CN204222260U - A kind of fast open enclosed safe heating isopressing device - Google Patents
A kind of fast open enclosed safe heating isopressing device Download PDFInfo
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- CN204222260U CN204222260U CN201420608707.6U CN201420608707U CN204222260U CN 204222260 U CN204222260 U CN 204222260U CN 201420608707 U CN201420608707 U CN 201420608707U CN 204222260 U CN204222260 U CN 204222260U
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Abstract
The utility model discloses a kind of fast open enclosed safe heating isopressing device, comprise rod-pulling type housing assembly, cooling device and heater, described heat isostatic apparatus is arranged as rod-pulling type housing assembly from outside to inside successively, cooling device, heat shield and heater, this rod-pulling type housing assembly comprises pressure cylinder, end cover, pressure-bearing pull bar and threaded fastener, an inner lumen is formed by pressure cylinder and end cover, described end cover comprises stifle, flange and seal, this stifle and flange are multilayer discontinuous, trapezoidal parallel teeth is connected with a joggle, and the parallel teeth that levels is interrupted is in stifle axially alignment, by seal elastic soft sealing.The dress that this utility model facilitates material changes, and improves the security of whole device.<u/>
Description
Technical field
The utility model relates to heat isostatic apparatus, specifically a kind of fast open enclosed safe heating isopressing device.
Background technology
High temperature insostatic pressing (HIP) is that high performance material is produced and indispensable means developed by new material, under the acting in conjunction of HTHP, work piece each to balanced pressurized, therefore the density of converted products is high, uniformity is good, excellent performance, this technology has the features such as with short production cycle, operation is few, energy consumption is low, spillage of material is little simultaneously.It is mainly used in powder compacting, diffusion bonding, workpiece, defect elimination, the making of complicated shape part etc., still reprocesses old with a kind of effective ways increased the service life.
Hot isostatic apparatus is in the past all that framework adds helicitic texture, cylinder body is the crucible shape cylinder of a top opening, in order to safe and reliable, stirrup (hot jacket and steel cylinder) reinforced by normal dress outside, forms double shell cylinder body structure, and the chock plug with band full thread suitable for reading of cylinder barrel connects and seals, dismounting is loaded down with trivial details, this structure manufactures comparatively simple, but screw thread is fragile, and security reliability is poor.
Summary of the invention
The purpose of this utility model is: for above-mentioned the deficiencies in the prior art, that provide a kind of fast opening and closing, that security is high fast open enclosed safe heating isopressing device.
The technical solution adopted in the utility model is a kind of fast open enclosed safe heating isopressing device, a kind of fast open enclosed safe heating isopressing device, comprise rod-pulling type housing assembly, cooling device and heater, described heat isostatic apparatus is arranged as rod-pulling type housing assembly from outside to inside successively, cooling device, heat shield and heater, this rod-pulling type housing assembly comprises pressure cylinder, end cover, pressure-bearing pull bar and threaded fastener, an inner lumen is formed by pressure cylinder and end cover, described end cover comprises stifle, flange and seal, this stifle and flange are multilayer discontinuous, trapezoidal parallel teeth is connected with a joggle, and the parallel teeth that levels is interrupted is in stifle axially alignment, by seal elastic soft sealing.
Described trapezoidal parallel teeth increment is chamfering shape.
Described seal comprises " O " RunddichtringO, sealing plate, " O " RunddichtringO support and fixation clip, described " O " RunddichtringO be arranged in " O " RunddichtringO support with on the groove in pressure cylinder and sealing plate direction and " O " RunddichtringO give prominence to groove and naturally contact with pressure cylinder and sealing plate, be somebody's turn to do " O " RunddichtringO support by the fixation clip on sealing plate is fixing, seal whole inner chamber by sealing plate extruding " O " RunddichtringO.
Described pressure cylinder seals pressure cylinder upper and lower port by end cover, posts pressure cylinder outer wall with the pressure-bearing pull bar be evenly arranged, and this pull bar termination is through corresponding end cover screwed hole, fastening with threaded fastener.
Described heat shield comprises base, cylinder and supporting station, and this base is formed by multi-layer cylinder fit, supports each layer cylinder by the supporting station echelon of innermost layer cylinder upper end.
