CN116754152A - Stainless steel pipe welding seam pressure detector - Google Patents
Stainless steel pipe welding seam pressure detector Download PDFInfo
- Publication number
- CN116754152A CN116754152A CN202310745885.7A CN202310745885A CN116754152A CN 116754152 A CN116754152 A CN 116754152A CN 202310745885 A CN202310745885 A CN 202310745885A CN 116754152 A CN116754152 A CN 116754152A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel pipe
- pressurizing shell
- pressurizing
- pressure
- 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
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 137
- 239000010935 stainless steel Substances 0.000 title claims abstract description 137
- 238000003466 welding Methods 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000007789 sealing Methods 0.000 claims description 46
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000004519 grease Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 16
- 230000007547 defect Effects 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 12
- 238000001914 filtration Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- G01M3/26—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
- G01M3/2884—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 welds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the technical field of weld joint detection, in particular to a stainless steel pipe weld joint pressure detector, which comprises a pressurizing shell, a high-pressure water pump and a pressure sensor, wherein the pressurizing shell is arranged on the stainless steel pipe; injecting clear water into the interior of the pressurizing shell through the high-pressure water pump, simulating the external pressure born by the pipeline, monitoring the pressure change in the interior of the pressurizing shell in real time through the pressure sensor, continuously detecting the pressure change in the interior of the pressurizing shell for a certain time, and if the pressure change is smaller than a set value in the set time, indicating that the quality of the welding seam of the stainless steel pipe is qualified, otherwise, indicating that the quality of the welding seam of the stainless steel pipe is unqualified; the pressure applied to the outside of the pipeline in actual use is simulated in a pressurizing detection mode, so that potential welding defects and welding defects in welding seams of the stainless steel pipe are exposed due to the pressure, potential risks can be eliminated, and the safety of transportation of the whole pipeline is improved.
Description
Technical Field
The invention belongs to the technical field of weld joint detection, and particularly relates to a stainless steel pipe weld joint pressure detector.
Background
The pipeline transportation is a transportation mode for transporting liquid and gas by using a pipeline as a transportation means, has the advantages of large transportation quantity, continuous and stable transportation, small weather influence, safe transportation and low transportation cost, and is widely used in long-distance transportation of petroleum and natural gas; stainless steel pipes are widely used in pipeline transportation because they are not prone to rust, corrosion resistant and high in strength.
Pipelines transported by pipelines are mostly buried underground deeply and even penetrate through the water bottom and the sea bottom; in a complex field environment, the stainless steel pipe transported by the pipeline still can be damaged and cracked; the pipeline at the broken part is dug out and the damaged part is welded and maintained.
After welding maintenance is finished, quality detection is required to be carried out on the welding seam of the stainless steel pipe, and the influence of the conveying pressure in the pipeline on the welding seam is usually only detected when the pipeline is conveyed; in the process of pipeline transportation, the pipeline can also receive external pressure, such as extrusion force of surrounding soil when the pipeline is deeply buried underground, water pressure of the water bottom and the seabed, and the like; external pressure can act on the weld, amplifying the potential hazards present in the weld, such that progressive cracking of the weld results in secondary leakage of the pipe.
Therefore, the invention provides a stainless steel pipe weld pressure detector.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a stainless steel pipe welding seam pressure detector, which comprises a pressurizing shell arranged on the outer side of a welding seam of a stainless steel pipe; the opening of the pressurizing shell can be attached to the outer wall of the stainless steel tube; a fastening unit is arranged on the pressurizing shell; the fastening unit is sleeved on the outer side of the stainless steel pipe; the bottom of the pressurizing shell is fixedly connected with a high-pressure water pump; the water inlet end pipeline of the high-pressure water pump is communicated with a water source; the water outlet end pipeline of the high-pressure water pump is communicated with the inside of the pressurizing shell; the top thread of the pressurizing shell is provided with a pressure sensor, and a pressure interface of the pressure sensor is communicated with the inside of the pressurizing shell; injecting clear water into the interior of the pressurizing shell through the high-pressure water pump, simulating the external pressure born by the pipeline, monitoring the pressure change in the interior of the pressurizing shell in real time through the pressure sensor, continuously detecting the pressure change in the interior of the pressurizing shell for a certain time, and if the pressure change is smaller than a set value in the set time, indicating that the quality of the welding seam of the stainless steel pipe is qualified, otherwise, indicating that the quality of the welding seam of the stainless steel pipe is unqualified; the pressure applied to the outside of the pipeline in actual use is simulated in a pressurizing detection mode, so that potential welding defects and welding defects in welding seams of the stainless steel pipe are exposed due to the pressure, potential risks can be eliminated, and the safety of transportation of the whole pipeline is improved.
Preferably, the opening of the pressurizing shell is fixedly connected with a rubber sealing ring; the rubber sealing ring is attached to the outer wall of the stainless steel tube; a cavity is formed in the rubber sealing ring; a concave part is arranged on one side of the rubber sealing ring, which is far away from the pressurizing shell; an air pump is fixedly connected to the top surface of the pressurizing shell; the air outlet end pipeline of the air pump is communicated with the cavity inside the rubber sealing ring; therefore, the rubber sealing ring can prevent water in the pressurized shell from leaking, and the accuracy of detecting the welding seam of the stainless steel tube is improved.
Preferably, the bottom of the pressurizing shell is provided with a water hole; the bottom thread of the water hole is provided with a three-way valve; one end of the three-way valve is communicated with the water inlet end of the high-pressure water pump; a filter plug is arranged on the top thread of the water hole; the high-pressure water in the pressurizing shell is discharged downwards through the three-way valve, so that the splashing of water flow at the moment of opening the pressurizing shell is reduced, and the danger of operation of staff is reduced; the filtering plug is used for filtering and blocking, so that the probability of blocking caused by impurity sludge entering the three-way valve is reduced.
Preferably, grid-shaped reinforcing ribs are fixedly connected on four sides of the interior of the pressurizing shell; two adjacent reinforcing ribs are fixedly connected with each other; the integral strength of the pressurizing shell is improved through the arranged reinforcing ribs; impurity silt deposits to the latticed inside of strengthening rib to reduced impurity silt and moved along with clear water at the pressurization shell, then reduced impurity silt and removed the probability of filtering stopper department, reduced the filtration pressure of filtering stopper.
Preferably, the fastening unit comprises connecting plates arranged on both sides of the top and the bottom of one surface of the pressurizing shell far away from the stainless steel pipe; one surface of the connecting plate, which is far away from one end of the pressurizing shell and is close to the stainless steel tube, is fixedly connected with a connecting rod; a clamping plate is arranged on one side of the stainless steel tube, which is far away from the pressurizing shell; the connecting rod slides through the clamping plate; one end of each connecting rod, which is far away from the pressurizing shell, is provided with a fixing plate; the middle thread of the fixing plate is provided with a screw rod, and the screw rod penetrates through the fixing plate; one end of the screw close to the clamping plate is rotationally connected with the middle part of the clamping plate; one surface of the clamping plate, which is close to the stainless steel pipe, is fixedly connected with a rubber cushion block; the rubber cushion block can be attached to the outer wall of the stainless steel pipe; thereby firmly fixing the pressurizing shell on the outer side of the stainless steel pipe, and then completing the fixing work of the pressurizing shell.
Preferably, inserts are fixedly connected to the top and the two sides of the bottom of one surface of the pressurizing shell, which is far away from the stainless steel pipe; a chute is formed in the middle of the connecting plate; the insert is fixedly connected with the sliding groove of the connecting plate through bolts; vertical grooves are formed in the two sides of the top and the bottom of the clamping plate and the fixed plate; a sliding column is slidably arranged in the vertical groove of the fixed plate; the sliding column is fixedly connected with the end part of the connecting rod; a sliding sleeve is slidably arranged in the vertical groove of the clamping plate; the sliding sleeve is sleeved on the outer ring of the connecting rod; thereby being convenient for carrying out pressure detection on welding seams of stainless steel pipes with different diameters, and further improving the application range of the stainless steel pipe welding seam pressure detector.
Preferably, the outer rings of the two connecting rods at the bottom are sleeved with a first spring; the first spring is positioned between the connecting plate and the clamping plate; through the elasticity of the spring I for when opening the pressurization shell, promote pressurization shell and stainless steel pipe and separate, improved the convenience of staff's operation.
Preferably, the outer rings of the two connecting rods at the top are sleeved with a pair of sleeve seats; the bottoms of the two ends of the sleeve seat are bolted with idler wheels; the outer ring of the hub of the roller is made of soft rubber; the bottom of the roller is in sliding fit with the top wall of the stainless steel tube; therefore, the whole stainless steel pipe welding line pressure detector is hung on the stainless steel pipe, and the moving operation of workers is facilitated.
Preferably, the inner ring of the sleeve seat is provided with a linear bearing; the inner wall of the linear bearing is in sliding fit with the outer wall of the connecting rod; a second spring is fixedly connected between each pair of sleeve seats; the second spring is sleeved on the outer ring of the connecting rod; the sleeve seats at the two sides are pulled to be close to each other through the elasticity of the second spring, so that the rollers at the two sides are firmly in extrusion contact with the outer wall of the stainless steel tube, and the stability of the stainless steel tube weld joint pressure detector is improved.
Preferably, an oil tank is fixedly connected to one side of the pressurizing shell; a pressurizing pump is arranged at the top of the oil tank; sealing grease is filled in the oil tank; the bottom end pipeline of the oil tank is communicated with a concave part of one side of the rubber sealing ring, which is far away from the pressurizing shell; sealing grease in the oil tank is pressurized and injected into the concave part of the rubber sealing ring by the pressurizing pump, and a fine gap between the rubber sealing ring and the outer wall of the stainless steel pipe is filled and blocked, so that the probability of high-pressure water in the pressurizing shell penetrating between the rubber sealing ring and the outer wall of the stainless steel pipe is reduced.
The beneficial effects of the invention are as follows:
1. the invention relates to a stainless steel pipe weld pressure detector, which is characterized by comprising a pressurizing shell, a high-pressure water pump and a pressure sensor; after the welding maintenance of the damaged part of the stainless steel pipe is finished, fixing the pressurizing shell to the outer side of the stainless steel pipe by using a fastening unit, covering a welding seam of the stainless steel pipe in the pressurizing shell, injecting clean water into the pressurizing shell by using a high-pressure water pump, simulating the external pressure born by a pipeline, monitoring the pressure change in the pressurizing shell in real time by using a pressure sensor, continuously detecting the pressure change in the pressurizing shell for a certain time, and if the pressure change is smaller than a set value in the set time, indicating that the welding seam quality of the stainless steel pipe is qualified, otherwise, indicating that the welding seam quality of the stainless steel pipe is unqualified; the pressure applied to the outside of the pipeline in actual use is simulated in a pressurizing detection mode, so that potential welding defects and welding defects in welding seams of the stainless steel pipe are exposed due to the pressure, potential risks can be eliminated, and the safety of transportation of the whole pipeline is improved.
2. The invention relates to a stainless steel pipe weld pressure detector, which is characterized in that a rubber sealing ring and an air pump are arranged; the air pump injects air into the inner cavity of the rubber sealing ring, so that the rubber sealing ring expands and is tightly attached to the outer wall of the stainless steel pipe; and when the internal water pressure of the pressurizing shell is increased, the air pressure of the cavity in the rubber sealing ring is increased through the air pump, so that the rubber sealing ring can prevent water in the pressurizing shell from leaking, and the accuracy of detecting the welding seam of the stainless steel tube is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a first perspective view of a first embodiment of the present invention;
FIG. 2 is a second perspective view of a first embodiment of the invention;
FIG. 3 is a perspective view of a pressurized housing in accordance with a first embodiment of the present invention;
FIG. 4 is an exploded view of a pressurized housing in accordance with a first embodiment of the present invention;
FIG. 5 is a cross-sectional view of a pressurized housing in accordance with a first embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
fig. 7 is a perspective view of a fastening unit in accordance with the first embodiment of the present invention;
FIG. 8 is an exploded view of a fastening unit in accordance with the first embodiment of the present invention;
FIG. 9 is a perspective view of a socket in accordance with one embodiment of the present invention;
FIG. 10 is an exploded view of a socket in accordance with one embodiment of the present invention;
FIG. 11 is a perspective view of a second embodiment of the present invention;
in the figure: 1. a pressurized housing; 2. a high pressure water pump; 3. a pressure sensor; 4. a rubber seal ring; 5. an air pump; 6. a water hole; 7. a three-way valve; 8. a filter plug; 9. reinforcing ribs; 10. a connecting plate; 11. a connecting rod; 12. a clamping plate; 13. a fixing plate; 14. a screw; 15. a rubber cushion block; 16. an insert; 17. a chute; 18. a spool; 19. a sliding sleeve; 20. a first spring; 21. a sleeve seat; 22. a roller; 23. a linear bearing; 24. a second spring; 25. an oil tank.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment one: as shown in fig. 1 to 2, a stainless steel pipe weld pressure detector according to an embodiment of the present invention includes a pressurized housing 1 disposed outside a weld of a stainless steel pipe; the opening of the pressurizing shell 1 can be attached to the outer wall of the stainless steel tube; a fastening unit is arranged on the pressurizing shell 1; the fastening unit is sleeved on the outer side of the stainless steel pipe; the bottom of the pressurizing shell 1 is fixedly connected with a high-pressure water pump 2; the water inlet end pipeline of the high-pressure water pump 2 is communicated with a water source; the water outlet end pipeline of the high-pressure water pump 2 is communicated with the inside of the pressurizing shell 1; the top thread of the pressurizing shell 1 is provided with a pressure sensor 3, and a pressure interface of the pressure sensor 3 is communicated with the inside of the pressurizing shell 1; when the stainless steel pipe welding machine works, after the welding maintenance of the damaged part of the stainless steel pipe is completed, the pressurizing shell 1 is fixed to the outer side of the stainless steel pipe by using the fastening unit, a welding seam of the stainless steel pipe is covered in the pressurizing shell 1, clean water is injected into the pressurizing shell 1 by the high-pressure water pump 2, the external pressure born by a pipeline is simulated, the pressure change in the pressurizing shell 1 is monitored in real time by the pressure sensor 3, continuous detection work is carried out for a certain time, the pressure change in the pressurizing shell 1 is continuously detected, the pressure change is smaller than a set value in the set time, the quality of the welding seam of the stainless steel pipe is qualified, and otherwise, the quality of the welding seam of the stainless steel pipe is unqualified; the pressure applied to the outside of the pipeline in actual use is simulated in a pressurizing detection mode, so that potential welding defects and welding defects in welding seams of the stainless steel pipe are exposed due to the pressure, potential risks can be eliminated, and the safety of transportation of the whole pipeline is improved.
As shown in fig. 1 to 6, a rubber sealing ring 4 is fixedly connected at the opening of the pressurizing shell 1; the rubber sealing ring 4 is attached to the outer wall of the stainless steel pipe; a cavity is formed in the rubber sealing ring 4; a concave part is arranged on one side of the rubber sealing ring 4 far away from the pressurizing shell 1; the top surface of the pressurizing shell 1 is fixedly connected with an air pump 5; the air outlet end pipeline of the air pump 5 is communicated with the cavity inside the rubber sealing ring 4; when the stainless steel tube type air pump works, after the pressurizing shell 1 is fixed to the outer side of the stainless steel tube, the air pump 5 injects air into the inner cavity of the rubber sealing ring 4, so that the rubber sealing ring 4 expands, and the rubber sealing ring 4 is tightly attached to the outer wall of the stainless steel tube; and when the internal water pressure of the pressurizing shell 1 is increased, the air pressure of the cavity inside the rubber sealing ring 4 is increased through the air pump 5, so that the rubber sealing ring 4 blocks the water inside the pressurizing shell 1 from leaking, and the accuracy of detecting the welding seam of the stainless steel pipe is improved.
As shown in fig. 3 to 5, the bottom of the pressure housing 1 is provided with a water hole 6; the three-way valve 7 is arranged at the bottom thread of the water hole 6; one end of the three-way valve 7 is communicated with the water inlet end of the high-pressure water pump 2; a filter plug 8 is arranged on the top thread of the water hole 6; during the operation, when in pressurization detection, the three-way valve 7 is rotated, so that the high-pressure water pump 2 is communicated with the water hole 6 at the bottom of the pressurization shell 1, and the high-pressure water pump 2 injects clear water into the pressurization shell 1 through the three-way valve 7; after detection is completed, the three-way valve 7 is rotated, so that the water hole 6 at the bottom of the pressurizing shell 1 is communicated with the opening at the bottom of the three-way valve 7, high-pressure water in the pressurizing shell 1 is discharged downwards through the three-way valve 7, instantaneous water splashing when the pressurizing shell 1 is opened is reduced, and the danger of operation of staff is reduced; during the pressurization detection, the impurity silt is attached to the outer side of the stainless steel pipe and is carried into the pressurization shell 1 by water flow, and the impurity silt is filtered and blocked through the filter plug 8, so that the probability of blocking caused by the water impurity silt entering the three-way valve 7 is reduced.
As shown in fig. 3 to 5, the inside four sides of the pressure housing 1 are fixedly connected with grid-shaped reinforcing ribs 9; two adjacent reinforcing ribs 9 are fixedly connected with each other; the overall strength of the pressurized shell 1 is improved through the arranged reinforcing ribs 9; simultaneously, the stainless steel pipe outside adheres to impurity silt, is carried the inside of pressurization shell 1 by rivers, and impurity silt deposits at pressurization shell 1, and impurity silt deposits the latticed inside of strengthening rib 9 to reduced impurity silt and moved along with the clear water at pressurization shell 1, then reduced impurity silt and moved the probability of filter plug 8 department, reduced the filtration pressure of filter plug 8.
As shown in fig. 1, 2, 4, 7 and 8, the fastening unit comprises a connecting plate 10 arranged on both sides of the top and the bottom of one surface of the pressurizing shell 1 far away from the stainless steel pipe; a connecting rod 11 is fixedly connected to one surface, which is far away from one end of the pressurizing shell 1 and is close to the stainless steel tube, of the connecting plate 10; a clamping plate 12 is arranged on one side of the stainless steel tube away from the pressurizing shell 1; the connecting rod 11 slides through the clamping plate 12; one end of the plurality of connecting rods 11, which is far away from the pressurizing shell 1, is provided with a fixed plate 13; a screw 14 is arranged in the middle of the fixed plate 13 in a threaded manner, and the screw 14 penetrates through the fixed plate 13; one end of the screw 14, which is close to the clamping plate 12, is rotatably connected with the middle part of the clamping plate 12; a rubber cushion block 15 is fixedly connected to one surface of the clamping plate 12, which is close to the stainless steel pipe; the rubber cushion block 15 can be attached to the outer wall of the stainless steel pipe; when the stainless steel pipe welding device is in operation, after the welding maintenance of the damaged part of the stainless steel pipe is completed, the pressurizing shell 1 is moved to the outer side of the welding seam of the stainless steel pipe, the screw 14 is rotated, the clamping plate 12 is pushed to slide to the stainless steel pipe along the connecting rod 11, the rubber cushion block 15 is contacted with the outer wall of the stainless steel pipe, the pressurizing shell 1 is matched to clamp and fix the stainless steel pipe, the pressurizing shell 1 is firmly fixed to the outer side of the stainless steel pipe, and then the fixing work of the pressurizing shell 1 is completed.
As shown in fig. 1, 2, 4, 7 and 8, the top and bottom sides of one surface of the pressurizing shell 1 far away from the stainless steel pipe are fixedly connected with inserts 16; a chute 17 is formed in the middle of the connecting plate 10; the insert 16 is fixedly connected with the chute 17 of the connecting plate 10 through bolts; vertical grooves are formed in the two sides of the top and the bottom of the clamping plate 12 and the fixed plate 13; a sliding column 18 is slidably arranged in the vertical groove of the fixed plate 13; the sliding column 18 is fixedly connected with the end part of the connecting rod 11; a sliding sleeve 19 is slidably arranged in the vertical groove of the clamping plate 12; the sliding sleeve 19 is sleeved on the outer ring of the connecting rod 11; when the stainless steel pipe fixing device works, the fixedly connected position between the connecting plate 10 and the insert 16 is adjusted according to the diameter of the stainless steel pipe, so that the connecting rod 11 at the top and the connecting rod 11 at the bottom are respectively positioned at the top and the bottom of the stainless steel pipe; the connecting and fixing positions of the connecting rod 11 and the fixed plate 13 are controlled by sliding the sliding column 18 along the vertical groove of the fixed plate 13; the sliding sleeve 19 slides along the vertical groove of the clamping plate 12 to control the sliding position between the connecting rod 11 and the clamping plate 12; thereby being convenient for carrying out pressure detection on welding seams of stainless steel pipes with different diameters, and further improving the application range of the stainless steel pipe welding seam pressure detector.
As shown in fig. 1, 2, 7 and 8, a first spring 20 is sleeved on the outer ring of the bottom two connecting rods 11; the spring No. 20 is positioned between the connecting plate 10 and the clamping plate 12; through the elasticity of the spring No. 20, when the pressurizing shell 1 is opened, the pressurizing shell 1 is pushed to be separated from the stainless steel pipe, and the convenience of operation of staff is improved.
As shown in fig. 1, 2, 9 and 10, a pair of sockets 21 are sleeved on the outer ring of the top two connecting rods 11; the bottoms of the two ends of the sleeve seat 21 are bolted with idler wheels 22; the outer ring of the wheel hub of the roller 22 is made of soft rubber; the bottom of the roller 22 is in sliding fit with the top wall of the stainless steel tube; when the stainless steel pipe welding line pressure detector works, the two sleeve seats 21 on the outer ring of the connecting rod 11 at the top slide along the connecting rod 11, and the two sleeve seats 21 are controlled to be respectively positioned at two sides of the top of the stainless steel pipe, so that the rollers 22 at the two sides are respectively in sliding fit with the stainless steel pipe, and the whole stainless steel pipe welding line pressure detector is hung on the stainless steel pipe, so that the moving operation of workers is facilitated.
As shown in fig. 9 and 10, the inner ring of the sleeve seat 21 is provided with a linear bearing 23; the inner wall of the linear bearing 23 is in sliding fit with the outer wall of the connecting rod 11; a second spring 24 is fixedly connected between each pair of sleeve seats 21; the second spring 24 is sleeved on the outer ring of the connecting rod 11; the sleeve seats 21 on the two sides are pulled to be close to each other through the elasticity of the second spring 24, so that the rollers 22 on the two sides are firmly in extrusion contact with the outer wall of the stainless steel tube, and the stability of the stainless steel tube weld joint pressure detector is improved.
Embodiment two: as shown in fig. 11, in comparative example one, another embodiment of the present invention is: an oil tank 25 is fixedly connected to one side of the pressurizing shell 1; a pressurizing pump is arranged at the top of the oil tank 25; the oil tank 25 is filled with sealing grease; the bottom end pipeline of the oil tank 25 is communicated with a concave part of one side of the rubber sealing ring 4 far away from the pressurizing shell 1; in a field environment, the stainless steel tube can generate more fine scratches; the sealing grease in the oil tank 25 is pressurized and injected into the concave part of the rubber sealing ring 4 by the pressurizing pump, and the fine gap between the rubber sealing ring 4 and the outer wall of the stainless steel pipe is filled and blocked, so that the probability of high-pressure water in the pressurizing shell 1 penetrating from the rubber sealing ring 4 to the outer wall of the stainless steel pipe is reduced.
Working principle: after the welding maintenance of the damaged part of the stainless steel pipe is completed, cleaning the periphery of a welding line of the stainless steel pipe; according to the diameter of the stainless steel tube, the fixedly connected position between the connecting plate 10 and the insert 16 is adjusted, so that the connecting rod 11 at the top and the connecting rod 11 at the bottom are respectively positioned at the top and the bottom of the stainless steel tube; the connecting and fixing positions of the connecting rod 11 and the fixed plate 13 are controlled by sliding the sliding column 18 along the vertical groove of the fixed plate 13; the sliding sleeve 19 slides along the vertical groove of the clamping plate 12 to control the sliding position between the connecting rod 11 and the clamping plate 12;
the two sleeve seats 21 of the outer ring of the connecting rod 11 at the top slide along the connecting rod 11, the two sleeve seats 21 are controlled to be respectively positioned at two sides of the top of the stainless steel pipe, so that the rollers 22 at the two sides are respectively matched with the stainless steel pipe in a sliding way, and the stainless steel pipe weld pressure detector moves along the stainless steel pipe through the rolling of the rollers 22; the pressurizing shell 1 moves to the outer side of a welding line of the stainless steel pipe, the screw 14 is rotated, the clamping plate 12 is pushed to slide to the stainless steel pipe along the connecting rod 11, the rubber cushion block 15 is contacted with the outer wall of the stainless steel pipe, and the pressurizing shell 1 is matched for clamping and fixing the stainless steel pipe;
simultaneously, the air pump 5 injects air into the inner cavity of the rubber sealing ring 4, so that the rubber sealing ring 4 expands, and the rubber sealing ring 4 is tightly attached to the outer wall of the stainless steel tube; the sealing grease in the oil tank 25 is pressurized by the pressurizing pump and injected into the concave part of the rubber sealing ring 4, so that the fine gap between the rubber sealing ring 4 and the outer wall of the stainless steel pipe is filled and blocked; the three-way valve 7 is rotated, so that the high-pressure water pump 2 is communicated with the water hole 6 at the bottom of the pressurizing shell 1, and the high-pressure water pump 2 injects clean water into the pressurizing shell 1 through the three-way valve 7; injecting clear water into the interior of the pressurizing shell 1 through the high-pressure water pump 2, simulating the external pressure born by a pipeline, monitoring the pressure change in the interior of the pressurizing shell 1 in real time through the pressure sensor 3, performing continuous detection work for a certain time, continuously detecting the pressure change in the interior of the pressurizing shell 1, and indicating that the quality of the welding seam of the stainless steel pipe is qualified when the pressure change is smaller than a set value in the set time; after the detection is completed, the three-way valve 7 is rotated, so that the water hole 6 at the bottom of the pressurizing shell 1 is communicated with the opening at the bottom of the three-way valve 7, and high-pressure water in the pressurizing shell 1 is discharged downwards through the three-way valve 7; then, the screw 14 is rotated, the clamping plate 12 is pulled to be separated from the stainless steel pipe, the pressurizing shell 1 is pushed to be separated from the stainless steel pipe by the elasticity of the first spring 20, and the pressurizing detection work of the welding seam of the stainless steel pipe is completed; the welding seam of the stainless steel pipe is detected in an external pressurizing mode, the potential danger of the welding seam of the stainless steel pipe is detected, and the safety of the whole pipeline transportation is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a stainless steel pipe welding seam pressure detector which characterized in that: comprises a pressurizing shell (1) arranged outside a welding line of a stainless steel pipe; the opening of the pressurizing shell (1) can be attached to the outer wall of the stainless steel tube; a fastening unit is arranged on the pressurizing shell (1); the fastening unit is sleeved on the outer side of the stainless steel pipe; the bottom of the pressurizing shell (1) is fixedly connected with a high-pressure water pump (2); the water inlet end pipeline of the high-pressure water pump (2) is communicated with a water source; the water outlet end pipeline of the high-pressure water pump (2) is communicated with the inside of the pressurizing shell (1); the top thread of the pressurizing shell (1) is provided with a pressure sensor (3), and a pressure interface of the pressure sensor (3) is communicated with the inside of the pressurizing shell (1).
2. The stainless steel pipe weld pressure detector of claim 1, wherein: the opening of the pressurizing shell (1) is fixedly connected with a rubber sealing ring (4); the rubber sealing ring (4) is attached to the outer wall of the stainless steel tube; a cavity is formed in the rubber sealing ring (4); a concave part is arranged on one side of the rubber sealing ring (4) far away from the pressurizing shell (1); an air pump (5) is fixedly connected to the top surface of the pressurizing shell (1); and an air outlet end pipeline of the air pump (5) is communicated with a cavity inside the rubber sealing ring (4).
3. The stainless steel pipe weld pressure detector of claim 1, wherein: a water hole (6) is formed in the bottom of the pressurizing shell (1); a three-way valve (7) is arranged at the bottom thread of the water hole (6); one end of the three-way valve (7) is communicated with the water inlet end of the high-pressure water pump (2); a filter plug (8) is arranged on the top thread of the water hole (6).
4. The stainless steel pipe weld pressure detector of claim 1, wherein: the four sides of the interior of the pressurizing shell (1) are fixedly connected with grid-shaped reinforcing ribs (9); two adjacent reinforcing ribs (9) are fixedly connected with each other.
5. The stainless steel pipe weld pressure detector of claim 1, wherein: the fastening unit comprises a connecting plate (10) arranged on both sides of the top and the bottom of one surface of the pressurizing shell (1) far away from the stainless steel pipe; one end of the connecting plate (10) far away from the pressurizing shell (1) and one surface close to the stainless steel tube are fixedly connected with a connecting rod (11); a clamping plate (12) is arranged on one side of the stainless steel tube, which is far away from the pressurizing shell (1); the connecting rod (11) slides through the clamping plate (12); one end of the connecting rods (11) far away from the pressurizing shell (1) is provided with a fixed plate (13); a screw (14) is arranged in the middle of the fixed plate (13) in a threaded manner, and the screw (14) penetrates through the fixed plate (13); one end of the screw rod (14) close to the clamping plate (12) is rotationally connected with the middle part of the clamping plate (12); a rubber cushion block (15) is fixedly connected to one surface of the clamping plate (12) close to the stainless steel pipe; the rubber cushion block (15) can be attached to the outer wall of the stainless steel tube.
6. The stainless steel tube weld pressure detector of claim 5, wherein: insert blocks (16) are fixedly connected to the top and the two sides of the bottom of one surface of the pressurizing shell (1) far away from the stainless steel pipe; a chute (17) is formed in the middle of the connecting plate (10); the insert (16) is fixedly connected with the chute (17) of the connecting plate (10) through bolts; vertical grooves are formed in the two sides of the top and the bottom of the clamping plate (12) and the fixed plate (13); a sliding column (18) is slidably arranged in the vertical groove of the fixed plate (13); the sliding column (18) is fixedly connected with the end part of the connecting rod (11); a sliding sleeve (19) is slidably arranged in the vertical groove of the clamping plate (12); the sliding sleeve (19) is sleeved on the outer ring of the connecting rod (11).
7. The stainless steel tube weld pressure detector of claim 5, wherein: a number one spring (20) is sleeved on the outer rings of the two connecting rods (11) at the bottom; the first spring (20) is positioned between the connecting plate (10) and the clamping plate (12).
8. The stainless steel tube weld pressure detector of claim 5, wherein: a pair of sleeve seats (21) are sleeved on the outer rings of the two connecting rods (11) at the top; the bottoms of the two ends of the sleeve seat (21) are bolted with idler wheels (22); the outer ring of the hub of the roller (22) is made of soft rubber; the bottom of the roller (22) is in sliding fit with the top wall of the stainless steel tube.
9. The stainless steel tube weld pressure detector of claim 8, wherein: the inner ring of the sleeve seat (21) is provided with a linear bearing (23); the inner wall of the linear bearing (23) is in sliding fit with the outer wall of the connecting rod (11); a second spring (24) is fixedly connected between each pair of sleeve seats (21); the second spring (24) is sleeved on the outer ring of the connecting rod (11).
10. A stainless steel pipe weld pressure detector as set forth in claim 2 wherein: an oil tank (25) is fixedly connected to one side of the pressurizing shell (1); a pressurizing pump is arranged at the top of the oil tank (25); sealing grease is filled in the oil tank (25); the bottom end pipeline of the oil tank (25) is communicated with a concave part of one side of the rubber sealing ring (4) far away from the pressurizing shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310745885.7A CN116754152A (en) | 2023-06-25 | 2023-06-25 | Stainless steel pipe welding seam pressure detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310745885.7A CN116754152A (en) | 2023-06-25 | 2023-06-25 | Stainless steel pipe welding seam pressure detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116754152A true CN116754152A (en) | 2023-09-15 |
Family
ID=87960549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310745885.7A Pending CN116754152A (en) | 2023-06-25 | 2023-06-25 | Stainless steel pipe welding seam pressure detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116754152A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117405517A (en) * | 2023-12-13 | 2024-01-16 | 北京中智蓝瑞机械设备有限公司 | Part welding strength detects machine |
-
2023
- 2023-06-25 CN CN202310745885.7A patent/CN116754152A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117405517A (en) * | 2023-12-13 | 2024-01-16 | 北京中智蓝瑞机械设备有限公司 | Part welding strength detects machine |
| CN117405517B (en) * | 2023-12-13 | 2024-02-13 | 北京中智蓝瑞机械设备有限公司 | Part welding strength detects machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116754152A (en) | Stainless steel pipe welding seam pressure detector | |
| CN107166113B (en) | Adaptive underwater oval pipe jointer | |
| GB1413319A (en) | Recovery and repair of offshore pipelines | |
| CN108225934B (en) | Testing system for external pressure resistance of lining steel pipe of water delivery tunnel | |
| RU2327073C1 (en) | Ball valve-condensate collector | |
| CN113281187A (en) | Pipe pressure resistance testing device and testing method thereof | |
| CN203350242U (en) | Mobile simulative pipeline test platform | |
| CN101561338B (en) | Pipeline pressure test method and device | |
| CN203907114U (en) | Pipeline pressure-bearing leak-repairing device | |
| CN210716988U (en) | Coal mine underground water supply pipeline leakage rapid detection device | |
| CN210464782U (en) | Fire control water supply facility detection mechanism with pressure device | |
| CN113770135A (en) | Drainage and cleaning system and method in pipeline crossing river section | |
| CN113155671A (en) | Measuring method of continuous automatic measuring and sampling device for density and pH value of slurry of desulfurization absorption tower | |
| TWM614733U (en) | Warning and monitoring device for underground oil pipeline | |
| CN106402662A (en) | Pipeline fluid leak detection device | |
| CN201377655Y (en) | Fast pressurized plugging device of oil and gas pipeline | |
| CN102109096A (en) | Doghouse-type submarine petroleum pipeline leakage collector | |
| CN206648785U (en) | A kind of light pipe shape tubing seal degree detection means | |
| KR20170024633A (en) | Apparatus of inspecting corrosion by seawater in welding flaw of pipe | |
| CN205535084U (en) | Oil gas warehousing and transportation pipeline with leak detection function | |
| CN207528400U (en) | A kind of oil transportation composite pipe tightness detecting device | |
| CN219263985U (en) | Quick detection device is revealed to natural gas line | |
| CN217584097U (en) | Linkage device for marine pipe operation | |
| CN219529275U (en) | Simple pump detection pressure measuring platform | |
| TWM582206U (en) | Zero-pollution warning equipment for underground oil pipe at gas station |
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 |