A valve with a flow sensor

Abstract

A valve with a flow sensor comprises a valve body, a water inlet and a water outlet are arranged on the valve body, a magnetic water flow rotor assembly is arranged in the inner cavity of the water inlet or the water outlet, and a Hall sensor is arranged on the outer periphery of the valve body corresponding to the magnetic water flow rotor assembly. Preferably, the valve body is an electric ball valve, which includes an electric actuator, and the electric actuator includes a power actuator and an electronic controller, the electronic controller includes a microelectronic control module inside it and a control panel arranged on its outer surface, the microelectronic control module and the control panel are connected and the various rated control parameters of the microelectronic control module are set through the control panel, the Hall sensor is connected to the electronic controller, and converts the dynamic change of the flow into a pulse signal to feed back to the electronic controller.

Description

Technical Field

[0001] The invention belongs to the technical field of fluid control, and in particular relates to a valve with a flow sensor. Background Art

[0002] At present, in the field of traditional fluid control technology, under normal circumstances, the fluid control valve and the flow sensor are independent components, which not only causes waste of materials, but also increases the possibility of leakage due to the large number of nodes. Moreover, the pulse signal transmission line of the Hall sensor on the flow sensor will be lengthened, which can easily cause the pulse signal to be easily interfered by external electromagnetic waves during transmission.

[0003] In our daily life, water pipe leakage often occurs due to aging of water pipes or loose pipe joints. Since the water pipes are buried underground, on walls or ceilings, the above leakage is not easy to be found, which not only causes waste of water resources and increased water bills, but also endangers buildings and causes house damage and property loss. Summary of the invention

[0004] The purpose of the present invention is to design a valve with a flow sensor to solve the problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A valve with a flow sensor comprises a valve body, wherein the valve body is provided with a water inlet and a water outlet, a magnetic water flow rotor assembly is arranged in the inner cavity of the water inlet, and the water flows along the tangent direction of the impeller in the magnetic water flow rotor assembly, and a Hall sensor is arranged on the outer wall corresponding to the magnetic body in the magnetic water flow rotor assembly.

[0007] In the above-mentioned valve with a flow sensor, the valve body is an electric ball valve, which includes an electric actuator. The electric actuator includes a power actuator and an electronic controller. The electronic controller includes an internal microelectronic control module and a control panel arranged on its outer surface. The microelectronic control module and the control panel are connected and the various rated control parameters of the microelectronic control module are set through the control panel. The Hall sensor is connected to the electronic controller and converts the dynamic changes of the flow into a pulse signal and feeds it back to the electronic controller.

[0008] In the above-mentioned valve with flow sensor, the valve body is an electric ball valve, which includes an electric actuator, the electric actuator includes a power actuator and an electronic controller, the electronic controller includes a microelectronic control module inside it and a control panel arranged on its outer surface, the microelectronic control module and the control panel are connected and the rated control parameters of the microelectronic control module are set through the control panel, the Hall sensor is connected to the electronic controller, and the dynamic change of the water flow is converted into a pulse signal and fed back to the electronic controller, after being received by the microelectronic control module inside it, at least the rated parameters of "single water use cumulative duration" or "single water use cumulative water volume" are set and controlled, once the upper limit of one of the set rated parameters is reached, it is considered that the water use is abnormal, and a water flow control signal is immediately generated and output to the power actuator to execute the electric valve shutdown. Usually, after the power actuator (i.e., a mechanical gear reduction mechanism with a DC motor) receives the water flow control signal, it opens or closes the electric valve body.

[0009] The microelectronic control module described in the above-mentioned valve with a flow sensor includes a display device, a power control circuit, an MCU, a flow detection circuit, an electric valve control circuit, a display control circuit and a button control circuit, an alarm circuit or a wireless transmission control circuit.

[0010] In the above-mentioned valve with a flow sensor, a rechargeable battery is also arranged in the electric actuator.

[0011] In the above-mentioned valve with a flow sensor, the control panel is provided with a parameter setting value increase key, a parameter setting value decrease key, a function switching key, an "ON" key and an "OFF" key.

[0012] In the above-mentioned valve with a flow sensor, a micro-flow guide device is also arranged in the inner cavity between the magnetic water flow rotor assembly and the outlet of the water inlet. The micro-flow guide device is composed of a guide seat, a guide core, a compression spring and a guide element from the outside to the inside. The guide seat is in an annular shape as a whole and is threadedly connected with the water inlet, and can form a sealing fit with the guide core; the guide element is in a hub shape with an axis as a whole, including an axial hollow cylinder in the middle and a hub-shaped annular bracket, the annular bracket is limited in the inner cavity of the water inlet, and a water spray hole is arranged on the center line of the tail end of the cylinder. The tail end of the guide core is hollow inside and is sleeved on the front end of the cylinder. A plurality of micro-leak holes penetrating the end face are arranged at the center of the end face. The compression spring is sleeved on the cylinder with one end against the annular bracket and the other end sleeved on the outside of the tail end of the guide core. When the water flow is greater than the elastic force of the compression spring, the water flow pushes the guide core to move axially along the cylinder and the two are sealed by a sealing ring arranged on the end head of the cylinder. When the thrust of the water flow is less than the elastic force of the compression spring, only a small water flow can pass through the micro-leak hole and concentrate into the interior of the cylinder, and then concentrate from the water spray hole to the direction of the magnetic water flow rotor assembly.

[0013] In the above-mentioned valve with a flow sensor, the front end face of the guide core is cone-shaped, and a plurality of micro-leak holes are arranged on the front end face, and the aperture of the micro-leak hole is smaller than the aperture of the water spray hole. Such a design is very important. Usually, because the aperture of the micro-leak hole is smaller than the aperture of the water spray hole, even if there are solid impurities in the water, they will not block the water spray hole. Even if solid impurities larger than the aperture of the micro-leak hole block the micro-leak hole, they will be quickly flushed away every time water is used because of the cone-shaped design of the front end of the valve core, which is equivalent to flushing the surface of the valve core all the time, eliminating the risk of micro-leak hole blockage.

[0014] In the above-mentioned valve with flow sensor, the power control circuit intelligently switches between external power supply and internal battery power supply, and transmits the current power supply mode to the MCU. The MCU calculates a reasonable energy-saving mode through this data to extend the working time of the internal battery. At the same time, the power control circuit converts the input voltage to provide different working voltages for each module; the MCU controls each module in real time after collecting data from each functional module, including maximum flow control, time control, wireless data transmission and data analysis; the flow detection circuit detects the flow flowing through the current pipeline in real time and feeds back the flow data to the MCU; the electric valve control circuit controls the valve to open or close; the display control circuit is a display interface for human-computer dialogue, and the working status and data of the equipment are displayed in real time through the LCD screen; the button control circuit is an operation interface for human-computer dialogue, and the flow or working time and working status are set through buttons; the alarm circuit sounds an alarm when a fault occurs or a reminder is required; the wireless transmission control circuit communicates the device data with the background service program. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The drawings are only provided for reference and explanation, and are not used to limit the present invention.

[0016] Figure 1 It is a structural schematic diagram of an electric ball valve with a flow sensor provided by the present invention;

[0017] Figure 2 The present invention provides a Figure 1 The corresponding left view;

[0018] Figure 3 It is a structural schematic diagram of a valve body provided by the present invention;

[0019] Figure 4 The present invention provides Figure 3 The left view of the valve body after removing the electric actuator;

[0020] Figure 5 The present invention provides Figure 4 The AA section is marked on top;

[0021] Figure 6 It is a schematic diagram of a power supply control circuit provided by the present invention;

[0022] Figure 7 It is a schematic diagram of an MCU (microcomputer control system) provided by the present invention;

[0023] Figure 8 It is a principle diagram of a flow detection circuit provided by the present invention;

[0024] Fig. 9 It is a schematic diagram of an electric valve control circuit provided by the present invention;

[0025] Fig.10 It is a schematic diagram of a display control circuit provided by the present invention;

[0026] Fig.11 It is a principle diagram of a key control circuit provided by the present invention;

[0027] Fig.12 It is a principle diagram of an alarm circuit provided by the present invention;

[0028] Fig.13 It is a principle diagram of a wireless transmission control circuit provided by the present invention;

[0029] Fig.14 It is a structural schematic diagram of another electric ball valve with a flow sensor provided by the present invention;

[0030] Fig.15 The present invention provides Fig.14 The cross section BB is marked in the figure;

[0031] Fig.16 The present invention provides Fig.14 Top view of the valve body without the electric actuator:

[0032] Fig.17 The present invention provides Fig.16 The CC section marked in the figure;

[0033] Fig.18 It is a structural schematic diagram of the guide seat provided by the present invention;

[0034] Fig.19 The present invention provides Fig.18 The corresponding left view;

[0035] Fig. 20 It is a structural schematic diagram of the flow guide core provided by the present invention;

[0036] Fig.21 The present invention provides Fig. 20 The corresponding left view;

[0037] Fig. 22 is a schematic structural diagram of a flow guiding element provided by the present invention;

[0038] Fig.23 The present invention provides Fig. 22 Corresponding left view.

[0039] In the figure, there are valve body 1, electric actuator 2, power actuator 3, electronic controller 4, rechargeable battery 5, micro-flow guide device 6, water inlet 10, water outlet 11, magnetic water flow rotor assembly 12, Hall sensor 13, microelectronic control module 40, display device 40a, control panel 41, parameter setting value up key 42, parameter setting value down key 43, function switching key 44, "ON" key 45, "OFF" key 46, guide seat 60, guide core 61, micro leakage hole 61a, compression spring 62, guide element 63, cylinder 63a, annular bracket 63b, and water spray hole 63c. DETAILED DESCRIPTION

[0040] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Embodiment 1:

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The electric ball valve with a flow sensor shown comprises a valve body 1 , and the valve body 1 comprises an electric actuator 2 .

[0042] The valve body 1 is provided with a water inlet 10 and a water outlet 11. A magnetic water flow rotor assembly 12 is arranged in the inner cavity of the water inlet 10 and the water flows along the axial direction of the magnetic water flow rotor assembly. A Hall sensor 13 is arranged on the outer periphery of the valve body 1 corresponding to the magnetic water flow rotor assembly 12.

[0043] The electric actuator 2 includes a power actuator 3 and an electronic controller 4. The electronic controller 4 includes an internal microelectronic control module 40 and a control panel 41 arranged on its outer surface. The microelectronic control module 40 and the control panel 41 are connected and the various rated control parameters of the microelectronic control module 40 are set through the control panel 41. The Hall sensor 13 is connected to the electronic controller 4 and converts the dynamic changes of the water flow into a pulse signal and feeds it back to the electronic controller 4. After being received by the internal microelectronic control module 40, at least the setting and control of the rated parameters of "single water use cumulative duration" or "single water use cumulative water volume" are achieved. Once the upper limit of one of the set rated parameters is reached, it is regarded as an abnormality in water use, and a water flow control signal is immediately generated and output to the power actuator 3 to execute the electric valve shutdown.

[0044] In this embodiment, the microelectronic control module 40 includes a display device 40a, a power control circuit ( Figure 6 As shown), MCU (microcomputer control system) ( Figure 7 As shown), flow detection circuit ( Figure 8 As shown), electric valve control circuit ( Fig. 9 As shown), display control circuit ( Fig.10 As shown), key control circuit ( Fig.11 ), alarm circuit ( Fig.12 shown) and wireless transmission control circuit ( Fig.13 As shown in the figure, the power control circuit intelligently switches between external power supply and internal battery power supply, and transmits the current power supply mode to the MCU. The MCU calculates a reasonable energy-saving mode through this data to extend the working time of the internal battery. At the same time, the power control circuit converts the input voltage to provide different working voltages for each module; the MCU (microcomputer control system) collects data from each functional module and processes and calculates it, and then controls each module in real time, including maximum flow control, time control, wireless data transmission and data analysis; the flow detection circuit detects the flow flowing through the current pipeline in real time and feeds back the flow data to the MCU; the electric valve control circuit controls the valve to open or close; the display control circuit is a display interface for human-computer dialogue, and the working status and data of the equipment are displayed in real time through the LCD screen; the button control circuit is an operation interface for human-computer dialogue, and the flow, working time and working status are set through buttons. The alarm circuit sounds an alarm when a fault occurs or a reminder is required; the wireless transmission control circuit communicates the device data with the background service program.

[0045] In this embodiment, a rechargeable battery 5 is further provided in the electric actuator 2 .

[0046] In this embodiment, the control panel 41 is provided with a parameter setting value up-adjusting key 42 , a parameter setting value down-adjusting key 43 , a function switching key 44 , an “ON” key 45 , and an “OFF” key 46 . Embodiment 2:

[0047] like Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 , Fig.23As shown, a valve with a flow sensor comprises a valve body 1, wherein the valve body 1 is provided with a water inlet 10 and a water outlet 11, wherein a magnetic water flow rotor assembly 12 is provided in the inner cavity of the water inlet 10, and the water flows along the tangential direction of the impeller in the magnetic water flow rotor assembly 12, wherein a Hall sensor 13 is provided on the outer wall corresponding to the magnetic body in the magnetic water flow rotor assembly 12, and a micro-flow guide device 6 is further provided in the inner cavity between the magnetic water flow rotor assembly 12 and the outlet of the water inlet 10, wherein the micro-flow guide device 6 comprises a guide seat 60, a guide core 61, a compression spring 62 and a guide element 63 from the outside to the inside, wherein the guide seat 60 is in an annular shape as a whole and is threadedly connected to the water inlet 10, and can form a sealing fit with the guide core 61; the guide element 63 is in a hub shape with an axis as a whole, and comprises an axial hollow cylinder 63a in the middle and a hub-shaped ring shaped bracket 63b, the annular bracket 63b is limited in the inner cavity of the water inlet 10, a water spray hole 63c is arranged on the center line of the tail end of the cylinder 63a, the tail end of the guide core 61 is hollow inside and is sleeved on the front end of the cylinder 63a, and a plurality of micro leakage holes 61a penetrating its end face are arranged at the center of its end face, a compression spring 62 is sleeved on the cylinder 63a with one end against the annular bracket 63b, and the other end is sleeved on the outside of the tail end of the guide core 61, when the water flow is greater than the elastic force of the compression spring 62, the water flow pushes the guide core 61 to move axially along the cylinder 63a and the two are sealed by a sealing ring arranged on the end head of the cylinder 63a, when the thrust of the water flow is less than the elastic force of the compression spring 62, only the micro leakage hole 61a has a small water flow that can pass through and concentrate into the interior of the cylinder 63a and then concentrate the flow from the water spray hole 63c to the direction of the magnetic water flow rotor assembly 12.

[0048] In this embodiment, the front end surface of the guide core 61 is in a cone shape, and a plurality of micro leakage holes 61 a are arranged on the front end surface. The aperture of the micro leakage holes 61 a is smaller than the aperture of the water spray hole 63 c.

[0049] The rest is the same as in Example 1 and will not be described in detail here.

[0050] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0051] Although this article uses more terms such as valve body, electric actuator, rechargeable battery, power actuator, electronic controller, water inlet, water outlet, magnetic water flow rotor assembly, Hall sensor, microelectronic control module, display device, control panel, parameter setting value up key, parameter setting value down key, function switch key, "ON" key, "OFF" key, micro flow guide device, guide seat, guide core, micro leak hole, compression spring, guide element, cylinder, annular bracket, water spray hole, power control circuit, MCU (microcomputer control system), flow detection circuit, electric valve control circuit, display control circuit, button control circuit, alarm circuit, wireless transmission control circuit, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A valve with a flow sensor, comprising a valve body (1), wherein the valve body (1) is provided with a water inlet (10) and a water outlet (11), characterized in that: A magnetic water flow rotor assembly (12) is arranged in the inner cavity of the water inlet (10), and the water flows along the tangential direction of the impeller in the magnetic water flow rotor assembly (12), and a Hall sensor (13) is arranged on the outer wall corresponding to the magnetic body in the magnetic water flow rotor assembly (12); A micro-flow guide device (6) is also arranged in the inner cavity between the magnetic water flow rotor assembly (12) and the outlet of the water inlet (10). The micro-flow guide device (6) comprises, from the outside to the inside, a guide seat (60), a guide core (61), a compression spring (62) and a guide element (63). The guide seat (60) is in an annular shape as a whole and is threadedly connected to the water inlet (10), and can form a sealing fit with the guide core (61). The guide element (63) is in a hub shape with an axis as a whole, and comprises an axial hollow cylinder (63a) in the middle and a hub-shaped annular bracket (63b). The annular bracket (63b) is limited in the inner cavity of the water inlet (10). A water spray hole (63c) is arranged on the center line of the tail end of the cylinder (63a). The guide core (61) is provided with a compression spring (62) and a guide element (63). The tail end of the cylinder (61) is hollow inside and is sleeved on the front end of the cylinder (63a). A plurality of micro-leak holes (61a) penetrating the end face are arranged at the center of the end face. The compression spring (62) is sleeved on the cylinder (63a) with one end against the annular bracket (63b) and the other end sleeved on the outside of the tail end of the guide core (61). When the water flow is greater than the elastic force of the compression spring (62), the water flow pushes the guide core (61) to move along the axial direction of the cylinder (63a) and the two are sealed by a sealing ring arranged on the end of the cylinder (63a). When the thrust of the water flow is less than the elastic force of the compression spring (62), only a small water flow can pass through the micro-leak hole (61a) and enter the interior of the cylinder (63a) and then be concentratedly guided from the water spray hole (63c) to the direction of the magnetic water flow rotor assembly (12).

2. A valve with a flow sensor according to claim 1, characterized in that: The valve body (1) is an electric ball valve, comprising an electric actuator (2), wherein the electric actuator (2) comprises a power actuator (3) and an electronic controller (4), wherein the electronic controller (4) comprises an internal microelectronic control module (40) and a control panel (41) arranged on an outer surface thereof, wherein the microelectronic control module (40) and the control panel (41) are connected to each other and various rated control parameters of the microelectronic control module (40) are set via the control panel (41), and the Hall sensor (13) is connected to the electronic controller (4) and converts the dynamic change of the flow rate into a pulse signal and feeds it back to the electronic controller (4).

3. A valve with a flow sensor according to claim 1, characterized in that: The valve body (1) is an electric ball valve, comprising an electric actuator (2). The electric actuator (2) comprises a power actuator (3) and an electronic controller (4). The electronic controller (4) comprises an internal microelectronic control module (40) and a control panel (41) arranged on its outer surface. The microelectronic control module (40) and the control panel (41) are connected to each other and various rated control parameters of the microelectronic control module (40) are set through the control panel (41). The Hall sensor (13) is connected to the electronic controller (4) and converts the dynamic change of the water flow into a pulse signal and feeds it back to the electronic controller (4). After being received by the internal microelectronic control module (40), at least the rated parameter of "single water use cumulative duration" or "single water use cumulative water volume" is set and controlled. Once the upper limit of one of the set rated parameters is reached, it is regarded as abnormal water use, and a water flow control signal is immediately generated and output to the power actuator (3) to execute the electric valve shutdown.

4. A valve with a flow sensor according to claim 2 or 3, characterized in that: The microelectronic control module (40) comprises a display screen device (40a), a power supply control circuit, an MCU, a flow detection circuit, an electric valve control circuit, a display control circuit and a key control circuit, an alarm circuit or a wireless transmission control circuit.

5. A valve with a flow sensor according to claim 2 or 3, characterized in that: A rechargeable battery (5) is also provided in the electric actuator (2).

6. A valve with a flow sensor according to claim 2 or 3, characterized in that: The control panel (41) is provided with a parameter setting value upward adjustment key (42), a parameter setting value downward adjustment key (43), a function switching key (44), an "ON" key (45) and an "OFF" key (46).

7. A valve with a flow sensor according to claim 1, characterized in that: The front end surface of the guide core (61) is in a cone shape, and a plurality of micro-leakage holes (61a) are arranged on the front end surface. The aperture of the micro-leakage holes (61a) is smaller than the aperture of the water spray hole (63c).

8. A valve with a flow sensor according to claim 4, characterized in that: The power control circuit intelligently switches between external power supply and internal battery power supply, and transmits the current power supply mode to the MCU. The MCU calculates a reasonable energy-saving mode through this data to extend the working time of the internal battery. At the same time, the power control circuit converts the input voltage to provide different working voltages for each module; the MCU collects data from each functional module, processes and calculates it, and controls each module in real time, including maximum flow control, time control, wireless data transmission and data analysis; the flow detection circuit detects the flow flowing through the current pipeline in real time and feeds back the flow data to the MCU; the electric valve control circuit controls the valve to open or close; the display control circuit is a display interface for human-computer dialogue, and the working status and data of the equipment are displayed in real time through the LCD screen; the button control circuit is an operation interface for human-computer dialogue, and the flow or working time and working status are set through buttons; the alarm circuit sounds an alarm when a fault occurs or a reminder is required; the wireless transmission control circuit communicates the device data with the background service program.

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