Flue gas emission flow velocity measuring device

Abstract

The utility model relates to the technical field of flue gas flow velocity measurement, and discloses a flue gas emission flow velocity measuring device which comprises a pitot tube flowmeter, a mounting piece is mounted at the lower end of the pitot tube flowmeter, two connectors are fixedly arranged at the rear end of the pitot tube flowmeter, and dustproof structures are arranged on the outer walls of the connectors. The dustproof structure comprises two protection frames fixedly arranged at the rear end of the pitot tube flowmeter, sliding grooves are formed in the protection frames, fixing rods are slidably arranged in the sliding grooves, dustproof plates are rotatably installed on the outer walls of the fixing rods, vertical plates are fixedly arranged on one sides of the protection frames, and magnetic suction plates are fixedly arranged at the rear ends of the vertical plates. The dustproof plate is made of steel. According to the flue gas emission flow velocity measuring device disclosed by the utility model, the connector at the rear end of the pitot tube flowmeter can be better protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue gas flow velocity measurement, specifically to a flue gas emission flow velocity measuring device. BACKGROUND

[0002] The measurement of flue gas emission flow velocity is a very important part of environmental monitoring, which is usually used to assess whether the emission of facilities such as industrial boilers and gas emission ports meets environmental protection standards. Pitot tube is a classic tool for measuring air flow velocity and is widely used in the measurement of flue gas flow velocity. The principle of pitot tube is based on Bernoulli's law, which uses the pressure difference caused by fluid velocity to measure flow velocity.

[0003] The existing patent with publication number CN215114678U proposes an insertable pitot tube flowmeter, which comprises a flowmeter, the bottom end of the flowmeter is fixedly connected with a pipeline, the inner cavity of the pipeline is installed with a stopper, the top end of the pipeline is installed with a shell, the left side of the shell is connected with a handle, the right side of the handle is welded with a first rotating wheel, the bottom end of the first rotating wheel is engaged with a second rotating wheel, the bottom end of the second rotating wheel is welded with a third rotating wheel through the inner wall of the shell.

[0004] However, when using the flowmeter, it needs to be connected with the power cord and the connector. After removing the power cord at the rear end of the connector, the connector is exposed to the air for a long time, which can cause dust to enter the connector and affect the service life of the connector. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a flue gas emission flow velocity measuring device to solve the problem that the connector is exposed to the air for a long time after removing the power cord at the rear end of the connector, which can cause dust to enter the connector and affect the service life of the connector.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a flue gas emission flow velocity measuring device, comprising a pitot tube flowmeter, the lower end of the pitot tube flowmeter is installed with a mounting piece, the rear end of the pitot tube flowmeter is fixedly provided with two connectors, a dustproof structure is arranged on the outer wall of the connector, the dustproof structure comprises two protective frames fixedly arranged at the rear end of the pitot tube flowmeter, a sliding groove is formed in the inner part of the protective frame, a fixed rod is slidably arranged in the inner part of the sliding groove, a dustproof plate is rotatably installed on the outer wall of the fixed rod, a vertical plate is fixedly arranged on one side of the protective frame, a magnetic plate is fixedly arranged at the rear end of the vertical plate, and the material of the dustproof plate is steel.

[0007] Preferably, a soft pad is fixedly arranged on one side of the dustproof plate.

[0008] Preferably, rectangular trigger plates are fixedly arranged at the upper and lower ends of the dustproof plate.

[0009] Preferably, the interior of the protective frame is provided with a screw, and the output end of the screw is threadedly connected with the rear end of the pitot tube flowmeter through the protective frame.

[0010] Preferably, the soft pad is made of rubber material, and the shape of the soft pad is rectangular.

[0011] Preferably, the protective frame and the vertical plate are both made of steel.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1) By setting the protective structure, after the power cord is separated from the connector, the dustproof plate can be closed at one end of the dustproof plate with the soft pad to the rear end of the connector, so that the dustproof operation in the connector can be realized while avoiding the damage of the connector.

[0014] 2) By setting the soft pad made of rubber material, the stable contact of the soft pad with the rear end of the connector after being turned over can be ensured, and the damping installation of the dustproof plate in the sliding groove can be realized after the dustproof plate is stored, so that the sliding of the dustproof plate in the sliding groove is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective structural schematic view of a flue gas emission flow rate measuring device in the embodiment of the utility model;

[0016] Figure 2 It is a rear end structure schematic view of a pitot tube flowmeter in the embodiment of the utility model;

[0017] Figure 3 It is a protective frame cross-sectional structure schematic view in the embodiment of the utility model;

[0018] Figure 4 It is a dustproof plate structure schematic view in the embodiment of the utility model.

[0019] In the drawing: 1, pitot tube flowmeter; 2, mounting piece; 3, connector; 4, dustproof structure; 5, protective frame; 6, sliding groove; 7, fixed rod; 8, dustproof plate; 9, vertical plate; 10, magnetic attraction plate; 11, soft pad; 12, buckle plate; 13, screw. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Embodiment One

[0022] In combination Figures 1-4 , a flue gas emission flow rate measuring device, comprising a pitot tube flowmeter 1, a mounting piece 2 is installed at the lower end of the pitot tube flowmeter 1, two connecting heads 3 are fixedly arranged at the rear end of the pitot tube flowmeter 1, a dustproof structure 4 is arranged on the outer wall of the connecting head 3, the dustproof structure 4 comprises two protective frames 5 fixedly arranged at the rear end of the pitot tube flowmeter 1, a sliding groove 6 is formed in the inside of the protective frame 5, a fixed rod 7 is slidably arranged in the inside of the sliding groove 6, a dustproof plate 8 is rotatably installed on the outer wall of the fixed rod 7, a vertical plate 9 is fixedly arranged on one side of the protective frame 5, a magnetic plate 10 is fixedly arranged at the rear end of the vertical plate 9, and the material of the dustproof plate 8 is steel.

[0023] Referring to Figure 3 and Figure 4 , further obtained, the upper and lower ends of the dustproof plate 8 are fixedly arranged with rectangular trigger plates 12, the inside of the protective frame 5 is provided with a screw 13, the output end of the screw 13 is threadedly connected with the rear end of the pitot tube flowmeter 1 through the protective frame 5, the material of the soft pad 11 is rubber material, the shape of the soft pad 11 is rectangular, and the materials of the protective frame 5 and the vertical plate 9 are both steel.

[0024] Specifically, the trigger plate 12 facilitates the operating personnel to easily pull the dustproof plate 8, and the screw 13 is used to install the protective frame 5 and the pitot tube flowmeter 1.

[0025] Embodiment Two

[0026] Referring to Figure 3 , and on the basis of embodiment one, further obtained, the dustproof plate 8 is fixedly arranged with a soft pad 11 on one side.

[0027] Specifically, after the dustproof plate 8 is turned over, the soft pad 11 can better close the rear end of the connecting head 3, which can better isolate dust, and after the dustproof plate 8 is stored, the soft pad 11 will be in soft contact with the inside wall of one side of the sliding groove 6, so as to avoid the dustproof plate 8 from sliding out of the inside of the sliding groove 6 by itself.

[0028] In the actual operation process, when it is necessary to measure the flue gas in the pipeline, the mounting piece 2 is threadedly installed with the valve on the outer wall of the pipeline, after installation, the valve on the outer wall of the pipeline is opened, the pitot tube flowmeter 1 is pressed downward, so that the detection end of the pitot tube flowmeter 1 enters the inside of the flue gas pipeline;

[0029] The dustproof plate 8 is pulled, the dustproof plate 8 is pushed to the front end, the dustproof plate 8 is sent into the inside of the sliding groove 6, at this time, the soft pad 11 is in contact with the inside wall of one side of the sliding groove 6, and the dustproof plate 8 will not slide out by itself, the power cord is connected with the connecting head 3, and then the pitot tube flowmeter 1 is adjusted, so as to realize the measurement of the flue gas in the pipeline;

[0030] After the measurement is finished, the power cord is taken off, the dustproof plate 8 is pulled, the dustproof plate 8 is rotated, the dustproof plate 8 is adsorbed with the magnetic plate 10, the closing of the rear end of the connector 3 is realized, and the dustproof operation is realized.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flue gas emission velocity measuring device, comprising a Pitot tube flow meter (1), wherein a mounting component (2) is installed at the lower end of the Pitot tube flow meter (1), and two connectors (3) are fixedly provided at the rear end of the Pitot tube flow meter (1), characterized in that: A dustproof structure (4) is provided on the outer wall of the connector (3). The dustproof structure (4) includes two protective frames (5) fixedly installed at the rear end of the Pitot tube flow meter (1). A sliding groove (6) is provided inside the protective frame (5). A fixed rod (7) is slidably installed inside the sliding groove (6). A dustproof plate (8) is rotatably installed on the outer wall of the fixed rod (7). A vertical plate (9) is fixedly installed on one side of the protective frame (5). A magnetic suction plate (10) is fixedly installed at the rear end of the vertical plate (9). The dustproof plate (8) is made of steel.

2. The flue gas emission velocity measuring device according to claim 1, characterized in that: A soft pad (11) is fixedly installed on one side of the dustproof plate (8).

3. The flue gas emission velocity measuring device according to claim 1, characterized in that: The dustproof plate (8) is fixedly provided with rectangular fastening plates (12) at both the upper and lower ends.

4. The flue gas emission velocity measuring device according to claim 1, characterized in that: The protective frame (5) is equipped with a screw (13), and the output end of the screw (13) passes through the protective frame (5) and is threaded to the rear end of the Pitot tube flow meter (1).

5. The flue gas emission velocity measuring device according to claim 2, characterized in that: The cushion (11) is made of rubber and is rectangular in shape.

6. The flue gas emission velocity measuring device according to claim 1, characterized in that: The protective frame (5) and the vertical plate (9) are both made of steel.

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