Straight pipe type float flowmeter

Abstract

The invention relates to the technical field of petroleum equipment, in particular to a straight pipe type float flowmeter which structurally comprises a fluid inlet, a measuring pipe, a measuring cavity, a floater, a floater connecting rod, an induction magnet, a linear Hall sensor assembly, a wiring pipe, a floater connecting rod fixing sleeve, a triangular supporting frame, a fluid outlet and a digital display instrument. According to the principle of the method, fluid flows through the measuring pipe through the fluid inlet and then enters the measuring cavity, the fluid pushes the floater to move upwards, and the linear Hall sensor assembly generates electric signals through position changes of the induction magnet on the top of the floater connecting rod; the digital display instrument calculates the real-time flow and the accumulated flow according to the linear relation between the signal intensity of the Hall sensor assembly and the displacement of the floater.

Description

Technical Field

[0001] The present invention relates to the technical field of petroleum equipment, in particular to a straight tube type float flowmeter. Background Art

[0002] Most traditional float flowmeters used in the petroleum and industrial fields are limited by their own structural characteristics and are installed horizontally or are difficult to install due to the large size and weight of the flowmeter body. In order to facilitate the installation and arrangement of the flowmeter under vertical installation conditions, a straight tube float flowmeter technical solution is adopted. Summary of the Invention

[0003] In order to solve the above technical problems, a straight tube float flowmeter with a compact structure, safety and reliability is provided, which is suitable for complex working environments. The present invention adopts the following technical solutions: A straight tube float flowmeter, whose structure includes a fluid inlet, a measuring tube, a measuring cavity, a float, a float connecting rod, an induction magnet, a linear Hall sensor assembly, a wiring tube, a float connecting rod fixing sleeve, a triangular support frame, a fluid outlet, and a digital display instrument; wherein, the fluid inlet is the inlet for fluid to enter a straight tube float flowmeter, and the fluid outlet is the outlet for fluid to flow out of a straight tube float flowmeter; a measuring tube is provided at the top of the fluid inlet, a measuring cavity is provided at the top of the measuring tube, a float is provided inside the measuring cavity, the top of the float is connected to the float connecting rod, the top of the float connecting rod is embedded with an induction magnet, a triangular support frame is provided at the top of the measuring cavity, a circular groove is provided in the center of the triangular support frame for fixing the float connecting rod fixing sleeve, a passage is provided inside one corner of the triangular support frame, a wiring tube is installed in the passage, a linear Hall sensor assembly and a data transmission line and a power line are provided inside the wiring tube, and the data transmission line and the power line are connected to the digital display instrument.

[0004] A straight tube float flowmeter. Its working principle is that fluid flows through the fluid inlet, through the measuring tube, and then into the measuring cavity. The fluid pushes the float upward, and the linear Hall sensor assembly generates an electrical signal through the position change of the induction magnet at the top of the float connecting rod. The digital display instrument calculates the real-time flow rate and accumulated flow rate based on the linear relationship between the Hall sensor assembly signal strength and the float displacement.

[0005] Preferably, the float is fixed to the induction magnet via a float connecting rod, and the linear Hall sensor assembly is installed in the wiring tube to form a non-contact displacement detection system with the induction magnet.

[0006] Preferably, the overall structure of a straight tube float flowmeter is made of corrosion-resistant and explosion-proof materials.

[0007] Preferably, the digital display instrument is a device that integrates data acquisition and processing and data transmission functional assembly and an independent power supply.

[0008] Furthermore, the fluid inlet is connected to a measuring tube, and the measuring tube is vertically installed in the measuring cavity.

[0009] The beneficial effects of the present invention are: adopting an impulse-sensing float flowmeter design, eliminating the influence of mechanical wear on measurement accuracy through non-contact detection of a linear Hall sensor assembly and an induction magnet, and a straight tube float flowmeter adopting a vertical installation design. The above solution makes the flowmeter easy to install and improves the stability and accuracy of the flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural diagram of a straight tube float flowmeter.

[0011] Figure 2 The diagram is a cross-sectional structural diagram of a straight tube float flowmeter.

[0012] Figure 3 It is a schematic diagram of the explosion structure of a straight tube float flowmeter. In the figure: 101-digital display instrument, 201-fluid inlet, 202-measuring tube, 203-measuring chamber, 204-float, 205-float connecting rod, 206-induction magnet, 207-linear Hall sensor assembly, 208-fluid outlet, 301-wiring tube, 302-float connecting rod fixing sleeve, 303-triangular support frame. DETAILED DESCRIPTION

[0013] The embodiment of the present invention provides a straight tube float flowmeter, such as Figure 1 、 Figure 2 、 Figure 3 As shown, a straight tube float flowmeter, its structure includes a digital display instrument 101, a fluid inlet 201, a measuring tube 202, a measuring chamber 203, a float 204, a float connecting rod 205, an induction magnet 206, a linear Hall sensor assembly 207, a fluid outlet 208, a wiring tube 301, a float connecting rod fixing sleeve 302, and a triangular support frame 303; wherein, the fluid inlet 201 is the inlet for the fluid to enter a straight tube float flowmeter, and the fluid outlet 208 is the outlet for the fluid to flow out of a straight tube float flowmeter; the top of the fluid inlet 201 is provided with a measuring tube 202, and the measuring tube 208 is provided with a measuring tube 203. A measuring cavity 203 is provided on the top of 02, and a float 204 is provided inside the measuring cavity. The top of the float 204 is connected to the float connecting rod 205, and the top of the float connecting rod 205 is embedded with an induction magnet 206. A triangular support frame 303 is provided on the top of the measuring cavity 203. A circular groove is provided in the center of the triangular support frame 303 for fixing the float connecting rod fixing sleeve 302. A passage is provided inside one corner of the triangular support frame 303, and a wiring tube 301 is installed in the passage. A linear Hall sensor assembly 207, a data transmission line and a power line are provided inside the wiring tube 301. The data transmission line and the power line are connected to the digital display instrument 301.

[0014] A straight tube float flowmeter. When in operation, fluid flows through the fluid inlet 201, the measuring tube 202, and then into the measuring chamber 203. The fluid pushes the float 204 upward, thereby moving the float connecting rod 205 upward, and then moving the induction magnet 206 upward. The linear Hall sensor assembly 207 generates an electrical signal through the position change of the induction magnet 206 at the top of the float connecting rod 205. The digital display instrument 301 calculates the real-time flow rate and the accumulated flow rate based on the linear relationship between the signal strength of the Hall sensor assembly 207 and the displacement of the float 204.

[0015] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A straight tube float flowmeter, characterized in that: Its structure includes a fluid inlet, a measuring tube, a measuring cavity, a float, a float connecting rod, an induction magnet, a linear Hall sensor assembly, a wiring tube, a float connecting rod fixing sleeve, a triangular support frame, a fluid outlet, and a digital display instrument; wherein, the fluid inlet is the inlet for the fluid to enter a straight tube float flowmeter, and the fluid outlet is the outlet for the fluid to flow out of a straight tube float flowmeter; a measuring tube is provided at the top of the fluid inlet, a measuring cavity is provided at the top of the measuring tube, a float is provided inside the measuring cavity, the top of the float is connected to the float connecting rod, the top of the float connecting rod is embedded with an induction magnet, a triangular support frame is provided at the top of the measuring cavity, a circular groove is provided in the center of the triangular support frame for fixing the float connecting rod fixing sleeve, a passage is provided inside one corner of the triangular support frame, a wiring tube is installed in the passage, a linear Hall sensor assembly as well as a data transmission line and a power line are provided inside the wiring tube, and the data transmission line and the power line are connected to the digital display instrument.

2. A straight tube float flowmeter according to claim 1, characterized in that: The fluid enters the measuring chamber after flowing through the fluid inlet and the measuring tube. The fluid pushes the float upward, and the linear Hall sensor assembly generates an electrical signal through the position change of the induction magnet at the top of the float connecting rod. The digital display calculates the real-time flow rate and accumulated flow rate based on the linear relationship between the Hall sensor assembly signal strength and the float displacement.

3. A straight tube float flowmeter according to claim 1, characterized in that: The float is fixed to the induction magnet through a float connecting rod, and the linear Hall sensor assembly is installed in the wiring tube to form a non-contact displacement detection system with the induction magnet.

4. A straight tube float flowmeter according to claim 1, characterized in that: The overall structure of a straight tube float flowmeter adopts anti-corrosion and explosion-proof materials.

5. The straight tube type float flowmeter according to claim 1, characterized in that: The digital display instrument is a device that integrates data acquisition and processing and data transmission functional assemblies and is independently powered.

6. A straight tube float flowmeter according to claim 1, characterized in that: The fluid inlet is connected to a measuring tube, and the measuring tube is vertically installed in the measuring cavity.

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