Dual flow ultrasonic water meter

Abstract

The utility model relates to a kind of double runner ultrasonic water meter, the water meter including the lower cover body and upper cover body assembled together;The lower cover body and upper cover body between being provided with water meter shell;The water meter shell is provided with first runner and second runner side by side;The two ends of the first runner are symmetrically provided with transducer and reflector;The upper cover body is provided with electronic module;The transducer is connected by wire and electronic module;The upper cover body is also provided with electric valve structure for controlling the switch of second runner;The electric valve structure is connected by wire and electronic module;The upper cover body is also provided with lithium battery for providing operating energy.Compared with prior art, the utility model has the advantages of improving the accuracy of water metering, meeting water demand, etc.

Description

Technical Field

[0001] This utility model relates to the field of water meter technology, and in particular to a dual-channel ultrasonic water meter. Background Technology

[0002] Water meter diameter selection is typically based on actual water usage needs. For example, ordinary households mainly use DN15 and DN20 meters. However, in public places like shopping malls, bathhouses, hotels, residential buildings, and student dormitories, medium-diameter meters (DN40-DN80) are often installed. These locations often have significant differences in water consumption between peak and off-peak periods. For instance, in student dormitories, peak water usage typically occurs in the summer evenings, with a substantial difference between peak usage during class time or late at night. Therefore, when selecting a water meter with a large diameter and a high common flow rate (Q3), the existing meter range ratio limits its small flow rate (Q1). This results in a potentially large measurement error during periods of lower water consumption, even when meeting peak demand. Conversely, while smaller diameter meters with a lower common flow rate (Q3) improve accuracy during off-peak periods, they may not fully meet user needs during peak periods. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a dual-channel ultrasonic water meter.

[0004] The objective of this utility model can be achieved through the following technical solutions: A dual-channel ultrasonic water meter includes a lower cover and an upper cover assembled together; a water meter housing is disposed between the lower cover and the upper cover; a first channel and a second channel are arranged side by side on the water meter housing; transducers and reflectors are symmetrically arranged at both ends of the first channel; an electronic module is disposed within the upper cover; the transducers are connected to the electronic module via wires; an electric valve structure for controlling the switching of the second channel is also disposed within the upper cover; the electric valve structure is connected to the electronic module via wires; and a lithium battery for providing operating power is also disposed within the upper cover.

[0005] Furthermore, the electric valve structure includes a valve electric actuator disposed within the upper cover; the upper cover also contains a cavity communicating with the second flow channel; the valve electric actuator contains a motor, and a valve stem screw is disposed at the rotating end of the motor; a valve stem is disposed at the bottom end of the valve stem screw; a gate for opening and closing the second flow channel is threaded onto the valve stem; both the valve stem and the gate are located within the cavity.

[0006] Furthermore, a valve sealing ring is provided between the electric valve actuator and the cavity for sealing.

[0007] Furthermore, the transducer is provided with a transducer pressure plate and a pad, which are assembled together with the transducer onto the water meter housing by transducer mounting screws.

[0008] Furthermore, an electronic module sealing box is provided inside the upper cover; the electronic module is disposed inside the electronic module sealing box.

[0009] Furthermore, the lower cover and the upper cover are fixedly installed using cover assembly screws.

[0010] Compared with the prior art, the present invention has the following advantages: This utility model, through the design of a dual-channel and electric valve structure, allows the second channel to be opened and closed according to a set water flow rate. During off-peak water usage periods, the second channel is closed to increase the water flow rate, thereby improving the accuracy of water meter measurement and making the water meter's performance more stable and reliable in the low-meter range. During peak water usage periods, the second channel is opened to allow for a larger water flow, thus better meeting the water demand of residents during peak periods and making water meter selection simpler and more convenient for water management departments. Attached Figure Description

[0011] Figure 1 This is a schematic cross-sectional view of the overall structure of the water meter provided by this utility model; Figure 2 A schematic diagram of the electronic module structure of the water meter provided by this utility model.

[0012] The labels in the diagram indicate: 1. Water meter housing; 2. Transducer mounting screws; 3. Transducer pressure plate; 4. Transducer; 5. Gasket; 6. Transducer sealing ring; 7. Reflector; 8. Cover mounting screws; 9. Valve electric actuator; 10. Valve sealing ring; 11. Valve stem screw; 12. Valve stem; 13. Gate; 14. Electronic module; 15. Electronic module sealing box; 16. Lithium battery; 17. Lower cover; 18. Upper cover; 19. First flow channel; 20. Second flow channel; 21. Cavity. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example

[0015] like Figure 1 and 2 As shown, a dual-channel ultrasonic water meter includes a lower cover 17 and an upper cover 18, which are assembled and fixed together by cover mounting screws 8; a water meter housing 1 is disposed between the lower cover 17 and the upper cover 18; a first channel 19 and a second channel 20 are arranged side by side on the water meter housing 1; a transducer 4 and a reflector 7 are symmetrically arranged at both ends of the first channel 19; a transducer pressure plate 3 and a pad 5 are disposed on the transducer 4, and the transducer 4 and the pad 5 are assembled together on the water meter housing 1 by transducer mounting screws 2; the upper cover 1... An electronic module 14 is installed inside the upper cover 18; an electronic module sealing box 15 is installed inside the upper cover 18; the electronic module 14 is installed inside the electronic module sealing box 15; the transducer 4 is connected to the electronic module 14 via a wire, and detects the flow velocity of water passing through the flow channel 1 using the time difference method principle. The time difference method principle is a commonly used method for flow velocity measurement in ultrasonic water meters and is existing technology, therefore its principle will not be described in detail; the upper cover 18 also has an electric valve structure for controlling the opening and closing of the second flow channel 20; the electric valve structure is connected to the electric... Submodule 14 is connected; a lithium battery 16 for providing operating power is also provided inside the upper cover 18; the electric valve structure includes a valve electric actuator 9 disposed inside the upper cover 18; a cavity 21 communicating with the second flow channel 20 is also provided inside the upper cover 18; a motor is disposed inside the valve electric actuator 9, and a valve stem screw 11 is disposed at the rotating end of the motor; a valve stem 12 is disposed at the bottom end of the valve stem screw 11; a gate 13 for opening and closing the second flow channel 20 is threaded onto the valve stem 12; the valve stem Both valve stem 12 and gate 13 are located inside cavity 21. When electronic module 14 sends an open or close signal to valve electric actuator 9, valve electric actuator 9 controls the internal motor to rotate clockwise or counterclockwise, which in turn drives valve stem 12 to rotate clockwise or counterclockwise through valve stem screw 11. This causes gate 13 to rise or fall under the action of the thread, thereby opening and closing the second flow channel 20. A valve sealing ring 10 is provided between valve electric actuator 9 and cavity 21 for sealing, preventing water from leaking from cavity 21 to the outside of water meter housing 1.

[0016] The working principle of this utility model is as follows: In the basic state, the electric valve structure closes the second flow channel 20, and water flows solely through the first flow channel 19. The water flow velocity detected by the transducer 4 is combined with the cross-sectional area 1 of the first flow channel 19 to calculate the water consumption. At this time, while meeting the water meter pressure loss requirements, the cross-sectional area of ​​the first flow channel 19 can be reduced by narrowing its diameter as needed. When the water consumption is low, the water flow velocity is increased, thereby improving the accuracy of water meter measurement and making the water meter's performance more stable and reliable in the low-metering range. When the peak water consumption period arrives, the water meter's electronic module 14 detects that the water meter flow rate gradually approaches the overload flow rate Q4 and remains there for a set time. At this time, the electronic module 14 controls the electric valve structure to open the second flow channel 20. The water meter then enters a dual-flow channel state, with water flowing through both channels. The water flow velocity detected by the transducer 4 is combined with the cross-sectional area of ​​the first flow channel 19 and the cross-sectional area of ​​the second flow channel 20 to calculate the water consumption, thus better meeting the water demand of residents during peak water consumption periods. As peak water usage gradually transitions to off-peak periods, the electronic module 14 of the water meter detects that the water consumption remains below the Q3 value and gradually approaches the Q2 value for a certain period. Then, the electronic module 14 controls the electric valve structure to close the second flow channel 20, allowing the water meter to return to its initial basic state. This patented product structure ensures water meter accuracy during off-peak periods while better meeting the water demand during peak periods, making water meter selection simpler and more convenient for water management departments.

[0017] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A dual-channel ultrasonic water meter, characterized in that, The water meter includes a lower cover (17) and an upper cover (18) assembled together; a water meter housing (1) is provided between the lower cover (17) and the upper cover (18); a first flow channel (19) and a second flow channel (20) are arranged side by side on the water meter housing (1); a transducer (4) and a reflector (7) are symmetrically arranged at both ends of the first flow channel (19); an electronic module (14) is provided inside the upper cover (18); the transducer (4) is connected to the electronic module (14) through a wire; an electric valve structure for controlling the opening and closing of the second flow channel (20) is also provided inside the upper cover (18); the electric valve structure is connected to the electronic module (14) through a wire; and a lithium battery (16) for providing operating energy is also provided inside the upper cover (18).

2. The dual-channel ultrasonic water meter according to claim 1, characterized in that, The electric valve structure includes a valve electric actuator (9) installed inside the upper cover (18); the upper cover (18) also has a cavity (21) that communicates with the second flow channel (20); the valve electric actuator (9) is equipped with a motor, and a valve stem screw (11) is installed at the rotating end of the motor; a valve stem (12) is installed at the bottom end of the valve stem screw (11); a gate (13) for opening and closing the second flow channel (20) is threaded onto the valve stem (12); the valve stem (12) and the gate (13) are both located inside the cavity (21).

3. A dual-channel ultrasonic water meter according to claim 2, characterized in that, A valve sealing ring (10) for sealing is provided between the valve electric actuator (9) and the cavity (21).

4. A dual-channel ultrasonic water meter according to claim 1, characterized in that, The transducer (4) is provided with a transducer pressure plate (3) and a pad (5), which are assembled together with the transducer (4) onto the water meter housing (1) by transducer mounting screws (2).

5. A dual-channel ultrasonic water meter according to claim 1, characterized in that, The upper cover (18) is provided with an electronic module sealing box (15); the electronic module (14) is provided in the electronic module sealing box (15).

6. A dual-channel ultrasonic water meter according to claim 1, characterized in that, The lower cover (17) and the upper cover (18) are fixedly installed by cover mounting screws (8).

Images