CN207608657U - A kind of improved ingot furnace - Google Patents

A kind of improved ingot furnace Download PDF

Info

Publication number
CN207608657U
CN207608657U CN201721675998.0U CN201721675998U CN207608657U CN 207608657 U CN207608657 U CN 207608657U CN 201721675998 U CN201721675998 U CN 201721675998U CN 207608657 U CN207608657 U CN 207608657U
Authority
CN
China
Prior art keywords
furnace body
control
rod
heat
calandria
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.)
Active
Application number
CN201721675998.0U
Other languages
Chinese (zh)
Inventor
雷阳
肖凌超
吴君立
徐秋强
马泰
王江杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG SUNOLOGY CO Ltd
Original Assignee
ZHEJIANG SUNOLOGY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG SUNOLOGY CO Ltd filed Critical ZHEJIANG SUNOLOGY CO Ltd
Priority to CN201721675998.0U priority Critical patent/CN207608657U/en
Application granted granted Critical
Publication of CN207608657U publication Critical patent/CN207608657U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a kind of improved ingot furnace, including external furnace body, inner furnace body, ceramic silica crucible and calandria, external furnace body is connected with the lifting gear that a driving external furnace body is swooned up and down, calandria is wrapped on the outer wall of ceramic silica crucible, inner furnace body is set in the outer surface of calandria, and there is gap between inner furnace body and calandria, the temperature control device that heating external surface is radiated or kept the temperature is provided on inner furnace body, temperature control device includes the control-rod being uniformly arranged in inner furnace body, several reflecting plates are longitudinally connected on every control-rod, two plate faces of reflecting plate are coated with heat-reflective coating, control-rod is longitudinally plugged on inner furnace body, control-rod moves up the reflection angle that can change reflecting plate one by one from the bottom to top, control-rod is fixedly linked with external furnace body.The utility model has many advantages, such as that external furnace body movement and long brilliant synchronous temperature control can be made.

Description

A kind of improved ingot furnace
Technical field
The utility model is related to a kind of ingot furnace, more particularly to a kind of improved ingot furnace.
Background technology
What the growth of polysilicon was mainly the oriented growth by silicon material in polycrystalline silicon ingot or purifying furnace to complete.In this mistake Cheng Zhong, polycrystalline silicon raw material are undergone in ingot furnace from solid-state to fusing, then long brilliant to solid growth course.Entire production process It needs to consume a large amount of electric energy, currently, the average energy consumption index of industry, which is 1 kilogram of polysilicon of every production, needs 8 degree of power consumption, if flat Per stove according to 620 kilograms of dress silicon materials, one stove of production needs 4960 degree of electricity consumption.
Application No. is【CN201410107701.5】Chinese patent in, disclosing the utility model, to provide one kind more Crystal silicon ingot furnace energy saver, with solve existing polycrystalline silicon ingot or purifying furnace in process of production thermal losses greatly so as to cause power consumption Measure big technical problem;Including polycrystalline silicon ingot or purifying furnace upper furnace body and polycrystalline silicon ingot or purifying furnace lower furnace body, the stove on polycrystalline silicon ingot or purifying furnace The top of body is provided with heat-insulation cage lifting gear, heat-insulation cage lifting gear and the heat-insulation cage machinery being arranged in polycrystalline silicon ingot or purifying furnace It links together, is provided with insulation quilt on the surrounding side wall of heat-insulation cage, water cooling is provided on the furnace wall of polycrystalline silicon ingot or purifying furnace Set, vertically vertical direction is provided with upper rectangle shutter on the madial wall of polycrystalline silicon ingot or purifying furnace upper furnace body, is cast in polysilicon Vertically vertical direction is provided with lower rectangle shutter on the madial wall of ingot stove lower furnace body, is arranged on upper rectangle blade of louver window There is upper rectangle blade of louver window drive shaft, upper rectangle hundred is fixedly installed in one end of upper rectangle blade of louver window drive shaft Leaf window blade drives gear, lower rectangle blade of louver window drive shaft is provided on lower rectangle blade of louver window, in lower rectangle One end of blade of louver window drive shaft is fixedly installed lower rectangle blade of louver window driving gear, on the lateral wall of heat-insulation cage It is fixedly installed rack-plate base plate, vertically vertical direction has been positioned apart from upper driving cog under on rack-plate base plate Driving cog is provided with upper INTERMEDIATE TRANSMISSION GEAR, in upper between rack-plate base plate and upper rectangle blade of louver window driving gear Jie's transmission gear is engaged with upper rectangle blade of louver window driving gear, is driven in rack-plate base plate and lower rectangle blade of louver window Lower INTERMEDIATE TRANSMISSION GEAR is provided between gear, lower INTERMEDIATE TRANSMISSION GEAR is engaged with lower rectangle blade of louver window driving gear; High temperature endothermic coating is provided on the madial wall of polycrystalline silicon ingot or purifying furnace.
However, long crystalline substance process carries out successively from the bottom to top, there are not preferable synchronization structure, stove in the documents During chamber moves up, it should cool down successively to ingot furnace from the bottom to top, moreover, the louver structure provided in documents, In the presence of unreasonable, the defects of technological requirement is high is designed, in the high temperature environment, the scheme as described in documents be difficult have it is preferable Stability and durability.
Utility model content
The purpose of this utility model is the existing above problem in view of the prior art, provides a kind of improved ingot furnace, Technical problem to be solved in the utility model be how to realize it is long brilliant during furnace chamber movement and radiator structure action it is same Step.
The purpose of this utility model can be realized by following technical proposal:A kind of improved ingot furnace, which is characterized in that Including external furnace body, inner furnace body, ceramic silica crucible and calandria, dizzy lifting above and below the external furnace body and a driving external furnace body Device is connected, and the calandria is wrapped on the outer wall of ceramic silica crucible, and the inner furnace body is set in the outer surface of calandria, And there is gap between inner furnace body and calandria, it is provided on the inner furnace body and heating external surface is radiated or kept the temperature Temperature control device, the temperature control device include the control-rod being uniformly arranged in inner furnace body, longitudinally connected on every control-rod There are several reflecting plates, two plate faces of the reflecting plate to be coated with heat-reflective coating, the control-rod is longitudinally plugged on inner furnace body, The control-rod moves up the reflection angle that can change reflecting plate one by one from the bottom to top, the control-rod and external furnace body stationary phase Even.
During long brilliant, external furnace body moves up, and control-rod is driven to move up, to realize calandria appearance by temperature control device The synchronous heat dissipation in face and synchronous heat preservation.
In a kind of above-mentioned improved ingot furnace, the temperature control device includes that several pacify correspondingly with control-rod Hole is filled, there is the mounting hole notch, the reflecting plate notch, the mounting hole to be passed through longitudinally to be opened in inner furnace body It is interior, an axle sleeve is arranged on the control-rod, the inner end of the reflecting plate is fixed on axle sleeve, is opened up on the inner wall of the axle sleeve There is a guide groove, the guide groove includes spiral helicine steering section, the approach section being vertically arranged and what is be vertically arranged go out slot section, the entrance The upper end of section is separately connected the both ends for being connected to and turning to section, the lower end of the lower end perforation axle sleeve of the approach section with the lower end for going out slot section Face, it is described go out slot section upper end perforation axle sleeve upper surface, the axle sleeve is rotatably connected in mounting hole;It is solid on the control-rod There are one the guide pads that can be plugged in guide groove for fixed setting;The hand of spiral of the steering section of adjacent channels is opposite.
