CN205857292U - A kind of frequency conversion feedwater closed-loop regulating system Wiring module - Google Patents
A kind of frequency conversion feedwater closed-loop regulating system Wiring module Download PDFInfo
- Publication number
- CN205857292U CN205857292U CN201620428314.6U CN201620428314U CN205857292U CN 205857292 U CN205857292 U CN 205857292U CN 201620428314 U CN201620428314 U CN 201620428314U CN 205857292 U CN205857292 U CN 205857292U
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- China
- Prior art keywords
- pump
- catalyst
- deoxygenation
- feed pump
- frequency conversion
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Abstract
The utility model discloses a kind of frequency conversion feedwater closed-loop regulating system Wiring module, including feed pump circuit and deoxygenation pump circuit；Described feed pump circuit includes circuit breaker Q 1, converter G, catalyst 1KM1, catalyst 1KM2, the first feed pump, the second feed pump；Described circuit breaker Q 1 is arranged between three phase mains and converter G；Described catalyst 1KM1, catalyst 1KM2 are separately positioned between the first feed pump, the second feed pump and converter G；Described deoxygenation pump circuit includes circuit breaker Q 2, catalyst 2KM1, catalyst 2KM2, thermorelay FR21, thermorelay FR22, the first deoxygenation pump, the second deoxygenation pump.This utility model frequency conversion feedwater regulation can maintain constant liquid level of steam drum automatically, and according to programed logic automatic start-stop stand-by pump, stepless speed regulation, control accuracy is high, regulating effect is good, compare with tradition water supply system, do not result in frequent start-stop pump to electrical network impact, motor rotation blockage, the defect of liquid level instability.
Description
Technical field
This utility model relates to automatic boiler control, is specifically related to the frequency conversion feedwater closed-loop regulating system of a kind of steam boiler
Wiring module.
Background technology
The water supply modes of current steam boiler typically has two kinds: position formula feeds water or makes electricity consumption adjust valve continuous water feeding, position formula
Feedwater causes frequent start-stop pump, and feedwater is discontinuous.And the resistance using valve regulated to increase throttles, can cause again and use electric loss
Or damage motor, all there is the defects such as surplus is big, work efficiency is low, energy consumption is big, starting current is big, and impact in a lot of motor drag equipment
The benefit of enterprise.
Summary of the invention
This utility model is for the problems referred to above, it is provided that a kind of frequency conversion feedwater closed-loop regulating system Wiring module, including feedwater
Pump circuit and deoxygenation pump circuit；Described feed pump circuit include circuit breaker Q 1, converter G, catalyst 1KM1, catalyst 1KM2,
First feed pump, the second feed pump；Described circuit breaker Q 1 is arranged between three phase mains and converter G；Described catalyst 1KM1,
Catalyst 1KM2 is separately positioned between the first feed pump, the second feed pump and converter G；Described deoxygenation pump circuit includes open circuit
Device Q2, catalyst 2KM1, catalyst 2KM2, thermorelay FR21, thermorelay FR22, the first deoxygenation pump, the second deoxygenation pump；Institute
State circuit breaker Q 2 and be arranged on catalyst 2KM1, between catalyst 2KM2 and three phase mains；Described thermorelay FR21 is arranged on and connects
Between tentaculum 2KM1 and the first deoxygenation pump；Described thermorelay FR22 is arranged between catalyst 2KM2 and the second deoxygenation pump；Institute
State thermorelay FR21, thermorelay FR22 connects the first deoxygenation pump respectively, the second deoxygenation pump.
Further, described first feed pump is first feed pump of 22KW.
Further, described second feed pump is second feed pump of 22KW.
Further, described first deoxygenation pump is the first deoxygenation pump of 7.5KW.
Further, described second deoxygenation pump is the second deoxygenation pump of 7.5KW.
Advantage of the present utility model:
1, energy-efficient: frequency conversion feedwater regulation can maintain constant liquid level of steam drum automatically, and automatic according to programed logic
Start and stop stand-by pump, stepless speed regulation, control accuracy is high, and regulating effect is good, compares with tradition water supply system, does not results in frequent start-stop
Pump is to electrical network impact, motor rotation blockage, the defect of liquid level instability.
2, multiple functional: to realize Automatic Control, the switching undisturbed of hands/automatically, flexible configuration, reliable, have deficient
Press, cross the defencive functions such as stream.According to user's needs, extendable functions: configuration host computer, motor exchange-column shift etc..
3, life: owing to frequency conversion soft start and soft stop, the average torque on motor shaft and abrasion reduce, decrease maintenance capacity
And expense, the life-span of water pump is greatly improved.
In addition to objects, features and advantages described above, this utility model also has other purpose, feature and excellent
Point.Below with reference to figure, this utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing being further appreciated by of the present utility model, of the present utility model
Schematic description and description is used for explaining this utility model, is not intended that improper restriction of the present utility model.
Fig. 1 is a kind of frequency conversion feedwater closed-loop regulating system Wiring module schematic diagram of this utility model embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
With reference to Fig. 1, a kind of frequency conversion feedwater closed-loop regulating system Wiring module as shown in Figure 1, including feed pump circuit and
Deoxygenation pump circuit；Described feed pump circuit includes circuit breaker Q 1, converter G, catalyst 1KM1, catalyst 1KM2, the first feedwater
Pump, the second feed pump；Described circuit breaker Q 1 is arranged between three phase mains and converter G；Described catalyst 1KM1, catalyst
1KM2 is separately positioned between the first feed pump, the second feed pump and converter G；Described deoxygenation pump circuit include circuit breaker Q 2,
Catalyst 2KM1, catalyst 2KM2, thermorelay FR21, thermorelay FR22, the first deoxygenation pump, the second deoxygenation pump；Described disconnected
Road device Q2 is arranged on catalyst 2KM1, between catalyst 2KM2 and three phase mains；Described thermorelay FR21 is arranged on catalyst
Between 2KM1 and the first deoxygenation pump；Described thermorelay FR22 is arranged between catalyst 2KM2 and the second deoxygenation pump；Described heat
Relay FR21, thermorelay FR22 connect the first deoxygenation pump, the second deoxygenation pump respectively.
Described first feed pump is first feed pump of 22KW.
Described second feed pump is second feed pump of 22KW.
Described first deoxygenation pump is the first deoxygenation pump of 7.5KW.
Described second deoxygenation pump is the second deoxygenation pump of 7.5KW.
Described converter G is ABB converter.
Native system uses converter, replaces traditional electric control valve, reaches energy-saving and cost-reducing purpose.Every boiler configuration
Two feed pumps, working method the using and the reserved, feed pump frequency control is divided into hands/automatic two kinds of working methods, switching undisturbed.
The beneficial effects of the utility model:
Energy-efficient: frequency conversion feedwater regulation can maintain constant liquid level of steam drum automatically, and automatically opens according to programed logic
Stopping stand-by pump, stepless speed regulation, control accuracy is high, and regulating effect is good, compares with tradition water supply system, does not results in frequent start-stop pump
To electrical network impact, motor rotation blockage, the defect of liquid level instability.
Multiple functional: to realize Automatic Control, the switching undisturbed of hands/automatically, flexible configuration, reliable, have under-voltage,
Cross the defencive functions such as stream.According to user's needs, extendable functions: configuration host computer, motor exchange-column shift etc..
Life: due to frequency conversion soft start and soft stop, the average torque on motor shaft and abrasion reduce, decrease maintenance capacity and
Expense, the life-span of water pump is greatly improved.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in guarantor of the present utility model
Within the scope of protecting.
Claims (5)
1. a frequency conversion feedwater closed-loop regulating system Wiring module, it is characterised in that include feed pump circuit and deoxygenation pump circuit；
Described feed pump circuit include chopper (Q1), converter (G), catalyst (1KM1), catalyst (1KM2), the first feed pump,
Second feed pump；Described chopper (Q1) is arranged between three phase mains and converter (G)；Described catalyst (1KM1), contact
Device (1KM2) is separately positioned between the first feed pump, the second feed pump and converter (G)；Described deoxygenation pump circuit includes open circuit
Device (Q2), catalyst (2KM1), catalyst (2KM2), thermorelay (FR21), thermorelay (FR22), the first deoxygenation pump,
Two deoxygenation pumps；Described chopper (Q2) is arranged on catalyst (2KM1), between catalyst (2KM2) and three phase mains；Described heat continues
Electrical equipment (FR21) is arranged between catalyst (2KM1) and the first deoxygenation pump；Described thermorelay (FR22) is arranged on catalyst
(2KM2) between and the second deoxygenation pump；Described thermorelay (FR21), thermorelay (FR22) connect respectively the first deoxygenation pump,
Two deoxygenation pumps.
Frequency conversion the most according to claim 1 feedwater closed-loop regulating system Wiring module, it is characterised in that described first feedwater
Pump is first feed pump of 22KW.
Frequency conversion the most according to claim 1 feedwater closed-loop regulating system Wiring module, it is characterised in that described second feedwater
Pump is second feed pump of 22KW.
Frequency conversion the most according to claim 1 feedwater closed-loop regulating system Wiring module, it is characterised in that described first deoxygenation
Pump is the first deoxygenation pump of 7.5KW.
5. according to the arbitrary described frequency conversion feedwater closed-loop regulating system Wiring module of claim 1-4, it is characterised in that described the
Two deoxygenation pumps are the second deoxygenation pump of 7.5KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428314.6U CN205857292U (en) | 2016-05-11 | 2016-05-11 | A kind of frequency conversion feedwater closed-loop regulating system Wiring module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428314.6U CN205857292U (en) | 2016-05-11 | 2016-05-11 | A kind of frequency conversion feedwater closed-loop regulating system Wiring module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205857292U true CN205857292U (en) | 2017-01-04 |
Family
ID=57643353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428314.6U Expired - Fee Related CN205857292U (en) | 2016-05-11 | 2016-05-11 | A kind of frequency conversion feedwater closed-loop regulating system Wiring module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205857292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049785A (en) * | 2020-08-28 | 2020-12-08 | 营口康辉石化有限公司 | Safe linkage control system for de-aeration device softened water supply pump |
| CN112783220A (en) * | 2020-12-30 | 2021-05-11 | 中国长江电力股份有限公司 | Water level maintaining system based on variable-frequency water level maintaining equipment and self-adaptive control method |
-
2016
- 2016-05-11 CN CN201620428314.6U patent/CN205857292U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049785A (en) * | 2020-08-28 | 2020-12-08 | 营口康辉石化有限公司 | Safe linkage control system for de-aeration device softened water supply pump |
| CN112049785B (en) * | 2020-08-28 | 2022-08-05 | 康辉新材料科技有限公司 | Safe linkage control system for de-aeration device softened water supply pump |
| CN112783220A (en) * | 2020-12-30 | 2021-05-11 | 中国长江电力股份有限公司 | Water level maintaining system based on variable-frequency water level maintaining equipment and self-adaptive control method |
| CN112783220B (en) * | 2020-12-30 | 2023-01-13 | 中国长江电力股份有限公司 | Water level maintaining system based on variable-frequency water level maintaining equipment and self-adaptive control 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: 20170104 Termination date: 20190511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |