CN101940892A - Heated-air circulation method and device of autoclave - Google Patents
Heated-air circulation method and device of autoclave Download PDFInfo
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- CN101940892A CN101940892A CN2009102536205A CN200910253620A CN101940892A CN 101940892 A CN101940892 A CN 101940892A CN 2009102536205 A CN2009102536205 A CN 2009102536205A CN 200910253620 A CN200910253620 A CN 200910253620A CN 101940892 A CN101940892 A CN 101940892A
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Abstract
The present invention provides a heated-air circulation method and device of an autoclave, solving the further problem of air circulation method and device of an autoclave raised by the inventor of the application. The heat transmission efficiency of shaped materials can further be improved, and simultaneously a labor-saving running can be carried out. A muffle furnace is disposed in a pressure container for supplementing heat to the air circulating in the muffle furnace, therefore, materials in the pressure container are pressurized, heated and cooled so as to splice and shape the shaped materials. Spiral flows generating mixed flows and turbulent flows along the main flow of the air of a long shaft in the muffle furnace are formed.
Description
Technical field
The present invention relates to be used for hot air circulation method and device thereof with moulding material pressurization, heating, sclerosis, bonding, the autoclave that is shaped.
Background technology
Laminate structures in order will to use the time, that used composite (FRP, CFRP etc.) as parts such as airborne vehicle, racing car, industrial machines or strengthen that the moulding material of adjusting glass, plasma display glass etc. pressurizes, heats, sclerosis, bonding, be shaped, can use the hot air circulation method and the device thereof of autoclave.In the past, as the material that bonding or crimping is shaped in autoclave, pressurize, hot air circulation method in the autoclave when heating, for example Japanese kokai publication sho 58-62018 communique, spy open clear 60-258996 communique, spy and open clear 61-94742 communique, spy and open the method etc. that clear 62-28228 communique, spy are opened flat 2-14730 communique record, and majority is by known.
The hot air circulation method of these autoclaves is implemented as follows.After being contained in moulding material and anchor clamps, instrument and chassis in the working region simultaneously, with a door seal-off pressure container, open valve simultaneously, in pressure vessel, supply with gases at high pressure from pressurized equipment (usually), moulding material is pressurizeed with respect to anchor clamps, instrument.On the other hand, drive motor makes the circulating fan rotation, attract this gas to be sent to separate ventilation road direction along the revolution of pressure vessel diapire on one side in the radiation direction on one side, and to circulate through air duct to reveal by heater, cooler heating, the above-mentioned gases at high pressure regulated.
And, along the pressure vessel inwall, with the Muffle furnace outer wall between approximate horizontal the ground high temperature, the gases at high pressure that flow through contact and reverse with the other end (door) wall of pressure vessel, flow in the working region from a side's of Muffle furnace peristome, flow along moulding material, anchor clamps, instrument and chassis approximate horizontal ground, formed through cooler, heater and air duct again and be recycled such circular flow that fan side attracts.
In the autoclave in the past that has adopted above-mentioned such hot air circulation mode (being called the horizontal cyclic type for the time being), owing to high pressure, high-temperature gas along continuous straight runs in the autoclave are flowed by a circulating fan, so, at gas (in the working region) from upstream side downstream the way of side flow, with heat is given with the amount of moulding material (comprising anchor clamps, instrument and chassis) correspondingly, the atmosphere temperature in downstream reduces.
In this type, because atmosphere gas flows in the horizontal direction along long material, so flow velocity is even, still, because of the influence of chassis and material, the upper side of working region flows easily near the central portion of long axis direction, and the tendency that produces bias current is arranged.And, be under the situation of abnormity at moulding material, the velocity flow profile disorder in the working region produces deviation on the Temperature Distribution of atmosphere gas, wind speed.And even from the mechanical realization aspect, because the load heat is also big than the remarkable change in top one side of siege portion of Muffle furnace, so in the direction towards bed surface, temperature also descends easily, gas flow rate also reduces.In a word, in when work, in the working region in the area of space, produce temperature difference at the flow direction up and down of atmosphere gas.If generation is inhomogeneous on the Temperature Distribution of the atmosphere gas in space in the working region, then the molded item quality after the processing also might produce deviation, must be abundant on process time, thereby influence operating efficiency.
Different with above-mentioned horizontal cyclic type, as the circulation path of the high pressure in the autoclave, heated air, the mode that is called the cross section circular form is by known.It is such structure: one at one end opening possessed in the cylindrical pressure vessel of sealed door and with it Muffle furnace of both ends open be set with one heart roughly in the space, between above-mentioned pressure vessel inwall and Muffle furnace outer wall, form separate ventilation road (air duct), simultaneously, the Muffle furnace furnace inner space as the working region, is housed in moulding material, anchor clamps, instrument and chassis etc. in this space.
And, the interior space of above-mentioned pressure vessel (Muffle furnace) is become a plurality of zones with the mode zoning in the long axis direction non-boundary, in each zone, possesses the meet at right angles stirring motor of rotating shaft of direction of axis with pressure vessel (or Muffle furnace) along the long axis direction configuration of the external wall of upper portion of pressure vessel respectively, make this rotating shaft connect pressure vessel wall and in the separate ventilation road, extend, at front end the stirring fan is installed respectively, and they are disposed in the separate ventilation road.
