CN112519304A - Multipoint temperature measurement leading-out device of hot isostatic pressing machine - Google Patents
Multipoint temperature measurement leading-out device of hot isostatic pressing machine Download PDFInfo
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- CN112519304A CN112519304A CN202011260650.1A CN202011260650A CN112519304A CN 112519304 A CN112519304 A CN 112519304A CN 202011260650 A CN202011260650 A CN 202011260650A CN 112519304 A CN112519304 A CN 112519304A
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- temperature measurement
- hot isostatic
- multipoint
- isostatic pressing
- pressing machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a multipoint temperature measurement leading-out device of a hot isostatic pressing machine, belongs to the technical field of hot isostatic pressing equipment, and solves the problems that the existing temperature measurement leading-out device is small in number of leading-out wires, low in integration level, large in plug body space occupation and prone to failure in sealing under the action of high temperature and high pressure. The invention relates to a multipoint temperature measurement leading-out device of a hot isostatic pressing machine, which comprises a cup seat, a conical plug, a temperature measurement lead and a fixing device; the multi-point temperature measurement leading-out device is fixed on the hot isostatic pressing machine through the fixing device, the cone plug is installed in the cup seat, the temperature measurement lead is located between the cup seat and the cone plug, and the end of the temperature measurement lead penetrates out of the cup seat and is led to a temperature detection point in the cylinder body of the hot isostatic pressing machine. According to the invention, a plurality of temperature measuring leads are arranged in one device, so that the device is compact in structure, convenient to install and reliable in sealing, the failure rate of the device is effectively reduced, and the safety and the economy of the device are improved.
Description
Technical Field
The invention relates to the technical field of hot isostatic pressing equipment, in particular to a multipoint temperature measurement leading-out device of a hot isostatic pressing machine.
Background
The hot isostatic press is a device which is used for pressing, sintering and densifying a product under the combined action of high temperature and high pressure by uniformly transmitting pressure of inert gas (nitrogen, argon and the like) to act on the surface of the product in a closed container. With the rapid development of technology and materials industries, the hot isostatic pressing machine becomes important industrial equipment in modern industries, and especially, the large-size and high-performance hot isostatic pressing machine has important application value in practical production.
The hot isostatic pressing machine is used as high-technology equipment integrating high temperature and high pressure, two thermocouples with the same scale number are generally arranged at the same position in a container for collecting and controlling the temperature of equipment, the temperature signal is converted into a thermal electromotive force signal, the signal is led to the outside of the high-temperature and high-pressure container through a temperature measurement leading-out device, and then the temperature of a medium to be measured is converted into the temperature of the medium through an electric instrument. Because the mechanical property of the material can be severely reduced in a high-temperature environment, the structural design of a temperature measurement leading-out device in a high-temperature and high-pressure closed cavity of a hot isostatic press is always difficult, and the leading-out device can bear both the ultrahigh pressure of 200MPa and the higher temperature. Meanwhile, in order to ensure a stable and uniform temperature field in a working space of a large hot isostatic pressing machine, a hot zone space formed in a pressure container of the hot isostatic pressing machine is generally divided into a plurality of thermal subareas according to height, each subarea is provided with a heating element, the temperature of each subarea is monitored in real time through two thermocouples, the heating power of each subarea is continuously adjusted, the heating temperature is independently controlled, and finally the temperature uniformity in the hot zone is achieved. However, the hot isostatic pressing machine temperature measurement leading-out device has low lead integration level, large volume, poor sealing effect under the action of high temperature and high pressure, high detection failure rate and short service life, seriously influences the performance of equipment, reduces the use efficiency and safety performance of the equipment and increases the overhaul and maintenance cost of the equipment.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a multi-point temperature measurement extraction device for a hot isostatic press, so as to solve the problems that the lead integration level of the temperature measurement extraction device of the existing hot isostatic press is low, the plug body space is occupied, and the sealing is easy to fail under the action of high temperature and high pressure.
The purpose of the invention is mainly realized by the following technical scheme:
a multi-point temperature measurement leading-out device of a hot isostatic pressing machine comprises a cup seat, a conical plug, a temperature measurement lead and a fixing device;
the multipoint temperature measurement leading-out device is fixed on a plug body of the hot isostatic pressing machine through the fixing device, the cone plug is installed in the cup base, the temperature measurement lead is located between the cup base and the cone plug, and the end of the temperature measurement lead penetrates out of the cup base and is led to a temperature detection point in the hot isostatic pressing machine barrel.
Furthermore, the cup base is internally provided with an installation groove of the conical plug, and the installation groove has downward taper.
Further, the cone plug comprises a prism part, a circular table part and a cylindrical part, and the circular table part and the mounting groove of the cup seat have the same taper.
Furthermore, the fixing device is a pull rod, the cylindrical part of the conical plug is provided with a threaded blind hole, the lower part of the cup seat and the part of the conical plug corresponding to the threaded hole are provided with through holes, and the pull rod penetrates through the cup seat to be connected with the conical plug and fixes the multipoint temperature measurement leading-out device on the lower plug body of the hot isostatic pressing machine.
Furthermore, a first annular sleeve and a second annular sleeve are arranged between the conical plug and the cup base, the first annular sleeve is arranged outside the circular table portion of the conical plug in a sleeved mode, the second annular sleeve is located between the first annular sleeve and the cup base, and the first annular sleeve and the second annular sleeve are used for installing the temperature measurement lead.
Furthermore, the multipoint temperature measurement leading-out device of the hot isostatic pressing machine further comprises a locking nut (12), and the locking nut is arranged on the pull rod and is positioned below the cup seat.
Further, a spring assembly is arranged between the cup seat and the locking nut.
Further, the cup holder is cylindrical, the cylinder has a first outer diameter, a second outer diameter, a third outer diameter and a fourth outer diameter which are reduced in sequence, and a first step, a second step and a third step are formed on the outer surface of the cylinder.
Furthermore, an O-shaped ring is sleeved outside the first step.
Further, the second step overcoat is equipped with outer triangle circle and interior triangle circle, the inclined plane of outer triangle circle with the inclined plane laminating of interior triangle circle.
Further, the diameter of the cross section of the cylindrical part is smaller than that of the lower surface of the circular truncated cone, and a step is formed between the lower surface of the circular truncated cone part and the cylindrical part and used for matching and fixing the first annular sleeve and the second annular sleeve.
Furthermore, the groove of the water cooling plate for mounting the multipoint temperature measurement leading-out device is provided with a first inner diameter and a second inner diameter, the first inner diameter is matched with the first outer diameter of the cup base, and the second inner diameter is matched with the fourth outer diameter of the cup base.
Furthermore, a nylon gasket is arranged in the cup seat, and the temperature measuring lead penetrates into the cup seat through the nylon gasket.
The invention can realize at least one of the following beneficial effects:
(1) according to the multipoint temperature measurement leading-out device, the plurality of temperature measurement leads are innovatively arranged in one device, the structure is compact, the installation is convenient, the sealing is reliable, the continuous and stable temperature control of the hot isostatic pressing machine is ensured, the equipment failure rate is reduced, the equipment maintenance cost is reduced, and the equipment operation safety is improved.
(2) In the multipoint temperature measurement leading-out device, the ultrahigh pressure combined sealing element is arranged between the cup seat and the groove of the water cooling plate, and the ultrahigh pressure sealing requirement between the multipoint temperature measurement leading-out device and the water cooling plate is ensured under the action of the ultrahigh pressure combined sealing element.
(3) The multipoint temperature measurement leading-out device is arranged in the groove of the water cooling plate of the hot isostatic pressing machine, so that heat transfer between the multipoint temperature measurement leading-out device and the water cooling plate is facilitated, heat accumulation of the multipoint temperature measurement leading-out device is avoided, and the multipoint temperature measurement leading-out device can continuously and stably work at a higher temperature.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic view of the location of a multi-point temperature measurement extraction device in a hot isostatic press according to an embodiment of the present invention;
FIG. 2 is a front view of the multi-point temperature measurement leading-out device according to the embodiment of the present invention;
FIG. 3 is an exploded view of a multi-point thermometric lead-out apparatus according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view 1/4 of a cup holder according to an embodiment of the invention;
FIG. 5 is a cross-sectional view 1/4 of a second annular sleeve of an embodiment of the present invention.
Reference numerals:
1-water cooling plate, 2-cup seat, 3-conical plug, 4-temperature measuring lead wire, 5-first annular sleeve, 6-second annular sleeve, 7-nylon washer, 8-O-shaped ring, 9-outer triangular ring, 10-inner triangular ring, 11-spring component, 12-locking nut, 13-pull rod and 14-lower plug body.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection via an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
For convenience of explanation, the upper and lower orientations of the respective components of the multipoint temperature measurement drawing device are set to the orientations when they are arranged as shown in fig. 2.
One embodiment of the invention, as shown in fig. 1 to 5, discloses a multipoint temperature measurement leading-out device of a hot isostatic pressing machine, which comprises a cup base 2, a conical plug 3, a temperature measurement lead 4, a first annular sleeve 5, a second annular sleeve 6 and a pull rod 13. The multipoint temperature measurement extraction device of the embodiment is arranged on a water cooling plate 1 of a hot isostatic pressing machine, and the water cooling plate 1 is positioned on a lower plug body 14 of the hot isostatic pressing machine. The water-cooling plate 1 is provided with a groove for installing the multipoint temperature measurement extraction device, the upper end of the multipoint temperature measurement extraction device is sleeved in the groove and extends into the cylinder of the hot isostatic pressing machine, the other end of the multipoint temperature measurement extraction device penetrates through the water-cooling plate 1 and is fixed on the lower plug body 14 of the hot isostatic pressing machine through the pull rod 13, meanwhile, the inner surface of the groove of the multipoint temperature measurement extraction device and the inner surface of the groove of the water-cooling plate 1 are tightly attached, heat transfer between the multipoint temperature measurement extraction device and the water-cooling plate 1 is facilitated, heat accumulation of the multipoint temperature measurement extraction device is avoided, and the multipoint temperature measurement extraction device can be.
The structure schematic diagram of the multipoint temperature measurement leading-out device is shown in fig. 2, and the multipoint temperature measurement leading-out device comprises a conical plug 3, a cup seat 2, a locking nut 12 and a pull rod 13 from top to bottom in sequence. The cup holder 2 is cylindrical, the cylinder has a first outer diameter, a second outer diameter, a third outer diameter and a fourth outer diameter which are reduced in sequence, and the changed outer diameters form a first step, a second step and a third step on the outer surface of the cylinder. The inside of cup 2 is equipped with the mounting groove of awl stopper 3, and the mounting groove has downward tapering. The conical plug 3 comprises a prism part, a circular table part and a cylindrical part from top to bottom in sequence. The cross section of the prism part is a regular polygon (such as a regular hexagon), and the arrangement of the prism part enables the cone plug 3 to be convenient for clamping the cone plug 3 when the cone plug 3 is connected with the pull rod 13. Threaded blind holes are formed in the prism part, so that the multipoint temperature measurement leading-out device can be conveniently mounted and dismounted. The circular truncated cone portion comprises a circular truncated cone, the diameter of the upper surface of the circular truncated cone is larger than that of the lower surface of the circular truncated cone, and the taper of the circular truncated cone is the same as that of the mounting groove of the cup base 2. The diameter of the cross section of the cylindrical part is smaller than that of the lower surface of the circular truncated cone, and a step is formed between the lower surface of the circular truncated cone part and the cylindrical part and used for matching and fixing the first annular sleeve 5 and the second annular sleeve 6. The conical plug 3 is arranged in the mounting groove of the cup base 2. The tapering of the mounting groove of awl stopper 3 and cup 2 can reduce the required pretightning force of initial extrusion sealing pull rod 13, and simultaneously, in hot isostatic pressing machine working process, the atress under the effect of the super high pressure of first annular cover 5 and second annular cover 6 in the hot isostatic pressing barrel can be controlled in the tapering setting, simultaneously, guarantees the leakproofness between awl stopper 3 and the cup 2.
Be equipped with the screw thread blind hole in the cylinder portion of awl stopper 3, the lower part of cup 2 is equipped with the through-hole with the corresponding position of the screw hole of awl stopper 3 to make pull rod 13 can pass cup 2 and be connected with awl stopper 3. The locking nut 12 is arranged on the pull rod 13 and is positioned below the cup holder 2, so that the conical plug 3 and the cup holder 2 can be pressed tightly through the pull rod 13 and the locking nut 12.
A first annular sleeve 5 and a second annular sleeve 6 are arranged between the conical plug 3 and the cup base 2, and the first annular sleeve 5 comprises a first side wall and a first bottom wall and is used for installing a temperature measuring lead 4. When the first annular sleeve 5 is installed, the first side wall sleeve is arranged outside the conical plug 3, and the first bottom wall is positioned at the lower part of the circular table part of the conical plug 3 and abuts against the outer surface of the cylindrical part of the conical plug 3. The second annular sleeve 6 comprises a second side wall and a second bottom wall and is used for installing the temperature measuring lead 4. When the second annular sleeve 6 is installed, the second side wall is positioned between the first side wall of the first annular sleeve 5 and the inner surface of the installation groove of the cup holder 2, and the second bottom wall is positioned below the first bottom wall and simultaneously abuts against the outer surface of the cylindrical part of the conical plug 3. When the pull rod 13 pulls the cone plug 3 downwards, the first annular sleeve 5 and the second annular sleeve 6 can be pressed.
A plurality of groups of temperature measuring leads 4 are clamped between the first annular sleeve 5 and the second annular sleeve 6, and the first annular sleeve 5 and the second annular sleeve 6 are made of high-performance polytetrafluoroethylene, so that the temperature measuring leads 4 cannot be damaged when the first annular sleeve 5 and the second annular sleeve 6 clamp the temperature measuring leads 4. The upper end of the temperature measuring lead 4 penetrates out of the cup seat 2 and is led to a temperature detection point in the cylinder body of the hot isostatic pressing machine, so that the temperature is measured. The bottom of the second annular sleeve 6 and the lower part of the cup holder 2 are provided with a plurality of through holes, and the lower end of the temperature measurement lead wire 4 penetrates through the bottom of the second annular sleeve 6 and the cup holder 2 to be led to a monitoring system, so that the transmission and reading of temperature signals are realized.
The cup base 2 and the conical plug 3 are tightly attached to the first annular sleeve 5 and the second annular sleeve 6 under the action of the pretightening force of the pull rod 13, the first annular sleeve 5 and the second annular sleeve 6 generate certain plastic deformation under the clamping force of the conical plug 3 and the cup base 2, the temperature measurement lead 4 is tightly wrapped, extrusion sealing is formed, and the initial sealing of the multipoint temperature measurement leading-out device is realized.
Furthermore, a nylon gasket 7 is arranged in the cup base 2, and the temperature measuring lead 4 penetrates into the cup base 2 through the nylon gasket 7. The nylon gasket 7 prevents on the one hand that the temperature measurement lead wire 4 is direct to contact with the edge of cup base 2, protects the temperature measurement lead wire 4, reduces the danger that the temperature measurement lead wire 4 is scratched in the extrusion sealing process.
Further, in order to ensure the sealing performance between the cup holder 2 and the groove of the water cooling plate 1, an O-ring 8 is sleeved outside the first step of the cup holder 2. The width of the gap between the first step and the water cooling plate 1 is smaller than the cross-sectional diameter of the O-ring 8, so that the O-ring 8 is in a compressed state during use. The O-shaped ring 8 elastically deforms under extrusion, and the elastic force enables the O-shaped ring 8 to generate contact pressure with the contact surface of the water cooling plate 1 and the cup base 2, so that the initial sealing between the multipoint temperature measurement leading-out device and the water cooling plate 1 is realized.
An outer triangular ring 9 and an inner triangular ring 10 are sleeved outside the second step of the cup holder 2. The inclined surface of the outer triangular ring 9 is in contact with the inclined surface of the inner triangular ring 10. In the process of pressing a product by the hot isostatic pressing machine, the container needs to bear about 200MPa of internal pressure, the pressure acts on the upper surface of the O-shaped ring 8 along with the rise of the internal pressure of the container, the sealing contact state of the O-shaped ring 8 is continuously changed, the self-sealing effect of the O-shaped ring 8 is further enhanced, and primary sealing outside the cup seat is formed; simultaneously, the O-shaped ring 8 transmits the acting force of ultrahigh pressure to the outer triangular ring 9, the outer triangular ring 9 slides downwards along the inclined plane, the inner triangular ring 10 shrinks inwards under the extrusion of the outer triangular ring 9 to be tightly attached to the cup base 2 and the water cooling plate 1, meanwhile, the outer triangular ring 9 is limited by the inclined plane to move downwards and grow radially under the extrusion, so that the outer triangular ring 9 is tightly attached to the inner surface of the groove of the water cooling plate 1, and the sealing between the multipoint temperature measurement leading-out device and the water cooling plate 1 in the ultrahigh pressure state is realized. Simultaneously, the cup base 2 and the conical plug 3 are under the initial sealing effect, the conical plug 3 is under the high-pressure effect along with the pressure rise in the container, the downward pressure of the conical plug 3 is gradually increased, the conical plug 3 further strengthens the extrusion effect of the first annular sleeve 5 and the second annular sleeve 6, the clamping force of the temperature measurement lead 4 is further improved when the first annular sleeve 5 and the second annular sleeve 6 are attached to the conical plug 3 and the cup base 2, and the self-tightening type extrusion sealing under the ultrahigh pressure effect is formed.
Further, the recess that water-cooling board 1 is used for installing multiple spot temperature measurement eduction gear has first internal diameter and second internal diameter, first internal diameter and the cooperation of the first external diameter of cup 2, the cooperation of the fourth external diameter of second internal diameter and cup 2, cup 2 presses on the step between first internal diameter and second internal diameter through outer triangle circle 9, guaranteed sealed reliability on the one hand, on the other hand, guarantee the position accuracy that multiple spot temperature measurement eduction gear installed in the water-cooling board, improve the heat conduction efficiency between multiple spot temperature measurement eduction gear and the water-cooling board 1.
Further, a spring assembly 11 is arranged between the cup holder 2 and the lock nut 12, and the spring assembly 11 is used for compensating the extrusion sealing pre-tightening force of the first annular sleeve 5 and the second annular sleeve 6. In the long-term use process of the multipoint temperature measurement leading-out device, the first annular sleeve 5 and the second annular sleeve 6 are easy to generate plastic creep, the wall thickness of the annular sleeves is reduced, the extrusion sealing pretightening force of the conical plug 3 and the cup base 2 is reduced, the sealing clamping force of the temperature measurement lead 4 is insufficient, and the sealing performance is remarkably reduced. The spring assembly 11 pressed tightly through the locking nut 12 is arranged at the bottom of the cup base 2, the elastic force of the spring assembly 11 can compensate reduction of pretightening force of the pull rod 13 caused by plastic creep of the first annular sleeve 5 and the second annular sleeve 6, and the overhaul period of the device is prolonged.
Further, as an improved scheme of the pull rod 13 of the multipoint temperature measurement leading-out device in the embodiment of the invention, the multipoint temperature measurement leading-out device in the embodiment of the invention can be fixed by a flange. Specifically, the cone plug 3 includes round platform portion and cylinder portion, does not include prism portion, is equipped with spring unit on the round platform portion of cone plug 3, and the periphery of the multi-point temperature measurement eduction gear recess is equipped with the screw hole on the water-cooling board 1, and the flange middle part compresses tightly the spring unit on the cone plug 3, and the position that the flange corresponds temperature measurement lead wire 4 is equipped with the through-hole for temperature measurement lead wire 4 upwards wears out the flange, and the flange passes through the bolt fastening on water-cooling board 1. Adopt the flange to fix on the one hand and make multipoint temperature measurement eduction gear atress even, guarantee fixed reliability, on the other hand, need not process in cup 2 and the awl stopper 3 and pull rod 13 complex hole, the awl stopper 3 need not set up prism portion, has reduced the degree of difficulty of processing, and has reduced the overall dimension of cup 2 and awl stopper 3 for multipoint temperature measurement eduction gear's structure is compacter, further reduces the hot isostatic pressing machine cock body space that occupies.
Furthermore, the upper portion of the conical plug 3 is provided with a spring assembly, the flange compresses the conical plug 3 through the spring assembly, the elastic force of the spring assembly can compensate reduction of the pre-tightening force of the flange caused by plastic creep of the first annular sleeve 5 and the second annular sleeve 6, and the overhaul period of the device is prolonged.
In summary, according to the multipoint temperature measurement extraction device of the hot isostatic pressing machine provided by the embodiment of the invention, a plurality of temperature measurement leads are innovatively arranged in one device, the structure is compact, the installation is convenient, the sealing is reliable, the continuous and stable temperature control of the hot isostatic pressing machine is ensured, the equipment failure rate is reduced, the equipment maintenance cost is reduced, and the equipment operation safety is improved; the first annular sleeve and the second annular sleeve of the multipoint temperature measurement leading-out device generate certain plastic deformation under the clamping force of the conical plug and the cup seat, and the temperature measurement lead is tightly wrapped to form extrusion sealing, so that the internal sealing of the multipoint temperature measurement leading-out device is guaranteed; an ultrahigh pressure combined sealing element is arranged between a cup seat of the multipoint temperature measurement extraction device and a water cooling plate groove of the hot isostatic pressing machine, and the ultrahigh pressure sealing requirement between the multipoint temperature measurement extraction device and the water cooling plate is ensured under the action of the ultrahigh pressure combined sealing element; the multipoint temperature measurement leading-out device is arranged in a groove of a water cooling plate of the hot isostatic pressing machine, so that heat transfer between the multipoint temperature measurement leading-out device and the water cooling plate is facilitated, heat accumulation of the multipoint temperature measurement leading-out device is avoided, and the multipoint temperature measurement leading-out device can continuously and stably work at a high temperature.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A multipoint temperature measurement leading-out device of a hot isostatic pressing machine is characterized by comprising a cup base (2), a conical plug (3), a temperature measurement lead (4) and a fixing device;
the multipoint temperature measurement leading-out device is fixed on a plug body of the hot isostatic pressing machine through the fixing device, the conical plug (3) is installed in the cup seat (2), the temperature measurement lead (4) is located between the cup seat (2) and the conical plug (3), and the end of the temperature measurement lead (4) penetrates out of the cup seat (2) and is led to a temperature detection point in the cylinder body of the hot isostatic pressing machine.
2. The multipoint temperature measurement extraction device of the hot isostatic press according to claim 1, wherein a mounting groove for mounting the conical plug (3) is provided in the cup holder (2), and the mounting groove has a downward taper.
3. The multipoint temperature measurement extraction device of the hot isostatic press according to claim 2, wherein the cone plug (3) comprises a prism part, a circular table part and a cylindrical part, and the circular table part and the mounting groove of the cup holder (2) have the same taper.
4. The multipoint thermometric lead-out arrangement of the hot isostatic press according to claim 3, wherein the fixing means is a tie rod (13), and the multipoint thermometric lead-out arrangement is fixed to the lower plug body of the hot isostatic press by means of the tie rod (13).
5. The multipoint thermometric extraction device of a hot isostatic press according to claim 4, characterised in that between said conical plug (3) and said cup (2) there are provided a first annular sheath (5) and a second annular sheath (6).
6. The multipoint temperature extraction device of the hot isostatic press according to claim 5, further comprising a locknut (12), wherein the locknut (12) is arranged on the tie rod (13) and is located below the cup holder (2).
7. The multipoint temperature extraction device of the hot isostatic press according to claim 6, wherein a spring assembly (11) is provided between the cup holder (2) and the locknut (12).
8. The multipoint temperature measurement extraction apparatus of a hot isostatic press according to claim 1, wherein said cup holder (2) is cylindrical, the cylinder having a first outer diameter, a second outer diameter, a third outer diameter and a fourth outer diameter which decrease in sequence, and a first step, a second step and a third step are formed on the outer surface of the cylinder.
9. The multipoint thermometric extraction apparatus of claim 8, wherein said first step jacket is provided with an O-ring (8).
10. The multipoint thermometric extraction device of the hot isostatic press according to claim 8, wherein the second step jacket is provided with an outer triangular ring (9) and an inner triangular ring (10), and the inclined surface of the outer triangular ring (9) and the inclined surface of the inner triangular ring (10) are attached.
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| CN202011260650.1A CN112519304B (en) | 2020-11-12 | 2020-11-12 | Multipoint temperature measurement leading-out device of hot isostatic pressing machine |
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| CN202011260650.1A CN112519304B (en) | 2020-11-12 | 2020-11-12 | Multipoint temperature measurement leading-out device of hot isostatic pressing machine |
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| CN112519304A true CN112519304A (en) | 2021-03-19 |
| CN112519304B CN112519304B (en) | 2022-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114771013A (en) * | 2022-04-11 | 2022-07-22 | 宁波江丰热等静压技术有限公司 | Overtemperature monitoring method and device for hot isostatic pressing machine |
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| CN111289134A (en) * | 2020-02-24 | 2020-06-16 | 淄博益源工程技术有限公司 | Multipoint flexible thermocouple/resistor with conical sealing cavity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114771013A (en) * | 2022-04-11 | 2022-07-22 | 宁波江丰热等静压技术有限公司 | Overtemperature monitoring method and device for hot isostatic pressing machine |
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