During long brilliant, external furnace body moves up, and control-rod is driven to move up, to control the axle sleeve rotation where reflecting plate, The direction of reflecting plate is set to change so that the state that reflecting plate is covered heating external surface by script large area changes into expansion The state of heat dissipation, to reach heat dissipation and external furnace body move up it is synchronous, it should be mentioned that:Longitudinally disposed multiple reflecting plates be by Under supreme one by one act.
In a kind of above-mentioned improved ingot furnace, the inner wall area of the inner furnace body between two control-rods is referred to as plated film Face is coated with heat-reflective coating and heat absorbing coating on adjacent coated surface respectively.
In reflecting plate swing process, the coated surface where closing heat-reflective coating that can be selective is opened heat absorption and is applied Coated surface where layer coordinates the heat reflection of reflecting plate to radiate, and heat can be made to concentrate on heat absorbing coating, carried High heat dissipation effect;Coated surface where closing heat absorbing coating that can also be selective, opens the coated surface where heat-reflective coating, Coordinate the heat reflection of reflecting plate, carries out Heat preservation, avoid heat loss.
In a kind of above-mentioned improved ingot furnace, also there is a waterway, the waterway interpolation in the inner furnace body Flow-stopping plate equipped with an annular, the flow-stopping plate are fixedly linked with external furnace body by several disc, are filled in the waterway Coolant liquid, coolant liquid carry out heat exchange by a water circulation system.
It is synchronous with the reflecting plate to radiate under opening-wide state into the part waterway of cycle in radiation processes, make Heat can rapidly be absorbed by heat absorbing coating, and be taken away by water cycle, be quickly cooled down, to coordinate crystal production.
Water circulation system can be water pump carries out water coke slurry to waterway, can also be water pump and compressor set at heat dissipation Structure.
In a kind of above-mentioned improved ingot furnace, pass through the connecting plate phase of an annular between the flow-stopping plate and external furnace body Even, the control-rod is connected by bearing with connecting plate, and the upper end of the control-rod is further fixedly arranged on a control gear.
By controlling gear rotation, thus it is possible to vary the original state and the state after swing of reflecting plate make heat dissipation area can Control, can enable radiating efficiency and thermal requirements be controlled.
In a kind of above-mentioned improved ingot furnace, the inner wall of the mounting hole offers several recesses one, the axis The outer wall of set is uniformly provided with several recesses two, and steel ball is rotatably connected in the recess one, and the steel ball can partly block Enter in the recess two.
It is the structure of similar interference fit between axle sleeve and inner wall of the hole installing, fixes with inner furnace body under axle sleeve normality, also may be used To be rotated in the case where high torque acts on.
In a kind of above-mentioned improved ingot furnace, the control-rod moves straight up, can control reflecting plate outer end Two-by-two against and covering the coated surface for being coated with heat-reflective coating, make the coated surface for being coated with heat absorbing coating and calandria outer wall face; The control-rod moves straight down, can control reflecting plate outer end two-by-two against, and cover the coated surface for being coated with heat absorbing coating, Make the coated surface for being coated with heat-reflective coating and calandria outer wall face.
The program is the scheme under best heat preservation and highest radiating efficiency state, where capable of covering heat absorbing coating completely Coated surface where coated surface or heat-reflective coating.
Heat absorbing coating can be black chrome coating, and heat-reflective coating can be the LO/ that solar energy group company of the U.S. develops MIT-1 type thermal insulating coatings.
It is described go out slot section upper end and the lower end of upstream end all have a horn-like opening portion.
So that the guide pad on control-rod can smoothly pass in and out guide groove.
Description of the drawings
Fig. 1 is the part-structure schematic diagram of this ingot furnace.
Fig. 2 is the cross-sectional view of this ingot furnace.
Fig. 3 is that reflecting plate is in the structural schematic diagram under radiating state in this ingot furnace.
Fig. 4 is structural schematic diagram of the reflection under keeping warm mode in this ingot furnace.
Fig. 5 is the structural schematic diagram between this ingot furnace bottom bracket axle and control-rod.
Fig. 6 is the dimensional structure diagram of this ingot furnace bottom bracket axle.
In figure, 11, external furnace body;12, inner furnace body;13, ceramic silica crucible;14, calandria;21, control-rod;22, it reflects Plate;23, heat-reflective coating;24, heat absorbing coating;25, mounting hole;26, axle sleeve;3, guide groove;31, section is turned to;32, approach section;33、 Go out slot section;4, guide pad;51, waterway;52, flow-stopping plate;53, connecting plate;6, gear is controlled;71, recess one;72, recess two; 73, steel ball.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.
As depicted in figs. 1 and 2, including external furnace body 11, inner furnace body 12, ceramic silica crucible 13 and calandria 14, external furnace body 11 are connected with a dizzy lifting gear of about 11 external furnace body of driving, and calandria 14 is wrapped in the outer wall of ceramic silica crucible 13 On, inner furnace body 12 is set in the outer surface of calandria 14, and has gap between inner furnace body 12 and calandria 14, on inner furnace body 12 It is provided with the temperature control device that 14 outer surface of calandria is radiated or kept the temperature, temperature control device includes being uniformly arranged on inner furnace body Control-rod 21 in 12 is longitudinally connected with several reflecting plates 22 on every control-rod 21, and two plate faces of reflecting plate 22 are coated with Heat-reflective coating 23, control-rod 21 is longitudinal to be plugged on inner furnace body 12, and control-rod 21 moves up can change instead one by one from the bottom to top The reflection angle of plate 22 is penetrated, control-rod 21 is fixedly linked with external furnace body 11.
During long brilliant, external furnace body 11 moves up, and control-rod 21 is driven to move up, to realize calandria by temperature control device The synchronous heat dissipation of 14 outer surfaces and synchronous heat preservation.
As shown in Figure 5 and Figure 6, temperature control device includes several and 21 one-to-one mounting hole 25 of control-rod, mounting hole 25 there is a notch, reflecting plate 22 to pass through notch, and mounting hole 25 is longitudinal to be opened in inner furnace body 12, and one is arranged on control-rod 21 The inner end of axle sleeve 26, reflecting plate 22 is fixed on axle sleeve 26, and guide groove 3 is offered on the inner wall of axle sleeve 26, and guide groove 3 includes helical form Steering section 31, the approach section 32 being vertically arranged and what is be vertically arranged go out slot section 33, the upper end of approach section 32 and go out slot section 33 Lower end is separately connected the both ends that connection turns to section 31, and the lower face of the lower end perforation axle sleeve 26 of approach section 32 goes out the upper of slot section 33 The upper surface of end perforation axle sleeve 26, axle sleeve 26 are rotatably connected in mounting hole 25;There are one can for fixed setting on control-rod 21 The guide pad 4 being plugged in guide groove 3;The hand of spiral of the steering section 31 of adjacent channels 3 is opposite.
During long brilliant, external furnace body 11 moves up, and control-rod 21 is driven to move up, to control the axle sleeve where reflecting plate 22 26 rotations, make the direction of reflecting plate 22 change so that reflecting plate 22 covers 14 outer surface of calandria by script large area State change into expansion heat dissipation state, to reach heat dissipation and external furnace body 11 move up it is synchronous, it should be mentioned that:It is longitudinally disposed Multiple reflecting plates 22 act one by one from the bottom to top.
The inner wall area of inner furnace body 12 between two control-rods 21 is referred to as coated surface, is coated with respectively on adjacent coated surface Heat-reflective coating 23 and heat absorbing coating 24;In 22 swing process of reflecting plate, can selectivity 23 institute of closing heat-reflective coating Coated surface, open the coated surface where heat absorbing coating 24, to radiate, coordinate the heat reflection of reflecting plate 22, can So that heat is concentrated on heat absorbing coating 24, improves heat dissipation effect;Plated film where closing heat absorbing coating 24 that can also be selective The coated surface where heat-reflective coating 23 is opened in face, coordinates the heat reflection of reflecting plate 22, carries out Heat preservation, and heat is avoided to dissipate It loses.
As depicted in figs. 1 and 2, also there is a waterway 51 in inner furnace body 12, the gear of an annular is inserted in waterway 51 Flowing plate 52, flow-stopping plate 52 are fixedly linked by several disc and external furnace body 11, and coolant liquid is filled in waterway 51, and coolant liquid is logical It crosses a water circulation system and carries out heat exchange.
It is same with the reflecting plate 22 that radiates under opening-wide state into the part waterway 51 of cycle in radiation processes Step, enables heat rapidly to be absorbed by heat absorbing coating 24, and is taken away by water cycle, is quickly cooled down, to coordinate crystal Production.
Water circulation system can be water pump carries out water coke slurry to waterway 51, can also be water pump and compressor set at dissipate Heat structure.
Between flow-stopping plate 52 and external furnace body 11 by one annular connecting plate 53 be connected, control-rod 21 by bearing with connect Plate 53 is connected, and the upper end of control-rod 21 is further fixedly arranged on a control gear 6;It is rotated by controlling gear 6, thus it is possible to vary reflection The original state and the state after swing of plate 22, keep heat dissipation area controllable, radiating efficiency and thermal requirements can be enable to be controlled System.
As shown in figure 5, the inner wall of mounting hole 25 offers several recesses 1, if the outer wall of axle sleeve 26 is uniformly provided with A recess 2 72 is done, is rotatably connected to steel ball 73 in recess 1, steel ball 73 can be partly caught in recess 2 72;Axle sleeve 26 with It is the structure of similar interference fit between 25 inner wall of mounting hole, is fixed with inner furnace body 12 under 26 normality of axle sleeve, it can also be larger The lower rotation of torque effect.
As shown in Figure 3 and Figure 4, control-rod 21 moves straight up, can control 22 outer end of reflecting plate two-by-two against, and hide The coated surface for being coated with heat-reflective coating 23 is closed, the coated surface for being coated with heat absorbing coating 24 and 14 outer wall face of calandria are made;Control-rod 21 move straight down, can control 22 outer end of reflecting plate two-by-two against and covering the coated surface for being coated with heat absorbing coating 24, make plating There are the coated surface and 14 outer wall face of calandria of heat-reflective coating 23;The program is under best heat preservation and highest radiating efficiency state Scheme, the coated surface where heat absorbing coating 24 or the coated surface where heat-reflective coating 23 can be covered completely.
Heat absorbing coating 24 can be black chrome coating, and heat-reflective coating 23 can be that solar energy group company of the U.S. develops LO/MIT-1 type thermal insulating coatings.
The lower end of the upper end and upstream end that go out slot section 33 all has a horn-like opening portion;So as to leading on control-rod 21 Guide groove 3 can be smoothly passed in and out to block 4.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (7)

1. a kind of improved ingot furnace, which is characterized in that including external furnace body (11), inner furnace body (12), ceramic silica crucible (13) With calandria (14), the external furnace body (11) is connected with the lifting gear that a driving external furnace body (11) is swooned up and down, the heating Body (14) is wrapped on the outer wall of ceramic silica crucible (13), and the inner furnace body (12) is set in the outer surface of calandria (14), And there is gap between inner furnace body (12) and calandria (14), it is provided with to calandria (14) outer surface on the inner furnace body (12) The temperature control device for being radiated or being kept the temperature, the temperature control device include the control-rod being uniformly arranged in inner furnace body (12) (21), several reflecting plates (22) are longitudinally connected on every control-rod (21), two plate faces of the reflecting plate (22) are coated with Heat-reflective coating (23), the control-rod (21) are longitudinally plugged on inner furnace body (12), and the control-rod (21) moves up can be by Under the supreme reflection angle for changing reflecting plate (22) one by one, the control-rod (21) is fixedly linked with external furnace body (11).
2. a kind of improved ingot furnace according to claim 1, which is characterized in that the temperature control device includes several and control There is a notch, the reflecting plate (22) to pass through described for the one-to-one mounting hole (25) of bar (21) processed, the mounting hole (25) Notch, the mounting hole (25) are longitudinally opened in inner furnace body (12), and an axle sleeve (26), institute are arranged on the control-rod (21) The inner end for stating reflecting plate (22) is fixed on axle sleeve (26), and guide groove (3), the guide groove are offered on the inner wall of the axle sleeve (26) (3) include spiral helicine steering section (31), the approach section (32) being vertically arranged and what is be vertically arranged go out slot section (33), the entrance The upper end of section (32) is separately connected the both ends for being connected to steering section (31) with the lower end for going out slot section (33), under the approach section (32) End perforation axle sleeve (26) lower face, it is described go out slot section (33) upper end perforation axle sleeve (26) upper surface, the axle sleeve (26) It is rotatably connected in mounting hole (25);There are one can be plugged in leading in guide groove (3) for fixed setting on the control-rod (21) To block (4);The hand of spiral of the steering section (31) of adjacent channels (3) is opposite.
3. a kind of improved ingot furnace according to claim 2, which is characterized in that the inner furnace body between two control-rods (21) (12) inner wall area is referred to as coated surface, is coated with heat-reflective coating (23) and heat absorbing coating (24) on adjacent coated surface respectively.
4. a kind of improved ingot furnace according to claim 3, which is characterized in that also have a water in the inner furnace body (12) Cold chamber (51), the interior flow-stopping plate (52) for being inserted with an annular of the waterway (51), the flow-stopping plate (52) pass through several disc It is fixedly linked with external furnace body (11), coolant liquid is filled in the waterway (51), coolant liquid is carried out by a water circulation system Heat exchange.
5. a kind of improved ingot furnace according to claim 4, which is characterized in that the flow-stopping plate (52) and external furnace body (11) Between by one annular connecting plate (53) be connected, the control-rod (21) is connected by bearing with connecting plate (53), the control The upper end of bar (21) processed is further fixedly arranged on a control gear (6).
6. a kind of improved ingot furnace according to claim 5, which is characterized in that the inner wall of the mounting hole (25) offers The outer wall of several recesses one (71), the axle sleeve (26) is uniformly provided with several recesses two (72), the recess one (71) It is inside rotatably connected to steel ball (73), the steel ball (73) can partly be caught in the recess two (72).
7. a kind of improved ingot furnace according to claim 6, which is characterized in that the control-rod (21) is moved straight up It is dynamic, reflecting plate (22) outer end can be controlled two-by-two against and covering the coated surface for being coated with heat-reflective coating (23), make to be coated with heat absorption The coated surface of coating (24) and calandria (14) outer wall face;The control-rod (21) is moved straight down, can control reflection Plate (22) outer end is two-by-two against and covering the coated surface for being coated with heat absorbing coating (24), make the plated film for being coated with heat-reflective coating (23) Face and calandria (14) outer wall face.
CN201721675998.0U 2017-12-05 2017-12-05 A kind of improved ingot furnace Active CN207608657U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721675998.0U CN207608657U (en) 2017-12-05 2017-12-05 A kind of improved ingot furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721675998.0U CN207608657U (en) 2017-12-05 2017-12-05 A kind of improved ingot furnace

Publications (1)

Publication Number Publication Date
CN207608657U true CN207608657U (en) 2018-07-13

Family

ID=62796389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721675998.0U Active CN207608657U (en) 2017-12-05 2017-12-05 A kind of improved ingot furnace

Country Status (1)

Country Link
CN (1) CN207608657U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107893258A (en) * 2017-12-05 2018-04-10 浙江芯能光伏科技股份有限公司 A kind of energy-saving polycrystalline ingot furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107893258A (en) * 2017-12-05 2018-04-10 浙江芯能光伏科技股份有限公司 A kind of energy-saving polycrystalline ingot furnace
CN107893258B (en) * 2017-12-05 2023-09-15 浙江芯能光伏科技股份有限公司 Energy-saving polycrystalline ingot furnace

Similar Documents

Publication Publication Date Title
CN102140672B (en) Double-cavity thermal field of crystal silicon ingot casting furnace and control method thereof
CN202390535U (en) Continuous vacuum plating facility with heating device
CN201473323U (en) Polycrystalline silicon ingot production furnace capable of effectively controlling thermal field
CN202064029U (en) Double-cavity thermal field of crystal silicon ingot furnace
CN207608657U (en) A kind of improved ingot furnace
CN102021644A (en) Crystal silicon ingot casting furnace thermal field thermal door control device
CN207608660U (en) The control structure of reflecting plate in a kind of polycrystalline ingot furnace
CN107893258A (en) A kind of energy-saving polycrystalline ingot furnace
CN207537597U (en) A kind of ingot furnace inner furnace body structure with heat preservation and heat sinking function
CN101806188B (en) Phase-changing energy storage louver
CN201883183U (en) Polysilicon ingot casting furnace thermal door device capable of effectively controlling thermal field
CN210711701U (en) Heating furnace for metal surface carburizing processing
CN201962416U (en) Hot door control device for thermal field of crystal silicon ingot furnace
CN207376139U (en) Orient the energy-saving and high efficient polycrystalline silicon ingot or purifying furnace of water-cooling
CN103331446B (en) Low-temperature hot air circulation heat treatment furnace for magnetic core and application method of heat treatment furnace
CN215799147U (en) Hot bending machine
CN205227489U (en) Solar heating heat collector
CN201173686Y (en) Piston salt core preheating furnace
CN208124660U (en) The reflecting plate regulating device of double manifold vacuum cast solar thermal collector
CN206244642U (en) A kind of achievable single-order and the glass tempering heating furnace of multistage heating function conversion
CN102912412B (en) A kind of method realizing polycrystalline silicon ingot or purifying furnace cooling and chiller
CN201343968Y (en) Novel energy-saving window
CN202116692U (en) Rotary lifting mechanism of composite cylindrical cam of thermal switch of polysilicon ingot furnace
CN213203276U (en) Energy-saving device of polycrystalline silicon ingot furnace
CN106186652B (en) A kind of split type glass bending furnace of quantity-produced

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant