CN206488986U - A kind of loading device with outside impulse formula pressure balancing structure - Google Patents
A kind of loading device with outside impulse formula pressure balancing structure Download PDFInfo
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- CN206488986U CN206488986U CN201621419787.6U CN201621419787U CN206488986U CN 206488986 U CN206488986 U CN 206488986U CN 201621419787 U CN201621419787 U CN 201621419787U CN 206488986 U CN206488986 U CN 206488986U
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- pressure
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- pressure balancing
- balancing structure
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Abstract
The utility model discloses a kind of loading device with outside impulse formula pressure balancing structure, the loading device bag includes sealing cooling structure, pressure balancing structure, connecting screw rod, loading axis, loading machine attachment structure and outside impulse structure.One end of sealing cooling structure is tightly connected with high pressure kettle cover, the other end is connected by one group of connecting screw rod with pressure balance mechanism, loading axis through sealing cooling structure and pressure balancing structure inside, loading machine attachment structure one end is screwed with loading axis to be connected, the other end connects loading machine, outside impulse structure one end connects the tracting pressuring hole of pressure balancing structure, the other end is connected with autoclave entrance or outlet, so that pressure is equal with the pressure in pressure balancing structure in autoclave, the harmful stress in automotive resistance loading axis in autoclave produced by pressure.It is compared with the prior art, the utility model disclosure satisfy that synergistic effect test requirements document in various high temperature and high pressure environments.
Description
Technical field：
The utility model belongs to metal material and research field is tested in high temperature and high pressure environment, and in particular to one kind is with outer
The loading device of portion's impulse formula pressure balancing structure.
Background technology：
Metal material in high temperature and high pressure environment synergistic effect cracking (such as stress corrosion, corrosion fatigue) be
The major issue of many field faces.Typical such as nuclear power station circulation loop and steam generator heat-transfer pipe, thermal power station's boiler water
Cold wall, steam turbine metal part, pressure vessel of petrochemical industry etc., all often because stress corrosion occurs for material or corrodes tired
Labor and cause security incident, so, simulate high temperature and high pressure environment using autoclave in the lab and study the power of metal material
Learn chemical interaction problem significant.It is existing and traditional force snesor can not be arranged in experiment autoclave
The load that machine is loaded in technology is delivered to the inside of autoclave by loading axis, the load value that sample is born by autoclave outside
The force sensor measuring in portion.However, now power sensing measurement value is not loaded into the real load on sample, to expect loading
Real load on sample, in addition it is also necessary to remove the static(al) that autoclave internal pressure is acted in loading axis.When actually being tested,
When specimen size is smaller, either the strength of materials is relatively low or during higher autoclave pressure, autoclave internal pressure applies to loading axis
Load can be larger, has a strong impact on the accuracy of result of the test.
In order to balance harmful pulling force produced by autoclave internal pressure in process of the test, Japanese Dong Shen companies devise one kind
The autoclave loading device with hollow type pressure balancing structure is (referring to Japanese utility model patents under high temperature and high pressure environment：
1219480).Its general principle is as follows：Loading axis is provided with impulse centre bore, and pressure in autoclave is introduced into pressure balance chamber,
Then both internal pressures are equal.A diameter of d that loading axis is stretched into autoclave, loading axis interlude is a diameter ofThen load
Axle interlude cross-sectional area is equal to the area that twice of loading axis gos deep into autoclave end, and both differences are exactly equal to loading axis deeply height
The area at kettle end is pressed, now, the power that pressure balance chamber internal pressure is acted on the loading axis interlude shaft shoulder is exactly equal in autoclave
The power acted in loading axis is pressed, both mutually balance counteracting, so as to eliminate automatically harmful produced by pressure in autoclave
Power.
Although loading device with hollow type pressure balancing structure solves test button load in autoclave and accurately surveys
The problem of amount, but there is also following drawback for the method：First, loading axis is needed in center drilling deep hole, when loading axis is longer or straight
When footpath is smaller, process extremely difficult；Secondly, 90 degree of loading axis centre-drilling hole needs are changed direction, and loading axis processing is difficult once
Loading axis is divided into two sections in shaping, usual process to process respectively, afterwards by being welded to connect, weld defect can cause to add
The reduction of axle strength reliability is carried, finally, this loading device requires very high to the centering between loading axis and each part, once
It is bad in centering, huge frictional force can be produced, causes loading axis or miscellaneous part to damage, and also the device is in loading axis
Three sets of sealing rings are mounted with for loading axis dynamic sealing, changing sealing ring needs a large amount of operations, and can increase system certainly
The friction of body, causes test load measuring result error larger.
Utility model content：
The purpose of this utility model be in order to overcome the above drawback under existing high temperature and high pressure environment in loading technique there is provided
A kind of loading device with outside impulse formula pressure balancing structure.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that to realize：
A kind of loading device with outside impulse formula pressure balancing structure, including sealing cooling structure, pressure balance knot
Structure, connecting screw rod, loading axis, loading machine attachment structure and outside impulse structure；Wherein, one end of sealing cooling structure and high pressure
Kettle cover is tightly connected, and the other end is connected by connecting screw rod with pressure balance mechanism, loading axis through sealing cooling structure and
Inside pressure balancing structure, loading machine attachment structure one end is screwed with loading axis to be connected, and other end connection loading machine is outside
Impulse structure one end connects the tracting pressuring hole of pressure balancing structure, and the other end is connected with autoclave entrance threeway so that in autoclave
Pressure is equal with the pressure in pressure balancing structure, the harmful stress in automotive resistance autoclave produced by pressure.
The sealing cooling structure includes axle sleeve, air-cooled vanes, sealing ring I, axle sleeve cover plate and sealing bolt；Wherein, institute
State axle sleeve autoclave be tightened on by screw thread and cover, it, which is externally provided with multistage air-cooled vanes, is used to cool down, the axle sleeve with it is described plus
Connected between load axle by the dynamic sealing of sealing ring I, the axle sleeve cover plate is affixed by sealing bolt and the axle sleeve.
The pressure balancing structure includes pressure balance barrel, pressure balance cover plate, sealing ring II, pressure balance chamber and pressure
Dynamic balance chamber sealing bolt；Wherein, connected between the pressure balance barrel and the loading axis by the dynamic sealing of sealing ring II, institute
State pressure balance cover plate with it is affixed by the pressure balance chamber sealing bolt and pressure balance barrel.
It is threadedly coupled between the sealing cooling structure and the pressure balancing structure by one group of connecting screw rod.
The loading machine attachment structure includes loading frame, Anti-slip nut loading machine jointing；Wherein, the loading frame one
End is threadedly coupled with the loading axis, is fixed using the Anti-slip nut, and the other end connects the carrier aircraft jointing.
The pressure balance barrel side of the pressure balancing structure is provided with tracting pressuring hole, impulse joint one end and the pressure balance
Bucket thread seal connection, the other end is tightly connected with metal pressure guiding pipe by metal ferrule, the other end and the height of metal pressure guiding pipe
Pressure kettle porch threeway is tightly connected by metal ferrule so that pressure is with the pressure phase in pressure balancing structure in autoclave
Deng.
The loading axis is arranged on the Baltimore groove of loading axis with being provided with Baltimore groove, the sealing ring I at the axle sleeve cooperation
It is interior；The loading axis is arranged on the spill of loading axis with being provided with Baltimore groove, the sealing ring II at the pressure balance barrel cooperation
In groove.
Compared with prior art, the beneficial effects of the utility model are：
1st, greatly simplified in the utility model device without opening centre bore in loading axis or carrying out being loading axis welding
The process of loading axis, while improve the strength reliability and service life of loading axis.
2nd, the utility model uses the sealing ring in outside impulse formula pressure balancing structure, loading axis to be subtracted by original three groups
Less to two groups, sealing ring replacement operation is simplified, while also reducing the frictional force of system itself so that load measuring results are more
Plus it is accurate.
3rd, the utility model is passed through using outside impulse formula pressure balancing structure, pressure balancing structure and sealing cooling structure
Outside impulse structure connection, greatly reduces the centering requirement between loading axis and each part, it is easy to install and safeguard.
In summary, the utility model is ingenious in design, has a wide range of application, and is mountable to the common various high temperature in laboratory high
The testing machine in pressure ring border, including the slow tensile stress etching testing machine of HTHP, HTHP constant load stress corrosion (cracking) test machine,
High temperature pressure corrosion fatigue tester etc., sample load can be accurately measured in real time.
Brief description of the drawings：
Fig. 1 is a kind of front view of the loading device with outside impulse formula pressure balancing structure described in utility model.
Fig. 2 is the loading frame side view local with loading axis link position.
In figure：101 be axle sleeve；102 be air-cooled vanes；103 be sealing ring I；104 be axle sleeve cover plate；105 sleeve sealing spiral shells
Bolt；106 be connecting screw rod；107 be loading axis；108 be pressure balance barrel；109 be pressure balance cover plate；110 is flat for pressure
Weigh bucket sealing bolt；111 be sealing ring II；112 be pressure balance chamber；113 be loading frame, and 114 be Anti-slip nut, and 115 be to add
Carrier aircraft jointing；116 be metal pressure guiding pipe, and 117 be impulse joint, and 118 be high pressure kettle cover.
Embodiment：
The utility model is described in further details below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of loading device with outside impulse formula pressure balancing structure of the utility model, including sealing
Cooling structure, pressure balancing structure, connecting screw rod, loading axis, loading machine attachment structure and outside impulse structure.It is specific that step is installed
It is rapid as follows：
Sealing cooling structure includes axle sleeve 101, air-cooled vanes 102, sealing ring I 103, axle sleeve cover plate 104 and sealing bolt
105.Axle sleeve 101 is tightened on high pressure kettle cover 118, in the groove that sealing ring I 103 is arranged on to loading axis 107, by loading axis
Be slowly pushed into axle sleeve 101, behind the position for regulating loading axis, mounting sleeve cover plate 104, and with sealing bolt 105 by its with
Axle sleeve 101 is affixed.
Loading frame 113 is installed in loading axis 107, and fixed the two relative position with Anti-slip nut 114.
In the groove that sealing ring II 111 is arranged on to loading axis 107, pressure balance cover plate 109 and pressure are put down successively
Weighing apparatus bucket 108 is set in loading axis, and with pressure balance barrel sealing bolt 110 that both are affixed.Adjust pressure balancing structure and
The relative position of cooling structure is sealed, the two is fixedly connected with using one group of connecting screw rod 106.Fig. 2 is loading frame and loading axis
The local side view of link position, sealing bolt 105 and connecting screw rod 106 and loads the relative position of frame 113 as seen from the figure.Even
106 4 90 degree of intervals of screw rod are connect to arrange.Impulse joint 117 is tightened on pressure balance barrel 108, by metal pressure guiding pipe one end
Impulse joint 117 is inserted, is tightly connected using metal ferrule, by the three of metal pressure guiding pipe one end and autoclave entrance or exit
Lead to and connect so that the pressure of pressure pot pressure balance intracavitary is equal in autoclave.In process of the test, because loading axis 107 is stretched
Enter autoclave one end identical with the cross-sectional area positioned at pressure balance intracavitary one end, therefore the internal pressure of pressure balance chamber 112 is acted on
The power of loading axis 107 is exactly equal to the power that autoclave internal pressure is acted in loading axis, and both mutually balance counteracting, autobalance
Power in autoclave produced by pressure.Outside experiment loading machine is connected by loading machine attachment structure with loading axis, now, outside
The load that portion's loading machine is loaded is equal with the load in loading axis, as real load suffered by sample.
The utility model is ingenious in design, has a wide range of application, and is mountable to the common various high temperature and high pressure environments in laboratory
Testing machine, including the slow tensile stress etching testing machine of HTHP, HTHP constant load stress corrosion (cracking) test machine, HTHP
Corrosion fatigue testing machine etc., sample load can be accurately measured in real time.
Claims (7)
1. a kind of loading device with outside impulse formula pressure balancing structure, it is characterised in that including sealing cooling structure, pressure
Dynamic balance structure, connecting screw rod, loading axis, loading machine attachment structure and outside impulse structure；Wherein：
One end of sealing cooling structure is tightly connected with high pressure kettle cover, and the other end passes through one group of connecting screw rod and pressure balance mechanism
Connection, loading axis loads machine attachment structure one end and loading axis spiral shell through sealing inside cooling structure and pressure balancing structure
Line is fixedly connected, other end connection loading machine, and outside impulse structure one end connects the tracting pressuring hole of pressure balancing structure, the other end with
Autoclave entrance or outlet threeway connection so that pressure is equal with the pressure in pressure balancing structure in autoclave, automotive resistance
Harmful stress in loading axis in autoclave produced by pressure.
2. a kind of loading device with outside impulse formula pressure balancing structure according to claim 1, it is characterised in that
The sealing cooling structure includes axle sleeve (101), air-cooled vanes (102), sealing ring I (103), axle sleeve cover plate (104) and sealing
Bolt (105)；Wherein, the axle sleeve (101) is tightened on high pressure kettle cover (118), and it is externally provided with multistage air-cooled vanes (102) use
In cooling, it is connected between the axle sleeve (101) and the loading axis (107) by sealing ring I (103) dynamic sealing, the axle sleeve
Cover plate (104) is affixed by sealing bolt (105) and the axle sleeve (101).
3. a kind of loading device with outside impulse formula pressure balancing structure according to claim 2, it is characterised in that
The pressure balancing structure includes pressure balance barrel (108), pressure balance cover plate (109), pressure balance chamber sealing bolt
(110), sealing ring II (111), pressure balance chamber (112)；Wherein, the pressure balance barrel (108) and the loading axis (107)
Between by sealing ring II (111) dynamic sealing connect, the pressure balance cover plate (109) with it is close by the pressure balance chamber
Seal bolt (110) and pressure balance barrel (108) is affixed.
4. a kind of loading device with outside impulse formula pressure balancing structure according to claim 1, it is characterised in that
Connected between the sealing cooling structure and the pressure balancing structure by one group of connecting screw rod (106).
5. a kind of loading device with outside impulse formula pressure balancing structure according to claim 1, it is characterised in that
The loading machine attachment structure includes loading frame (113), Anti-slip nut (114) loading machine jointing (115)；Wherein, it is described
Loading frame (113) one end is threadedly coupled with the loading axis (107), fixed using the Anti-slip nut (114), other end connection
The carrier aircraft jointing (115).
6. a kind of loading device with outside impulse formula pressure balancing structure according to claim 3, it is characterised in that
Pressure balance barrel (108) side of the pressure balancing structure is provided with tracting pressuring hole, and impulse joint (117) one end is put down with the pressure
Bucket (108) thread seal that weighs is connected, and the other end is tightly connected with metal pressure guiding pipe (116) by metal ferrule, metal pressure guiding pipe
(116) the other end is tightly connected with the threeway of autoclave porch by metal ferrule so that pressure is flat with pressure in autoclave
Pressure in the structure that weighs is equal.
7. a kind of loading device with outside impulse formula pressure balancing structure according to claim 3, the loading axis
(107) with being provided with Baltimore groove at the axle sleeve (101) cooperation, the sealing ring I (103) is arranged in the Baltimore groove of loading axis；
The loading axis (107) at the pressure balance barrel (108) cooperation with being provided with Baltimore groove, and the sealing ring II (111) is arranged on
In the Baltimore groove of loading axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621419787.6U CN206488986U (en) | 2016-12-22 | 2016-12-22 | A kind of loading device with outside impulse formula pressure balancing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621419787.6U CN206488986U (en) | 2016-12-22 | 2016-12-22 | A kind of loading device with outside impulse formula pressure balancing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206488986U true CN206488986U (en) | 2017-09-12 |
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ID=59770444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621419787.6U Active CN206488986U (en) | 2016-12-22 | 2016-12-22 | A kind of loading device with outside impulse formula pressure balancing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501073A (en) * | 2016-12-22 | 2017-03-15 | 华能国际电力股份有限公司 | A kind of charger and loading method with outside impulse formula pressure balancing structure |
-
2016
- 2016-12-22 CN CN201621419787.6U patent/CN206488986U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501073A (en) * | 2016-12-22 | 2017-03-15 | 华能国际电力股份有限公司 | A kind of charger and loading method with outside impulse formula pressure balancing structure |
| 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 |
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