The beneficial effects of the utility model are: the utility model coordinates pressure-bearing pull bar to arrange by rod-pulling type housing assembly and the multilayer discontinuous of flange and stifle, the engagement of trapezoidal parallel teeth, both the object of safe load had been reached, turn improve the efficiency that material dress changes fast opening and closing, add heat shield design and the cooling device of multilayer, further guarantee pressure cylinder inner wall temperature all the time can not higher than 150 DEG C, and reason temperature is too high and exceed safety margins.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the structural representation of the utility model rod-pulling type housing assembly.
Fig. 2 is the structural representation of the utility model flange.
Fig. 3 is the structural representation of the utility model stifle.
Fig. 4 is the structural representation that the utility model flange does not engage with stifle.
Fig. 5 is the structural representation that the utility model flange engages with stifle.
Fig. 6 is A partial enlarged drawing in Fig. 4.
Fig. 7 is B partial enlarged drawing in Fig. 5.
Fig. 8 is the sealed structural representation of Fig. 1.
Fig. 9 is C partial enlarged drawing in Fig. 8.
Figure 10 is the sealing principle figure of Fig. 9.
Code name implication in figure: 1-pressure-bearing pull bar; 2-pressure cylinder; 3-flange; 4-stifle; 5-sealing plate; 6-" O " RunddichtringOs; 7-" O " RunddichtringO supports; 8-fixing briquetting; 9-hold-down screw; 11-heat shield; 111-base; 112-supporting station; 12-interior pressure; 13-external pressure; 14-thrust; 15-nut.
Detailed description of the invention
The utility model is a kind of fast open enclosed safe heating isopressing device, and comprise rod-pulling type housing assembly, cooling device and heater, this heat isostatic apparatus is arranged as rod-pulling type housing assembly, cooling device, heat shield and heater from outside to inside successively.The operation principle of hot isostatic pressing technique is: by highly purified argon gas or nitrogen, throw in airtight pressure vessel with compression pump, by the heater arranged in pressure vessel, by the heating materials of gas and process to high temperature, gas produces very large isostatic pressure because of high-temperature expansion simultaneously.According to pascal's principle, medium (liquid or the gas) pressure in closed container, can transmit equably to all directions, at high temperature utilizes each static pressure to equalization to suppress material or goods.
Shown in Figure 1: described rod-pulling type housing assembly comprises pressure cylinder 2, end cover, pressure-bearing pull bar 1 and threaded fastener, this pressure cylinder 2 seals pressure cylinder 2 port by end cover, pressure cylinder 2 outer wall is evenly posted with pressure-bearing pull bar 1, this pressure-bearing pull bar 1 termination is through corresponding end cover screwed hole, with threaded fastener (referring to the fastening threaded pressure-bearing pull bar 1 of nut 15 here), fastening (this securing member can be that stud adds nut 15, packing ring, or single ended bolt adds nut 15 and packing ring), this pressure-bearing pull bar 1 is evenly arranged, be generally 12 to be evenly arranged, can meet completely in the design safety limit and bear service load needs, the load shared on every root pressure-bearing pull bar 1 is just much smaller, and pressure-bearing pull bar 1 is high-strength alloy steel making entirely, explosion-proof and effect that is barrier can be played, HTHP (500 DEG C, under condition of work 50MPa), without the need to additional any special protector, effectively ensure that the security of production.
See shown in Fig. 2 to Figure 10: sealing end cap comprises stifle 4, flange 3 and seal, this stifle 4 is multilayer discontinuous with flange 3, trapezoidal parallel teeth engages (similar spline joint) and is connected, stifle 4 outer wall becomes the parallel teeth of circulating type multilayer, the parallel teeth of every layer is interrupted discontinuous multistage parallel teeth to post on stifle 4 outer wall, and the parallel teeth that levels is interrupted is in stifle 4 axially alignment, it is plane-plane contact between flange 3 and stifle 4, by seal elastic soft sealing, and pressure cylinder 2 forms sealed internal chamber, this connected mode makes rapid axial between stifle 4 and flange 3 move assembly and connection, but it is structural discontinuous also to have made profile of tooth occur simultaneously, be chamfering shape for trapezoidal parallel teeth increment, in order to reduce the stress concentration phenomenon that increment causes because structure is discontinuous, due to the length of the trapezoidal parallel teeth of discontinuous little (corresponding central angle angle is 22.5 °), and be that annular is uniform, flange 3 and stifle 4 stepped tooth are staggered assemble after, only need mutually to rotate a very little angle (as shown in Figure 4: be generally 22.5 °), flange 3 and stifle 4 just can closely be connected with a joggle, the seal comprises " O " RunddichtringO 6, sealing plate 5, " O " RunddichtringO support 7 and fixing briquetting 8, described " O " RunddichtringO 6 be arranged in " O " RunddichtringO support 7 with on the groove in pressure cylinder 2 and sealing plate 5 direction and " O " RunddichtringO 6 give prominence to groove (avoiding " O " RunddichtringO support 7 directly to contact with inboard wall of cylinder block with other Cover members) and naturally contact with pressure cylinder 2 and sealing plate 5, " O " RunddichtringO support 7 is somebody's turn to do by the fixing briquetting 8 that hold-down screw on sealing plate 59 is fixing is fixing, extrude " O " RunddichtringO 6 by sealing plate 5 and seal whole inner chamber, should " O " RunddichtringO 6 be made up of flexible resilient material, lubricating grease can be smeared at cylinder interior sealing position before using, be then flexible contact between " O " RunddichtringO 6 and pressure cylinder 2 body, " O " RunddichtringO support 7 is made by hardness and the lower metal material of intensity, fixing briquetting 8 is relied on to make itself and sealing plate 5 close contact, the seal also can be with the cannelure/lattice having a pairing in pressure cylinder 2 contact surface with sealing plate 5, sealing ring pad or packing sealing ring is put into by these groove/lattice, when this heat isostatic apparatus works, along with the increase sealing ring pad of chamber pressure or packing sealing ring compress further, ensure sealing property, ensure that the high-quality sealing property of sealing can arrange many places cannelure/lattice with pressure cylinder 2 contact surface and put into sealing ring pad or packing sealing ring at sealing plate 5.
When inner chamber internal gas pressure is greater than outside external pressure 13, interior pressure 12 will promote " O " RunddichtringO support 7 diameter and increase, and being adjacent to sealing plate 5, the thrust that pressure differential produces makes " O " RunddichtringO 6 produce compression, makes itself and interior cavity wall fit closely, contact area also increases simultaneously, therefore, bore seal performance changes along with inner cavity pressure in the course of the work, and interior pressure 12 is larger, its thrust 14 is larger, and bore seal performance is stronger.This structure both achieved high pressure sealing, additionally reduced the wearing and tearing of working cylinder inwall.
Shown in upper Fig. 1 to Figure 10: during utility model works, service load is delivered on stifle 4 by sealing plate 5, be delivered on flange 3 by mesh tooth face again, because flange 3 is fixed by pressure-bearing pull bar 1, final all service loads are just born by pressure-bearing pull bar 1 and pressure cylinder 2 wall, make bearing area individual secure like this.
Heat shield 11 comprises base 111, cylinder and supporting station 112, this base 111 is formed by multi-layer cylinder fit, each layer cylinder is supported by supporting station 112 echelon of innermost layer cylinder upper end, and from outside to inside, ground floor cylinder upper end wall has aperture, 2 to 4 layer of one section, cylinder lower end sidewall has steam vent and lower end has through hole, 5th layer of lower end wall through hole is with inner space, when heating system work, the temperature of heat shield 11 inside is far away higher than external temperature, at this time heat transfer will be there is, when whole system work, all high pressure nitrogen (or other character inactive gas) can be filled with by aperture on ground floor cylinder in whole inner chamber, the through hole had by the 2 to 4 layer of cylinder lower end and sidewall aperture are filled with each layer cylindrical shell gas, by the 5th layer, gas is filled with inner chamber simultaneously, reach, gassy in whole pressure cylinder 2, the each layer of cylindrical shell is not owing to directly contacting, interlayer gas can only be leaned on as heat conducting medium, and the thermal conductivity factor of gas is very little, thermal resistance is very large, heat-conducting effect is bad, thus the heat inside heat shield 11 is difficult to be transmitted to heat shield 11 outside with thermaltransmission mode, every interlayer temperature difference is less, also a little part is only accounted for the heat that heat radiation exports, in cylinder, thermal loss just seldom, simultaneously heat shield 11 and heat shield 11 outside with under the acting in conjunction of the cooling device of pressure cylinder 2 inside, can ensure that pressure cylinder 2 inner wall temperature all the time can not higher than 150 DEG C, reason temperature is too high and exceed safety margins, this heat shield 11 also has the effect of cooling fast simultaneously.
Heater comprises heating power supply, heating furnace and temperature measuring equipment, this heating furnace is arranged on lower stifle 4, heating adopts multilayer Resistant heating stove partition heating, temperature measuring equipment adopts branched K type thermocouple to locate respectively heating-up temperature, by gas conduction heat, heat shield 11 internal workpiece is heated to design temperature.
Claims (5)
1. a fast open enclosed safe heating isopressing device, comprise rod-pulling type housing assembly, cooling device and heater, described heat isostatic apparatus is arranged as rod-pulling type housing assembly from outside to inside successively, cooling device, heat shield and heater, this rod-pulling type housing assembly comprises pressure cylinder, end cover, pressure-bearing pull bar and threaded fastener, an inner lumen is formed by pressure cylinder and end cover, it is characterized in that: described end cover comprises stifle, flange and seal, this stifle and flange are multilayer discontinuous, trapezoidal parallel teeth is connected with a joggle, and the parallel teeth that levels is interrupted is in stifle axially alignment, by seal elastic soft sealing.
2. fast open enclosed safe heating isopressing device according to claim 1, is characterized in that: described trapezoidal parallel teeth increment is chamfering shape.
3. fast open enclosed safe heating isopressing device according to claim 1, it is characterized in that: described seal comprises " O " RunddichtringO, sealing plate, " O " RunddichtringO support and fixation clip, described " O " RunddichtringO be arranged in " O " RunddichtringO support with on the groove in pressure cylinder and sealing plate direction and " O " RunddichtringO give prominence to groove and naturally contact with pressure cylinder and sealing plate, be somebody's turn to do " O " RunddichtringO support by the fixation clip on sealing plate is fixing, seal whole inner chamber by sealing plate extruding " O " RunddichtringO.
4. fast open enclosed safe heating isopressing device according to claim 1, it is characterized in that: described pressure cylinder seals pressure cylinder upper and lower port by end cover, pressure cylinder outer wall is posted with the pressure-bearing pull bar be evenly arranged, this pull bar termination is through corresponding end cover screwed hole, fastening with threaded fastener.
5. fast open enclosed safe heating isopressing device according to claim 1, it is characterized in that: described heat shield comprises base, cylinder and supporting station, this base is formed by multi-layer cylinder fit, supports each layer cylinder by the supporting station echelon of innermost layer cylinder upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608707.6U CN204222260U (en) | 2014-10-21 | 2014-10-21 | A kind of fast open enclosed safe heating isopressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608707.6U CN204222260U (en) | 2014-10-21 | 2014-10-21 | A kind of fast open enclosed safe heating isopressing device |
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| Publication Number | Publication Date |
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| CN204222260U true CN204222260U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420608707.6U Active CN204222260U (en) | 2014-10-21 | 2014-10-21 | A kind of fast open enclosed safe heating isopressing device |
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| CN (1) | CN204222260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215038A (en) * | 2018-01-12 | 2018-06-29 | 东北大学 | A kind of hot hydrostatic profile device |
| CN111331545A (en) * | 2020-04-03 | 2020-06-26 | 中核核电运行管理有限公司 | Electric device for installing thermocouple mechanical seal of reactor pressure vessel |
-
2014
- 2014-10-21 CN CN201420608707.6U patent/CN204222260U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215038A (en) * | 2018-01-12 | 2018-06-29 | 东北大学 | A kind of hot hydrostatic profile device |
| CN111331545A (en) * | 2020-04-03 | 2020-06-26 | 中核核电运行管理有限公司 | Electric device for installing thermocouple mechanical seal of reactor pressure vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rapidly opened and closed type safe hot-isostatic pressure device Effective date of registration: 20170928 Granted publication date: 20150325 Pledgee: Industrial Commercial Bank of China Ltd Shifang branch Pledgor: Shifang Tongjia Machinery Co., Ltd. Registration number: 2017990000934 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |