CN220151563U - Anti-idle rotation control system for water pump of secondary water supply equipment - Google Patents
Anti-idle rotation control system for water pump of secondary water supply equipment Download PDFInfo
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- CN220151563U CN220151563U CN202320715356.8U CN202320715356U CN220151563U CN 220151563 U CN220151563 U CN 220151563U CN 202320715356 U CN202320715356 U CN 202320715356U CN 220151563 U CN220151563 U CN 220151563U
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- water pump
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- water supply
- idle
- supply equipment
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 239000008400 supply water Substances 0.000 claims 3
- 238000009987 spinning Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses an anti-idle control system of a water pump of secondary water supply equipment, which belongs to the technical field of water supply equipment, wherein the anti-idle control system of the water pump of the secondary water supply equipment is used for preventing continuous idle running of the water pump, the water pump is provided with a water pump motor, the water pump motor is connected to a control cabinet through three live wires, the anti-idle control system of the water pump comprises a current transformer and an electric parameter acquisition module, the current transformer is arranged on the live wire, the electric parameter acquisition module is in electric signal connection with the current transformer, and the electric parameter acquisition module is in signal connection with a PLC system. The anti-idle rotation control system for the water pump of the secondary water supply equipment can effectively prevent the problem of continuous idle rotation of the water pump, so that the condition that the water pump is damaged due to continuous dry combustion caused by idle rotation is avoided, and the cost is further saved.
Description
Technical Field
The utility model relates to the technical field of water supply equipment, in particular to a water pump anti-idle control system of secondary water supply equipment, which is used for preventing continuous idle running of a water pump.
Background
With the development of economy, urban high-rise buildings are more and more, so that the pressure of high-rise water supply is also more and more, and meanwhile, high-rise secondary pressurized water supply equipment is also more and more, so that the problem of subsequent maintenance of the secondary pressurized water supply equipment is more and more remarkable. The high-rise secondary pressurized water supply equipment generally adopts a multistage vertical centrifugal pump, and the water pump has the advantages that: the energy-saving device has the advantages of compact integral structure, small volume, light weight, low noise and obvious energy-saving effect, and has the following defects: poor self-absorption capability and easy evacuation. Therefore, the spin-up is not allowed during operation of the centrifugal pump, and may have a serious influence upon the spin-up.
The reason for the idling of the water pump is numerous, and the water pump can be divided into two types according to the existence of the medium, wherein one type is the medium-free or medium-less water pump, and the other type is the medium-free or medium-less water pump, and the possible reason for the idling of the water pump is as follows:
1. the medium flow or pressure of the water inlet of the water pump is insufficient;
2. the water inlet pipeline of the water pump is blocked;
3. the air in the water pump cavity is not exhausted.
Among these are possible causes of idle running of the medium water pump:
1. the water outlet valve or the check valve is not opened;
2. the water outlet pipeline is free from water, so that the phenomenon of stuffy beating occurs;
3. the set pressure far exceeds the pump head.
The water pump without medium idling can not be lubricated and cooled by mechanical seal or filler seal, and dry grinding is caused, so that the seal is damaged rapidly; the water pump with little medium idling is easy to generate cavitation, and the water pump runs for a long time, so that the medium in the pump heats, and the pump body and the fluid parts are damaged;
the rotor component and the pump body of the water pump with the idle running medium can continuously do work, so that the medium in the pump heats, the sealing element loses sealing effect due to heating, and the sealing ring can be locked due to the effect of thermal expansion and cold contraction.
The idle running of the water pump not only can influence the service life of the water pump, but also can waste electric energy, so that a user bears more operation and maintenance costs, such as electricity fees, maintenance fees and the like.
In summary, if the water pump can immediately alarm and automatically stop when idling, the safety of the unit is protected, and the novel water supply technology is particularly important and urgent.
Disclosure of Invention
The utility model has the advantages that the utility model provides the anti-idle rotation control system of the water pump of the secondary water supply equipment, wherein the current transformer is arranged on the live wire of the water pump motor and is connected with the PLC system through the electric parameter acquisition module, and the current transformer is mainly used for converting current analog signals into digital signals for the PLC system to identify, once the water pump motor idles, the PLC system can stop the water pump motor in time, so that the problem of continuous idling of the water pump is effectively prevented, the condition of damage to the water pump caused by continuous dry combustion due to idle rotation is avoided, and the cost is further saved.
The utility model has the advantages that the anti-idle rotation control system of the water pump of the secondary water supply equipment is provided, the overall structure is simple, the implementation is easy, the cost is low, and unnecessary energy consumption is not wasted due to continuous idle rotation.
The utility model has the advantages that the utility model provides the anti-idle rotation control system of the water pump of the secondary water supply equipment, wherein when the current transformers are simultaneously installed on three live wires, the PLC system can also be used for judging whether the current in the three live wires is stable or not when the water pump motor is in operation.
In order to achieve at least one advantage of the utility model, the utility model provides a water pump anti-idle rotation control system of a secondary water supply device, which is used for preventing continuous idle rotation of a water pump, wherein the water pump is provided with a water pump motor, the water pump motor is connected to a control cabinet through three live wires, the water pump anti-idle rotation control system comprises a current transformer and an electric parameter acquisition module, wherein the current transformer is arranged on a fire wire, the electric parameter acquisition module is in electric signal connection with the current transformer, and the electric parameter acquisition module is in signal connection with a PLC system.
According to an embodiment of the utility model said current transformer is implemented as one and said current transformer is mounted on any one of three said fire wires.
According to one embodiment of the utility model, the three current transformers are implemented as three, and are respectively installed on the three live wires, and the electric parameter acquisition module is simultaneously connected with the three current transformers.
According to an embodiment of the present utility model, the PLC system is further connected with an alarm element, so that a warning message can be sent out through the alarm element when the PLC determines that the water pump is idling.
According to an embodiment of the utility model, the alarm element is implemented as a buzzer.
According to an embodiment of the utility model, the water pump anti-idle control system further comprises a man-machine interface product, wherein the man-machine interface product is used for inputting rated current of the water pump motor by a user through an input unit of the man-machine interface product.
These and other objects, features and advantages of the present utility model will become more fully apparent from the following detailed description.
Drawings
Fig. 1 is a schematic diagram showing the construction of a water pump anti-idle control system for a secondary water supply device according to a preferred embodiment of the present utility model.
Fig. 2 shows a schematic diagram of the operation principle of the anti-idle control system of the water pump.
Fig. 3 shows a schematic diagram of the operation principle of the PLC system of the present utility model.
Reference numerals: 10-a water pump motor, 20-a current transformer and 30-an electric parameter acquisition module.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be appreciated by those skilled in the art that in the disclosure of the present specification, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, the above terms should not be construed as limiting the present utility model.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Referring to fig. 1 to 3, a secondary water supply pump anti-idle control system according to a preferred embodiment of the present utility model will be described in detail below, wherein the secondary water supply pump anti-idle control system is used to prevent continuous idle rotation of a water pump, wherein the water pump is provided with a water pump motor 10, wherein the water pump motor 10 is connected to a control cabinet through three fire wires, wherein the water pump anti-idle control system comprises a current transformer 20 and an electrical parameter acquisition module 30 (or an electrical parameter data acquisition module), wherein the current transformer 20 is installed on the fire wires to acquire current of the fire wires in real time and form a current analog signal, wherein the electrical parameter acquisition module 30 (such as an EDA9033 acquisition module) is electrically connected to the current transformer 20, and the electrical parameter acquisition module 30 is signal-connected to a PLC system to convert the current analog signal into a digital signal and transmit to the PLC system.
The hydraulic loss of the water pump mainly comprises impeller, disc friction loss, impeller flow passage friction loss and impeller flow passage diffusion loss. Under normal conditions, the hydraulic resistance loss power accounts for 30%, the impeller disc loss power accounts for 8.2%, the thrust bearing friction loss power accounts for 6% and the total 44.2%, so that under the condition that the water pump does not discharge water, the shaft power is about 44.2% of rated power, current data has very obvious change when the water pump is not idling, the PLC system judges whether the water pump idles or not based on the received current data converted into digital signals, if the water pump idles, the operation of the water pump is stopped in time, and the problem of continuous idling of the water pump can be effectively prevented, so that the condition that the water pump is damaged due to continuous dry combustion caused by idle rotation is avoided, and the cost is saved.
In order to further save the equipment cost, as a preferred embodiment, the current transformer 20 is implemented as one, and the current transformer 20 is mounted on any one of the three fire wires.
As another preferred embodiment, the three current transformers 20 are implemented as three, and the three current transformers 20 are respectively installed on the three fire wires, and the electric parameter collecting module 30 is connected with the three current transformers 20 at the same time, so that the current data on the three fire wires can be obtained through the three current transformers 20 at the same time, whether the currents on the three fire wires are balanced or not can be judged, and the water pump motor 10 is ensured not to have abnormal conditions such as open circuit, open phase and the like.
Still preferably, the PLC system is further connected with an alarm element, so that when the PLC determines that the water pump idles, the PLC system can send out a reminding message through the alarm element, and remind a worker to repair or replace another water pump in time, thereby ensuring the stability of water supply.
Further preferably, the alarm element is implemented as a buzzer.
In one embodiment, the anti-idle rotation control system of the water pump further comprises a human-machine interface product, or referred to as an HMI human-machine interface product, or referred to as a "human-machine interface", and is configured to enable a user to input rated current of the water pump motor through an input unit of the human-machine interface product, and the input rated current value may be different under different working conditions or environments, so that the anti-idle rotation control system of the water pump can be ensured to have good product adaptability, and the application range is wide.
In general, human-machine interface products are defined as: the digital equipment is connected with industrial control equipment such as a Programmable Logic Controller (PLC), a frequency converter, a direct current speed regulator, an instrument and the like, is displayed by a display screen, writes working parameters or inputs operation commands through an input unit (such as a touch screen, a keyboard, a mouse and the like) and realizes information interaction between people and machines, and consists of hardware and software.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (6)
1. The water pump anti-idle control system of the secondary water supply equipment is used for preventing continuous idle running of the water pump, wherein the water pump is provided with a water pump motor, and the water pump motor is connected to a control cabinet through three live wires.
2. The secondary water supply water pump anti-idle control system of claim 1, wherein the current transformer is implemented as one and is mounted on any one of the three fire wires.
3. The anti-idle control system of a water pump of secondary water supply equipment according to claim 1, wherein three current transformers are implemented, and three current transformers are respectively installed on three live wires, and the electric parameter acquisition module is simultaneously connected with three current transformers.
4. A secondary water supply apparatus water pump anti-idle control system as claimed in claim 2 or 3, wherein the PLC system is further connected with an alarm element, so that a warning message can be sent out through the alarm element when the PLC determines that the water pump is idle.
5. The secondary water supply water pump anti-spinning control system of claim 4, wherein said alarm element is implemented as a buzzer.
6. The secondary water supply water pump anti-idle control system of claim 1, further comprising a human-machine interface product for a user to input a rated current of the water pump motor through an input unit of the human-machine interface product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320715356.8U CN220151563U (en) | 2023-03-30 | 2023-03-30 | Anti-idle rotation control system for water pump of secondary water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320715356.8U CN220151563U (en) | 2023-03-30 | 2023-03-30 | Anti-idle rotation control system for water pump of secondary water supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151563U true CN220151563U (en) | 2023-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320715356.8U Active CN220151563U (en) | 2023-03-30 | 2023-03-30 | Anti-idle rotation control system for water pump of secondary water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151563U (en) |
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2023
- 2023-03-30 CN CN202320715356.8U patent/CN220151563U/en active Active
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