, a welding line, a tank body end socket and each pressed element and the like are strictly checked through X-ray nondestructive testing and magnetic particle inspection, the tightness and the pressure resistance of a product are also strictly detected, the gas tightness test is an indispensable item in an inspection project, the existing gas tightness test bed is high in price and complex in operation, and therefore the LNG gas tightness test bed device is provided to solve the problems.
Disclosure of Invention
The invention provides an LNG airtight experiment table device aiming at the technical problems in the prior art, and solves the problems that the existing airtight experiment table is high in price and complex in operation.
The technical scheme for solving the technical problems is as follows: the utility model provides a LNG airtight experiment table device, includes connecting line and the manometer that will wait the LNG gas cylinder that detects and external air supply intercommunication, the LNG gas cylinder is placed on the bottom plate, be equipped with on the bottom plate and be used for the fixture fixed with the quick centre gripping of LNG gas cylinder, be equipped with on the connecting line and be located the pressure regulator that the LNG gas cylinder one side was kept away from to the manometer for make pressure reduce the pressure of gas tightness test regulation, this pressure can come out through manometer direct observation to gas tightness test's regulation pressure has been realized.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the pressure regulator is a pressure reducing valve, and the external air source is a nitrogen cylinder.
Further, fixture includes grip block, the connecting plate that drives the grip block motion, the atress returning face plate and the U type mount, pivot and the connecting block of drive connecting plate upset, the quantity of U type mount is four and is located four sides all around respectively, is the rectangular distribution, the both ends of pivot respectively with two inside wall swing joint of U type mount, the connecting block suit is in the pivot, atress returning face plate and one side fixed connection that the connecting block is close to the LNG gas cylinder, the upper surface fixed connection of connecting plate and atress returning face plate, the grip block is established on the connecting plate.
Further, the stress turnover plate is formed by connecting a vertical plate and an inclined plate up and down, the vertical plate is connected with the connecting block, and the inclined plate inclines towards the LNG cylinder and the inclination angle is an acute angle.
Further, be located the front and the back the grip block is higher than the grip block that is located the left and right sides, one side that the grip block is close to the LNG gas cylinder has an interior concave part towards the one side indent of keeping away from the LNG gas cylinder, interior concave part is the arc.
Further, be equipped with adjustment mechanism between grip block and the connecting plate, adjustment mechanism includes that threaded rod and restriction grip block are linear movement's slider and slide rail, the top at the connecting plate is established to the slide rail, slider and slide rail sliding connection, its upper surface and grip block fixed connection, bearing and grip block swing joint are passed through to the one end of threaded rod, and its other end runs through and extends to the connecting plate and keeps away from one side of LNG gas cylinder, the screw through-hole with threaded rod threaded connection is seted up to the side of connecting plate.
Further, be equipped with canceling release mechanical system on the bottom plate, canceling release mechanical system includes lateral wall and reset spring, the quantity of lateral wall is four, four the lateral wall all is connected with the top of bottom plate is perpendicular, four the lateral wall is located four sides all around respectively, reset spring's quantity is four, reset spring's one end and lateral wall are close to one side fixed connection of LNG gas cylinder, and one side fixed connection that LNG gas cylinder was kept away from to its other end and atress returning face plate.
Furthermore, the side of the connecting plate is provided with a threaded through hole in threaded connection with the threaded rod.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
this airtight laboratory bench device of LNG, through be equipped with the pressure regulator that is located the manometer and keeps away from LNG gas cylinder one side on the connecting pipeline, pressure regulator can make pressure reduce the pressure of gas tightness test regulation, this pressure can come out through manometer direct observation, thereby realized gas tightness test's regulation pressure, compare in traditional airtight laboratory bench of LNG cost lower, and operate simple and convenient more also, the installation that LNG gas cylinder can be quick on the erection joint is fixed simultaneously and dismantles, make whole device use more convenient and practical.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the clamping plate of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a bottom plate, 2, a U-shaped fixing frame, 3, a side wall, 4, a connecting plate, 5, a threaded rod, 6, a sliding rail, 7, a sliding block, 8, an LNG (liquefied natural gas) cylinder, 9, a connecting pipeline, 10, a pressure gauge, 11, a pressure regulator, 12, a connecting block, 13, a rotating shaft, 14, a reset spring, 15, a stress turnover plate, 16, a clamping plate, 17 and an inner concave part.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Please refer to fig. 1 and fig. 2, an LNG airtight experiment table apparatus in this embodiment, is used for detecting the airtightness of an LNG gas cylinder 8, and mainly comprises a connecting pipeline 9 for connecting the LNG gas cylinder 8 to be detected with an external gas source and a pressure gauge 10, the LNG gas cylinder 8 is placed on a bottom plate 1, a clamping mechanism for rapidly clamping and fixing the LNG gas cylinder 8 is arranged on the bottom plate 1, a pressure regulator 11 located on one side of the pressure gauge 10 away from the LNG gas cylinder 8 is arranged on the connecting pipeline 9, so as to reduce the pressure to the pressure specified in the airtight test, and the pressure can be directly observed through the pressure gauge 10, thereby realizing the specified pressure of the airtight test.
The pressure regulator 11 is a pressure reducing valve, the external gas source is a nitrogen cylinder, and the external gas source provides power to convey gas into the LNG cylinder 8 through a conveying pipeline.
The clamping mechanism comprises a clamping plate 16, connecting plates 4 driving the clamping plate 16 to move, stress turnover plates 15 driving the connecting plates 4 to turn over, U-shaped fixing frames 2, rotating shafts 13 and connecting blocks 12, wherein the number of the U-shaped fixing frames 2 is four, the U-shaped fixing frames are respectively positioned on the front side, the rear side, the left side and the right side and are distributed in a rectangular mode, the number of the rotating shafts 13 is four, two ends of each rotating shaft 13 are respectively movably connected with two inner side walls 3 of the U-shaped fixing frame 2 through bearings, the number of the connecting blocks 12 is four, the four connecting blocks 12 are respectively sleeved on the four rotating shafts 13, the number of the stress turnover plates 15 is four, the four stress turnover plates 15 are respectively and fixedly connected with one sides of the four connecting blocks 12 close to LNG gas cylinders 8, the number of the connecting plates 4 is four, the four connecting plates 4 are respectively and fixedly connected, four clamping plates 16 are respectively arranged on four connecting plates 4, stress turnover plates 15 are formed by vertically connecting vertical plates and inclined plates, the vertical plates are connected with connecting blocks 12, the inclined plates incline towards the LNG gas cylinder 8, and the inclination angle of the inclined plates is an acute angle, when the LNG gas cylinder 8 downwards extrudes the four stress turnover plates 15, the four stress turnover plates 15 can rotate through rotating shafts 13 to drive the clamping plates 16 to move, so that the four clamping plates 16 can clamp and fix the LNG gas cylinder 8.
For ensuring that LNG gas cylinder 8 is higher by the stability after the centre gripping, the grip block 16 that is located the front and the back is higher than the grip block 16 that is located the left and right sides, thus, four grip blocks 16 can be respectively to the four side application of force of all around of LNG gas cylinder 8, and simultaneously, grip block 16 is close to one side indent of LNG gas cylinder 8 towards keeping away from one side indent of LNG gas cylinder 8 has an interior recess 17, interior recess 17 is the arc, after LNG gas cylinder 8 is by the grip block 16 centre gripping, interior recess 17 is except applying a clamping-force to LNG gas cylinder 8, still have certain spacing effect to it, make LNG gas cylinder 8's centre gripping stability more.
In order to further solve the problem that the clamping plate 16 can clamp and fix LNG cylinders 8 with different diameters, an adjusting mechanism is arranged between the clamping plate 16 and the connecting plate 4, the adjusting mechanism comprises a threaded rod 5, a sliding block 7 and a sliding rail 6 which limit the clamping plate 16 to do linear movement, the clamping plate 16 is L-shaped, the sliding rail 6 is arranged at the top of the connecting plate 4, the sliding block 7 is connected with the sliding rail 6 in a sliding way, the upper surface of the screw rod is fixedly connected with a clamping plate 16, one end of the screw rod 5 is movably connected with the clamping plate 16 through a bearing, the other end of the connecting rod penetrates through and extends to one side of the connecting plate 4 far away from the LNG gas bottle 8, a threaded through hole in threaded connection with the threaded rod 5 is arranged on the side surface of the connecting plate 4, by rotating the threaded rod 5, the threaded rod moves through threaded connection with the threaded through hole, and the clamping plates 16 are driven to move, so that the two opposite clamping plates 16 can clamp LNG gas cylinders 8 with different diameters.
The 15 atress upsets of atress returning plate, realize the centre gripping, for making the 15 resets of atress returning plate, still be equipped with canceling release mechanical system on the bottom plate 1, canceling release mechanical system includes lateral wall 3 and reset spring 14, the quantity of lateral wall 3 is four, four lateral walls 3 all are connected perpendicularly with the top of bottom plate 1, four lateral walls 3 are located four sides all around respectively, be the rectangle distribution, reset spring 14's quantity is four, reset spring 14's one end and lateral wall 3 are close to one side fixed connection of LNG gas cylinder 8, one side fixed connection that LNG gas cylinder 8 was kept away from to its other end and atress returning plate 15, after 15 upsets of atress returning plate, reset spring 14 is stretched, make the 15 resets of atress returning plate through reset spring 14's tension.
The working principle of the above embodiment is as follows:
the LNG cylinder 8 is placed on the upper part of the bottom ends of the four stress turnover plates 15, the LNG cylinder 8 is slowly loosened, the LNG cylinder 8 moves downwards due to gravity, the four stress turnover plates 15 are extruded, the four stress turnover plates 15 are overturned under stress, the reset spring 14 is compressed, the overturned stress turnover plates 15 drive the clamping plates 16 to move, when the bottom end of the LNG cylinder 8 is in contact with the upper surface of the bottom plate 1, the clamping plates 16 just move to a horizontal state, then the threaded rod 5 is rotated, the threaded rod 5 is moved through threaded connection with the threaded through hole, the clamping plates 16 are driven to move, when the LNG cylinder 8 is clamped and fixed and then the LNG cylinder 8 with the same diameter is clamped, the LNG cylinder 8 can be clamped and fixed without adjusting the position of the clamping plates 16, then the connecting pipeline 9 is connected with the pipe orifice of the LNG cylinder 8, the detection can be started, and after the detection is completed, the connecting pipeline 9 and the LNG gas cylinder 8 are disassembled, the LNG gas cylinder 8 is lifted upwards, and the stressed turnover plate 15 is reset through the reset spring 14.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides an airtight laboratory bench device of LNG, includes connecting line (9) and manometer (10) that will wait to detect LNG gas cylinder (8) and external air supply intercommunication, its characterized in that: LNG gas cylinder (8) are placed on bottom plate (1), be equipped with on bottom plate (1) and be used for the fixed fixture of quick centre gripping with LNG gas cylinder (8), be equipped with pressure regulator (11) that are located manometer (10) and keep away from LNG gas cylinder (8) one side on connecting line (9) for make pressure reduce the pressure of gas tightness test regulation, this pressure can come out through manometer (10) direct observation, thereby realized gas tightness test's regulation pressure.
2. An LNG hermetic laboratory bench according to claim 1 characterized in that said pressure regulator (11) is a pressure reducing valve and said external gas source is a nitrogen gas cylinder.
3. An LNG airtight laboratory bench apparatus according to claim 2, the clamping mechanism comprises a clamping plate (16), a connecting plate (4) driving the clamping plate (16) to move, a stress turnover plate (15) driving the connecting plate (4) to turn over, a U-shaped fixing frame (2), a rotating shaft (13) and a connecting block (12), the number of the U-shaped fixing frames (2) is four, the U-shaped fixing frames are respectively positioned on the front side, the rear side, the left side and the right side and are distributed in a rectangular shape, two ends of the rotating shaft (13) are respectively movably connected with two inner side walls (3) of the U-shaped fixing frame (2), the connecting block (12) is sleeved on the rotating shaft (13), the stress turnover plate (15) is fixedly connected with one side of the connecting block (12) close to the LNG gas cylinder (8), the connecting plate (4) is fixedly connected with the upper surface of the stressed turnover plate (15), and the clamping plate (16) is arranged on the connecting plate (4).
4. The LNG airtight experiment table device of claim 3, wherein the forced turnover plate (15) is composed of a vertical plate and a tilted plate which are connected up and down, the vertical plate is connected with the connecting block (12), and the tilted plate is tilted towards the LNG cylinder (8) and the tilting angle is an acute angle.
5. An LNG airtight experiment table apparatus according to claim 4, wherein the clamping plates (16) on the front and back sides are higher than the clamping plates (16) on the left and right sides, one side of the clamping plates (16) close to the LNG cylinder (8) is concave with an inner concave portion (17) towards the side far away from the LNG cylinder (8), and the inner concave portion (17) is arc-shaped.
6. The LNG airtight experiment table device according to any one of claims 3 to 5, wherein an adjusting mechanism is arranged between the clamping plate (16) and the connecting plate (4), the adjusting mechanism comprises a threaded rod (5), a sliding block (7) and a sliding rail (6) for limiting the clamping plate (16) to move linearly, the sliding rail (6) is arranged at the top of the connecting plate (4), the sliding block (7) is connected with the sliding rail (6) in a sliding manner, the upper surface of the sliding block is fixedly connected with the clamping plate (16), one end of the threaded rod (5) is movably connected with the clamping plate (16) through a bearing, the other end of the threaded rod penetrates through and extends to one side of the connecting plate (4) far away from the LNG gas cylinder (8), and a threaded through hole in threaded connection with the threaded rod (5) is formed in the side surface of the connecting plate (4).
7. The LNG airtight experiment table device of claim 6, wherein the bottom plate (1) is provided with a reset mechanism, the reset mechanism comprises side walls (3) and reset springs (14), the number of the side walls (3) is four, the side walls (3) are all vertically connected with the top of the bottom plate (1), the four side walls (3) are respectively located on the front side, the rear side, the left side and the right side, the number of the reset springs (14) is four, one end of each reset spring (14) is fixedly connected with one side of each side wall (3) close to an LNG gas cylinder (8), and the other end of each reset spring is fixedly connected with one side of the stressed turnover plate (15) far away from the LNG gas cylinder (8).
8. The LNG airtight experiment table device of claim 7, wherein the side of the connecting plate (4) is provided with a threaded through hole in threaded connection with the threaded rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366077.0A CN113049198A (en) | 2021-04-06 | 2021-04-06 | Airtight laboratory bench device of LNG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366077.0A CN113049198A (en) | 2021-04-06 | 2021-04-06 | Airtight laboratory bench device of LNG |
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| Publication Number | Publication Date |
|---|---|
| CN113049198A true CN113049198A (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110366077.0A Pending CN113049198A (en) | 2021-04-06 | 2021-04-06 | Airtight laboratory bench device of LNG |
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| CN (1) | CN113049198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115718031A (en) * | 2022-11-11 | 2023-02-28 | 河南省锅炉压力容器安全检测研究院 | Safety performance testing device for hydrogen aluminum inner container carbon fiber winding gas cylinder for on-service vehicle |
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| TW451786U (en) * | 1999-08-14 | 2001-08-21 | Wu Shu Te | Fixture for clamping bolt joint element |
| CN205448583U (en) * | 2015-12-22 | 2016-08-10 | 长庆石油勘探局技术监测中心 | Carbon fiber gas cylinder water pressure auxiliary test device |
| CN209148232U (en) * | 2018-10-19 | 2019-07-23 | 广东省特种设备检测研究院东莞检测院 | A kind of low temperature cylinder tightness test device |
| CN210401074U (en) * | 2019-06-27 | 2020-04-24 | 江苏宝祥气体有限公司 | Gas cylinder detection device of convenient operation |
| CN211656678U (en) * | 2020-05-10 | 2020-10-09 | 上海创容电子有限公司 | Fixing device for assembling electronic components |
| CN212745987U (en) * | 2020-07-09 | 2021-03-19 | 芜湖中燃城市燃气发展有限公司 | Portable natural gas jar and mount thereof |
-
2021
- 2021-04-06 CN CN202110366077.0A patent/CN113049198A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW451786U (en) * | 1999-08-14 | 2001-08-21 | Wu Shu Te | Fixture for clamping bolt joint element |
| CN205448583U (en) * | 2015-12-22 | 2016-08-10 | 长庆石油勘探局技术监测中心 | Carbon fiber gas cylinder water pressure auxiliary test device |
| CN209148232U (en) * | 2018-10-19 | 2019-07-23 | 广东省特种设备检测研究院东莞检测院 | A kind of low temperature cylinder tightness test device |
| CN210401074U (en) * | 2019-06-27 | 2020-04-24 | 江苏宝祥气体有限公司 | Gas cylinder detection device of convenient operation |
| CN211656678U (en) * | 2020-05-10 | 2020-10-09 | 上海创容电子有限公司 | Fixing device for assembling electronic components |
| CN212745987U (en) * | 2020-07-09 | 2021-03-19 | 芜湖中燃城市燃气发展有限公司 | Portable natural gas jar and mount thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115718031A (en) * | 2022-11-11 | 2023-02-28 | 河南省锅炉压力容器安全检测研究院 | Safety performance testing device for hydrogen aluminum inner container carbon fiber winding gas cylinder for on-service vehicle |
| CN115718031B (en) * | 2022-11-11 | 2023-10-10 | 河南省锅炉压力容器安全检测研究院 | Hydrogen aluminum inner container carbon fiber winding gas cylinder safety performance inspection device for in-service vehicle |
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