CN215759328U - Energy-saving water pump device - Google Patents
Energy-saving water pump device Download PDFInfo
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- CN215759328U CN215759328U CN202122129016.0U CN202122129016U CN215759328U CN 215759328 U CN215759328 U CN 215759328U CN 202122129016 U CN202122129016 U CN 202122129016U CN 215759328 U CN215759328 U CN 215759328U
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- conveying pipeline
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Abstract
The utility model relates to the technology of water supply pumps, in particular to an energy-saving water pump device which comprises at least one-way water conveying pipeline and at least one two-way water conveying pipeline, wherein the one-way water conveying pipelines and the two-way water conveying pipelines are arranged in parallel; the water pump is characterized in that a one-way water pump is arranged on the one-way water conveying pipeline, a two-way water pump is arranged on the two-way water conveying pipeline, and water inlet and outlet ports of the one-way water pump and the two-way water pump are respectively connected with a water pump electric control valve. The bidirectional water pump is driven by a generator motor. The device can adjust the water supply on a large scale, and the lift change is little, supplies water in succession, saves the energy consumption.
Description
Technical Field
The utility model relates to the technology of water supply pumps, in particular to an energy-saving water pump device.
Background
The water pump is the most important device in a power plant, can supply cooling water to a condenser of a steam turbine for condensing exhaust gas of the steam turbine, and can also provide the cooling water for an oil cooler, a water cooler and an air cooler. In order to adapt to power generation of a power plant, the water pump needs to keep a continuous and water-quantity-adjustable running state.
In order to achieve adjustable water volume, one way is to use a fixed-frequency pump, but the water volume is not easily changed greatly. The other is to adopt a variable frequency pump, although the water quantity can be controlled by changing the rotating speed, the lift is in direct proportion to the square of the rotating speed (flow) theoretically, and the requirement of the lift is difficult to meet for a water supply system with the requirement of the lift. The long-term online operation of pumping plant is on the basis of satisfying water supply, regulation and control, and how to reduce its energy consumption is the problem that awaits a solution urgently.
Disclosure of Invention
In order to solve the problems, the utility model provides an energy-saving circulating water pump device which is provided with a parallel one-way pump and a parallel two-way pump, can supply water and can recover partial electric energy to achieve the aim of saving energy. The technical scheme adopted by the utility model is as follows:
an energy-saving water pump device comprises at least one unidirectional water conveying pipeline and at least one bidirectional water conveying pipeline, wherein the unidirectional water conveying pipelines and the bidirectional water conveying pipelines are arranged in parallel; the water pump is characterized in that a one-way water pump is arranged on the one-way water conveying pipeline, a two-way water pump is arranged on the two-way water conveying pipeline, and water inlet and outlet ports of the one-way water pump and the two-way water pump are respectively connected with a water pump electric control valve. The bidirectional water pump is driven by a generator motor.
The energy-saving water pump device further comprises a bypass, wherein at least one switch valve is arranged on the bypass, and the bypass is connected in parallel with the one-way water conveying pipeline and the two-way water conveying pipeline.
Preferably, an electric switch valve and a manual switch valve are arranged on the bypass, and the two switch valves are connected in series.
The utility model has the beneficial effects that:
first, the amount of water can be adjusted smoothly from zero to the total water output theoretically.
Secondly, the lift change is small, and the use of a user is hardly influenced.
Thirdly, when the water consumption is less, part of the electricity can be recycled.
Fourthly, the cost for installing the bypass small pump is saved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a forebay, 2 is a one-way water pump, 3 is a two-way water pump, 4 is an electric switch valve, 5 is a manual switch valve, and 6 is a water pump electric control valve.
Detailed Description
The utility model is further explained below with reference to the drawings.
The embodiment is an energy-saving water pump device, which comprises at least one unidirectional water conveying pipeline and at least one bidirectional water conveying pipeline which are communicated with a front pool 1, wherein the unidirectional water conveying pipelines and the bidirectional water conveying pipelines are arranged in parallel; the water pump is characterized in that a one-way water pump 2 is arranged on the one-way water conveying pipeline, a two-way water pump 3 is arranged on the two-way water conveying pipeline, and water inlet and outlet ports of the one-way water pump 2 and the two-way water pump 3 are respectively connected with a water pump electric control valve 6. The bidirectional water pump 3 is driven by a generator.
The energy-saving water pump device further comprises a bypass, wherein at least one switch valve is arranged on the bypass, and the bypass is connected in parallel with the one-way water conveying pipeline and the two-way water conveying pipeline. Preferably, the bypass is provided with an electric switch valve 4 and a manual switch valve 5, and the two switch valves are connected in series.
In the normal operation, any one water conveying pipeline or a combination of a plurality of water conveying pipelines can be selected to operate in combination with fig. 1. When the water demand drops greatly and lasts for a certain time, the unidirectional water pump 2 and the bidirectional water pump 3 preferably run in reverse, the control of the water pressure and the water quantity of the system is realized by controlling the water pump electric control valve 6 at the water inlet end of the bidirectional water pump 3, and the motor carried by the bidirectional water pump 3 is changed into a generator to generate electricity to recover partial electric energy. When the external flow is lower, the lift can be ensured to meet the requirements of users. This way of operation saves the installation of a water pump in the bypass.
When the one-way water pump 2 has a fault, the two-way water pump 3 is controlled to operate in the forward direction, meanwhile, the water quantity is adjusted by utilizing the bypass, and the fault of the one-way water pump 2 is eliminated as soon as possible. Similarly, when the unidirectional water pump 2 operates normally and the bidirectional water pump 3 fails, the water quantity is adjusted by using the bypass. Therefore, uninterrupted quantitative water supply is realized, and the shutdown loss of a power plant is avoided.
No matter the bidirectional water pump 3 rotates forwards or reversely, the water supply amount of the system always runs in a single direction, the bidirectional water pump 3 only regulates the water amount in reverse running, and partial electric energy is recycled. In the above embodiments, the number, order, properties, and the like of the pumps or valves may be changed as appropriate.
Claims (3)
1. An energy-saving water pump device, its characterized in that: the water supply system comprises at least one unidirectional water conveying pipeline and at least one bidirectional water conveying pipeline, wherein the unidirectional water conveying pipelines and the bidirectional water conveying pipelines are arranged in parallel; the water pump is characterized in that a one-way water pump (2) is arranged on the one-way water conveying pipeline, a two-way water pump (3) is arranged on the two-way water conveying pipeline, water inlet and outlet ports of the one-way water pump (2) and the two-way water pump (3) are respectively connected with a water pump electric control valve (6), and the two-way water pump (3) is driven by a generator motor.
2. The energy-saving water pump device according to claim 1, wherein: the water pump is characterized by further comprising at least one bypass, wherein at least one switch valve is arranged on the bypass, and the bypass is connected with the one-way water conveying pipeline and the two-way water conveying pipeline in parallel.
3. The energy-saving water pump device according to claim 2, wherein: the bypass is provided with an electric switch valve (4) and a manual switch valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122129016.0U CN215759328U (en) | 2021-09-06 | 2021-09-06 | Energy-saving water pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122129016.0U CN215759328U (en) | 2021-09-06 | 2021-09-06 | Energy-saving water pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215759328U true CN215759328U (en) | 2022-02-08 |
Family
ID=80084059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122129016.0U Active CN215759328U (en) | 2021-09-06 | 2021-09-06 | Energy-saving water pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215759328U (en) |
-
2021
- 2021-09-06 CN CN202122129016.0U patent/CN215759328U/en active Active
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