CN101348850A - Container strain strengthening system and austenitic stainless steel low temperature container produced by the same - Google Patents
Container strain strengthening system and austenitic stainless steel low temperature container produced by the same Download PDFInfo
- Publication number
- CN101348850A CN101348850A CNA2007101191612A CN200710119161A CN101348850A CN 101348850 A CN101348850 A CN 101348850A CN A2007101191612 A CNA2007101191612 A CN A2007101191612A CN 200710119161 A CN200710119161 A CN 200710119161A CN 101348850 A CN101348850 A CN 101348850A
- Authority
- CN
- China
- Prior art keywords
- temperature
- stainless steel
- vessel
- low
- austenitic stainless
- 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 invention provides a container strain strengthening system, which comprises a water inlet device, a pressure device, a hydraulic power unit, a cooling device and a measurement and control device, wherein the measurement and control device is used for controlling the operations of the water inlet device, the pressure device and the hydraulic power unit. The low-temperature container strain strengthening system can make the strain strengthening processing technique of an austenitic stainless steel low-temperature container not depend on experience and manual control of the test pressure, thereby the labor intensity is greatly reduced and the machining precision and the machining efficiency are improved. Moreover, the invention also provides the austenitic stainless steel low-temperature container prepared by the container strain strengthening system.
Description
Technical field
The present invention relates to low-temperature pressure container and manufacture and design the field, the austenitic stainless steel low-temperature (low temperature) vessel that relates in particular to a kind of low-temperature (low temperature) vessel strain strengthening system and use this system to produce.
Background technology
The low-temperature (low temperature) vessel that is used for cryogenic medias such as accumulating liquid oxygen, liquid nitrogen, liquid argon, natural gas liquids is a bilayer structure, and inner jar is in order to store cryogenic media.Owing to will bear the low temperature of subzero more than 100 degree, inner jar adopts austenitic stainless steel material.And inner jar will bear certain pressure, and material thickness is bigger.Manufacture and design for austenitic stainless steel pressure vessels, domestic all according to GB150 standards such as " Steel Pressure Vessels ".Similar advanced product with the world is compared, the material thickness that China's product is selected for use is big, from great, cost is high.Therefore, if can reduce the inner jar material thickness under the prerequisite of proof strength, then the economy of product will be clearly.
At the low characteristics of austenitic stainless steel yield strength, container is applied certain pressure, make material totally produce plastix strain, improve yield strength, thereby can adopt thinner material to make low-temperature (low temperature) vessel.This strain hardening technology is adopted by related standards, as among the harmonized stndard EN13458-2:2002 of European Union " Cryogenic vessels-Static vacuum insulated vessels " " austenitic stainless steel strain hardening container " related data just being arranged.
But there are two problems in the strain hardening of present austenite stainless steel container: the one, design the experience that mainly depends on, and do not set up the nonlinear method of strain hardening process; The 2nd, manual control test pressure, not only labour intensity is big, and precision and efficient are low.
Summary of the invention
The objective of the invention is to problem, a kind of austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system is provided at above-mentioned existence.This austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system and using method thereof can reach the purpose of full-automatic pressurized control austenitic stainless steel low-temperature (low temperature) vessel strain hardening according to material strain hardening rule and the nonlinear analysis of strain hardening process.
In order to achieve the above object, the invention provides a kind of austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system, it comprises:
Water feed apparatus is in order to provide the water source;
Supercharging device, it is connected with water feed apparatus by check valve, is pressed in the austenitic stainless steel low-temperature (low temperature) vessel to be processed in order to the supercharging of will intaking;
Hydraulic power unit, it is connected with supercharging device, in order to drive supercharging device work;
Measuring and controlling, this measuring and controlling comprises having the treater that stores the process parameter function, be arranged at the pressure transmitter on the supercharging device outlet pressure duct and be arranged on girth displacement sensor on the wall of container to be processed, described pressure transmitter is in order to collection and the pressure parameter signal in treater transmits process vessel, described girth displacement sensor is in order to gather and to transmit the perimeter change amount parameter signal of process vessel to treater, and described measuring and controlling is in order to the control water feed apparatus, supercharging device and hydraulic power unit carry out strain hardening processing to process vessel.
This strain strengthening system preferably also includes refrigerating unit, is connected on the hydraulic power unit, with the pressure medium in the cooling hydraulic power unit;
The present invention also provides a kind of austenitic stainless steel low-temperature (low temperature) vessel, and this low-temperature (low temperature) vessel structure is followed successively by inner jar, interlayer, outer container from the inside to the outside, and wherein inner jar makes for using strain strengthening system of the present invention.
Low-temperature (low temperature) vessel strain strengthening system of the present invention can make the strain hardening complete processing of austenitic stainless steel low-temperature (low temperature) vessel be no longer dependent on experience and manual control test pressure, has reduced labour intensity widely, improves working accuracy and efficient.
Description of drawings
Fig. 1 strengthens the pressurizing control system schema for the austenitic stainless steel low-temperature (low temperature) vessel;
The austenitic stainless steel low-temperature (low temperature) vessel of Fig. 2 for using strain strengthening system of the present invention to make.
The major parts nomenclature
1 water source, 16 surplus valves
2 strainers, 17 hydro-pumps
3 under meters, 18 fuel tanks
4 intake pumps, 19 cooling pumps
5 tensimeters, 20 water coolers
6 surplus valves, 21 computers
7 supercharging blowers, 22 controllers
8 check valves, 23 PRN devices
9 tensimeters, 24 check valves
10 pressure transmitters, 25 one-way throttle valves
11 one-way throttle valves, 26 containers to be processed
12 bi-bit bi-pass electro hydraulic valves, 27 inner jars
13 tensimeters, 28 interlayers
14 energy storages, 29 outer containers
15 2 four moving electro-hydraulic reversing valves
Embodiment
Strain strengthening system of the present invention comprises existing water feed apparatus, supercharging device, hydraulic power unit, refrigerating unit and measuring and controlling.The pressure medium of system is a water, and supercharging blower 7 adopts oily expelling water technology, and power resources are hydraulic efficiency oil, and system flow as shown in Figure 1.
At first, provide the compression water source by water feed apparatus, water is removed wherein impurity and particulate through filter 2, prevents that supercharging blower 7 and Hydraulic Elements are impaired, improves system work-ing life.Pressure medium water after the filtration is by intake pump 4 superchargings output, for supercharging blower 7 provides the water source.Intake pump 4 is an impeller pump, when output pressure reaches rated pressure, though intake pump 4 does not have flow output in work.For example, intake pump 4 output flows are 200L/min, and output pressure is 1MPa, and power of motor is 5kW.
For preventing that the suction culvert upward pressure raises suddenly under the unforeseen circumstances, damage as supercharging blower 7 inlet one-way valves 8, high-pressure medium enters suction culvert, surplus valve 6 is set on suction culvert, the top pressure of restriction system prevents system overload, and this surplus valve 6 uses as safety valve.
After filling with water in the container to be processed, system begins supercharging.The supercharging device of system is a supercharging blower 7, adopts oil to push away the water supercharging technology.The big area driven plunger of supercharging blower 7 and small area piston link together reciprocating, and hydraulic efficiency oil drives the big area piston motion, thereby make the WATER AS FLOW MEDIUM supercharging in the small area cylinder.The rate of supercharging of supercharging blower 7 is 2: 1, and maximum output flow is 150L/min.Check valve 8 and check valve 24 are all established in the import of supercharging blower 7 high pressure cylinder and outlet, flow backwards to prevent pressure medium.
For realizing supercharging blower 7 reciprocating motions of the pistons, two four moving electro-hydraulic reversing valves 15 are set on supercharging blower 7 in-lines, thereby finish the boost operations of system.The Controlling System rate of pressure rise is realized by control supercharging blower 7 output flows.Rate of pressure rise by vessel volume variable quantity and regulation can be in the hope of the specified output flow of system.By changing the commutating frequency of two four moving electro-hydraulic reversing valves 15, can control the reciprocating number of times of intensifier piston, thereby the size of control supercharging blower 7 output flows makes it to be lower than rated value.
System is used for 50m
3And 100m
3Therefore the container of two kinds of specifications need switch between two flows of size, and manual one-way throttle valve 11,25 is set on the pipeline between reversing valve 15 and the supercharging blower 7 for this reason, reaches the purpose of control supercharging blower 7 output flows by the speed of control oil return.In addition, by manual one-way throttle valve 11,25 and reversing valve 15 actings in conjunction, can realize the flexible of system's rate of pressure rise.
Next be hydraulic power unit, hydraulic efficiency oil process filter is removed impurity and particulate wherein, to prevent the damage of these particles to pressurized cylinder, Hydraulic Elements and measurement controlling elements, prolongs the work-ing life of system.Hydraulic efficiency oil after the filtration drives supercharging blower 7 piston motions through hydro-pump 17 output of boosting.For example, the output pressure of hydro-pump is 8MPa, and output flow is 200L/min, and power of motor is 50kW.
For absorbing the hydraulicefficiency impact that reversing valve 15 commutation suddenly produces, in the work-ing life of improving reversing valve 15, between hydro-pump 17 and two-position four-way electro-hydraulic reversing valve 15, energy storage 14 is set.Hydro-pump 17 output flows are constant, for the unnecessary fluid of hydro-pump 17 outputs is overflowed back fuel tank 18, keep pressure substantially constant in the pipeline, on hydro-pump 17 outlet branch lines surplus valve 16 are set.
Hydraulic efficiency oil is stored in the fuel tank 18, because hydro-pump 17 output flows are very big, and fuel tank 18 natural adjustings own can not be satisfied the needs of oil temperature, and therefore when working long hours, oil is warm can to raise gradually, has a strong impact on the works better and the work-ing life of system.Independently refrigerating unit is set for this reason, deep fat liquid is fed water cooler 20, thereby assurance fluid is worked in the specified temperature scope by cooling pump 19.
The treater of Measurement and Control System comprises controller 22 and computer 21.Working state of system is gathered by pressure transmitter 10, under meter 3 and girth displacement sensor, and be transferred to controller 22, controller 22 carries out the data comparison according to computer 21 stored process parameters and logic is judged, and send instruction automatically to two-position four way change valve 15, bi-bit bi-pass electro hydraulic valve 12 and hydro-pump 17, the boosting of Controlling System, pressurize and stress-relief process, the rate of pressure rise of Controlling System, and can automatic ftercompction when container pressure reduces.For example when pressure reaches set(ting)value, hydro-pump 17 and intake pump 4 will be closed automatically, and system enters packing stage, and when pressurize fixed time or strain rate reached set(ting)value, bi-bit bi-pass electro hydraulic valve 12 was opened automatically, system's release.
For recording the pressure in the container, on supercharging blower 7 outlet pressure ducts, pressure transmitter 10 is set.For recording the swell increment of container, under meter 3 is set on suction culvert, record flow and concern over time, just can calculate the size of the swell increment of container in the time shaft upper integral by flow.For recording the strain rate of container, the girth displacement sensor is installed on the tested container wall, record the perimeter change amount, compare with the former girth of container by the perimeter change amount, just obtain the strain rate of container again divided by the time.
In addition, be respectively equipped with tensimeter 9,5,13 on supercharging blower 7 export pipelines, suction culvert and hydro-pump 17 export pipelines, in order to auxiliary display system pressure.
Special-purpose control software is equipped with on the computer 21, can on man-machine interface, set and store process parameters such as operating pressure, dwell time, rate of pressure rise, strain rate, by transmitter gatherer process data, record pressure-time, swell increment-time and strain rate-time-varying relationship, and digitizing and graphical the demonstration, each is organized process data and can store according to user's needs, can automatic report generation after the off-test, can store or printout according to user's needs.
System pressure when overload, can the auto stop unloading and send guard signal, alarm pressure can be set in computer.
What need statement is that foregoing invention content and embodiment are intended to prove the practical application of technical scheme provided by the present invention, should not be construed as the qualification to protection domain of the present invention.Those skilled in the art are in spirit of the present invention and principle, when doing various modifications, being equal to and replacing or improve.Protection scope of the present invention is as the criterion with appended claims.
Claims (9)
1. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system is characterized in that comprising:
Water feed apparatus is in order to provide the water source;
Supercharging device, it is connected with water feed apparatus by check valve, is pressed in the austenitic stainless steel low-temperature (low temperature) vessel to be processed in order to the supercharging of will intaking;
Hydraulic power unit, it is connected with supercharging device, in order to drive supercharging device work;
Measuring and controlling, this measuring and controlling comprises having the treater that stores the process parameter function, be arranged at the pressure transmitter on the supercharging device outlet pressure duct and be arranged on girth displacement sensor on the wall of container to be processed, described pressure transmitter is in order to collection and the pressure parameter signal in treater transmits process vessel, described girth displacement sensor is in order to gather and to transmit the perimeter change amount parameter signal of process vessel to treater, and described measuring and controlling is in order to the control water feed apparatus, supercharging device and hydraulic power unit carry out strain hardening processing to process vessel.
2. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system as claimed in claim 1, it is characterized in that, described strain strengthening system also comprises refrigerating unit, and this refrigerating unit is connected on the hydraulic power unit, in order to the pressure medium in the cooling hydraulic power unit.
3. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system as claimed in claim 1 is characterized in that described measuring and controlling also comprises bi-bit bi-pass electro hydraulic valve and tensimeter, and described bi-bit bi-pass electro hydraulic valve is electrically connected with treater, to receive control signal; Described tensimeter is arranged on the supercharging device export pipeline.
4. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system as claimed in claim 1, it is characterized in that, described treater comprises controller and computer, wherein computer is in order to set and the storage process parameter, controller carries out the data comparison in order to the process parameter that computer is stored and system's actual parameter and logic is judged, water feed apparatus, supercharging device and hydraulic power unit is controlled again.
5. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system as claimed in claim 1, it is characterized in that, described water feed apparatus comprises that flow takes into account intake pump, wherein under meter is electrically connected with treater, to transmit the flow parameter signal to described treater, intake pump is electrically connected with treater, to receive control signal.
6. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system as claimed in claim 1 is characterized in that, described supercharging device comprises that supercharging device is connected with hydraulic power unit by this two-position four way change valve by the two-position four way change valve of treater control.
7. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system as claimed in claim 1 is characterized in that, described hydraulic power unit comprises fuel tank and the hydro-pump that is connected with the supercharging device pump, and wherein hydro-pump is electrically connected with treater, to receive control signal.
8. austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system as claimed in claim 1 is characterized in that, when described system pressure overload, can the auto stop unloading and send guard signal, and alarm pressure can be set in treater.
9. austenitic stainless steel low-temperature (low temperature) vessel, this low-temperature (low temperature) vessel structure is followed successively by inner jar, interlayer, outer container from the inside to the outside, and the inner jar that it is characterized in that this austenitic stainless steel low-temperature (low temperature) vessel requires for using aforesaid right that each described austenitic stainless steel low-temperature (low temperature) vessel strain strengthening system makes in 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101191612A CN101348850B (en) | 2007-07-17 | 2007-07-17 | Container strain strengthening system and austenitic stainless steel low temperature container produced by the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101191612A CN101348850B (en) | 2007-07-17 | 2007-07-17 | Container strain strengthening system and austenitic stainless steel low temperature container produced by the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348850A true CN101348850A (en) | 2009-01-21 |
| CN101348850B CN101348850B (en) | 2011-03-16 |
Family
ID=40267824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101191612A Active CN101348850B (en) | 2007-07-17 | 2007-07-17 | Container strain strengthening system and austenitic stainless steel low temperature container produced by the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101348850B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703663A (en) * | 2012-05-29 | 2012-10-03 | 华南理工大学 | Strain strengthening pressure device and pressure method for austenitic stainless steel low-temperature vessel |
| CN103276171A (en) * | 2013-05-28 | 2013-09-04 | 浙江大学 | Method for determining strain strengthening pressure maintaining completion time of austenitic stainless steel low-temperature container |
| CN104087730A (en) * | 2014-07-16 | 2014-10-08 | 甘肃蓝科石化高新装备股份有限公司 | Method for strain strengthening of austenitic stainless steel low-temperature pressure vessel |
| EP2813798A1 (en) * | 2012-02-06 | 2014-12-17 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Blast treatment method |
| CN105423127A (en) * | 2014-09-17 | 2016-03-23 | 石家庄安瑞科气体机械有限公司 | Strain strengthening low temperature container with charging limiting device and strain strengthening method thereof |
| CN107460304A (en) * | 2017-08-11 | 2017-12-12 | 查特深冷工程系统(常州)有限公司 | A kind of control system and method for strain hardening dependent variable |
| CN109777936A (en) * | 2019-02-26 | 2019-05-21 | 东南大学 | A kind of martensitic stain less steel ultralow temperature strain hardening method |
| CN110595744A (en) * | 2019-08-04 | 2019-12-20 | 刘宁岗 | Strain strengthening process equipment and operation method and test system thereof |
| CN110748312A (en) * | 2019-11-26 | 2020-02-04 | 深圳大学 | Active pressure supplementing structure and method for coring device with motor for pressurization |
| CN112128606A (en) * | 2020-10-30 | 2020-12-25 | 宁波明欣化工机械有限责任公司 | Low-temperature liquid tank car or tank box inner tank and strain-strengthened water inlet and drainage process thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354008Y (en) * | 1998-11-17 | 1999-12-15 | 北京燕山石油化工公司研究院 | External-pressure beared container of integrated housing with two casings |
-
2007
- 2007-07-17 CN CN2007101191612A patent/CN101348850B/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2813798A1 (en) * | 2012-02-06 | 2014-12-17 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Blast treatment method |
| EP2813798A4 (en) * | 2012-02-06 | 2015-11-18 | Kobe Steel Ltd | Blast treatment method |
| CN102703663A (en) * | 2012-05-29 | 2012-10-03 | 华南理工大学 | Strain strengthening pressure device and pressure method for austenitic stainless steel low-temperature vessel |
| CN103276171A (en) * | 2013-05-28 | 2013-09-04 | 浙江大学 | Method for determining strain strengthening pressure maintaining completion time of austenitic stainless steel low-temperature container |
| CN103276171B (en) * | 2013-05-28 | 2015-02-25 | 浙江大学 | Method for determining strain strengthening pressure maintaining completion time of austenitic stainless steel low-temperature container |
| CN104087730A (en) * | 2014-07-16 | 2014-10-08 | 甘肃蓝科石化高新装备股份有限公司 | Method for strain strengthening of austenitic stainless steel low-temperature pressure vessel |
| CN105423127A (en) * | 2014-09-17 | 2016-03-23 | 石家庄安瑞科气体机械有限公司 | Strain strengthening low temperature container with charging limiting device and strain strengthening method thereof |
| CN105423127B (en) * | 2014-09-17 | 2019-12-17 | 石家庄安瑞科气体机械有限公司 | Strain strengthening low-temperature container with charge limiting device and strain strengthening method thereof |
| CN107460304B (en) * | 2017-08-11 | 2018-08-14 | 查特深冷工程系统(常州)有限公司 | A kind of control system and method for strain hardening dependent variable |
| CN107460304A (en) * | 2017-08-11 | 2017-12-12 | 查特深冷工程系统(常州)有限公司 | A kind of control system and method for strain hardening dependent variable |
| CN109777936A (en) * | 2019-02-26 | 2019-05-21 | 东南大学 | A kind of martensitic stain less steel ultralow temperature strain hardening method |
| CN109777936B (en) * | 2019-02-26 | 2020-11-20 | 东南大学 | Ultra-low temperature strain strengthening method for martensitic stainless steel |
| CN110595744A (en) * | 2019-08-04 | 2019-12-20 | 刘宁岗 | Strain strengthening process equipment and operation method and test system thereof |
| CN110595744B (en) * | 2019-08-04 | 2021-11-02 | 珠海共同低碳科技股份有限公司 | Operation method of strain strengthening process equipment |
| CN110748312A (en) * | 2019-11-26 | 2020-02-04 | 深圳大学 | Active pressure supplementing structure and method for coring device with motor for pressurization |
| CN110748312B (en) * | 2019-11-26 | 2024-01-16 | 深圳大学 | Active pressure compensating structure and method for corer with motor pressurization |
| CN112128606A (en) * | 2020-10-30 | 2020-12-25 | 宁波明欣化工机械有限责任公司 | Low-temperature liquid tank car or tank box inner tank and strain-strengthened water inlet and drainage process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101348850B (en) | 2011-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101348850B (en) | Container strain strengthening system and austenitic stainless steel low temperature container produced by the same | |
| CN201508303U (en) | Hose pulse testing machine | |
| CN105004616B (en) | The many performance test apparatus of low-temperature (low temperature) vessel and test method | |
| CN101672748B (en) | 400MPa super-high pressure fatigue test device and test method | |
| CN202360325U (en) | Hydraulic-drive gas compressor | |
| US20160032911A1 (en) | Gas compressor | |
| CN102392810A (en) | Hydraulically driven gas compressor | |
| CN202612230U (en) | Fluid supercharging device | |
| CN201747684U (en) | Rapidly hydraulic driving system | |
| CN201081084Y (en) | Container straining intensifying system | |
| CN204755219U (en) | Hydraulic pressure compressor | |
| CN112759009A (en) | Pressure oil direct-drive seawater desalination system based on wave energy conversion | |
| CN102322413B (en) | Hydraulic oil piston type natural gas sub-station compressor | |
| CN201763563U (en) | Hydraulic five-cylinder gas compressor | |
| CN2780444Y (en) | Hydraulic device of plastic pneumatic thermoshaping machine | |
| CN102966606A (en) | Hydraulic system with compressed air as power | |
| CN204396584U (en) | The horizontal corrugated pipe forming machine of a kind of super-pressure | |
| CN202250677U (en) | Closed oil piston natural gas substation compressor | |
| CN220399139U (en) | Pressure cycle test device | |
| CN210801717U (en) | Refrigerant mixing injection machine | |
| CN209244760U (en) | A kind of liquid drive gas booster pump | |
| CN201955270U (en) | Common rail pipe high-pressure strengthening test bench | |
| CN2723181Y (en) | Single medium (water) quick speed pressurizing device of cold isostatic pressing machine | |
| CN220727934U (en) | Gas-liquid mixing double-pump driving multi-stage supercharging type gathering and conveying device | |
| CN218271743U (en) | Novel high-pressure hydrogen fatigue machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |