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CN-122010313-A - Impeller based on self-adaptive adjustment of inflow and application method thereof

CN122010313ACN 122010313 ACN122010313 ACN 122010313ACN-122010313-A

Abstract

The invention relates to the technical field of sewage treatment, in particular to a flow pushing device based on self-adaptive adjustment of inflow and a use method thereof. The flow sensor, the body, the power switching mechanism and the energy storage mechanism are sequentially arranged along the water flow direction, the body is connected with or disconnected from the energy storage mechanism through the power switching mechanism, and the body, the flow sensor and the switching mechanism are all in communication connection with the controller. The invention can establish a control closed loop taking the real-time water inflow as a signal, so that the impeller can automatically store energy at low load and release energy at high load for auxiliary operation, and the peak clipping and valley filling of energy are realized.

Inventors

  • LIU SHIYANG
  • LI WENTING
  • XIE YUN

Assignees

  • 长沙环境保护职业技术学院

Dates

Publication Date
20260512
Application Date
20260331

Claims (10)

  1. 1. The utility model provides a impeller based on intake flow self-adaptation is adjusted which characterized in that includes The body (1) is provided with a variable frequency motor (11) for realizing variable frequency plug flow adjustment of the plug flow device; the flow sensor (2) is used for monitoring the inflow water flow in real time and generating a flow signal; an energy storage mechanism (3) for storing and releasing energy for driving the body (1) to operate; A power switching mechanism (4) for connecting and disconnecting the body (1) and the energy storage mechanism (3); the controller (5) is used for controlling the start and stop of the body (1), receiving the flow signal and outputting a control instruction; The flow sensor (2) the body (1) the power switching mechanism (4) the energy storage mechanism (3) sets gradually along the rivers direction, body (1) pass through power switching mechanism (4) with energy storage mechanism (3) are connected or are disconnected, body (1) flow sensor (2) the switching mechanism all with controller (5) communication connection.
  2. 2. The impeller based on the self-adaptive adjustment of the inflow rate according to claim 1, wherein the power switching mechanism (4) is an electromagnetic clutch, the fixed end of the electromagnetic clutch is connected with the body (1), and the movable end of the electromagnetic clutch is connected with the energy storage mechanism (3).
  3. 3. The impeller based on the self-adaptive adjustment of the inflow rate according to claim 2, wherein the body (1) comprises an impeller assembly and a driving assembly, the driving assembly is connected with the impeller assembly, the fixed end of the electromagnetic clutch is connected with a first transmission shaft (41), the first transmission shaft (41) is sleeved in the driving assembly and penetrates through the driving assembly, and the first transmission shaft (41) is far away from the fixed end of the electromagnetic clutch and is connected with the impeller assembly.
  4. 4. A water inlet flow rate self-adaptive adjustment-based impeller according to claim 3, characterized in that the impeller assembly comprises a wheel frame (13) and an impeller (12), the driving assembly comprises a first shell (14), the wheel frame (13) is positioned at the front end of the first shell (14) and fixedly connected with the first shell (14), the impeller (12) is movably positioned in the wheel frame (13), the variable frequency motor (11) is arranged in the first shell (14), an output shaft of the variable frequency motor (11) is connected with the impeller (12), and the first transmission shaft (41) penetrates through the variable frequency motor (11) and the end part of the first transmission shaft is connected with the impeller (12).
  5. 5. The impeller based on the self-adaptive adjustment of the inflow rate according to claim 4, wherein the movable end of the electromagnetic clutch is connected with a second transmission shaft (42), and the second transmission shaft (42) is fixedly arranged through the energy storage mechanism (3).
  6. 6. The impeller based on the self-adaptive adjustment of the inflow rate according to claim 5, wherein the energy storage mechanism (3) comprises a second shell (31), a vacuum cavity (311) is arranged in the second shell (31), a flywheel (32) is arranged in the vacuum cavity (311), the flywheel (32) is fixedly sleeved outside the second transmission shaft (42), a first bearing (33) is arranged in the second shell (31), and the second transmission shaft (42) is installed through the first bearing (33).
  7. 7. The water inflow self-adaptive adjustment-based impeller according to claim 6, wherein the energy storage mechanism (3) further comprises a bi-directional motor (34), the bi-directional motor (34) is located between the movable end of the electromagnetic clutch and the flywheel (32) and is connected with the flywheel (32), and the bi-directional motor (34) is further electrically connected with the variable frequency motor (11).
  8. 8. The impeller based on the adaptive adjustment of the inflow rate according to claim 1, further comprising a chain (6), the end of the chain (6) being connected to the body (1).
  9. 9. The application method of the impeller based on the self-adaptive adjustment of the inflow water flow is characterized by comprising the following steps of: S1, monitoring the inflow water flow in real time through a flow sensor (2), generating a flow signal and transmitting the flow signal to a controller (5); S2, after receiving the flow signal, the controller (5) judges the flow: if the real-time flow rate is higher than the high flow rate threshold value, an energy storage mode is entered, wherein the controller (5) controls the power switching mechanism (4) to enable the body (1) to be connected with the energy storage mechanism (3), and surplus mechanical energy of the body (1) is stored in the energy storage mechanism (3); If the real-time flow is lower than the low flow threshold, entering an energy release mode, wherein the controller (5) controls the power switching mechanism (4) to enable the body (1) to be connected with the energy storage mechanism (3), and the energy storage mechanism (3) provides driving force for the body (1); If the real-time flow is larger than the low flow threshold and smaller than the high flow threshold, a speed regulation mode is entered, wherein the controller (5) controls the power switching mechanism (4) to disconnect the body (1) from the energy storage mechanism (3), and the power of the variable frequency motor (11) is matched with the current pushing flow requirement to operate by regulating the rotating speed of the variable frequency motor.
  10. 10. The method of using a water inlet flow rate adaptive adjustment-based impeller according to claim 9, wherein the high flow rate threshold is 320m3/h-380m3/h and the low flow rate threshold is 120m3/h-180m3/h.

Description

Impeller based on self-adaptive adjustment of inflow and application method thereof Technical Field The invention relates to the technical field of sewage treatment, in particular to a flow pushing device based on self-adaptive adjustment of inflow and a use method thereof. Background The impeller is also called a submerged impeller, is a core device in a biochemical treatment unit of a sewage treatment plant, such as an aeration tank, an anaerobic tank and an oxidation ditch, has the main functions of pushing mixed liquid to flow, preventing sludge from precipitating, and promoting the full contact of sewage, oxygen and microorganisms, and is a key for ensuring the biochemical reaction efficiency. Along with the continuous improvement of the requirements of the sewage treatment industry on energy conservation, consumption reduction, intelligent operation and equipment reliability, the technical development of the impeller also presents a diversified trend. The existing propeller has the following defects that energy flows are dissipated unidirectionally, a buffering mechanism of low storage and high emission is lacked, power impact of a power grid cannot be stabilized and peak demand is reduced, namely, power which is saved by the motor in a speed-down operation mode is not stored but is wasted in a water inflow low-valley period, and when a larger propeller force is required in a flow peak period, the motor only can draw higher instantaneous power from the power grid, and the effect of peak clipping and valley filling cannot be achieved on the power grid load. Disclosure of Invention The invention aims to overcome the defect of energy waste caused by a flow impeller in the prior art, provides a flow impeller based on self-adaptive adjustment of inflow and a use method thereof, can establish a control closed loop taking real-time inflow as a signal, enables the flow impeller to automatically store energy at low load and release energy at high load for auxiliary operation, realizes peak clipping and valley filling of energy, reduces peak power consumption of a power grid system, improves process stability, and promotes the flow impeller to change from single execution equipment to an intelligent energy-saving unit. In order to solve the technical problems, the invention adopts the following technical scheme: The utility model provides a impeller based on intake flow self-adaptation adjusts, include The body is provided with a variable frequency motor and is used for realizing variable frequency plug flow adjustment of the plug flow device; the flow sensor is used for monitoring the inflow water flow in real time and generating a flow signal; The energy storage mechanism is used for storing and releasing energy for driving the body to operate; The power switching mechanism is used for connecting and disconnecting the body and the energy storage mechanism; The controller is used for controlling the start and stop of the body, receiving the flow signal and outputting a control instruction; The flow sensor, the body the power switching mechanism the energy storage mechanism sets gradually along the rivers direction, the body passes through the power switching mechanism with energy storage mechanism connects or breaks away from, the body the flow sensor the switching mechanism all with the controller communication connection. The body of the invention is used for realizing the basic functions of the impeller, in particular to realizing water circulation, mixing and stirring and preventing suspended substances from precipitating, and the rotating speed of the motor can be regulated by the built-in variable frequency motor according to the requirements so as to improve the energy-saving effect. The flow sensor can be a Doppler ultrasonic flowmeter or a time difference ultrasonic flowmeter, can be used for monitoring sewage flow in a cognitive range of a person skilled in the art, can be used for detecting inflow water in an trial mode and generating flow signals, is arranged at the front end of the body and can be used for monitoring sewage flow passing through the body, the energy storage mechanism is used for converting kinetic energy of the water flow into mechanical energy of the body when the sewage flow is high, the body is connected with the energy storage mechanism, the mechanical energy is directly stored or converted into other energy to be stored by the energy storage mechanism, and the energy is released to the body by the energy storage mechanism when the sewage flow is low so as to drive the body to operate, thereby realizing efficient utilization of resources. The power switching mechanism is used for enabling the energy storage mechanism to be connected with the body when the energy storage mechanism stores energy or releases energy, enabling the energy storage mechanism to be disconnected with the body at other times, and driving by adopting the variable frequency motor arranged in the body under