CN208420319U - Ground simulation test device for sealing drum - Google Patents
Ground simulation test device for sealing drum Download PDFInfo
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- CN208420319U CN208420319U CN201820950419.7U CN201820950419U CN208420319U CN 208420319 U CN208420319 U CN 208420319U CN 201820950419 U CN201820950419 U CN 201820950419U CN 208420319 U CN208420319 U CN 208420319U
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Abstract
This application discloses a kind of ground simulation test devices for sealing drum, are related to technical field of sealing technology.The device is for testing sealing performance of the sealing drum under high temperature and condition of high voltage, including support component, pushing component, test suite and heating mantle.Support component is fixed at ground, is used to support other assemblies.The top that component is mounted on support component is pushed, for providing axial force and it being made uniformly to act on the upper surface of sealing drum.Test suite is mounted on the lower part of support component, for installing sealing drum, for realizing the setting of sealing drum with the cooperation of pushing component, and is used to at setting sealing drum suppress, to test the sealing performance of sealing drum under high pressure.Heating mantle is mounted on the outside of the test suite, for heating test suite, to test the sealing performance of sealing drum at high temperature.The application can test sealing performance of the sealing drum under high-temperature and high-pressure conditions by above structure, and then guarantee the outgoing of sealing drum.
Description
Technical field
This application involves technical field of sealing technology, more particularly to a kind of ground simulation test device for sealing drum.
Background technique
Sealing drum is a kind of sealing element generally used in industrial products, and sealing drum is generally made of rubber type of material.
It is also different to the performance requirement of sealing drum according to the difference of its application field.Below by taking downhole tool packer sealing cylinder as an example
It is illustrated:
Packer sealing cylinder is in heavy crude heat extraction using very extensive core component.Packer sealing cylinder uses at the scene
In the process, seat, deblocking flexibly, it is reliable, packer sealing cylinder deformed under the action of upper and lower pressure difference and high temperature it is small, persistently carry energy
Power is strong, can just play packing oil jacket annulus and guarantee the purpose that job execution is gone on smoothly.Therefore, packer sealing cylinder is in height
Sealability in warm, high pressure operating environment is to measure the key technical index of packer performance.
But the experimental rig of the sealing performance due to lacking high-temperature and high-pressure conditions lower seal cylinder leads to that envelope cannot be effectively ensured
Every the outgoing of device sealing drum, cause packer sealing cylinder fatigue resistance low, under the action of high temperature, high pressure, the short time
The problem of interior sealing drum damage, causes annular space poorly sealed, seal failure.Therefore, it is badly in need of developing one kind in high temperature, high-pressure section
The experimental rig of sealing drum sealability is checked under part.
Utility model content
Aiming to overcome that the above problem or at least being partially solved or extenuate for the application solves the above problems.
This application provides a kind of ground simulation test devices for sealing drum, for testing sealing drum in high temperature and height
Sealing performance under the conditions of pressure, comprising:
Support component is fixed or is placed at ground, is used to support other assemblies；
Component is pushed, the top of support component is mounted on, for providing axial force and acting on the axial force uniformly
In the upper surface of the sealing drum；
Test suite is mounted on the lower part of the support component, for installing the sealing drum, is used for and the pushing group
Part cooperation is used to at setting sealing drum suppress to realize the setting of the sealing drum, is existed with testing the sealing drum
Sealing performance under high pressure；With
Heating mantle is mounted on the outside of the test suite, for heating the test suite, to test the sealing drum
Sealing performance at high temperature.
Optionally, the support component includes:
Pedestal is used as installation foundation for fixing or being placed at ground；
Two studs, level is superimposed upon the base position and described two studs are in arranged for interval, every a pair of
The both ends of hook bolt are correspondingly provided with screw thread, and one end with nut is used for across the pedestal, each double end in each stud
The other end of bolt is used for across the pushing component；
Two adjusting nuts, corresponding to the other end of described two studs, for limiting the height of the support component
Spend position.
Optionally, the pushing component includes:
Top board is fixedly mounted at the support component, for providing opposition, is equipped with two in the top board
A is in spaced apart hole, and each hole is along the top board axially through correspondence is fixedly connected with a nut in each hole；
Pressing plate, positioned at the lower section of the top board, under external force can the relatively described top board move up or down,
For transmitting the opposition, the center of the pressing plate is equipped with the axial pressing plate through-hole of perforation；
Two jackscrews are meshed for the corresponding corresponding nut across two Kong Bingyu of the top board in it, with
Support the pressing plate；
Piston cylinder has the interface radially penetrated through, for connecting external pressure source component, for piston cylinder input
Fluid with pressure, the piston cylinder has piston rod, for transmitting pressure；
First pressing sleeve is located at below the piston cylinder, and is mounted on the test suite, for the axial force is equal
The even upper end surface for acting on the sealing drum；With
Pressing is accommodated in the pressing plate through-hole, is fixedly connected with the piston rod, can move down on the pressing plate through-hole
It is dynamic, to support the top board, it is made to generate reaction force, promotes the piston cylinder that first pressing sleeve is driven to move down compression institute
Sealing drum is stated, so that the sealing drum is bonded realization with the test suite setting.
Optionally, the external pressure source component includes hydraulic press and steel pipe, and one end connection of the steel pipe is described hydraulic
Machine, the other end of the steel pipe connect the interface of the piston cylinder, according to be provided on steel pipe described in fluid conveying direction needle-valve,
Ball valve and pressure gauge.
Optionally, the pushing component further includes pressure sensor, and the pressure sensor is located at below the pressing plate, with
The axial force size for pushing component is monitored, the center of the pressure sensor is equipped with the axial sensor through-hole of perforation, with
Accommodate the pressing.
Optionally, the test suite includes:
Seal sleeve is the staving of top end opening, bottom end seal, for accommodating the sealing drum, to test the sealing
The sealing performance of cylinder；With
Vertical shaft is fixedly connected at the bottom of the seal sleeve, and the vertical shaft is co-axially mounted with the sealing drum, described
Between the outer wall of vertical shaft and the inner wall of the seal sleeve formed annular space chamber, the vertical shaft for install the sealing drum and
The pushing component, the vertical shaft has boss, for limiting the axial position of the sealing drum；
Wherein, the pushing component generates axial force, compresses the sealing drum downwards, the sealing drum compressive deformation makes
The increase of its radial dimension is contacted with the inner wall of the seal sleeve, so that forming annular space sealing realizes setting, the seal sleeve
It is connected with interface close to bottom position, annular space chamber described in the orifice, the interface is for connecting external pressure source group
Part, to have the fluid of pressure for the intracavitary input of the annular space.
Optionally, the seal sleeve and the vertical shaft are fixedly connected as being threadedly coupled.
Optionally, the external pressure source component includes hydraulic press and steel pipe, and one end connection of the steel pipe is described hydraulic
Machine, the other end of the steel pipe connect the interface of the seal sleeve, excessive according to being provided on steel pipe described in fluid conveying direction
Safety valve, needle-valve, ball valve and pressure gauge are flowed, the overflow relief valve is used to ensure that the pressure of the annular space chamber to be no more than setting
Value.
Optionally, the ground simulation test device further includes elastic force compensation component, is arranged in the sealing drum
Above or below, it is mounted at the test suite, for carrying out elastic compensating to sealing drum flexibility decrease described under high temperature,
To ensure that the sealing of the sealing drum at high temperature is not failed.
Optionally, the test suite includes seal sleeve and vertical shaft, and the vertical shaft has boss, the elasticity force compensating
Component is arranged in the lower section of the sealing drum, and the elastic force compensation component includes sequentially being superimposed upon the lower section of the sealing drum
Second pressing sleeve and disc spring, the upper end and lower end of second pressing sleeve are respectively used to and the corresponding sealing drum and the disc spring phase
It supports, to prevent the disc spring from directly directly contacting with the sealing drum；Second pressing sleeve and the disc spring are covered described vertical
The outside of axis, the disc spring limit its axial position by the boss.
Optionally, the test suite includes seal sleeve and vertical shaft, and the pushing component includes piston cylinder, the elasticity
Force compensating component is arranged in the top of the sealing drum, and the elastic force compensation component includes being superimposed upon above the sealing drum
Guide sleeve and disc spring, the guide sleeve are covered in the outside of the vertical shaft, and the disc spring is covered in the outside of the guide sleeve, the dish
Spring is also used to support the piston.
The device is mounted on ground by support component by the ground simulation test device of the application, by pushing component
Axial force is provided, the setting of sealing drum is realized by pushing component and test suite cooperation, is setting by test suite
Sealing drum is suppressed, and realizes the performance test of condition of high voltage lower seal cylinder, is test suite heating by heating mantle, with simulation
Underground hot environment, the sealing performance of test sealing drum at high temperature under high pressure, and then guarantee the outgoing of sealing drum.
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.
Detailed description of the invention
Some specific embodiments of the application are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic structure according to the ground simulation test device for sealing drum of the application one embodiment
Figure；
Fig. 2 is the schematic structure according to the ground simulation test device for sealing drum of the application another embodiment
Figure；
Fig. 3 be according to this application involves vertical shaft outer wall and seal sleeve inner wall between formed annular space chamber position signal
Figure.
Each symbol indicates that meaning is as follows in figure:
A support component, B pushing component, C test suite, D annular space chamber,
1 ball valve, 2 pressure gauges, 3 pedestals, 4 vertical shafts, 5 disc springs, 6 first pressing sleeves, 7 sealing drums, 8 pressure sensors, 9 pressing plates,
10 studs, 11 jackscrews, 12 adjusting nuts, 13 top boards, 14 pressings, 15 piston cylinders, 16 second pressing sleeves, 17 heating mantles, 18
Seal sleeve, 19 overflow relief valves, 20 needle-valves, 21 steel pipes, 22 guide sleeves.
Specific embodiment
Fig. 1 is the schematic structure according to the ground simulation test device for sealing drum of the application one embodiment
Figure.A kind of ground simulation test device for sealing drum, for testing leakproofness of the sealing drum 7 under high temperature and condition of high voltage
Can, generality may include: support component A, push component B, test suite C and heating mantle 17.Wherein, support component A is fixed
Or be placed at ground, it is used to support other assemblies.The top that component B is mounted on support component A is pushed, for providing axial force
And the axial force is made uniformly to act on the upper surface of the sealing drum 7.Test suite C is mounted on the support component A's
It, for cooperating with the pushing component B to realize the setting of the sealing drum 7, is used in combination for installing the sealing drum 7 lower part
In to suppressing at setting sealing drum 7, to test the sealing performance of the sealing drum 7 under high pressure.Heating mantle 17 is mounted on
Simulation oil well temperature is carried out for heating the test suite C in the outside of the test suite C, to test the sealing drum 7 in height
Sealing performance under temperature.
The device is mounted on ground by support component A by the ground simulation test device of the application, by pushing component
B provides axial force, realizes the setting of sealing drum 7 by pushing component B and test suite C cooperation, is seat by test suite C
The sealing drum 7 of envelope is suppressed, and pressure may be, for example, 22MPa when specific implementation, realizes the performance test of condition of high voltage lower seal cylinder 7,
It is test suite C heating by heating mantle 17, to simulate underground hot environment, such as can detecte 350 DEG C of pressure of temperature
The sealing performance of 22MPa lower seal cylinder 7 at high temperature under high pressure.Therefore the application passes through work of the sealing drum in underground of simulation packer
Make state, to examine every the key technical indexes of the sealing drum 7 under the action of high temperature, high pressure, to ensure that sealing drum 7 goes out
The use quality of factory.
In the present embodiment, the support component A generally may include: 3, two studs 10 of pedestal and two adjustment
Nut 12.Pedestal 3 is used as installation foundation for fixing or being placed at ground.Two 10 levels of stud are superimposed upon described
At pedestal 3 and described two studs 10 are in arranged for interval, and the both ends of each stud 10 are correspondingly provided with screw thread, every a pair of
One end in hook bolt 10 with nut is used for across the pedestal 3, and the other end of each stud 10 is used under described
Press component B.Two adjusting nuts 12 correspond to the other end of described two studs 10, for limiting the support component A
Height and position.
In the present embodiment, the pushing component B generally may include: 13, two jackscrews 11 of top board, piston cylinder 15,
One pressing sleeve 6 and pressing 14.Wherein, top board 13 is fixedly mounted at the support component A, for providing opposition, institute
It states and is set in top board 13 there are two in spaced apart hole (not drawn in figure), each hole is passed through along the axial direction of the top board 13
Logical, correspondence is fixedly connected with a nut (not drawing in figure) in each hole.Pressing plate 9 is located at the lower section of the top board 13,
Under external force can the relatively described top board 13 move up or down, for transmitting the opposition, the pressing plate 9
Center is equipped with the axial pressing plate through-hole of perforation.Two jackscrews 11 are for corresponding across two Kong Bingyu of the top board 13 in it
Corresponding nut be meshed, to support the pressing plate 9.Piston cylinder 15 has the interface radially penetrated through, for connecting external pressure
Power source component, to have the fluid of pressure for the piston cylinder 15 input, the piston cylinder 15 has piston rod, for transmitting pressure
Power.Further, the external pressure source component at piston cylinder 15 includes hydraulic press (not drawing in figure) and steel pipe, the steel pipe
One end connects the hydraulic press, and the other end of the steel pipe connects the interface of the piston cylinder 15, according to fluid conveying direction institute
It states and is provided with needle-valve 20, ball valve 1 and pressure gauge 2 on steel pipe, wherein needle-valve 20 and ball valve 1 are for controlling Fluid Volume, pressure gauge 2
For detecting the pressure of fluid.First pressing sleeve 6 is located at 15 lower section of piston cylinder, and is mounted on the test suite C, is used for
The axial force is uniformly acted on to the upper end surface of the sealing drum 7.Pressing 14 is accommodated in the pressing plate through-hole, with institute
It states piston rod to be fixedly connected, can be moved up and down along the pressing plate through-hole, to support the top board 13, it is made to generate reaction
Power promotes the piston cylinder 15 that first pressing sleeve 6 is driven to move down the compression sealing drum 7, makes the sealing drum 7 and the survey
It is setting to try component C fitting realization.
Further, in this embodiment the pushing component B further includes pressure sensor 8, the pressure sensor 8
In 9 lower section of the pressing plate, i.e., respectively and below pressing plate 9 and the upper surface of piston cylinder 15 is in contact, to monitor the pushing component B
Axial force size, remotely can intuitively monitor the size of axial force (setting power).When it is implemented, pressure sensor 8 can
To be spoke type weighing pressure sensor.
The center of the pressure sensor 8 is equipped with the axial sensor through-hole of perforation, to accommodate the pressing 14.The pressure
Pin 14 is movable in the sensor through-hole and pressing plate through-hole.
Fig. 3 be according to this application involves vertical shaft outer wall and seal sleeve inner wall between formed annular space chamber position signal
Figure.For the present embodiment as shown in Figure 1, referring also to Fig. 3, the test suite C includes: seal sleeve 18 and vertical shaft 4.Seal sleeve
18 be the staving of top end opening, bottom end seal, for accommodating the sealing drum 7, to test the sealing performance of the sealing drum 7.
Vertical shaft 4 is fixedly connected at the bottom of the seal sleeve 18, and the vertical shaft 4 is co-axially mounted with the seal sleeve 18.Such as figure
Shown in 3, ring cavity D is formed between the outer wall of the vertical shaft 4 and the inner wall of the seal sleeve 18, the vertical shaft 4 is for installing
The sealing drum 7 and the pushing component B, the vertical shaft 4 has boss, for limiting the axial position of the sealing drum 7.
Wherein, the pushing component B generates axial force, compresses the sealing drum 7 downwards, 7 compressive deformation of sealing drum makes its diameter
Increase to size and is contacted with the inner wall of the seal sleeve 18, so that a part sealing realization by ring cavity D is setting, it is described close
Big envelope cylinder 18 is connected with interface close to bottom position, ring cavity D described in the orifice, and the interface is for connecting outside
Pressure source component, to have the fluid of pressure for ring cavity D input, to form high pressure described in high temperature and pressure detection.
In the present embodiment, the external pressure source component at seal sleeve 18 includes hydraulic press and steel pipe 21, and one end of the steel pipe 21 connects
The hydraulic press is connect, the other end of the steel pipe 21 connects the interface of the seal sleeve 18, according to described in fluid conveying direction
Overflow relief valve 19, needle-valve 20, ball valve 1 and pressure gauge 2 are provided on steel pipe 21, the overflow relief valve 19 is described for ensuring
The pressure of seal chamber is no more than setting value, the needle-valve 20 and ball valve 1 for controlling Fluid Volume, and the pressure gauge 2 is for showing
Fluid pressure.
Further, in this embodiment the heating mantle 17 is in contact with the outer surface of seal sleeve 18.The sealing shroud
Cylinder 18 is fixedly connected as being threadedly coupled with the vertical shaft 4.7 sets of sealing drum on vertical shaft 4, the first 6 sets of pressing sleeve on vertical shaft 4,
First pressing sleeve 6 supports piston cylinder 15, and pressing 14 is fixedly connected with the piston rod of piston cylinder 15, pressure sensor 8 and 9 sets of pressing plate
On pressing 14, top board 13 is mounted at stud 10, limits top board 13 by stud 10 and adjusting nut 12
It cannot move axially.
Due to being declined when the elasticity of the seal sleeve 18 in packer at high temperature is compared with room temperature, to ensure at high temperature
The sealing of sealing drum 7 is not failed, and needs certain indemnifying measure to guarantee that the sealing of sealing drum 7 is not failed.
Based on this, in the present embodiment, the ground simulation test device further includes elastic force compensation component, is arranged in
It above or below the sealing drum 7, is mounted at the test suite C, to ensure the sealing of the sealing drum 7 at high temperature
It does not fail.
More specifically, the elastic force compensation component is arranged in the lower section of the sealing drum 7, the bullet in the present embodiment
Property force compensating component includes the second pressing sleeve 16 and disc spring 5 for being sequentially superimposed upon the lower section of the sealing drum 7, second pressing sleeve
16 upper end with the sealing drum 7 for offseting, and the lower end of second pressing sleeve 16 with the disc spring 5 for offseting, to prevent
The disc spring 5 is directly directly contacted with the sealing drum 7.This is because disc spring 5 itself is in bowl shaped structure, itself produce under stress
Raw deformation accumulation of energy, one side disc spring 5 and the smaller sealing drum 7 easy to cut of the direct contact position area of sealing drum 7, are on the other hand dish
The larger sealing drum 7 that will drive of 5 self-deformation of spring is deformed radially outward larger, cause between sealing drum 7 and vertical shaft 4 generate gap and
Seal failure.Second pressing sleeve 16 and the disc spring 5 are covered in the outside of the vertical shaft 4, and the disc spring 5 passes through the boss
Limit its axial position.In the present embodiment, the compressed ballistic properties of the disc spring 5 can effectively make up sealing drum 7 in high temperature
When flexibility decrease brought by sealing performance detrimental effect, so that it is guaranteed that the sealing of sealing drum 7 is not failed at high temperature.
Further, in this embodiment the disc spring 5 is in contact with 4 boss of vertical shaft and the second pressing sleeve 16.
As shown in Figure 1, the ground simulation test device of the application is for simulation oil field downhole packer in the present embodiment
Sealing drum 7 examines the experimental rig of 7 sealing effect of packer sealing cylinder under high temperature, high pressure, setting working condition.The ground
The course of work of simulation test device is as follows:
Setting procedure: it is suppressed, is made to the piston cylinder 15 being supported on the first pressing sleeve 6 by the hydraulic press at piston cylinder 15
The piston rod of piston cylinder 15 moves up, and the pressing being attached thereto 14 is driven to move up, and is moved up by pressing 14 and withstands on upper pressure
Below plate 13, according to active force and reaction force, promote piston cylinder 15 that the first pressing sleeve 6 is driven to move down.At piston cylinder 15
When 2 pressure of pressure gauge reaches 15MPa (setting force reaches 35 tons at this time), ball valve 1 and needle-valve 20 are closed.Sealing drum 7 due to by
The effect of axial compressive force increases radial diameter size, and the outer wall of sealing drum 7 is contacted with the inner wall of seal sleeve 18, to play
Annular space sealing function, this process are also drawn well envelope.Wherein, the piston cylinder 15 is after pressure release, in the distance that the jackscrew 11 limits
Interior, the power that setting force is supported the power of pressing plate 9 by jackscrew 11, disc spring 5 applies forms, when sealing drum 7 elasticity reduce after disc spring 5 into
Row compensates and maintains the dynamic equilibrium of the setting force.The pressing 14 is in contact with top board 13 and piston rod at work.
Cold have a try of ground simulator tests sealing performance detection process: after the completion of setting, to examine the close of sealing drum 7
Effect is sealed, high pressure water is injected to the lower half of Fig. 3 ring cavity D by the hydraulic press at seal sleeve 18, reaches requirement work pressure
The ball valve 1 and needle-valve 20 at seal sleeve 18 are closed after power such as 22MPa, pass through the pressure gauge 2 at observation seal sleeve 18
The size of changing value be can determine whether sealing drum 7 sealing effect how.
Sealing performance test under the high temperature of ground simulator, high pressure: the high temperature needed when heat examination can pass through heating mantle
17 realize.Such as the temperature of water temperature in ring cavity D is heated to 350 DEG C.During heating, it is controlled by overflow relief valve 19
Pressing pressure is in 22MPa.In the case where bottom part ring cavity D temperature maintains 350 DEG C, pressure is maintained at 22MPa, test period example
It such as can according to need holding 30 days.It is remained unchanged in this period such as temperature, if pressure maintenance is not dropped or decreasing value is not more than
Rated value, i.e., it is believed that sealing drum 7 can reach a high temperature, high pressure does not leak standard prescribed requirement and terminating to test.Wherein, to subtract
The balancing force of the variation of small sealing drum 7 setting power after underground is setting, compressed disc spring 5 is transmitted to by the second pressing sleeve 16
The lower part of sealing drum 7, so as to maintain setting power to be basically unchanged.
Fig. 2 is the schematic structure according to the ground simulation test device for sealing drum of the application another embodiment
Figure.The difference of the present embodiment and embodiment illustrated in fig. 1 is that the structure of elastic force compensation component and setting position are different.This reality
It applies in example, 7 sets of the sealing drum outsides in vertical shaft 4 and the boss positioning by vertical shaft 4.First pressing sleeve 6 be located at the top of sealing drum 7 and
It covers on the vertical shaft 4.
In the present embodiment, elastic force compensation component is arranged in the top of the sealing drum 7, positioned at the upper of the first pressing sleeve 6.
The elastic force compensation component includes the guide sleeve 22 and disc spring for being oriented to disc spring 5 for being superimposed upon 7 top of sealing drum
5,22 sets of the guide sleeve the vertical shaft 4 outside and connect with piston cylinder 15,5 sets of the disc spring is in the guide sleeve
22 outside, the disc spring 5 are also used to support the piston.In the present embodiment, the compressed ballistic properties of the disc spring 5 can
Effectively making up sealing drum 7, flexibility decrease is brought to sealing performance detrimental effect at high temperature, so that it is guaranteed that in high temperature
When sealing drum 7 sealing do not fail.
In the present embodiment, pushing component B further includes elastic force compensation component.
The course of work of the present embodiment:
Setting procedure: it is suppressed by the hydraulic press at piston cylinder 15 to the piston cylinder 15 being supported in disc spring 5, makes piston cylinder
15 piston rod moves up, and drives the pressing 14 being connected with piston rod to move up, withstands on top board 13 upwards by pressing 14
In the following, promoting piston cylinder 15 that disc spring 5 and the first pressing sleeve 6 is driven to move down, sealing drum 7 is compressed downwards.When 2 pressure of pressure gauge reaches
Ball valve 1 and needle-valve 20 when 15MPa (setting force reaches 35 tons at this time), at closure piston cylinder 15.Sealing drum 7 is due to by axial direction
The effect of pressure increases its radial diameter size, contacts with the inner wall of seal sleeve 18, so that annular space sealing function is played,
This process is also drawn well envelope.
Cold have a try of ground simulator tests sealing performance detection: after the completion of setting, for the annular space sealing for examining sealing drum 7
Effect, by the water injection machine at seal sleeve 18 to ring cavity D inject high pressure water, after reaching requirement operating pressure 22MPa, close
Ball valve 1 and needle-valve 20 are closed, sealing effect can intuitively be judged by the size of the changing value of the pressure gauge 2 at seal sleeve 18
How is fruit.
Sealing performance test under the high temperature of ground simulator, high pressure: the high temperature needed when heat examination can pass through heating mantle
17 realize.Such as the temperature of water temperature in ring cavity D is heated to 350 DEG C.During heating, it is controlled by overflow relief valve 19
Pressing pressure is in 22MPa.In the case where sealed bottom chamber temperature maintains 350 DEG C, pressure is maintained at 22MPa, test period is needed
It is kept for 30 days.Remained unchanged in this period such as temperature, if pressure maintenance is not dropped or decreasing value is no more than rated value, i.e., it is believed that
Sealing drum 7 can reach a high temperature, high pressure does not leak standard prescribed requirement simultaneously terminates to test.It wherein, is reduction sealing drum 7 in underground
The variation of setting power after setting, under the action of downward pressure, disc spring 5 is axial to be compressed under the guidance of guide sleeve 22.Compression
The balancing force of disc spring 5 afterwards is transmitted to the top of sealing drum 7 by the first pressing sleeve 6, so as to maintain setting power to be basically unchanged.
In addition, the ground simulation test device of the application can also be used in the pressure test up and down of sealing drum 7, fatigue test,
Removing seal for packer pull test, this embodiment is not repeated for above-mentioned test method.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of ground simulation test device for sealing drum, for testing sealing of the sealing drum under high temperature and condition of high voltage
Performance characterized by comprising
Support component is fixed or is placed at ground, is used to support other assemblies；
Component is pushed, the top of support component is mounted on, for providing axial force and the axial force being made uniformly to act on institute
State the upper surface of sealing drum；
Test suite is mounted on the lower part of the support component, for installing the sealing drum, for matching with the pushing component
It closes to realize the setting of the sealing drum, and is used to at setting sealing drum suppress, to test the sealing drum in high pressure
Under sealing performance；With
Heating mantle is mounted on the outside of the test suite, for heating the test suite, to test the sealing drum in height
Sealing performance under temperature.
2. ground simulation test device according to claim 1, which is characterized in that the support component includes:
Pedestal is used as installation foundation for fixing or being placed at ground；
Two studs, level is superimposed upon the base position and described two studs are in arranged for interval, each double end spiral shell
The both ends of bolt are correspondingly provided with screw thread, and one end with nut is used for across the pedestal, each stud in each stud
The other end be used for across the pushing component；
Two adjusting nuts, corresponding to the other end of described two studs, for limiting the height position of the support component
It sets.
3. ground simulation test device according to claim 1, which is characterized in that the pushing component includes:
Top board is fixedly mounted at the support component, for providing opposition, sets that there are two be in the top board
Spaced apart hole, each hole is along the top board axially through correspondence is fixedly connected with a nut in each hole；
Pressing plate, positioned at the lower section of the top board, under external force can the relatively described top board move up or down, be used for
The opposition is transmitted, the center of the pressing plate is equipped with the axial pressing plate through-hole of perforation；
Two jackscrews are meshed, to support for the corresponding corresponding nut across two Kong Bingyu of the top board in it
The pressing plate；
Piston cylinder has the interface radially penetrated through, for connecting external pressure source component, to have for piston cylinder input
The fluid of pressure, the piston cylinder has piston rod, for transmitting pressure；
First pressing sleeve is located at below the piston cylinder, and is mounted on the test suite, for the axial force is uniform
Act on the upper end surface of the sealing drum；With
Pressing is accommodated in the pressing plate through-hole, is fixedly connected with the piston rod, can move up and down along the pressing plate through-hole,
To support the top board, it is made to generate reaction force, promotes the piston cylinder that first pressing sleeve is driven to move down described in compression
Sealing drum makes the sealing drum be bonded realization with the test suite setting.
4. ground simulation test device according to claim 3, which is characterized in that the external pressure source component includes liquid
One end of press and steel pipe, the steel pipe connects the hydraulic press, and the other end of the steel pipe connects the interface of the piston cylinder,
According to being provided with needle-valve, ball valve and pressure gauge on steel pipe described in fluid conveying direction.
5. ground simulation test device according to claim 3, which is characterized in that the pushing component further includes that pressure passes
Sensor, the pressure sensor are located at below the pressing plate, and to monitor the axial force size for pushing component, the pressure is passed
The center of sensor is equipped with the axial sensor through-hole of perforation, to accommodate the pressing.
6. ground simulation test device according to claim 1, which is characterized in that the test suite includes:
Seal sleeve is the staving of top end opening, bottom end seal, for accommodating the sealing drum, to test the sealing drum
Sealing performance；With
Vertical shaft is fixedly connected at the bottom of the seal sleeve, and the vertical shaft is co-axially mounted with the seal sleeve, described vertical
Between the outer wall of axis and the inner wall of the seal sleeve formed annular space chamber, the vertical shaft for install the sealing drum and it is described under
Component is pressed, the vertical shaft has boss, for limiting the axial position of the sealing drum；
Wherein, the pushing component generates axial force, compresses the sealing drum downwards, the sealing drum compressive deformation makes its diameter
Increase to size and contacted with the inner wall of the seal sleeve, annular space sealing realization is setting, and the seal sleeve is close to be formed
Bottom position is connected with interface, annular space chamber described in the orifice, and the interface is used to connect external pressure source component, with
The fluid of pressure is had for the intracavitary input of the annular space.
7. ground simulation test device according to claim 6, which is characterized in that the external pressure source component includes liquid
One end of press and steel pipe, the steel pipe connects the hydraulic press, and the other end of the steel pipe connects connecing for the seal sleeve
Mouthful, according to being provided with overflow relief valve, needle-valve, ball valve and pressure gauge, the overflow safety on steel pipe described in fluid conveying direction
Valve is used to ensure that the pressure of the annular space chamber to be no more than setting value.
8. ground simulation test device described in any one of -7 according to claim 1, which is characterized in that further include that elastic force is mended
Component is repaid, is arranged in above or below the sealing drum, is mounted at the test suite, for described close under high temperature
Sealed tube flexibility decrease carries out elastic compensating, to ensure that the sealing of the sealing drum at high temperature is not failed.
9. ground simulation test device according to claim 8, which is characterized in that the test suite includes seal sleeve
And vertical shaft, the vertical shaft have boss, the elastic force compensation component is arranged in the lower section of the sealing drum, and the elastic force is mended
Repaying component includes the second pressing sleeve and disc spring for being sequentially superimposed upon the lower section of the sealing drum, the upper end and lower end of second pressing sleeve
It is respectively used to offset with the corresponding sealing drum and the disc spring, to prevent the disc spring from directly directly connecing with the sealing drum
Touching；Second pressing sleeve and the disc spring are covered in the outside of the vertical shaft, and the disc spring limits its axial direction by the boss
Position.
10. ground simulation test device according to claim 8, which is characterized in that the test suite includes sealing shroud
Cylinder and vertical shaft, the pushing component includes piston cylinder, and the elastic force compensation component is arranged in the top of the sealing drum, described
Elastic force compensation component includes the guide sleeve and disc spring being superimposed upon above the sealing drum, and the guide sleeve is covered in the vertical shaft
Outside, the disc spring are covered in the outside of the guide sleeve, and the disc spring is also used to support the piston.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820950419.7U CN208420319U (en) | 2018-06-20 | 2018-06-20 | Ground simulation test device for sealing drum |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820950419.7U CN208420319U (en) | 2018-06-20 | 2018-06-20 | Ground simulation test device for sealing drum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663176A (en) * | 2018-06-20 | 2018-10-16 | 天鼎联创密封技术（北京）有限公司 | Ground simulation test device for sealing drum |
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2018
- 2018-06-20 CN CN201820950419.7U patent/CN208420319U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663176A (en) * | 2018-06-20 | 2018-10-16 | 天鼎联创密封技术（北京）有限公司 | Ground simulation test device for sealing drum |
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