CN220670616U - Accurate monitoring triangle weir device of discharge based on weighing type - Google Patents

Abstract

A water flow accurate monitoring triangular weir device based on weighing comprises a box body, wherein a triangular weir groove is formed on the top surface of the box body; the bottom of the triangular weir groove is communicated with a corrugated hose, the corrugated hose is limited in the inner cavity of the box body, one end of the corrugated hose, which is far away from the triangular weir groove, is connected with a communicating vessel, the communicating vessel is of a U-shaped tube structure, one end of the communicating vessel, which is far away from the corrugated hose, penetrates through the top surface of the box body from bottom to top, the communicating vessel is in sliding connection with the box body, a weighing sensor is fixedly arranged at a position, which is positioned right below the communicating vessel, of the bottom surface of the inner cavity of the box body, and the bottom end of the communicating vessel is in butt joint with the top surface of the weighing sensor; an observation window is arranged at the side surface of the box body and at the position corresponding to the weighing sensor.

Description

A weighing-based accurate water flow monitoring triangular weir device

Technical field

The utility model relates to the technical field of accurate monitoring of regional water flow, and in particular to a triangular weir device for accurate monitoring of water flow based on weighing.

Background technique

The monitoring and management of hydrological parameters are very necessary whether in flood control, water supply, agriculture, or engineering construction, and the measurement of water flow is a prerequisite. Specifically, monitoring water flow can determine drought and flood disasters and issue flood warnings; it can determine whether landslides, collapses and other disasters will be caused by rainfall during project construction in mountainous areas. Today, human beings are faced with many challenges and realize the use of water resources for different purposes. (Recreation, energy, irrigation, construction, drinking water) and to meet the new needs for knowledge in social development, the monitoring of water flow has specific significance and status.

Existing water flow monitoring devices mainly include the following two types: existing technology (1). The water flow monitoring device uses a liquid flow meter to monitor. The liquid flow meter is made according to Faraday’s law of electromagnetic induction to measure conductive liquids. The instrument is to place the water flow meter in the water, and use an electronic counter to read the flow rate at the water outlet to measure the water flow rate; the existing technology (2) is to use the pressure of the water to monitor, specifically to use the water formed in the pipe area. The differential pressure reads the flow of water.

The equipment in the prior art (1) has certain limitations. The measured data does not consider the fluid density. It is inappropriate to only give the volume flow rate at room temperature. In addition to the measured flow signal, there will also be some inclusions. Signals that have nothing to do with flow, such as in-phase voltage, quadrature voltage and common mode voltage, will cause interference, and the water flow meter is complex to install, difficult to read, low in accuracy and high in price; the equipment used in the existing technology (2) It is greatly affected by the density and temperature of the medium, so the accuracy is often poor, and the equipment is greatly limited by the water flow rate, which can easily cause false water levels. At the same time, affected by the climate, it can easily cause the water level to be sluggish and the accuracy is inaccurate.

Utility model content

The purpose of this utility model is to provide a triangular weir device for accurately monitoring water flow based on a weighing type, so as to solve the problems existing in the above-mentioned prior art.

A triangular weir device for accurately monitoring water flow based on weighing type, including a box body, a triangular weir groove is formed on the top surface of the box body; a corrugated hose is connected to the bottom of the triangular weir groove, and the corrugated hose It is limited in the inner cavity of the box, and one end of the corrugated hose away from the triangular weir groove is connected to a connector. The connector is in a "U"-shaped tube structure, and the end of the connector away from the corrugated hose is connected to the inner cavity of the box. One end of the box runs through the top surface of the box from bottom to top. The connector is slidingly connected to the box. A weighing sensor is fixedly installed on the bottom surface of the inner cavity of the box directly below the connector. The bottom end of the connector is fixedly connected to the top surface of the load cell; an observation window is provided on the side of the box at a position corresponding to the load cell.

Preferably, a rain shield is buckled on the top surface of the box at the end of the connector, and the rain shield is a hollow cylindrical structure with a transparent bottom surface.

Preferably, the rain shield is made of iron, and several magnets are fixed on the top surface of the inner cavity of the box at positions corresponding to the rain shield.

Preferably, a transparent plastic plate is fixed on the inner cavity side wall of the box at a position corresponding to the observation window.

The utility model discloses the following technical effects:

This patent can measure water flow more conveniently and accurately, and the entire test can be completed in the field, expanding the scope of application; not only can the water flow be measured accurately, but there will be no interference from other irrelevant data in the measured data. Problems such as inaccurate measurement and poor precision due to climate effects occur; and the water flow data obtained can be further analyzed manually, which is of great significance in scientific research and engineering practice.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting any creative effort.

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a schematic diagram of the positional relationship between the rain shield and the ends of the connector according to the present invention.

in:

1. Transparent plastic plate; 2. Triangular weir groove; 3. Corrugated hose; 4. Connector; 5. Observation window; 6. Rain shield; 7. Magnet; 8. Box; 9. Loading sensor.

Implementation

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

In order to make the above-mentioned purposes, features and advantages of the present utility model more obvious and easy to understand, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

Referring to Figures 1-2, a triangular weir device for accurately monitoring water flow based on weighing type includes a box body 8, and a triangular weir groove 2 is formed on the top surface of the box body 8; the bottom of the triangular weir groove 2 is connected to a corrugated hose 3, and the corrugated hose 3 is confined in the inner cavity of the box body 8, and the end of the corrugated hose 3 away from the triangular weir groove 2 is connected to a communicating vessel 4, and the communicating vessel 4 is a "U"-shaped tube structure, and the end of the communicating vessel 4 away from the corrugated hose 3 passes through the top surface of the box body 8 from bottom to top, and the communicating vessel 4 is slidably connected to the box body 8, and a weighing sensor 9 is fixedly installed on the bottom surface of the inner cavity of the box body 8, which is located directly below the communicating vessel 4, and the bottom end of the communicating vessel 4 is fixedly connected to the top surface of the weighing sensor 9; an observation window 5 is opened on the side of the box body 8 at a position corresponding to the weighing sensor 9.

The box body 8 is made of stainless steel. The top surface of the box body 8 is a removable box cover. The top surface of the box body 8 is directly recessed downward to form a triangular weir groove 2. The triangular weir groove 2 runs through the two opposite sides of the box body 8 front and rear, so that the box body 8 can be Drain external water into the triangular weir groove 2; the corrugated hose 3 is installed vertically, the top of the corrugated hose 3 is fixed at the bottom of the triangular weir groove 2 and is connected to the triangular weir groove 2, and its bottom end is connected to the connector 4 One end of the connector 4 is connected, the corrugated hose 3 is made of rubber and can be stretched and compressed; both ports of the connector 4 are facing vertically, and the end of the connector 4 away from the triangular weir groove 2 penetrates the top surface of the box 8 and is connected with the box The top surface of the body 8 is slidingly connected; the connector 4 can move up and down within the stretching limit of the corrugated hose 3; the load cell 9 is a resistive load cell.

Before use, first pour some water into the connector 4 until the corrugated hose 3 is filled with water. At this time, the height of the water in the connector 4 is flush with the bottom of the triangular weir tank 2. When the water flows from When the triangular weir trough 2 flows through, since the connector 4 is connected to the triangular weir trough 2, and the water levels at both ends of the connector 4 are the same, part of the water will enter the connector 4, keeping the connector 4 away from the corrugated hose 3 The water level in one end rises to the same height as the water level in the triangular weir trough 2, and the gravity of the increased water will also be exerted on the load cell 9 through the connector 4. If the load cell 9 elastically deforms, The connector 4 will also descend, and the corrugated hose 3 will also be stretched, which can match the slight deformation of the load cell 9; the user can observe the reading of the load cell 9 from the observation window 5 and record the change in weight. , get the increased mass of water, and calculate the flow rate of water through conversion.

To further optimize the solution, a rain shield 6 is buckled on the top surface of the box 8 at the end of the connector 4. The rain shield 6 has a hollow cylindrical structure and a transparent bottom surface.

Because the end of the connector 4 away from the corrugated hose 3 needs to be extended to the top of the box 8 to communicate with the outside world, rain or other water may enter the connector 4. The rain shield 6 can block the connector 4 away from the corrugations. One end of the hose 3 prevents rainwater or water from other places from entering the connector 4 and affecting the measured data.

In a further optimized solution, the rain shield 6 is made of iron, and a number of magnets 7 are fixed on the top surface of the inner cavity of the box 8 at positions corresponding to the rain shield 6 .

The rain shield 6 can be firmly adsorbed on the box 8 through the magnet 7 to avoid displacement due to wind and rain.

To further optimize the solution, a transparent plastic plate 1 is fixed at the position corresponding to the inner cavity side wall of the box 8 and the observation window 5 .

The transparent plastic plate 1 can prevent water from entering the box 8 from the observation window 5, and plays a protective role for the load cell 9.

When using the utility model, pour some water into the connector 4 in advance until the corrugated hose 3 is filled, so that the water surface is flush with the bottom of the triangular weir trough 2, and then record the reading of the weighing sensor 9, and then Introduce the water with the flow rate to be measured into the triangular weir tank 2, and observe the reading change of the weighing sensor 9 in the observation window 5. The reading change value is the increased mass m of the water. After obtaining the mass m of the water, the density can be used Calculate the formula to get the volume v of water, then use the volume formula v=sh to get the height of the water at this time, and get the flow rate Q of the water through the existing formula.

In the description of the present invention, it should be understood that the terms "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical" The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model, rather than Indicating or implying that the device or component must have a specific orientation, be constructed and operate in a specific orientation, it cannot be construed as a limitation on the present invention.

The above-described embodiments are only descriptions of preferred modes of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, those of ordinary skill in the art can make technical solutions to the present utility model. Various modifications and improvements should fall within the protection scope determined by the claims of the present utility model.

Claims (4)

1. A triangular weir device for accurately monitoring water flow based on a weighing type, which is characterized in that it includes: a box (8) with a triangular weir groove (2) formed on the top surface of the box (8); A corrugated hose (3) is connected to the bottom of the weir groove (2). The corrugated hose (3) is limited in the inner cavity of the box (8). The corrugated hose (3) is away from the triangle. One end of the weir groove (2) is connected to a connector (4). The connector (4) has a "U"-shaped tube structure. The end of the connector (4) away from the corrugated hose (3) is formed by Penetrating the top surface of the box (8) from bottom to top, the connector (4) is slidingly connected to the box (8), and the bottom surface of the inner cavity of the box (8) is located on the connector (4) ) is fixedly installed with a load cell (9) directly below, and the bottom end of the connector (4) is fixedly connected to the top surface of the load cell (9); the side of the box (8) is connected to the An observation window (5) is provided at the position corresponding to the load sensor (9). 2. A triangular weir device for accurately monitoring water flow based on weighing type according to claim 1, characterized in that: the top surface of the box (8) is located at the end of the connector (4). A rain shield (6) is provided, and the rain shield (6) has a hollow cylindrical structure and a transparent bottom surface. 3. A triangular weir device for accurately monitoring water flow based on weighing according to claim 2, characterized in that: the rain shield (6) is made of iron, and the top of the inner cavity of the box (8) Several magnets (7) are fixed on the surface at positions corresponding to the rain shield (6). 4. A triangular weir device for accurately monitoring water flow based on weighing according to claim 1, characterized in that: the position of the inner cavity side wall of the box (8) corresponds to the observation window (5) A transparent plastic plate (1) is fixedly connected.