CN204918838U - Single crystal growing furnace circulating water security device - Google Patents
Single crystal growing furnace circulating water security device Download PDFInfo
- Publication number
- CN204918838U CN204918838U CN201520609259.6U CN201520609259U CN204918838U CN 204918838 U CN204918838 U CN 204918838U CN 201520609259 U CN201520609259 U CN 201520609259U CN 204918838 U CN204918838 U CN 204918838U
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- Prior art keywords
- water
- single crystal
- crystal growing
- growing furnace
- heat exchanger
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- Expired - Fee Related
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Abstract
The utility model provides a single crystal growing furnace circulating water security device, behind the circulating water in the circulating water pump extraction circulation tank, cool down to the single crystal growing furnace after the refrigerated water cooling in plate heat exchanger, reserve pump and circulating water pump parallel connection, and be in the closed condition, set up electric contact pressure gauge in the condenser tube way between plate heat exchanger and single crystal growing furnace, a water pressure for detecting the cooling water, and output control signal gives the soft start cabinet, the soft start cabinet starts the reserve pump according to this signal, cool off in getting into plate heat exchanger with the circulating water in the extraction circulation tank, the entering is cooled down to the single crystal growing furnace. The utility model discloses a whether add electric contact pressure gauge in cooling water circulation system comes monitored control system to break down to control the start -up of reserve pump by the soft start cabinet when breaking down, thereby guarantee that single crystal stove circulating water can have a basic water pressure, can keep minimum circulation water yield on the stove top, prevent the dry combustion method of single crystal growing furnace.
Description
Technical field
The utility model relates to automatic water cooling cycle control field, specifically a kind of single crystal growing furnace recirculated water safety protection device.
Background technology
Automatic water warm water pressure control system is the important leverage that single crystal growing furnace normally runs, and single crystal growing furnace internal heater temperatures as high more than 1500 is spent, and ensures the cooling of outside temperature by water coolant, and stable water temperature and hydraulic pressure supply can ensure that single crystal growing furnace is produced normally.
Current system design be a set of hydraulic pressure automatic control system, this system controls a set of frequency transformer and 8 contactors by a PLC, be abutted against tentaculum rotation and switch the water pump input coefficient operation on demand number of units controlling 4 parallel runnings, last converting operation, to ensure stable water pressure, this system accurately can control hydraulic pressure according to setting under normal circumstances, but find in actual use when fluctuation appears in electrical network, or electrical network has this system when abnormal clutter enters in system and there will be control failure fault, and can not automatically recover, water pump shuts down, directly cause single crystal growing furnace lack of water, once find cause single crystal growing furnace dry combustion method not in time, consequence is very serious.
Utility model content
For solve in prior art due to electric network fault cause water pump to shut down, single crystal growing furnace dry combustion method problem, the utility model provides a kind of single crystal growing furnace recirculated water safety protection device, this device effectively solve because of PLC and frequency converter control system break down time, cause system lack of water, and cause the problem of single crystal growing furnace dry combustion method.
The utility model is the technical scheme solving the problems of the technologies described above employing: a kind of single crystal growing furnace recirculated water safety protection device, comprise a cyclic water tank, some water circulating pumps and plate-type heat exchanger, wherein, after water circulating pump extracts the recirculated water in cyclic water tank, after the refrigerated water cooling in plate-type heat exchanger, single crystal growing furnace is lowered the temperature, cooled recirculated water is got back in cyclic water tank, also be provided with a soft-start cabinet, one electro connecting pressure gauge and reserve pump, wherein, reserve pump and some above-mentioned water circulating pumps are connected in parallel, and be in closing condition, described electro connecting pressure gauge is arranged in the cooling water pipeline between plate-type heat exchanger and single crystal growing furnace, for detecting the hydraulic pressure of water coolant, and export control signal to soft-start cabinet, soft-start cabinet is according to this signal enabling reserve pump, enter in plate-type heat exchanger with the recirculated water extracted in cyclic water tank and cool, enter and single crystal growing furnace is lowered the temperature.
Be provided with warning howler in described safety protection device, and controlled by electro connecting pressure gauge output signal.
In the utility model, the shock resistance electro connecting pressure gauge of electro connecting pressure gauge to be range be 0-0.6MP, and set it to lower than lower limit during 0.20MPa that often battle, K1 closed, when hydraulic pressure exports closure signal lower than this tensimeter electric contact during set(ting)value; The soft starting device that a set of power is 50KW is installed in soft-start cabinet, using the closure signal of electro connecting pressure gauge as initiating signal, also can manually boots simultaneously, stop; Reserve pump and water circulating pump parallel running, and controlled by soft starting cabinet.
When abnormal conditions cisco unity malfunction appears in water circulating pump, system water is forced down when 0.20MPa, electro connecting pressure gauge lower limit K1 switch closes, soft initiator main contactor KM1 obtains electric, KM1 auxiliary node closes simultaneously, KM1 self-insurance, reserve pump starts, system pressure returns to about 0.15MPa, ensures that single crystal growing furnace circulating water system maintains certain discharge, makes single crystal growing furnace be unlikely to occur dry combustion method, avoid occurring extreme case, KM1 auxiliary node closes simultaneously, alarm activation, reminds staff to overhaul to scene.When after failture evacuation, staff presses SB1, this system is stopped, is automatically in stand-by state.
Beneficial effect: whether the utility model carrys out supervisory system break down by setting up electro connecting pressure gauge in cooling water recirculation system, and output signal to soft-start cabinet when breaking down, soft-start cabinet is according to the startup of signal control reserve pump, thus keep the cooling to single crystal growing furnace, thus achieve and occur that abnormal conditions cause during the decompression of water route in system and collect signal in time, and automatically put into operation, ensure that single crystal growing furnace cycle water energy has a basic hydraulic pressure, the quantity of circulating water that single crystal growing furnace one is minimum can be maintained, prevent single crystal growing furnace from occurring dry combustion method.The utility model technical project theory is simple, installs to implement and easy to operate, and safety performance is good.
Accompanying drawing explanation
Fig. 1 is circulating cooling schematic diagram of the present utility model;
Fig. 2 is electric control theory figure;
Reference numeral: 1, cyclic water tank, 2, water circulating pump, 3, plate-type heat exchanger, 4, single crystal growing furnace, 5, electro connecting pressure gauge, 6, reserve pump, 7, warning howler.
Embodiment
As shown in the figure, a kind of single crystal growing furnace recirculated water safety protection device, comprise a cyclic water tank 1, some water circulating pumps 2 and plate-type heat exchanger 3, wherein, after water circulating pump 2 extracts the recirculated water in cyclic water tank 1, after the refrigerated water cooling in plate-type heat exchanger 3, single crystal growing furnace 4 is lowered the temperature, cooled recirculated water is got back in cyclic water tank 1, also be provided with a soft-start cabinet, one electro connecting pressure gauge 5 and reserve pump 6, wherein, reserve pump 6 and above-mentioned some water circulating pumps 2 are connected in parallel, and be in closing condition, described electro connecting pressure gauge 5 is arranged in the cooling water pipeline between plate-type heat exchanger 3 and single crystal growing furnace 4, for detecting the hydraulic pressure of water coolant, and export control signal to soft-start cabinet, soft-start cabinet is according to this signal enabling reserve pump 6, enter in plate-type heat exchanger 3 with the recirculated water extracted in cyclic water tank 1 and cool, enter and single crystal growing furnace 4 is lowered the temperature, in described safety protection device, warning howler 7 can also be set, and be controlled by electro connecting pressure gauge 5 output signal.
In the utility model, electro connecting pressure gauge 5 for range be the shock resistance electro connecting pressure gauge of 0-0.6MP, and set it to lower than lower limit during 0.20MPa often battle K1 close, when hydraulic pressure lower than during set(ting)value this tensimeter electric contact export closure signal; The soft starting device that a set of power is 50KW is installed in soft-start cabinet, using the closure signal of electro connecting pressure gauge as initiating signal, also can manually boots simultaneously, stop; Reserve pump 6 and water circulating pump 2 parallel running, and controlled by soft starting cabinet.
When abnormal conditions cisco unity malfunction appears in water circulating pump 2, system water is forced down when 0.20MPa, electro connecting pressure gauge 5 lower limit K1 switch closes, soft initiator main contactor KM1 obtains electric, KM1 auxiliary node closes simultaneously, KM1 self-insurance, reserve pump 6 starts, system pressure returns to about 0.15MPa, ensures that single crystal growing furnace 4 circulating water system maintains certain discharge, makes single crystal growing furnace 4 be unlikely to occur dry combustion method, avoid occurring extreme case, KM1 auxiliary node closes simultaneously, and warning howler 7 starts, and reminds staff to overhaul to scene.When after failture evacuation, staff presses SB1, this system is stopped, is automatically in stand-by state.
Claims (2)
1. a single crystal growing furnace recirculated water safety protection device, comprise a cyclic water tank (1), some water circulating pumps (2) and plate-type heat exchanger (3), wherein, after water circulating pump (2) extracts the recirculated water in cyclic water tank (1), after the refrigerated water cooling in plate-type heat exchanger (3), single crystal growing furnace (4) is lowered the temperature, cooled recirculated water is got back in cyclic water tank (1), it is characterized in that: be also provided with a soft-start cabinet, one electro connecting pressure gauge (5) and reserve pump (6), wherein, reserve pump (6) and above-mentioned some water circulating pumps (2) are connected in parallel, and be in closing condition, described electro connecting pressure gauge (5) is arranged in the cooling water pipeline between plate-type heat exchanger (3) and single crystal growing furnace (4), for detecting the hydraulic pressure of water coolant, and export control signal to soft-start cabinet, soft-start cabinet is according to this signal enabling reserve pump (6), cooling in plate-type heat exchanger (3) is entered with the recirculated water extracted in cyclic water tank (1), enter and single crystal growing furnace (4) is lowered the temperature.
2. a kind of single crystal growing furnace recirculated water safety protection device according to claim 1, is characterized in that: be provided with warning howler (7) in described safety protection device, and is controlled by electro connecting pressure gauge (5) output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609259.6U CN204918838U (en) | 2015-08-14 | 2015-08-14 | Single crystal growing furnace circulating water security device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609259.6U CN204918838U (en) | 2015-08-14 | 2015-08-14 | Single crystal growing furnace circulating water security device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204918838U true CN204918838U (en) | 2015-12-30 |
Family
ID=54967984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520609259.6U Expired - Fee Related CN204918838U (en) | 2015-08-14 | 2015-08-14 | Single crystal growing furnace circulating water security device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204918838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238696A (en) * | 2016-08-26 | 2016-12-21 | 山东祥瑞铜材有限公司 | A kind of Protection control system |
| CN107473553A (en) * | 2017-09-08 | 2017-12-15 | 上海同济普兰德生物质能股份有限公司 | A kind of modularization pyrohydrolysis sludge cooling system |
-
2015
- 2015-08-14 CN CN201520609259.6U patent/CN204918838U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238696A (en) * | 2016-08-26 | 2016-12-21 | 山东祥瑞铜材有限公司 | A kind of Protection control system |
| CN107473553A (en) * | 2017-09-08 | 2017-12-15 | 上海同济普兰德生物质能股份有限公司 | A kind of modularization pyrohydrolysis sludge cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170814 |