CN105021466A - Pressure shock test device - Google Patents
Pressure shock test device Download PDFInfo
- Publication number
- CN105021466A CN105021466A CN201510385392.2A CN201510385392A CN105021466A CN 105021466 A CN105021466 A CN 105021466A CN 201510385392 A CN201510385392 A CN 201510385392A CN 105021466 A CN105021466 A CN 105021466A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- water tank
- pressure
- pipe
- push rod
- 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.)
- Granted
Links
Abstract
The present invention discloses a pressure shock test device, which comprises a water tank, a cylinder and a piston push rod. The top of the piston push rod is provided with a piston located within the cylinder, and the other end of the piston push rod extends into the tank; the top of the cylinder is connected to a gas source; a water supplement tank is connected with the water tank; and the side surface of the water tank is provided with a pipe fitting connecting pipe in connection with a test pipe. The pressure shock test device applies air pressure to the top of the piston on the upper portion of the cylinder through the gas source, so that the piston pushes the piston push rod downwards pressure to apply pressure on the water tank, and the pipe fitting connecting pipe delivers water pressure to the test pipe through the pipe fitting connecting pipe, so as to conduct pipe pressure impact test. After removal of the pressure of the cylinder, the water pressure drops to zero quickly. The device can quickly complete pipe pressure shock test, and does not require repeated water filling, so that the pipe pressure shock test is more secure, reliable and energy-saving. The invention can be used in the field of pipe-fitting pressure impact test.
Description
Technical field
The present invention relates to mechanical test apparatus field, particularly relate to a kind of compression shock testing equipment.
Background technology
At present, pipeline and the various pipeline connected mode of various material are a lot, but various pipeline connected mode performance how, which kind of be adapted to carry medium, the security Gao Bugao connected, all will through a series of testing and verification and inspection, and compression shock test is the most basic test that must do.
Such as GB/T19228 regulation, the pipe fitting of stainless steel cartridge connection has to pass through compression shock test, joint is required to be connected with the pipe of more than 500mm, after inside fills water, boost to 2.5MPa, then decompression is to 0MPa, this operation should complete in 2s, and as one-period, instead apply the same interior pressure in 1500 cycles, seepage must not be had, omitted and other are abnormal.
Visible compression shock test has very important effect.The compression shock test of commercially applying with each pipe fitting enterprise is at present standby, mostly is comparatively simple and crude equipment.Its use procedure will be for will test in pipe fitting connecting system, open stop valve and prepare test, start experiment, high pressure water-injection pump to water pot water filling, when water pot and test pipe fitting water pressure reach the 2.5MPa of regulation time, high pressure water-injection pump stops water filling, draining opened by solenoid valve, then the pressure of water in water pot and test pipe fitting is reduced to 0MPa, at this moment closed electromagnetic valve, high pressure water-injection pump, again to water pot water filling, starts second period.This way utilizes high pressure water-injection pump to provide pressure, solenoid valve draining pressure release, and principle is simple, but there is very large defect.
First, high-pressure hydraulic pump pressure is high, and flow is little, and waterflood injection rate is slow.Secondly, when opening solenoid valve draining pressure release, due to the pressure of water and the reason of viscosity, drainage speed can be very fast, likely produces suck-back, cause the water major part of water pot to flow away, after causing second round, want first water filling again to pressurize, due to the characteristic that high-pressure hydraulic pump flow is little, water filling pressurization will be completed at about 1s very difficult; If program sets the cycle of 2s by force, experiment will serious distortion.In addition, high pressure water-injection pump opens for a long time, uneconomical; The every 2s of motor will stop, open once, and frequent starting is very large to motor injury, and, in this system, according to the pressure of pump higher time, have the potential safety hazard of pressure superelevation, must safety valve be installed additional.
Summary of the invention
For solving the problem, the invention provides the more superior and compression shock testing equipment that is energy-conserving and environment-protective more of a kind of performance.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of compression shock testing equipment, comprise water tank, cylinder and piston push rod, the top of piston push rod is provided with the piston being positioned at cylinder, the other end of piston push rod stretches in water tank, the top of cylinder is connected with source of the gas, be connected with water tank and be provided with moisturizing groove, the side of water tank is also provided with the pipe fitting jointing pipe of joint test pipe fitting.
Be further used as the improvement of technical solution of the present invention, cylinder is fixedly installed in the top of water tank, the cylinder barrel that cylinder comprises cylinder rear end cap, cylinder front end end cover and is connected between cylinder rear end cap and cylinder front end end cover, and piston slides along cylinder barrel inwall.
Be further used as the improvement of technical solution of the present invention, the sidewall of cylinder rear end cap and cylinder front end end cover is all connected to 3 position-5 way solenoid valve by airflow line, 3 position-5 way solenoid valve is connected to source of the gas by pneumatic triplet, and the airflow line be connected with cylinder rear end cap and cylinder front end end cover is equipped with throttling valve.
Be further used as the improvement of technical solution of the present invention, the top of water tank is provided with some flange connecting holes, the top of water tank is connected with a joint flange by flange connecting hole, the bottom of cylinder front end end cover be provided with to embed in the middle part of joint flange and and the flange sealed between piston push rod, center through water tank top cover is provided with the supercharging cylinder sleeve stretching into water tank inside, and piston push rod can slide in supercharging cylinder sleeve.
Be further used as the improvement of technical solution of the present invention, the outer wall of water tank is provided with three pipeline connection ports and is positioned at the sewage draining exit of water tank bottom, and sewage draining exit place is provided with blowoff valve.
Be further used as the improvement of technical solution of the present invention, on tank outer wall, wherein a pipeline connection port connects moisturizing groove by water pipe, and be connected with water pipe and be also provided with waterflood pump, water pipe is provided with retaining valve and is positioned at the stop valve of moisturizing groove and water filling pump side.
Be further used as the improvement of technical solution of the present invention, water tank is connected with tensimeter by a pipeline connection port and is positioned at the pressure meter switch on connecting tube.
Be further used as the improvement of technical solution of the present invention, pipe fitting jointing pipe is provided with stop valve.
Beneficial effect of the present invention: this compression shock testing equipment is by the piston tip applying air pressure of source of the gas to cylinder top, piston can be forced to promote piston push rod downwards pressure is applied to water tank, and by pipe fitting jointing pipe to test pipe fitting conveying hydraulic pressure, carry out the test of pipe fitting compression shock, the pressure that this equipment removes cylinder can make hydraulic pressure be down to zero rapidly, the test of pipe fitting compression shock can be completed fast by this equipment, and without the need to repeatedly water-filling, pipe fitting compression shock is made to test safety and reliability, and more energy-conserving and environment-protective.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is embodiment of the present invention one-piece construction schematic diagram.
Embodiment
With reference to Fig. 1, the present invention is a kind of compression shock testing equipment, comprise water tank 1, cylinder 2 and piston push rod 3, the top of piston push rod 3 is provided with the piston 31 being positioned at cylinder 2, the other end of piston push rod 3 stretches in water tank 1, the top of cylinder 2 is connected with source of the gas 4, and being connected with water tank 1 is provided with moisturizing groove 5, and the side of water tank 1 is also provided with the pipe fitting jointing pipe 6 of joint test pipe fitting.
This compression shock testing equipment is by the piston 31 top applying air pressure of source of the gas 4 to cylinder 2 top, piston 31 can be forced to promote piston push rod 3 pairs of water tanks 1 downwards and to apply pressure, and by pipe fitting jointing pipe 6 to test pipe fitting conveying hydraulic pressure, carry out the test of pipe fitting compression shock, the pressure that this equipment removes cylinder 2 can make hydraulic pressure be down to zero rapidly, the test of pipe fitting compression shock can be completed fast by this equipment, and without the need to repeatedly water-filling, pipe fitting compression shock is made to test safety and reliability, and more energy-conserving and environment-protective.
As the preferred embodiment of the present invention, cylinder 2 is fixedly installed in the top of water tank 1, the cylinder barrel 23 that cylinder 2 comprises cylinder rear end cap 21, cylinder front end end cover 22 and is connected between cylinder rear end cap 21 and cylinder front end end cover 22, piston 31 slides along cylinder barrel 23 inwall.
As the preferred embodiment of the present invention, the sidewall of cylinder rear end cap 21 and cylinder front end end cover 22 is all connected to 3 position-5 way solenoid valve 41 by airflow line, 3 position-5 way solenoid valve 41 is connected to source of the gas 4 by pneumatic triplet 42, and the airflow line be connected with cylinder rear end cap 21 and cylinder front end end cover 22 is equipped with throttling valve.
As the preferred embodiment of the present invention, the top of water tank 1 is provided with some flange connecting holes, the top of water tank 1 is connected with a joint flange 7 by flange connecting hole, the bottom of cylinder front end end cover 22 be provided with to embed in the middle part of joint flange 7 and and the flange 221 sealed between piston push rod 3, center through water tank 1 top cover is provided with the supercharging cylinder sleeve 8 stretching into water tank 1 inside, and piston push rod 3 can slide in supercharging cylinder sleeve 8.
As the preferred embodiment of the present invention, the sewage draining exit 11 that the outer wall of water tank 1 is provided with three pipeline connection ports and is positioned at bottom water tank 1, sewage draining exit 11 place is provided with blowoff valve 111.
As the preferred embodiment of the present invention, on water tank 1 outer wall, wherein a pipeline connection port connects moisturizing groove 5 by water pipe, and be connected with water pipe and be also provided with waterflood pump 51, water pipe is provided with retaining valve and is positioned at the stop valve of moisturizing groove 5 and waterflood pump 51 side.
As the preferred embodiment of the present invention, water tank 1 is connected with tensimeter 9 by a pipeline connection port and is positioned at the pressure meter switch 91 on connecting tube.
As the preferred embodiment of the present invention, pipe fitting jointing pipe 6 is provided with stop valve.
Water tank 1 is tubular construction, the stack shell of water tank 1 is welded with three and connects pore, a tensimeter 9 exported by stop valve joint test pipe fitting, another Bonding pressure table switch 91 and connecting band signal by retaining valve connection waterflood pump 51 and moisturizing groove 5.A sewage draining exit 11 is offered in the bottom of water tank 1, offers a hole coordinate with supercharging cylinder sleeve 8 at top.Supercharging cylinder sleeve 8 is long tubular constructions, and one end is joint flange 7, supercharging cylinder sleeve 8 is locked in the top of water tank 1, and endoporus, through grinding finishing, reaches seal request.The internal diameter of the cylinder barrel 23 of cylinder 2 is designed to 5 times of piston push rod 3 external diameter, and the anterior car of piston push rod 3 has an annular groove, is used for filling O-ring seal.The center of joint flange 7 has a hole to coordinate with cylinder 2, front end boss coordinates with the seam at water tank 1 top, joint flange 7 is locked in the top of water tank 1 after loading onto cylinder 2, because there is seam to locate between them, can guarantee that the piston push rod 3 in cylinder 2 is inserted in supercharging cylinder sleeve 8.
During test, test pipe fitting is connected with pipe fitting jointing pipe 6, after opening stop valve, opens waterflood pump 51 to water tank 1 and test pipe fitting water-filling, close down waterflood pump 51 after being full of water, stop pump water.3 position-5 way solenoid valve 41 moves right when connecting, source of the gas 4 is ventilated to the top of piston 31 by cylinder rear end cap 21 above cylinder 2, promotion piston 31 and piston push rod 3 move downward, and piston push rod 3 to the water pressed down in pressurized cylinder cover 8, thus is exerted pressure to test pipe fitting by pipe fitting jointing pipe 6.
Force analysis is carried out to piston push rod 3: ignore Mo Li and gravity, one is the pressure F at piston 31 top, pressure F=piston 31 area S × air pressure P1, one is the opposite pressure f of water in bottom supercharging cylinder sleeve 8, the pressure P 2 of the area A × water of f=piston push rod 3, according to balance between two forces F=f, i.e. SP1=AP2, because the area S of piston 31 is 5 times of piston push rod 3 area, so pressure P 2=5 times of P1 of water in supercharging cylinder sleeve 8, when we pass into the pressure of 0.5MPa to piston 31 top in cylinder 2, pressure P 2=5P1=5 × the 0.5=2.5MPa of water in supercharging cylinder sleeve 8, according to Pascal's theorem, all is all 2.5MPa with the water of the aqueous phase in supercharging cylinder sleeve 8, so water tank 1 and the hydraulic pressure tested in pipe fitting are all 2.5MPa, at this moment the tensimeter 9 that band signal exports sends the enough signals of pressure, it is to moving to left that 3 position-5 way solenoid valve 41 is connected, to the piston 31 bottom ventilation in cylinder 2, promotion piston 31 and piston push rod 3 move upward, make the water pressure release in supercharging cylinder sleeve 8, when the hydraulic pressure pressure release in supercharging cylinder sleeve 8 to 0 time, that is water tank 1 and test pipe fitting pressure let out 0, at this moment tensimeter 9 sends signal again, it is move right that 3 position-5 way solenoid valve 41 is connected, to the piston 31 top ventilation in cylinder 2, promote piston push rod 3 to the water pressed down in pressurized cylinder cover 8, carry out next cycle.
After adopting this equipment, with the water pump of low pressure and mass flow, pass through retaining valve, only once to water tank 1 and the water filling of test pipe fitting, turn off waterflood pump 51 after being full of water, remove the water in setting-out case 1 with cylinder 2, utilize supercharging technology to make the water of water tank 1 and test pipe fitting produce pressure surge.The advantage of this equipment utilizes cylinder, reaction velocity is fast, make the fast response time of whole system, to not be used in whole process of the test water filling draining repeatedly and open water pump for a long time, saving the energy, without frequent starting motor, motor can not be injured, Pneumatic pressure can ventilate dynamic triplet setting, there will not be the safety problem of superpressure, not only economy but also safety.
And the present invention can be applied in the device of other pressure surges with in test, piston 31 external diameter in adjustment cylinder 2 and the ratio of piston push rod 3 external diameter, just can change the size of surge pressure, adapt to the testing equipment of various pressure.
This device also can change the cylinder at top into hydraulic cylinder, provides larger pressure surge value, adapts to the testing equipment of various high pressure.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (8)
1. a compression shock testing equipment, it is characterized in that: comprise water tank (1), cylinder (2) and piston push rod (3), the top of described piston push rod (3) is provided with the piston (31) being positioned at cylinder (2), the other end of described piston push rod (3) stretches in water tank (1), the top of described cylinder (2) is connected with source of the gas (4), be connected with described water tank (1) and be provided with moisturizing groove (5), the side of described water tank (1) is also provided with the pipe fitting jointing pipe (6) of joint test pipe fitting.
2. compression shock testing equipment according to claim 1, it is characterized in that: described cylinder (2) is fixedly installed in the top of water tank (1), the cylinder barrel (23) that described cylinder (2) comprises cylinder rear end cap (21), cylinder front end end cover (22) and is connected between cylinder rear end cap (21) and cylinder front end end cover (22), described piston (31) slides along cylinder barrel (23) inwall.
3. compression shock testing equipment according to claim 2, it is characterized in that: the sidewall of described cylinder rear end cap (21) and cylinder front end end cover (22) is all connected to 3 position-5 way solenoid valve (41) by airflow line, described 3 position-5 way solenoid valve (41) is connected to source of the gas (4) by pneumatic triplet (42), and the airflow line be connected with described cylinder rear end cap (21) and cylinder front end end cover (22) is equipped with throttling valve.
4. compression shock testing equipment according to claim 2, it is characterized in that: the top of described water tank (1) is provided with some flange connecting holes, the top of described water tank (1) is connected with a joint flange (7) by flange connecting hole, the bottom of described cylinder front end end cover (22) be provided with embed joint flange (7) middle part and and the flange (221) sealed between piston push rod (3), center through described water tank (1) top cover is provided with stretches into the inner supercharging cylinder sleeve (8) of water tank (1), and described piston push rod (3) can slide in supercharging cylinder sleeve (8).
5. according to the compression shock testing equipment in Claims 1 to 4 described in any, it is characterized in that: the outer wall of described water tank (1) is provided with three pipeline connection ports and is positioned at the sewage draining exit (11) of water tank (1) bottom, and described sewage draining exit (11) place is provided with blowoff valve (111).
6. compression shock testing equipment according to claim 5, it is characterized in that: on described water tank (1) outer wall, wherein a pipeline connection port connects moisturizing groove (5) by water pipe, be connected with described water pipe and be also provided with waterflood pump (51), described water pipe is provided with retaining valve and is positioned at the stop valve of moisturizing groove (5) and waterflood pump (51) side.
7. compression shock testing equipment according to claim 5, is characterized in that: described water tank (1) is connected with tensimeter (9) by a pipeline connection port and is positioned at the pressure meter switch (91) on connecting tube.
8. compression shock testing equipment according to claim 5, is characterized in that: described pipe fitting jointing pipe (6) is provided with stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385392.2A CN105021466B (en) | 2015-07-01 | 2015-07-01 | A kind of compression shock testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385392.2A CN105021466B (en) | 2015-07-01 | 2015-07-01 | A kind of compression shock testing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105021466A true CN105021466A (en) | 2015-11-04 |
| CN105021466B CN105021466B (en) | 2017-10-31 |
Family
ID=54411601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510385392.2A Active CN105021466B (en) | 2015-07-01 | 2015-07-01 | A kind of compression shock testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105021466B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208116A (en) * | 2019-05-27 | 2019-09-06 | 华东交通大学 | A kind of pneumatic type varying load multi-source impact experiment apparatus |
| CN112903280A (en) * | 2020-12-15 | 2021-06-04 | 西安航天动力研究所 | Valve impact performance test pipeline and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045490U (en) * | 1989-03-18 | 1989-10-04 | 黄云龙 | Multifunction pressure tester |
| CN202066745U (en) * | 2011-06-01 | 2011-12-07 | 江苏丰信不锈钢制造有限公司 | Boosting device of fully-automatic hydraulic press |
| CN202256066U (en) * | 2011-10-21 | 2012-05-30 | 融林塑胶(福建)有限公司 | Plastic pipeline hydrostatic test machine |
| JP2012127833A (en) * | 2010-12-16 | 2012-07-05 | Daido Steel Co Ltd | Hydraulic pressure tester for pipe |
| CN203688366U (en) * | 2014-01-24 | 2014-07-02 | 山东大学 | Hydraulic fracturing water injection loading device based on rock-like resin test piece |
| CN204988892U (en) * | 2015-07-01 | 2016-01-20 | 广东立丰管道科技有限公司 | Pressure collision test equipment |
-
2015
- 2015-07-01 CN CN201510385392.2A patent/CN105021466B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045490U (en) * | 1989-03-18 | 1989-10-04 | 黄云龙 | Multifunction pressure tester |
| JP2012127833A (en) * | 2010-12-16 | 2012-07-05 | Daido Steel Co Ltd | Hydraulic pressure tester for pipe |
| CN202066745U (en) * | 2011-06-01 | 2011-12-07 | 江苏丰信不锈钢制造有限公司 | Boosting device of fully-automatic hydraulic press |
| CN202256066U (en) * | 2011-10-21 | 2012-05-30 | 融林塑胶(福建)有限公司 | Plastic pipeline hydrostatic test machine |
| CN203688366U (en) * | 2014-01-24 | 2014-07-02 | 山东大学 | Hydraulic fracturing water injection loading device based on rock-like resin test piece |
| CN204988892U (en) * | 2015-07-01 | 2016-01-20 | 广东立丰管道科技有限公司 | Pressure collision test equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208116A (en) * | 2019-05-27 | 2019-09-06 | 华东交通大学 | A kind of pneumatic type varying load multi-source impact experiment apparatus |
| CN110208116B (en) * | 2019-05-27 | 2022-02-11 | 华东交通大学 | Pneumatic variable-load multi-source impact experimental device |
| CN112903280A (en) * | 2020-12-15 | 2021-06-04 | 西安航天动力研究所 | Valve impact performance test pipeline and system |
| CN112903280B (en) * | 2020-12-15 | 2023-12-26 | 西安航天动力研究所 | Valve impact performance test pipeline and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105021466B (en) | 2017-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204988892U (en) | Pressure collision test equipment | |
| CN206627252U (en) | A kind of oil-gas pipeline water filling, pressure testing, drainage system | |
| CN206876359U (en) | A kind of valve air-tightness automatic detection device | |
| CN203249742U (en) | Water leakage detection device for washing kettle | |
| CN101694437A (en) | Water jacket and water pressure test device applying same | |
| CN204461702U (en) | A kind of device for detecting sealability of pressure vessel peculiar to vessel | |
| CN105021466A (en) | Pressure shock test device | |
| CN207456699U (en) | Cylinder head detection device | |
| CN204023707U (en) | Compensated with air device | |
| CN102996535A (en) | Pressure testing hydraulic-pressurizing device | |
| CN105716805B (en) | A kind of closure detection device | |
| CN103471785A (en) | Gas tightness detection device for products | |
| CN203146980U (en) | Automatic blocking valve for pipeline leakage | |
| CN202710267U (en) | Detection device and pressure-holding device of chassis hydraulic brake pipeline | |
| CN204944774U (en) | A kind of device for detecting sealability | |
| CN205483426U (en) | Water gauge pressurization testing arrangement | |
| CN104215401A (en) | Gas tight testing device | |
| CN202814802U (en) | Self-sealing pressurizing system of high-pressure water pressure test pipe machine | |
| CN203414263U (en) | Equipment for testing hydraulic pressure of component of explosion-proof motor | |
| CN207351618U (en) | A kind of air-tight pneumatic sole mechanism | |
| CN106153322B (en) | A kind of interior jet-preventing tool test device | |
| CN207600673U (en) | A kind of steel pipe seam tests device for detecting leakage | |
| CN205246293U (en) | Positive densification nature device of automobile ro -Ro vessel ligature eye thimble | |
| CN206504855U (en) | A kind of interior jet-preventing tool test device | |
| CN205593719U (en) | Fire control valve pressure testing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |