Automatic fluid flow measuring device

Abstract

The utility model discloses an automatic fluid flow measuring device which comprises a box body, a gas flow measuring pipeline comprising a gas pressure regulating valve and a gas flow meter and a liquid flow measuring pipeline comprising a liquid pressure regulating valve and a liquid flow meter are arranged in the box body, and an alternating current-direct current power converter is further arranged in the box body. The input end of the box body is connected with an external power supply socket, and the output end of the box body is respectively used for supplying power to electric appliances of the gas flow measuring pipeline and the liquid flow measuring pipeline and load components to be measured; the pressure sensor is used for transmitting a pressure signal and a flow signal of the gas / liquid flow measuring pipeline to the computer. The fluid flow measuring device is easy to carry, convenient to measure and high in compatibility, the measuring range of the fluid flow measuring device covers the gas flow of 0-200 L / min and the liquid flow of 0-1 L / min, uninterrupted long-time continuous measurement of samples can be achieved, and the fluid flow measuring efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of fluid flow measurement equipment technology, and in particular to an automated fluid flow measurement device. Background Technology

[0002] Fully automated in vitro diagnostic (IVD) equipment is an indispensable part of modern medical testing laboratories, such as fully automated biochemical analyzers and fully automated chemiluminescence immunoassay analyzers. The measurement of minute fluid flow rates is frequently involved in the product selection, functional verification, lifespan verification, and system application testing of these devices. However, existing minute fluid flow rate measurement tools suffer from drawbacks such as low testing efficiency, long processing times, complex operation, and low automation levels, which can severely impact the detection performance of fully automated IVD equipment. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides a mobile, continuous, long-cycle, real-time automated fluid flow measurement device, specifically employing the following technical solution:

[0004] The automated fluid flow measurement device of this utility model includes a housing, within which are installed gas flow measurement pipelines and liquid flow measurement pipelines. The gas flow measurement pipeline includes a gas pressure regulating valve and a gas flow meter connected via a gas pipe, with a gas inlet pipe connector and a gas outlet pipe connector located on the side wall of the housing at both ends. The liquid flow measurement pipeline includes a liquid pressure regulating valve and a liquid flow meter connected via a liquid pipe, with a liquid inlet pipe connector and a liquid outlet pipe connector located on the side wall of the housing at both ends. The housing also includes a power converter that converts 220V AC power to 24V DC power. The input terminal of the power converter is connected to an external power socket located on the side wall of the enclosure. The output terminals of the power converter include a first output terminal, a second output terminal, and a third output terminal. The first output terminal is electrically connected to the gas pressure regulating valve and the gas flow meter, the second output terminal is electrically connected to the liquid flow meter, and the third output terminal is connected to a DC load port located on the side wall of the enclosure. The side wall of the enclosure is also provided with a gas path communication interface and a liquid path communication interface. The gas path communication interface is used to transmit the pressure signal and flow signal of the gas flow measurement pipeline to the computer, and the liquid path communication interface is used to transmit the pressure signal and flow signal of the liquid flow measurement pipeline to the computer.

[0005] The box body is a rectangular structure with a top cover. The top cover and the box body are provided with a hinge on the rear side and a latch on the front side.

[0006] The gas inlet pipe joint and the liquid inlet pipe joint are located on the same side of the housing, and the gas outlet pipe joint and the liquid outlet pipe joint are located on the other side of the housing relative to the gas inlet pipe joint and the liquid inlet pipe joint.

[0007] The DC load ports are arranged side by side.

[0008] A power switch is provided on the connection circuit between the external power socket and the power converter. Both the power switch and the external power socket are located on the rear side wall of the enclosure.

[0009] A gas circuit switch is provided on the connection circuit between the power converter and the gas pressure regulating valve and the gas flow meter; a liquid circuit switch is provided on the connection circuit between the power converter and the liquid flow meter; and a timer is provided on the connection circuit between the power converter and the DC load port.

[0010] The gas circuit switch, the liquid circuit switch, and the timer are all located on the top of the enclosure.

[0011] The gas communication interface and the liquid communication interface are located on the rear side wall of the enclosure.

[0012] This utility model provides an automated fluid flow measurement device that utilizes the pressure difference generated by fluid flowing through a throttling device to achieve flow measurement. It adopts a box-type structure, integrating gas flow measurement pipelines, liquid flow measurement pipelines, and a power supply circuit (to power the pump, valve, etc. being measured). The box is equipped with measurement pipeline interfaces, a power interface (including a 24V DC power supply port), a communication interface, and control components. Through communication connection between the measuring device and a computer, real-time display, graphical plotting, and data storage of measurement values ​​are achieved. This utility model is easy to carry, convenient to measure, and highly compatible. Its measurement range covers gas flow rate of 0~200L / min and liquid flow rate of 0~1L / min; its pressure measurement range covers gas pressure of 0~3MPa and liquid pressure of 0~1.3MPa; and its medium temperature measurement range covers gas temperature of 0~50°C and liquid temperature of 10~50°C. Furthermore, it can achieve uninterrupted, long-term continuous measurement of samples, greatly improving the efficiency of fluid flow measurement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 yes Figure 1 Rear view.

[0015] Figure 3 yes Figure 1 A schematic diagram of the internal structure. Detailed Implementation

[0016] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific working processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0017] like Figure 1-3 As shown, the automated fluid flow measurement device of this utility model includes a housing 1, which is a rectangular structure with a top cover. The top cover and the housing are connected by a hinge on the rear side and a latch on the front side, which can facilitate the opening and closing of the housing and the installation, maintenance and repair of the components inside the housing.

[0018] The aforementioned housing 1 is equipped with a gas flow measurement pipeline and a liquid flow measurement pipeline. The gas flow measurement pipeline includes a gas pressure regulating valve 2 and a gas flow meter 3 connected via a gas pipe. The gas pipe has a gas inlet connector 4 and a gas outlet connector 5 located on the side wall of housing 1. The liquid flow measurement pipeline is arranged in the same direction as the gas flow measurement pipeline and includes a liquid pressure regulating valve 6 and a liquid flow meter 7 connected via a liquid pipe. The liquid pipe has a liquid inlet connector 8 and a liquid outlet connector 9 located on the side wall of housing 1. Therefore, the gas inlet connector 4 and the liquid inlet connector 8 are located on the same side (left side) of housing 1, while the gas outlet connector 5 and the liquid outlet connector 9 are located on the other side (right side) of housing 1. In this embodiment, the gas pressure regulating valve 2 is an electromagnetic pressure regulating valve, and both the gas flow meter 3 and the liquid flow meter 7 are electromagnetic differential pressure flow meters, which can directly collect pressure signals and flow signals and transmit them to the computer; the liquid pressure regulating valve 6 is a mechanical pressure regulating valve. Therefore, in order to achieve communication connection with the computer, a pressure sensor is also provided on the downstream side of the liquid pressure regulating valve 6; in addition, in order to obtain the temperature data of the gas flow measurement pipeline and the liquid flow measurement pipeline, temperature sensors are respectively provided on the gas pipeline and the liquid pipeline.

[0019] The aforementioned enclosure 1 also houses a power converter 10 that converts 220V AC power to 24V DC power. The input terminal of the power converter 10 is connected to an external power socket 11 located on the rear wall of the enclosure 1. A power switch 12, also located on the rear wall of the enclosure 1, is installed on the connection circuit between the two. The power converter 10 has three output terminals: a first output terminal, a second output terminal, and a third output terminal. The first output terminal is electrically connected in sequence to a gas circuit switch 13, a gas pressure regulating valve 2, and a gas flow meter 3 via wires. The second output terminal is electrically connected in sequence to a liquid circuit switch 14 and a liquid flow meter 7 via wires. The third output terminal is electrically connected in sequence to a timer 15 and multiple parallel DC load ports 16 via wires. The gas circuit switch 13, the liquid circuit switch 14, and the timer 15 are all located on the top cover of the enclosure 1, while the DC load ports 16 are arranged side-by-side on the left side wall of the enclosure 1.

[0020] The rear side wall of the aforementioned housing 1 is also equipped with a gas communication interface 17 and a liquid communication interface 18. The gas communication interface 17 is used to transmit the pressure signal, flow signal, and temperature signal of the gas flow measurement pipeline to the computer, and the liquid communication interface 18 is used to transmit the pressure signal, flow signal, and temperature signal of the liquid flow measurement pipeline to the computer.

[0021] In use, first, connect this invention to a computer, that is, connect the gas communication interface 17 and / or the liquid communication interface 18 to the computer data interface via a data cable. Next, select the gas flow measurement pipeline or the liquid flow measurement pipeline according to the type of medium (gas or liquid) in the pipeline to be measured. The gas inlet pipe connector 4, gas outlet pipe connector 5, liquid inlet pipe connector 8, and liquid outlet pipe connector 9 can be fitted with adapters for 1 / 8" and 1 / 4" diameters. Connect the test pipelines with diameters of 5 / 16, 1 / 2, 5 / 32, 9 / 32, 3 / 8, and 9 / 16. If there are power-consuming components such as pumps and valves on the test pipeline, power them through the DC load port 16. Then, open the corresponding computer software, turn on the power switch 12, and turn on the gas circuit switch 13 or the liquid circuit switch 14. If there are requirements for the working time of power-consuming components such as pumps and valves, set the corresponding duration through the timer 15 to start the relevant measuring components in the test pipeline and the gas flow measurement pipeline / liquid flow measurement pipeline. The instantaneous flow rate, pressure, and temperature data of the fluid being measured in the pipeline are displayed on the computer screen in real time. At the same time, a flow curve with a time axis is also displayed based on the flow rate, pressure, and temperature data. After the measurement is completed, historical data can also be queried on the computer.

[0022] Using the above methods, this invention can be used for product selection and functional verification, such as for flow measurement, pressure measurement, and medium temperature measurement of fluid-related components and systems, including micro-liquid pumps or gas pumps (such as diaphragm pumps, gear pumps, peristaltic pumps, etc.), low-pressure solenoid valves, liquid or gas pipelines (such as various silicone tubes, rubber tubes, stainless steel tubes, PP tubes, etc., Φ4-Φ12), pipeline joints (such as pagoda joints, threaded joints, quick-connect joints, compression fittings, etc., for low-pressure, low-flow fluids), and low-pressure, low-flow fluid systems. This invention can also be used for lifespan verification of the fluid under test, i.e., by measuring the flow rate, pressure, and temperature of the fluid under test over a long period, to verify the lifespan degradation and usage of the test object. This invention can also be connected to a low-pressure, low-flow fluid system to measure the flow rate, temperature, and pressure of the fluid in a local or overall system.

[0023] It should be noted that in the description of this utility model, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", and "outer" indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An automated fluid flow measurement device, characterized in that: The enclosure includes a housing containing gas flow measurement pipelines and liquid flow measurement pipelines. The gas flow measurement pipeline includes a gas pressure regulating valve and a gas flow meter connected via a gas pipe. The gas pipe has a gas inlet connector and a gas outlet connector located on the side wall of the housing. The liquid flow measurement pipeline includes a liquid pressure regulating valve and a liquid flow meter connected via a liquid pipe. The liquid pipe has a liquid inlet connector and a liquid outlet connector located on the side wall of the housing. The housing also contains a power converter that converts 220V AC power to 24V DC power. The input terminal of the power converter is connected to a... An external power supply socket is connected to the side wall of the enclosure. The output terminals of the power converter include a first output terminal, a second output terminal, and a third output terminal. The first output terminal is electrically connected to the gas pressure regulating valve and the gas flow meter. The second output terminal is electrically connected to the liquid flow meter. The third output terminal is connected to a DC load port provided on the side wall of the enclosure. A gas communication interface and a liquid communication interface are also provided on the side wall of the enclosure. The gas communication interface is used to transmit the pressure signal and flow signal of the gas flow measurement pipeline to the computer. The liquid communication interface is used to transmit the pressure signal and flow signal of the liquid flow measurement pipeline to the computer.

2. The automated fluid flow measurement device according to claim 1, characterized in that: The box body is a rectangular structure with a top cover. The top cover and the box body are provided with a hinge on the rear side and a latch on the front side.

3. The automated fluid flow measurement device according to claim 1, characterized in that: The gas inlet pipe joint and the liquid inlet pipe joint are located on the same side of the housing, and the gas outlet pipe joint and the liquid outlet pipe joint are located on the other side of the housing relative to the gas inlet pipe joint and the liquid inlet pipe joint.

4. The automated fluid flow measurement device according to claim 1, characterized in that: The DC load ports are arranged side by side.

5. The automated fluid flow measurement device according to claim 1, characterized in that: A power switch is provided on the connection circuit between the external power socket and the power converter. Both the power switch and the external power socket are located on the rear side wall of the enclosure.

6. The automated fluid flow measurement device according to claim 1, characterized in that: A gas circuit switch is provided on the connection circuit between the power converter and the gas pressure regulating valve and the gas flow meter; a liquid circuit switch is provided on the connection circuit between the power converter and the liquid flow meter; and a timer is provided on the connection circuit between the power converter and the DC load port.

7. The automated fluid flow measurement device according to claim 6, characterized in that: The gas circuit switch, the liquid circuit switch, and the timer are all located on the top of the enclosure.

8. The automated fluid flow measurement device according to claim 1, characterized in that: The gas communication interface and the liquid communication interface are located on the rear side wall of the enclosure.

Images