CN2634464Y - High pressure water pressure test machine - Google Patents
High pressure water pressure test machine Download PDFInfo
- Publication number
- CN2634464Y CN2634464Y CN 03201239 CN03201239U CN2634464Y CN 2634464 Y CN2634464 Y CN 2634464Y CN 03201239 CN03201239 CN 03201239 CN 03201239 U CN03201239 U CN 03201239U CN 2634464 Y CN2634464 Y CN 2634464Y
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Abstract
The utility model discloses a high pressure hydraulic testing machine, of which the testing capability can reach 28,000 kN. The testing machine comprises two upper tension beams 1, two lower tension beams 2, an enclosed frame formed by the left frame 3 and a right frame 12 which is connected with a pin roll 15.The movable frame 5 can be connected to the proper position of the upper tension beam 1 and the lower tension beam 2 via the draw-out pin device 7 according to the length of the tested steel tube. Because of the four-box high strength welding beam structure is adopted on the frame of the utility model, the bearable testing tension can reach more than 28,000 kN; more than 10 percent of the material will be saved, and more than 8 percent of the weight will be reduced. Because the driving devices of the utility model are all hydraulic driving devices and full automatic control is realized in the steel tube pressure testing process, 9 to 17 large diameter steel tubes can be tested per hour, and the efficiency is enhanced by more than 10 percent compared with the efficiency of the old equipment. Besides, the operation system is stable and can meet the requirement of the steel tube line whose production is 15 to 20 tons annually.
Description
Technical field the utility model relates to a kind of high pressure hydraulic pressure testing equipment that is used for major diameter straight-line joint submerged arc welding tube and king bolt welded tube, is to carry out the uniform indispensable inspection machine of steel pipe stress after hydraulic pressure leak test and the hole enlargement on the large diameter steel pipe production line.
Background technology is present, the uniform inspection machine of steel pipe stress mostly is the high pressure hydrostatic testing machine that adopts horizontal supercharger after being used for leak test of large diameter steel pipe hydraulic pressure and hole enlargement, it bears maximum test pulling force is 20000kN, as disclosing a kind of hydrostatic testing machine in brave paper " the water pressure engine master cylinder pressure surge analysis " literary composition of 2002 the 4th phase Hou Zhao of " welded tube " magazine, the compound formula was pressurizeed since this equipment adopted horizontal supercharger, pumping rate is slow, during the supercharging commutation steel pipe is produced greater impact, during particularly near test pressure, produce the supercharging dead band sometimes, need to increase a high-pressure low-flow water pump and replenish water under high pressure.The oil pressure balance of hydraulic pressure and supercharger master cylinder is a lever in the steel pipe, must manually adjust when changing the steel pipe specification, and adjusts very difficulty.Pressure tap is away from main frame, and the pressure loss reaches about 10%, causes pressure measurement inaccurate.This equipment is not only because the test pulling force can't satisfy the uniform requirement of steel pipe stress after the hydraulic pressure leak test and hole enlargement on major diameter straight-line joint submerged arc welding tube and the king bolt welded pipe product line, and since four tension beams of this equipment for forging solid cylinder, not only waste material but also increased the weight of equipment.Also because this automation degree of equipment is not high, production efficiency is lower.
The summary of the invention the purpose of this utility model provides a set of equipment, can satisfy diameter and be 40-145cm, length and be the uniform requirement of steel pipe stress after the hydraulic pressure leak test and hole enlargement on the large diameter steel pipe production line of 800-1220cm, its the highest test hydraulic pressure is 26MPa, maximum test pulling force is 28000kN, test efficiency increases substantially, and can adapt to the requirement of robotization control.
For improving maximum test pulling force, the utility model frame adopts four high-strength steel sheet welding box beam to bear the test pulling force, and promptly two upper pulling force beams and two lower pulling force beams are high-strength steel sheet and weld box tension beam.Structure of the present utility model is that two upper pulling force beams, two lower pulling force beams, left frame and right frames connect into sealing frame by bearing pin, left frame is a fixed frame, preceding pressure head is contained in the inboard of left frame, right frame is a movable machine frame, master cylinder is installed on the movable machine frame, back pressure head is contained on the plunger rod of master cylinder, and movable machine frame can be connected to appropriate location on upper pulling force beam and the lower pulling force beam by the insert-pull pin device according to the length that is verified steel pipe.Auxiliary cylinder is installed in the both sides of movable machine frame, and gearing is contained in the rear portion of movable machine frame.Centering jacking gear, stock stop and setting gauge all are contained on the lower pulling force beam.For guaranteeing that supercharging is steady, pumping rate is fast, overcome the supercharging dead band phenomenon when testing, the utility model adopts vertical supercharger to replace horizontal supercharger, and supercharger is made up of oil cylinder and supercharging water vat, links to each other with left frame by pressure duct.
Accurate for pressure measurement, the utility model is located at the hydraulic oil pressure tap on the master cylinder of moving frame, and the water under high pressure pressure tap is located on the left frame.
In order to improve test efficiency, gearing of the present utility model all adopts hydraulic actuator, and realizes Automatic Control and whole-process automatic record by computer.
Because frame of the present utility model adopts four box high strength welded grider structures, bear the test pulling force and can reach more than the 28000kN, can save material more than 10%, weight reduction is more than 8%.The utility model adopts vertical supercharger to compare with horizontal supercharger, and the interior pumping rate of steel pipe can improve more than 15% during the hydraulic testing, owing to do not adopt the reflex supercharging mode, so pressurization is steady; Because gearing of the present utility model is hydraulic actuator, in the steel tube pressure-measuring process, realize full-automatic control by computer, per hour can check 9-17 root large diameter steel pipe, the old equipment of efficiency ratio improves more than 10%, and reliable, can satisfy the job requirements on ton production line of annual production 15～200,000.
Description of drawings
Fig. 1 is the front view of the utility model structure.
Fig. 2 is the vertical view of the utility model structure.
Embodiment as depicted in figs. 1 and 2, the utility model connects into sealing frame by two upper pulling force beams 1, two lower pulling force beams 2, left frame 3 and right frames 12 by bearing pin 15.Insert-pull pin device 7 is loaded on the top of movable machine frame 5, and movable machine frame 5 is connected to appropriate location on upper pulling force beam 1 and the lower pulling force beam 2 according to the length that is verified steel pipe by insert-pull pin device 7.Master cylinder 4 is installed on the movable machine frame 5, and back pressure head 8 is contained on the plunger rod 16 of master cylinder 4, and auxiliary cylinder 17 is installed in the both sides of movable machine frame 5, and gearing 10 is contained in the rear portion of movable machine frame 5.Preceding pressure head 9 is contained in the inboard of left frame 3.Centering jacking gear 6, stock stop 13 and setting gauge 14 all are contained on the lower pulling force beam 2, and carriage 19 is installed on the centering jacking gear 6, and oil motor 18 also is installed on the centering jacking gear 6.Vertical supercharger 11 is made up of oil cylinder and supercharging water vat, links to each other with left frame 3 by pressure duct 20.The hydraulic oil pressure tap is located on the master cylinder 4 of moving frame 5, and the water under high pressure pressure tap is located on the left frame 3.Hydraulic lifting is all adopted in the lifting of centering jacking gear 6 of the present utility model, shelves glassware 13, setting gauge 14, and the motion of each device of the utility model is controlled according to program automatically by computer and omnidistance record process of the test.
During the utility model work, at first press steel pipe length adjustment movable machine frame 5, movable machine frame 5 is pinned on upper pulling force beam 1 and lower pulling force beam 2 by insert-pull pin device 7 in the appropriate location.Then stock stop 13 is placed raised position to prepare backgauge, after steel pipe rolled on the stock stop 13, centering jacking gear 6 began to rise and makes steel pipe center center of the present utility model, and stock stop 13 begins to descend simultaneously.After the steel pipe centering, auxiliary cylinders 17 begins to stretch out, drive master cylinder 4 and stretch out and make back pressure head 8 shift to the steel pipe right-hand member, when the steel pipe two ends by preceding pressure head 9 and after after pressure head 8 compresses, auxiliary cylinders 17 stop motions, the low pressure water supply installation begins to fill low-pressure water in steel pipe.The high service device begins to beat water under high pressure in steel pipe after being full of low-pressure water in the steel pipe, and vertical supercharger 11 is also started working, and the pressure ratio of its oil cylinder and supercharging water vat is controlled to be 1: 2.6-1: 2.8, and optimum value is 1: 2.7.This moment, master cylinder 4 also began pressurization, hydraulic oil in water under high pressure in the steel pipe and the master cylinder 4 is 1 to the proportional control of back pressure head 8 power that produces: 1.10-1: 1.20, optimum value is 1: 1.15, when reaching setting test hydraulic pressure, the steel pipe internal pressure stops to suppress, after the pressurize 20 seconds, hydraulic oil in water under high pressure in the steel pipe and the master cylinder 4 begins step-down, and the two ratio to back pressure head 8 power that produces still is controlled to be 1: 1.15.When the pressure of master cylinder 4 inner high voltage oil is reduced to 10MPa, oppositely oil-filled and drive master cylinder 4 contractions of auxiliary cylinders 17 beginnings, make back pressure head 8 get back to initial position, open oil motor 18 then and make the steel pipe left end leave preceding pressure head 9 certain distances, so that the steel pipe two ends discharge water simultaneously.When steel pipe discharged water, centering jacking gear 6 dropped to initial position, and steel pipe is dropped on the carriage 19.Setting gauge 14 rises after water has been put in the steel pipe, transfers to steel pipe and withdraw automatically to reset.When setting gauge 14 dropped to initial position, stock stop 13 rose to most significant digit, and this moment, a steel pipe inspected, and prepared to carry out the check of next root steel pipe.
