CN101477003B - Apparatus for loading in high-temperature high-pressure surroundings and its use - Google Patents
Apparatus for loading in high-temperature high-pressure surroundings and its use Download PDFInfo
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- CN101477003B CN101477003B CN2008102287119A CN200810228711A CN101477003B CN 101477003 B CN101477003 B CN 101477003B CN 2008102287119 A CN2008102287119 A CN 2008102287119A CN 200810228711 A CN200810228711 A CN 200810228711A CN 101477003 B CN101477003 B CN 101477003B
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- tensile axis
- axle sleeve
- high pressure
- spring
- cooling jacket
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- 238000001816 cooling Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims description 33
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention relates to a loading technique, in particular to a device capable of realizing loading under high temperature and high pressure environment and application thereof, which solve the technical problem of loading a sample under the condition of high temperature and high pressure. The device consists of a shaft housing, a stretching shaft, a cooling jacket, an O-shaped sealing ring, a fixing screw cap, a pressing screw cap, a spring and the like. The shaft housing is connected with a high pressure kettle cover in a sealing way; a high pressure kettle is filled with a water solution with high temperature and high pressure (300 DEG C, 12 MPa ); the stretching shaft extends into the high pressure kettle through the shaft housing to stretch the sample, and the stretching shaft and the shaft housing are dynamically sealed through the O-shaped sealing ring; and cooling water flows through the cooling jacket which matches the shaft housing in a sealing way to make the water solution in the shaft housing keep the lower temperature, thereby ensuring that the O-shaped sealing ring can stably work for a long time. The force that the stretching shaft acts on the sample is mainly generated by the high pressure in the high pressure kettle; and if the load needs to be changed, a spring is compressed by making use of the screw cap or a stress applying block on different positions to change the load. The device provides a simple and reliable loading way under high temperature and high pressure environment.
Description
Technical field
The present invention relates to loading technique, be specially a kind of device and application thereof that realizes loading under the high temperature and high pressure environment.
Background technology
The stress corrosion of material under High Temperature High Pressure liquid phase environment is the major issue that many fields face, typical in circulation line in reaction vessel, the nuclear power station in the chemical industry and steam generator heat-transfer pipe etc., the frequent security incident that causes because of material stress corrosion.So the simulation high temperature and high pressure environment comes research material stress corrosion problem significant in the laboratory.Just must solve the technical barrier that under the high temperature high pressure enclosed environment sample is loaded and will carry out this class research.Ripe relevant device is abroad arranged at present, but cost an arm and a leg, complex structure, working service are all cumbersome, the domestic product that does not still have maturation.
Summary of the invention
The object of the invention is to provide a kind of device and application thereof that realizes loading under the high temperature and high pressure environment, this apparatus structure is simple, working service is all more convenient and can satisfy experimental precision preferably, has solved the technical barrier that under the high temperature high pressure enclosed environment sample is loaded.
Technical scheme of the present invention is as follows:
A kind of device of realizing loading under the high temperature and high pressure environment, this device comprises axle sleeve, tensile axis, cooling jacket, O RunddichtringO I, hold-doun nut, clamping nut, axle sleeve is tightened on autoclave and covers, clamping nut is installed by screw thread in the axle sleeve top, tensile axis reaches in the autoclave by the endoporus of clamping nut and axle sleeve, pass through O RunddichtringO I motive seal between tensile axis and the axle sleeve, the tensile axis outside is provided with the tensile axis convex, be set with cooling jacket in the axle sleeve outside, one end of cooling jacket is crimped on the axle sleeve convex in the axle sleeve outside, and the other end of cooling jacket is fixed by hold-doun nut.
The device that described realization high temperature and high pressure environment loads is down offered two grooves in the position that the axle sleeve outside needs to cool off, and respectively puts an O RunddichtringO II in two grooves, seals by O-ring seal II between cooling jacket and the axle sleeve.
The device that described realization high temperature and high pressure environment loads is down placed packing ring, spring, the packing ring that is set in tensile axis successively on the tensile axis convex of tensile axis, clamping nut is by tensile axis packing washer and spring.
The device that described realization high temperature and high pressure environment loads down, on the tensile axis convex of tensile axis, place block, clamping nut is spun on the axle sleeve by tensile axis, at the clamping nut top, place packing ring, spring, packing ring, the afterburning piece that is set in tensile axis successively, afterburning piece is by tensile axis packing washer and spring.
The application of the device that described realization high temperature and high pressure environment loads down, step is as follows:
(1) axle sleeve is screwed on the high pressure kettle cover respective threads hole;
(2) groove that matches with cooling jacket at axle sleeve is loaded onto O RunddichtringO II, cooling jacket is pushed corresponding position again, and hold-doun nut is screwed in the cooling jacket top position, connects chilled water inlet pipe and cooling water outlet tube then on cooling jacket;
(3) groove at tensile axis puts O RunddichtringO I, tensile axis is inserted in the axle sleeve from top to bottom again, connects the anchor clamps that install the stretching style in the lower end that tensile axis stretches out;
(4) clamping nut is screwed in the axle sleeve top by tensile axis, this moment, stretching device installed.
The application of the device that described realization high temperature and high pressure environment loads down, when to make spring to tensile axis produce compression, when reducing power that pressure differential produces, on the tensile axis convex of tensile axis, place packing ring, spring, packing ring successively, then clamping nut is passed through tensile axis packing washer and spring, rotatably compress nut up to reaching required load with boosting-rod.
The application of the device that described realization high temperature and high pressure environment loads down, in the time will making spring that tensile axis is produced stretching action, the increase load that pressure differential produced, earlier be inserted in block from the top of tensile axis, up to contacting with tensile axis convex on the tensile axis, clamping nut is spun on the axle sleeve by tensile axis, on clamping nut, put packing ring, spring, packing ring successively, then afterburning piece is spun on packing washer and spring on the tensile axis, is enclosed within afterburning rotation the on the afterburning piece with boosting-rod again up to reaching required load.
The invention has the beneficial effects as follows:
1, the present invention mainly relies on the pressure differential of interior liquid of autoclave and ambient atmosphere to promote the outside motion of tensile axis and produces required load, when the autoclave internal pressure is stablized, the load that is produced is also corresponding more stable, and load value is more considerable, when the autoclave internal pressure is 10MPa, load can reach 2kN, can satisfy the demand of experiment to a certain extent; Compare with mature equipment, structure of the present invention is very simple, and working service is very convenient, and a more stable constant load can be provided, and precision is reliable.
2, axle sleeve of the present invention and high pressure kettle cover are tightly connected, and are High Temperature High Pressure (300 ℃, about 12MPa) aqueous solution in the autoclave; Tensile axis extend into autoclave in-draw sample by axle sleeve, realizes motive seal by the O RunddichtringO between tensile axis and the axle sleeve; Chilled water flows through the cooling jacket that cooperates with sleeve sealing makes the aqueous solution in the axle sleeve remain on lower temperature, can guarantee O RunddichtringO long-term stable operation like this; Tensile axis acts on advocating and will being produced by the high pressure in the autoclave of sample, as changing this load, can utilize nut or afterburning piece to realize at different position compression springs.
3, the present invention can reduce load as required within the specific limits on the dependence load basis that pressure differential produced.Implementation is as follows: rotatably compress the nut compression spring on axle sleeve, the compressed spring other end acts on the tensile axis convex, so just on axle, produce a power opposite with pressure difference direction, when the elasticity coefficient spring that is 400N/cm is compressed 2cm, total load just can be reduced to 1.2kN, as will further reducing load, can realize by using the bigger spring of elasticity coefficient instead or increasing amount of spring compression.
4, the present invention can increase load as required within the specific limits on the dependence load basis that pressure differential produced.Implementation is as follows: the afterburning piece compression spring of rotation on tensile axis, the compressed spring other end acts on the clamping nut, so just on axle, produce a power identical with pressure difference direction, when the elasticity coefficient spring that is 400N/cm is compressed 2cm, total load just can increase to 2.8kN, as will further increasing load, can realize by using the bigger spring of elasticity coefficient instead or increasing amount of spring compression.
5, the present invention is suitable for the loading down of high temperature high pressure enclosed environment, temperature range is a normal temperature-300 ℃, pressure limit is normal pressure-20MPa, this device can make tensile axis apply 1.2 to 2.8kN permanent load by suitable compression spring when the still internal pressure is 10MPa, is a kind of simple, reliable technology that loads that realizes under high temperature and high pressure environment.
Description of drawings
Fig. 1 is the whole structure drawing of device of the present invention.
Fig. 2 is the structural drawing of compression spring when reducing load.
The structural drawing that Fig. 3 is a compression spring when increasing load.
Among the figure, 1, axle sleeve; 2, tensile axis; 3, cooling jacket; 4, O-ring seal I; 5, hold-doun nut; 6, block; 7, clamping nut; 8, packing ring; 9, spring; 10, afterburning piece; 11, high pressure kettle cover; 12, tensile axis convex; 13, O-ring seal II; 14, axle sleeve convex; 15, chilled water inlet pipe; 16, cooling water outlet tube.
Embodiment
As shown in Figure 1, The whole control system of the present invention mainly comprises: axle sleeve 1, tensile axis 2, cooling jacket 3, O RunddichtringO I4, hold-doun nut 5, block 6, clamping nut 7, packing ring 8, spring 9, afterburning piece 10, annexation is as follows between the each several part: axle sleeve 1 is tightened on the high pressure kettle cover 11, clamping nut 7 is installed by screw thread in axle sleeve 1 top, tensile axis 2 reaches autoclave in-draw sample by clamping nut 7 and axle sleeve 1 endoporus, realize motive seal by O RunddichtringO I4 between tensile axis 2 and the axle sleeve 1, tensile axis 2 outsides are provided with tensile axis convex 12; Two grooves are offered in the position that needs in axle sleeve 1 outside to cool off, respectively put an O RunddichtringO II13 in two grooves, cooling jacket 3 is pushed into position with O-ring seal II13 fitted seal by axle sleeve 1, one end of cooling jacket 3 is crimped on the axle sleeve convex 14 in axle sleeve 1 outside, and the other end is fixing by hold-doun nut 5; Spring 9 be equipped with dual mode:
(1) as shown in Figure 2, place packing ring 8, spring 9, the packing ring 8 that is set in tensile axis 2 successively on the tensile axis convex 12 of tensile axis 2, clamping nut 7 is by tensile axis 2 packing washers and spring.
(2) as shown in Figure 3, on the tensile axis convex 12 of tensile axis 2, place block 6, clamping nut 7 is spun on the axle sleeve 1 by tensile axis 2, at clamping nut 7 tops, place packing ring 8, spring 9, packing ring 8, the afterburning piece 10 that is set in tensile axis 2 successively, afterburning piece 10 is by tensile axis 2 packing washers and spring.
Stretching device installation steps of the present invention are as follows:
1, axle sleeve 1 is screwed on the high pressure kettle cover 11 respective threads holes, all moments will be suitably to guarantee sealing;
2, the groove that matches with cooling jacket 3 at axle sleeve 1 is loaded onto O RunddichtringO II13, again cooling jacket 3 is pushed corresponding position, and hold-doun nut 5 is screwed in cooling jacket 3 top positions, connects chilled water inlet pipe 15 and cooling water outlet tube 16 then on cooling jacket 3;
3, the groove at tensile axis 2 puts O RunddichtringO I4, tensile axis 2 is inserted in the axle sleeve 1 from top to bottom lentamente again, connects the anchor clamps that install the stretching style in the lower end that tensile axis 2 stretches out;
4, clamping nut 7 is screwed in axle sleeve 1 top by tensile axis 2, this moment, stretching device installed.
When to make 9 pairs of tensile axis of spring 2 produce compressions, when reducing power that pressure differential produces, on the tensile axis convex 12 of tensile axis 2, place packing ring 8, spring 9, packing ring 8 successively, then clamping nut 7 is passed through tensile axis 2 packing washers 8 and spring 9, rotatably compress nut 7 up to reaching required load with boosting-rod.
In the time will making 9 pairs of tensile axis of spring 2 produce stretching action, the increase load that pressure differential produced, earlier be inserted in block 6 from the top of tensile axis 2, up to contacting with tensile axis convex 12 on the tensile axis 2, clamping nut 7 is spun on the axle sleeve 1 by tensile axis 2, on clamping nut 7, put packing ring 8, spring 9, packing ring 8 successively, then afterburning piece 10 is spun on packing washer 8 and spring 9 on the tensile axis 2, is enclosed within afterburning rotation the on the afterburning piece 10 with boosting-rod again up to reaching required load.
Embodiment
In an embodiment, liquid in the autoclave is remained on about 11MPa, temperature is heated between 270 ℃ to 316 ℃, used sample is the sheet tensile sample, duration is about 16 hours, and problems such as seal leakage do not appear in equipment operation safety and stability in the whole experiment.
Tensile axis acts on advocating on the sample and will be produced by the pressure reduction of high pressure in the autoclave and external atmosphere pressure, and the size of this part power equals pressure reduction and the long-pending product of axle sleeve inner headed face.Dynamic seal (packing) between tensile axis and the axle sleeve is realized by the O RunddichtringO, general O RunddichtringO maximum operation (service) temperature is about 200 ℃, and the high pressure temperature in the kettle is about 300 ℃, institute thinks and guarantees that the O RunddichtringO can long-term stable operation, and a cooling jacket close-fitting with it is housed on axle sleeve; One intake-outlet is respectively arranged on the cooling jacket, and cooling water flow can effectively reduce the temperature in the axle sleeve behind cooling jacket.
In the time will reducing the fixed load that is produced by the autoclave inner high voltage, the available clamping nut compression spring that is spun on the axle sleeve, and the other end of spring acts on the tensile axis convex to downward power of axle, the former length of spring is 7cm, elasticity coefficient is 400N/cm, when spring was compressed 2cm, the power that tensile axis acts on the sample was 1.2kN.
In the time will increasing the fixed load that is produced by the autoclave inner high voltage, the available afterburning piece compression spring that is spun on the tensile axis, and the other end of spring acts on the clamping nut that is spun on the axle sleeve, at this moment spring gives axle a power that makes progress by acting on afterburning piece, when spring was compressed 2cm, the power that tensile axis acts on the sample was 2.8kN.
When spring action on afterburning piece when increasing load, for preventing that sample from being broken the after stretching axle and being released sealing station by interior pressure and cause that solution leaks in the autoclave, between tensile axis convex and clamping nut, placed the block of certain altitude; And when spring action was on the tensile axis convex, this situation then can not occur.
Claims (3)
1. device of realizing under the high temperature and high pressure environment loading, it is characterized in that: this device comprises axle sleeve (1), tensile axis (2), cooling jacket (3), O RunddichtringO I (4), hold-doun nut (5), clamping nut (7), axle sleeve (1) is tightened on the high pressure kettle cover (11), clamping nut (7) is installed by screw thread in axle sleeve (1) top, tensile axis (2) reaches in the autoclave by the endoporus of clamping nut (7) and axle sleeve (1), pass through O RunddichtringO I (4) motive seal between tensile axis (2) and the axle sleeve (1), tensile axis (2) outside is provided with tensile axis convex (12), be set with cooling jacket (3) in axle sleeve (1) outside, one end of cooling jacket (3) is crimped on the axle sleeve convex (14) in axle sleeve (1) outside, and the other end of cooling jacket (3) is fixing by hold-doun nut (5);
When to make spring (9) to tensile axis (2) produce compression, when reducing power that pressure differential produces, go up at the tensile axis convex (12) of tensile axis (2) successively and place packing ring (8), spring (9), packing ring (8), then clamping nut (7) is passed through tensile axis (2) packing washer (8) and spring (9), rotatably compress nut (7) up to reaching required load with boosting-rod;
When making spring (9) that tensile axis (2) is produced stretching action, when increasing the load that pressure differential produced, earlier be inserted in block (6) from the top of tensile axis (2), up to contacting with tensile axis convex (12) on the tensile axis (2), clamping nut (7) is spun on the axle sleeve (1) by tensile axis (2), on clamping nut (7), put packing ring (8) successively, spring (9), packing ring (8), then afterburning piece (10) is spun on tensile axis (2) and goes up packing washer (8) and spring (9), be enclosed within afterburning piece (10) with boosting-rod again and go up afterburning rotation up to reaching required load;
The temperature range of High Temperature High Pressure is a normal temperature-300 ℃, and the pressure limit of High Temperature High Pressure is normal pressure-20MPa.
2. according to the device that loads under the described realization high temperature and high pressure environment of claim 1, it is characterized in that: offer two grooves in the position that axle sleeve (1) outside needs to cool off, respectively put an O RunddichtringO II (13) in two grooves, seal by O-ring seal II (13) between cooling jacket (3) and the axle sleeve (1).
3. according to the application of the device of loading down of the described realization high temperature and high pressure environment of claim 1, it is characterized in that step is as follows:
(1) axle sleeve is screwed on the high pressure kettle cover respective threads hole;
(2) groove that matches with cooling jacket at axle sleeve is loaded onto O RunddichtringO II, cooling jacket is pushed corresponding position again, and hold-doun nut is screwed in the cooling jacket top position, connects chilled water inlet pipe and cooling water outlet tube then on cooling jacket;
(3) groove at tensile axis puts O RunddichtringO I, tensile axis is inserted in the axle sleeve from top to bottom again, connects the anchor clamps that install tensile sample in the lower end that tensile axis stretches out;
(4) clamping nut is screwed in the axle sleeve top by tensile axis, this moment, stretching device installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102287119A CN101477003B (en) | 2008-11-12 | 2008-11-12 | Apparatus for loading in high-temperature high-pressure surroundings and its use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102287119A CN101477003B (en) | 2008-11-12 | 2008-11-12 | Apparatus for loading in high-temperature high-pressure surroundings and its use |
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| Publication Number | Publication Date |
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| CN101477003A CN101477003A (en) | 2009-07-08 |
| CN101477003B true CN101477003B (en) | 2010-12-08 |
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| CN2008102287119A Active CN101477003B (en) | 2008-11-12 | 2008-11-12 | Apparatus for loading in high-temperature high-pressure surroundings and its use |
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| CN102346114B (en) * | 2010-07-30 | 2013-10-16 | 中国科学院金属研究所 | Corrosion fatigue test apparatus with high temperature and high pressure circulating water |
| CN102928285A (en) * | 2012-11-07 | 2013-02-13 | 中钢集团洛阳耐火材料研究院有限公司 | Dynamic seal force valve transmission system for high-temperature mechanics testing machine to apply loads |
| CN103454012B (en) * | 2013-08-21 | 2015-05-13 | 中国科学院寒区旱区环境与工程研究所 | Device for measuring internal temperature of sample in process of low-temperature triaxial mechanical testing |
| CN104677722B (en) * | 2013-11-30 | 2017-08-25 | 中国科学院金属研究所 | A kind of high temperature and high pressure kettle loading device |
| CN106501073B (en) * | 2016-12-22 | 2023-12-19 | 华能国际电力股份有限公司 | Loading device with external pressure-guiding pressure balance structure and loading method |
| CN107192662A (en) * | 2017-07-10 | 2017-09-22 | 上海凯尔孚应力腐蚀试验设备有限公司 | A kind of sealing guide frame suitable for high temperature and high pressure kettle |
| CN107703014B (en) * | 2017-11-03 | 2024-04-09 | 岭东核电有限公司 | Impact abrasion tester for high-temperature and high-pressure environment |
| CN112303233A (en) * | 2020-05-13 | 2021-02-02 | 襄阳博亚精工装备股份有限公司 | High temperature resistant, resistant high pressure gas moves cauldron body of seal structure |
| CN112284898B (en) * | 2020-10-16 | 2023-03-24 | 李旋 | Stress corrosion simulation and in-situ observation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206148A (en) * | 2007-12-17 | 2008-06-25 | 南昌航空大学 | Method for correct measurement of hyperthermia stress-strain |
| CN101285746A (en) * | 2008-05-05 | 2008-10-15 | 北京科技大学 | Device for measuring corrosion products film dynamic performance |
| CN201285358Y (en) * | 2008-11-12 | 2009-08-05 | 中国科学院金属研究所 | Apparatus for implementing loading under high temperature high pressure environment |
-
2008
- 2008-11-12 CN CN2008102287119A patent/CN101477003B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206148A (en) * | 2007-12-17 | 2008-06-25 | 南昌航空大学 | Method for correct measurement of hyperthermia stress-strain |
| CN101285746A (en) * | 2008-05-05 | 2008-10-15 | 北京科技大学 | Device for measuring corrosion products film dynamic performance |
| CN201285358Y (en) * | 2008-11-12 | 2009-08-05 | 中国科学院金属研究所 | Apparatus for implementing loading under high temperature high pressure environment |
Non-Patent Citations (1)
| Title |
|---|
| 高欣等.高温高压水环境中腐蚀产物膜的研究现状.《腐蚀科学与防护技术》.2007,第27卷(第2期),110-113. * |
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| CN101477003A (en) | 2009-07-08 |
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