CN201855938U - Rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting - Google Patents
Rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting Download PDFInfo
- Publication number
- CN201855938U CN201855938U CN2010205782125U CN201020578212U CN201855938U CN 201855938 U CN201855938 U CN 201855938U CN 2010205782125 U CN2010205782125 U CN 2010205782125U CN 201020578212 U CN201020578212 U CN 201020578212U CN 201855938 U CN201855938 U CN 201855938U
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- sodium
- casting
- circulating pump
- water
- water circulating
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Abstract
The utility model discloses a rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting. The rear interlocking protection device comprises a main cooling device, a standby cooling device, an electric-contact pressure gauge and a time relay, wherein the electric-contact pressure gauge is arranged on a cooling water circulating pipeline and respectively electrically connected with the main cooling device and the standby cooling device for comparing measured pressure of the cooling water with the set pressure and controlling the operation of the main cooling device, the standby cooling device and a sodium casting machine according to the comparison result; and the time relay is respectively electrically connected with the main cooling device, the standby cooling device and the electric-contact pressure gauge for controlling the main cooling device and the standby cooling device to automatically switch or control the operation or the stoppage of the sodium casting machine in delay time according to the pressure measured by the electric-contact pressure gauge. Through the utilization of the interlocking protection device, sodium interruption or sodium spraying accidents can be prevented, and the continuity and the safety of the sodium casting link can be guaranteed.
Description
Technical field
The utility model relates to the sodium metal production technical field, specifically, relate to a kind of sodium metal to molten condition cool off casting during sodium the anti-breaking sodium of casting sodium and no-cooling-water after interlocking protective device.
Background technology
Sodium metal is widely used in industries such as the refinement, petrochemical industry of medicine, printing and dyeing, precious metal, and high pure sodium also can be used as the heat carrier of atomic pile.At present, mainly adopt the mode of electrolyzing fused sodium chloride to produce sodium metal, it is last finished product link that the sodium metal of the molten condition of in the sodium metal production electrolysis being come out cools off casting sodium, and the continuity and the security of casting sodium link are the keys that concerns steady production.At present, in casting sodium link, be provided with a jacket water recycle unit, cooling water circulated in pipeline, to the high-temperature metal sodium of the molten condition casting sodium that cools by the Motor Drive circulating pump.But the defective that prior art exists is: owing to only be provided with a jacket water recycle unit, when this cooling water recycle unit breaks down damage, casting sodium machine is owing to can not get well cooling, cause the spray sodium accident of high-temperature fusion sodium easily, perhaps the production that stops to cast the sodium machine owing to the cooling water recycle unit that needs repairing causes disconnected sodium accident, and these all have a strong impact on the continuity and the security of production.
The utility model content
Technical problem to be solved in the utility model is: interlocking protective device behind anti-breaking sodium of a kind of casting sodium and the no-cooling-water is provided, to guarantee the continuity and the security of casting sodium link, prevents disconnected sodium or spray sodium accident.
For solving the problems of the technologies described above, the technical solution of the utility model is: interlocking protective device behind casting anti-breaking sodium of sodium and the no-cooling-water, comprise first motor that is used to drive first water circulating pump, be provided with first main circuit and first control circuit between described first water circulating pump and first motor; Also comprise second motor that is used to drive second water circulating pump, be provided with second main circuit and second control circuit between described second water circulating pump and second motor; Electro connecting pressure gauge, described electro connecting pressure gauge is arranged on the cooling water circulation line, and be electrically connected respectively with described first control circuit and second control circuit, the cooling water pressure that is used for recording is compared with the pressure of setting, and controls the operation of described first water circulating pump or second water circulating pump and casting sodium machine according to comparative result; The time relay, the described time relay is electrically connected respectively with described first control circuit, second control circuit and electro connecting pressure gauge, is used for controlling the operation that described first water circulating pump and second water circulating pump automatically switch or control described casting sodium machine according to the pressure that described electro connecting pressure gauge records in delay time.
As optimized technical scheme, the delay time of the described time relay is 4S.
As optimized technical scheme, described first main circuit and first control circuit are formed by the first electrothermal relay FR ', the first contactor KM ' and first low-voltage circuit breaker QF ' electrical connection.
As optimized technical scheme, described second main circuit and second control circuit are electrically connected by the second electrothermal relay FR, the second contactor KM and the second low-voltage circuit breaker QF and form.
Owing to adopted technique scheme, the beneficial effects of the utility model are: interlocking protective device of the present utility model is in casting sodium link, under the normal condition, by main cooling device promptly first Motor Drive, first water circulating pump cooling water is circulated in pipeline, to the high-temperature metal sodium of the molten condition casting sodium that cools; When this main cooling device breaks down damage, be arranged on when recirculated cooling water pressure is lower than the electro connecting pressure gauge preset lower limit in the system that the electro connecting pressure gauge on the cooling water circulation line records, control first motor and first water circulating pump quits work by first control circuit, control i.e. second motor and the second water circulating pump work of standby cooling device by second control circuit simultaneously, finish the automatic switchover between main cooling device and the standby cooling device, guaranteed carrying out continuously of production, prevent to cast the sodium machine and cause spray sodium accident owing to can not get well cooling, the production that perhaps stops to cast the sodium machine owing to needing repairing causes the sodium accident of breaking.Owing to be provided with the time relay, the delay time of the described time relay is 4S, and casting sodium machine to allow to stop the time of recirculated cooling water be 5S, if the systemic circulation water pressure that electro connecting pressure gauge records in the fruit 4S is higher than its lower limit alarm point, then cast the sodium machine and continue operate as normal, prevent to cause disconnected sodium accident because of shutdown; If the systemic circulation water pressure that electro connecting pressure gauge records in the fruit 4S still is lower than setting pressure, then cast sodium machine dead electricity and quit work, prevent that high-temperature fusion sodium from causing spray sodium accident because of no-cooling-water.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the theory diagram of the utility model embodiment;
Fig. 2 is the electrical schematic diagram of the utility model embodiment.
The specific embodiment
Shown in Fig. 1, Fig. 2 were common, interlocking protective device behind casting anti-breaking sodium of sodium and the no-cooling-water comprised first motor that is used to drive first water circulating pump, is provided with first main circuit and first control circuit between described first water circulating pump and first motor; Also comprise second motor that is used to drive second water circulating pump, be provided with second main circuit and second control circuit between described second water circulating pump and second motor; Electro connecting pressure gauge, described electro connecting pressure gauge is arranged on the cooling water circulation line, and be electrically connected respectively with described first control circuit and second control circuit, the cooling water pressure that is used for recording is compared with the pressure of setting, and controls the operation of described first water circulating pump or second water circulating pump and casting sodium machine according to comparative result; The time relay, the described time relay is electrically connected respectively with described first control circuit, second control circuit and electro connecting pressure gauge, is used for controlling the operation that described first water circulating pump and second water circulating pump automatically switch or control described casting sodium machine according to the pressure that described electro connecting pressure gauge records in delay time.
Wherein, the delay time of the described time relay is 4S.
Wherein, described first main circuit and first control circuit are formed by the first electrothermal relay FR ', the first contactor KM ' and first low-voltage circuit breaker QF ' electrical connection.
Wherein, described second main circuit and second control circuit are electrically connected by the second electrothermal relay FR, the second contactor KM and the second low-voltage circuit breaker QF and form.
The utility model operation principle: as shown in Figure 2
1, will join unlocking knob SA and get to unlocked position, SA disconnects, control power switch QM closes, press the first water circulating pump start button 1SB2, the sucking coil energising of the first contactor KM ', three couple of the first contactor KM ' often opens the main contact adhesive, and first motor that is used to drive first water circulating pump is switched on power supply, directly starts; Simultaneously, contactor in parallel with start button 1SB2 in first control circuit is assisted normally opened contact KM ' closure, makes first water circulating pump self-locking operation.Electro connecting pressure gauge lower limit alarm point disconnects simultaneously, and PT disconnects, and does not report to the police, and the 1KA1 closure will join unlocking knob SA and get to the interlocking position operation, open casting sodium machine.
2, after first water circulating pump is opened, be connected on the normally-closed contact KM ' disconnection in the second contactor KM sucking coil circuit of second water circulating pump, form interlocking with second water circulating pump, prevent that first water circulating pump and second water circulating pump from opening simultaneously and cause the systemic circulation water pressure too high.
3, in casting sodium machine running, when first water circulating pump breaks down, when the systemic circulation water pressure is lower than the electro connecting pressure gauge preset lower limit, the PT closure, auxiliary reclay coil 2KA gets, while auxiliary reclay normally opened contact 2KA1 closure, time relay coil KT gets electric (the KT delay time is set at 4S, and it is 5S that casting sodium machine allows to stop the recirculated water time), and normally-closed contact 2KA3 disconnects, first water circulating pump quits work, normally-closed contact KM ' closure.Meanwhile 2KA2 gets, the second contactor KM adhesive of second water circulating pump, the second water circulating pump work, finish the automatic switchover between main cooling device and the standby cooling device, guaranteed carrying out continuously of production, prevent to cast the sodium machine and cause spray sodium accident owing to can not get well cooling, the production that perhaps stops to cast the sodium machine owing to needing repairing causes the sodium accident of breaking.If the systemic circulation water pressure is higher than the lower limit alarm point of electro connecting pressure gauge in the fruit 4S, then PT disconnects, auxiliary reclay coil 2KA dead electricity, auxiliary reclay normally opened contact 2KA1 disconnects, while time relay coil KT dead electricity, and timing closing contact KT1 can be closed, auxiliary reclay coil 1KA must not, normally-closed contact 1KA1 closure, casting sodium machine operate as normal, the sodium accident that can prevent to break is freeed.If the systemic circulation water pressure still is lower than setting pressure in the fruit 4S, PT closure then, auxiliary reclay coil 2KA gets, auxiliary reclay normally opened contact 2KA1 gets electric, and while time relay coil KT gets electric, then time relay normally opened contact KT1 closure, auxiliary reclay coil 1KA gets, normally-closed contact 1KA1 disconnects, and casting sodium machine dead electricity quits work, and prevents that high-temperature fusion sodium from causing spray sodium accident because of no-cooling-water.
Claims (4)
1. interlocking protective device behind casting anti-breaking sodium of sodium and the no-cooling-water comprises
Be used to drive first motor of first water circulating pump, be provided with first main circuit and first control circuit between described first water circulating pump and first motor;
It is characterized in that: also comprise
Be used to drive second motor of second water circulating pump, be provided with second main circuit and second control circuit between described second water circulating pump and second motor;
Electro connecting pressure gauge, described electro connecting pressure gauge is arranged on the cooling water circulation line, and be electrically connected respectively with described first control circuit and second control circuit, the cooling water pressure that is used for recording is compared with the pressure of setting, and controls the operation of described first water circulating pump or second water circulating pump and casting sodium machine according to comparative result;
The time relay, the described time relay is electrically connected respectively with described first control circuit, second control circuit and electro connecting pressure gauge, is used for controlling the operation that described first water circulating pump and second water circulating pump automatically switch or control described casting sodium machine according to the pressure that described electro connecting pressure gauge records in delay time.
2. interlocking protective device behind anti-breaking sodium of casting sodium as claimed in claim 1 and the no-cooling-water is characterized in that: the delay time of the described time relay is 4S.
3. interlocking protective device behind anti-breaking sodium of casting sodium as claimed in claim 1 and the no-cooling-water is characterized in that: described first main circuit and first control circuit are formed by the first electrothermal relay FR ', the first contactor KM ' and first low-voltage circuit breaker QF ' electrical connection.
4. interlocking protective device behind anti-breaking sodium of casting sodium as claimed in claim 1 and the no-cooling-water is characterized in that: described second main circuit and second control circuit are electrically connected by the second electrothermal relay FR, the second contactor KM and the second low-voltage circuit breaker QF and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205782125U CN201855938U (en) | 2010-10-14 | 2010-10-14 | Rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205782125U CN201855938U (en) | 2010-10-14 | 2010-10-14 | Rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201855938U true CN201855938U (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205782125U Expired - Fee Related CN201855938U (en) | 2010-10-14 | 2010-10-14 | Rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting |
Country Status (1)
| Country | Link |
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| CN (1) | CN201855938U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966522A (en) * | 2011-09-01 | 2013-03-13 | 昆山溢阳潮热处理有限公司 | Automatic control device of circulation cooling water pump of thermal treatment plant |
| CN103354347A (en) * | 2013-06-19 | 2013-10-16 | 国家电网公司 | Motor-dual-protection automatic control device |
| CN103354346A (en) * | 2013-06-19 | 2013-10-16 | 国家电网公司 | Motor dual protection belt alarm automation control device |
| CN104777745A (en) * | 2014-01-14 | 2015-07-15 | 北大方正集团有限公司 | Redundancy control circuit and redundancy control system |
| CN105108111A (en) * | 2015-08-27 | 2015-12-02 | 内蒙古兰太实业股份有限公司 | Novel sodium casting molding equipment |
| CN109638781A (en) * | 2018-11-07 | 2019-04-16 | 陕西南梁矿业有限公司 | A kind of water-cooled motor means for protecting power device when water-break and method |
-
2010
- 2010-10-14 CN CN2010205782125U patent/CN201855938U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966522A (en) * | 2011-09-01 | 2013-03-13 | 昆山溢阳潮热处理有限公司 | Automatic control device of circulation cooling water pump of thermal treatment plant |
| CN103354347A (en) * | 2013-06-19 | 2013-10-16 | 国家电网公司 | Motor-dual-protection automatic control device |
| CN103354346A (en) * | 2013-06-19 | 2013-10-16 | 国家电网公司 | Motor dual protection belt alarm automation control device |
| CN104777745A (en) * | 2014-01-14 | 2015-07-15 | 北大方正集团有限公司 | Redundancy control circuit and redundancy control system |
| CN105108111A (en) * | 2015-08-27 | 2015-12-02 | 内蒙古兰太实业股份有限公司 | Novel sodium casting molding equipment |
| CN105108111B (en) * | 2015-08-27 | 2017-05-17 | 内蒙古兰太实业股份有限公司 | Sodium casting molding equipment |
| CN109638781A (en) * | 2018-11-07 | 2019-04-16 | 陕西南梁矿业有限公司 | A kind of water-cooled motor means for protecting power device when water-break and method |
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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 |
Granted publication date: 20110608 Termination date: 20151014 |
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| EXPY | Termination of patent right or utility model |