Data acquisition device for fluid transportation

Abstract

The utility model discloses a data acquisition device for fluid transportation, and relates to the field of fluid transportation equipment, the data acquisition device comprises a shell, a sensor group, an impeller shaft, an impeller, a power generation mechanism and an elastic arc plate; conveyed fluid flows through the hollow channel in the shell and drives the impeller to rotate, so that the power generation mechanism can generate electric energy and supply power to the sensor group and all electric equipment, the problem that outdoor or field power utilization is limited is solved, meanwhile, the sensor group can obtain physical parameters of the conveyed fluid, and the quality of the conveyed fluid can be known conveniently; on the other hand, the elastic arc plate is pressed down when the flow is increased, so that the sectional area of an overflowing opening formed between the elastic arc plate and the impeller is increased, fluid conveyed to a user side is prevented from being decreased, and unstable power generation caused by sudden increase of the rotating speed when the flow of the fluid is increased can be avoided; deformation adjustment can be carried out according to the fluid flow, the rotating speed of the impeller can be uniform, and the generating capacity is stable.

Description

Technical Field

[0001] This application relates to the field of fluid conveying equipment, and particularly to a data acquisition device for fluid conveying. Background Art

[0002] During the process of fluid (such as tap water, gas, etc.) conveying, it is often necessary to collect the parameters during the conveying process and upload them to an external system. For example, pressure parameters, flow parameters, mass parameters of the fluid, etc. are collected through various sensors. However, due to the power supply limitations in the wild or outdoors, it is impossible to supply power to these sensors or other electrical equipment. In the prior art, there are the following power supply methods: 1. Built-in disposable batteries. Affected by the battery life, the set acquisition and upload frequency is often relatively low. If the acquisition frequency is set high, the battery needs to be replaced frequently, and the battery and the labor cost of replacing the battery are high; 2. Solar energy and wind energy are affected by the environmental geographical location, resulting in unstable power generation and unable to meet the needs of electrical equipment; 3. Municipal power can meet various power consumption requirements, but due to reasons such as geographical location, wiring requirements, and complex procedures for handling formalities, it is more troublesome to install municipal power. Summary of the Utility Model

[0003] The embodiment of this application provides a data acquisition device for fluid conveying, which can collect the physical parameters during the fluid conveying process and can also solve the problem of outdoor power consumption.

[0004] This application provides a data acquisition device for fluid conveying, including a housing, a sensor group, an impeller shaft, an impeller, a power generation mechanism, and an elastic arc plate; the housing has a hollow channel, and the external fluid pipelines are respectively communicated with the two open ends of the hollow channel; the sensor group is arranged in the hollow channel for detecting the physical parameters of the fluid; the impeller shaft is arranged in the hollow channel, and the axial direction of the impeller shaft is perpendicular to the fluid conveying direction; the impeller is located in the hollow channel and is arranged on the impeller shaft; the elastic arc plate is arranged below the impeller, and an overflow port is formed between the elastic arc plate and the impeller in the height direction; the power generation mechanism is connected to the impeller shaft for generating electricity, and the power generation mechanism is electrically connected to the sensor group.

[0005] The data acquisition device for fluid conveying of this application has at least the following beneficial effects:

[0006] The data acquisition device of the present application includes a housing, a sensor group, an impeller shaft, an impeller, a power generation mechanism, and an elastic arc plate; in the present application, the fluid to be conveyed flows through the hollow channel inside the housing and drives the impeller to rotate, enabling the power generation mechanism to generate electric energy and supply power to the sensor group and various electrical equipment, solving the problem of limited power supply outdoors or in the wild. At the same time, the sensor group can obtain the physical parameters of the fluid to be conveyed, facilitating the understanding of the quality of the fluid to be conveyed; on the other hand, the elastic arc plate designed in the present application is pressed down when the fluid flow rate increases, increasing the cross-sectional area of the flow-through port formed between it and the impeller, avoiding a decrease in the fluid flow rate delivered to the user end, and also avoiding sudden increases in the impeller speed when the fluid flow rate increases, resulting in unstable power generation. That is, the elastic arc plate can deform and adjust according to the size of the fluid flow rate, enabling the impeller speed to be uniform and the power generation to be stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0008] Figure 1 is a structural diagram of the data acquisition device of the present application;

[0009] Figure 2 is Figure 1 a schematic diagram of the data acquisition device with the side plate of the housing hidden;

[0010] Figure 3 is Figure 2 a front view of

[0011] Figure 4 is another structural diagram of the data acquisition device (with the protective cover hidden);

[0012] Figure 5 is Figure 4 an enlarged view of part A in

[0013] Figure 6 is a partial structural diagram of the power generation mechanism of the present application;

[0014] Figure 7 is a schematic diagram of the power supply principle of the power generation mechanism in the present application;

[0015] The descriptions of the reference numerals are as follows:

[0016] 10. Housing; 10a. Hollow channel; 10b. Opening; 10c. Flow-through port;

[0017] 20. Impeller shaft;

[0018] 30. Impeller;

[0019] 40. Power generation mechanism; 41. Bracket; 42. Stator; 42a. Stator slot; 43. Rotor; 43a. Rotor slot; 44. Protective cover;

[0020] 50. Elastic arc plate; 51. Flat plate section; 52. Arc plate section; 53. Bottom plate section. Detailed implementation manners

[0021] The features and exemplary embodiments of various aspects of the present application will be described in detail below. To make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than limiting the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0022] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the elements.

[0023] As Figure 1 shown, this embodiment discloses a data acquisition device for fluid transportation, which can be used to acquire data during fluid transportation. It should be noted that the data acquisition device in this embodiment can also be used to acquire relevant data when transporting other fluids or gases. This embodiment is described by taking the transportation of tap water as an example, that is, the fluid in this embodiment is configured as tap water.

[0024] As Figure 2 shown, the data acquisition device includes a housing 10, a sensor group, an impeller shaft 20, an impeller 30, a power generation mechanism 40, an elastic arc plate 50, a collector and a data transmission unit, specifically as follows:

[0025] As Figure 2As shown, the shell 10 has a hollow channel 10a inside, and the hollow channel 10a is configured as a rectangular channel, that is, the cross-sectional shape of the hollow channel 10a is rectangular or nearly rectangular, and openings 10b connected to the hollow channel 10a are provided at both axial ends of the shell 10, and two sections of external fluid pipelines are respectively connected to the two openings 10b of the shell 10, and the transported fluid flows through the hollow channel 10a to the user end.

[0026] The sensor group is arranged in the hollow channel 10a, and is used to detect the physical parameters of the transported fluid. The material parameters include flow rate, pressure and fluid quality (i.e., water quality). In addition, the sensor assembly may include other sensors, such as a sensor for measuring flow rate, etc. In this embodiment, the sensor group includes a fluid pressure sensor, a quality sensor (such as a TDS sensor), and a flow sensor, all of which are arranged in the hollow channel 10a.

[0027] like Figure 3 As shown, the impeller shaft 20 is rotatably arranged in the hollow channel 10a through a bearing, the axial direction of the impeller shaft 20 is perpendicular to the conveying direction of the fluid (perpendicular in the fluid plane), and one end of the impeller shaft 20 is away from the hollow channel 10a, passes through the shell 10 and extends to the outside of the shell 10 (to facilitate subsequent connection with the power generation mechanism 40). It should be noted that this end of the impeller shaft 20 passing through the shell 10 needs to be sealed with the shell 10 to prevent the fluid from leaking out from here.

[0028] like Figure 3 As shown, the impeller 30 is located in the hollow channel 10a, and the impeller 30 is coaxially fixedly connected with the impeller shaft 20. When fluid flows in the hollow channel 10a, the impeller 30 is driven by the fluid to rotate, thereby driving the impeller shaft 20 to rotate, and the impeller shaft 20 then drives the power generation mechanism 40 to generate electricity. Among them, in the axial direction of the impeller shaft 20, there is a gap between the end faces on both sides of the impeller 30 and the fluid-flat inner wall of the hollow channel 10a, and the gap does not exceed 10mm, and preferably the gap does not exceed 2mm. The gap is designed to be no more than 10mm here in order to avoid the fluid from flowing through the gap position as much as possible, so that the power of the fluid flow can be converted into the force for the rotation of the impeller 30, and at the same time, the impeller 30 can be better stressed.

[0029] like Figures 4 to 6As shown, the power generation mechanism 40 includes a bracket 41, a stator 42, a rotor 43, a rectification unit, and a battery. The bracket 41 is fixedly arranged on the outer side wall of the housing 10, and the bracket 41 is coaxially arranged with the impeller shaft 20 (the impeller shaft 20 and the bracket 41 are connected by bearings); the stator 42 is coaxially and fixedly arranged on the bracket 41, the rotor 43 is coaxially and spaced from the stator 42, and the rotor 43 is coaxially and fixedly connected to the impeller shaft 20. The rectification unit is electrically connected to the stator 42, the battery is electrically connected to the rectification unit, and the battery is respectively electrically connected to each sensor of the sensor group, thereby realizing power supply. In this embodiment, a wire passing hole can be opened on the housing 10, and the battery is connected to each sensor through a wire passing through the wire passing hole. The position of the wire passing hole needs to be sealed to avoid fluid leakage.

[0030] The principle of the power generation mechanism 40 in this embodiment is: when the impeller shaft 20 rotates, the rotor 43 rotates with the impeller shaft 20 and cooperates with the stator 42 to cut the magnetic induction lines, thereby causing the stator 42 to generate three-phase alternating current. The three-phase alternating current is rectified by the rectification unit to output direct current, and then the direct current is used to charge the battery.

[0031] Preferably, as Figure 7 shown, a power protection board can be electrically connected between the rectification unit and the battery, which can protect the battery during charging (to avoid overcharging). On the other hand, a corresponding boost supply unit or buck supply unit can be arranged between the battery and the electrical equipment, and the battery supplies power to the corresponding electrical equipment through the boost supply unit or buck supply unit.

[0032] As Figure 6 shown, the stator 42 is made of an insulating material (such as ceramics, PE, etc.) and is integrally in a disc shape. A plurality of stator slots 42a are arranged at equal intervals along the circumferential direction of the end face of the stator 42, and coils are correspondingly arranged in the stator slots 42a. The coils are electrically connected to the rectification unit. Among them, a filling glue (such as epoxy resin) is arranged between the coils and the inner peripheral wall of the stator slots 42a. In this embodiment, after the coils are placed in the stator slots 42a, epoxy resin is injected into the stator slots 42a, thereby sealing and protecting the coils.

[0033] As Figure 6 shown, the overall shape of the rotor 43 is in a disc shape. A plurality of rotor slots 43a are arranged at equal intervals along the circumferential direction of the end face of the rotor 43, and permanent magnets are correspondingly arranged in the rotor slots 43a. In this embodiment, the permanent magnets cut the magnetic field generated by the coils, thereby realizing power generation.

[0034] As Figure 1As shown, in some preferred embodiments, the power generation mechanism 40 further includes a protective cover 44. The protective cover 44 is fixedly connected to the outer sidewall of the housing 10. The protective cover 44 is used to cover structures such as the bracket 41, the stator 42, and the rotor 43 outside the housing 10, playing a role of protection.

[0035] The collector is communicatively connected to the sensor group, and the data transmission unit is communicatively connected to the collector and the external system respectively; the power generation mechanism is connected to the collector and the data sensor unit respectively.

[0036] The collector is arranged outside the housing 10 and is located inside the protective cover 44. The collector is communicatively connected to each sensor of the sensor group. The collector is used to collect the data detected by each sensor, including flow data, fluid pressure data, and fluid mass data, etc. The data transmission unit (such as a 4G or NB-IOT remote module) is arranged outside the housing 10 and is located inside the protective cover 44. The data transmission unit is communicatively connected to the collector and is communicatively connected to the external system. In this embodiment, the data collected by the collector is sent to the external system through the data transmission unit.

[0037] Preferably, as Figure 7 shown, the battery is electrically connected to the collector and the data transmission unit respectively, and the collector and the data transmission unit are powered by the battery respectively.

[0038] As Figure 2 and Figure 3 shown, the elastic arc plate 50 is arranged in the hollow channel 10a. The elastic arc plate 50 is located below the impeller 30. The elastic arc plate 50 and the impeller 30 form a flow-through opening 10c in the height direction, and the elastic arc plate 50 extends along the fluid conveying direction. When the fluid flow rate in the hollow channel 10a increases, the elastic arc plate 50 is pressed and deformed by the fluid, so that the cross-sectional area of the flow-through opening 10c increases. When the flow rate decreases, the elastic arc plate 50 immediately returns upward to its initial shape.

[0039] As Figure 2 and Figure 3 shown, the elastic arc plate 50 of this embodiment can play a role in guiding the fluid, guiding the fluid upward to the position of the impeller 30 and pushing the impeller 30 to rotate and generate electricity. However, this may cause a problem, that is, it will hinder the fluid flow, making the fluid flow rate of the end user smaller. To solve this problem, the elastic arc plate 50 is made of an elastic material in this embodiment. The elastic arc plate 50 can be pressed and deformed accordingly with the size of the fluid flow rate. On the one hand, it can increase the cross-section of the flow-through opening 10c so that the fluid flow rate of the end user will not become smaller. On the other hand, the rotation speed of the impeller 30 will not increase due to the sudden increase in the fluid flow rate, which can ensure the stability of power generation.

[0040] AsFigure 2 and Figure 3 As shown in Figure 3 , the elastic arc plate 50 includes a flat plate section 51 and an arc plate section 52 which are connected to each other; the flat plate section 51 is connected within the hollow channel 10a, and the plate surface of the flat plate section 51 has a preset angle θ with the fluid conveying direction; the preset angle θ is between 15 degrees and 80 degrees, and in some preferred embodiments, the preset angle θ is between 30 degrees and 50 degrees, which can more effectively guide the fluid to the position of the impeller 30, and at the same time will not cause a great hindrance to the fluid flow rate. The convex surface of the arc plate section 52 is located below the impeller 30, and the through-flow port 10c is formed between the convex surface and the impeller 30. The radian of the arc plate section 52 is selected according to the actual situation.

[0041] In some preferred embodiments, the flat plate section 51 and the arc plate section 52 are integrally formed, and the structural performance is better. Among them, in the axial direction of the impeller shaft 20, there are gaps between the side surfaces of the flat plate section 51 and the arc plate section 52 and the inner side wall of the hollow channel 10a, and the gap does not exceed 10 mm, such as 2 mm. The purpose of such a design is to guide the fluid to the impeller 30 as much as possible, and at the same time prevent the fluid from slipping away from this gap position.

[0042] In this embodiment, as Figure 2 and Figure 3 shown, the elastic arc plate 50 further includes a bottom plate section 53, the bottom plate section 53 is attached to the inner bottom surface of the hollow channel 10a, and one end of the flat plate section 51 far from the arc plate section 52 is connected to the bottom plate section 53. Preferably, the flat plate section 51, the arc plate section 52 and the bottom plate section 53 are integrally formed.

[0043] The data acquisition device in this embodiment can collect various physical parameters during the fluid transportation through each sensor and send them to an external system. Among them, in this embodiment, the rotation of the impeller shaft 20 can be detected by a Hall sensor arranged on the bracket 41 or the stator 42, so as to judge whether the end user steals fluid (steals water) or leaks fluid (leaks water). Specifically, when it is in the low water consumption period (such as early morning), the water meter of the end user does not rotate, but the rotation speed of the impeller shaft 20 exceeds a predetermined value (set according to the actual situation), which means that there is still a certain amount of fluid being transported to the user terminal during the low peak period, but it is not shown on the water meter of the user, indicating that there is a situation of stealing water and leaking water, that is, the device in this embodiment can be used to mutually verify with the water meter of the user terminal to judge whether there is a situation of stealing water and leaking water.

[0044] As described above, this is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A data acquisition device for fluid transportation, characterized in that: It comprises a housing (10), a sensor group, an impeller shaft (20), an impeller (30), a power generation mechanism (40) and an elastic arc plate (50); The housing (10) has a hollow channel (10a), and external fluid pipelines are respectively connected to openings (10b) at both ends of the hollow channel (10a); The sensor group is arranged in the hollow channel (10a) and is used to detect the physical parameters of the fluid; The impeller shaft (20) is arranged in the hollow channel (10a), and the axial direction of the impeller shaft (20) is perpendicular to the fluid conveying direction; The impeller (30) is located in the hollow channel (10a) and is arranged on the impeller shaft (20); The elastic arc plate (50) is arranged below the impeller (30), and the elastic arc plate (50) and the impeller (30) form a flow opening (10c) in the height direction; The power generation mechanism (40) is connected to the impeller shaft (20) for generating electricity, and the power generation mechanism (40) is electrically connected to the sensor group.

2. The data acquisition device according to claim 1, characterized in that: The elastic arc plate (50) comprises a flat plate segment (51) and an arc plate segment (52) which are connected to each other; the flat plate segment (51) is connected to the hollow channel (10a), and the flat plate segment (51) has a preset angle θ with the fluid conveying direction; the preset angle θ is between 15 degrees and 80 degrees; the outer convex surface of the arc plate segment (52) is located below the impeller (30), and forms the flow port (10c) between the arc plate segment and the impeller (30).

3. The data acquisition device according to claim 2, characterized in that: The preset angle θ is 40 degrees to 60 degrees.

4. The data acquisition device according to claim 2, characterized in that: The flat plate segment (51) and the arc plate segment (52) are integrally formed.

5. The data acquisition device according to claim 1, characterized in that: The hollow channel (10a) is configured as a rectangular channel; in the axial direction of the impeller shaft (20), the gap between the side surface of the elastic arc plate (50) and the fluid-level inner wall of the hollow channel (10a) and the gap between the end surface of the impeller (30) and the fluid-level inner wall of the hollow channel (10a) are both no more than 10 mm.

6. The data acquisition device according to claim 1, characterized in that: The sensor group comprises a fluid pressure sensor, a mass sensor and a flow sensor, all of which are connected to the power generation mechanism (40); the mass sensor is used to detect the mass of the fluid.

7. The data acquisition device according to claim 1, characterized in that: The power generation mechanism (40) comprises a bracket (41), a stator (42), a rotor (43), a rectifier unit and a battery; The bracket (41) is arranged on the outside of the housing (10); the stator (42) is arranged on the bracket (41); the rotor (43) corresponds to the stator (42) coaxially; the impeller shaft (20) passes through the stator (42) and the rotor (43) coaxially in sequence, and the impeller shaft (20) is fixedly connected to the rotor (43); the rectifier unit is connected to the stator (42); the battery is connected to the rectifier unit, and the battery is electrically connected to the sensor group, so as to supply power to the sensor group.

8. The data acquisition device according to claim 7, characterized in that: The stator (42) is provided with a plurality of stator slots (42a) along its circumference, a coil is provided in the stator slot (42a), and a filling glue is provided between the coil and the inner circumferential wall of the stator slot (42a); the coil is connected to the rectifier unit.

9. The data acquisition device according to claim 7, characterized in that: The rotor (43) is provided with a plurality of rotor slots (43a) along its circumferential direction, and permanent magnets are arranged in the rotor slots (43a).

10. The data acquisition device according to any one of claims 1 to 9, characterized in that: It also includes a collector and a data transmission unit; the collector is communicatively connected to the sensor group, and the data transmission unit is communicatively connected to the collector and the external system respectively; the power generation mechanism (40) is respectively connected to the collector and the data sensor unit.

Images