CN104405627A - Electric generator cooling water pump control cabinet - Google Patents
Electric generator cooling water pump control cabinet Download PDFInfo
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- CN104405627A CN104405627A CN201410592034.4A CN201410592034A CN104405627A CN 104405627 A CN104405627 A CN 104405627A CN 201410592034 A CN201410592034 A CN 201410592034A CN 104405627 A CN104405627 A CN 104405627A
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Abstract
An electric generator cooling water pump control cabinet is characterized in that a three-dimensional control mode switch is arranged between a cooling water pump and a control cabinet; three modes of in-place, maintenance and remote control of the control cabinet can be selected by the three-dimensional control mode switch; any control mode can be manually selected through the control mode switch; only one mode among the three modes can be selected; the specific operation is executed through an operator according to production working conditions; the priority of the in-place control mode is highest. The electric generator cooling water pump control cabinet has the advantages of providing guarantee for safe and reliable operation of a cooling, heating and power combined supply system and satisfying unattended occasions by alarm and automatic switching when a main pump and a spare pump break down under manual and remote control modes; having multiple protection functions of short-circuit protection, overload protection and water supply equipment fault protection; enabling a control loop to be formed by conventional electrical appliances, and being high in reliability, low in cost and convenient to use and maintain.
Description
Technical field
The present invention relates to the technological improvement of each parts of cluster engine, particularly a kind of generator cooling-water pump control cabinet.
Background technique
Along with the development of human being's production and life, energy supply growing tension, with rock gas, biogas for main fuel, propelling gas turbine engine or internal-combustion engine generating, recycle its generating waste-heat has become current distributed energy a kind of principal mode to the cooling heating and power generation system of user's cooling or heat supply, cold-hot electirc linking project has been put into country " 12 " Energy efficiency in planning emphasis investment field.
The generator of current cooling heating and power generation system arranges HT high-temperature cooling water and LT low temperature refrigeration water system, high temperature and low-temperature cooling system respectively configure two cooling waterpumps (the using and the reserved), cooling system is arranged on the spot, maintenance, far control three kinds of control modes, each system needs configuration 1 HT and 1 LT cooling waterpump control cabinet, by start and stop and the speed regulating control of water pump, control the flow of the cold water entered in heat exchanger, thus reach the return water temperature controlling generator cooling circulating water, ensure the normal work of generator.
Existing cooling waterpump control cabinet under control state far away, can only automatically switch to another water pump after a fault of water pump; But when system debug initial stage or remote power feeding system equipment failure can not link, all need water pump to be arranged on control mode on the spot, and now water pump can not realize after breaking down automatically switching.Current control cabinet, do not arrange hydraulic pressure protection, the situation of the pump that fans the air happens occasionally,
For the problems referred to above, provide a kind of novel control cabinet, the automatic switchover realizing active and standby water pump under any state is the problem that prior art needs to solve.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of generator cooling-water pump control cabinet, realizes the object that active and standby water pump automatically switches under any state.
For achieving the above object, technological scheme of the present invention is, a kind of generator cooling-water pump control cabinet, it is characterized in that: between described cooling waterpump and control cabinet, be provided with Three dimensions control mode switch, to control cabinet on the spot, maintenance, control Three models far away select, can manually select arbitrary control mode by control mode switch, Three models can only select one, specific operation are performed according to production status by operator, and control mode priority is the highest on the spot.Control mode is on the spot selected on the one hand for the solo test run at cooling heating and power generation system debugging initial stage, to be used for linked system on the other hand and manually need to drive because part subsidiary engine equipment breaks down and not affect production; This control cabinet be compared with the advantage of conventional control cabinet: when select on the spot control mode time, if a pump breaks down, still can automatically switch to another pump, without the need to manual switchover; Pump still has hydraulic pressure protection simultaneously, and thus comparatively conventional control cabinet is higher for the safety reliability of system; Maintenance model is car-parking model, and when being positioned at maintenance model, water pump meeting automatic stopping, all can not start two water pumps with control far away on the spot, for ensureing attendant's personal safety when overhauling; When being positioned at control pattern far away, local operation is invalid, water pump forward to monitor system operation or with other equipment linkages, realize the automatic operating of triple combined supply system.Control cabinet be provided with one main two standby, two main one for throw over switch, for the selection primary, for subsequent use of two cooling waterpumps, when throw over switch select one main two for time, No. 1 pump is main pump, during system cloud gray model, drive No. 1 pump, automatically switch to No. two pumps when No. 1 pump breaks down, automatically switch back to No. 1 pump when No. 1 failure of pump is removed by No. 2 pumps, vice versa.When two pumps all breaks down, system can be reported to the police, and there will not be the frequent switching of two pumps control contactor to cause the damage of contactor.
Four wire three phase power supply is by the 1-2QF circuit breaker access in control cabinet; two circuit breakers carry out quick-break and overcurrent protection to 1, No. 2 pump respectively simultaneously; when arbitrary fault of water pump; pump motor is cut off in the tripping operation of this breaker protection; off state is become from closed after the auxiliary contact that circuit breaker configures simultaneously detects circuit breaker trip; carry out warning instruction by 1HY1 or 1HY2, automatically switch to another pump work by the action of 1KA4 or 1KA5 relay.
The control loop of cooling waterpump and control cabinet is provided with power-off delay relay, for escaping the abnormal operating mode of outlet pressure when pumping up dynamic.
A kind of generator cooling-water pump control cabinet, owing to adopting above-mentioned structure, the invention has the advantages that: 1, during manual and control pattern far away, all can report to the police and automatically switch during active and standby failure of pump, for the safe and reliable operation of cooling heating and power generation system provides guarantee, unattended occasion can be met.2, there is the multiple protection functions of short-circuit protection, overload protection and water supply equipment error protection.3, control loop adopts conventional electrical appliance composition, and control cabinet has that reliability is high, cost is low, working service feature easily.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation;
Fig. 1 is the structural representation of a kind of generator cooling-water pump of the present invention control cabinet;
Fig. 2 is the elementary diagram of a kind of generator cooling-water pump of the present invention control cabinet;
Fig. 3 is the elementary diagram of the active and standby cooling waterpump of a kind of generator cooling-water of the present invention pump control cabinet.
Embodiment
This control cabinet connection principle is simple, especially do not rely on PLC during manual mode and the automatic switchover of failure of pump and omnibearing protection warning function can be carried out, simple to operate being convenient to is safeguarded, control apparatus is customary components, purchase cost is low, with short production cycle, control cabinet production period just can unloaded be debugged, can be used as a kind of approved product to produce and promote, there are market prospects widely, after control cabinet enters scene, only power supply need be accessed, motor cable, hydraulic pressure protective switch, can put into operation, shorten the debugging cycle of equipment, equipment operating is simple and convenient, main working process is as follows:
(1) being protected by hydraulic pressure time delay relay to adjust is 50 seconds (can adjust according to runnability);
(2) as required active and standby throw over switch is chosen as one main two standby or two main one standby;
(3) observe the instruction of control cabinet voltage normally, by 1#, 2# pump main disconnector to close a floodgate, control breaker closing;
(4) instruction of control cabinet 1#, 2# pump fault-free is observed;
(5) control mode switch is forwarded on the spot by maintenance;
(6) press and open on the spot, stop button, open, stop cooling system;
(7) if proceed to coordinated signals, only mode switch need be forwarded to and far control.
(8) no matter be positioned on the spot or control pattern far away time, after any pump breaks down, the malfunction alarm tutorial light action of this pump, can automatically switch to another pump work simultaneously.
(9) when producing parking, can mode switch be forwarded to maintenance model, trouble shooting pump, after equipment failure is got rid of, can again put into operation.
Concrete as shown in Figure 1, the present invention arrange one on the spot, maintenance, control far away three control mode switches, control for Non-follow control, safety inspection and system interlink.No matter control mode switch is positioned on the spot or controlled position far away; No matter main pump fault or standby failure of pump all can automatically switch to normal pump work by fault pump.
Active and standby pump main disconnector of powering all configures auxiliary contact, for detecting circuit breaker short circuit tripping operation or the scram that causes of point circuit breaker by mistake; Active and standby pump motor all configures thermal overload relay for transshipping the tripping operation caused in testing pump operation; Active and standby pump discharge all configures pressure switch for detecting the water supply pressure deficiency because water pump, water supply line or water supply equipment fault cause, and above-mentioned three kinds of phenomena of the failure all can be reported to the police and be realized the automatic switchover of pump.The control loop of each pump arranges a power-off delay relay, and for escaping the abnormal operating mode of outlet pressure when pumping up dynamic, delay time 0-60 is adjustable for second.
When a failure of pump is switched to another pump, as now this pump also fault, control not return to switch back to fault pump again, two fault pumps can be avoided like this to switch the control contactor caused back and forth and damage because of frequent movement.Control on the spot and far and share start and stop relay, after stopping, Pressure testing fault automatically resets, and prepare for starting shooting next time, hot stall and quick-break fault need manual reset.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that technical solution of the present invention is carried out, or directly apply to other occasion, all within protection scope of the present invention without improving.
Claims (3)
1. a generator cooling-water pump control cabinet, it is characterized in that: between described cooling waterpump and control cabinet, be provided with Three dimensions control mode switch, to control cabinet on the spot, maintenance, control Three models far away select, arbitrary control mode can be manually selected by control mode switch, Three models can only select one, and specific operation are performed according to production status by operator; Control mode is on the spot selected on the one hand for the solo test run at cooling heating and power generation system debugging initial stage, to be used for linked system on the other hand and manually need to drive because part subsidiary engine equipment breaks down and not affect production; This control cabinet select on the spot control mode time, if a pump breaks down, automatically switch to another pump;
Described control cabinet be provided with one main two standby, two main one for throw over switch, for the selection primary, for subsequent use of two cooling waterpumps, when throw over switch select one main two for time, No. 1 pump is main pump, during system cloud gray model, drive No. 1 pump, automatically switch to No. two pumps when No. 1 pump breaks down, automatically switch back to No. 1 pump when No. 1 failure of pump is removed by No. 2 pumps; When two pumps all breaks down, system alarm.
2. a kind of generator cooling-water pump control cabinet according to claim 1, is characterized in that: the confession electrical circuit breakers of described cooling waterpump all arranges auxiliary contact; Four wire three phase power supply is by the 1-2QF circuit breaker access in control cabinet; two circuit breakers carry out quick-break and overcurrent protection to 1, No. 2 pump respectively simultaneously; when arbitrary fault of water pump; pump motor is cut off in the tripping operation of this breaker protection; off state is become from closed after the auxiliary contact that circuit breaker configures simultaneously detects circuit breaker trip; carry out warning instruction by 1HY1 or 1HY2, automatically switch to another pump work by the action of 1KA4 or 1KA5 relay.
3. a kind of generator cooling-water pump control cabinet according to claim 1, is characterized in that: described cooling waterpump and the control loop of control cabinet are provided with power-off delay relay, for escaping the abnormal operating mode of outlet pressure when pumping up dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592034.4A CN104405627B (en) | 2014-10-29 | 2014-10-29 | Electric generator cooling water pump control cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410592034.4A CN104405627B (en) | 2014-10-29 | 2014-10-29 | Electric generator cooling water pump control cabinet |
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| CN104405627A true CN104405627A (en) | 2015-03-11 |
| CN104405627B CN104405627B (en) | 2017-04-19 |
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| CN201410592034.4A Active CN104405627B (en) | 2014-10-29 | 2014-10-29 | Electric generator cooling water pump control cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901557A (en) * | 2015-05-08 | 2015-09-09 | 株洲南车时代电气股份有限公司 | Intelligent converter cooling system and intelligent cooling control method |
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| SU1599959A1 (en) * | 1988-05-12 | 1990-10-15 | Ворошиловградский Проектно-Технологический Институт Машиностроения Им.Хху1 Съезда Кпсс | Device for controlling reversible electric motor |
| DE4237899A1 (en) * | 1991-11-12 | 1993-05-13 | Peter Poeck | Local controller for electrical drive motors - has multi-phase supply with phases coupled to switching units and safety circuit to protect motor |
| CN202266819U (en) * | 2011-10-21 | 2012-06-06 | 济南重工股份有限公司 | Circuit for automatic switching spare pump for mill lubricating oil station |
| CN102635542A (en) * | 2012-04-13 | 2012-08-15 | 中冶南方工程技术有限公司 | Undisturbed switching water pump control system |
| CN203084498U (en) * | 2013-02-25 | 2013-07-24 | 江苏三恒科技股份有限公司 | Multifunctional local control system |
| CN203151410U (en) * | 2013-04-02 | 2013-08-21 | 孙军 | Automatic switching controller for realizing mutual spare of two electric motors |
| CN203308729U (en) * | 2013-06-14 | 2013-11-27 | 佛山市小鹰电气有限公司 | Control box used for double submersible pumps |
| CN204312302U (en) * | 2014-10-29 | 2015-05-06 | 安徽鑫龙电器股份有限公司 | A kind of control cabinet for generator cooling-water pump |
-
2014
- 2014-10-29 CN CN201410592034.4A patent/CN104405627B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1599959A1 (en) * | 1988-05-12 | 1990-10-15 | Ворошиловградский Проектно-Технологический Институт Машиностроения Им.Хху1 Съезда Кпсс | Device for controlling reversible electric motor |
| DE4237899A1 (en) * | 1991-11-12 | 1993-05-13 | Peter Poeck | Local controller for electrical drive motors - has multi-phase supply with phases coupled to switching units and safety circuit to protect motor |
| CN202266819U (en) * | 2011-10-21 | 2012-06-06 | 济南重工股份有限公司 | Circuit for automatic switching spare pump for mill lubricating oil station |
| CN102635542A (en) * | 2012-04-13 | 2012-08-15 | 中冶南方工程技术有限公司 | Undisturbed switching water pump control system |
| CN203084498U (en) * | 2013-02-25 | 2013-07-24 | 江苏三恒科技股份有限公司 | Multifunctional local control system |
| CN203151410U (en) * | 2013-04-02 | 2013-08-21 | 孙军 | Automatic switching controller for realizing mutual spare of two electric motors |
| CN203308729U (en) * | 2013-06-14 | 2013-11-27 | 佛山市小鹰电气有限公司 | Control box used for double submersible pumps |
| CN204312302U (en) * | 2014-10-29 | 2015-05-06 | 安徽鑫龙电器股份有限公司 | A kind of control cabinet for generator cooling-water pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901557A (en) * | 2015-05-08 | 2015-09-09 | 株洲南车时代电气股份有限公司 | Intelligent converter cooling system and intelligent cooling control method |
| CN104901557B (en) * | 2015-05-08 | 2017-09-22 | 株洲南车时代电气股份有限公司 | A kind of intelligent cooling system for converter and intelligent cooling control method |
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| CN104405627B (en) | 2017-04-19 |
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Address after: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District No. 118 North Park electrical components Applicant after: ANHUI ZHONGDIAN XINGFA AND XINLONG TECHNOLOGY CO., LTD. Address before: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District No. 118 North Park electrical components Applicant before: Xinlong Electric-Appliance Co., Ltd., Anhui |
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