CN104332283A - Automatic switching protection device for preventing water from entering oil of transformer and reactor - Google Patents
Automatic switching protection device for preventing water from entering oil of transformer and reactor Download PDFInfo
- Publication number
- CN104332283A CN104332283A CN201410638209.0A CN201410638209A CN104332283A CN 104332283 A CN104332283 A CN 104332283A CN 201410638209 A CN201410638209 A CN 201410638209A CN 104332283 A CN104332283 A CN 104332283A
- Authority
- CN
- China
- Prior art keywords
- oil
- transformer
- reactor
- oil pump
- protection device
- 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.)
- Pending
Links
Landscapes
- Transformer Cooling (AREA)
Abstract
The invention relates to an automatic switching protection device for protecting casting and melting equipment, in particular to an automatic switching protection device for preventing water from entering the oil of a transformer and a reactor. The device comprises the transformer, the reactor, an oil-water cooler, a remote terminal and a thermal relay protection power control cabinet, and is characterized in that an oil pump unit is connected in parallel between each of the transformer and the reactor and an oil outlet pipe of the oil-water cooler; a water pump and a drain pipe are connected to the two ends of the oil-water cooler respectively. The automatic switching protection device capable of preventing water from entering the oil of the transformer and the reactor is unique in structure, an oil-water cooling system of the transformer and the reactor of electrical equipment is protected to be automatically switched in a smelting state, and the reliability and the safety of smelting equipment are improved.
Description
Technical field
The present invention relates to a kind of for casting smelting equipment protection automatic switchover protection device, especially relate to a kind of automatic switchover protection device preventing transformer, reactor fluid from intaking.
Background technology
When molten steel is smelted, transformer, the reactor Inside coil of arc furnace, refining furnace produce high temperature, utilize recycle oil to cool, and the fluid of oil circulating system utilizes recirculated water to take away heat to cool, thus ensure that electrical equipment Inside coil temperature remains in the safe range of regulation.
The heat that the oil pipe salband of recirculated water to inner chamber that existing profit cooling system provides by water pump goes rancid, general use an oil pump, also an oil pump for subsequent use.If the oil pump in using breaks down quit work, need artificial inspection to open emergency bearing oil pump.Period needs about 3 minutes consuming time, and now water pump is still in work, once probably water is revealed in internal oil pipe generation corrosion, will to enter electrical transformers by oil pipe inner and serious accident occurs, cause stopping production.
Also do not overcome the device of above-mentioned defect at present.
Summary of the invention
The object of the invention is the defect overcoming prior art; the automatic switchover protection device that a kind of structure is unique, can prevent transformer, reactor fluid from intaking is provided; the transformer of protective device equipment, the profit cooling system of reactor automatically switch under smelting state, the automatic switchover protection device that the raising reliability of smelting equipment, a kind of of fail safe prevent transformer, reactor fluid from intaking.
The present invention realizes in the following way:
A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking, it comprises transformer, reactor, oil-water cooler, remote terminal and hot relay protecting power control cubicle, it is characterized in that: between the flowline of above-mentioned transformer, reactor and oil-water cooler, be parallel with oil pump group, oil-water cooler two ends also connect water pump and drainage pipe respectively;
Described oil pump group is formed in parallel by plural oil pump, a unidirectional valve is respectively installed in the exit of each oil pump, unidirectional valve is connected to described oil-water cooler one end by oil pipe, the oil-water cooler other end is connected with described transformer, reactor by oil pipe, and forms closed loop and get back to oil pump group;
Described hot relay protecting power control cubicle is connected with described oil pump group, and accesses described remote terminal;
Described oil pump group is formed in parallel by the oil pump of two.
The present invention has following effect:
1) unique, the automatic switchover protection device that can prevent transformer, reactor fluid from intaking of structure, the transformer of protective device equipment, the profit cooling system of reactor automatically switch under smelting state: automatic switchover protection device provided by the invention it comprise transformer, reactor, oil-water cooler, remote terminal and hot relay protecting power control cubicle, it is characterized in that: between the flowline of above-mentioned transformer, reactor and oil-water cooler, be parallel with oil pump group, oil-water cooler two ends also connect water pump and drainage pipe respectively; Described oil pump group is formed in parallel by plural oil pump, a unidirectional valve is respectively installed in the exit of each oil pump, unidirectional valve is connected to described oil-water cooler one end by oil pipe, the oil-water cooler other end is connected with described transformer, reactor by oil pipe, and forms closed loop and get back to oil pump group; Described hot relay protecting power control cubicle is connected with described oil pump group, and accesses described remote terminal.
2) security reliability when smelting is improved: automatic switchover protection device provided by the invention make use of hot relay protector and unidirectional valve control technology and realizes oil pump and switch instantaneously; switching time < 30s; ensure that oil pump circulation is in normal operating conditions all the time; pipeline keeps normal pressure water to enter oil pipe, improves security reliability when smelting.
3) automatic switchover protection device provided by the invention realizes the real-time monitoring of smelting equipment oil-water cooler system oil pump operation parameter.
4) automatic switchover protection device provided by the invention two oil pumps are used alternatingly, and play a protective role to Oil pump electrical machinery.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking; it comprises transformer, reactor 7, oil-water cooler 6, remote terminal 11 and hot relay protecting power control cubicle 9; it is characterized in that: between the flowline of above-mentioned transformer, reactor 7 and oil-water cooler 6, be parallel with oil pump group 1, oil-water cooler 6 two ends also connect water pump 9 and drainage pipe 10 respectively.
Described oil pump group 1 is formed in parallel by plural oil pump, a unidirectional valve is respectively installed in the exit of each oil pump, unidirectional valve is connected to described oil-water cooler 6 one end by oil pipe 5, oil-water cooler 6 other end is connected with described transformer, reactor 7 by oil pipe, and forms closed loop and get back to oil pump group 1.
Described hot relay protecting power control cubicle 9 is connected with described oil pump group 1, and accesses described remote terminal 11.
Described oil pump group 1 is formed in parallel by the oil pump of two.
As shown in Figure 1: unidirectional valve 3,4 is in closed condition, when starting to smelt, open oil pump 1, open unidirectional valve 3, cold oil is recycled to transformer or reactor by oil pipe, completes the circulation of oil.Open water pump, cooling water cools to recycle oil through oil-water cooler, ensures the temperature range of recycle oil, finally realizes the cooling of recycle oil to transformer or reactor.Now the operational factor of oil pump 1 is monitored by hot relay protecting power control cubicle 9; when the motor temperature of oil pump 1 rises to more than 80 DEG C; hot relay protecting power control cubicle 9 receives signal; oil pump automatically switches; now oil pump 1 cuts out; oil pump 2 brings into operation, and unidirectional valve 4 is opened automatically, and unidirectional valve 3 is closed automatically.
And now the operational factor of oil pump 2 is monitored by hot relay protecting power control cubicle 9; when the motor temperature of oil pump 2 rises to more than 80 DEG C; hot relay protecting power control cubicle 9 receives signal; oil pump automatically switches; now oil pump 2 cuts out; oil pump 1 brings into operation, and unidirectional valve 3 is opened automatically, and unidirectional valve 4 is closed automatically.So, circulate.
System operation situation is monitored by remote terminal 11.
Oil pump 1 runs, and oil pump 2 cuts out.Oil pump 1 breaks down, and changes between Current Zone, and hot relay protecting power control cubicle 9 receives signal automatic switchover oil pump, and now oil pump 1 cuts out, and oil pump 2 brings into operation, and unidirectional valve 4 is opened automatically, and unidirectional valve 3 is closed automatically.Such oil pump is in running status all the time, and namely oil pipe 5 is in normal pressure all the time, ensures that oil circulation is normally carried out.System operation situation is monitored by remote terminal 11.
Claims (4)
1. the automatic switchover protection device preventing transformer, reactor fluid from intaking; it comprises transformer, reactor (7), oil-water cooler (6), remote terminal (11) and hot relay protecting power control cubicle (9); it is characterized in that: between the flowline of above-mentioned transformer, reactor (7) and oil-water cooler (6), be parallel with oil pump group (1), oil-water cooler (6) two ends also connect water pump (9) and drainage pipe (10) respectively.
2. a kind of automatic switchover protection device preventing transformer, reactor fluid from intaking as claimed in claim 1; it is characterized in that: described oil pump group (1) is formed in parallel by plural oil pump; a unidirectional valve is respectively installed in the exit of each oil pump; unidirectional valve is connected to described oil-water cooler (6) one end by oil pipe (5); oil-water cooler (6) other end is connected with described transformer, reactor (7) by oil pipe, and forms closed loop and get back to oil pump group (1).
3. a kind of automatic switchover protection device preventing transformer, reactor fluid from intaking as claimed in claim 1, is characterized in that: described hot relay protecting power control cubicle (9) is connected with described oil pump group (1), and accesses described remote terminal (11).
4. a kind of automatic switchover protection device preventing transformer, reactor fluid from intaking as claimed in claim 1, is characterized in that: described oil pump group (1) is formed in parallel by the oil pump of two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638209.0A CN104332283A (en) | 2014-11-13 | 2014-11-13 | Automatic switching protection device for preventing water from entering oil of transformer and reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638209.0A CN104332283A (en) | 2014-11-13 | 2014-11-13 | Automatic switching protection device for preventing water from entering oil of transformer and reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104332283A true CN104332283A (en) | 2015-02-04 |
Family
ID=52406994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410638209.0A Pending CN104332283A (en) | 2014-11-13 | 2014-11-13 | Automatic switching protection device for preventing water from entering oil of transformer and reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104332283A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924742Y (en) * | 2006-06-14 | 2007-07-18 | 冯宝泉 | Transformer forced-oil-circulation air-cooled intelligent control system |
| CN101882501A (en) * | 2009-05-07 | 2010-11-10 | 高阳 | External cooling device of transformer oil |
| CN102360746A (en) * | 2011-08-19 | 2012-02-22 | 浙江雁泉冷却器有限公司 | Transformer forced oil circulation cooler |
| KR101327409B1 (en) * | 2013-06-17 | 2013-11-08 | (주)에이스전력 | Piezo electric element type water cooling system of power transformer using self-vibrating |
| CN203324749U (en) * | 2013-06-13 | 2013-12-04 | 扬州华鼎电器有限公司 | Voltage transformer air-cooling control system |
| CN103677007A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Oil circulation water-cooling control system for transformer of submerged arc furnace |
| CN204270796U (en) * | 2014-11-13 | 2015-04-15 | 宁夏共享铸钢有限公司 | A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking |
-
2014
- 2014-11-13 CN CN201410638209.0A patent/CN104332283A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924742Y (en) * | 2006-06-14 | 2007-07-18 | 冯宝泉 | Transformer forced-oil-circulation air-cooled intelligent control system |
| CN101882501A (en) * | 2009-05-07 | 2010-11-10 | 高阳 | External cooling device of transformer oil |
| CN102360746A (en) * | 2011-08-19 | 2012-02-22 | 浙江雁泉冷却器有限公司 | Transformer forced oil circulation cooler |
| CN203324749U (en) * | 2013-06-13 | 2013-12-04 | 扬州华鼎电器有限公司 | Voltage transformer air-cooling control system |
| KR101327409B1 (en) * | 2013-06-17 | 2013-11-08 | (주)에이스전력 | Piezo electric element type water cooling system of power transformer using self-vibrating |
| CN103677007A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Oil circulation water-cooling control system for transformer of submerged arc furnace |
| CN204270796U (en) * | 2014-11-13 | 2015-04-15 | 宁夏共享铸钢有限公司 | A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204451996U (en) | A kind of cooling system used for electric vehicle | |
| CN103677008A (en) | Oil circulation air-cooling control system of transformer of submerged arc furnace | |
| CN103677007A (en) | Oil circulation water-cooling control system for transformer of submerged arc furnace | |
| CN101821553B (en) | Safety heat exchanger for combining heat pump with device of public drinking water supply facility | |
| CN204270796U (en) | A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking | |
| Kumar et al. | Application of computer and modern automation system for protection and optimum use of High voltage power transformer | |
| CN102402233B (en) | Self-control device of transformer cooling system | |
| CN205049183U (en) | Sulfur hexafluoride switchgear synthesizes device of on -line monitoring and control | |
| CN107218724B (en) | Heat conduction oil boiler protection device and protection method | |
| CN104332283A (en) | Automatic switching protection device for preventing water from entering oil of transformer and reactor | |
| CN102242705A (en) | Electromagnetic pump cooling system and control method thereof | |
| CN102721155A (en) | Control device and control method for rapidly detecting abnormality of commercial air conditioning water system and protecting commercial air conditioning water system | |
| CN201689762U (en) | Online oil filter device of intelligent on-load tap changer | |
| CN206130515U (en) | Lubricated oil cooling system and electrical equipment thereof | |
| CN215176895U (en) | Induction heating discharging system for high-temperature melting furnace | |
| CN204918838U (en) | Single crystal growing furnace circulating water security device | |
| CN205302580U (en) | Leak water alarming system based on reactive power compensator | |
| CN103589856A (en) | Heating furnace cooling control system and control method | |
| CN204610015U (en) | A kind of monitoring system of cooling water pipeline and a kind of water cooling system | |
| CN110246597B (en) | Cooling system and method for water storage tank of auxiliary water supply system of million-kilowatt nuclear power station | |
| CN204268877U (en) | Mid-frequency melting furnace cooling water system | |
| CN110285077B (en) | Shutdown method and shutdown system for reactor coolant pump for nuclear power station | |
| CN102045903A (en) | Method for protecting induction heating coil by utilizing water flow relay | |
| CN206072143U (en) | A kind of water-cooling structure of magnetic suspension motor auxiliary bearing | |
| CN105674683B (en) | A kind of liquid circulation cooling system and its guard method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |
|
| WD01 | Invention patent application deemed withdrawn after publication |