CN204270796U - A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking - Google Patents
A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking Download PDFInfo
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- CN204270796U CN204270796U CN201420675672.8U CN201420675672U CN204270796U CN 204270796 U CN204270796 U CN 204270796U CN 201420675672 U CN201420675672 U CN 201420675672U CN 204270796 U CN204270796 U CN 204270796U
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- oil pump
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Abstract
The utility model relates to a kind of for casting smelting equipment protection automatic switchover protection device, especially a kind of automatic switchover protection device preventing transformer, reactor fluid from intaking is related to, 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; The utility model structure uniqueness, the automatic switchover protection device that can prevent transformer, reactor fluid from intaking; the transformer of protective device equipment, the profit cooling system of reactor automatically switch under smelting state, improve the reliability of smelting equipment, fail safe.
Description
Technical field
The utility model relates to a kind of for casting smelting equipment protection automatic switchover protection device, especially relates 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 purpose of this utility model 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 utility model 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 utility model 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: the automatic switchover protection device that the utility model provides 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: the automatic switchover protection device that the utility model provides 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 that the utility model provides realizes the real-time monitoring of smelting equipment oil-water cooler system oil pump operation parameter.
4) automatic switchover protection device two oil pumps that the utility model provides are used alternatingly, and play a protective role to Oil pump electrical machinery.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
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 |
|---|---|---|---|
| CN201420675672.8U CN204270796U (en) | 2014-11-13 | 2014-11-13 | A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675672.8U CN204270796U (en) | 2014-11-13 | 2014-11-13 | A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204270796U true CN204270796U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420675672.8U Active CN204270796U (en) | 2014-11-13 | 2014-11-13 | A kind of automatic switchover protection device preventing transformer, reactor fluid from intaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204270796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332283A (en) * | 2014-11-13 | 2015-02-04 | 宁夏共享铸钢有限公司 | Automatic switching protection device for preventing water from entering oil of transformer and reactor |
-
2014
- 2014-11-13 CN CN201420675672.8U patent/CN204270796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332283A (en) * | 2014-11-13 | 2015-02-04 | 宁夏共享铸钢有限公司 | Automatic switching protection device for preventing water from entering oil of transformer and reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 750001 No. 199 Tongxin Road, Xixia District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: Share cast steel Co., Ltd Address before: 750001 No. 199 Tongxin Road, Xixia District, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: Ningxia Kocel Group Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |