CN204251764U - A kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment - Google Patents
A kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment Download PDFInfo
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- CN204251764U CN204251764U CN201420705320.2U CN201420705320U CN204251764U CN 204251764 U CN204251764 U CN 204251764U CN 201420705320 U CN201420705320 U CN 201420705320U CN 204251764 U CN204251764 U CN 204251764U
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Abstract
A kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment is disclosed, comprise the electronic flow valve be directly connected with cooling water inlet pipe, the electronic flow needle-valve in parallel with described electronic flow valve, the electronic grout flow meter be connected in series with cooling water outlet pipe, carry out central controlled PLC, described electronic flow valve, electronic flow needle-valve, electronic grout flow meter and described PLC are connected by signal wire and communicate; Described electronic flow valve control accuracy reaches 10 liters/second, and having digital interface can carry out digital communication with described PLC; The minimal adjustment scope of described electronic flow needle-valve is 1 liter/second, and having digital interface can carry out digital communication with described PLC.Utilizing this patent can control within ± 1 liter of/second degree making kyropoulos sapphire crystallization component cooling water system fluctuations in discharge, decreasing the impact of discharge fluctuation on crystal growing process, improve the quality of crystal growth.
Description
Technical field
This patent relates to kyropoulos sapphire crystal and manufactures field, particularly relates to a kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment, is applicable to other similar field simultaneously.
Background technology
Sapphire is also known as white stone, that hardness is only second to adamantine crystalline material in the world, owing to having excellent physics, machinery, chemistry and infrared light transmission performance, it is the material that the fields such as microelectronics, aerospace, military project are badly in need of always, especially optical grade large-size sapphire material, because it has stable performance, the huge market demand, comprehensive utilization ratio and added value of product high, become in recent years research and development and industrialization focus both at home and abroad.
The general process of sapphire crystal manufacture is the seed crystal and melt contacts of catching a cold one, if the temperature at interface is lower than zero pour, then seed crystal starts growth, constantly grow up to make crystal, just need the temperature reducing melt gradually, simultaneously rotating crystal, to improve the temperature distribution of melt.Also slowly (or stage by stage) can carry crystal, to expand radiating surface.Crystal does not contact with sidewall of crucible in process of growth or at the end of growth, this greatly reduces the stress of crystal.But, when crystal and remaining melt depart from, usually larger thermal shocking can be produced.Pyrosol top-seeded solution growth conventional is at present improvement and the development of this kyropoulos.
Because thermograde is very little, kyropoulos sapphire crystal growth process is one and temperature-fall period slowly, and the power range of decrease hourly is lower than 50W, and heating power is then up to 50KW.Fluctuation small in process of growth just has an impact to crystal growing process.The factor of power is affected except thermal field in long brilliant equipment, also has water-cooling system, unnecessary caloric requirement is taken away by water-cooled, because the water yield of water-cooling system is very large, generally can reach 6000 ls/h, the heat that the change of minute water flow all can cause water-cooling system to be carried just have considerable change, this will have significant impact to crystal growing process, adopt a kind of device that automatically can control discharge extremely important for the crystal of growing high-quality, automatic control process is also highly beneficial for increasing work efficiency for this reason.
Summary of the invention
(1) technical problem that will solve
Main purpose of the present invention is the cooling water flow automatic control device providing a kind of kyropoulos sapphire crystallization equipment, suppresses cooling water flow fluctuation, improves the quality of crystal growth.
(2) technical scheme
For achieving the above object, provide a kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment, comprise the electronic flow valve be directly connected with cooling water inlet pipe, the electronic flow needle-valve in parallel with described electronic flow valve, the electronic grout flow meter be connected in series with cooling water outlet pipe, carry out central controlled PLC, described electronic flow valve, electronic flow needle-valve, electronic grout flow meter and described PLC are connected by signal wire and communicate, described PLC inside arranges cooling water flow control algolithm, described cooling water flow control algolithm comprises the following steps:
Step one: the electronic grout flow meter described in detection, obtains water flow, the electronic flow valve described in adjustment and the aperture size of electronic flow needle-valve, until the output valve of described electronic grout flow meter is setting flow Q
0;
Step 2: the electronic grout flow meter described in detecting in real time, obtains water flow Q, if flow offsets, | Q-Q
0| >1 liter/second, then perform step 3;
Step 3: the electronic flow needle-valve described in closedown, the electronic flow valve described in adjustment makes Q
0-Q<10 liter/second, described electronic flow needle-valve is then regulated to make | Q
0-Q|<1 liter/second, then return step 2.
Described electronic flow valve control accuracy reaches 10 liters/second, and having digital interface can carry out digital communication with described PLC.
The minimal adjustment scope of described electronic flow needle-valve is 1 liter/second, and having digital interface can carry out digital communication with described PLC.
(3) beneficial effect
As can be seen from technique scheme, this patent has following beneficial effect: utilize this cooling water flow automatic control device that the cooling water system fluctuations in discharge of kyropoulos sapphire crystallization equipment can be made to control within ± 1 liter/second, decrease the impact of discharge fluctuation on crystal growing process, improve the quality of crystal growth.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of long brilliant equipment;
Fig. 2 is the schema of cooling water flow control algolithm.
Embodiment
Below in conjunction with specific embodiment, this patent is further expanded description, but it is pointed out that this patent structure required for protection is not limited to the concrete structure in embodiment and Figure of description.For other structure formations that those of ordinary skill in the art can know by inference, also belong within this patent scope required for protection.
A kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment 1, comprise the electronic flow valve 4 be directly connected with cooling water inlet pipe 2, described electronic flow valve 4 can regulate the flow of water coolant on a large scale, also comprise the electronic flow needle-valve 5 in parallel with described electronic flow valve 4, described electronic flow needle-valve 5 can regulate the flow of water coolant among a small circle, but sharpness of regulation is high, also comprise the electronic grout flow meter 6 be connected in series with cooling water outlet pipe 3, described electronic grout flow meter 6 can measure the uninterrupted of water coolant, also comprise and carry out central controlled PLC, described electronic flow valve 4, electronic flow needle-valve 5, electronic grout flow meter 6 and described PLC are connected by signal wire and communicate.
Described electronic flow valve 4 control accuracy reaches 10 liters/second, and having digital interface can carry out digital communication with described PLC.The minimal adjustment scope of described electronic flow needle-valve 5 is 1 liter/second, and having digital interface can carry out digital communication with described PLC.
Described PLC inside arranges cooling water flow control algolithm, and described cooling water flow control algolithm comprises the following steps:
Step one: the electronic grout flow meter 6 described in detection, obtains water flow, the electronic flow valve 4 described in adjustment and the aperture size of electronic flow needle-valve 5, until the output valve of described electronic grout flow meter 6 is setting flow Q
0;
Step 2: the electronic grout flow meter 6 described in detecting in real time, obtains water flow Q, if flow offsets, | Q-Q
0| >1 liter/second, then perform step 3;
Step 3: the electronic flow needle-valve 5 described in closedown, the electronic flow valve 4 described in adjustment makes Q
0-Q<10 liter/second, described electronic flow needle-valve 5 is then regulated to make | Q
0-Q|<1 liter/second, then return step 2.
Because the regulation range of described electronic flow needle-valve 5 is little, but there is very high precision, because in time there is flow excursion, first close described electronic flow needle-valve 5, allow described electronic flow valve 4 adjust flux coverage area Q
0-Q<10 liter/second, then carry out high precision adjustment by described electronic flow needle-valve 5, make | Q
0-Q|<1 liter/second, reach control object.
Claims (3)
1. the cooling water flow automatic control device of a kyropoulos sapphire crystallization equipment, it is characterized in that: comprise the electronic flow valve be directly connected with cooling water inlet pipe, the electronic flow needle-valve in parallel with described electronic flow valve, the electronic grout flow meter be connected in series with cooling water outlet pipe, carry out central controlled PLC, described electronic flow valve, electronic flow needle-valve, electronic grout flow meter and described PLC are connected by signal wire and communicate.
2. the cooling water flow automatic control device of a kind of kyropoulos sapphire crystallization equipment according to claim 1, it is characterized in that: described electronic flow valve control accuracy reaches 10 liters/second, having digital interface can carry out digital communication with described PLC.
3. the cooling water flow automatic control device of a kind of kyropoulos sapphire crystallization equipment according to claim 1, it is characterized in that: the minimal adjustment scope of described electronic flow needle-valve is 1 liter/second, having digital interface can carry out digital communication with described PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705320.2U CN204251764U (en) | 2014-11-22 | 2014-11-22 | A kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705320.2U CN204251764U (en) | 2014-11-22 | 2014-11-22 | A kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204251764U true CN204251764U (en) | 2015-04-08 |
Family
ID=52956089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420705320.2U Expired - Fee Related CN204251764U (en) | 2014-11-22 | 2014-11-22 | A kind of cooling water flow automatic control device of kyropoulos sapphire crystallization equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204251764U (en) |
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2014
- 2014-11-22 CN CN201420705320.2U patent/CN204251764U/en not_active Expired - Fee Related
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20151122 |
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