Intelligent adjustment of the thrust of a submersible flow promoter according to the sludge concentration

Abstract

This utility model discloses a submersible jet mixer that intelligently adjusts thrust based on sludge concentration. It includes an AC variable frequency motor, with an electrical control box electrically connected to one side of the motor. The control box is electrically connected to external electrical control equipment via terminals. A hollow rod is mounted on the side of the control box, and a radiometric density meter is installed at the end of the hollow rod. The AC variable frequency motor is connected to a drive shaft via a gearbox, and multiple jet fans are mounted on the drive shaft. The control box includes a sealed outer shell, and a microprocessor electrically connected to the terminals is located at the top of the sealed outer shell. This submersible jet mixer, which intelligently adjusts thrust based on sludge concentration, can collect sludge concentration data in real time and adjust the jet speed according to pre-set parameters, thereby adjusting the thrust and achieving autonomous and intelligent thrust control. This results in an optimal balance between energy consumption and jet performance.

Description

Technical Field

[0001] This utility model relates to the field of propellers, specifically a submersible propeller that intelligently adjusts thrust based on sludge concentration. Background Technology

[0002] A flow mixer, also known as a submersible flow mixer, is a common mixing and low-speed flow propulsion device. It features a compact structure, small size, light weight, simple operation and maintenance, convenient and quick installation, and long service life. It can generate a strong water flow with low tangential flow through its blades, thereby creating water flow for water circulation and nitrification, denitrification, and phosphorus removal stages in the tank. This prevents sludge deposition and improves reaction efficiency. It is widely used in aeration tanks and anaerobic tanks in industrial and municipal wastewater treatment plants, greatly improving the efficiency and quality of chemical treatment.

[0003] As the application of propellers becomes more widespread, their models and specifications are constantly evolving and improving. For example, Chinese patent application number CN202322600502.5 describes a multi-support submersible propeller that solves the problem of inconvenient impeller replacement in existing submersible propellers. This invention facilitates the disassembly and assembly of the propeller impeller and the motor shaft through a detachable structure. Disassembly is required for propeller impeller maintenance. The screws are unscrewed from the screw holes, releasing the fixation between the guide sleeve and the motor shaft. The propeller impeller is then pulled to one end, separating the sliding groove and sliding column inside the fixing sleeve, allowing the propeller impeller to be removed. The aforementioned patent is one of the common types of flow promoters. However, the flow promoter has the same defects that are common in existing flow promoters on the market. That is, the speed of the flow promoter needs to be manually adjusted. It cannot automatically and intelligently measure the sludge concentration and adjust the flow promoter speed based on the measurement feedback data, so as to achieve the best balance between energy consumption and flow promotion effect. Summary of the Invention

[0004] The purpose of this utility model is to provide a submersible jet mixer that senses sludge concentration and intelligently adjusts thrust, in order to solve the problems mentioned in the background art, such as the need for manual adjustment of the jet mixer's rotation speed, insufficient autonomy and intelligence, and inability to achieve optimal energy consumption and jet mixing effect.

[0005] The technical solution of this utility model is implemented as follows: A submersible thruster that senses sludge concentration and intelligently adjusts thrust includes an AC variable frequency motor. An electrical control box is electrically connected to one side of the AC variable frequency motor. The electrical control box is electrically connected to an external electrical control device via terminals. A hollow rod is installed on the side of the electrical control box, and a radioactivity density meter is installed at the end of the hollow rod. The AC variable frequency motor is driven by a gearbox and a drive shaft, on which multiple thrust fans are installed. The electrical control box includes a sealed outer shell. A microprocessor electrically connected to the terminals is located at the top of the sealed outer shell. The microprocessor is electrically connected to the radioactivity density meter via a composite cable laid inside the hollow rod. The microprocessor is also electrically connected to the AC variable frequency motor via a motor speed controller.

[0006] Preferably, the fan is provided with a flow guide cover, which is fixedly connected to the gearbox housing by a fixing bracket.

[0007] Preferably, there are at least two radioactivity densitometers, and the multiple radioactivity densitometers are evenly distributed around the electrical control box. The radioactivity densitometers are fixedly connected to the electrical control box housing via the hollow rod.

[0008] Preferably, the sealing shell is made of copper, and the surface of the sealing shell is treated with anti-corrosion measures.

[0009] Preferably, the hollow rod is made of titanium alloy, and the inner wall of the hollow rod is coated with an insulating coating.

[0010] Preferably, the air deflector is made of fiberglass.

[0011] The beneficial effects of this utility model are as follows: This submersible jet mixer with intelligent thrust adjustment based on sludge concentration can collect sludge concentration data in real time and adjust the jet speed according to pre-set parameters, thereby adjusting the thrust and achieving autonomous and intelligent thrust control, so as to achieve the best balance between energy consumption and jet performance of this device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is the front view of the present invention.

[0014] Figure 2This is a partial sectional view of the present invention.

[0015] Figure 3 This is a bottom view of the present invention.

[0016] Figure 4 This is an internal structural view of the electrical control box of this utility model.

[0017] The components include: 1. Electrical control box; 2. Terminal block; 3. Hollow rod; 4. Radiometric density meter; 5. AC variable frequency motor; 6. Gearbox; 7. Draft shield; 8. Drive shaft; 9. Draft fan; 10. Fixture; 101. Sealed housing; 102. Microprocessor; 103. Motor speed controller; 104. Compliant cable. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figures 1-4 A submersible jet thruster that senses sludge concentration and intelligently adjusts thrust includes an AC variable frequency motor 5. An electrical control box 1 is electrically connected to one side of the AC variable frequency motor 5. The electrical control box 1 is electrically connected to an external electrical control device through a terminal block 2. A hollow rod 3 is installed on the side of the electrical control box 1. A radioactivity density meter 4 is installed at the end of the hollow rod 3. The AC variable frequency motor 5 is connected to a drive shaft 8 through a gearbox 6. Multiple jet thrusters 9 are installed on the drive shaft 8.

[0020] The electrical control box 1 includes a sealed outer shell 101. A microprocessor 102, which is electrically connected to the terminal block 2, is disposed at the top inside the sealed outer shell 101. The microprocessor 102 is electrically connected to the radioactivity density meter 4 through a composite cable 104 laid inside the hollow rod 3. The microprocessor 102 is electrically connected to the AC variable frequency motor 5 through a motor speed controller 103.

[0021] See Figure 1 and Figure 2 The propulsion fan 9 is provided with a flow guide 7 on its exterior. The flow guide 7 is fixedly connected to the gearbox 6 housing by a fixing bracket 10. This arrangement makes it easy to fix the flow guide 7 on the exterior of the propulsion fan 9 by the fixing bracket 10, thereby protecting the propulsion fan 9 from the impact of lateral runoff.

[0022] See Figure 3There are at least two radioactive density meters 4. Multiple radioactive density meters 4 are evenly distributed around the electrical control box 1. The radioactive density meters 4 are fixedly connected to the housing of the electrical control box 1 through hollow rods 3. This arrangement makes it easy to use multiple radioactive density meters 4 to collect sludge concentration information from multiple locations around the device at the same time. By cross-comparison, the accuracy of data collection is ensured.

[0023] See Figure 4 The sealed housing 101 is made of copper and the surface of the sealed housing 101 is treated with anti-rust treatment. Copper has the characteristics of high thermal conductivity, which can improve the heat dissipation efficiency of the electrical control box 1.

[0024] See Figures 1-4 The hollow rod 3 is made of titanium alloy. The inner wall of the hollow rod 3 is coated with insulating paint. The titanium alloy has strong corrosion resistance and high structural strength, which can ensure the stability of the position of the radioactivity density meter 4, thereby enabling fixed-point data acquisition.

[0025] See Figures 1-3 The flow deflector 7 is made of fiberglass, which makes it easy for staff to observe at any time whether the flow fan 9 inside the flow deflector 7 is dirty or tangled with cables, vines or other debris, so as to deal with it in a timely manner.

[0026] Working principle: When using this device, first install it in the required location, and connect the control box 1 to the external electrical control equipment through the terminal 2. The external electrical control equipment provides an electrical signal to the control box 1 through the terminal 2. The radiometric densitometer 4 emits gamma rays, which pass through the sewage and are received by the receiver of the radiometric densitometer 4. By comparing the emitted radiation intensity with the received radiation intensity, the sludge concentration of the sewage can be measured. The radiometric densitometer 4 feeds back the detection results to the microprocessor 102 in the control box 1 for processing. The microprocessor 102 controls and adjusts the speed of the AC variable frequency motor 5 through the composite cable 104 according to the detected data and the set reference parameters. This adjusts the speed of the AC variable frequency motor 5 driven by the transmission shaft 8 through the gearbox 6, thereby regulating the rotational thrust of the push fan 9.

[0027] In this specification, the terms "connection," "installation," "fixing," and "setting" are interpreted broadly. For example, "connection" can mean a fixed connection or an indirect connection via an intermediate component without affecting the relationship between components and the technical effect. It can also mean an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this utility model or utility model according to the specific circumstances. In this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this utility model and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation or to be constructed and operated in a specific orientation. Finally, it should be noted that when describing the position of each component and the matching relationship between them, this utility model usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions and matching relationships also apply to other components / other pairs of components.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A submersible push-flow device for intelligent adjustment of thrust based on sensed sludge concentration, characterized by: The device includes an AC variable frequency motor (5), one side of which is electrically connected to an electrical control box (1). The electrical control box (1) is electrically connected to an external electrical control device via a terminal block (2). A hollow rod (3) is installed on the side of the electrical control box (1), and a radioactivity density meter (4) is installed at the end of the hollow rod (3). The AC variable frequency motor (5) is connected to a drive shaft (8) via a gearbox (6), and multiple push fans (9) are installed on the drive shaft (8). The electrical control box (1) includes a sealed outer shell (101). A microprocessor (102) electrically connected to the terminal block (2) is provided at the top inside the sealed outer shell (101). The microprocessor (102) is electrically connected to the radioactivity density meter (4) through a composite cable (104) laid inside the hollow rod (3). The microprocessor (102) is electrically connected to the AC variable frequency motor (5) through a motor speed controller (103).

2. The submersible flow inducer of claim 1, wherein: The propulsion fan (9) is provided with a flow guide (7) on its exterior, and the flow guide (7) is fixedly connected to the gearbox (6) housing by a fixing bracket (10).

3. The submersible jet thruster with intelligent thrust adjustment based on sludge concentration as described in claim 1, characterized in that: The number of radioactive density meters (4) is not less than two, and multiple radioactive density meters (4) are evenly distributed around the electrical control box (1). The radioactive density meters (4) are fixedly connected to the housing of the electrical control box (1) through the hollow rod (3).

4. The submersible jet thruster with intelligent thrust adjustment based on sludge concentration as described in claim 1, characterized in that: The sealing shell (101) is made of copper, and the surface of the sealing shell (101) is treated with anti-rust treatment.

5. The submersible jet thruster with intelligent thrust adjustment based on sludge concentration as described in claim 1, characterized in that: The hollow rod (3) is made of titanium alloy and the inner wall of the hollow rod (3) is coated with insulating paint.

6. The submersible jet thruster with intelligent thrust adjustment based on sludge concentration as described in claim 2, characterized in that: The air deflector (7) is made of fiberglass.

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