CN209197476U - A kind of sealing fire door for photovoltaic cell low pressure diffusion technique - Google Patents
A kind of sealing fire door for photovoltaic cell low pressure diffusion technique Download PDFInfo
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- CN209197476U CN209197476U CN201821757524.5U CN201821757524U CN209197476U CN 209197476 U CN209197476 U CN 209197476U CN 201821757524 U CN201821757524 U CN 201821757524U CN 209197476 U CN209197476 U CN 209197476U
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- fire door
- fixedly connected
- low pressure
- thermal insulating
- cooling tube
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a kind of sealing fire doors for photovoltaic cell low pressure diffusion technique, are related to photovoltaic element production technical field.The utility model includes fire door main body and low pressure diffusion furnace, fire door body side face is rotatably connected to hinge, another surface of fire door main body is fixedly connected with thermal insulating disc, thermal insulating disc side surface cover is equipped with several sealing rings, thermal insulating disc week, side was fixedly connected with an external cooling tube, external cooling tube is between several sealing rings, built-in cooling tube is offered inside thermal insulating disc, if being fixedly connected with dry temperature sensor inside thermal insulating disc, a vacuum warehouse is offered inside thermal insulating disc, the utility model passes through external cooling tube, the mutual cooperation of built-in cooling tube and vacuum warehouse, so that oven door body has the function of vacuum heat-insulation and water-cooled cooling, it can effectively prevent near the heat transfer to sealing ring of low pressure diffusion furnace, have the advantages that improve sealing stability.
Description
Technical field
The utility model relates to photovoltaic element production technical fields, specially a kind of to be used for photovoltaic cell low pressure diffusion technique
Sealing fire door.
Background technique
Solar battery is the device for directly luminous energy being converted to by photoelectric effect or photochemical effect electric energy.It is one
Kind utilizes the optoelectronic semiconductor thin slice of the sunlight direct generation of electricity.As long as the illumination that it is satisfied certain illumination conditions is arrived, moment
Exportable voltage and electric current is generated in the case where there is circuit, be physically known as photovoltaic.Wherein, production is spread
P-N junction is one of core and key of cell piece quality of crystal silicon solar, and the system by the way of low pressure diffusion
Make P-N junction, it can be achieved that production capacity is significantly promoted, and spread uniform cell piece with higher transfer efficiency, can be improved
The competitiveness of product in market.
It is negative pressure that existing low pressure diffusion technique, which needs the pressure in low pressure diffusion furnace, and technical process is to sealing requirements pole
It is high.If poor sealing, environment under low pressure required for low pressure is spread on the one hand can not be formed, technique requirement is not achieved；Another party
Face, under external atmospheric pressure effect, reaction tube outer gas, impurity etc. can enter in reaction tube, influence the quality of PN junction preparation,
Lead to scrap of the product.However, the process environments of diffusion furnace have certain particularity, furnace tube temperature is very high in diffusion process, phosphorus
Diffusion technique temperature is 800~900 DEG C, and under so high temperature environment, sealing ring is directly easy to Yin Wen with boiler tube contact
It spends high and aging even damages, leads to seal failure, therefore being difficult to realize sealed environment under high temperature environment is this field skill
Art personnel's technical issues that need to address.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of sealing for photovoltaic cell low pressure diffusion technique
Fire door, by the mutual cooperation of external cooling tube, built-in cooling tube and vacuum warehouse, solve be difficult to realize under high temperature environment it is close
The problem of seal ring border.
In order to achieve the above object, the utility model is achieved by the following technical programs: one kind is low for photovoltaic cell
The sealing fire door of diffusion technique, including fire door main body and low pressure diffusion furnace are pressed, the rotation connection of fire door body side face is hinged
Chain, the fire door body side are installed at the fire door of low pressure diffusion furnace by hinge；
One surface of fire door main body is fixedly connected with control box, and another surface of fire door main body is fixedly connected with heat-insulated
Disk；
Thermal insulating disc side surface cover is set there are two sealing ring, the thermal insulating disc week side be fixedly connected with an external cooling
Pipe, the external cooling tube are located between two sealing rings, and built-in cooling tube, the thermal insulating disc are offered inside the thermal insulating disc
Inside is fixedly connected with eight temperature sensors, offers a vacuum warehouse inside the thermal insulating disc.
Further, one surface of low pressure diffusion furnace is fixedly connected with fixed link, fixed link one end rotation connection
There is compact heap, the compact heap inner surface is threaded with screw rod, and described screw rod one end is fixedly connected with handle, the fire door master
One surface of body is fixedly connected with gasket, and one surface of gasket is flexibly connected with screw rod one end.
Further, one surface of control box has extended through water inlet pipe and outlet pipe, and the control box inner surface is solid
Surely it is connected with a cooling water pump, the cooling water pump water inlet is connected to water inlet pipe, described outlet pipe one end and built-in cooling tube
Connection.
Further, one surface of control box is fixedly connected with display screen, and one surface of control box is fixedly connected with
Input keyboard, the control box inner surface are fixedly connected with control mainboard.
Further, one table of control box has extended through air inlet pipe and an air outlet pipe, the air inlet pipe and an air outlet pipe week
Side has been respectively fixedly connected with solenoid valve, and the air inlet pipe and an air outlet pipe is located at one end inside control box and runs through fire door main body simultaneously
And it is connected to thermal insulating disc.
Further, one surface of control box is fixedly connected with danger button, described built-in cooling tube one end with it is external
Cooling tube connection.
The utility model has the following beneficial effects:
1, the sealing fire door for being used for photovoltaic cell low pressure diffusion technique passes through external cooling tube, built-in cooling tube and true
The mutual cooperation of hole capital after selling all securities effectively can prevent low pressure from expanding so that oven door body has the function of vacuum heat-insulation and water-cooled cooling
Near the heat transfer to sealing ring for dissipating furnace, the sealing performance of sealing ring is kept, has the advantages that improve sealing stability.
2, the sealing fire door for being used for photovoltaic cell low pressure diffusion technique, by the cooperation between screw rod and gasket, so that
Operator can be fixed oven door body with rotating handles, improved the structural strength of oven door body closing, be conducive to sealing ring
Steady operation.
3, the sealing fire door for being used for photovoltaic cell low pressure diffusion technique, built-in cooling tube flow section is big, can be with heat
Amount fully absorbs, and external cooling tube flowing velocity is fast, can to heat-insulated panel surface carry out fast cooling, built-in cooling tube with it is external
Cooling tube cooperates, and the cooling efficiency of oven door body can be improved, and has the advantages that reduce sealing ring temperature environment nearby.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the sealing fire door for photovoltaic cell low pressure diffusion technique of the utility model；
Fig. 2 is the overlooking structure diagram of Fig. 1；
Fig. 3 is the positive structure diagram of Fig. 1；
Fig. 4 is the sectional view in Fig. 3 at A-A；
Fig. 5 is the partial enlarged view in Fig. 4 at A；
In attached drawing, parts list represented by the reference numerals are as follows:
In figure: 1- fire door main body, 2- hinge, 3- control box, 4- fixed link, 5- air inlet pipe, 6- escape pipe, 7- handle, 8-
Thermal insulating disc, 9- solenoid valve, 10- screw rod, 11- compact heap, 12- gasket, 13- water inlet pipe, 14- outlet pipe, 15- danger button, 16-
Display screen, 17- input keyboard, 18- control mainboard, 19- cooling water pump, 20- vacuum warehouse, 21- sealing ring, 22- temperature sensor,
The external cooling tube of 23-, cooling tube built in 24-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of for photovoltaic cell low pressure diffusion technique
Fire door is sealed, including fire door main body 1 and low pressure diffusion furnace, 1 one side of fire door main body are rotatably connected to hinge 2, fire door main body 1 one
Side is installed at the fire door of low pressure diffusion furnace by hinge 2；
1 one surface of fire door main body is fixedly connected with control box 3, and another surface of fire door main body 1 is fixedly connected with thermal insulating disc 8.
Wherein, one surface of low pressure diffusion furnace is fixedly connected with fixed link 4, and 4 one end of fixed link is rotatably connected to compact heap 11,
11 inner surface of compact heap is threaded with screw rod 10, and 10 one end of screw rod is fixedly connected with handle 7, and 1 one surface of fire door main body is fixed
It is connected with gasket 12,12 1 surface of gasket is flexibly connected with 10 one end of screw rod.
Wherein, 3 one surface of control box is fixedly connected with display screen 16, and display screen 16 is used for displays temperature information, cooling water
The start and stop state of pump 19 and solenoid valve 9,3 one surface of control box are fixedly connected with input keyboard 17, and input keyboard 17 is for inputting
Program command, 3 inner surface of control box are fixedly connected with control mainboard 18, and control mainboard 18 is 6ES7 231-7PB22-0XA8 type
Number PLC controller, 18 one end of control mainboard are electrically connected by electric wire with direct current, the circuit control for entire fire door.
Wherein, 3 one surface of control box is fixedly connected with danger button 15, and danger button 15 is for occurring promptly stopping when accident
The only control circuit of low pressure diffusion furnace.
Wherein as illustrated in figures 4-5,8 side surface cover of thermal insulating disc is set there are two sealing ring 21, and 8 weeks sides of thermal insulating disc are fixedly connected
There is an external cooling tube 23, external cooling tube 23 is located between two sealing rings 21, and built-in cooling tube is offered inside thermal insulating disc 8
24, eight WZP-187 model temperature sensors 22 are fixedly connected with inside thermal insulating disc 8, offer a vacuum warehouse inside thermal insulating disc 8
20。
Wherein, 3 one surface of control box has extended through water inlet pipe 13 and outlet pipe 14, and 3 inner surface of control box is fixedly connected
There is a cooling water pump 19,19 water inlet of cooling water pump is connected to water inlet pipe 13, and 14 one end of outlet pipe is connected to built-in cooling tube 24.
Wherein, 3 one table of control box has extended through air inlet pipe 5 and escape pipe 6, and 6 one end of escape pipe and existing vacuum pump connect
Logical, 6 weeks sides of air inlet pipe 5 and escape pipe have been respectively fixedly connected with solenoid valve 9, and air inlet pipe 5 and escape pipe 6 are located in control box 3
The one end in portion is connected to through fire door main body 1 and with thermal insulating disc 8.
Wherein, built-in 24 one end of cooling tube is connected to external cooling tube 23.
The concrete application of the present embodiment are as follows: after low pressure diffusion furnace loads cell piece, close oven door body 1, rotatably compress block
11, then rotating handles 7, handle 7 drives screw rod 10 to rotate, because compact heap 11 is connect with fixed link 4, screw rod 10 and 11 phase of compact heap
To movement until 10 one end of screw rod is contacted with gasket 12, fixation is tightened by screw rod 10 and gasket 12, completes the close of oven door body 1
Envelope, gasket 12 can protect oven door body 1 and be not damaged；When the work of low pressure diffusion furnace, it is manually entered using input keyboard 17
Control command, control command, which is transmitted to, to be controlled in mainboard 18, and control mainboard 18 controls the solenoid valve 9 on escape pipe 6 and opens, outlet
The vacuum pump work that pipe 6 is connected to, the air inside vacuum warehouse 20 is detached to vacuum, is effectively completely cut off most heat and is passed
It passs, control mainboard 18 controls cooling water pump 19 and works, extraneous cooling water is pumped into external cooling tube 23 by water inlet pipe 13, because
The flow section of external cooling tube 23 is smaller, so flow velocity is very fast, can quickly take away fraction heat, in external cooling tube 23
Cooling water enter in built-in cooling tube 24,, can be abundant so circulation is big because the flow section of built-in cooling tube 24 is larger
Amount of heat is absorbed, fire door main body 1 out of is taken heat by outlet pipe 14, so that sealing ring 21 nearby keeps stable thermal insulation
Can, keep the leakproofness of fire door main body 1；Temperature sensor 22 acquires the temperature around vacuum warehouse 20, and temperature information is transmitted to
In control mainboard 18, if excessively high 21 sealing performance of influence sealing ring of temperature, control mainboard 18 shows alarm signal by display screen 16
Breath, operator can stop the work of low pressure diffusion furnace by pressing danger button 15.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a kind of sealing fire door for photovoltaic cell low pressure diffusion technique, including fire door main body (1) and low pressure diffusion furnace, described
Fire door main body (1) one side is rotatably connected to hinge (2), and fire door main body (1) side is installed on low pressure expansion by hinge (2)
At the fire door for dissipating furnace, it is characterised in that:
(1) one surface of fire door main body is fixedly connected with control box (3), and another surface of the fire door main body (1) is fixedly connected
There are thermal insulating disc (8)；
Thermal insulating disc (8) the side surface cover is equipped with several sealing rings (21), and all sides of the thermal insulating disc (8) are fixedly connected with outside one
It sets cooling tube (23), the external cooling tube (23) is located between two sealing rings (21), offers inside the thermal insulating disc (8)
Built-in cooling tube (24), the thermal insulating disc (8) is if internal be fixedly connected with dry temperature sensor (22), in the thermal insulating disc (8)
Portion offers a vacuum warehouse (20).
2. a kind of sealing fire door for photovoltaic cell low pressure diffusion technique according to claim 1, which is characterized in that institute
One surface of low pressure diffusion furnace to be stated to be fixedly connected with fixed link (4), described fixed link (4) one end is rotatably connected to compact heap (11),
Compact heap (11) inner surface is threaded with screw rod (10), and described screw rod (10) one end is fixedly connected with handle (7), described
(1) one surface of fire door main body is fixedly connected with gasket (12), and (12) one surface of gasket is flexibly connected with screw rod (10) one end.
3. a kind of sealing fire door for photovoltaic cell low pressure diffusion technique according to claim 1, which is characterized in that institute
It states (3) one surface of control box and has extended through water inlet pipe (13) and outlet pipe (14), control box (3) inner surface is fixedly connected
Have a cooling water pump (19), cooling water pump (19) water inlet is connected to water inlet pipe (13), described outlet pipe (14) one end with
Built-in cooling tube (24) connection.
4. a kind of sealing fire door for photovoltaic cell low pressure diffusion technique according to claim 1, which is characterized in that institute
It states (3) one surface of control box to be fixedly connected with display screen (16), (3) one surface of control box is fixedly connected with input keyboard
(17), control box (3) inner surface is fixedly connected with control mainboard (18).
5. a kind of sealing fire door for photovoltaic cell low pressure diffusion technique according to claim 1, which is characterized in that institute
It states (3) one table of control box and has extended through air inlet pipe (5) and escape pipe (6), the air inlet pipe (5) and all sides of escape pipe (6)
It has been respectively fixedly connected with solenoid valve (9), the air inlet pipe (5) and escape pipe (6) are located at the internal one end of control box (3) through furnace
It door main body (1) and is connected to thermal insulating disc (8).
6. a kind of sealing fire door for photovoltaic cell low pressure diffusion technique according to claim 1, which is characterized in that institute
It states (3) one surface of control box to be fixedly connected with danger button (15), described built-in cooling tube (24) one end and external cooling tube
(23) it is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821757524.5U CN209197476U (en) | 2018-10-27 | 2018-10-27 | A kind of sealing fire door for photovoltaic cell low pressure diffusion technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821757524.5U CN209197476U (en) | 2018-10-27 | 2018-10-27 | A kind of sealing fire door for photovoltaic cell low pressure diffusion technique |
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| Publication Number | Publication Date |
|---|---|
| CN209197476U true CN209197476U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821757524.5U Active CN209197476U (en) | 2018-10-27 | 2018-10-27 | A kind of sealing fire door for photovoltaic cell low pressure diffusion technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749198A (en) * | 2019-10-21 | 2020-02-04 | 咸阳华友新能源窑炉设备有限公司 | Detachable air-cooled kiln |
-
2018
- 2018-10-27 CN CN201821757524.5U patent/CN209197476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749198A (en) * | 2019-10-21 | 2020-02-04 | 咸阳华友新能源窑炉设备有限公司 | Detachable air-cooled kiln |
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