CN205004982U - Prevent misuse's energy -conserving condensate pump operation control system - Google Patents
Prevent misuse's energy -conserving condensate pump operation control system Download PDFInfo
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- CN205004982U CN205004982U CN201520697289.7U CN201520697289U CN205004982U CN 205004982 U CN205004982 U CN 205004982U CN 201520697289 U CN201520697289 U CN 201520697289U CN 205004982 U CN205004982 U CN 205004982U
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- electromagnetic lock
- condensate pump
- switch
- frequency converter
- control system
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Abstract
The utility model discloses a prevent misuse's energy -conserving condensate pump operation control system, including converter, condensate pump, the converter passes through converter gate out switch K1, K2 and links to each other with condensate pump A and condensate pump B respectively, and the converter passes through power frequency switch QF2 and converter ground connection sword links to each other with the power source bus, condensate pump A, B link to each other with the power source bus through power frequency switch QF1, QF3 and corresponding ground connection sword A, B respectively, condensate pump power frequency cubical switchboard arm -tie grip at ground connection sword A, B is equipped with first electromagnetic lock, auxiliary contact at ground connection sword A, B inserts converter gate out switch K1, K2 combined floodgate return circuit, cubical switchboard grip at converter gate out switch K1, K2 is equipped with the second electromagnetic lock. The utility model provides an operation control system can avoid appearing to close earthing knife -switch with electricity, take the earth connection to close a floodgate and the operation personnel open the emergence of the dangerous condition such as electrified cabinet door going to the wrong way the interval mistiming, makes condensate pump's operation safer, reliable.
Description
Technical field
The utility model relates to power generation industries and auxiliary device technical field, specifically relates to a kind of energy-conservation condensate pump operation control system preventing misoperation.
Background technology
Day by day frequent along with generating set peaking operation, the peak-valley difference of electric power system also strengthens day by day, and condensate pump load variations is accelerated, and not only control precision is poor for traditional mode utilizing control valve to regulate water level, and uneconomical, the water level that can not meet instantly regulates requirement.Carried out the control of frequency control for condensate pump afterwards, can ensure that condensate pump all had constant torque when different rotating speeds, not only regulate and control sensitive, accurate, raise the efficiency, saves energy, and greatly reduce the workload of plant maintenance.The design of choose reasonable Condensate Pump Frequency Conversion Modification and safe and reliable electric blocking logic are most important to condensed system and even whole power plant, the safety of electrical network, stable operation.But time, because the bypass cabinet of normal conditions down-conversion device and power frequency by-pass switch be not or not same place, and lectotype selection has very big difference.
Usually as shown in Figure 1, Condensate Pump Frequency Conversion adopts " one drag two auto by pass " mode to the operational mode of existing condensate pump.An i.e. high voltage converter band two condensations pump operation (one drag two), under operational mode:
(1) converting operation: power frequency supply switch QF1, QF3 disconnect, power supply is successively by QF2-high voltage converter-K1(K2) export condensate pump motor M to; (2) power frequency operation: after high voltage converter is stopped transport, disconnect QF2, K1 (K2) simultaneously and disconnect, condensate pump is by the by-pass switch QF1(QF3 of high voltage converter) power supply.But usually there are following 3 security risks in above-mentioned operational mode:
1) when solidifying pump motor converting operation, K1(K2) switch is at closing position, now QF1 (QF3) switch end opening is charged, as because need of work is by power frequency switch QF1(QF3) when turning maintenance by stand-by heat, there is operations staff and pull out QF1(QF3) after switch, close QF1(QF3 by mistake) earthing situation, can cause charged risk of closing ground cutter;
2) as QF1(QF3) earthing when co-bit, now K1(K2) end opening ground connection, if pump need be coagulated when turning converting operation, closing K1(K2 by mistake) switch, the risk that band ground cutter closes a floodgate can be caused;
3) when solidifying pump operation (converting operation K1 (K2) close a floodgate, power frequency operation time QF1 (QF3 combined floodgate), now frequency converter gate out switch K1(K2) end opening is charged, now there is operations staff and go to the wrong way interval, open and run frequency converter gate out switch K1(K2 corresponding to motor) risk of lower cabinet door.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide one effectively can avoid occurring that charged co-grounding switch, line with ground (grounding switch) close a floodgate and operations staff is going to the wrong way interval mistiming and open the condensate pump operation control system of charged cabinet door equivalent risk.
The technical scheme that the utility model technical solution problem adopts is: a kind of energy-conservation condensate pump operation control system preventing misoperation, comprise frequency converter, condensate pump, described frequency converter is connected with condensate pump B with condensate pump A respectively by frequency converter gate out switch K1, K2, and described frequency converter is connected with power source bus with frequency converter earthing by power frequency supply switch QF2; Described condensate pump A, B are connected with power source bus respectively by power frequency supply switch QF1, QF3 and corresponding earthing A, B; The first electromagnetic lock is provided with at the condensate pump power frequency switch cubicle arm-tie handle place of described earthing A, B; At auxiliary contact access frequency converter gate out switch K1, K2 closing circuit of described earthing A, B, make earthing A, B when co-bit, normally-closed contact K opens, K1 or K2 closing circuit is obstructed, its closing circuit of locking, avoids line with ground to close a floodgate; The second electromagnetic lock is provided with at the switch cubicle handle place of described frequency converter gate out switch K1, K2.
Further, be provided with auxiliary contact KA in the loop of described first electromagnetic lock, described auxiliary contact KA draws from frequency converter gate out switch K1, K2.
Further, be provided with normally closed contact KB in the loop of described second electromagnetic lock, described normally closed contact KB draws from electrification display.
Further, the first described electromagnetic lock and the second electromagnetic lock are respectively equipped with the first electromagnetic lock pin and the second electromagnetic lock pin, and the first described electromagnetic lock pin and the second electromagnetic lock pin all can locked corresponding cabinet doors after its dead electricity.
Further, the first described electromagnetic lock pin and the second electromagnetic lock pin are cylindrical.
Further, described condensate pump power frequency switch cubicle is also provided with the first electromagnetic lock button and the first electromagnetic lock indicator light; The lower cabinet door of described frequency converter gate out switch K1, K2 switch cubicle is also provided with the second electromagnetic lock button and the second electromagnetic lock indicator light.
Further, the operating voltage of described power source bus is 6KV.
In the operation control system of above-mentioned condensate pump, be provided with the first electromagnetic lock at the arm-tie handle place of the condensate pump power frequency switch cubicle of earthing A, B, the first electromagnetic lock pin can block arm-tie handle after its dead electricity.Concrete operation principle is: when frequency converter gate out switch K1, K2 are in co-bit, its auxiliary contact KA opens, loop is obstructed, first electromagnetic lock cannot be opened, first electromagnetic lock pin blocks earthing arm-tie handle, it is made to move, the operation of earthing A, B of locking power frequency supply switch QF1, QF3.When frequency converter gate out switch K1, K2 are in open position, KA closes, connect loop, first electromagnetic lock pin can manually return, decontrol grounding switch arm-tie handle, its handle can be operated arbitrarily, unlocking, now earthing A, B also can breaking-closing operating, avoids the risk occurring charged co-grounding switch.
Frequency converter gate out switch K1, K2 closing circuit is accessed from power frequency supply switch QF1, QF3 earthing travel switch auxiliary contact (normally closed), make earthing when co-bit, normally-closed contact K opens, and frequency converter gate out switch K1, K2 closing circuit is obstructed, its closing circuit of locking; When power frequency supply switch QF1, QF3 earthing is when dividing position, unlocking, frequency converter gate out switch K1, K2 can carry out closing operation, avoid the risk that line with ground (grounding switch) closes a floodgate.
The second electromagnetic lock is installed additional at the handle place of the switch cubicle lower cabinet door of frequency converter gate out switch K1, K2, when the second electromagnetic lock loop is obstructed, the locked cabinet door of the second electromagnetic lock pin; A normally closed contact KB is drawn in electrification display, when the switch cubicle infraoral bit strip electricity of K1, K2, electrification display normally closed contact KB disconnects, loop is obstructed, second electromagnetic lock cannot be opened, the locked cabinet door of second electromagnetic lock pin, makes it open, and avoids operations staff to open charged cabinet door going to the wrong way interval mistiming.
The beneficial effects of the utility model are: compared with prior art, the operation control system of the condensate pump that the utility model provides mainly has some advantage following: (1) arranges the first electromagnetic lock by the arm-tie handle place at earthing A, B, can effectively avoid the risk occurring charged co-grounding switch; (2) by accessing frequency converter gate out switch K1, K2 closing circuit at power frequency supply switch QF1, QF3 earthing travel switch auxiliary contact (normally closed), the risk that line with ground (grounding switch) closes a floodgate can effectively be avoided; (3) install the second electromagnetic lock additional by the handle place of the switch cubicle lower cabinet door at frequency converter gate out switch K1, K2, can effectively avoid operations staff to open charged cabinet door going to the wrong way interval mistiming.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing condensate pump operation control system.
Fig. 2 is the elementary diagram of grounding switch locking frequency conversion switch of the present utility model.
Fig. 3 is the elementary diagram of the first electromagnetic lock of the present utility model.
Fig. 4 is the elementary diagram of the second electromagnetic lock of the present utility model.
Fig. 5 is the structural representation in the utility model under the first electromagnetic lock blocking.
Fig. 6 is the structural representation in the utility model under the first electromagnetic lock unlock state.
Wherein, in Fig. 2, K represents the auxiliary contact drawn from earthing A, B; In Fig. 3, KA represents and draws self frequency-changing's device gate out switch K1, K2 auxiliary contact; In Fig. 4, KB represents the normally closed contact drawn from electrification display; In Fig. 5 and 6,1-earthing wrench jack, 2-arm-tie handle, 3-first electromagnetic lock pin, 4-first electromagnetic lock button, 5-first electromagnetic lock indicator light.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, following embodiment should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model.
As shown in figs. 1 to 6, a kind of energy-conservation condensate pump operation control system preventing misoperation, comprise frequency converter, condensate pump, described frequency converter is connected with condensate pump B with condensate pump A respectively by frequency converter gate out switch K1, K2, and described frequency converter is connected with power source bus with frequency converter earthing by power frequency supply switch QF2; Described condensate pump A, B are connected with power source bus respectively by power frequency supply switch QF1, QF3 and corresponding earthing A, B; The operating voltage of described power source bus is 6KV.The first electromagnetic lock is provided with at condensate pump power frequency switch cubicle arm-tie handle 2 place of described earthing A, B; Be provided with auxiliary contact KA in the loop of described first electromagnetic lock, described auxiliary contact KA draws from frequency converter gate out switch K1, K2.At auxiliary contact access frequency converter gate out switch K1, K2 closing circuit of described earthing A, B, make earthing A, B when co-bit, normally-closed contact K opens, K1 or K2 closing circuit is obstructed, its closing circuit of locking, avoids line with ground to close a floodgate; The second electromagnetic lock is provided with at the switch cubicle handle place of described frequency converter gate out switch K1, K2.Be provided with normally closed contact KB in the loop of described second electromagnetic lock, described normally closed contact KB draws from electrification display.
The first described electromagnetic lock and the second electromagnetic lock are respectively equipped with the first electromagnetic lock pin 3 and the second electromagnetic lock pin, and the first described electromagnetic lock pin 3 and the second electromagnetic lock pin all can locked corresponding cabinet doors after its dead electricity.The first described electromagnetic lock pin 3 and the second electromagnetic lock pin are cylindrical.Described condensate pump power frequency switch cubicle is also provided with earthing wrench jack 1, first electromagnetic lock button 4 and the first electromagnetic lock indicator light 5; The lower cabinet door of described frequency converter gate out switch K1, K2 switch cubicle is also provided with the second electromagnetic lock button and the second electromagnetic lock indicator light.
In the operation control system of above-mentioned condensate pump, be provided with the first electromagnetic lock at arm-tie handle 2 place of the condensate pump power frequency switch cubicle of earthing A, B, the first electromagnetic lock pin 3 can block arm-tie handle 2 after its dead electricity.Concrete operation principle is: when frequency converter gate out switch K1, K2 are in co-bit, its auxiliary contact KA opens, loop is obstructed, first electromagnetic lock cannot be opened, first electromagnetic lock pin 3 blocks earthing arm-tie handle 2, it is made to move, the operation of earthing A, B of locking power frequency supply switch QF1, QF3.When frequency converter gate out switch K1, K2 are in open position, KA closes, connect loop, first electromagnetic lock pin 3 can manually return, decontrol grounding switch arm-tie handle 2, its handle can be operated arbitrarily, unlocking, now earthing A, B also can breaking-closing operating, avoids the risk occurring charged co-grounding switch.
Frequency converter gate out switch K1, K2 closing circuit is accessed from power frequency supply switch QF1, QF3 earthing travel switch auxiliary contact (normally closed), make earthing when co-bit, normally-closed contact K opens, and frequency converter gate out switch K1, K2 closing circuit is obstructed, its closing circuit of locking; When power frequency supply switch QF1, QF3 earthing is when dividing position, unlocking, frequency converter gate out switch K1, K2 can carry out closing operation, avoid the risk that line with ground (grounding switch) closes a floodgate.
The second electromagnetic lock is installed additional at the handle place of the switch cubicle lower cabinet door of frequency converter gate out switch K1, K2, when the second electromagnetic lock loop is obstructed, the locked cabinet door of the second electromagnetic lock pin; A normally closed contact KB is drawn in electrification display, when the switch cubicle infraoral bit strip electricity of K1, K2, electrification display normally closed contact KB disconnects, loop is obstructed, second electromagnetic lock cannot be opened, the locked cabinet door of second electromagnetic lock pin, makes it open, and avoids operations staff to open charged cabinet door going to the wrong way interval mistiming.
The above embodiments are only be described preferred implementation of the present utility model, not limit design of the present utility model and scope.Under the prerequisite not departing from the utility model design concept, the various modification that this area ordinary person makes the technical solution of the utility model and improvement, all should drop into protection range of the present utility model.
Claims (7)
1. one kind prevents the energy-conservation condensate pump operation control system of misoperation, comprise frequency converter, condensate pump, described frequency converter is connected with condensate pump B with condensate pump A respectively by frequency converter gate out switch K1, K2, and described frequency converter is connected with power source bus with frequency converter earthing by power frequency supply switch QF2; Described condensate pump A, B are connected with power source bus respectively by power frequency supply switch QF1, QF3 and corresponding earthing A, B; It is characterized in that: be provided with the first electromagnetic lock at the condensate pump power frequency switch cubicle arm-tie handle place of described earthing A, B; At auxiliary contact access frequency converter gate out switch K1, K2 closing circuit of described earthing A, B, make earthing A, B when co-bit, normally-closed contact K opens, K1 or K2 closing circuit is obstructed, its closing circuit of locking, avoids line with ground to close a floodgate; The second electromagnetic lock is provided with at the switch cubicle handle place of described frequency converter gate out switch K1, K2.
2. a kind of energy-conservation condensate pump operation control system preventing misoperation as claimed in claim 1, it is characterized in that: be provided with auxiliary contact KA in the loop of described first electromagnetic lock, described auxiliary contact KA draws from frequency converter gate out switch K1, K2.
3. a kind of energy-conservation condensate pump operation control system preventing misoperation as claimed in claim 1, it is characterized in that: be provided with normally closed contact KB in the loop of described second electromagnetic lock, described normally closed contact KB draws from electrification display.
4. a kind of energy-conservation condensate pump operation control system preventing misoperation as claimed in claim 1, it is characterized in that: the first described electromagnetic lock and the second electromagnetic lock are respectively equipped with the first electromagnetic lock pin and the second electromagnetic lock pin, the first described electromagnetic lock pin and the second electromagnetic lock pin all can locked corresponding cabinet doors after its dead electricity.
5. a kind of energy-conservation condensate pump operation control system preventing misoperation as claimed in claim 4, is characterized in that: the first described electromagnetic lock pin and the second electromagnetic lock pin are cylindrical.
6. a kind of energy-conservation condensate pump operation control system preventing misoperation as claimed in claim 1, is characterized in that: described condensate pump power frequency switch cubicle is also provided with the first electromagnetic lock button and the first electromagnetic lock indicator light; The lower cabinet door of described frequency converter gate out switch K1, K2 switch cubicle is also provided with the second electromagnetic lock button and the second electromagnetic lock indicator light.
7. a kind of energy-conservation condensate pump operation control system preventing misoperation as claimed in claim 1, is characterized in that: the operating voltage of described power source bus is 6KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697289.7U CN205004982U (en) | 2015-09-10 | 2015-09-10 | Prevent misuse's energy -conserving condensate pump operation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697289.7U CN205004982U (en) | 2015-09-10 | 2015-09-10 | Prevent misuse's energy -conserving condensate pump operation control system |
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| Publication Number | Publication Date |
|---|---|
| CN205004982U true CN205004982U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520697289.7U Expired - Fee Related CN205004982U (en) | 2015-09-10 | 2015-09-10 | Prevent misuse's energy -conserving condensate pump operation control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205004982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313797A (en) * | 2020-03-04 | 2020-06-19 | 江苏大唐国际吕四港发电有限责任公司 | Commissioning method of frequency converter of condensate pump |
-
2015
- 2015-09-10 CN CN201520697289.7U patent/CN205004982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313797A (en) * | 2020-03-04 | 2020-06-19 | 江苏大唐国际吕四港发电有限责任公司 | Commissioning method of frequency converter of condensate pump |
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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: 20160127 Termination date: 20210910 |