CN204892931U - Heat accumulation formula low pressure casting heat preservation stove - Google Patents
Heat accumulation formula low pressure casting heat preservation stove Download PDFInfo
- Publication number
- CN204892931U CN204892931U CN201520686998.5U CN201520686998U CN204892931U CN 204892931 U CN204892931 U CN 204892931U CN 201520686998 U CN201520686998 U CN 201520686998U CN 204892931 U CN204892931 U CN 204892931U
- Authority
- CN
- China
- Prior art keywords
- air
- pipe
- hot
- thermal
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model provides a heat accumulation formula low pressure casting heat preservation stove, including furnace body and heat accumulation device, be equipped with business turn over burner gas pipe on the furnace body, be connected with external breather pipe on the business turn over burner gas pipe, the heat accumulation device is established between external breather pipe and business turn over burner gas pipe, the heat accumulation device includes box and the heat accumulator that is located the box, set up on the box and export with external breather pipe and pressurization import and the pressure release that business turn over burner gas pipe is linked together respectively, so that when filling the type, compressed air is in proper order by in external breather pipe and the pressurization import getting into the, and the hot -air in the promotion box is exported by the pressure release in proper order and business turn over burner gas pipe gets into in the furnace body, and after making the casting accomplish during the pressure release, hot -air in the furnace body is exported by business turn over burner gas pipe and pressure release in proper order and flows back to to the box in, and the air in the promotion box is discharged through pressurization import and external breather pipe in proper order. The utility model provides a heat accumulation formula low pressure casting heat preservation stove, most hot air cycle utilizes, has reduced the energy consumption that the internal air of heating furnace produced.
Description
Technical field
The utility model relates to a kind of holding furnace, more specifically, relates to a kind of heat accumulating type low-pressure casting thermal insulation furnace.
Background technology
At present, existing low-pressure casting thermal insulation furnace is mainly using compressed air as pneumatic supply, the air pressure in holding furnace is controlled by the folding of air inlet pipe and escape pipe, air inlet pipe is provided with normally closed solenoid valve and controls air inlet air pressure by PLC etc., escape pipe is provided with normally open solenoid valve, make to keep suitable with air pressure outside stove in stove when not carrying out Foundry Production, after avoiding stove internal cause long-time heating, pressure increases and jeopardizes holding furnace safety, when Foundry Production by closed electromagnetic valve escape pipe, and set air inlet air pressure, the liquation in holding furnace is made to fill type in mould by stalk, cast rear closedown air inlet pipe and open escape pipe venting.Because the compressed air entered in stove is generally room temperature, and the gas of releasing is high-temperature gas, for maintaining the melt temperature of holding furnace, need the gas in stove and liquation laser heating, waste much electricity, also cause foundry's temperature to raise, especially in summer, shopwork environment is deteriorated, and employee is very arduous.
Utility model content
The utility model is intended at least to solve one of technical problem existed in prior art.
For this reason, the purpose of this utility model is, provides a kind of heat accumulating type low-pressure casting thermal insulation furnace that effectively can improve the cyclic utilization rate of hot-air in holding furnace.
For achieving the above object, embodiment of the present utility model provides a kind of heat accumulating type low-pressure casting thermal insulation furnace, comprising: body of heater, and described body of heater is provided with turnover furnace gas pipe, and described turnover furnace gas pipe is connected with external breather pipe, and regenerative apparatus, described regenerative apparatus is located between described external breather pipe and described turnover furnace gas pipe, described regenerative apparatus comprises casing and is positioned at the heat storage of described casing, described casing offers the pressurization import and pressure relief vent that are connected with described turnover furnace gas pipe with described external breather pipe respectively, during to make casting filling, compressed air enters in described casing by described external breather pipe and described pressurization import successively, and the hot-air promoted in described casing enters in described body of heater by described pressure relief vent and described turnover furnace gas pipe successively, and after casting is completed during pressure release, hot-air in described body of heater flows back in described casing by described turnover furnace gas pipe and described pressure relief vent successively, and the air promoted in described casing is discharged through described pressurization import and described external breather pipe successively.
The heat accumulating type low-pressure casting thermal insulation furnace that the utility model above-described embodiment provides, comprise body of heater and regenerative apparatus, regenerative apparatus comprises casing and is positioned at the heat storage of casing, during casting filling, compressed air enters in casing by external breather pipe and pressurization import successively, and the hot-air promoted in casing enters in body of heater by pressure relief vent and turnover furnace gas pipe successively, now, compressed air is stayed in regenerative apparatus, hot-air in regenerative apparatus enters in body of heater, in body of heater, pressure raises, and aluminium liquid is by stalk press-in die, when having cast rear pressure release, hot-air in body of heater flows back in casing by turnover furnace gas pipe and pressure relief vent successively, and the compressed air entered at cavity filling process promoted in casing is discharged through pressurization import and external breather pipe successively, now, the hot-air of high temperature is full of heat storage again, next time is when filling type, the compressed air hot-air again promoted in regenerative apparatus enters in body of heater, during pressure release, hot-air flows back in regenerative apparatus again, repeatedly carry out the process of filling type and pressure release, although filling in type and pressure leak process, hot-air inevitably has the loss of volume and heat, but most of hot-air in heat storage and body of heater back and forth repeatedly, thus achieve recycling of most of hot-air, on the one hand, due to the insulation effect of heat storage, the hot air temperature entered when filling type in body of heater is higher, the energy consumption that holding furnace produces because of the air in heating furnace body can be reduced, on the other hand, during pressure release, hot-air is stored in heat storage, avoid the problem that hot-air directly enters workshop and the workshop temperature that causes raises, simultaneously, hot-air flows through heat storage repeatedly, heat storage carries out continuous print purification to hot-air, improve the cleannes of hot-air, thus ensure that the quality of aluminium liquid in body of heater, and then ensure that the quality of cast member, and hot-air is repeatedly through heat storage, also can remove the steam in hot-air, the purity of further raising hot-air.
It should be noted that, when first time casting filling, because holding furnace does not use for a long time, in regenerative apparatus, the temperature of hot-air is lower, but when filling type after second time and second time, the temperature again flowing back to the hot-air in regenerative apparatus after body of heater heating will raise, and can reach the object of the air reduced in holding furnace heating furnace body and the energy consumption produced; For the ease of changing regenerative apparatus, the modes such as regenerative apparatus support can be arranged on the outside of body of heater.
In addition, the heat accumulating type low-pressure casting thermal insulation furnace that the utility model above-described embodiment provides also has following additional technical feature:
According to an embodiment of the present utility model, the storage volume in described casing is more than or equal to the volume passing into the air in described body of heater needed for one-step casting.
In above-described embodiment, the hot-air volume stored in casing is more than or equal to the volume of the air passed into needed for one-step casting, when making casting filling, the hot-air of memory box storage can meet the amount passing into the air in body of heater needed for one-step casting completely, thus avoid the compressed air passed into by external breather pipe as far as possible and enter body of heater, thus achieve the recycling of hot-air in repeatedly casting to a greater extent, thus reduce further the energy consumption of air in holding furnace heating furnace body.Certainly, when the volume of body of heater, the varying in size of cast member, the amount completing the air needed for one-step casting is different, should according to the volume of the hot-air that can store in actual conditions appropriate design regenerative apparatus, meet the amount of the air needed for one-step casting as far as possible, but regenerative apparatus volume also will be avoided excessive simultaneously, take large quantity space, therefore in practical application, should according to the volume of actual conditions appropriate design regenerative apparatus.
In above-mentioned arbitrary technical scheme, preferably, described external breather pipe comprises and the air inlet pipe connect and escape pipe, described air inlet pipe is provided with the first magnetic valve, described escape pipe is provided with the second magnetic valve, wherein, described first magnetic valve is normally closed solenoid valve, and described second magnetic valve is normally open solenoid valve.
In above-described embodiment, external breather pipe comprises and the air inlet pipe connect and escape pipe, and when casting filling, the first magnetic valve is opened, the second closed electromagnetic valve, and compressed air enters in regenerative apparatus through air inlet pipe and external breather pipe successively; When pressure release, the first closed electromagnetic valve, the second magnetic valve is opened, and after the hot-air in body of heater flows back to regenerative apparatus, is released by the compressed air in regenerative apparatus, and is expelled to outside body of heater through external breather pipe and escape pipe; When not casting, the first closed electromagnetic valve, the second magnetic valve is opened, and to keep suitable with the air pressure outside stove in stove, after avoiding stove internal cause long-time heating, air pressure increases the safety jeopardizing holding furnace.
According to an embodiment of the present utility model, described heat accumulating type low-pressure casting thermal insulation furnace also comprises: the first cylinder, described first cylinder is located between described external breather pipe and described pressurization import, the two ends of the cylinder body of described first cylinder are respectively equipped with the first tube connector and the second tube connector that are connected with described pressurization import with described external breather pipe, and are provided with reciprocating first piston in described cylinder body.
In above-described embodiment, during casting filling, first magnetic valve is opened, second closed electromagnetic valve, compressed air enters the first cylinder one end near the first tube connector by air inlet pipe, the first tube connector, promotes first piston and moves to one end of close second tube connector of cylinder body, thus the hot-air promoted in the first cylinder in second tube connector one end enters in regenerative apparatus, and then the hot-air in promotion regenerative apparatus enters in body of heater, make in aluminium liquid press-in die, when pressure release, first closed electromagnetic valve, the second magnetic valve is opened, and the hot-air in body of heater is expelled in heat storage, and promote first piston and move to one end of close first tube connector of cylinder body, thus by cavity filling process the compressed air be filled with in body of heater discharged by escape pipe, after first cylinder is set, repeatedly purify and filter while hot-air not affecting heat storage, the compressed air avoiding the outside normal temperature of body of heater enters in heat storage, the hot-air that it also avoid in heat storage is flowed out by escape pipe, namely the exchange between the compressed air of normal temperature and the interior hot-air of discharging of body of heater is avoided, achieve the Inner eycle in heat storage and body of heater of hot-air, thus further increase the cyclic utilization rate of hot-air, reduce the thermal loss of hot-air, reduce further holding furnace and in insulating process, need the air in heating furnace body and the energy consumption produced.
According to an embodiment of the present utility model, described heat accumulating type low-pressure casting thermal insulation furnace also comprises: surge pipe, one end of described surge pipe is connected with described second tube connector, the other end of described surge pipe is with the described air inlet pipe phase of described external breather pipe and connect, described surge pipe is provided with the 3rd magnetic valve, described 3rd magnetic valve is normally closed solenoid valve, and described 3rd magnetic valve is when opening described surge pipe, compressed air can be made to enter described cylinder body by described surge pipe and described second tube connector successively, and promote described first piston and move to the direction away from described second tube connector.
In above-described embodiment, along with the carrying out of casting, in body of heater, aluminium liquid reduces gradually, in body of heater, the volume of gas increases gradually, when making pressure release, be not enough to make first piston homing by the hot-air flowed out in body of heater, like this, hot-air volume near second tube connector one end in first cylinder reduces gradually, repeatedly after casting filling and decompression cycle, when again filling type, after passing into compressed air, when the hot-air near second tube connector one end in the first cylinder can not meet the volume of the hot-air needed for one-step casting, casting can be stopped, aluminium liquid is added in body of heater.During adding aluminium liquid, first closed electromagnetic valve, second magnetic valve and the 3rd magnetic valve are opened, compressed air enters the one end near the second tube connector in the first cylinder via surge pipe and the second tube connector, thus by first piston pushed home, namely first piston returns back to cylinder body one end near the first tube connector, now closes the 3rd magnetic valve; After the process adding aluminium liquid completes, close the second magnetic valve, open the first magnetic valve, again start Mold Filling Process.
It should be noted that, the 4th magnetic valve can be set on turnover furnace gas pipe, open at the 3rd magnetic valve, when first piston is pushed into original position by compressed air, enters regenerative apparatus for avoiding compressed air and then enter in body of heater, can by the 4th closed electromagnetic valve; Or the 4th magnetic valve is set between the second tube connector and pressurization import, can plays equally and avoid the compressed air entered by surge pipe to enter object in body of heater.
According to an embodiment of the present utility model, described heat accumulating type low-pressure casting thermal insulation furnace also comprises: the second cylinder, the cylinder body of described second cylinder is provided with the second piston, piston rod is connected with between described second piston and described first piston, and described piston rod is connected to the side near described first tube connector on described first piston, and can, when described second cylinder operation, make described second piston drive described first piston to move to the direction near described first tube connector by described piston rod.
In above-described embodiment, when filling type and pressure release, first piston moves back and forth under the drive of compressed air and hot-air in the first cylinder, and drive the second piston to follow first piston motion by piston rod, thus do not affect first cylinder realize fill the prerequisite of type and pressure release normally under, realize the synchronizing moving of the second piston, like this, when the aluminium liquid in body of heater reduces, make first piston cannot homing, hot-air volume near second tube connector one end in first cylinder reduces gradually, repeatedly after casting filling and decompression cycle, when again filling type, after passing into compressed air, when the hot-air near second tube connector one end in the first cylinder can not meet the volume of the hot-air needed for one-step casting, the second cylinder operation can be made, make the second piston, by piston rod, first piston is returned to original position, and this process synchronously can be carried out in the process of adding aluminium liquid in body of heater, with after having added aluminium liquid, proceed to fill type and pressure leak process.
In above-mentioned arbitrary technical scheme, preferably, described turnover furnace gas pipe comprises into furnace gas pipe and tracheae of coming out of the stove; Or, described turnover furnace gas Guan Weiyi root pipe.
In above-described embodiment, turnover furnace gas pipe comprises into furnace gas pipe and tracheae of coming out of the stove, and when filling type, the hot-air in regenerative apparatus enters in body of heater via entering furnace gas pipe, and when pressure release, the hot-air in body of heater is expelled in regenerative apparatus via tracheae of coming out of the stove; Certainly, also turnover furnace gas pipe can be designed to a pipe, the repeatedly flowing of hot-air in regenerative apparatus and body of heater can be realized equally, and the structure of holding furnace can be simplified.
Preferably, in order to reduce the loss of the heat filling hot-air in type and pressure leak process, can shorten as far as possible turnover furnace gas pipe or enter furnace gas pipe, the length of tracheae of coming out of the stove, all within protection domain of the present utility model.
In above-mentioned arbitrary technical scheme, preferably, length direction along described casing in described casing is provided with dividing plate, so that described casing is separated into multilayer thermal, described heat storage is equipped with in thermal described in every one deck, and the front end of thermal described in adjacent two layers is connected with end alternative expression, wherein the front end of thermal described in orlop is connected with described pressurization import, and the front end of thermal described in the superiors or end are connected with described pressure relief vent.
In above-described embodiment, length direction along casing in casing is provided with dividing plate, so that casing is separated into multilayer thermal, such as, the dividing plate that two pieces of longitudinal sections are in-line is set, two pieces of dividing plates are welded on respectively front end and the end at casing differing heights place, casing can be separated into three layers of thermal, the front end of undermost thermal is connected with pressurization import, the end of the thermal of the superiors is connected with pressure relief vent, the end of undermost thermal is connected with the end of intermediate layer thermal, the front end of intermediate layer thermal is connected with the front end of the superiors' thermal, like this, during pressure release, the hot-air entered in regenerative apparatus by the end of the thermal of the superiors flows through the superiors' thermal successively along casing length direction, intermediate layer thermal and orlop thermal, make thermal air current through whole heat storage, equally, when filling type, hot-air flows through orlop thermal successively, intermediate layer thermal and the superiors' thermal enter in body of heater, hot-air has also flowed through all heat storages.
In above-mentioned arbitrary technical scheme, preferably, the longitudinal section of described dividing plate is in-line or cross, so that described casing is separated into two-layer described thermal, and the end of two-layer described thermal is connected, wherein the front end of thermal described in is connected with described pressurization import, and the front end of thermal described in another is connected with described pressure relief vent.
In above-described embodiment, casing can be separated into two-layer thermal, filling in type and pressure leak process, hot-air enters in heat storage by the front end of a thermal, and flow along the length direction of casing, through the end of two-layer thermal, entered the end of another thermal by end connectivity part, the front end of this layer of thermal is flow to along casing length direction, hot-air is flow through whole heat storage in this layer of thermal, when turnover furnace gas pipe is same pipe, the longitudinal section of dividing plate can be set to in-line, the longitudinal section in the space that dividing plate is formed with the inwall of casing becomes day font, and pressurization import and turnover furnace gas pipe are separately positioned in two grid of day font, when pass in and out furnace gas pipe be divided into into furnace gas pipe and come out of the stove tracheae time, dividing plate can be set to cross, the longitudinal section in the space that the inwall of dividing plate and casing is formed is matrix pattern, be separately positioned in two grid on matrix pattern upper strata enter furnace gas pipe and tracheae of coming out of the stove, pressurization import is arranged in arbitrary grid of matrix pattern lower floor, certain dividing plate also can be other shape, therefore, by rationally arranging shape and the position of dividing plate in casing of dividing plate, to reach when filling type and pressure release thermal air current through the effect of whole heat storage, all within protection domain of the present utility model.
In above-mentioned arbitrary technical scheme, preferably, described casing has inner and outer wall, has heat insulation gap between described inwall and described outer wall, is provided with heat-insulation layer in described heat insulation gap; Described heat storage is cellular gitter brick, and described dividing plate is metallic plate.
In above-described embodiment, heat-insulation layer good heat-insulation effect, the thermal loss of hot-air in regenerative apparatus can be reduced, the insulating power of further raising regenerative apparatus, thus the energy consumption reducing holding furnace to need to heat the air in aluminium liquid and body of heater in the process of Insulating aluminium liquid further and produce, concrete, heat-insulation layer can be heat-preservation cotton, and can be fixed by locating pin; Cellular gitter brick can reduce the resistance of thermal air current through gitter brick greatly, has increased substantially the velocity of liquid assets of hot-air.
Certainly, also can wrap up heat-insulation layer on the first cylinder, reduce the thermal loss of the hot-air in the cylinder body of the first cylinder further.
Additional aspect of the present utility model and advantage become obvious by description part below, or are recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the sectional structure schematic diagram of the regenerative apparatus described in the utility model embodiment;
Fig. 2 is the sectional structure schematic diagram of the holding furnace described in the utility model first embodiment;
Fig. 3 is the sectional structure schematic diagram of the holding furnace described in the utility model second embodiment;
Fig. 4 is the sectional structure schematic diagram of the holding furnace of the utility model the 3rd described in embodiment.
Wherein, the corresponding relation in Fig. 1 to Fig. 4 between Reference numeral and component names is:
10 bodies of heater, 101 turnover furnace gas pipes, 1011 the 4th magnetic valves, 20 regenerative apparatuses, 201 casings, 2011 pressurization imports, 2012 pressure relief vent, 202 heat storages, 203 dividing plates, 204 heat-insulation layers, 205 locating pins, 30 external breather pipes, 301 air inlet pipe, 3011 first magnetic valves, 302 escape pipes, 3,021 second magnetic valves, 40 first cylinders, 401 first tube connectors, 402 second tube connectors, 403 first pistons, 50 surge pipes, 501 the 3rd magnetic valves, 60 second cylinders, 601 second pistons, 602 piston rods.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from mode described here to implement, and therefore, protection domain of the present utility model is not by the restriction of following public specific embodiment.
Heat accumulating type low-pressure casting thermal insulation furnace according to some embodiments of the utility model is described with reference to the accompanying drawings.
As depicted in figs. 1 and 2, according to a kind of heat accumulating type low-pressure casting thermal insulation furnace that some embodiments of the utility model provide, comprising: body of heater 10 and regenerative apparatus 20.
Wherein, described body of heater 10 is provided with turnover furnace gas pipe 101, and described turnover furnace gas pipe 101 is connected with external breather pipe 30;
Described regenerative apparatus 20 is located between described external breather pipe 30 and described turnover furnace gas pipe 101, described regenerative apparatus 20 comprises casing 201 and is positioned at the heat storage 202 of described casing 201, described casing 201 offers the pressurization import 2011 and pressure relief vent 2012 that are connected with described turnover furnace gas pipe 101 with described external breather pipe 30 respectively, during to make casting filling, compressed air enters in described casing 201 by described external breather pipe 30 and described pressurization import 2011 successively, and the hot-air promoted in described casing 201 enters in described body of heater 10 by described pressure relief vent 2012 and described turnover furnace gas pipe 101 successively, and after casting is completed during pressure release, hot-air in described body of heater 10 flows back in described casing 201 by described turnover furnace gas pipe 101 and described pressure relief vent 2012 successively, and the air promoted in described casing 201 is discharged through described pressurization import 2011 and described external breather pipe 30 successively.
The heat accumulating type low-pressure casting thermal insulation furnace that the utility model above-described embodiment provides, comprise body of heater and regenerative apparatus, regenerative apparatus comprises casing and is positioned at the heat storage of casing, during casting filling, compressed air enters in casing by external breather pipe and pressurization import successively, and the hot-air promoted in casing enters in body of heater by pressure relief vent and turnover furnace gas pipe successively, now, compressed air is stayed in regenerative apparatus, hot-air in regenerative apparatus enters in body of heater, in body of heater, pressure raises, and aluminium liquid is by stalk press-in die, when having cast rear pressure release, hot-air in body of heater flows back in casing by turnover furnace gas pipe and pressure relief vent successively, and the compressed air entered at cavity filling process promoted in casing is discharged through pressurization import and external breather pipe successively, now, the hot-air of high temperature is full of heat storage again, next time is when filling type, the compressed air hot-air again promoted in regenerative apparatus enters in body of heater, during pressure release, hot-air flows back in regenerative apparatus again, repeatedly carry out the process of filling type and pressure release, although filling in type and pressure leak process, hot-air inevitably has the loss of volume and heat, but most of hot-air in heat storage and body of heater back and forth repeatedly, thus achieve recycling of most of hot-air, on the one hand, due to the insulation effect of heat storage, the hot air temperature entered when filling type in body of heater is higher, the energy consumption that holding furnace produces because of the air in heating furnace body can be reduced, on the other hand, during pressure release, hot-air is stored in heat storage, avoid the problem that hot-air directly enters workshop and the workshop temperature that causes raises, simultaneously, hot-air flows through heat storage repeatedly, heat storage carries out continuous print purification to hot-air, improve the cleannes of hot-air, thus ensure that the quality of aluminium liquid in body of heater, and then ensure that the quality of cast member, and hot-air is repeatedly through heat storage, also can remove the steam in hot-air, the purity of further raising hot-air.
It should be noted that, when first time casting filling, because holding furnace does not use for a long time, in regenerative apparatus, the temperature of hot-air is lower, but when filling type after second time and second time, the temperature again flowing back to the hot-air in regenerative apparatus after body of heater heating will raise, and can reach the object of the air reduced in holding furnace heating furnace body and the energy consumption produced; For the ease of changing regenerative apparatus, the modes such as regenerative apparatus support can be arranged on the outside of body of heater.
In an embodiment of the present utility model, the storage volume in described casing 201 is more than or equal to the volume passing into the air in described body of heater 10 needed for one-step casting.
In above-described embodiment, the hot-air volume stored in casing is more than or equal to the volume of the air passed into needed for one-step casting, when making casting filling, the hot-air of memory box storage can meet the amount passing into the air in body of heater needed for one-step casting completely, thus avoid the compressed air passed into by external breather pipe as far as possible and enter body of heater, thus achieve the recycling of hot-air in repeatedly casting to a greater extent, thus reduce further the energy consumption of air in holding furnace heating furnace body.Certainly, when the volume of body of heater, the varying in size of cast member, the amount completing the air needed for one-step casting is different, should according to the volume of the hot-air that can store in actual conditions appropriate design regenerative apparatus, meet the amount of the air needed for one-step casting as far as possible, but regenerative apparatus volume also will be avoided excessive simultaneously, take large quantity space, therefore in practical application, should according to the volume of actual conditions appropriate design regenerative apparatus.
In an embodiment of the present utility model, as shown in Figure 2, described external breather pipe 30 comprises and the air inlet pipe 301 connect and escape pipe 302, described air inlet pipe 301 is provided with the first magnetic valve 3011, described escape pipe 302 is provided with the second magnetic valve 3021, wherein, described first magnetic valve 3011 is normally closed solenoid valve, and described second magnetic valve 3021 is normally open solenoid valve.
In above-described embodiment, external breather pipe comprises and the air inlet pipe connect and escape pipe, and when casting filling, the first magnetic valve is opened, the second closed electromagnetic valve, and compressed air enters in regenerative apparatus through air inlet pipe and external breather pipe successively; When pressure release, the first closed electromagnetic valve, the second magnetic valve is opened, and after the hot-air in body of heater flows back to regenerative apparatus, is released by the compressed air in regenerative apparatus, and is expelled to outside body of heater through external breather pipe and escape pipe; When not casting, the first closed electromagnetic valve, the second magnetic valve is opened, and to keep suitable with the air pressure outside stove in stove, after avoiding stove internal cause long-time heating, air pressure increases the safety jeopardizing holding furnace.
Preferably, as shown in Figure 3, described heat accumulating type low-pressure casting thermal insulation furnace also comprises: the first cylinder 40, described first cylinder 40 is located between described external breather pipe 30 and described pressurization import 2011, the two ends of the cylinder body of described first cylinder 40 are respectively equipped with the first tube connector 401 and the second tube connector 402 be connected with described pressurization import 2011 with described external breather pipe 30, and are provided with reciprocating first piston 403 in described cylinder body.
In above-described embodiment, during casting filling, first magnetic valve is opened, second closed electromagnetic valve, compressed air enters the first cylinder one end near the first tube connector by air inlet pipe, the first tube connector, promotes first piston and moves to one end of close second tube connector of cylinder body, thus the hot-air promoted in the first cylinder in second tube connector one end enters in regenerative apparatus, and then the hot-air in promotion regenerative apparatus enters in body of heater, make in aluminium liquid press-in die, when pressure release, first closed electromagnetic valve, the second magnetic valve is opened, and the hot-air in body of heater is expelled in heat storage, and promote first piston and move to one end of close first tube connector of cylinder body, thus by cavity filling process the compressed air be filled with in body of heater discharged by escape pipe, after first cylinder is set, repeatedly purify and filter while hot-air not affecting heat storage, the compressed air avoiding the outside normal temperature of body of heater enters in heat storage, the hot-air that it also avoid in heat storage is flowed out by escape pipe, namely the exchange between the compressed air of normal temperature and the interior hot-air of discharging of body of heater is avoided, achieve the Inner eycle in heat storage and body of heater of hot-air, thus further increase the cyclic utilization rate of hot-air, reduce the thermal loss of hot-air, reduce further holding furnace and in insulating process, need the air in heating furnace body and the energy consumption produced.
Further, as shown in Figure 3, described heat accumulating type low-pressure casting thermal insulation furnace also comprises: surge pipe 50, one end of described surge pipe 50 is connected with described second tube connector 402, the other end of described surge pipe 50 is with described air inlet pipe 301 phase of described external breather pipe 30 and connect, described surge pipe 50 is provided with the 3rd magnetic valve 501, described 3rd magnetic valve 501 is normally closed solenoid valve, and described 3rd magnetic valve 501 is when opening described surge pipe 50, compressed air can be made to enter described cylinder body by described surge pipe 50 and described second tube connector 402 successively, and promote described first piston 403 and move to the direction away from described second tube connector 402.
In above-described embodiment, along with the carrying out of casting, in body of heater, aluminium liquid reduces gradually, in body of heater, the volume of gas increases gradually, when making pressure release, be not enough to make first piston homing by the hot-air flowed out in body of heater, hot-air volume near second tube connector one end in first cylinder reduces gradually, repeatedly after casting filling and decompression cycle, when again filling type, after passing into compressed air, when the hot-air near second tube connector one end in the first cylinder can not meet the volume of the hot-air needed for one-step casting, casting can be stopped, in body of heater, add aluminium liquid.During adding aluminium liquid, first closed electromagnetic valve, second magnetic valve and the 3rd magnetic valve are opened, compressed air enters the one end near the second tube connector in the first cylinder via surge pipe and the second tube connector, thus by first piston pushed home, namely first piston returns back to cylinder body one end near the first tube connector, now closes the 3rd magnetic valve; After the process adding aluminium liquid completes, close the second magnetic valve, open the first magnetic valve, again start Mold Filling Process.
It should be noted that, as shown in Figure 3, the 4th magnetic valve 1011 can be set on turnover furnace gas pipe 101, open at the 3rd magnetic valve, when first piston is pushed into original position by compressed air, enters regenerative apparatus for avoiding compressed air and then enter in body of heater, can by the 4th closed electromagnetic valve; Or the 4th magnetic valve is set between the second tube connector and pressurization import, can plays equally and avoid the compressed air entered by surge pipe to enter object in body of heater.
In an embodiment of the present utility model, as shown in Figure 4, described heat accumulating type low-pressure casting thermal insulation furnace also comprises: the second cylinder 60, the cylinder body of described second cylinder 60 is provided with the second piston 601, piston rod 602 is connected with between described second piston 601 and described first piston 403, and described piston rod 602 is connected to the side near described first tube connector 401 on described first piston 403, and can when described second cylinder 60 works, described second piston 601 is made to drive described first piston 403 to move to the direction near described first tube connector 401 by described piston rod 602.
In above-described embodiment, when filling type and pressure release, first piston moves back and forth under the drive of compressed air and hot-air in the first cylinder, and drive the second piston to follow first piston motion by piston rod, thus do not affect first cylinder realize fill the prerequisite of type and pressure release normally under, realize the synchronizing moving of the second piston, like this, when the aluminium liquid in body of heater reduces, make first piston cannot homing time, the second cylinder operation can be made, make the second piston, by piston rod, first piston is returned to original position, and this process synchronously can be carried out in the process of adding aluminium liquid in body of heater, with after having added aluminium liquid, proceed to fill type and pressure leak process.
In an embodiment of the present utility model, described turnover furnace gas pipe 101 comprises into furnace gas pipe and tracheae of coming out of the stove; Or as shown in Figure 2, described turnover furnace gas pipe 101 is a pipe.
In above-described embodiment, turnover furnace gas pipe comprises into furnace gas pipe and tracheae of coming out of the stove, and when filling type, the hot-air in regenerative apparatus enters in body of heater via entering furnace gas pipe, and when pressure release, the hot-air in body of heater is expelled in regenerative apparatus via tracheae of coming out of the stove; Certainly, also turnover furnace gas pipe can be designed to a pipe, the repeatedly flowing of hot-air in regenerative apparatus and body of heater can be realized equally, and the structure of holding furnace can be simplified.
Preferably, in order to reduce the loss of the heat filling hot-air in type and pressure leak process, can shorten as far as possible turnover furnace gas pipe or enter furnace gas pipe, the length of tracheae of coming out of the stove, all within protection domain of the present utility model.
Preferably, length direction along described casing 201 in described casing 201 is provided with dividing plate 203, so that described casing 201 is separated into multilayer thermal, described heat storage 202 is equipped with in thermal described in every one deck, and the front end of thermal described in adjacent two layers is connected with end alternative expression, wherein the front end of thermal described in orlop is connected with described pressurization import 2011, and the front end of thermal described in the superiors or end are connected with described pressure relief vent 2012.
In above-described embodiment, length direction along casing in casing is provided with dividing plate, so that casing is separated into multilayer thermal, such as, the dividing plate that two pieces of longitudinal sections are in-line is set, two pieces of dividing plates are welded on respectively front end and the end at casing differing heights place, casing can be separated into three layers of thermal, the front end of undermost thermal is connected with pressurization import, the end of the thermal of the superiors is connected with pressure relief vent, the end of undermost thermal is connected with the end of intermediate layer thermal, the front end of intermediate layer thermal is connected with the front end of the superiors' thermal, like this, during pressure release, the hot-air entered in regenerative apparatus by the end of the thermal of the superiors flows through the superiors' thermal successively along casing length direction, intermediate layer thermal and orlop thermal, make thermal air current through whole heat storage, equally, when filling type, hot-air flows through orlop thermal successively, intermediate layer thermal and the superiors' thermal enter in body of heater, hot-air has also flowed through all heat storages.
Further, as shown in Figure 1, the longitudinal section of described dividing plate 203 is in-line or cross, so that described casing 201 is separated into two-layer described thermal, and the end of two-layer described thermal is connected, wherein the front end of thermal described in is connected with described pressurization import 2011, and the front end of thermal described in another is connected with described pressure relief vent 2012.
In above-described embodiment, casing can be separated into two-layer thermal, filling in type and pressure leak process, hot-air enters in heat storage by the front end of a thermal, and flow along the length direction of casing, through the end of two-layer thermal, entered the end of another thermal by end connectivity part, the front end of this layer of thermal is flow to along casing length direction, hot-air is flow through whole heat storage in this layer of thermal, when turnover furnace gas pipe is same pipe, the longitudinal section of dividing plate can be set to in-line, the longitudinal section in the space that dividing plate is formed with the inwall of casing becomes day font, and pressurization import and turnover furnace gas pipe are separately positioned in two grid of day font, when pass in and out furnace gas pipe be divided into into furnace gas pipe and come out of the stove tracheae time, dividing plate can be set to cross, the longitudinal section in the space that the inwall of dividing plate and casing is formed is matrix pattern, be separately positioned in two grid on matrix pattern upper strata enter furnace gas pipe and tracheae of coming out of the stove, pressurization import is arranged in arbitrary grid of matrix pattern lower floor, certain dividing plate also can be other shape, therefore, by rationally arranging shape and the position of dividing plate in casing of dividing plate, to reach when filling type and pressure release thermal air current through the effect of whole heat storage, all within protection domain of the present utility model.
Further, described heat storage 202 is cellular gitter brick, and described dividing plate 203 is metallic plate.
In above-described embodiment, cellular gitter brick can reduce the resistance of thermal air current through gitter brick greatly, has increased substantially the velocity of liquid assets of hot-air.
Again further, as shown in Figure 1, described casing 201 has inner and outer wall, has heat insulation gap between described inwall and described outer wall, is provided with heat-insulation layer 204 in described heat insulation gap.
In above-described embodiment, heat-insulation layer good heat-insulation effect, the thermal loss reducing hot-air in regenerative apparatus can be reduced, the insulating power of further raising regenerative apparatus, thus the energy consumption reducing holding furnace to need to heat the air in aluminium liquid and body of heater in the process of Insulating aluminium liquid further and produce, concrete, as shown in Figure 1, heat-insulation layer can be heat-preservation cotton, can be fixed by locating pin 205.
Certainly, also can wrap up heat-insulation layer on the first cylinder, reduce the thermal loss of the hot-air in the cylinder body of the first cylinder further.
In sum, the heat accumulating type low-pressure casting thermal insulation furnace that the utility model embodiment provides, by installing regenerative apparatus outside body of heater, when making to fill type and pressure release, major part hot-air repeatedly flows in regenerative apparatus and body of heater, thus achieve recycling of most of hot-air, on the one hand, reduce holding furnace and need the air in heating furnace body and the energy consumption produced, on the other hand, hot-air is stored in heat storage, avoid the problem that hot-air directly enters workshop and the workshop temperature that causes raises, simultaneously, hot-air flows through heat storage repeatedly, heat storage carries out continuous print purification to hot-air, improve the cleannes of hot-air, thus ensure that the quality of aluminium liquid in body of heater, by adding the first cylinder, the cyclic utilization rate of hot-air can be improved further simultaneously.
In description of the present utility model, unless otherwise prescribed or illustrate, term " connections ", " being connected " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly, or be electrically connected; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a heat accumulating type low-pressure casting thermal insulation furnace, is characterized in that, comprising:
Body of heater, described body of heater is provided with turnover furnace gas pipe, and described turnover furnace gas pipe is connected with external breather pipe; With
Regenerative apparatus, described regenerative apparatus is located between described external breather pipe and described turnover furnace gas pipe, described regenerative apparatus comprises casing and is positioned at the heat storage of described casing, described casing offers the pressurization import and pressure relief vent that are connected with described turnover furnace gas pipe with described external breather pipe respectively, during to make casting filling, compressed air enters in described casing by described external breather pipe and described pressurization import successively, and the hot-air promoted in described casing enters in described body of heater by described pressure relief vent and described turnover furnace gas pipe successively, and after casting is completed during pressure release, hot-air in described body of heater flows back in described casing by described turnover furnace gas pipe and described pressure relief vent successively, and the air promoted in described casing is discharged through described pressurization import and described external breather pipe successively.
2. heat accumulating type low-pressure casting thermal insulation furnace according to claim 1, is characterized in that,
Storage volume in described casing is more than or equal to the volume passing into the air in described body of heater needed for one-step casting.
3. heat accumulating type low-pressure casting thermal insulation furnace according to claim 1, is characterized in that,
Described external breather pipe comprises and the air inlet pipe connect and escape pipe, and described air inlet pipe is provided with the first magnetic valve, and described escape pipe is provided with the second magnetic valve, and wherein, described first magnetic valve is normally closed solenoid valve, and described second magnetic valve is normally open solenoid valve.
4. heat accumulating type low-pressure casting thermal insulation furnace according to claim 3, is characterized in that, also comprise:
First cylinder, described first cylinder is located between described external breather pipe and described pressurization import, the two ends of the cylinder body of described first cylinder are respectively equipped with the first tube connector and the second tube connector that are connected with described pressurization import with described external breather pipe, and are provided with reciprocating first piston in described cylinder body.
