Pipeline circulating water monitoring device

Abstract

The invention relates to the technical field of pipeline sensing, in particular to a pipeline circulating water monitoring device which comprises a connecting pipeline, a kinetic energy sensor, an electromagnetic sensor and a controller. The kinetic energy sensor and the electromagnetic sensor are both nested in a pipeline of the connecting pipeline, the kinetic energy sensor and the electromagnetic sensor are located on the front portion and the rear portion of the connecting pipeline respectively, detection channels of the kinetic energy sensor and the electromagnetic sensor are both communicated with the connecting pipeline, and the controller is electrically connected with the kinetic energy sensor and the electromagnetic sensor; when fluid flows through the kinetic energy sensor, the rotating mechanism of the kinetic energy sensor is pushed to rotate, and the kinetic energy sensor feeds back the rotating speed of the rotating mechanism to the controller; when fluid flows through the electromagnetic sensor, the electromagnetic sensor feeds back the flow to the controller through electromagnetic induction; the problems that a traditional pipeline fluid detection method is large in signal noise and the condition of circulating water in a pipeline cannot be distinguished more carefully are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline sensing, and in particular to a pipeline circulating water monitoring device. Background Art

[0002] In the field of industrial production, the circulating water system is one of the core infrastructures to ensure the safe operation of equipment. Especially in high-energy-consuming industries such as ceramics, power, and chemical engineering, circulating water undertakes key functions such as equipment cooling, lubrication, and heat transfer. Taking ceramic production as an example, core equipment such as kiln furnace fans and press hot circulation systems rely on stable circulating water to achieve continuous cooling. If the circulating water flow drops suddenly or the flow is cut off, it will lead to a chain reaction such as overheating of bearings and damage to pump bodies. For example, if the bearing temperature of the kiln furnace fan exceeds the threshold and is not dealt with in time, it may cause equipment shutdown or even fire accidents, resulting in significant economic losses.

[0003] Traditional circulating water monitoring mainly relies on manual inspections combined with basic instruments such as mechanical flow meters and pressure gauges, which have problems such as response lag and data isolation. Although some enterprises have adopted electronic flow sensors or pressure transmitters, their functions are limited to single-point data acquisition, and there is a lot of signal noise (sometimes there is still signal feedback from the residual fluid after the flow is cut off), lacking the intelligent analysis ability for the dynamic changes of the flow rate and being unable to effectively identify the risks of gradual blockage or sudden flow interruption. Summary of the Invention

[0004] In view of the above defects, the purpose of the present invention is to provide a pipeline circulating water monitoring device, which solves the problems of a lot of signal noise in the traditional pipeline fluid detection method and the inability to more carefully distinguish the situation of circulating water in the pipeline.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A pipeline circulating water monitoring device includes a connecting pipeline, a kinetic energy sensor, an electromagnetic sensor, and a controller; the kinetic energy sensor and the electromagnetic sensor are both nested inside the pipeline of the connecting pipeline, the kinetic energy sensor and the electromagnetic sensor are respectively located at the front and rear of the connecting pipeline, the detection channels of the kinetic energy sensor and the electromagnetic sensor are both communicated with the connecting pipeline, and the controller is electrically connected to the kinetic energy sensor and the electromagnetic sensor respectively;

[0007] When a fluid flows through the kinetic energy sensor, it pushes the rotating mechanism of the kinetic energy sensor to rotate, and the kinetic energy sensor feeds back the rotation speed of the rotating mechanism to the controller;

[0008] When a fluid flows through the electromagnetic sensor, the electromagnetic sensor feeds back the flow rate to the controller through electromagnetic induction.

[0009] Further, the kinetic energy sensor includes a first cylindrical housing, a flow splitting mechanism, and a rotating conductor mechanism; a first magnetic assembly is provided inside the housing of the first cylindrical housing, and the first magnetic assembly is used to generate a magnetic field inside the cylinder of the first cylindrical housing;

[0010] The rotating conductor mechanism is arranged inside the cylinder of the first cylindrical housing, and the flow splitting mechanism is arranged in front of the first cylindrical housing; the flow splitting mechanism is used to split and introduce the fluid into the cylinder of the first cylindrical housing, and uniformly impact and push the rotating conductor mechanism;

[0011] The electromagnetic sensor includes a second cylindrical housing and two electrode rings; a second magnetic assembly is provided inside the housing of the second cylindrical housing, and the second magnetic assembly is used to generate a magnetic field inside the cylinder of the second cylindrical housing;

[0012] The two electrode rings are respectively arranged at the front end and the rear end of the second cylindrical housing;

[0013] The controller is electrically connected to the rotating conductor mechanism and the electrode rings respectively.

[0014] Further, the rotating conductor mechanism is an axial flow fan blade assembly, the flow splitting mechanism is a cone structure with the cone tip in front, and there is an inflow interval between the cone bottom of the flow splitting mechanism and the inner wall of the cylinder of the first cylindrical housing, and the inflow interval is opposite to the blade end of the rotating conductor mechanism.

[0015] Further, the rotating conductor mechanism includes a rotating shaft conductor and a plurality of blade conductors; the rotating shaft conductor is rotatably arranged at the center inside the cylinder of the first cylindrical housing, and the plurality of blade conductors are arranged at intervals along the rotation direction of the rotating shaft conductor, and one end of the blade conductor is fixedly connected to the rotating shaft conductor;

[0016] At least one support column extends towards the center of the cylinder at the front side and the rear side of the first cylindrical housing; the end of the support column is axially connected to the rotating shaft conductor;

[0017] Each of the front side and the rear side of the first cylindrical housing has a support column with a first electrical connection channel formed therethrough, and the first electrical connection channel is used for a first conductive member to pass through and electrically connect the rotating shaft conductor and the controller.

[0018] Further, the rotating conductor mechanism includes a rotating shaft conductor, a hub conductor, and a plurality of blade conductors; the rotating shaft conductor is fixedly arranged at the center inside the cylinder of the first cylindrical housing, and the plurality of blade conductors are arranged around the outer peripheral surface of the hub conductor, and the hub conductor is rotatably connected to the rotating shaft conductor;

[0019] On both the front side and the rear side of the first cylindrical outer shell, at least one support column extends towards the center of the cylinder; the end of the support column is fixedly connected to the rotating shaft conductor;

[0020] On the front side and the rear side of the first cylindrical outer shell, each has a support column through which a first electrical connection channel is opened. The first electrical connection channel is used for a first conductive member to pass through and electrically connect the rotating shaft conductor and the controller.

[0021] Furthermore, the first magnetic assembly includes a plurality of third magnetic members. The plurality of third magnetic members are arranged around the inner side wall of the first cylindrical outer shell, and the opposite sides of the relatively arranged third magnetic members are set to have opposite polarities.

[0022] Furthermore, the second magnetic assembly is arranged in the middle of the second cylindrical outer shell. At the front end and the rear end of the second magnetic assembly in the second cylindrical outer shell, recesses are respectively formed towards the inside of the cylinder to form electrode limiting grooves, and the electrode ring is nested in the electrode limiting grooves.

[0023] Furthermore, at least one electrode through hole is opened on the side wall of the electrode limiting groove. The electrode ring is provided with electrode bumps corresponding to the electrode through holes, and the electrode bumps and the electrode through holes are fitted and connected.

[0024] Furthermore, the second magnetic assembly includes a first magnetic member and a second magnetic member; the inner space on the left side of the second cylindrical outer shell bulges towards the inside of the cylinder for arranging the first magnetic member; the inner space on the right side of the second cylindrical outer shell bulges towards the inside of the cylinder for arranging the second magnetic member; a magnetic field is generated between the first magnetic member and the second magnetic member.

[0025] Furthermore, airtight fixing members or airtight fixing structures are provided on the outer peripheral sides of the first cylindrical outer shell and the second cylindrical outer shell.

[0026] The technical solution provided by the present invention may include the following beneficial effects: After the connecting pipe (such as a flange pipe) is installed into the pipeline of the pipeline system, through the collaborative layout of a kinetic energy sensor in the front and an electromagnetic sensor in the back inside the connecting pipe, two-dimensional monitoring of the flow change trend is realized. Among them, the kinetic energy sensor is based on the principle of driving a rotating mechanism by the kinetic energy of the fluid machinery, and its sensitivity is relatively low compared with the electromagnetic sensor, which is beneficial to judging whether the fluid is cut off; the electromagnetic sensor is based on the principle of electromagnetic induction, which is beneficial to sensitively monitoring the flow rate of the fluid; therefore, the combination of the data of the two, after being compared in real time by a controller (such as an MCU), can accurately identify progressive blockage (based on the fact that the front end is kinetic energy detection and the rotating mechanism plays a blocking role when the kinetic energy is insufficient, when there is progressive blockage, the flow rate difference between the front and rear ends will continue to increase) and sudden flow interruption (after the flow is interrupted, the kinetic energy of the fluid is insufficient, unable to drive the rotating mechanism to rotate, and is blocked by the rotating mechanism, and there is no fluid flowing through the electromagnetic sensor at the back end, so neither sensor gives feedback, and the fluid flow interruption can be instantly judged without signal noise), with the false alarm rate reduced by 67% compared with single-point monitoring (experimental data). More importantly, the combined monitoring data of kinetic energy and electromagnetic induction can also expand the monitoring of the fluid situation in complex pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a pipeline circulating water monitoring device according to one embodiment of the present invention.

[0028] Figure 2 is as Figure 1 shown in the structural schematic of the kinetic energy sensor Figure 1 .

[0029] Figure 3 is as Figure 1 shown in the rear view of the kinetic energy sensor.

[0030] Figure 4 is as Figure 1 shown in the right view and front view of the kinetic energy sensor.

[0031] Figure 5 is as Figure 1 shown in the structural schematic of the kinetic energy sensor Figure 2 .

[0032] Figure 6 is as Figure 1 shown in the partial assembly drawing of the electromagnetic sensor.

[0033] Figure 7 is as Figure 1 shown in the front view of the electromagnetic sensor.

[0034] Among them: connecting pipe A, kinetic energy sensor B, electromagnetic sensor C, controller D, first cylindrical housing 1B, flow splitting mechanism 2B, rotating conductor mechanism 3B, first magnetic component 11B, inflow interval 4B, rotating shaft conductor 31B, blade conductor 32B, support column 12B, first electrical connection channel 121B, second electrical connection channel 111B, second cylindrical housing 1C, electrode ring 2C, second magnetic component 11C, electrode limit groove 12C, electrode through hole 121C, electrode bump 21C, first magnetic piece 111C, second magnetic piece 112C, electrical connection channel 13C. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features, used to distinguish and describe features, without order or importance.

[0037] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0039] The following combines Figures 1 to 7 , to describe a pipeline circulating water monitoring device according to an embodiment of the present invention.

[0040] A pipeline circulating water monitoring device, comprising a connecting pipeline A, a kinetic energy sensor B, an electromagnetic sensor C and a controller D; the kinetic energy sensor B and the electromagnetic sensor C are both nested inside the pipeline of the connecting pipeline A, the kinetic energy sensor B and the electromagnetic sensor C are respectively located at the front and rear of the connecting pipeline A, the detection channels of the kinetic energy sensor B and the electromagnetic sensor C are both communicated with the connecting pipeline A, and the controller D is electrically connected to the kinetic energy sensor B and the electromagnetic sensor C respectively;

[0041] When a fluid flows through the kinetic energy sensor B, it drives the rotating mechanism of the kinetic energy sensor B to rotate, and the kinetic energy sensor B feeds back the rotation speed of the rotating mechanism to the controller D;

[0042] When a fluid flows through the electromagnetic sensor C, the electromagnetic sensor C feeds back the flow rate to the controller D through electromagnetic induction.

[0043] In a preferred embodiment of the pipeline circulating water monitoring device proposed by the present invention, as Figure 1 shown, after the connecting pipeline A (such as a flange pipeline) is installed into the pipeline of the pipeline system, through the collaborative layout of the kinetic energy sensor B at the front and the electromagnetic sensor C at the rear inside the pipeline of the connecting pipeline A, the two-dimensional monitoring of the flow rate change trend is realized. Among them, the kinetic energy sensor B is based on the principle of driving the rotating mechanism by the kinetic energy of the fluid machinery, and its sensitivity is relatively low compared with the electromagnetic sensor C, which is beneficial to judging whether the fluid is cut off; the electromagnetic sensor C is based on the principle of electromagnetic induction, which is beneficial to keenly monitoring the flow rate of the fluid; therefore, the combination of the two data, after being compared in real time by the controller D (such as an MCU), can accurately identify progressive blockage (based on the front-end kinetic energy detection and the rotating mechanism playing a blocking role when the kinetic energy is insufficient, during progressive blockage, the flow rate gap between the front and rear ends will continue to increase) and sudden interruption of flow (after the interruption of flow, the kinetic energy of the fluid is insufficient, unable to drive the rotating mechanism to rotate and is blocked by the rotating mechanism, and there is no fluid flowing through the electromagnetic sensor C at the rear end, so neither sensor gives feedback, and the interruption of fluid flow can be instantly judged without signal noise), with the false alarm rate reduced by 67% compared with single-point monitoring (experimental data). More importantly, the combined monitoring data of kinetic energy and electromagnetic induction can also expand the monitoring of the fluid situation in complex pipelines.

[0044] Furthermore, the kinetic energy sensor B includes a first cylindrical outer shell 1B, a flow splitting mechanism 2B and a rotating conductor mechanism 3B; a first magnetic assembly 11B is provided inside the shell of the first cylindrical outer shell 1B, and the first magnetic assembly 11B is used to generate a magnetic field inside the cylinder of the first cylindrical outer shell 1B;

[0045] The rotating conductor mechanism 3B is arranged inside the cylinder of the first cylindrical outer shell 1B, and the flow splitting mechanism 2B is arranged in front of the first cylindrical outer shell 1B; the flow splitting mechanism 2B is used to split the fluid and introduce it into the cylinder of the first cylindrical outer shell 1B, and uniformly impact and push the rotating conductor mechanism 3B;

[0046] The electromagnetic sensor C includes a second cylindrical housing 1C and two electrode rings 2C; a second magnetic assembly 11C is provided inside the housing of the second cylindrical housing 1C, and the second magnetic assembly 11C is used to generate a magnetic field inside the cylinder of the second cylindrical housing 1C;

[0047] The two electrode rings 2C are respectively arranged at the front end and the rear end of the second cylindrical housing 1C;

[0048] The controller D is electrically connected to the rotating conductor mechanism 3B and the electrode ring 2C respectively.

[0049] In this embodiment, as Figure 2 and 6 shown, in order to enable the kinetic energy sensor B and the electromagnetic sensor C to have their detection channels communicate with the connecting pipe A after being nested in the pipe of the connecting pipe A, a cylindrical housing design is uniformly adopted, which is convenient for direct inlay integration into the pipe to achieve real-time and continuous circulating water monitoring without relying on pressure fluctuations or manual intervention.

[0050] Among them, the kinetic energy sensor B is a linkage design of the magnetic field generated by the first magnetic assembly 11B in the first cylindrical housing 1B and the rotating conductor mechanism 3B. When the fluid continuously impacts and pushes the rotating conductor mechanism 3B, the rotating conductor mechanism 3B can cut the magnetic induction lines of the magnetic field to generate an electrical signal, so as to judge whether the fluid in the pipe is interrupted; therefore, using the kinetic energy of the fluid to judge whether there is an interruption can avoid the misjudgment problem caused by the residual flow after the fluid is interrupted (the residual flow after the interruption is blocked by the rotating conductor mechanism 3B and cannot push the rotating conductor mechanism 3B to rotate), improving the accuracy of the interruption judgment. More importantly, through the flow splitting mechanism 2B, it is ensured that the fluid uniformly impacts and pushes the rotating conductor mechanism 3B, improving the detection sensitivity, especially suitable for complex working conditions such as viscous media or gas-liquid two-phase flows; for example, the flow splitting mechanism 2B can be composed of a structure in which a front main pipe is dispersed into multiple rear branch pipes, so as to disperse the main fluid into multiple branch fluids and uniformly guide them to the rotating conductor mechanism 3B, so that the rotating conductor mechanism 3B rotates under uniform impact.

[0051] In addition, for the electromagnetic sensor C, by arranging electrode rings 2C at the front end and the rear end of the magnetic field inside the cylinder of the second cylindrical housing 1C, the fluid in the pipe can contact the electrode rings 2C from the inflow side and the outflow side respectively (specially adapted to the fluid split and output by the flow splitting mechanism 2B and fully contact the electrode ring 2C on the inflow side). Thus, when the fluid is not interrupted, the annular electrode can always contact the fluid cutting the magnetic induction lines to form a closed loop, and the generated electrical signal (such as electromotive force) is fed back to the controller outside the pipe for identification, ensuring the continuity of the signal; at the same time, when the fluid is interrupted, it is very likely to only contact one of the electrode rings 2C, so that an electrode ring 2C - fluid - electrode ring 2C closed loop cannot be formed, and no electrical signal can be fed back, further removing signal noise.

[0052] Furthermore, the rotating conductor mechanism 3B is an axial flow fan blade assembly, and the flow splitting mechanism 2B is a cone structure with the cone tip in the front. There is an inflow gap 4B between the cone bottom of the flow splitting mechanism 2B and the inner wall of the cylindrical first cylindrical housing 1B, and the inflow gap 4B faces the blade end of the rotating conductor mechanism 3B.

[0053] In this embodiment, as Figures 3 to 5 shown, to enable the flow splitting mechanism 2B to split and introduce the fluid into the cylinder of the first cylindrical housing 1B, uniformly impact and push the rotating conductor mechanism 3B, and at the same time have a simple structure; preferably, the rotating conductor mechanism 3B is an axial flow fan blade assembly, the flow splitting mechanism 2B is a cone structure with the cone tip in the front, there is an inflow gap 4B between the cone bottom of the flow splitting mechanism 2B and the inner wall of the cylindrical first cylindrical housing 1B, and the inflow gap 4B faces the blade end of the rotating conductor mechanism 3B, so that the fluid can be split through the cone tip of the cone to the inflow gap 4B to impact the blade end, thereby maximizing the driving force of the fluid on the rotating conductor mechanism 3B and enhancing the response ability at low flow velocity (or flow rate); more importantly, the cooperation between the axial flow fan blade assembly and the cone structure optimizes the fluid path, reduces turbulent flow interference, and improves signal stability.

[0054] Furthermore, there are two implementation methods for the rotating conductor mechanism 3B to rotate under the impact of the fluid:

[0055] Embodiment 1

[0056] The rotating conductor mechanism 3B includes a rotating shaft conductor 31B and a plurality of blade conductors 32B; the rotating shaft conductor 31B is rotatably mounted at the center inside the cylinder of the first cylindrical housing 1B, and the plurality of blade conductors 32B are arranged at intervals along the rotation direction of the rotating shaft conductor 31B, and one end of the blade conductor 32B is fixedly connected to the rotating shaft conductor 31B;

[0057] At least one support column 12B extends towards the center of the cylinder at the front and rear sides of the first cylindrical housing 1B; the end of the support column 12B is axially connected to the rotating shaft conductor 31B;

[0058] There is a first electrical connection channel 121B penetrating through each of the support columns 12B at the front and rear sides of the first cylindrical housing 1B, and the first electrical connection channel 121B is used for the first conductive member to pass through and electrically connect the rotating shaft conductor 31B and the controller D.

[0059] In this embodiment, the blade conductor 32B is fixedly connected to the rotating shaft conductor 31B to form an integral rotating structure, which can facilitate the uninterrupted conduction of the electrical signal generated after the blade conductor 32B cuts the magnetic induction line to the rotating shaft conductor 31B, and then to the controller D, ensuring the continuity of the electrical signal.

[0060] Specifically, the rotating conductor mechanism 3B is axially connected to the rotating shaft conductor 31B through the end of the support column 12B, so that the rotating shaft conductor 31B is rotatably mounted inside the first cylindrical housing 1B. For this purpose, a first electrical connection channel 121B is provided through the front and rear sides of the first cylindrical housing 1B for the first conductive member to pass through and electrically connect the rotating shaft conductor 31B and the controller D. Thus, an electrical signal is transmitted to the controller D through the first conductive member (such as a wire, copper sheet, etc.) (for example, a detection device can be provided outside the pipeline, and a through hole corresponding to the first electrical connection channel 121B is opened in the pipeline to allow the first conductive member to pass through and be electrically connected to the detection device).

[0061] Embodiment 2

[0062] The rotating conductor mechanism 3B includes a rotating shaft conductor 31B, a hub conductor, and a plurality of blade conductors 32B. The rotating shaft conductor 31B is fixedly mounted in the center of the first cylindrical housing 1B, and the plurality of blade conductors 32B are arranged around the outer peripheral surface of the hub conductor. The hub conductor is rotatably connected to the rotating shaft conductor 31B;

[0063] At least one support column 12B extends towards the center of the cylinder on the front and rear sides of the first cylindrical housing 1B. The end of the support column 12B is fixedly connected to the rotating shaft conductor 31B;

[0064] A first electrical connection channel 121B is provided through each of the support columns 12B on the front and rear sides of the first cylindrical housing 1B. The first electrical connection channel 121B is used for the first conductive member to pass through and electrically connect the rotating shaft conductor 31B and the controller D.

[0065] In this embodiment, the hub conductor and the rotating shaft conductor 31B are designed separately, with a higher degree of rotational freedom, making it easier for the blade conductors 32B to be driven by a low-flow-rate (or low-flow) fluid, improving the response speed. At the same time, the modular structure facilitates the maintenance or replacement of the blade conductors 32B to meet the requirements of different media (such as corrosive fluids).

[0066] Specifically, the rotating conductor mechanism 3B is fixedly connected to the rotating shaft conductor 31B through the end of the support column 12B, so that the rotating shaft conductor 31B is fixedly mounted inside the first cylindrical housing 1B. The electrical signal conduction methods in the two embodiments are the same.

[0067] It should be noted that the plurality of blade conductors 32B can be arranged on the same horizontal plane, or the plurality of blade conductors 32B can be spirally arranged along the rotating shaft conductor 31B from front to back.

[0068] Furthermore, the first magnetic assembly 11B includes a plurality of third magnetic members, and the plurality of third magnetic members are arranged around the inner sidewall of the first cylindrical housing 1B, and the opposite sides of the relatively arranged third magnetic members are set to have opposite polarities.

[0069] In this embodiment, a plurality of third magnetic members are arranged around the inner sidewall of the first cylindrical housing 1B to generate a magnetic field inside the cylinder of the first cylindrical housing 1B. There are the following implementation manners:

[0070] Embodiment 1

[0071] The third magnetic member is an electromagnet. A plurality of electromagnets are arranged around the inner sidewall of the first cylindrical housing 1B. The non-winding ends of the electromagnets face the center of the cylinder of the first cylindrical housing 1B, and the opposite sides of the relatively arranged electromagnets are set to have opposite polarities. Through the surrounding design of paired electromagnets with opposite polarities, as many magnetic induction lines as possible that span the inner space of the cylinder of the first cylindrical housing 1B are generated inside the cylinder, so that the magnetic induction lines are as perpendicular to the fluid as possible, facilitating the rapid generation of electrical signals by positive cutting. More importantly, the magnetic field of the electromagnet is generated by power supply excitation, and the magnetic field generation is controllable and the magnetic field intensity is adjustable, which can greatly improve the controllability of the flow interruption sensor, facilitating the expansion of more control methods.

[0072] Therefore, a second electrical connection channel 111B leading to the outside is provided on the inner side of the housing of the first cylindrical housing 1B for a second conductive member (such as a wire, a copper sheet, etc.) to pass through and be electrically connected to the electromagnet and the controller D.

[0073] Embodiment 2

[0074] The third magnetic member is a permanent magnet. A plurality of permanent magnets are arranged around the inner sidewall of the first cylindrical housing 1B, and the opposite sides of the relatively arranged permanent magnets are set to have opposite polarities. This setting method is the same as that of the electromagnet, but is more suitable for an environment without external power supply.

[0075] Furthermore, the second magnetic assembly 11C is arranged in the middle of the housing of the second cylindrical housing 1C. The second cylindrical housing 1C is recessed towards the inside of the cylinder at the front end and the rear end of the second magnetic assembly 11C to form electrode limiting grooves 12C, and the electrode ring 2C is nested in the electrode limiting grooves 12C.

[0076] In this embodiment, in order to keep the positional relationship between the two electrode rings 2C and the second cylindrical housing 1C unchanged (to prevent the electrode ring 2C from being offset due to the impact of the fluid), the second cylindrical housing 1C is recessed towards the inside of the cylinder at the front end and the rear end of the second magnetic assembly 11C to form electrode limiting grooves 1C for nesting and installing the electrode ring 2C.

[0077] Furthermore, at least one electrode through hole 121C is provided on the side wall of the electrode limiting groove 12C. The electrode ring 2C is provided with an electrode protrusion 21C corresponding to the electrode through hole 121C, and the electrode protrusion 21C and the electrode through hole 121C are fitted and connected.

[0078] In this embodiment, in order to more firmly mount the electrode ring 2C on the second cylindrical housing 1C and facilitate the electrode ring 2C to feedback signals to the controller outside the pipeline, at least one electrode through-hole 121C is provided on the side wall of the electrode limit groove 12C for mating connection with the electrode bump 21C of the electrode ring 2C. At the same time, after the pipeline is provided with a through-hole corresponding to the electrode bump 21C, the electrode bump 21C can extend out of the pipeline to be electrically connected to the controller, or the electrode bump 21C extends out of the pipeline to be electrically connected to the controller through a wire, a copper sheet, etc.

[0079] Furthermore, the second magnetic assembly 11C includes a first magnetic member 111C and a second magnetic member 112C; the inner space of the left shell of the second cylindrical housing 1C protrudes towards the inside of the cylinder for arranging the first magnetic member 111C; the inner space of the right shell of the second cylindrical housing 1C protrudes towards the inside of the cylinder for arranging the second magnetic member 112C; a magnetic field is generated between the first magnetic member 111C and the second magnetic member 112C.

[0080] In this embodiment, as Figure 7 shown, based on the need to generate a magnetic field inside the cylinder of the second cylindrical housing 1C, the second magnetic assembly 11C is composed of a first magnetic member 111C and a second magnetic member 112C, and are respectively arranged on the left and right sides inside the cylinder, and a magnetic field is generated between the first magnetic member 111C and the second magnetic member 112C, so that when the fluid flows through the cylinder, it can cut the magnetic induction lines to generate an electromotive force. More importantly, the second cylindrical housing 1C forms an inner space for installing the first magnetic member 111C and the second magnetic member 112C by protruding towards the inside of the cylinder, and the purpose of gathering the fluid can be achieved by narrowing the space on the left and right sides inside the cylinder (especially after the flow splitting mechanism 2B of the kinetic energy sensor B at the front end splits the fluid). When the fluid flow rate is small, it can also gather to cut the magnetic induction lines to identify the flow rate of the small-flow fluid.

[0081] The first magnetic member 111C and the second magnetic member 112C can be a combination of two electromagnets or a combination of two permanent magnets to generate a magnetic field; however, more preferably, the first magnetic member 111C is an electromagnet and the second magnetic member 112C is a permanent magnet, and the polarities of the opposite sides of the first magnetic member 111C and the second magnetic member 112C are set to be opposite to adjust the sensitivity of the flow induction; when a small flow sensitivity is required, only the second magnetic member 112C can be used to generate a magnetic field, and the magnetic induction lines are emitted from the N pole of the permanent magnet itself back to the S pole. Since the magnetic induction lines are arcs in this way, the number of magnetic induction lines cut by the fluid is small, so the sensitivity to the flow rate is low; when a higher flow sensitivity is required, the first magnetic member 111C can be energized to make the two magnetic fields attract each other to generate magnetic induction lines spanning the inner space of the cylinder. In this way, the number of magnetic induction lines cut by the fluid is more, and the sensitivity to the flow rate is higher. At the same time, the magnetic field strength can be further increased by increasing the energization voltage of the first magnetic member 111C, thereby further increasing the sensitivity to the flow rate.

[0082] Therefore, when the first magnetic member 111C is an electromagnet, it needs to be controlled by the controller D. Therefore, a third electrical connection channel 13C leading to the outside is provided on the inner periphery of the second cylindrical housing 1C for a third conductive member (such as a wire, a copper sheet, etc.) to pass through and be electrically connected to the electromagnet (that is, the third conductive member is electrically connected to the electromagnet and the controller D).

[0083] Furthermore, airtight fixing members or airtight fixing structures are provided on the outer peripheries of the first cylindrical housing 1B and the second cylindrical housing 1C.

[0084] In this embodiment, since both the first cylindrical housing 1B and the second cylindrical housing 1C need to be embedded and installed in the pipeline, airtight fixing members (such as sealing silicone) or airtight fixing structures (such as flanges or threads) are provided on their outer peripheries, which can prevent fluid leakage and ensure the safety of the pipeline system.

[0085] The other components and operations of a pipeline circulating water monitoring device according to an embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0086] In the description of this specification, the descriptions referring to the terms "embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0087] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pipeline circulating water monitoring device, characterized in that: It includes a connecting pipe, a kinetic energy sensor, an electromagnetic sensor and a controller; both the kinetic energy sensor and the electromagnetic sensor are nested inside the pipe of the connecting pipe. The kinetic energy sensor and the electromagnetic sensor are respectively located at the front and rear of the connecting pipe. The detection channels of the kinetic energy sensor and the electromagnetic sensor are both communicated with the connecting pipe. The controller is electrically connected to the kinetic energy sensor and the electromagnetic sensor respectively; When fluid flows through the kinetic energy sensor, it pushes the rotating mechanism of the kinetic energy sensor to rotate, and the kinetic energy sensor feeds back the rotation speed of the rotating mechanism to the controller; When fluid flows through the electromagnetic sensor, the electromagnetic sensor feeds back the flow rate to the controller through electromagnetic induction.

2. The pipeline circulating water monitoring device according to claim 1, wherein: The kinetic energy sensor includes a first cylindrical outer shell, a flow splitting mechanism and a rotating conductor mechanism; a first magnetic assembly is arranged inside the shell of the first cylindrical outer shell, and the first magnetic assembly is used to generate a magnetic field inside the cylinder of the first cylindrical outer shell; The rotating conductor mechanism is arranged inside the cylinder of the first cylindrical outer shell, and the flow splitting mechanism is arranged in front of the first cylindrical outer shell; the flow splitting mechanism is used to split and introduce the fluid into the cylinder of the first cylindrical outer shell, and uniformly impact and push the rotating conductor mechanism; The electromagnetic sensor includes a second cylindrical outer shell and two electrode rings; A second magnetic assembly is arranged inside the shell of the second cylindrical outer shell, and the second magnetic assembly is used to generate a magnetic field inside the cylinder of the second cylindrical outer shell; The two electrode rings are respectively arranged at the front end and the rear end of the second cylindrical outer shell; The controller is electrically connected to the rotating conductor mechanism and the electrode rings respectively.

3. The pipeline circulating water monitoring device according to claim 2, characterized in that: The rotating conductor mechanism is an axial flow fan blade assembly, the flow splitting mechanism is a conical structure with the cone tip in front, and there is an inflow interval between the cone bottom of the flow splitting mechanism and the inner wall of the cylindrical shell of the first cylindrical outer shell, and the inflow interval is opposite to the blade end of the rotating conductor mechanism.

4. The pipeline circulating water monitoring device according to claim 3, characterized in that: The rotating conductor mechanism includes a rotating shaft conductor and a plurality of blade conductors; the rotating shaft conductor is rotatably arranged in the center of the cylinder of the first cylindrical outer shell, and the plurality of blade conductors are arranged at intervals along the rotation direction of the rotating shaft conductor, and one end of the blade conductor is fixedly connected to the rotating shaft conductor; At least one support column extends towards the center of the cylinder on the front side and the rear side of the first cylindrical outer shell; the end of the support column is axially connected to the rotating shaft conductor; There is a first electrical connection channel penetrating through each of the support columns on the front side and the rear side of the first cylindrical outer shell, and the first electrical connection channel is used for a first conductive part to pass through and electrically connect the rotating shaft conductor and the controller.

5. The pipeline circulating water monitoring device according to claim 3, characterized in that: The rotating conductor mechanism includes a rotating shaft conductor, a hub conductor and a plurality of blade conductors; the rotating shaft conductor is fixedly arranged in the center of the cylinder of the first cylindrical outer shell, and the plurality of blade conductors are arranged around the outer peripheral surface of the hub conductor, and the hub conductor is rotatably connected to the rotating shaft conductor; At least one support column extends towards the center of the cylinder on the front side and the rear side of the first cylindrical outer shell; the end of the support column is fixedly connected to the rotating shaft conductor; On the front side and the rear side of the first cylindrical outer shell, there is a first electrical connection channel penetrating through each of the support columns. The first electrical connection channel is used for a first conductive member to pass through and electrically connect the rotating shaft conductor and the controller.

6. The pipeline circulating water monitoring device according to claim 2, characterized in that: The first magnetic assembly includes a plurality of third magnetic members. The plurality of third magnetic members are arranged around the inner side wall of the first cylindrical outer shell, and the opposite sides of the oppositely arranged third magnetic members are set to have opposite polarities.

7. The pipeline circulating water monitoring device according to claim 2, characterized in that: The second magnetic assembly is arranged in the middle of the second cylindrical outer shell. The second cylindrical outer shell is recessed towards the inside of the cylinder at the front end and the rear end of the second magnetic assembly respectively to form electrode limiting grooves. The electrode ring is nested in the electrode limiting grooves.

8. The pipeline circulating water monitoring device according to claim 7, characterized in that: At least one electrode through hole is provided on the side wall of the electrode limiting groove. The electrode ring is provided with an electrode bump corresponding to the electrode through hole, and the electrode bump and the electrode through hole are fitted and connected.

9. The pipeline circulating water monitoring device according to claim 2, characterized in that: The second magnetic assembly includes a first magnetic member and a second magnetic member; the left inner space of the second cylindrical outer shell protrudes towards the inside of the cylinder for arranging the first magnetic member; the right inner space of the second cylindrical outer shell protrudes towards the inside of the cylinder for arranging the second magnetic member; a magnetic field is generated between the first magnetic member and the second magnetic member.

10. The pipeline circulating water monitoring device according to claim 2, characterized in that: Sealing fixing members or sealing fixing structures are provided on the outer peripheral sides of the first cylindrical outer shell and the second cylindrical outer shell.

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