In addition, in each zone, on the Muffle furnace diapire, dispose heater, cooler opposite to each other respectively overlappingly with above-mentioned stirring fan.In addition, each stirs the gas suction inlet of fan respectively to the muffle wall on opposite opening, wears the connected entrance in space in separate ventilation road and the working region respectively at the allocation position of each heater, cooler.
And, top surface side in pressure vessel is disposed at the stirring fan in the outside of Muffle furnace, if be rotated by the driving of stirring motor, suck gas in the working region from suction inlet, and its left and right directions at the ventilation trackside is centrifugal along the pressure vessel inwall, air-supply (direction of arrow), then the gas in the separate ventilation road is squeezed into air-flow, in the bottom connected entrance flows into Muffle furnace and form upwelling, at this moment, heat, adjust, send in the working region by heater, cooler.This gas is carried out heating, adjustment during by heater, cooler, and then by the moulding material process of (comprising anchor clamps, instrument and chassis), forms and return the such cross section circular flow that stirs fan.
The cross section circular flow of above-mentioned explanation, roughly generation independently respectively in each zone in the mode zoning of the long axis direction non-boundary of pressure vessel.The control of heater, cooler is carried out in each zone, regulated the temperature of the atmosphere in the area of space in the working region.But, in the working region, stir between each circular flow that fan rises at the heater at the bottom of Muffle furnace, cooler side direction, because there is not the border, so, the situation of mutual interference is arranged certainly.In addition, control heating-up temperature mutually, the temperature that can make the atmosphere of long axis direction in the working region is homogeneous as much as possible.
The cross section circular flow of the gas that the rotation of fanning owing to this stirring produces, in the separate ventilation road that is formed between pressure vessel inwall and the Muffle furnace outer wall, flow down to down either side along the pressure vessel internal perisporium, connected entrance by near the heater the bottom that is disposed at autoclave, cooler, flow in the working region, the opening through the Muffle furnace end face returns the suction inlet that stirs fan again.
In a word, heated air flows along the pressure vessel inwall independently in each zone, circulation in working region (each zone), and the mobile key element of the long axis direction of Muffle furnace (working region) is not brought influence energetically.That is, this air-flow can be understood as the shape that has occurred the gas hot blast stream of above-mentioned horizontal cyclic type in each regional cross section in Muffle furnace.But difference is that in the working region, heated air flows in the direction that meets at right angles with respect to the face (length direction) that forms material (comprising anchor clamps, instrument and chassis).
Adopting above-mentioned such hot air circulation mode (at this, be called the cross section circular form) autoclave in the past in, heated air is almost circulation independently in each zone, the atmosphere temperature of the long axis direction in the working region, for example in connection (adjacency) part in each zone, become the curve that hangs down some than average.
In the circular flow of this type, as mentioned above, because atmosphere gas flows in the direction that meets at right angles with respect to long material, so, according to the shape or the loading form of moulding material, in the zone, generated and produced the position of flowing hardly.Therefore, the multilayer that can not form material is stacked, even stacked one deck, in the above with the following temperature difference that also produces sometimes.In addition, do not conform to the processing that is suitable for long material.Conclusion is got up, and as mentioned above, in the autoclave of structure, gas circulating in the past, has rapidoprint length long more, the tendency that the difference of the atmosphere temperature of upstream side and downstream portion is big more.And because even from the mechanical realization aspect, the load heat also becomes greatly than top part significantly one side of siege portion, so in the direction towards bed surface, temperature also descends easily, gas flow rate also reduces.Air-flow in the working region and moulding material meet at right angles under the situation of direction, are easy to generate temperature difference sometimes in the top and bottom of moulding material, generate the position that does not produce air-flow.The velocity flow profile disorder produces deviation on the Temperature Distribution of atmosphere gas, wind speed.
And, if the temperature distributing disproportionation one of the atmosphere gas in the working region then may produce deviation on molded item quality, also need to be careful the packing method of moulding material, and must be abundant on process time, the operating efficiency of autoclave influenced.Particularly, follow the lightweight of high speed, body, multipurposeization as the fiber-reinforced plastic of the development goal of nearest airborne vehicle is made progress, long size requires improving rapidly with the integral body of the one process equipment of composite, has become the anxious situation of long size with autoclave of early seeking to be provided with.
Therefore, the application's applicant has proposed to solve gas circulation method, the device of the autoclave of each above-mentioned unaccommodated present situation.Patent documentation 1: No. 4109660 communique of Japan's special permission
The gas circulation method of this autoclave (device) is as Figure 6 and Figure 7, in pressure vessel 2, and the outer wall of the Muffle furnace 3 of the both ends open that roughly is provided with one heart of this container and above-mentioned pressure vessel 2 inwalls between separate ventilation road 4 is set, with an end of above-mentioned Muffle furnace 3 cooler 16 is set in abutting connection with ground, primary heater 15, simultaneously, driving is with respect to cooler 16, primary heater 15 in series is disposed at the circulating fan 8 of an end of pressure vessel 2, by cooler 16, primary heater 15 attracts the gas in the Muffle furnace 3 and makes it circulation in separate ventilation road 4, other end counter-rotating at pressure vessel 2, return again in the Muffle furnace 3, forming circulating path as described above and in pressure vessel 2, material is being pressurizeed, heating, cooling, in the autoclave with the bonding shaping of moulding material, to become a plurality of zones with the mode zoning that the border is not set at long axis direction in the above-mentioned Muffle furnace, in each zone, the long axis direction devices spaced apart of the outer wall of pressure vessel 2 be provided with and stir with motor 13, the axle of above-mentioned motor 13 is configured in the rectangular direction in major axis axle center with respect to pressure vessel 2, make its end connect above-mentioned separate ventilation road 4 and Muffle furnace 3 walls and reach in the above-mentioned stove, at the front end of above-mentioned axle stirring fan 14 is installed, on Muffle furnace 3 madial walls, auxiliary heater 17 is set accordingly therewith, by the gas make-up moulding material of each auxiliary heater 17 to circulation in Muffle furnace 3, anchor clamps, the heat that instrument etc. consume, on the other hand, stir by stirring fan 14, mix said flow, the main middle mixed flow that takes place that flows of the gas in Muffle furnace 3, turbulent flow.
And, to become a plurality of zones with the mode zoning that the border is not set at long axis direction in the Muffle furnace 3, configuration temperature-control sensor J, J1, J2, J3, J4 in each zone, based on the signal of regulating sensor J, J1, J2, J3, J4 from said temperature, control the output of auxiliary heater 17 according to the mode that the atmosphere temperature in each zone is remained setting value.
By constituting in this wise, promptly, to become each zone with the mode zoning that the border is not set at long axis direction in the working region 10, configuration auxiliary heater 17 in each zone, replenish gas in the zone from the upstream side heat that material etc. absorbs that is formed the way of side flow downstream, the temperature maintenance of the heated air stream by will be in the horizontal direction is for roughly certain, the temperature difference that can significantly reduce the atmosphere gas that produces between upstream side and downstream (for example, in 2 ℃), can expect that the homogeneity of the formed products in autoclave is shaped, accurately machined good degree, with bonding, the shortening of the time of forming process.
In addition, owing in each zone, disposed auxiliary heater 17, correspondingly on the heat distribution of heater 17, may produce inhomogeneous therewith, so, be provided with near the top in the working region and stir fan 14, make hot blast diffusion, circulation, realize the equalization of the Temperature Distribution of atmosphere.But, because 14 stirrings of in each zone, carrying out gas of above-mentioned stirring fan, so the gas flow that flows to the downstream in the working region along long axis direction from upstream side is called the air quantity of the hot air circulation fan 8 on the bottom that is disposed at pressure vessel 2.
And, by main flow, fan 14 in the direction of quadrature by stirring and make heated air diffusion, mixing complementaryly the heated air in the working region 10, the bias current of the gas that produces in right-angle cross-section is in the prior art reduced.Its result, the velocity deviation of the gas that contacts with moulding material reduces, and temperature difference is reduced.Therefore, all roughly certain in the mean flow rate of gas arbitrary cross section in the horizontal direction, can eliminate the velocity deviation in the cross section, the Temperature Distribution of the gas of horizontal direction roughly can be remained on necessarily.
Summary of the invention
Invent problem to be solved
As mentioned above, the gas circulation method (device) of the autoclave that proposes according to the applicant though solved the problem that gas circulation method (device) is before had, has newly been distinguished to have following problem.Promptly, configuration auxiliary heater 17 in each zone, be provided with near the top in the working region and stir fan 14, make the hot blast diffusion, circulation, realize the equalization that atmosphere temperature distributes, but, as Figure 6 and Figure 7, the stirring stream that produces because of this stirring fan 14 is in each zone, in with respect to the cross section of the central axial direction quadrature of Muffle furnace 3, form respectively, therefore, produces following problem: if 1. from stirring below (center of Muffle furnace 3) the attraction gas of fan 14, merely discharge and stir stream to circumferencial direction, then reality is, as shown in Figure 7, stirring is drifted moving, be difficult to fully arrive the bottom of Muffle furnace 3, be difficult to play the effect of the integral body of moulding material 11 (machined material) being carried out equably heat propagation; 2. the stirring of adjacency fan 14 is because the stirring stream that must bear as turbulent flow stirs, so driving force that need be big is simultaneously because of becoming turbulent flow, so be difficult to the reliable contact condition of whole formation usually with respect to moulding material 11 (machined material); 3. because the interference mutually of the stirring in the zone of adjacency stream, so, for the main flow that flows to circulating fan 8 one sides, not only hinder the continuity of flowing smoothly, be difficult to obtain heat propagation efficiently, and the driving resistance of circulating fan 8 increases for moulding material 11 (machined material).
The objective of the invention is to, the gas circulation method of the autoclave that elimination the present application people has proposed, the further problem in the device can make the heat propagation efficient for moulding material further improve, and simultaneously, realize laborsaving running.
In order to solve the means of problem
For achieving the above object, the invention provides a kind of hot air circulation method of autoclave, in pressure vessel, the interval that separates regulation at its radial direction, with this container the Muffle furnace of both ends open is set roughly concentric shape, and described pressure vessel inwall between form the separate ventilation road, with a square end portion of described Muffle furnace main heating cooler is set in abutting connection with ground, simultaneously, drive arrangements is in the circulating fan of an end of described pressure vessel, attract the gas in the described Muffle furnace and make it to circulate by described main heating cooler to described separate ventilation road, other end counter-rotating at described pressure vessel, turn back to again in the described Muffle furnace, thus, form the circulating path of main air-flow, to not be divided into a plurality of zones the forntier region not to be set in the described Muffle furnace at long axis direction, in each zone, long axis direction devices spaced apart ground at the outer wall of described pressure vessel is provided with at least two first and second agitators, should form stirring stream in the zone at each, on the sidewall in opposite directions in described Muffle furnace auxiliary heater is set, by each auxiliary heater to the gas make-up heat that in described Muffle furnace, circulates, thus, in described pressure vessel, material is pressurizeed, heating, cooling, moulding material is bonding, be shaped, it is characterized in that, gas in attracting from described separate ventilation road to described Muffle furnace by described first agitator from a side, and from the opposing party according to the major axis with described Muffle furnace is, be formed centrally towards the mode of described circulating fan one side's spiral flow and discharge at a certain angle with respect to described major axis, attract this spiral flow by described second agitator from a side, and be that the mode of the spiral flow at center is discharged according to forming major axis with described Muffle furnace from the opposing party, thus, formed in main the flowing of the gas of the major axis in described Muffle furnace mixed flow has taken place, the spiral flow of turbulent flow.
For achieving the above object, the invention provides a kind of heated air circulation device of autoclave, in pressure vessel, the interval that separates regulation at its radial direction, with this container the Muffle furnace of both ends open is set roughly concentric shape, and described pressure vessel inwall between form the separate ventilation road, with a square end portion of described Muffle furnace main heating cooler is set in abutting connection with ground, simultaneously, drive arrangements is in the circulating fan of an end of described pressure vessel, attract the gas in the described Muffle furnace and make it to circulate by described main heating cooler to described separate ventilation road, other end counter-rotating at described pressure vessel, turn back to again in the described Muffle furnace, thus, form the circulating path of main air-flow, to not be divided into a plurality of zones the forntier region not to be set in the described Muffle furnace at long axis direction, in each zone, long axis direction devices spaced apart ground at the outer wall of described pressure vessel is provided with at least two first and second agitators, should form stirring stream in the zone at each, on the sidewall in opposite directions in described Muffle furnace auxiliary heater is set, by each auxiliary heater to the gas make-up heat that in described Muffle furnace, circulates, thus, in described pressure vessel, material is pressurizeed, heating, cooling, moulding material is bonding, be shaped, it is characterized in that, the heated air circulation device of described autoclave constitutes in such a way: in described first and second agitator, the mode towards described circulating fan one side's spiral flow of being formed centrally in according to the major axis with described Muffle furnace being is provided with respectively and attracts passage and exhaust passage, and described attraction passage is from the gas of side attraction in from described separate ventilation road to Muffle furnace; Described exhaust passage is discharged gas from the opposing party at a certain angle with respect to described major axis, thus, has formed the main middle spiral flow that mixed flow, turbulent flow take place that flows at the gas of the major axis in described Muffle furnace.
The effect of invention
According to the hot air circulation method of autoclave of the present invention and the heated air circulation device of autoclave, has following advantage: the stirring of the gas in the Muffle furnace that is undertaken by agitator is become along the spiral flow in circulating fan one side's Muffle furnace, and it is coexisted under the state of the interference between the main flow of the gas of doing one's utmost to avoid and flowing through towards the center of circulating fan one side ground in Muffle furnace, thus, heat propagation can be carried out, the driving force of agitator and circulating fan can be reduced simultaneously to the equalization of effective moulding material integral body of having utilized spiral flow.Other advantage of the present invention will be clear and definite from following record.
Description of drawings [0049] Fig. 1 is the cross section skeleton diagram of an embodiment of expression gas-recycling plant of the present invention; Fig. 2 is that the A-A of Fig. 1 of an embodiment of expression gas-recycling plant of the present invention is to looking cutaway view; Fig. 3 is the vertical view of an embodiment of expression gas-recycling plant of the present invention; Fig. 4 is the flow chart of the control device of expression gas-recycling plant of the present invention; Fig. 5 is the coordinate figure of the control temperature of expression gas-recycling plant of the present invention; Fig. 6 is the cross section skeleton diagram of the gas-recycling plant of expression prior art; Fig. 7 is the major part cutaway view of Fig. 6 of the gas-recycling plant of expression prior art.Symbol description 2: pressure vessel 3: Muffle furnace 4: separate ventilation road 5: main heating cooler 8: circulating fan 10: working region 13a: stir motor 14A: the first agitator 14B: the second agitator 17a: auxiliary heater 18: attract passage 19: the exhaust passage
The specific embodiment
When enforcement is of the present invention, the formation below preferred the use.At first, the exhaust passage of above-mentioned first and second agitator with respect to the angle of above-mentioned major axis preferably in the scopes of 10 degree～45 degree.By such angle, the spiral intervals that the exhaust of gas forms simultaneously, can form spiral swimmingly being fit to aspect the consideration heat propagation efficient.
In addition, preferably the interval of above-mentioned first agitator and second agitator is set greatlyyer with a helix pitch of the spiral flow of the angle discharge of regulation than mixing device from above-mentioned first.Usually, first agitator and second agitator are with the arranged spaced of a helix pitch (P) of the regulation that forms by agitator, but center and integral body as Muffle furnace, attraction force acts owing to the main flow that produces because of circulating fan, so, will form the spiral flow that the helix pitch than the regulation that forms because of the angle of exhaust passage more prolongs in the reality.Therefore, at the interval location bigger second agitator is set in advance, can carries out the continuity of spiral flow smoothly than such helix pitch.
Embodiment
Fig. 1 is the longitudinal section of an embodiment of implementing the device of method of the present invention, Fig. 2 be the A-A of Fig. 1 to looking cutaway view, Fig. 3 is a vertical view.Among the figure, overall structure, employed component name, shape, label symbol, except that the title difference of a part of parts, respectively with the invention described above applicant's narration as the autoclave in the documents 1 of patent in enumerated substantially the same.
The basic comprising of this device is as follows.In a side open end possesses the cylindrical pressure vessel 2 of sealable door (lid) 1, separate the compartment of terrain of regulation and the Muffle furnace 3 that this container 2 roughly is provided with both ends open with one heart shape at its radial direction, and above-mentioned pressure vessel 2 inwalls between formed separate ventilation road 4, be provided with to adjacency main heating cooler 5 (cooler 5a with an end (in diagram, being right-hand member) of above-mentioned Muffle furnace 3, heater 5b), simultaneously, by the circulating fan 8 of motor 7 drive arrangements in an end (being right-hand member in diagram) of above-mentioned pressure vessel 2, by above-mentioned main heating cooler 5 (cooler 5a, heater 5b) attracts the gas in the above-mentioned Muffle furnace 3 and making it to 4 circulations of above-mentioned separate ventilation road, the other end (being the left side in diagram) counter-rotating at above-mentioned pressure vessel 2, turn back to again in the above-mentioned Muffle furnace 3, thus, formed the circulating path of main air-flow, above-mentioned Muffle furnace 3 inherent long axis directions are not provided with the forntier region are divided into a plurality of zones, in each zone, the long axis direction devices spaced apart of the outer wall of above-mentioned pressure vessel 2 be provided with first to fourth agitator 14A, 14B, 14C, 14D, should form stirring stream in the zone at each, on the sidewall in opposite directions in above-mentioned Muffle furnace 3, long axis direction devices spaced apart ground at the outer wall of above-mentioned pressure vessel 2 is provided with auxiliary heater 17a respectively, 17b, 17c, 17d, by auxiliary heater 17a, 17b, 17c, 17d is to the gas make-up heat of circulation in above-mentioned Muffle furnace 3, thus, can in above-mentioned pressure vessel 2, material be pressurizeed, heating, cooling forms material adhesive, be shaped.
Particularly, in the present embodiment, first to fourth agitator 14A, 14B, 14C, 14D constitute in such a way.Promptly, above-mentioned working region 10 is not provided with the forntier region at long axis direction is divided into a plurality of zones, simultaneously, in each zone, disposed the meet at right angles agitator motor 13a of rotating shaft of direction of the axle center that possesses with said vesse 2 along the axis direction of the external wall of upper portion of cylindrical pressure vessel 2,13b, 13c, 13d, make its rotating shaft connect pressure vessel 2 walls, separate ventilation road (gas circulation road) 4 and Muffle furnace 3 walls and in working region 10, extend, at front end stirring fan 14a has been installed respectively, 14b, 14c, 14d, simultaneously, above-mentioned stirring fan 14a, 14b, 14c, 14d is disposed in working region 10 near the Muffle furnace 3 inwall end faces, stir respectively, mix the gas of circulation in by each zone of zoning respectively, but also possess following structure.
Promptly, constitute in such a way: in above-mentioned first to fourth agitator 14A, 14B, 14C, 14D, be provided with attraction passage 18 and exhaust passage 19 respectively, attracting passage 18 is the center with the major axis of above-mentioned Muffle furnace 3, according to the mode that forms towards above-mentioned circulating fan 8 one sides' spiral flow, attract from above-mentioned separate ventilation road 4 to the interior gas of above-mentioned Muffle furnace 3 from a side; Exhaust passage 19 is discharged gas from the opposing party at a certain angle with respect to above-mentioned major axis, thus, in main the flowing of the gas of the major axis in the above-mentioned Muffle furnace 3 mixed flow, turbulent flow takes place, and forms spiral flow simultaneously.Above-mentioned attraction passage 18 and exhaust passage 19 are integrally formed by panel beating with the housing of above-mentioned stirring fan 14a, 14b, 14c, 14d, and still, they also can constitute in split, and raw shaping material also can be different materials such as resin.
In addition, use in the horizontal outlet of the heated air of autoclave, in this zone, not have the leeway of working fully so stir fan 14a, 14b, 14c, 14d because be formed at the inwall of pressure vessel 2 and the separate ventilation road between Muffle furnace 3 outer walls 4.In addition, in each zone, with stir fan 14a, 14b, 14c, 14d are corresponding, have disposed auxiliary heater 17a, 17b, 17c, 17d on the forward surface of Muffle furnace 3 inwalls respectively.In addition, above-mentioned auxiliary heater 17a, 17b, 17c, 17d are provided with capacity thin in comparison and enlarged surface long-pendingly, and consider in such a way, that is, neither hinder gas along these surface circulations, can spread all over therebetween again, and heating equably.
The air-flow that the rotation of passing through this stirring fan 14a, 14b, 14c, 14d that is formed by above-mentioned attraction passage 18 and exhaust passage 19 produces, each the zone in as among Fig. 1 to Fig. 3 by shown in the thick-line arrow, thus, length direction central portion at moulding material, make the influence that is subjected to chassis, material and the air-flow of being partial to flowed to top from top to lower bottom part and from lower bottom part, form spiral flow.In addition, belong to above-mentioned first to fourth agitator 14A, 14B, the 14C in above-mentioned each zone, the configuration of 14D, the external wall of upper portion of unnecessary selection pressure container 2 for example, also can alternately distribute, dispose on the external wall of upper portion of container 2 bottom surface lateral walls or container and bottom surface lateral wall.
In addition, in the present embodiment, the angle for the above-mentioned major axis of exhaust passage 19 of above-mentioned first to fourth agitator 14A, 14B, 14C, 14D (angle that constitutes at the vertical line of overlooking when seeing and major axis intersects) is set at 20 degree.The angle of this exhaust is so long as in the scope of 10 degree～45 degree, just be fit to form effective spiral flow.
In addition, in the present embodiment, for according to the mode that is easy to form above-mentioned spiral flow to from above-mentioned separate ventilation road 4 gases to the above-mentioned Muffle furnace 3 give direction, the end on the separate ventilation road 4 between inwall that is formed at pressure vessel 2 and Muffle furnace 3 outer walls is provided with the rectifying wings body 4A that is made of multi-disc.This rectifying wings body 4A and above-mentioned attraction passage 18 and exhaust passage 19 are inclined to 20 degree equally.Thus, the gas that comes out from the end on separate ventilation road 4 contacts with the inwall end of pressure vessel 2 at a certain angle, and cycle is to Muffle furnace 3, and its spiral flow is attracted to the above-mentioned first agitator 14A swimmingly.
In addition, the interval of above-mentioned each agitator 14A, 14B, 14C, 14D is set to such an extent that ratio is big with a helix pitch of the spiral flow that the angle (20 degree) of regulation is discharged from above-mentioned each agitator 14A, 14B, 14C, 14D.This is to have supposed to extend owing to the main air-flow that relies on above-mentioned circulating fan 8 to flow through in Muffle furnace 3 causes this spiral flow, thus, is formed by above-mentioned each agitator 14A, 14B, 14C, 14D and to attract smoothly and discharge.
Turn back to Fig. 1 again, in each zone of working region 10, connect Muffle furnace top wall ground and be provided with temperature-control sensor J, J1, J2, J3, J4 respectively, they will be separately signal input to main temperature accommodometer TC, auxiliary temperature accommodometer TC1, TC2, TC3, TC4, be connected with heated air temperature controlling system in can regulating, control working region 10.
Fig. 4 represents an embodiment of the flow process of above-mentioned control system, main regulation sensor J and main temperature accommodometer TC link, accommodometer TC for the control of accepting temperature program(me) accommodometer TPC to regulate the atmosphere gas temperature of autoclave integral body, control main heating cooler 5 (cooler 5a, heater 5b) and circulating fan 8 respectively.Belonging to each regional aiding sensors J1, J2, J3, J4 disposes in such a way: the auxiliary temperature accommodometer TC1 in the allowed band of the control that is in main temperature accommodometer TC, TC2, TC3, TC4 input signal, control the electric power that auxiliary heater 17a, 17b, 17c, 17d are applied through each SCR1 (electric governor), SCR2, SCR3, SCR4.
When each regional atmosphere temperature breaks away from programmed values, the electric power that puts on auxiliary heater 17a, 17b, 17c, 17d is increased and decreased, regulate the heat that recyclegas is given, the atmosphere temperature that each is regional is controlled at the direction that turns back to setting value.Under the situation of present embodiment, agitator 14A, 14B, 14C, 14D are driven with the regulation rotating speed.
Fig. 5 is the figure that the atmosphere temperature of the long axis direction in the working region 10 is represented as coordinate figure, and among the figure, transverse axis is the length L from the upstream side of working region to the downstream, and the longitudinal axis is atmosphere temperature t ℃.Here we can see that towards the downstream, temperature is similarly kept intensification from the upstream side of working region.The atmosphere temperature of this horizontal cyclic type air-flow in working region 10 along moulding material 11 flow down during, be formed material 11, anchor clamps, instrument, chassis etc. are captured heat, the tendency that has temperature to reduce gradually, but, by rotation from the upstream side control of the auxiliary heater 17a, the 17b that connect of side, 17c, 17d downstream and agitator 14A, 14B, 14C, 14D, at every turn can both be by additional heat, the temperature of the atmosphere gas of the each several part in the working region 10 is controlled in the desirable scope.Therefore, both be applicable to the shaping processing of long material, special-shaped formed products, and also can have carried out the filling of stacked multilayer.Because the temperature of the atmosphere gas of the each several part in the working region 10 can be controlled in desirable scope, so, both do not produced the possibility of the machining deviation of part in special-shaped material, formed products, also shortened operation (work) time, operating efficiency improves.
According to said apparatus, method of the present invention can be implemented as follows.Promptly, in an open end possesses the pressure vessel 2 of tubular of sealable door (lid) 1, the interval that separates regulation at its radial direction, with the Muffle furnace 3 that both ends open roughly is set with container 2 concentric shape, and above-mentioned pressure vessel 2 inwalls between form separate ventilation road 4, with an end of above-mentioned Muffle furnace 3 main heating cooler 5 is set in abutting connection with ground, simultaneously, drive arrangements is in the circulating fan 8 of an end of above-mentioned pressure vessel 2, attract the gas in the above-mentioned Muffle furnace 3 and make it to circulate by above-mentioned main heating cooler 5 to above-mentioned separate ventilation road 4, other end counter-rotating at above-mentioned pressure vessel 2, turn back to again in the above-mentioned Muffle furnace 3, form the circulating path of main air-flow thus.
And, to not be divided into a plurality of zones the forntier region not to be set in the above-mentioned Muffle furnace 3 at long axis direction, in each zone, the long axis direction devices spaced apart of the outer wall of above-mentioned pressure vessel 2 first to fourth agitator 14A is set, 14B, 14C, 14D, should form stirring stream in the zone at each, on the sidewall in opposite directions in above-mentioned Muffle furnace 3 auxiliary heater 17a is set, 17b, 17c, 17d, by each auxiliary heater 17a, 17b, 17c, 17d is to the gas make-up heat of circulation in above-mentioned Muffle furnace 3, thus, in above-mentioned pressure vessel 2, material is pressurizeed, heating, cooling, moulding material is bonding, be shaped.
At this moment, attract from above-mentioned separate ventilation road 4 gas to the above-mentioned Muffle furnace 3 by the above-mentioned first agitator 14A from a side, and from the opposing party according to the major axis with above-mentioned Muffle furnace 3 is, be formed centrally towards the mode of above-mentioned circulating fan 8 one sides' spiral flow and discharge at a certain angle with respect to above-mentioned major axis, attract this spiral flow by the above-mentioned second agitator 14B from a side, and be that the mode of the spiral flow at center is discharged according to forming major axis with above-mentioned Muffle furnace 3 from the opposing party, thus, formed the main middle mixed flow that takes place that flows at the gas of the major axis in above-mentioned Muffle furnace 3, the spiral flow of turbulent flow is by the 3rd and the 4th agitator 14C, 14D carries out this process repeatedly.This spiral flow is attracted to above-mentioned circulating fan 8.
At this, the exhaust passage 19 of above-mentioned first to fourth agitator 14A, 14B, 14C, 14D is set at 20 degree with respect to the angle of above-mentioned major axis (angle that constitutes at the vertical line of overlooking when seeing and major axis intersects).But this angle just can realize forming the purpose of effective spiral flow as long as in the scope of 10 degree～45 degree.
In addition, the interval of going up each agitator 14A, 14B, 14C, 14D is set to such an extent that ratio is big with a helix pitch of the spiral flow that the angle of regulation is discharged from above-mentioned each agitator 14A, 14B, 14C, 14D, by attraction, formed the spiral flow that extends to above-mentioned circulating fan 8.
Utilize possibility on the industry
Even the present invention is for the huge autoclave of working region capacity, also can improve the heat propagation efficient to the moulding material in the area of space in the working region, and realize saving and to quantize, make economically the stable formed products of no machining deviation, thus, can help the development of industry of the shaping of airborne vehicle, other large-scale laminated materials that need stay in grade.
Claims (4)
1. the hot air circulation method of an autoclave, in pressure vessel, the interval that separates regulation at its radial direction, with this container the Muffle furnace of both ends open is set roughly concentric shape, and described pressure vessel inwall between form the separate ventilation road, with a square end portion of described Muffle furnace main heating cooler is set in abutting connection with ground, simultaneously, drive arrangements is in the circulating fan of an end of described pressure vessel, attract the gas in the described Muffle furnace and make it to circulate by described main heating cooler to described separate ventilation road, other end counter-rotating at described pressure vessel, turn back to again in the described Muffle furnace, thus, form the circulating path of main air-flow, to not be divided into a plurality of zones the forntier region not to be set in the described Muffle furnace at long axis direction, in each zone, long axis direction devices spaced apart ground at the outer wall of described pressure vessel is provided with at least two first and second agitators, should form stirring stream in the zone at each, on the sidewall in opposite directions in described Muffle furnace auxiliary heater is set, by each auxiliary heater to the gas make-up heat that in described Muffle furnace, circulates, thus, in described pressure vessel, material is pressurizeed, heating, cooling, moulding material is bonding, be shaped, it is characterized in that
Gas in attracting from described separate ventilation road to described Muffle furnace by described first agitator from a side, and from the opposing party according to the major axis with described Muffle furnace is, be formed centrally towards the mode of described circulating fan one side's spiral flow and discharge at a certain angle with respect to described major axis, attract this spiral flow by described second agitator from a side, and be that the mode of the spiral flow at center is discharged according to forming major axis with described Muffle furnace from the opposing party, thus, formed at the main middle generation mixed flow that flows of the gas of the major axis in described Muffle furnace, turbulent spiral flow.
2. the heated air circulation device of an autoclave, in pressure vessel, the interval that separates regulation at its radial direction, with this container the Muffle furnace of both ends open is set roughly concentric shape, and described pressure vessel inwall between form the separate ventilation road, with a square end portion of described Muffle furnace main heating cooler is set in abutting connection with ground, simultaneously, drive arrangements is in the circulating fan of an end of described pressure vessel, attract the gas in the described Muffle furnace and make it to circulate by described main heating cooler to described separate ventilation road, other end counter-rotating at described pressure vessel, turn back to again in the described Muffle furnace, thus, form the circulating path of main air-flow, to not be divided into a plurality of zones the forntier region not to be set in the described Muffle furnace at long axis direction, in each zone, long axis direction devices spaced apart ground at the outer wall of described pressure vessel is provided with at least two first and second agitators, should form stirring stream in the zone at each, on the sidewall in opposite directions in described Muffle furnace auxiliary heater is set, by each auxiliary heater to the gas make-up heat that in described Muffle furnace, circulates, thus, in described pressure vessel, material is pressurizeed, heating, cooling, moulding material is bonding, be shaped, it is characterized in that
The heated air circulation device of described autoclave constitutes in such a way: in described first and second agitator, the mode towards described circulating fan one side's spiral flow of being formed centrally in according to the major axis with described Muffle furnace being is provided with respectively and attracts passage and exhaust passage, and described attraction passage is from the gas of side attraction in from described separate ventilation road to Muffle furnace; Described exhaust passage is discharged gas from the opposing party at a certain angle with respect to described major axis, thus, has formed the main middle spiral flow that mixed flow, turbulent flow take place that flows at the gas of the major axis in described Muffle furnace.
3. the heated air circulation device of autoclave as claimed in claim 2 is characterized in that, the exhaust passage of described first and second agitator is spent in the scope of～45 degree 10 with respect to the angle of described major axis.
4. as the heated air circulation device of claim 2 or the described autoclave of claim 3, it is characterized in that the interval of described first agitator and second agitator is set greatlyyer with a helix pitch of the spiral flow of the angle discharge of regulation than mixing device from described first.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2009-174773 | 2009-07-04 | ||
| JP2009174773A JP2011012945A (en) | 2009-07-04 | 2009-07-04 | Hot air circulation method and device for autoclave |
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| CN101940892A true CN101940892A (en) | 2011-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961855A (en) * | 2017-12-25 | 2019-07-02 | 哈尔滨工业大学 | A kind of inner cooling channel of nuclear fusion first wall based on swirl cooling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5737995B2 (en) | 2011-02-21 | 2015-06-17 | 三菱重工業株式会社 | Autoclave and method for heat curing molding material |
| JP5702261B2 (en) * | 2011-10-25 | 2015-04-15 | 株式会社ブリヂストン | Vulcanization can |
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| CN103781608B (en) | 2011-07-15 | 2016-06-22 | 株式会社普利司通 | Vulcanizing tank and tire manufacturing method |
| JP6383615B2 (en) * | 2014-09-10 | 2018-08-29 | 株式会社ブリヂストン | Vulcanization can and tire manufacturing method |
| CN110682484A (en) * | 2019-10-18 | 2020-01-14 | 佛山市盟思拉伸机械有限公司 | Oven device and wind channeling damping structure |
| CN113878970B (en) * | 2021-10-12 | 2023-05-26 | 天津北玻玻璃工业技术有限公司 | Super-large laminated glass autoclave |
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| CN116078275B (en) * | 2023-01-03 | 2024-06-07 | 东方电气集团东方锅炉股份有限公司 | High-efficiency gas distributor and vertical large-scale reactor |
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| JP2011012945A (en) | 2011-01-20 |
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Application publication date: 20110112 |