Claims (5)
1, a kind of mainly by upper pulling force beam (1), lower pulling force beam (2), left frame (3) and right frame (12), movable machine frame (5), insert-pull pin device (7), master cylinder (4), centering jacking gear (6), supercharger (11), the high pressure hydrostatic testing machine that stock stop (13) and setting gauge (14) are formed, it is characterized in that: two upper pulling force beams (1) and two lower pulling force beams (2) are box tension beam for high-strength steel sheet welds, insert-pull pin device (7) is installed on the top of movable machine frame (5), and movable machine frame (5) is connected to appropriate location on upper pulling force beam (1) and the lower pulling force beam (2) according to the length that is verified steel pipe by insert-pull pin device (7).Master cylinder (4) is installed on the movable machine frame (5), and back pressure head (8) is contained on the plunger rod (16) of master cylinder (4), and auxiliary cylinder (17) is installed in the both sides of movable machine frame (5), and gearing (10) is contained in the rear portion of movable machine frame (5).Preceding pressure head (9) is contained in the inboard of left frame (3).Centering jacking gear (6), stock stop (13) and setting gauge (14) all are contained on the lower pulling force beam (2), and oil motor (18) and carriage (19) are installed on the centering jacking gear (6).Supercharger (11) is vertical supercharger, is made up of oil cylinder and supercharging water vat, links to each other with left frame (3) by pressure duct (20).
2, a kind of high pressure hydrostatic testing machine as claimed in claim 1 is characterized in that: the hydraulic oil pressure tap is located on the master cylinder (4) on the moving frame (5), and the water under high pressure pressure tap is located on the left frame (3).
3, a kind of high pressure hydrostatic testing machine as claimed in claim 1, it is characterized in that: gearing is a hydraulic actuator, and realizes Automatic Control and whole-process automatic record by computer.
4, a kind of high pressure hydrostatic testing machine as claimed in claim 1 is characterized in that: during vertical supercharger (11) work, the pressure ratio of its oil cylinder and supercharging water vat is controlled to be 1: 2.6--1: 2.8, and optimum value is 1: 2.7.
5, a kind of high pressure hydrostatic testing machine as claimed in claim 1, it is characterized in that: during master cylinder (4) pressurization, water under high pressure in the steel pipe and the hydraulic oil in the master cylinder (4) they are 1 to the proportional control of back pressure head (8) power that produces: 1.10--1: 1.20, and optimum value is 1: 1.15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201239 CN2634464Y (en) | 2003-01-17 | 2003-01-17 | High pressure water pressure test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201239 CN2634464Y (en) | 2003-01-17 | 2003-01-17 | High pressure water pressure test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2634464Y true CN2634464Y (en) | 2004-08-18 |
Family
ID=34287399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03201239 Expired - Fee Related CN2634464Y (en) | 2003-01-17 | 2003-01-17 | High pressure water pressure test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2634464Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230867A (en) * | 2011-04-07 | 2011-11-02 | 新兴河北工程技术有限公司 | Hydraulic pressure tester for pipe fitting |
| CN101762425B (en) * | 2008-12-25 | 2012-01-18 | 王及元 | Water pressure test machine |
| CN106908321A (en) * | 2015-12-23 | 2017-06-30 | 合海橡塑装备制造有限公司 | The automation pressure-resistant experimental facilities of tubing |
| CN108064334A (en) * | 2017-11-10 | 2018-05-22 | 苏州富强科技有限公司 | Special-shaped component high pressure watertight sexual function tester |
| CN111948059A (en) * | 2020-08-07 | 2020-11-17 | 上海森松制药设备工程有限公司 | Hydrostatic test method, device, equipment and storage medium |
-
2003
- 2003-01-17 CN CN 03201239 patent/CN2634464Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762425B (en) * | 2008-12-25 | 2012-01-18 | 王及元 | Water pressure test machine |
| CN102230867A (en) * | 2011-04-07 | 2011-11-02 | 新兴河北工程技术有限公司 | Hydraulic pressure tester for pipe fitting |
| CN106908321A (en) * | 2015-12-23 | 2017-06-30 | 合海橡塑装备制造有限公司 | The automation pressure-resistant experimental facilities of tubing |
| CN108064334A (en) * | 2017-11-10 | 2018-05-22 | 苏州富强科技有限公司 | Special-shaped component high pressure watertight sexual function tester |
| CN111948059A (en) * | 2020-08-07 | 2020-11-17 | 上海森松制药设备工程有限公司 | Hydrostatic test method, device, equipment and storage medium |
| CN111948059B (en) * | 2020-08-07 | 2023-06-23 | 上海森松制药设备工程有限公司 | Hydrostatic test method, hydrostatic test device, hydrostatic test equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |