CN111796224A - Magnetic force testing device and system under pressure maintaining controller high temperature environment - Google Patents
Magnetic force testing device and system under pressure maintaining controller high temperature environment Download PDFInfo
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- CN111796224A CN111796224A CN202010621897.5A CN202010621897A CN111796224A CN 111796224 A CN111796224 A CN 111796224A CN 202010621897 A CN202010621897 A CN 202010621897A CN 111796224 A CN111796224 A CN 111796224A
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Abstract
The invention relates to a magnetic force testing device and a magnetic force testing system of a pressure maintaining controller in a high-temperature environment, which comprise a first force measuring device, a bracket, a distance measuring component, a heating device, a temperature sensor and a clamping mechanism for clamping a magnetic force seat, wherein the clamping mechanism is arranged on the bracket and is positioned above the force measuring device; the first force measuring device is used for measuring the upward acting force of the valve clack; the height of the clamping mechanism is adjustable, and the distance measurement component is used for measuring the height or displacement of the clamping mechanism; the heating device is used for heating the magnetic base, and the temperature sensor is used for measuring the temperature of the magnetic base. The invention can simulate a high-temperature environment when testing magnetic force, can be used for testing the magnitude of the magnetic force in the high-temperature environment and the relation between the magnetic force and the distance, can research the influence of high temperature on the magnetic force by comparing the relation between the magnetic force and the distance in the high-temperature environment and the normal-temperature environment, and has important significance on the research and the performance improvement of the pressure maintaining controller.
Description
Technical Field
The invention relates to the technical field of magnetic measurement equipment, in particular to a magnetic force testing device and a magnetic force testing system for a pressure maintaining controller in a high-temperature environment.
Background
An important process of a rock coring drilling machine in deep coring is pressure-maintaining coring, a pressure-maintaining core is a precious sample in rock mechanics research, how to realize efficient pressure maintaining of the drilling machine is a development direction of the coring drilling machine, China makes many researches on the pressure-maintaining coring and the design of the drilling machine in recent years, and China makes ' one ' for one ' in the concept of ' five-protection ' coring proposed by xi peace academicians for the first time and then ' one ' for the pressure-maintaining coring. There are many techniques to be studied for the structural design of each part in the pressure-maintaining coring.
Patent document CN110847856A discloses a flap valve structure of pressure-maintaining coring device, in which the valve seat has magnetism to attract the valve flap to close. Because the valve clack is closed without depending on the gravity of the valve clack, the valve clack is not limited by the drilling direction. The magnetic force generated by the magnetomechanical machine is used for long-distance traction, and is an ideal unstructured traction device.
In the deep drilling process of the core drilling machine, along with a high-temperature and high-pressure environment, the deep ground high temperature has certain influence on the performance of the core drilling machine, the magnetism of a valve seat of a pressure maintaining controller is also influenced, and the influence of the high temperature on the magnetism of the valve seat (the magnetic force generated by the valve seat on the valve clack is reflected on the valve seat) needs to be specifically tested.
However, at present, a testing device for measuring the magnetic force of the valve seat in a high-temperature environment is lacked, so that the reliability of magnetic closing cannot be further verified, and the improvement of the pressure maintaining controller of the coring device is hindered.
Because the magnetic valve seat of the pressure-maintaining coring device is complex in numerical simulation and actual analog simulation experiments, the dynamic stress condition of the magnetic valve seat under different magnetic field combinations is difficult to study, and the mechanical model is fuzzy, so that a simplified model of a pressure-maintaining controller is usually used for replacing the magnetic valve seat in the experiments. As shown in fig. 1, a simplified model of the holding pressure controller includes a disk-shaped valve flap (No. 7) and a cylindrical magnetic seat (No. 6). The valve seat magnetic field combination and the mechanical model of the pressure maintaining controller of the coring device are improved deeply by researching the magnetic force magnitude of the simplified model magnetic force field.
As shown in fig. 2 and 3, when the magnetic base (serial number 6) of the simplified model has magnetic fields in multiple directions (arrows in the figure represent the magnetizing directions of the permanent magnets), the magnetic base (serial number 6) is formed by splicing multiple magnets (61), and how to measure the magnetic force applied to the valve flap by the whole magnetic base in the axial direction is unsolved by the prior art.
In addition, because the high temperature environment can appear in the pressurize controller operating mode, so the influence of high temperature environment to magnetic base magnetic field also needs the test, and this also prior art can't solve.
Disclosure of Invention
The invention provides a magnetic force testing device and a magnetic force testing system for a pressure maintaining controller in a high-temperature environment, and aims to solve the technical problems.
The invention is realized by the following technical scheme:
a magnetic force testing device of a pressure maintaining controller in a high-temperature environment comprises a first force measuring device, a support, a distance measuring component, a heating device, a temperature sensor and a clamping mechanism for clamping a magnetic base, wherein the clamping mechanism is arranged on the support and positioned above the force measuring device; the first force measuring device is used for measuring the upward acting force of the valve clack;
the height of the clamping mechanism is adjustable, and the distance measurement component is used for measuring the height or displacement of the clamping mechanism;
the heating device is used for heating the magnetic base, and the temperature sensor is used for measuring the temperature of the magnetic base.
Furthermore, the heating device comprises a heat conduction barrel and at least one heating ring, the heating ring is operatively sleeved on the heat conduction barrel, the heat conduction barrel is used for transferring heat to the magnetic seat from the heating ring, and the clamping mechanism is used for clamping the heat conduction barrel and the magnetic seat together.
Further, the heat conducting cylinder is composed of at least two tile-shaped sheets.
Furthermore, the clamping mechanism is provided with a space for accommodating the heat conducting cylinder when clamping, and the clamping mechanism clamps the magnetic base by clamping the heat conducting cylinder.
Furthermore, a temperature sensor is arranged on the heat conducting cylinder.
Furthermore, the first force measuring device comprises a tension measuring device and a storage platform, the tension measuring device is located below the storage platform, one end of the tension measuring device is connected with a connecting component used for connecting the valve clack, and a through hole for the connecting component to pass through is formed in the storage platform.
Or the first force measuring device comprises a pressure measuring device, the pressure measuring device comprises a vertical rod and a pressure measuring probe installed at the lower end of the vertical rod, and the height of the pressure measuring probe is adjustable.
Further, the clamping mechanism can move up and down relative to the bracket.
Further, magnetic force testing arrangement still includes the cylinder core under pressurize controller high temperature environment, and accessible cylinder core and fixture clamp the magnetic force seat in the centre.
The magnetic force testing system of the pressure maintaining controller triggered by the magnetic field in the high-temperature environment comprises a second force measuring device and the magnetic force testing device, wherein the second force measuring device is used for measuring the downward acting force of the valve clack on the valve clack.
Compared with the prior art, the invention has the following beneficial effects:
the magnetic force testing device is simple to operate, can be used for testing and comparing the magnetic force of the pressure maintaining controller in different magnetic field combination modes, and can also be used for measuring the relation between the magnetic force and the distance when the magnetic force is greater than the gravity;
2, the magnetic base can be heated, the magnetic base can be used for testing the magnitude of magnetic force in a high-temperature environment and the relation between the magnetic force and the distance, the influence of high temperature on the magnetic force can be researched by comparing the relation between the magnetic force and the distance in the high-temperature environment and a normal-temperature environment, and the magnetic base has important significance on the research and performance improvement of a pressure maintaining controller;
3, the magnetic force test system can measure the relationship between the magnetic force and the distance of the magnetic seat and the valve clack in the whole process of approaching gradually.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of a simplified model of a pressure holding controller;
FIG. 2 is a three-dimensional view of the magnetic sockets of the simplified model when they are brought together;
FIG. 3 is an exploded view of the magnetic base of the simplified model;
FIG. 4 is a three-dimensional view of the first embodiment;
FIG. 5 is an exploded view of a heat conducting cartridge;
FIG. 6 is a three-dimensional view of a heating ring;
FIG. 7 is a three-dimensional view of the heating apparatus without the clamping mechanism of the first embodiment;
FIG. 8 is a schematic illustration of an embodiment in use;
FIG. 9 is a schematic view of the second embodiment in use;
FIG. 10 is a schematic structural view of a cylindrical core;
FIG. 11 is a three-dimensional view of the third embodiment;
FIG. 12 is a three-dimensional view of the fourth embodiment;
FIG. 13 is a three-dimensional view of the fifth embodiment;
FIG. 14 is a three-dimensional view of the sixth embodiment;
FIG. 15 is a three-dimensional view of the seventh embodiment in use;
FIG. 16 is a schematic view of a second force measuring device used to measure magnetic force.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example one
As shown in fig. 4 to 8, the magnetic force testing device in a high temperature environment of the pressure maintaining controller disclosed in this embodiment includes a first force measuring device, a bracket, a distance measuring component, a heating device, a temperature sensor, and a clamping mechanism 3 for clamping the magnetic base.
The heating device is used for heating the magnetic base, and the temperature sensor is used for measuring the temperature of the magnetic base.
Because the outer side wall of the magnetic seat is a cylindrical surface, the heating device in the embodiment comprises a heat conduction cylinder 4 and at least one heating ring 5, the heat conduction cylinder 4 is used for transferring heat to the magnetic seat from the heating ring 5, and a non-winding resistance wire is arranged inside the heating ring 5. The inner diameter of the heat conduction cylinder 4 is matched with the outer diameter of the magnetic base; the heating ring 5 is operatively sleeved on the heat conducting cylinder 4. The heat conduction cylinder 4 is used for transferring heat from the heating ring 5 to the magnetic base, and the clamping mechanism 3 is used for clamping the heat conduction cylinder 4 and the magnetic base together.
The length of the heat conducting cylinder 4 is consistent with the height of the magnetic base, and the inner diameter of the heat conducting cylinder 4 is matched with the outer diameter of the magnetic base so as to be in contact with the magnetic base surface, so that the heat conducting effect is improved. The number of the heating rings 5 is set as required, and may be two, three or more. The heating ring 5 avoids the clamping mechanism 3 and is sleeved outside the heat conducting cylinder 4.
As shown in fig. 5, the heat conducting tube 4 of the present embodiment is composed of at least two tile-shaped plates 41, so that the heat conducting tube 4 can be clamped on the magnetic base. The material of the heat conducting cylinder 4 is non-metal or copper so as to reduce the influence on the magnetic field of the magnetic seat, and the non-metal material is preferably silicon nitride ceramic.
In this embodiment, the clamping mechanism 3 is clamped on the heat conducting cylinder 4, and the magnetic base is clamped by clamping the heat conducting cylinder 4 consisting of tile-shaped sheets 41. Thus, the holding mechanism 3 has a space for accommodating the heat-conducting tube 4 when it is clamped.
As shown in fig. 7, the clamping mechanism 3 in this embodiment includes a pair of clamping arms, and the clamping surfaces of the clamping arms are cylindrical surfaces. Preferably, the clamping mechanism 3 is a clamp.
In the present embodiment, the temperature sensor is provided on the heat conductive tube 4. The heat conducting cylinder 4 can be arranged to be hollow, a temperature sensor is additionally arranged in the hollow heat conducting cylinder 4, and a heat conducting liquid medium can be refilled in the hollow part according to needs, wherein the heat conducting liquid medium is oil in the embodiment; then, the heating ring 5 at the outermost layer is electrified and heated, so that the temperature of the heating ring 5 is increased and is transferred to the heat conduction cylinder 4, and then the oil temperature is increased until a preset temperature value is reached; when the temperature exceeds a set value, the power of the heating ring 5 can be automatically reduced, and the temperature of the heat conducting cylinder 4 is ensured to be constant. Thus, the temperature transmitted to the magnetic base through heat transfer is constant;
meanwhile, a temperature sensor can be additionally arranged on the magnetic base, and after the magnetic base is heated for a period of time, when the temperature on the magnetic base reaches the set temperature, the test can be started. The preset temperature may be specifically set according to the working environment of the pressure maintaining controller. Because the dwell controller is to operate in a deep environment, different temperature gradients can be set between 50 degrees celsius and 150 degrees celsius.
The first force measuring device is used for measuring the upward acting force of the valve clack. The first force measuring device in this embodiment includes a tension measuring device 101 and a platform 102.
One end of the tension measuring device 101 is connected with a connecting part 104 used for connecting the valve flap, a through hole 103 is arranged on the platform 102, and the free end of the connecting part 104 penetrates through the through hole 103 and extends out of the top surface of the platform 102.
The tension measuring device 101 may be selected from an electronic tension meter, a spring balance, and the like. The connecting member 104 may be selected from a string, a band, a cord, and the like. The connecting member 104 is preferably a rigid cable, which is guaranteed not to deform, so as not to affect the experimental results.
The bracket in this embodiment comprises a base 21 and a column 22, the bottom of the column 22 is fixedly connected with the base 21, and the distance measuring component comprises a height scale mark 23 arranged on the column 22.
The support of this embodiment is lifting support. The lifting of the support is achieved by adjusting the height of the upright 22. The clamping mechanism 3 is fixedly connected with the upper part of the upright post 22, and the height of the clamping mechanism 3 is adjusted by lifting the upright post 22.
The column 22 may be an automatic lifting mechanism or a manual lifting mechanism. If the upright column 22 is an automatic lifting mechanism, the upright column 22 may be a conventional driving mechanism such as a linear motor, an air cylinder, a hydraulic cylinder, etc. If the upright 22 is a manual automatic lifting mechanism, the upright 22 can select a damping telescopic rod.
The application method of the embodiment comprises the following steps:
as shown in fig. 8, the tension measuring device 101 is installed below the platform 102, and the tension measuring device 101 may be installed on the platform 102 or on the base 21; the flap 7 rests on the platform 102. The tension measuring device 101 may be a fixed electronic tension meter, which is fixed on the platform 102 or the base 21 by bolts.
The force measuring hook end of the tension measuring device 101 is sleeved with the connecting part 104, and the other end of the connecting part 104 is tied on the valve clack 7, so that the center lines of the tension measuring device 101, the connecting part 104 and the valve clack 7 are on the same straight line.
Then debugging is carried out, so that the connecting part 104 is straight, and the measured value of the tension measuring device 101 is zero;
the clamping mechanism 3 clamps the magnetic base 6, the heating ring 5 is started, and when the temperature of the magnetic base 6 reaches a preset value, the clamping mechanism 3 is moved downwards to enable the magnetic base 6 to be synchronously lowered;
when the measured value of the tension measuring device 101 is changed from 0 to non-0, the magnetic seat 6 just attracts the valve flap 7, and the height or displacement of the magnetic seat 6 at the moment is recorded;
and continuing to lower the magnetic base 6, and recording the corresponding height or displacement of the magnetic base 6 and the measured value of the tension measuring device 101 at the corresponding moment according to the requirement in the process. When the valve flap 7 is moved upwards against the force of gravity and the force of the tension measuring device 101, the magnetic force is equal to the sum of the force of gravity of the valve flap 7 and the force measured by the tension measuring device 101. Because in this process, the magnetic force that valve clack 7 receives is greater than self gravity, therefore valve clack 7 can be unsettled and gradually upwards move, for the distance between valve clack 7 and magnetic force seat 6 this moment of measurement, the height of valve clack 7 or calculate the ascending displacement of valve clack 7 this moment need be recorded, can calculate the distance of magnetic force seat 6 and valve clack 7 through the height of fixture 3 and valve clack 7.
In the embodiment, the relationship between the magnetic force borne by the valve clack and the distance can be measured by adopting the tension measuring device 101, and the valve clack measuring device has a simple structure and is convenient to operate; the magnetic force testing device can be used for testing and comparing the magnetic force of the pressure maintaining controller in different magnetic field combination modes; the magnetic force seat can be heated, can be used for testing the magnitude of magnetic force in a high-temperature environment and the relation between the magnetic force and the distance, can be used for researching the influence of high temperature on the magnetic force by comparing the relation between the magnetic force and the distance in the high-temperature environment and the normal-temperature environment, and has important significance on the research and performance improvement of the pressure maintaining controller.
Example two
As shown in fig. 9 and 10, the magnetic force testing apparatus in the embodiment of the present invention further includes a cylindrical core 8 in a high temperature environment of the pressure holding controller. The outer diameter of the cylindrical core 8 is equal to the inner diameter of the magnetic base 6. When the magnetic base is used, the cylindrical core 8 is arranged in the center of the magnetic base 6, the clamping mechanism 3 provides a restraining force for the magnetic base 6 from the outside, and the magnetic base 6 is fixed on the bracket through the clamping action between the cylindrical core 8 and the inside and the outside of the clamping mechanism 3. The cylindrical core 8 does not affect the magnetic force of the magnetic base 6. The cylindrical core 8 may be a wood core, a rock core, a plastic tube, or the like. The cylindrical core 8 is a core, and whether the cores at different depths influence the magnetic force generated by the controller or not can be detected; the cylindrical core 8 is a plastic tube which can simulate a real core-taking tube.
EXAMPLE III
The difference between this embodiment and the first or second embodiment is: as shown in fig. 11, the distance measuring means in this embodiment comprises a displacement sensor 9 or distance sensor mounted on a support. The displacement sensor 9 or the distance sensor and the force measuring device are electrically connected with the control system.
The control system can automatically record the measured values of the lower displacement sensor 9 or distance sensor and the measured values of the force measuring device at the corresponding moment in the course of the downward movement.
Example four
The difference between this embodiment and the first, second or third embodiment is that: as shown in fig. 12, the magnetic force testing apparatus in the embodiment of the pressure maintaining controller under the high temperature environment further includes a linear driving mechanism 10 for driving the clamping mechanism 3 to move vertically. The linear driving mechanism 10 is installed on the base 21, and the output end of the linear driving mechanism 10 is connected with the clamping mechanism 3. The clamping mechanism 3 is connected with the bracket in a sliding way. The linear driving mechanism 10 may be a linear motor, an air cylinder, a hydraulic cylinder, or other conventional driving mechanisms.
The linear driving mechanism 10 and the tension measuring device 101 are both electrically connected with the control system, and when the measured value of the tension measuring device 101 is changed to be not 0, the linear driving mechanism 10 automatically stops running, so that the height of the clamping mechanism 3 at the moment can be conveniently recorded.
EXAMPLE five
The difference between this embodiment and the first embodiment is: as shown in fig. 13, in the present embodiment, the clamping mechanism 3 is slidably connected to the bracket, and a locking mechanism for locking the clamping mechanism 3 is disposed between the clamping mechanism 3 and the bracket.
The column 22 is provided with a sliding sleeve, the clamping mechanism 3 is connected with the sliding sleeve, and the locking mechanism is a locking knob 24 for locking and fixing the sliding sleeve.
EXAMPLE six
The difference between this embodiment and the first embodiment is: the height of the platform 102 in this embodiment is also adjustable.
As shown in fig. 14, the platform 102 is connected to a sleeve or a clamp arm, the sleeve is mounted on the pillar 22 and is in clearance fit with the pillar 22, a locking knob 24 is provided between the sleeve and the pillar 22, and the position of the sleeve can be locked by the locking knob 24. The clamping arm may be selected as a clamp.
The application method of the embodiment comprises the following steps:
as shown in fig. 14, the tension measuring device 101 is installed below the platform 102, and the tension measuring device 101 is installed on the base 21; the flap 7 rests on the platform 102.
Connecting the tension measuring device 101 with the valve flap 7 through a connecting part 104, so that the connecting part 104 is straightened, and the measured value of the tension measuring device 101 is zero;
the clamping mechanism 3 clamps the magnetic base 6, the heating ring 5 is started, and when the temperature of the magnetic base 6 reaches a preset value, the clamping mechanism 3 is moved downwards to enable the magnetic base 6 to be synchronously lowered;
when the measured value of the tension measuring device 101 is changed from 0 to non-0, the magnetic seat 6 just attracts the valve flap 7, and the height or displacement of the magnetic seat 6 at the moment is recorded;
and continuing to lower the magnetic base 6, and recording the corresponding height or displacement of the magnetic base 6 and the measured value of the tension measuring device 101 at the corresponding moment according to the requirement in the process.
Because in this process, the magnetic force that valve clack 7 receives is greater than self gravity, therefore valve clack 7 can be unsettled and progressively upward movement, for more accurately measure the distance between valve clack 7 and magnetic force seat 6 this moment, move up platform 102 to unsettled valve clack 7 department this moment, note platform 102's height this moment, can calculate the distance between each other this moment through fixture 3 and platform 102's height.
EXAMPLE seven
This embodiment differs from the previous six embodiments in that: in this embodiment, the first force measuring device includes a pressure measuring device, the pressure measuring device includes a vertical rod and a pressure measuring probe installed at the lower end of the vertical rod, the pressure measuring probe is located above the placement platform, and the distance between the pressure measuring probe and the placement platform is adjustable.
As shown in fig. 15, the pressure measuring apparatus in the present embodiment includes a vertical rod 105 and a pressure measuring probe 106 mounted on a lower end of the vertical rod 105. The outer diameter of the vertical rod 105 should be smaller than the inner diameter of the magnetic holder 6. The vertical rod 105 is preferably a non-metallic material.
The vertical rod 105 is detachably mounted on the column 2 in this embodiment. The upper end of the vertical rod 105 is connected with a sleeve or a clamping arm, the sleeve is installed on the upright post 2 and is in clearance fit with the upright post 2, a locking knob 24 is arranged between the sleeve and the upright post 2, and the position of the sleeve can be locked and fixed through the locking knob 24. The clamping arm may be selected as a clamp.
The application method of the embodiment comprises the following steps:
the valve clack 7 is placed on the base 21 or the storage platform; the clamping mechanism 3 clamps the magnetic base 6;
the lower end of the vertical rod 105 penetrates through the middle of the magnetic base 6, the lower end of the pressure measuring probe 106 is in contact with the top surface of the valve clack 7, and the measured value of the pressure measuring probe 106 is 0;
then the heating ring 5 is started, when the temperature of the magnetic base 6 reaches a preset value, the clamping mechanism 3 is moved downwards, the magnetic base 6 is synchronously lowered,
when the measured value of the pressure measuring probe 106 is changed from 0 to non-0, the magnetic seat 6 just attracts the valve flap 7, the height of the clamping mechanism 3 at the moment is read through the height scale mark 22 and recorded;
and continuously moving the clamping mechanism 3 downwards to synchronously lower the magnetic base 6. In the process, the magnetic force borne by the valve flap 7 is greater than the self gravity, so the valve flap 7 has a tendency of moving upwards, but due to the blocking of the pressure measuring probe 106, the valve flap 7 can be still, but an upward thrust can be given to the pressure measuring probe 106, and the thrust can be directly measured through the pressure measuring probe 106. The measurement values of the pressure measuring probe 106 and the height or displacement of the holding means 3 can be recorded as desired during this process.
The embodiment adopts the pressure measuring device to measure the relationship between the magnetic force borne by the valve clack and the distance after the magnetic force is greater than the gravity, and has simple structure and convenient operation.
The magnetic force testing device adopts the tension measuring device 101, and can measure the relation between the magnetic force borne by the valve clack 7 and the distance of the magnetic seat 6 when the magnetic force is greater than the gravity in the later period. But the relation between the magnetic force and the distance when the magnetic force is smaller than the gravity can not be tested because the magnetic force seat 6 is far away from the valve clack 7 in the earlier stage.
Therefore, the invention also discloses a magnetic force testing system, which comprises a second force measuring device besides the magnetic force testing device, wherein the second force measuring device is used for measuring the upward acting force of the valve clack on the valve clack and can be used for measuring the relation between the magnetic force and the distance when the magnetic force borne by the valve clack is smaller than the self gravity.
The second force measuring device comprises a conventional force measuring cell such as a pressure sensor or a load cell.
The second force measuring device in this embodiment selects the weighing device 1. The weighing device 1 can be an electronic scale. The electronic scale is operated by a piezoresistor and an electronic chip, and is preferable.
The use method of the test system comprises the following steps:
first, as shown in fig. 16, the weighing device 1 is placed below the gripping mechanism 3, and the valve flap 7 is placed on the weighing device 1;
the clamping mechanism 3 clamps the magnetic base 6, the heating ring 5 is started, when the temperature of the magnetic base 6 reaches a preset value, the clamping mechanism 3 is moved downwards, the magnetic base 6 is synchronously lowered, and the height of the clamping mechanism 3 and the measured value of the weighing device 1 at the corresponding moment are recorded according to needs in the lowering process;
when the weighing device 1 shows 0, the scale or displacement is recorded;
then, the first force measuring device is replaced to continue measuring.
Wherein, the weighing device 1 can be directly placed on the base 21 or on the platform 102. If the weighing device 1 is placed on the base 21, the distance between the gripping means 3 and the object platform 102 needs to be adjusted when changing to the tension measuring device 101.
It is known that when the weighing apparatus 1 is shown as 0, the distance between the weighing apparatus 1 and the clamping mechanism 3 is h, and the distance between the clamping mechanism 3 and the platform 102 needs to be adjusted at this time.
If the weighing apparatus 1 is placed on the platform 102. Because the valve clack 7 is directly arranged on the weighing device when the weighing device 1 is used for measuring, and when the tension measuring device 101 is used, the valve clack 7 is directly arranged on the object placing platform 102, when the tension measuring device 101 is used for measuring, the object placing platform 102 needs to be upward or the clamping mechanism 3 needs to think of moving the distance of the height of the weighing device, so that the distance between the valve clack 7 and the magnetic seat 6 before and after replacement is unchanged.
When the second force measuring device of the magnetic force testing system is used for measuring the relation between the magnetic force and the distance when the magnetic force is smaller than the gravity; the first force measuring device can measure the relationship between the magnetic force and the distance when the magnetic force is greater than the gravity. The magnetic force testing system can measure the relationship between the magnetic force and the distance of the magnetic seat and the valve clack in the whole process of approaching gradually.
Of course, the invention can also be used to test the relationship of magnetic force to distance of different magnets and their attractive substances throughout the process of approaching. It is particularly suitable for testing cylindrical or cylindrical magnets.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a magnetic force testing arrangement under pressurize controller high temperature environment which characterized in that: the device comprises a first force measuring device, a bracket, a distance measuring component, a heating device, a temperature sensor and a clamping mechanism for clamping a magnetic base, wherein the clamping mechanism is arranged on the bracket and positioned above the force measuring device; the first force measuring device is used for measuring the upward acting force of the valve clack;
the height of the clamping mechanism is adjustable, and the distance measurement component is used for measuring the height or displacement of the clamping mechanism;
the heating device is used for heating the magnetic base, and the temperature sensor is used for measuring the temperature of the magnetic base.
2. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 1, wherein: the heating device comprises a heat conduction barrel and at least one heating ring, the heating ring is operatively sleeved on the heat conduction barrel, the heat conduction barrel is used for transferring heat to the magnetic seat from the heating ring, and the clamping mechanism is used for clamping the heat conduction barrel and the magnetic seat together.
3. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 2, wherein: the heat conducting cylinder consists of at least two tile-shaped sheets.
4. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 2 or 3, wherein: the clamping mechanism is provided with a space for accommodating the heat conducting cylinder when clamping, and the clamping mechanism clamps the magnetic base by clamping the heat conducting cylinder.
5. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 2 or 3, wherein: and a temperature sensor is arranged on the heat conducting cylinder.
6. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 1, wherein: the first force measuring device comprises a tension measuring device and a storage platform, the tension measuring device is located below the storage platform, one end of the tension measuring device is connected with a connecting component used for connecting the valve clack, and a through hole for the connecting component to penetrate through is formed in the storage platform.
7. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 1, wherein: the first force measuring device comprises a pressure measuring device, the pressure measuring device comprises a vertical rod and a pressure measuring probe installed at the lower end of the vertical rod, and the height of the pressure measuring probe is adjustable.
8. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 1, 6 or 7, wherein: the clamping mechanism is movable up and down relative to the support.
9. The magnetic force testing device for the pressure maintaining controller in the high-temperature environment according to claim 1, 2, 3, 6 or 7, wherein: it also comprises a cylindrical core, and the magnetic base can be clamped between the cylindrical core and the clamping mechanism.
10. A magnetic force test system comprising the magnetic force test device for the dwell controller in the high temperature environment according to any one of claims 1 to 9, wherein: the valve flap further comprises a second force measuring device, and the second force measuring device is used for measuring the downward acting force of the valve flap.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236164A (en) * | 2021-03-31 | 2021-08-10 | 深圳大学 | Clamping mechanism of magnetic force trigger device and flap valve magnetic force closing simulation device |
| CN113884390A (en) * | 2021-03-11 | 2022-01-04 | 四川大学 | High-temperature tensile test cabin for armored cable of heat insulation test bed |
-
2020
- 2020-07-01 CN CN202010621897.5A patent/CN111796224A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884390A (en) * | 2021-03-11 | 2022-01-04 | 四川大学 | High-temperature tensile test cabin for armored cable of heat insulation test bed |
| CN113884390B (en) * | 2021-03-11 | 2023-04-25 | 四川大学 | High-temperature tensile test cabin for armor cable of heat preservation test stand |
| CN113236164A (en) * | 2021-03-31 | 2021-08-10 | 深圳大学 | Clamping mechanism of magnetic force trigger device and flap valve magnetic force closing simulation device |
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