CN203488349U - Water-feeding pump - Google Patents
Water-feeding pump Download PDFInfo
- Publication number
- CN203488349U CN203488349U CN201320037696.6U CN201320037696U CN203488349U CN 203488349 U CN203488349 U CN 203488349U CN 201320037696 U CN201320037696 U CN 201320037696U CN 203488349 U CN203488349 U CN 203488349U
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- CN
- China
- Prior art keywords
- motor
- power supply
- water
- vacuum controller
- frequency converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a water-feeding pump. The water-feeding pump comprises a pump and a motor connected with the pump. A frequency converter is arranged between the motor and a power supply. A power supply breaker is arranged between the motor and the power supply. A vacuum controller I is arranged between the motor and the frequency converter. A vacuum controller II is arranged between the frequency converter and the power supply breaker. A vacuum controller III is arranged between the motor and the power supply breaker. According to the utility model, the frequency converter is connected with the motor, so that the frequency-conversion speed-regulation function of the frequency converter is utilized to adjust the rotating speed of the motor, and the water flow is controlled according to the change of the boiler load; the water-feeding pump is simple in structure and convenient to adjust, the energy loss caused by valve adjusting of an existing water-feeding pump is effectively reduced, the service lifetime of the equipment is prolonged, and the maintenance work load and the maintenance cost of the equipment are reduced.
Description
Technical field
The utility model relates to a kind of boiler equipment, is specifically related to a kind of feed water pump.
Background technique
During existing feed water pump operation, mainly by valve, control the flow of water, its output power can not change with the variation of boiler load, can only adjust by changing the aperture of valve, not only regulate inconvenience, and in the process of flow of utilizing valve regulated water, water is larger to the impact of valve and pipeline, cause the loss of energy, reduced the working life of equipment, increased maintenance workload and the maintenance cost of equipment.
Summary of the invention
The purpose of this utility model is to provide a kind of feed water pump, to solve existing feed water pump, utilizes the valve regulated energy loss causing and the problem that reduces service life of equipment.
Technical solution adopted in the utility model is that a kind of feed water pump, comprises pump and connected motor, between motor and power supply, is provided with frequency variator.
Feature of the present utility model is also,
Between motor and power supply, be provided with power circuit breaker, between motor and frequency variator, be provided with vacuum controller I, between frequency variator and power circuit breaker, be provided with vacuum controller II, between motor and power circuit breaker, be provided with vacuum controller III.
Frequency variator is high voltage converter.
The beneficial effects of the utility model are, the utility model is connected frequency variator with motor, utilize the frequency control of motor speed function of frequency variator, regulate the rotating speed of motor, according to the variation of boiler load, control the flow of water, simple in structure, easy to adjust, and effectively saved the energy loss that existing feed water pump causes by valve regulated, the working life of extension device, maintenance workload and the maintenance cost of reduction equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1. pump, 2. motor, 3. vacuum contactor I, 4. frequency variator, 5. vacuum contactor II, 6. power circuit breaker, 7. vacuum contactor III.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The utility model feed water pump, referring to Fig. 1, comprise pump 1 and connected motor 2, between motor 2 and power supply, be provided with frequency variator 4, between motor 2 and power supply, be provided with power circuit breaker 6, between motor 2 and frequency variator 4, be provided with vacuum controller I3, between frequency variator 4 and power circuit breaker 6, be provided with vacuum controller II5, between motor 2 and power circuit breaker 6, be provided with vacuum controller III7.Frequency variator 4 is high voltage converter, can input voltage be 6kV, the Ac that power frequency is 50Hz.
The utility model feed water pump has two kinds of running statees: converting operation state and power frequency operation state, in converting operation state, are in power frequency operation state extremely when frequency variator is normal; Vacuum controller I3 and vacuum controller II5 control feed water pump frequency conversion start and stop, and vacuum controller III7 controls the start and stop of feed water pump power frequency.When feed water pump 1 converting operation, closed vacuum controller I3 and vacuum controller II5, disconnect vacuum controller III7 simultaneously; During feed water pump 1 power frequency operation, closed vacuum controller III7, disconnects vacuum controller I3 and vacuum controller II5.
The utility model feed water pump is connected frequency variator 4 with motor 2, utilize the frequency control of motor speed function of frequency variator 4, regulate the rotating speed of motor 2, according to the variation of boiler load, control the flow of water, simple in structure, easy to adjust, and effectively saved the energy loss that existing feed water pump causes by valve regulated, the working life of extension device, maintenance workload and the maintenance cost of reduction equipment.
Claims (2)
1. a feed water pump, comprise pump (1) and connected motor (2), it is characterized in that: between described motor (2) and power supply, be provided with frequency variator (4), between described motor (2) and power supply, be provided with power circuit breaker (6), between described motor (2) and described frequency variator (4), be provided with vacuum controller I(3), between described frequency variator (4) and power circuit breaker (6), be provided with vacuum controller II(5), between described motor (2) and power circuit breaker (6), be provided with vacuum controller III(7).
2. feed water pump according to claim 1, is characterized in that: described frequency variator (4) is high voltage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320037696.6U CN203488349U (en) | 2013-01-18 | 2013-01-18 | Water-feeding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320037696.6U CN203488349U (en) | 2013-01-18 | 2013-01-18 | Water-feeding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488349U true CN203488349U (en) | 2014-03-19 |
Family
ID=50259187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320037696.6U Expired - Fee Related CN203488349U (en) | 2013-01-18 | 2013-01-18 | Water-feeding pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488349U (en) |
-
2013
- 2013-01-18 CN CN201320037696.6U patent/CN203488349U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |