CN114509223A - Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings - Google Patents
Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings Download PDFInfo
- Publication number
- CN114509223A CN114509223A CN202111641871.8A CN202111641871A CN114509223A CN 114509223 A CN114509223 A CN 114509223A CN 202111641871 A CN202111641871 A CN 202111641871A CN 114509223 A CN114509223 A CN 114509223A
- Authority
- CN
- China
- Prior art keywords
- water
- guide plate
- water guide
- vacuum detection
- bolt
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000003466 welding Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 229920000742 Cotton Polymers 0.000 claims abstract description 15
- 238000005192 partition Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 description 8
- 239000012774 insulation material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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
- G01M3/32—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
- G01M3/34—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 testing the possibility of maintaining the vacuum in containers, e.g. in can-testing machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/221—Welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/23—Manufacturing of particular parts or at special locations
- F17C2209/238—Filling of insulants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
Abstract
The invention discloses a vacuum detection waterproof device applied to welding seams of wallboards in LNG tanks, which comprises a permanent magnet sucker, a water guide plate and an adjusting assembly, wherein the adjusting assembly comprises an adjusting part and a sliding block, the adjusting part is provided with a sliding chute, the sliding block can be fixed on the adjusting part through bolts and nuts and can move along the sliding chute, and water-absorbing cotton is arranged at a water outlet of the water guide plate.
Description
Technical Field
The invention relates to the technical field of ocean engineering waterproofing, in particular to a vacuum detection waterproof device applied to welding seams of inner wall plates of LNG tanks.
Background
In the LNG storage tank construction process, after the welding of jar inner wall board is accomplished, in order to guarantee pressure vessel's gas tightness, often need carry out vacuum test to its welding seam. The vacuum detection is long in time consumption, and often works simultaneously with the laying of the cold insulation material, and even after the cold insulation material in the edge area of the storage tank is laid, the vacuum detection is still carried out. At this time, the waste water generated by vacuum detection is left from high along the wall plate to wet the cold insulation material, so that the performance of the cold insulation material (glass bricks, glass wool and the like) is greatly reduced.
The method commonly used on site is to place a quilt on the lower part of a wall plate for vacuum and the upper part of a cold insulation material, but the waterproof effect cannot meet the requirement due to the common water absorption of the quilt and the insufficient close fit with the wall plate. The other method is to make a water container by tinfoil sheets and stick the tinfoil sheets on the wall plates by adhesive tapes, which can effectively prevent the wastewater from flowing down, but the 'water container' needs to be replaced and pasted again when the wall plates are vacuumized, thereby wasting materials and delaying time.
Disclosure of Invention
The invention provides a vacuum detection waterproof device applied to welding lines of wallboards in LNG tanks, which can solve the problem of soaking glass wool and glass bricks during simultaneous construction of vacuum and cold insulation of welding lines of wallboards in tanks, and also solves the problems of poor implementation effect and low efficiency of the conventional waterproof method.
The invention provides a vacuum detection waterproof device applied to welding seams of wall plates in an LNG tank, which comprises a water guide plate, a permanent magnet sucker and an adjusting component, wherein the water guide plate is arranged on the wall plates;
the water guide plate is provided with a water passing channel, one side surface of the water guide plate is a vertical surface, a water inlet of the water passing channel is positioned on the vertical surface, absorbent cotton is arranged at the water inlet, and a water outlet of the water passing channel extends out of the permanent magnet sucker;
the adjusting assembly comprises a sliding block arranged at the bottom of the water guide plate and an adjusting part arranged at the top of the permanent magnet sucker, a bolt and a nut are arranged on the sliding block, a sliding groove is formed in the adjusting part, and the sliding block can move along the sliding groove and is fixed on the adjusting part through the bolt and the nut.
Furthermore, a water baffle is arranged on the water guide plate, and the water baffle is arranged on two sides of the water guide plate and surrounds the water guide plate to form the water passing channel.
Furthermore, a partition board is arranged on the water baffle, and the upper end of the water guide board is lower than the upper end of the partition board.
Furthermore, water absorbent cotton is arranged between the water guide plate and the baffle.
Furthermore, the sliding block is provided with a fixing hole, the bolt penetrates from the fixing hole, two ends of the bolt extend out of the sliding groove, and the bolt is locked on the adjusting portion by the nut.
Furthermore, a gasket is arranged between the bolt and the nut.
Furthermore, a guide plate is arranged at the water outlet of the water guide plate.
The invention has the technical effects that: the water guide plate comprises a permanent magnet sucker, a water guide plate and an adjusting assembly, wherein the adjusting assembly comprises an adjusting part provided with a sliding groove and a sliding block, the sliding block can fix the adjusting part through a bolt and a nut and can move along the sliding groove, and water absorbent cotton is arranged at a water outlet of the water guide plate.
Drawings
Fig. 1 is a schematic perspective view of a waterproof device for vacuum detection of welding seams of inner wall plates of an LNG tank according to an embodiment of the present invention.
Fig. 2 is a partial sectional view of a vacuum detection waterproof device applied to welding seams of inner wall plates of an LNG tank according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a water guide plate applied to a welding seam vacuum detection waterproof device of an inner wall plate of an LNG tank according to an embodiment of the present invention.
Fig. 4 is a partial sectional view of a permanent magnet chuck applied to a waterproof device for vacuum detection of welding seams of an inner wall plate of an LNG tank according to an embodiment of the present invention.
Fig. 5 is a schematic perspective view of a vacuum detection waterproof device applied to welding seams of inner wall plates of an LNG tank in use according to an embodiment of the present invention.
Wherein, 1 absorbs water cotton, 2 nuts, 3 permanent magnet sucking discs, 4 water guide plates, 5 bolts, 6 gaskets, 7 clapboards, 8 water baffle plates, 9 fixing holes, 10 sliding blocks, 11 adjusting parts, 12 and sliding chutes.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
The embodiment of the invention provides a vacuum detection waterproof device applied to welding seams of wallboards in LNG tanks, which is shown in the attached drawings 1-5 and comprises a permanent magnet sucker 3, a water guide plate 4 and an adjusting assembly, wherein the permanent magnet sucker 3 is adsorbed on the wallboards, the vertical surface of the water guide plate 4 is attached to a longitudinal embedded part through the adjusting assembly, and the water guide plate 4 is fixed on an adjusting part 11 through a nut 2 and a bolt 5, so that the wallboards can be prevented from being waterproofed.
Specifically, the water guide plate 4 comprises a vertical section and a horizontal section, the vertical section and the horizontal section are connected through an arc section, and the vertical surface is the outer side surface of the vertical section. The edges of the two sides of the water guide plate 4 are respectively provided with a water baffle 8, and the two water baffles 8 and the water guide plate 4 surround a water passing channel. The water baffle 8 on the upper part of the vertical section is provided with a baffle 7, and the upper end of the vertical section is lower than the upper end of the baffle 7, so a gap is formed between the baffle and the water guide plate 4 of the vertical section, the gap is the water inlet of the water channel, the water inlet is provided with the water absorption cotton 1 between the baffle 7 and the water guide plate 4, and the water absorption cotton 1 completely blocks the water inlet. The permanent magnet sucker 3 extends out of the water outlet of the water passage, and a guide plate is arranged at the water outlet. The absorbent cotton 1 has the function of absorbing water and guiding water, soapy water flowing down on the upper side of the wall plate due to vacuum is absorbed by the absorbent cotton 1, and then excessive water flows down along the slope of the water guide plate 4.
Specifically, the permanent magnet is cuboid, has great magnetism, can pass through magnetic force and fix on the wallboard.
Specifically, the adjusting assembly comprises an adjusting part 11 and a sliding block 10 arranged at the bottom of the water guide plate, the adjusting part 11 is fixed at the top of the permanent magnet sucker 3, the adjusting part 11 is composed of four plates which are connected end to end, the four plates surround to form an accommodating space, two opposite plates are provided with sliding grooves 12, the direction of each sliding groove 12 is consistent with the direction of the horizontal section of the water guide plate 4, and the sliding block 10 is arranged in the accommodating space.
Further, a fixing hole 9 is formed in the sliding block 10, the bolt 5 penetrates through the fixing hole 9, two ends of the bolt penetrate through the sliding grooves 12 and are located outside the adjusting portion 11, and the sliding block 10 is fixed on the adjusting portion 11 through the nut 2.
The smooth section of 5 intermediate positions of bolt, the afterbody is the screw thread end, and head and screw thread end are located the outside of regulating part 11, and nut 2 is located the screw thread section, locks regulating part 11 and slider 10, dismantles nut 2, can make bolt 5 remove in spout 12, and then adjusts the position of water deflector 4, makes it laminate the wallboard as far as possible.
The water guide plate 4 can be replaced according to the requirements of practical application, the requirements of different sizes can be met, and the size of the sliding block 10 at the lower part of the water guide plate is fixed.
When the invention is used, the method comprises the following steps: taking a piece of water absorption cotton 1, plugging the water absorption cotton into a water inlet surrounded by a partition plate 7 and a water baffle plate 8, wherein the water absorption cotton 1 is required to be higher than the topmost part of a water guide plate 4 after being plugged, as shown in figure 2, so as to ensure the water absorption guiding function of the water absorption cotton 1;
adsorbing a permanent magnet sucker 3 on the wall plates, adjusting the positions of the water guide plates 4 back and forth to enable the permanent magnet sucker to be attached to a longitudinal embedded part between the wall plates, and then screwing a fixing screw to fix the permanent magnet sucker with a nut 2 and a gasket 6 as shown in figure 5;
when the vacuum detection of the welding line of the wall plate on the upper side is finished and the welding line of the other wall plate is subjected to vacuum detection, the permanent magnet sucker 3 is detached, the proper water guide plate 4 is selected again, and the steps are repeated.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (7)
1. The utility model provides a be applied to wallboard welding seam vacuum detection watertight fittings in LNG jar which characterized in that: the device comprises a water guide plate, a permanent magnet sucker and an adjusting component;
the water guide plate is provided with a water passing channel, one side surface of the water guide plate is a vertical surface, a water inlet of the water passing channel is positioned on the vertical surface, absorbent cotton is arranged at the water inlet, and a water outlet of the water passing channel extends out of the permanent magnet sucker;
the adjusting assembly comprises a sliding block arranged at the bottom of the water guide plate and an adjusting part arranged at the top of the permanent magnet sucker, a bolt and a nut are arranged on the sliding block, a sliding groove is formed in the adjusting part, and the sliding block can move along the sliding groove and is fixed on the adjusting part through the bolt and the nut.
2. The vacuum detection waterproof device applied to welding seams of inner wall plates of LNG tanks, according to claim 1, is characterized in that: the water guide plate is provided with a water baffle plate, and the water baffle plate is arranged on two sides of the water guide plate and surrounds the water guide plate to form the water passing channel.
3. The vacuum detection waterproof device applied to welding seams of inner wall plates of LNG tanks, according to claim 2, is characterized in that: the water baffle is provided with a partition plate, and the upper end of the water guide plate is lower than the upper end of the partition plate.
4. The vacuum detection waterproof device applied to welding seams of inner wall plates of LNG tanks, according to claim 3, is characterized in that: and water absorbent cotton is arranged between the water guide plate and the baffle.
5. The vacuum detection waterproof device applied to welding seams of inner wall plates of LNG tanks, according to claim 1, is characterized in that: the sliding block is provided with a fixing hole, the bolt penetrates into the fixing hole, two ends of the bolt extend out of the sliding groove, and the bolt is locked on the adjusting portion through the nut.
6. The vacuum detection waterproof device applied to welding seams of inner wall plates of LNG tanks, according to claim 5, is characterized in that: and a gasket is arranged between the bolt and the nut.
7. The vacuum detection waterproof device applied to welding seams of inner wall plates of LNG tanks, according to claim 1, is characterized in that: and a guide plate is arranged at the water outlet of the water guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641871.8A CN114509223A (en) | 2021-12-29 | 2021-12-29 | Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641871.8A CN114509223A (en) | 2021-12-29 | 2021-12-29 | Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114509223A true CN114509223A (en) | 2022-05-17 |
Family
ID=81548170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111641871.8A Pending CN114509223A (en) | 2021-12-29 | 2021-12-29 | Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114509223A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1022688A (en) * | 1962-11-02 | 1966-03-16 | Alumiseal Corp | Insulating refrigeration tank structure |
| AU7263187A (en) * | 1986-05-09 | 1987-11-12 | Fujikura Ltd. | Water penetration-detecting apparatus and optical fiber cable using same |
| TWM461688U (en) * | 2013-03-25 | 2013-09-11 | Ke-Cheng Lo | Water guide plate, water guide component and assembled water guide plate |
| US20160083957A1 (en) * | 2013-06-27 | 2016-03-24 | Ihi Corporation | Method for constructing cylindrical tank |
| CN106413312A (en) * | 2016-10-26 | 2017-02-15 | 中山市蓝水能源科技发展有限公司 | Waterproof LNG ship fuel control cabinet |
| CN207356196U (en) * | 2017-03-10 | 2018-05-15 | 潘明慧 | Sickbed patients hair washing hat |
| CN207831690U (en) * | 2018-01-09 | 2018-09-07 | 中山市恒乐电器有限公司 | A kind of outer cover of water heater of waterproof |
| CN110748359A (en) * | 2019-12-06 | 2020-02-04 | 中铁十八局集团建筑安装工程有限公司 | Tunnel water-proof and drainage construction process |
| CN210474174U (en) * | 2019-08-29 | 2020-05-08 | 汪淳 | Paper shredder for auditing confidential documents |
| CN210571181U (en) * | 2019-06-05 | 2020-05-19 | 山东鉴玺工程质量检测有限公司 | Waterproof detection device of engineering building material |
| CN210803175U (en) * | 2019-08-06 | 2020-06-19 | 四川红虎新型建材有限公司 | Vacuum water absorption instrument for waterproof coiled material glazed brick |
| CN211192053U (en) * | 2019-12-27 | 2020-08-07 | 佛山迪派斯智能机器有限公司 | Novel lathe protection device |
| CN212721941U (en) * | 2020-07-28 | 2021-03-16 | 郭雅迪 | Welding seam vacuum leakage testing device |
| CN214502825U (en) * | 2021-04-09 | 2021-10-26 | 北京洋琳环境科技有限公司 | Water leakage detection alarm device for machine room |
| CN113670641A (en) * | 2021-08-14 | 2021-11-19 | 中机锻压江苏股份有限公司 | Underwater test platform for hydraulic pile hammer |
| CN113739999A (en) * | 2020-05-29 | 2021-12-03 | 中核武汉核电运行技术股份有限公司 | Vacuum leakage inspection device based on differential pressure method |
-
2021
- 2021-12-29 CN CN202111641871.8A patent/CN114509223A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1022688A (en) * | 1962-11-02 | 1966-03-16 | Alumiseal Corp | Insulating refrigeration tank structure |
| AU7263187A (en) * | 1986-05-09 | 1987-11-12 | Fujikura Ltd. | Water penetration-detecting apparatus and optical fiber cable using same |
| TWM461688U (en) * | 2013-03-25 | 2013-09-11 | Ke-Cheng Lo | Water guide plate, water guide component and assembled water guide plate |
| US20160083957A1 (en) * | 2013-06-27 | 2016-03-24 | Ihi Corporation | Method for constructing cylindrical tank |
| CN106413312A (en) * | 2016-10-26 | 2017-02-15 | 中山市蓝水能源科技发展有限公司 | Waterproof LNG ship fuel control cabinet |
| CN207356196U (en) * | 2017-03-10 | 2018-05-15 | 潘明慧 | Sickbed patients hair washing hat |
| CN207831690U (en) * | 2018-01-09 | 2018-09-07 | 中山市恒乐电器有限公司 | A kind of outer cover of water heater of waterproof |
| CN210571181U (en) * | 2019-06-05 | 2020-05-19 | 山东鉴玺工程质量检测有限公司 | Waterproof detection device of engineering building material |
| CN210803175U (en) * | 2019-08-06 | 2020-06-19 | 四川红虎新型建材有限公司 | Vacuum water absorption instrument for waterproof coiled material glazed brick |
| CN210474174U (en) * | 2019-08-29 | 2020-05-08 | 汪淳 | Paper shredder for auditing confidential documents |
| CN110748359A (en) * | 2019-12-06 | 2020-02-04 | 中铁十八局集团建筑安装工程有限公司 | Tunnel water-proof and drainage construction process |
| CN211192053U (en) * | 2019-12-27 | 2020-08-07 | 佛山迪派斯智能机器有限公司 | Novel lathe protection device |
| CN113739999A (en) * | 2020-05-29 | 2021-12-03 | 中核武汉核电运行技术股份有限公司 | Vacuum leakage inspection device based on differential pressure method |
| CN212721941U (en) * | 2020-07-28 | 2021-03-16 | 郭雅迪 | Welding seam vacuum leakage testing device |
| CN214502825U (en) * | 2021-04-09 | 2021-10-26 | 北京洋琳环境科技有限公司 | Water leakage detection alarm device for machine room |
| CN113670641A (en) * | 2021-08-14 | 2021-11-19 | 中机锻压江苏股份有限公司 | Underwater test platform for hydraulic pile hammer |
Non-Patent Citations (3)
| Title |
|---|
| 刘吉飞;程久欢;祝晓丹;叶忠志;: "LNG储罐水压试验时内罐防腐控制探讨", 石油工程建设, no. 06, 17 December 2009 (2009-12-17), pages 48 - 50 * |
| 樊宏伟;陈成建;: "全容式LNG储罐罐内保冷工程防水防潮系统应用", 石油化工建设, no. 06, 20 December 2019 (2019-12-20), pages 50 - 54 * |
| 田鹏飞;: "石油化工企业消防水罐设计探讨", 石油化工安全环保技术, no. 04, 20 August 2015 (2015-08-20), pages 5 - 6 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104727333B (en) | A kind of dock gate caisset of two-way water stop | |
| CN114509223A (en) | Be applied to LNG tank inner wall panel welding seam vacuum detection watertight fittings | |
| CN107253511A (en) | A kind of ship automatic water supplement type water seal scupper | |
| CN207419542U (en) | A kind of underground space roof deformation stitches waterproof construction | |
| WO2020191998A1 (en) | Magnetically guided bi-component adhesive pipeline leakage sealing device | |
| CN101818831B (en) | Mounting method for adjustable gas-pipe out-of-wall box of gas stove | |
| CN110905138A (en) | Disjunctor is stifled to draw formula waterproof system | |
| CN216587065U (en) | Building floor movement joint waterproof construction | |
| CN211621432U (en) | Connecting assembly for grouting opening of steel pipe in tunnel | |
| CN204199243U (en) | A kind of portable small-sized gate | |
| CN206036410U (en) | Pre -buried leak protection water is direct | |
| CN218883172U (en) | Pipe jacking water stopping device | |
| CN207131026U (en) | A kind of Antiskid ceramic tile being easily installed | |
| CN214999995U (en) | Dust removal pipeline inside lining adsorption equipment | |
| CN110905133A (en) | Partition blocking and guiding type waterproof system | |
| CN206017753U (en) | A kind of reinforced gate valve | |
| CN217630913U (en) | Roofing seam plugging device | |
| CN220816966U (en) | Water retaining device for water supply pipeline | |
| CN207540736U (en) | A kind of tool structure for promoting insulator air-leakage test performance | |
| CN212338439U (en) | Anti-seepage device for water supply and drainage pipes in building engineering | |
| CN202884368U (en) | High pressure and water hammer resistance rapid pipeline leak stopper | |
| CN2564836Y (en) | Composite leak stopper for pipeline | |
| CN215233202U (en) | Natural gas dewatering device | |
| CN203639234U (en) | Organic anaerobic reactor | |
| CN213117889U (en) | Embedded connecting piece of anticorrosive pipeline |
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 |