5. heat accumulating type low-pressure casting thermal insulation furnace according to claim 4, is characterized in that, also comprise:
Surge pipe, one end of described surge pipe is connected with described second tube connector, the other end of described surge pipe is with the described air inlet pipe phase of described external breather pipe and connect, described surge pipe is provided with the 3rd magnetic valve, described 3rd magnetic valve is normally closed solenoid valve, and described 3rd magnetic valve is when opening described surge pipe, compressed air can be made to enter described cylinder body by described surge pipe and described second tube connector successively, and promote described first piston and move to the direction away from described second tube connector.
6. heat accumulating type low-pressure casting thermal insulation furnace according to claim 4, is characterized in that, also comprise:
Second cylinder, the cylinder body of described second cylinder is provided with the second piston, piston rod is connected with between described second piston and described first piston, and described piston rod is connected to the side near described first tube connector on described first piston, and can, when described second cylinder operation, make described second piston drive described first piston to move to the direction near described first tube connector by described piston rod.
7. heat accumulating type low-pressure casting thermal insulation furnace according to any one of claim 1 to 6, is characterized in that,
Described turnover furnace gas pipe comprises into furnace gas pipe and tracheae of coming out of the stove; Or, described turnover furnace gas Guan Weiyi root pipe.
8. heat accumulating type low-pressure casting thermal insulation furnace according to any one of claim 1 to 6, is characterized in that,
Length direction along described casing in described casing is provided with dividing plate, so that described casing is separated into multilayer thermal, described heat storage is equipped with in thermal described in every one deck, and the front end of thermal described in adjacent two layers is connected with end alternative expression, wherein the front end of thermal described in orlop is connected with described pressurization import, and the front end of thermal described in the superiors or end are connected with described pressure relief vent.
9. heat accumulating type low-pressure casting thermal insulation furnace according to claim 8, is characterized in that,
The longitudinal section of described dividing plate is in-line or cross, so that described casing is separated into two-layer described thermal, and the end of two-layer described thermal is connected, wherein the front end of thermal described in is connected with described pressurization import, and the front end of thermal described in another is connected with described pressure relief vent.
10. heat accumulating type low-pressure casting thermal insulation furnace according to claim 9, is characterized in that,
Described casing has inner and outer wall, has heat insulation gap between described inwall and described outer wall, is provided with heat-insulation layer in described heat insulation gap;
Described heat storage is cellular gitter brick, and described dividing plate is metallic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686998.5U CN204892931U (en) | 2015-09-07 | 2015-09-07 | Heat accumulation formula low pressure casting heat preservation stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686998.5U CN204892931U (en) | 2015-09-07 | 2015-09-07 | Heat accumulation formula low pressure casting heat preservation stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204892931U true CN204892931U (en) | 2015-12-23 |
Family
ID=54915145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520686998.5U Withdrawn - After Issue CN204892931U (en) | 2015-09-07 | 2015-09-07 | Heat accumulation formula low pressure casting heat preservation stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204892931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081299A (en) * | 2015-09-07 | 2015-11-25 | 浙江今飞凯达轮毂股份有限公司 | Heat storage type low-pressure casting holding furnace |
-
2015
- 2015-09-07 CN CN201520686998.5U patent/CN204892931U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081299A (en) * | 2015-09-07 | 2015-11-25 | 浙江今飞凯达轮毂股份有限公司 | Heat storage type low-pressure casting holding furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104668503B (en) | A kind of non-crystaline amorphous metal component casting equipment and technique | |
| CN103624232A (en) | Efficient high vacuum smelting die-casting method and efficient high vacuum smelting die-casting forming equipment | |
| CN102228981B (en) | Mould of grid continuous casting machine of lead-acid storage battery | |
| CN108015250B (en) | A kind of cold-chamber die casting machine of waste heat recoverable | |
| CN204892931U (en) | Heat accumulation formula low pressure casting heat preservation stove | |
| CN105081299A (en) | Heat storage type low-pressure casting holding furnace | |
| CN103302276B (en) | Suction and injection machine for liquid aluminum alloy | |
| CN202683937U (en) | Steam dewaxing kettle | |
| CN105062508B (en) | Cast steel filled coke oven riser pipe waste heat recovery device and manufacturing method therefor | |
| CN104972062A (en) | Manufacturing process of high-temperature alloy turbine | |
| CN104259423A (en) | Injection device for die-casting machine | |
| CN208468875U (en) | Heat pressing forming device is used in a kind of production of pod | |
| CN203635902U (en) | Low-pressure casting continuous production equipment | |
| CN204892866U (en) | Fired mold is wax injector for precision casting | |
| CN207850691U (en) | A kind of temperature can active control constant volume bullet heat-insulation system | |
| CN206094254U (en) | Porous wing vacuum superconductive monomer electricity radiator reaches dismantled and assembled electric heater by its combination | |
| CN205328928U (en) | Cast steel filled type coke oven tedge waste heat recovery device | |
| CN210937004U (en) | Novel mould cooling ejector pin | |
| CN202528301U (en) | Ceramic hot press with automatic feed-back device | |
| CN106739002A (en) | Close the vacuum diversion Integral molding device for insoles of hexahedron shelter | |
| CN204019930U (en) | A kind of oily formula die temperature controller | |
| CN210059702U (en) | Constant temperature control device of wax pressing machine | |
| CN204892861U (en) | High heating efficiency's wax injector | |
| CN206598501U (en) | A kind of dual temperature die heater of single oil cylinder twin flue | |
| CN202087813U (en) | High supercharging type low-pressure die casting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20170322 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |